Grow the json_view dump's output in steps and compare raw-number dumps

- The output string reserves the size estimate (the source extent) and grows in steps of 64 KiB within it, instead of being resized to the estimate at once: resize() zero-fills, and for a pretty-printed source the estimate is far larger than the compact output. citm_catalog dump: 342 -> 283 us on x86-64, 144 -> 134 us on Apple M1. - bench_corpus compares the dump with source numbers with yyjson writing numbers read as raw text (YYJSON_READ_NUMBER_AS_RAW); both write the same bytes. Signed-off-by: Niels Lohmann <mail@nlohmann.me>
Scan strings vector-first on x86-64 and avoid a stall when nesting
2026-10-11 17:07:15 +00:00 · 2026-10-06 08:41:16 +02:00 · 2026-10-06 07:22:15 +02:00 · 2026-10-05 22:28:58 +02:00 · 2026-10-05 20:25:36 +02:00 · 2026-10-05 20:16:24 +02:00
509 changed files with 41370 additions and 47589 deletions
@@ -1,3 +0,0 @@
-# generated files are collapsed in diffs and excluded from language statistics
-single_include/** linguist-generated
-nlohmann_json.natvis linguist-generated
@@ -1,5 +1,5 @@
 # JSON for Modern C++ was originally written by Niels Lohmann.
-# Since 2013, over 400 contributors have helped to improve the library.
+# Since 2013, over 250 contributors have helped to improve the library.
 # This CODEOWNERS file is only to make sure that @nlohmann is requested
 # for a code review in case of a pull request.

@@ -98,7 +98,7 @@ $ ctest --test-dir build -j 10
 The test suite should report:

 ```
-100% tests passed, 0 tests failed out of <number of tests>
+100% tests passed, 0 tests failed out of 98
 ```

 #### Add tests
@@ -149,17 +149,14 @@ make build -C docs/mkdocs          # strict build: fails on broken links, anchor
 make check_mermaid -C docs/mkdocs  # checks the Mermaid diagrams (requires Node.js)
 ```

-The search index of the docset is generated from [`mkdocs.yml`](https://github.com/nlohmann/json/blob/develop/docs/mkdocs/mkdocs.yml)
-and each page's title (H1) and declaration by
-[`docs/docset/generate_docset.py`](https://github.com/nlohmann/json/blob/develop/docs/docset/generate_docset.py);
-`make build` reports API pages that cannot be classified.
+A new API page also needs an entry in [`docs/docset/docSet.sql`](https://github.com/nlohmann/json/blob/develop/docs/docset/docSet.sql),
+the search index of the docset; `make build` reports missing entries.

 ### Amalgamate the source code

 The single-header files
-[`single_include/nlohmann/json.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json.hpp),
-[`single_include/nlohmann/json_fwd.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json_fwd.hpp), and
-[`single_include/nlohmann/json_literals.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json_literals.hpp)
+[`single_include/nlohmann/json.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json.hpp) and
+[`single_include/nlohmann/json_fwd.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json_fwd.hpp)
 are **generated** from the source files in the
 [`include/nlohmann` directory](https://github.com/nlohmann/json/tree/develop/include/nlohmann). **Do not** edit the
 files directly; instead, modify the include/nlohmann sources and regenerate the files by executing:
@@ -182,7 +179,7 @@ The amalgamation check in CI fails if any of these generated files is out of dat

 ## Recommended documentation

- The library’s [README file](https://github.com/nlohmann/json/blob/develop/README.md) is an excellent starting point to
+- The library’s [README file](https://github.com/nlohmann/json/blob/master/README.md) is an excellent starting point to
  understand its functionality.
 - The [documentation page](https://json.nlohmann.me) is the reference documentation of the library.
 - [RFC 8259](https://datatracker.ietf.org/doc/html/rfc8259) is the reference for the JavaScript Object Notation (JSON)
@@ -208,9 +205,6 @@ API of the 3.x.y version is broken. This includes:
 - Changing access specifiers.
 - Changing default arguments.

-What is and is not covered by this guarantee is described in the
-[roadmap](https://json.nlohmann.me/community/roadmap/#api-stability).
-
 Although these guidelines may seem restrictive, they are essential for maintaining the library’s utility.

 Breaking changes may be introduced when they are guarded with a feature macro such as
@@ -221,9 +215,9 @@ feature macros then allows users to test their code against the library in the n
 ### Break C++11 language conformance

 This library is designed to work with C++11 and later. This means that any
-[supported C++11 compiler](https://github.com/nlohmann/json/blob/develop/README.md#supported-compilers) should compile
+[supported C++11 compiler](https://github.com/nlohmann/json/blob/master/README.md#supported-compilers) should compile
 the library without problems. Some compilers like GCC 4.7 (and earlier), Clang 3.3 (and earlier), or Microsoft Visual
-C++ 2013 and earlier are known not to work due to missing or incomplete C++11 support.
+Studio 13.0 and earlier are known not to work due to missing or incomplete C++11 support.

 Please do not add features that do not work with the mentioned supported compilers. Please guard features from C++14 and
 later against the respective [`JSON_HAS_CPP_14`](https://json.nlohmann.me/api/macros/json_has_cpp_11/) macros.
@@ -239,11 +233,12 @@ extension.
 The following areas really need contribution and are always welcomed:

 - Extending the **continuous integration** toward more exotic compilers such as Android NDK, Intel's Compiler, or the
-  bleeding-edge versions of Clang.
- Improving the efficiency of the **JSON parser**. The current parser is a hand-written iterative parser that keeps an
-  explicit stack instead of recursing, with hand-coded string handling. Speeding up the lexer or the value construction
-  would be appreciated. Parser generators like Bison or ANTLR do not play nice with single-header files -- I really
-  would like to keep the parser inside the `json.hpp` header.
+  bleeding-edge versions Clang.
+- Improving the efficiency of the **JSON parser**. The current parser is implemented as a naive recursive descent parser
+  with hand-coded string handling. More sophisticated approaches like LALR parsers would be really appreciated. That
+  said, parser generators like Bison or ANTLR do not play nice with single-header files -- I really would like to keep
+  the parser inside the `json.hpp` header, and I am not aware of approaches similar to [`re2c`](http://re2c.org) for
+  parsing.
 - Extending and updating existing **benchmarks** to include (the most recent version of) this library. Though efficiency
  is not everything, speed and memory consumption are very important characteristics for C++ developers, so having
  proper comparisons would be interesting.
@@ -52,7 +52,7 @@ body:
        If possible, provide a small and self-contained example that triggers
        the bug. Please understand that we cannot analyze and debug large code
        bases. Please do not paste screenshots here.
-      render: cpp
+      render: Shell
  - type: textarea
    id: output
    attributes:
@@ -79,7 +79,7 @@ body:
      description: >
        Which version of the library did you use? If it is a released version,
        please enter the version number (e.g., 3.12.0). Otherwise, please enter
-        the commit hash. If you got the library from another source than the
+        the commit hash. If you got the library from another source as the
        GitHub repository (e.g., via a package manager), please also state
        this.
    validations:
@@ -16,9 +16,6 @@ only_commits:

 environment:
  matrix:
-    # The Visual Studio 2017 jobs compile everything with /std:c++17, so they
-    # only build the C++17 variant of each test, split into two jobs each to
-    # stay below AppVeyor's 60-minute limit per job.
    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
      configuration: Debug
      platform: x86
@@ -37,13 +34,7 @@ environment:
      configuration: Release
      platform: x86
      CXX_FLAGS: "/permissive- /std:c++17 /utf-8 /W4 /WX"
-      CMAKE_OPTIONS: "-DJSON_TestStandards=17 -DJSON_TestShard=0/2"
-      GENERATOR: Visual Studio 15 2017
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      configuration: Release
-      platform: x86
-      CXX_FLAGS: "/permissive- /std:c++17 /utf-8 /W4 /WX"
-      CMAKE_OPTIONS: "-DJSON_TestStandards=17 -DJSON_TestShard=1/2"
+      CMAKE_OPTIONS: ""
      GENERATOR: Visual Studio 15 2017

    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
@@ -64,13 +55,7 @@ environment:
      configuration: Release
      platform: x64
      CXX_FLAGS: "/permissive- /std:c++17 /Zc:__cplusplus /utf-8 /W4 /WX"
-      CMAKE_OPTIONS: "-DJSON_TestStandards=17 -DJSON_TestShard=0/2"
-      GENERATOR: Visual Studio 15 2017
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
-      configuration: Release
-      platform: x64
-      CXX_FLAGS: "/permissive- /std:c++17 /Zc:__cplusplus /utf-8 /W4 /WX"
-      CMAKE_OPTIONS: "-DJSON_TestStandards=17 -DJSON_TestShard=1/2"
+      CMAKE_OPTIONS: ""
      GENERATOR: Visual Studio 15 2017

 init:
@@ -81,10 +66,15 @@ install:
  - if "%platform%"=="x86"    set GENERATOR_PLATFORM=Win32

 before_build:
-  - cmake . -G "%GENERATOR%" -A "%GENERATOR_PLATFORM%" -DCMAKE_CXX_FLAGS="%CXX_FLAGS%" -DCMAKE_IGNORE_PATH="C:/Program Files/Git/usr/bin" -DJSON_BuildTests=On %CMAKE_OPTIONS%
+  - cmake . -G "%GENERATOR%" -A "%GENERATOR_PLATFORM%" -DCMAKE_CXX_FLAGS="%CXX_FLAGS%" -DCMAKE_IGNORE_PATH="C:/Program Files/Git/usr/bin" -DJSON_BuildTests=On "%CMAKE_OPTIONS%"

 build_script:
  - cmake --build . --config "%configuration%" --parallel 2

 test_script:
-  - ctest -C "%configuration%" --parallel 2 --output-on-failure
+  - if "%configuration%"=="Release" ctest -C "%configuration%" --parallel 2 --output-on-failure
+  # On Debug builds, skip test-unicode_all
+  # as it is extremely slow to run and cause
+  # occasional timeouts on AppVeyor.
+  # More info: https://github.com/nlohmann/json/pull/1570
+  - if "%configuration%"=="Debug" ctest --exclude-regex "test-unicode" -C "%configuration%" --parallel 2 --output-on-failure
@@ -21,17 +21,6 @@ labels:
  files:
    - "cmake/.*"

-# other build systems
- label: "CMake"
-  files:
-    - "(meson\\.build|meson_options\\.txt|BUILD\\.bazel|MODULE\\.bazel|Package\\.swift)"
-
- label: "documentation"
-  files:
-    - ".github/ISSUE_TEMPLATE/.*"
-    - ".github/config\\.yml"
-    - ".github/(CONTRIBUTING|SECURITY|CODE_OF_CONDUCT|PULL_REQUEST_TEMPLATE)\\.md"
-
 - label: "CI"
  files:
    - ".github/workflows/.*"
@@ -56,6 +45,24 @@ labels:
 - label: "aspect: binary formats"
  title: "(?i)(bson|cbor|msgpack|messagepack|ubjson|bjdata|bon8|binary format)"

+- label: "aspect: json_view"
+  files:
+    - "include/nlohmann/json_view\\.hpp"
+    - "include/nlohmann/detail/view/.*"
+    - "single_include/nlohmann/json_view\\.hpp"
+    - "tests/src/unit-json_view.*"
+    - "tests/src/fuzzer-(parse_json_view|json_view_image)\\.cpp"
+    - "tests/benchmarks/json_view/.*"
+    - "tools/amalgamate/config_json_view\\.json"
+    - "docs/mkdocs/docs/features/json_view\\.md"
+    - "docs/mkdocs/docs/api/basic_json_(document|view)/.*"
+    - "docs/mkdocs/docs/api/(ordered_)?json_(editable_)?(document|view)\\.md"
+    - "docs/mkdocs/docs/examples/(basic_json_(document|view)__|(ordered_)?json_(editable_)?(document|view)).*"
+    - "tests/benchmarks/src/benchmarks_view\\.cpp"
+
+- label: "aspect: json_view"
+  title: "(?i)(json_view|json_document|zero-copy)"
+
 - label: "python"
  files:
    - "\\.py$"
@@ -83,7 +83,8 @@ jobs:
          # byte for byte), so there is nothing to gain from checking out a
          # separate copy, and doing so would make this step fail on a PR
          # that adds support for a new dispatch table until that PR itself
-          # merges to develop.
+          # merges to develop, the same way generate_natvis.py's --version
+          # requirement briefly did.
          TMPDIR=$(mktemp -d ./macro_builder_check.XXXXXX)
          c++ -std=c++11 tools/macro_builder/main.cpp -o "$TMPDIR/macro_builder"
          "$TMPDIR/macro_builder" > "$TMPDIR/paste.hpp"
@@ -116,12 +117,16 @@ jobs:

          python3 $TOOL_DIR/amalgamate.py -c $TOOL_DIR/config_json.json -s .
          python3 $TOOL_DIR/amalgamate.py -c $TOOL_DIR/config_json_fwd.json -s .
+          cp include/nlohmann/json_literals.hpp $INCLUDE_DIR/json_literals.hpp
+          # the configuration of json_view.hpp comes with the pull request until
+          # it is on develop; the tool itself is still develop's
+          python3 $TOOL_DIR/amalgamate.py -c $MAIN_DIR/tools/amalgamate/config_json_view.json -s .

          # the header list of the Bazel "json" target must match the files in include/
          cmake -P cmake/scripts/gen_bazel_build_file.cmake

          ${{ github.workspace }}/venv/bin/astyle --project=tools/astyle/.astylerc --suffix=none --quiet \
-            $INCLUDE_DIR/json.hpp $INCLUDE_DIR/json_fwd.hpp
+            $INCLUDE_DIR/json.hpp $INCLUDE_DIR/json_fwd.hpp $INCLUDE_DIR/json_view.hpp

          # fail loudly if a directory is renamed or removed: find would only warn
          # about the missing path and silently drop its files from the check
@@ -136,21 +141,18 @@ jobs:
          ${{ github.workspace }}/venv/bin/astyle --project=tools/astyle/.astylerc --suffix=none --quiet \
            $(find $SOURCE_DIRS -type f \( -name '*.hpp' -o -name '*.cpp' -o -name '*.cu' \) -not -path 'tests/thirdparty/*' -not -path 'tests/abi/include/nlohmann/*' | sort)

-          # json_literals.hpp is copied verbatim from the (now formatted) include/
-          # directory, like `make amalgamate` does
-          cp include/nlohmann/json_literals.hpp $INCLUDE_DIR/json_literals.hpp
-
      - name: Regenerate nlohmann_json.natvis
        run: |
          cd $MAIN_DIR
-          # The template is what this check verifies the committed natvis
-          # file against, so take it from this PR rather than from the
-          # develop checkout: generate_natvis.py loads the template from its
-          # own directory, and with develop's copy a PR that changes the
-          # template could never pass. Like the macro_builder step above,
-          # this only renders PR content in a job without credentials.
-          cp tools/generate_natvis/nlohmann_json.natvis.j2 $NATVIS_TOOL_DIR/
-          python3 $NATVIS_TOOL_DIR/generate_natvis.py $MAIN_DIR
+          # Pass --version explicitly so this step also works with the tool
+          # copy from develop before this repository's own generate_natvis.py
+          # learns to derive the version itself: the older script requires
+          # --version, and the newer one accepts it as an explicit override.
+          ABI_MACROS=include/nlohmann/detail/abi_macros.hpp
+          VERSION_MAJOR=$(grep -m1 'define NLOHMANN_JSON_VERSION_MAJOR' $ABI_MACROS | grep -o '[0-9]\+')
+          VERSION_MINOR=$(grep -m1 'define NLOHMANN_JSON_VERSION_MINOR' $ABI_MACROS | grep -o '[0-9]\+')
+          VERSION_PATCH=$(grep -m1 'define NLOHMANN_JSON_VERSION_PATCH' $ABI_MACROS | grep -o '[0-9]\+')
+          python3 $NATVIS_TOOL_DIR/generate_natvis.py --version "$VERSION_MAJOR.$VERSION_MINOR.$VERSION_PATCH" $MAIN_DIR

      - name: Build patch and check for differences
        id: diff
@@ -159,7 +161,7 @@ jobs:
          mkdir -p ${{ github.workspace }}/patch
          git diff --patch --no-color > ${{ github.workspace }}/patch/amalgamation.patch
          if [ -s ${{ github.workspace }}/patch/amalgamation.patch ]; then
-            echo "The source code has not been amalgamated/formatted correctly, or BUILD.bazel, nlohmann_json.natvis, or the macro_builder tables in macro_scope.hpp are out of date ('make amalgamate BUILD.bazel natvis' fixes all but the tables, see tools/macro_builder/README.md). Diff:"
+            echo "The source code has not been amalgamated/formatted correctly or BUILD.bazel is out of date. Diff:"
            cat ${{ github.workspace }}/patch/amalgamation.patch
            echo "has_diff=true" >> "$GITHUB_OUTPUT"
          else
@@ -96,7 +96,7 @@ jobs:
              issue_number: issue_number,
              owner: context.repo.owner,
              repo: context.repo.repo,
-              body: '## 🔴 Amalgamation check failed! 🔴\nThe source code has not been amalgamated and/or formatted correctly, or `BUILD.bazel`, `nlohmann_json.natvis`, or the macro_builder tables in `macro_scope.hpp` are out of date. `make amalgamate BUILD.bazel natvis` fixes all but the tables (see `tools/macro_builder/README.md`).'
+              body: '## 🔴 Amalgamation check failed! 🔴\nThe source code has not been amalgamated and/or formatted correctly, or `BUILD.bazel` is out of date.'
                    + (hasPatch ? '\n\n📎 A ready-to-apply patch is attached to the [failed workflow run](' + runUrl + ') as the `amalgamation-patch` artifact.'
                                  + ' Download it, then apply it locally from the repository root with:'
                                  + '\n\n```shell\ngit apply amalgamation.patch\n```\n\n'
@@ -0,0 +1,78 @@
+name: "json_view benchmarks"
+
+# On demand only: runs the comparison of json_view with yyjson, simdjson, and
+# Boost.JSON (tests/benchmarks/json_view/compare.py) on GitHub-hosted runners,
+# for numbers from x86-64 and AArch64 Linux. It runs when started by hand, or
+# when a pull request gets the label "benchmark" (on both architectures, with
+# GCC and the default settings). Shared runners are noisy: the results show
+# where json_view stands, but published numbers need a quiet machine (see
+# tests/benchmarks/json_view/README.md).
+
+on:
+  pull_request:
+    types: [labeled]
+  workflow_dispatch:
+    inputs:
+      runner:
+        description: "Runner image"
+        type: choice
+        options:
+          - ubuntu-24.04
+          - ubuntu-24.04-arm
+        default: ubuntu-24.04
+      compiler:
+        description: "Compiler"
+        type: choice
+        options:
+          - g++
+          - clang++
+        default: g++
+      native:
+        description: "Compile for the runner's CPU (-march=native)"
+        type: boolean
+        default: false
+      rounds:
+        description: "Rounds of bench_view"
+        type: number
+        default: 30
+
+permissions:
+  contents: read
+
+jobs:
+  compare:
+    if: github.event_name == 'workflow_dispatch' || github.event.label.name == 'benchmark'
+    strategy:
+      matrix:
+        runner: ${{ fromJSON(github.event_name == 'workflow_dispatch' && format('["{0}"]', inputs.runner) || '["ubuntu-24.04", "ubuntu-24.04-arm"]') }}
+    runs-on: ${{ matrix.runner }}
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@e14015d583714f6e62063499dc959a02595150a1 # v2.21.1
+        with:
+          egress-policy: audit
+
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          persist-credentials: false
+
+      - name: Download test data
+        run: |
+          cmake -S . -B build -DJSON_BuildTests=On
+          cmake --build build --target download_test_data
+
+      - name: Run the comparison
+        env:
+          CXX: ${{ inputs.compiler || 'g++' }}
+          CC: ${{ inputs.compiler == 'clang++' && 'clang' || 'gcc' }}
+          ROUNDS: ${{ inputs.rounds || 30 }}
+          NATIVE: ${{ inputs.native && '--native' || '' }}
+        run: python3 tests/benchmarks/json_view/compare.py --data build/test_files --download --rounds "$ROUNDS" $NATIVE
+
+      - name: Summary
+        run: cat tests/benchmarks/json_view/results/*.md >> "$GITHUB_STEP_SUMMARY"
+
+      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        with:
+          name: json_view-benchmarks-${{ matrix.runner }}-${{ inputs.compiler || 'g++' }}
+          path: tests/benchmarks/json_view/results/
@@ -17,11 +17,11 @@ permissions:
  contents: read

 jobs:
-  macos-15:
-    runs-on: macos-15 # https://github.com/actions/runner-images/blob/main/images/macos/macos-15-Readme.md
+  macos-14:
+    runs-on: macos-14 # https://github.com/actions/runner-images/blob/main/images/macos/macos-14-Readme.md
    strategy:
      matrix:
-        xcode: ['16.0', '16.1', '16.2', '16.3', '16.4', '26.0.1', '26.1.1', '26.2', '26.3']
+        xcode: ['15.0.1', '15.1', '15.2', '15.3', '15.4']
    env:
      DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode }}.app/Contents/Developer

@@ -36,11 +36,11 @@ jobs:
      - name: Test
        run: cd build ; ctest -j 10 --output-on-failure

-  macos-26:
-    runs-on: macos-26 # https://github.com/actions/runner-images/blob/main/images/macos/macos-26-arm64-Readme.md
+  macos-15:
+    runs-on: macos-15 # https://github.com/actions/runner-images/blob/main/images/macos/macos-15-Readme.md
    strategy:
      matrix:
-        xcode: ['26.4.1', '26.5', '26.6']
+        xcode: ['16.0', '16.1', '16.2', '16.3', '16.4', '26.0.1']
    env:
      DEVELOPER_DIR: /Applications/Xcode_${{ matrix.xcode }}.app/Contents/Developer

@@ -71,38 +71,3 @@ jobs:
        run: cmake --build build --parallel 10
      - name: Test
        run: cd build ; ctest -j 10 --output-on-failure
-
-  swiftpm:
-    runs-on: macos-15
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Check that Package.swift resolves without a deprecation warning
-        run: swift package dump-package
-      - name: Build the SwiftPM documentation example against this checkout
-        run: |
-          mkdir -p /tmp/json-swiftpm-consumer/Sources/MyLibrary
-          cp docs/mkdocs/docs/integration/swift/example.cpp /tmp/json-swiftpm-consumer/Sources/MyLibrary/example.cpp
-          cat > /tmp/json-swiftpm-consumer/Package.swift << EOF
-          // swift-tools-version: 5.9
-          import PackageDescription
-
-          let package = Package(
-              name: "MyPackage",
-              dependencies: [
-                  .package(path: "${{ github.workspace }}")
-              ],
-              targets: [
-                  .target(
-                      name: "MyLibrary",
-                      dependencies: [
-                          .product(name: "json", package: "json")
-                      ],
-                      publicHeadersPath: "."
-                  )
-              ]
-          )
-          EOF
-          cd /tmp/json-swiftpm-consumer
-          swift build
@@ -15,7 +15,6 @@ on:
      - .github/SECURITY.md
      - cmake/clang_flags.cmake
      - cmake/gcc_flags.cmake
-      - include/nlohmann/detail/abi_macros.hpp
      - tests/fmt_formatter/project/main.cpp
      - tools/astyle/.astylerc
  workflow_dispatch:
@@ -31,51 +31,6 @@ jobs:
      - name: Build
        run: cmake --build build --target ci_test_gcc

-  ci_meson_install:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Get latest CMake and ninja
-        uses: lukka/get-cmake@fffaaafeea488556c2c12dad60690008bc1caacb # v4.4.2
-      - name: Check that Meson and pkg-config offer the CMake options
-        run: make check_build_options
-      - name: Install Meson
-        run: pip install meson
-      - name: Install with Meson
-        run: |
-          meson setup build-meson --prefix=${{ github.workspace }}/install
-          meson install -C build-meson
-      - name: Use the installed package with find_package
-        run: |
-          cmake -S tests/cmake_import/project -B build-import -DCMAKE_PREFIX_PATH=${{ github.workspace }}/install
-          cmake --build build-import
-      - name: Install with Meson and non-default options
-        run: |
-          meson setup build-meson-options --prefix=${{ github.workspace }}/install-options -DMultipleHeaders=true -DDiagnostics=true -DGlobalUDLs=false -DDisableTupleReferenceConversion=true -DStrictBinaryUTF8=true -DDeleteDeprecatedFunctions=true
-          meson install -C build-meson-options
-      - name: Check that the options reach the installed files
-        run: |
-          test -d install-options/include/nlohmann/detail
-          cflags=$(PKG_CONFIG_PATH=${{ github.workspace }}/install-options/share/pkgconfig pkg-config --cflags nlohmann_json)
-          echo "$cflags"
-          echo "$cflags" | grep -q -- '-DJSON_DIAGNOSTICS=1'
-          echo "$cflags" | grep -q -- '-DJSON_USE_GLOBAL_UDLS=0'
-          echo "$cflags" | grep -q -- '-DJSON_DISABLE_TUPLE_REFERENCE_CONVERSION=1'
-          echo "$cflags" | grep -q -- '-DJSON_STRICT_BINARY_UTF8=1'
-          echo "$cflags" | grep -q -- '-DJSON_DELETE_DEPRECATED_FUNCTIONS=1'
-          grep -q 'JSON_USE_GLOBAL_UDLS=0;JSON_DISABLE_TUPLE_REFERENCE_CONVERSION=1;JSON_DIAGNOSTICS=1' install-options/share/cmake/nlohmann_json/nlohmann_jsonTargets.cmake
-          grep -q 'JSON_STRICT_BINARY_UTF8=1;JSON_DELETE_DEPRECATED_FUNCTIONS=1' install-options/share/cmake/nlohmann_json/nlohmann_jsonTargets.cmake
-          cmake -S tests/cmake_import/project -B build-import-options -DCMAKE_PREFIX_PATH=${{ github.workspace }}/install-options
-          cmake --build build-import-options
-      - name: Install with Meson and the include directory outside the prefix
-        run: |
-          meson setup build-meson-split --prefix=${{ github.workspace }}/install-split --includedir=${{ github.workspace }}/install-split-dev/include
-          meson install -C build-meson-split
-          cmake -S tests/cmake_import/project -B build-import-split -DCMAKE_PREFIX_PATH=${{ github.workspace }}/install-split
-          cmake --build build-import-split
-
  ci_infer:
    runs-on: ubuntu-latest
    steps:
@@ -109,7 +64,7 @@ jobs:
    runs-on: ubuntu-latest
    strategy:
      matrix:
-        target: [ci_test_single_header, ci_cppcheck, ci_cpplint, ci_reproducible_tests, ci_non_git_tests, ci_offline_testdata, ci_reuse_compliance, ci_test_valgrind]
+        target: [ci_test_amalgamation, ci_test_single_header, ci_cppcheck, ci_cpplint, ci_reproducible_tests, ci_non_git_tests, ci_offline_testdata, ci_reuse_compliance, ci_test_valgrind]
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@e14015d583714f6e62063499dc959a02595150a1 # v2.21.1
@@ -117,7 +72,6 @@ jobs:
          egress-policy: audit

      - name: Install Valgrind
-        if: matrix.target == 'ci_test_valgrind'
        run: sudo apt-get update ; sudo apt-get install -y valgrind
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
@@ -153,7 +107,7 @@ jobs:
    container: ubuntu:24.04
    strategy:
      matrix:
-        target: [ci_cmake_flags, ci_test_diagnostics, ci_test_diagnostic_positions, ci_test_noexceptions, ci_test_noimplicitconversions, ci_test_legacycomparison, ci_test_noglobaludls, ci_test_disableenumserialization, ci_test_disabletuplereferenceconversion, ci_test_skiplibraryversioncheck, ci_test_simdutf, ci_test_strict_nul_handling, ci_test_delete_deprecated_functions, ci_test_no_thread_local]
+        target: [ci_cmake_flags, ci_test_diagnostics, ci_test_diagnostic_positions, ci_test_noexceptions, ci_test_noimplicitconversions, ci_test_legacycomparison, ci_test_noglobaludls, ci_test_disableenumserialization, ci_test_disabletuplereferenceconversion, ci_test_skiplibraryversioncheck, ci_test_simdutf, ci_test_strict_nul_handling, ci_test_no_thread_local]
    steps:
      - name: Install build-essential
        run: apt-get update ; apt-get install -y build-essential unzip wget git
@@ -255,7 +209,7 @@ jobs:
    strategy:
      matrix:
        # older GCC docker images (4, 5, 6) fail to check out code
-        compiler: ['7', '8', '9', '10', '11', '12', '13', '14', '15', '16', 'latest']
+        compiler: ['7', '8', '9', '10', '11', '12', '13', '14', '15', 'latest']
    container: gcc:${{ matrix.compiler }}
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -280,7 +234,7 @@ jobs:
          persist-credentials: false
      - name: Get latest CMake and ninja
        uses: lukka/get-cmake@fffaaafeea488556c2c12dad60690008bc1caacb # v4.4.2
-      - name: Disable filesystem support (std::filesystem is unusable) for clang 7 / 8 / 9 / 10
+      - name: Set env FORCE_STDCPPFS_FLAG for clang 7 / 8 / 9 / 10
        run: echo "JSON_FORCED_GLOBAL_COMPILE_OPTIONS=-DJSON_HAS_FILESYSTEM=0;-DJSON_HAS_EXPERIMENTAL_FILESYSTEM=0" >> "$GITHUB_ENV"
        if: ${{ matrix.compiler == '7' || matrix.compiler == '8' || matrix.compiler == '9' || matrix.compiler == '10' }}
      - name: Run CMake
@@ -166,13 +166,6 @@ jobs:
      # link, but the binaries clang 11.0.1 and clang 18.1.8 then produce crash
      # before doctest prints its first line - 39 of 102 tests on clang 18.
      # Keep the objects small by splitting the test files instead.
-      # Objects with more than 65535 sections fail to link with "relocation
-      # truncated to fit: IMAGE_REL_AMD64_REL32 against `.rdata'": the MinGW
-      # linker stores the section an associative COMDAT section belongs to in
-      # 16 bits (x_associated in binutils' include/coff/internal.h), so it
-      # discards the jump tables of inline functions together with the wrong
-      # function. Each basic_json specialization a test file instantiates adds
-      # many sections, so test a second one in a file of its own.
      - name: Run CMake
        run: cmake -S . -B build ^
             -DCMAKE_CXX_COMPILER="C:/Program Files/LLVM/bin/clang++.exe" ^
@@ -185,9 +178,9 @@ jobs:
      - name: Build
        run: cmake --build build --parallel 10
      - name: Test
-        run: cd build ; ctest -j 10 -C Debug --output-on-failure
+        run: cd build ; ctest -j 10 -C Debug --exclude-regex "test-unicode" --output-on-failure

-  clang-cl:
+  clang-cl-12:
    runs-on: windows-2022
    strategy:
      matrix:
@@ -202,7 +195,7 @@ jobs:
      - name: Build
        run: cmake --build build --config Debug --parallel 10
      - name: Test
-        run: cd build ; ctest -j 10 -C Debug --output-on-failure
+        run: cd build ; ctest -j 10 -C Debug --exclude-regex "test-unicode" --output-on-failure

  ci_module_cpp20:
    runs-on: windows-2022
@@ -217,10 +210,8 @@ jobs:
        uses: lukka/get-cmake@fffaaafeea488556c2c12dad60690008bc1caacb # v4.4.2
        with:
          cmakeVersion: 4.3.4
-      # CMAKE_CXX_FLAGS replaces CMake's MSVC defaults (which include /EHsc), and
-      # ci_module_cpp20 forwards it to the module build, so list /EHsc explicitly
      - name: Run CMake (Debug)
-        run: cmake -S . -B build -G "Visual Studio 17 2022" -DJSON_CI=ON -DCMAKE_CXX_FLAGS="/permissive- /std:c++latest /utf-8 /EHsc /W4 /WX"
+        run: cmake -S . -B build -G "Visual Studio 17 2022" -DJSON_CI=ON -DCMAKE_CXX_FLAGS="/permissive- /std:c++latest /utf-8 /W4 /WX"
      - name: Build
        run: cmake --build build --config Debug --target ci_module_cpp20
        
@@ -27,6 +27,7 @@
 /docs/docset/JSON_for_Modern_C++.tgz
 /docs/docset/docSet.dsidx
 /docs/mkdocs/.cache/
+/docs/mkdocs/docs/__pycache__/
 /docs/mkdocs/hooks/__pycache__/
 /docs/mkdocs/scripts/mermaid/node_modules/
 /docs/mkdocs/site/
@@ -46,17 +47,3 @@ nlohmann_json.spdx

 # Bazel-related
 MODULE.bazel.lock
-
-# backups left by `make check-amalgamation` or the ci_test_amalgamation target if they are interrupted
-/BUILD.bazel~
-/nlohmann_json.natvis~
-/single_include/nlohmann/*.hpp~
-/venv_astyle/
-
-# release outputs of `make release`
-/include.zip
-/include.zip.asc
-/json.tar.xz
-/json.tar.xz.asc
-/release_files/
-/single_include/nlohmann/*.asc
@@ -1,7 +1,5 @@
 {
  "_comment": "Used by the ci_infer CMake target (#5715 item 4b). fail-on-issue makes CI fail on Infer findings; disable-issue-type is a type-level baseline for the ~174 pre-existing findings (all PULSE_UNNECESSARY_COPY*/PULSE_RESOURCE_LEAK/PULSE_CONST_REFABLE, mostly in test code) triaged in run https://github.com/nlohmann/json/actions/runs/35829411620 on commit 1054b2097, so CI fails only on a NEW issue type. Remove an entry here once its findings have been fixed or explicitly accepted.",
-  "_comment_pulse": "Pulse stops exploring paths after pulse-max-disjuncts (default 20). With the default, basic_json::replace_value() (destroy + assert_invariant) exceeds the limit, Pulse loses the stored type, and reports false NULLPTR_DEREFERENCE findings for get_ptr() results in tests/src/unit-pointer_access.cpp.",
-  "pulse-max-disjuncts": 40,
  "fail-on-issue": true,
  "disable-issue-type": [
    "PULSE_UNNECESSARY_COPY_ASSIGNMENT",
@@ -0,0 +1,36 @@
+Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: json
+Upstream-Contact: Niels Lohmann <mail@nlohmann.me>
+Source: https://github.com/nlohmann/json
+
+Files: *
+Copyright: 2013-2026 Niels Lohmann <https://nlohmann.me>
+License: MIT
+
+Files: include/nlohmann/thirdparty/hedley.hpp
+Copyright: 2016-2021 Evan Nemerson <evan@nemerson.com>
+License: CC0
+
+Files: include/nlohmann/detail/meta/cpp_future.hpp
+Copyright: 2013-2026 Niels Lohmann <https://nlohmann.me> and 2018 The Abseil Authors
+License: MIT AND Apache-2.0
+
+Files: tests/thirdparty/doctest/*
+Copyright: 2016-2023 Viktor Kirilov
+License: MIT
+
+Files: tests/thirdparty/fifo_map/*
+Copyright: 2015-2017 Niels Lohmann
+License: MIT
+
+Files: tests/thirdparty/imapdl/*
+Copyright: 2017 Georg Sauthoff <mail@gms.tf>
+License: GPL-3.0-only
+
+Files: tools/amalgamate/*
+Copyright: 2012 Erik Edlund <erik.edlund@32767.se>
+License: BSD-3-Clause
+
+Files: tools/gdb_pretty_printer/*
+Copyright: 2020 Hannes Domani <https://github.com/ssbssa>
+License: MIT
@@ -20,11 +20,13 @@ cc_library(
    hdrs = [
        "include/nlohmann/adl_serializer.hpp",
        "include/nlohmann/byte_container_with_subtype.hpp",
+        "include/nlohmann/detail/abi_config.hpp",
        "include/nlohmann/detail/abi_macros.hpp",
        "include/nlohmann/detail/bit_ops.hpp",
        "include/nlohmann/detail/conversions/from_json.hpp",
        "include/nlohmann/detail/conversions/to_chars.hpp",
        "include/nlohmann/detail/conversions/to_json.hpp",
+        "include/nlohmann/detail/conversions/zmij.hpp",
        "include/nlohmann/detail/exceptions.hpp",
        "include/nlohmann/detail/hash.hpp",
        "include/nlohmann/detail/input/binary_reader.hpp",
@@ -65,9 +67,32 @@ cc_library(
        "include/nlohmann/detail/string_escape.hpp",
        "include/nlohmann/detail/string_utils.hpp",
        "include/nlohmann/detail/value_t.hpp",
+        "include/nlohmann/detail/view/builder.hpp",
+        "include/nlohmann/detail/view/compare.hpp",
+        "include/nlohmann/detail/view/document_data.hpp",
+        "include/nlohmann/detail/view/edit.hpp",
+        "include/nlohmann/detail/view/edit_storage.hpp",
+        "include/nlohmann/detail/view/errors.hpp",
+        "include/nlohmann/detail/view/image.hpp",
+        "include/nlohmann/detail/view/input.hpp",
+        "include/nlohmann/detail/view/iterator.hpp",
+        "include/nlohmann/detail/view/lookup.hpp",
+        "include/nlohmann/detail/view/macro_scope.hpp",
+        "include/nlohmann/detail/view/macro_unscope.hpp",
+        "include/nlohmann/detail/view/materialize.hpp",
+        "include/nlohmann/detail/view/node.hpp",
+        "include/nlohmann/detail/view/number.hpp",
+        "include/nlohmann/detail/view/object_index.hpp",
+        "include/nlohmann/detail/view/pointer.hpp",
+        "include/nlohmann/detail/view/scan.hpp",
+        "include/nlohmann/detail/view/serializer.hpp",
+        "include/nlohmann/detail/view/simd.hpp",
+        "include/nlohmann/detail/view/string_ref.hpp",
+        "include/nlohmann/detail/view/value.hpp",
        "include/nlohmann/json.hpp",
        "include/nlohmann/json_fwd.hpp",
        "include/nlohmann/json_literals.hpp",
+        "include/nlohmann/json_view.hpp",
        "include/nlohmann/ordered_map.hpp",
        "include/nlohmann/thirdparty/hedley/hedley.hpp",
        "include/nlohmann/thirdparty/hedley/hedley_undef.hpp",
@@ -80,8 +105,7 @@ cc_library(
    name = "singleheader-json",
    hdrs = [
        "single_include/nlohmann/json.hpp",
-        "single_include/nlohmann/json_fwd.hpp",
-        "single_include/nlohmann/json_literals.hpp",
+        "single_include/nlohmann/json_view.hpp",
    ],
    includes = ["single_include"],
    visibility = ["//visibility:public"],
@@ -8,7 +8,7 @@ authors:
    website: https://nlohmann.me
 title: "JSON for Modern C++"
 version: 3.12.0
-date-released: 2025-04-11
+date-released: 2025-04-07
 license: MIT
-repository-code: "https://github.com/nlohmann/json"
+repository-code: "https://github.com/nlohmann"
 url: https://json.nlohmann.me
@@ -30,7 +30,7 @@ endif ()
 option(NLOHMANN_JSON_BUILD_MODULES "Build C++ modules support" OFF)

 if(NLOHMANN_JSON_BUILD_MODULES)
-    if(NOT CMAKE_VERSION VERSION_LESS 3.28)
+    if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.28)
        message(STATUS "Building nlohmann.json C++ module")
        add_subdirectory(src/modules)
    else()
@@ -42,11 +42,8 @@ endif()
 ## OPTIONS
 ##

-# Build the tests by default only for the main project and only if the tests
-# directory exists (the release archive json.tar.xz does not contain it).
 # VERSION_GREATER_EQUAL is not available in older CMake (< 3.7)
-if(${MAIN_PROJECT} AND (${CMAKE_VERSION} VERSION_EQUAL 3.13 OR ${CMAKE_VERSION} VERSION_GREATER 3.13)
-   AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tests/CMakeLists.txt")
+if(${MAIN_PROJECT} AND (${CMAKE_VERSION} VERSION_EQUAL 3.13 OR ${CMAKE_VERSION} VERSION_GREATER 3.13))
    set(JSON_BuildTests_INIT ON)
 else()
    set(JSON_BuildTests_INIT OFF)
@@ -65,7 +62,6 @@ option(JSON_MultipleHeaders                "Use non-amalgamated version of the l
 option(JSON_SystemInclude                  "Include as system headers (skip for clang-tidy)." OFF)
 option(JSON_StrictNulHandling              "Build with strict NUL-byte handling enabled." OFF)
 option(JSON_StrictBinaryUTF8               "Build with UTF-8 checks in the CBOR, UBJSON, BJData, and BSON writers enabled." OFF)
-option(JSON_DeleteDeprecatedFunctions      "Delete the deprecated functions instead of only deprecating them." OFF)

 if (JSON_CI)
    include(ci)
@@ -127,10 +123,6 @@ if (JSON_StrictBinaryUTF8)
    message(STATUS "Strict UTF-8 checks in binary writers enabled (JSON_STRICT_BINARY_UTF8=1)")
 endif()

-if (JSON_DeleteDeprecatedFunctions)
-    message(STATUS "Deprecated functions are deleted (JSON_DELETE_DEPRECATED_FUNCTIONS=1)")
-endif()
-
 if (JSON_Diagnostic_Positions)
    message(STATUS "Diagnostic positions enabled (JSON_DIAGNOSTIC_POSITIONS=1)")
 endif()
@@ -167,7 +159,6 @@ target_compile_definitions(
    $<$<BOOL:${JSON_LegacyDiscardedValueComparison}>:JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON=1>
    $<$<BOOL:${JSON_StrictNulHandling}>:JSON_STRICT_NUL_HANDLING=1>
    $<$<BOOL:${JSON_StrictBinaryUTF8}>:JSON_STRICT_BINARY_UTF8=1>
-    $<$<BOOL:${JSON_DeleteDeprecatedFunctions}>:JSON_DELETE_DEPRECATED_FUNCTIONS=1>
 )

 target_include_directories(
@@ -189,39 +180,7 @@ if (MSVC)
    )
 endif()

-# Install a pkg-config file, so other tools can find this. It carries the same
-# compile definitions as the target above.
-set(NLOHMANN_JSON_PKGCONFIG_CFLAGS "")
-if (NOT JSON_GlobalUDLs)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_USE_GLOBAL_UDLS=0")
-endif()
-if (NOT JSON_ImplicitConversions)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_USE_IMPLICIT_CONVERSIONS=0")
-endif()
-if (JSON_DisableEnumSerialization)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_DISABLE_ENUM_SERIALIZATION=1")
-endif()
-if (JSON_DisableTupleReferenceConversion)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_DISABLE_TUPLE_REFERENCE_CONVERSION=1")
-endif()
-if (JSON_Diagnostics)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_DIAGNOSTICS=1")
-endif()
-if (JSON_Diagnostic_Positions)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_DIAGNOSTIC_POSITIONS=1")
-endif()
-if (JSON_LegacyDiscardedValueComparison)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON=1")
-endif()
-if (JSON_StrictNulHandling)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_STRICT_NUL_HANDLING=1")
-endif()
-if (JSON_StrictBinaryUTF8)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_STRICT_BINARY_UTF8=1")
-endif()
-if (JSON_DeleteDeprecatedFunctions)
-    string(APPEND NLOHMANN_JSON_PKGCONFIG_CFLAGS " -DJSON_DELETE_DEPRECATED_FUNCTIONS=1")
-endif()
+# Install a pkg-config file, so other tools can find this.
 configure_file(
    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/pkg-config.pc.in"
    "${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc"
@@ -14,7 +14,7 @@ This file describes the source for supporting files; that is, files that are not
 The [GitHub Actions](https://docs.github.com/en/actions) workflows that build, test, and analyze the library. Each file in this folder defines one workflow:

 - `ubuntu.yml`, `macos.yml`, `windows.yml` — build and run the test suite on Linux, macOS, and Windows.
- `check_amalgamation.yml` — verify on pull requests and pushes to `develop` that the generated files (the single-header amalgamation in `single_include`, `BUILD.bazel`, and `nlohmann_json.natvis`) are up to date.
+- `check_amalgamation.yml` — verify that the single-header amalgamation in `single_include` is up to date on pull requests.
 - `comment_check_amalgamation.yml` — comment on a pull request when the amalgamation check failed.
 - `cifuzz.yml` — run short fuzzing sessions via [OSS-Fuzz CIFuzz](https://google.github.io/oss-fuzz/getting-started/continuous-integration/) on pull requests.
 - `codeql-analysis.yml` — run [CodeQL](https://codeql.github.com) code scanning.
@@ -24,9 +24,7 @@ The [GitHub Actions](https://docs.github.com/en/actions) workflows that build, t
 - `dependency-review.yml` — scan dependency changes in pull requests for known vulnerabilities.
 - `labeler.yml` — the "Pull Request Labeler" workflow (see `.github/labeler.yml`).
 - `stale.yml` — comment on and close stale issues and pull requests.
- `publish_documentation.yml` — build and publish the documentation on pushes to the `develop` branch that touch the documentation sources (or the files it embeds).
- `check_docs_links.yml` — check the links of the documentation weekly, as external links can break without any change in this repository.
- `cancel_closed_pr_runs.yml` — cancel unfinished workflow runs of a pull request once it is closed or merged.
+- `publish_documentation.yml` — build and publish the documentation on every merge to the `develop` branch.

 Further documentation:

@@ -198,19 +196,19 @@ Further documentation:

 ## REUSE

-### `REUSE.toml`
+### `.reuse/dep5`

 The file defines the licenses of certain third-party components in the repository. The root `Makefile` contains a target `reuse` that checks for compliance.

 Further documentation:

- [REUSE.toml](https://reuse.software/spec-3.3/#reusetoml)
+- [DEP5](https://reuse.software/spec-3.2/#dep5-deprecated)
 - [reuse command-line tool](https://pypi.org/project/reuse/)
 - [documentation of linting](https://reuse.readthedocs.io/en/stable/man/reuse-lint.html)
 - [REUSE](http://reuse.software)

 > [!IMPORTANT]
-> The filename `REUSE.toml` is predetermined by REUSE. Alternatively, a `.reuse/dep5` file (deprecated) can be used.
+> The filename `.reuse/dep5` is predetermined by REUSE. Alternatively, a `REUSE.toml` file can be used.

 ### `.reuse/templates`

@@ -251,32 +249,9 @@ make BUILD.bazel

 The "Check amalgamation" workflow fails if the file is out of date.

-### `meson.build` and `meson_options.txt`
+### `meson.build`

-Meson build definitions suitable for use as a subproject ("wrap" in Meson terminology).
-
-Projects wishing to use the wrap can execute:
-```sh
-meson wrap install nlohmann_json
-```
-
-Which allows Meson to build from source when a system provided dependency isn't available.
-
-To build directly:
-```sh
-meson setup builddir
-ninja -C builddir
-```
-
-`meson_options.txt` defines the options, which mirror the names of the CMake options that change the library's target (for example,
-`-DDiagnostics=true`); their defaults may differ (for example, `MultipleHeaders` defaults to `false` in Meson, while
-`JSON_MultipleHeaders` is `ON` in CMake). Meson requires this file next to `meson.build`, so it is also part of `include.zip`. `make check_build_options`
-([`tools/check_build_options`](tools/check_build_options/README.md)) checks in CI that both files and the pkg-config files
-stay in sync with the CMake options.
-
-When installing, `meson.build` installs the headers, a pkg-config file, and the CMake package config files, so that
-`find_package(nlohmann_json)` works. As Meson cannot generate `nlohmann_jsonTargets.cmake` itself, it is created from
-the template `cmake/nlohmann_jsonTargets.cmake.in`, which is only used by Meson.
+The build definition for the [Meson](https://mesonbuild.com) build system.

 ### `Package.swift`

@@ -1,6 +1,5 @@
 module(
    name = "nlohmann_json",
-    version = "3.12.0",
    compatibility_level = 1,
 )

@@ -1,4 +1,4 @@
-.PHONY: all amalgamate check-amalgamation check_build_options pretty install_astyle clean ChangeLog.md release update_hedley update_hedley_undef BUILD.bazel natvis macro_builder_check run_benchmarks pvs_studio serve_header reuse spdx
+.PHONY: pretty clean ChangeLog.md release update_hedley update_hedley_undef BUILD.bazel natvis macro_builder_check

 ##########################################################################
 # configuration
@@ -7,9 +7,6 @@
 # find GNU sed to use `-i` parameter
 SED:=$(shell command -v gsed || which sed)

-# find GNU tar to use `--sort` and `--pax-option` parameters
-TAR:=$(shell command -v gtar || which tar)
-

 ##########################################################################
 # source files
@@ -26,6 +23,7 @@ AMALGAMATED_FILE=single_include/nlohmann/json.hpp
 AMALGAMATED_FWD_FILE=single_include/nlohmann/json_fwd.hpp
 # json_literals.hpp only includes <nlohmann/json.hpp>, so it is copied verbatim
 AMALGAMATED_LITERALS_FILE=single_include/nlohmann/json_literals.hpp
+AMALGAMATED_VIEW_FILE=single_include/nlohmann/json_view.hpp

 # the header with the argument-counting macros generated by tools/macro_builder
 MACRO_SCOPE_HPP=include/nlohmann/detail/macro_scope.hpp
@@ -37,22 +35,16 @@ MACRO_SCOPE_HPP=include/nlohmann/detail/macro_scope.hpp

 # main target
 all:
-	@echo "amalgamate - amalgamate files single_include/nlohmann/json{,_fwd,_literals}.hpp from the include/nlohmann sources"
+	@echo "amalgamate - amalgamate files single_include/nlohmann/json{,_fwd,_literals,_view}.hpp from the include/nlohmann sources"
 	@echo "BUILD.bazel - regenerate the Bazel BUILD file from the include/nlohmann sources"
 	@echo "ChangeLog.md - generate ChangeLog file"
 	@echo "check-amalgamation - check whether sources have been amalgamated and BUILD.bazel is up to date"
-	@echo "check_build_options - check that the Meson build and the pkg-config files offer the options of the CMake target"
 	@echo "clean - remove built files"
-	@echo "(fuzzers) - see tests/fuzzing.md, or run 'make -C tests fuzzers' to build the AFL fuzzers"
+	@echo "fuzzing - see tests/fuzzing.md for how to build and run the fuzzers"
 	@echo "macro_builder_check - check that macro_scope.hpp matches tools/macro_builder's output"
 	@echo "natvis - regenerate nlohmann_json.natvis from the current ABI tags and version"
 	@echo "pretty - beautify code with Artistic Style"
-	@echo "pvs_studio - run the PVS-Studio static analyzer and open the report"
-	@echo "release - create the release files (include.zip, json.tar.xz, single headers, signatures, hashes)"
-	@echo "reuse - annotate the source files with REUSE license headers and lint them"
 	@echo "run_benchmarks - build and run benchmarks"
-	@echo "serve_header - serve the single header, re-amalgamated on demand (see tools/serve_header)"
-	@echo "spdx - generate the SPDX software bill of materials nlohmann_json.spdx"
 	@echo "update_hedley - download Hedley and regenerate hedley.hpp / hedley_undef.hpp"
 	@echo "update_hedley_undef - rebuild hedley_undef.hpp from the JSON_HEDLEY_* #define names in hedley.hpp"

@@ -96,10 +88,10 @@ install_astyle:

 # call the Artistic Style pretty printer on all source files
 pretty: install_astyle
-	$(ASTYLE) --project=tools/astyle/.astylerc $(SRCS) $(TESTS_SRCS) $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE) docs/mkdocs/docs/examples/*.cpp docs/mkdocs/docs/examples/*.hpp
+	$(ASTYLE) --project=tools/astyle/.astylerc $(SRCS) $(TESTS_SRCS) $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE) $(AMALGAMATED_VIEW_FILE) docs/mkdocs/docs/examples/*.cpp docs/mkdocs/docs/examples/*.hpp

 # create single header files and pretty print
-amalgamate: $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE)
+amalgamate: $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE) $(AMALGAMATED_VIEW_FILE)
 	$(MAKE) pretty

 # call the amalgamation tool for json.hpp
@@ -114,18 +106,16 @@ $(AMALGAMATED_FWD_FILE): $(SRCS)
 $(AMALGAMATED_LITERALS_FILE): include/nlohmann/json_literals.hpp
 	cp include/nlohmann/json_literals.hpp $(AMALGAMATED_LITERALS_FILE)

-NATVIS_VENV=tools/generate_natvis/venv
-
+# call the amalgamation tool for json_view.hpp (keeps including json.hpp)
+$(AMALGAMATED_VIEW_FILE): $(SRCS)
+	tools/amalgamate/amalgamate.py -c tools/amalgamate/config_json_view.json -s . --verbose=yes
 # regenerate nlohmann_json.natvis from the ABI tags and version in include/nlohmann/detail/abi_macros.hpp
-# (the dependencies are installed into a virtual environment first)
 natvis:
-	@test -d $(NATVIS_VENV) || python3 -mvenv $(NATVIS_VENV)
-	@$(NATVIS_VENV)/bin/python3 -c 'import jinja2' 2>/dev/null || $(NATVIS_VENV)/bin/pip3 install --quiet -r tools/generate_natvis/requirements.txt
-	$(NATVIS_VENV)/bin/python3 tools/generate_natvis/generate_natvis.py .
+	python3 tools/generate_natvis/generate_natvis.py .

 # regenerate the two tools/macro_builder blocks of $(MACRO_SCOPE_HPP) (see its README.md) and diff against the
 # checked-in header; phony, because it never writes $(MACRO_SCOPE_HPP) itself
-macro_builder_check: install_astyle
+macro_builder_check:
 	@set -e; \
 	TMPDIR=$$(mktemp -d ./macro_builder_check.XXXXXX); \
 	trap 'rm -rf "$$TMPDIR"' EXIT; \
@@ -138,31 +128,30 @@ macro_builder_check: install_astyle
 	diff "$$TMPDIR/paste.hpp" "$$TMPDIR/paste_actual.hpp" || (echo "===================================================================\n  $(MACRO_SCOPE_HPP) (NLOHMANN_JSON_EXPAND..NLOHMANN_JSON_DOUBLE_PASTE63) is out of date!\n  Regenerate it, see tools/macro_builder/README.md.\n===================================================================" ; exit 1); \
 	diff "$$TMPDIR/type_body.hpp" "$$TMPDIR/type_body_actual.hpp" || (echo "===================================================================\n  $(MACRO_SCOPE_HPP) (NLOHMANN_JSON_TYPE_BODY) is out of date!\n  Regenerate it, see tools/macro_builder/README.md.\n===================================================================" ; exit 1)

-# check that the Meson build and the pkg-config files offer the options of the CMake target
-check_build_options:
-	python3 tools/check_build_options/check_build_options.py .
-
-# check if the single headers have been amalgamated from the nlohmann sources and if BUILD.bazel and
-# nlohmann_json.natvis are up to date; all checks are run, and the checked-in files are always restored
+# check if file single_include/nlohmann/json.hpp has been amalgamated from the nlohmann sources
 check-amalgamation:
-	@status=0; \
-	banner() { printf '===================================================================\n  %s\n===================================================================\n' "$$1"; }; \
-	for FILE in $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE) BUILD.bazel nlohmann_json.natvis; do \
-	    mv "$$FILE" "$$FILE~" || exit 1; \
-	done; \
-	$(MAKE) amalgamate || status=1; \
-	$(MAKE) BUILD.bazel || status=1; \
-	$(MAKE) natvis || status=1; \
-	for FILE in $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE); do \
-	    diff "$$FILE" "$$FILE~" || { banner "$$FILE is out of date! Amalgamation required! Please read the contribution guidelines in file .github/CONTRIBUTING.md."; status=1; }; \
-	done; \
-	diff BUILD.bazel BUILD.bazel~ || { banner "BUILD.bazel is out of date! Please run 'make BUILD.bazel'."; status=1; }; \
-	diff nlohmann_json.natvis nlohmann_json.natvis~ || { banner "nlohmann_json.natvis is out of date! Please run 'make natvis'."; status=1; }; \
-	for FILE in $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE) BUILD.bazel nlohmann_json.natvis; do \
-	    mv "$$FILE~" "$$FILE"; \
-	done; \
-	$(MAKE) macro_builder_check || status=1; \
-	exit $$status
+	@mv $(AMALGAMATED_FILE) $(AMALGAMATED_FILE)~
+	@mv $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_FWD_FILE)~
+	@mv $(AMALGAMATED_LITERALS_FILE) $(AMALGAMATED_LITERALS_FILE)~
+	@mv $(AMALGAMATED_VIEW_FILE) $(AMALGAMATED_VIEW_FILE)~
+	@$(MAKE) amalgamate
+	@diff $(AMALGAMATED_FILE) $(AMALGAMATED_FILE)~ || (echo "===================================================================\n  Amalgamation required! Please read the contribution guidelines\n  in file .github/CONTRIBUTING.md.\n===================================================================" ; mv $(AMALGAMATED_FILE)~ $(AMALGAMATED_FILE) ; false)
+	@diff $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_FWD_FILE)~ || (echo "===================================================================\n  Amalgamation required! Please read the contribution guidelines\n  in file .github/CONTRIBUTING.md.\n===================================================================" ; mv $(AMALGAMATED_FWD_FILE)~ $(AMALGAMATED_FWD_FILE) ; false)
+	@diff $(AMALGAMATED_LITERALS_FILE) $(AMALGAMATED_LITERALS_FILE)~ || (echo "===================================================================\n  Amalgamation required! Please read the contribution guidelines\n  in file .github/CONTRIBUTING.md.\n===================================================================" ; mv $(AMALGAMATED_LITERALS_FILE)~ $(AMALGAMATED_LITERALS_FILE) ; false)
+	@diff $(AMALGAMATED_VIEW_FILE) $(AMALGAMATED_VIEW_FILE)~ || (echo "===================================================================\n  Amalgamation required! Please read the contribution guidelines\n  in file .github/CONTRIBUTING.md.\n===================================================================" ; mv $(AMALGAMATED_VIEW_FILE)~ $(AMALGAMATED_VIEW_FILE) ; false)
+	@mv $(AMALGAMATED_FILE)~ $(AMALGAMATED_FILE)
+	@mv $(AMALGAMATED_FWD_FILE)~ $(AMALGAMATED_FWD_FILE)
+	@mv $(AMALGAMATED_LITERALS_FILE)~ $(AMALGAMATED_LITERALS_FILE)
+	@mv $(AMALGAMATED_VIEW_FILE)~ $(AMALGAMATED_VIEW_FILE)
+	@mv BUILD.bazel BUILD.bazel~
+	@$(MAKE) BUILD.bazel
+	@diff BUILD.bazel BUILD.bazel~ || (echo "===================================================================\n  BUILD.bazel is out of date! Please run 'make BUILD.bazel'.\n===================================================================" ; mv BUILD.bazel~ BUILD.bazel ; false)
+	@mv BUILD.bazel~ BUILD.bazel
+	@mv nlohmann_json.natvis nlohmann_json.natvis~
+	@$(MAKE) natvis
+	@diff nlohmann_json.natvis nlohmann_json.natvis~ || (echo "===================================================================\n  nlohmann_json.natvis is out of date! Please run 'make natvis'.\n===================================================================" ; mv nlohmann_json.natvis~ nlohmann_json.natvis ; false)
+	@mv nlohmann_json.natvis~ nlohmann_json.natvis
+	@$(MAKE) macro_builder_check

 # generate the Bazel BUILD file; phony, because a removed header would not trigger a rebuild
 BUILD.bazel:
@@ -192,14 +181,14 @@ ChangeLog.md:
 # archive is created according to the advices of <https://reproducible-builds.org/docs/archives/>.
 json.tar.xz:
 	mkdir json
-	rsync -R $(shell find LICENSE.MIT nlohmann_json.natvis CMakeLists.txt cmake/*.in include single_include src/modules -type f) json
-	$(TAR) --sort=name --mtime="@$(shell git log -1 --pretty=%ct)" --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime --create --file - json | xz --compress -9e --threads=2 - > json.tar.xz
+	rsync -R $(shell find LICENSE.MIT nlohmann_json.natvis CMakeLists.txt cmake/*.in include single_include -type f) json
+	gtar --sort=name --mtime="@$(shell git log -1 --pretty=%ct)" --owner=0 --group=0 --numeric-owner --pax-option=exthdr.name=%d/PaxHeaders/%f,delete=atime,delete=ctime --create --file - json | xz --compress -9e --threads=2 - > json.tar.xz
 	rm -fr json

 # We use `-X` to make the resulting ZIP file reproducible, see
 # <https://content.pivotal.io/blog/barriers-to-deterministic-reproducible-zip-files>.
 include.zip: BUILD.bazel
-	zip -9 --recurse-paths -X include.zip $(SRCS) $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE) BUILD.bazel MODULE.bazel meson.build meson_options.txt LICENSE.MIT
+	zip -9 --recurse-paths -X include.zip $(SRCS) $(AMALGAMATED_FILE) $(AMALGAMATED_FWD_FILE) $(AMALGAMATED_LITERALS_FILE) $(AMALGAMATED_VIEW_FILE) BUILD.bazel MODULE.bazel meson.build LICENSE.MIT

 # Create the files for a release and add signatures and hashes.
 release: include.zip json.tar.xz
@@ -209,11 +198,13 @@ release: include.zip json.tar.xz
 	gpg --armor --detach-sig $(AMALGAMATED_FILE)
 	gpg --armor --detach-sig $(AMALGAMATED_FWD_FILE)
 	gpg --armor --detach-sig $(AMALGAMATED_LITERALS_FILE)
+	gpg --armor --detach-sig $(AMALGAMATED_VIEW_FILE)
 	gpg --armor --detach-sig json.tar.xz
 	cp $(AMALGAMATED_FILE) release_files
 	cp $(AMALGAMATED_FWD_FILE) release_files
 	cp $(AMALGAMATED_LITERALS_FILE) release_files
-	mv $(AMALGAMATED_FILE).asc $(AMALGAMATED_FWD_FILE).asc $(AMALGAMATED_LITERALS_FILE).asc json.tar.xz json.tar.xz.asc include.zip include.zip.asc release_files
+	cp $(AMALGAMATED_VIEW_FILE) release_files
+	mv $(AMALGAMATED_FILE).asc $(AMALGAMATED_FWD_FILE).asc $(AMALGAMATED_LITERALS_FILE).asc $(AMALGAMATED_VIEW_FILE).asc json.tar.xz json.tar.xz.asc include.zip include.zip.asc release_files
 	cd release_files ; shasum -a 256 $$(find . -type f -not -name '*.asc' | sed 's|^\./||' | sort) > hashes.txt


@@ -223,8 +214,8 @@ release: include.zip json.tar.xz

 # clean up
 clean:
-	rm -fr *.dSYM tests/*.dSYM tests/parse_*_fuzzer
-	rm -fr cmake-build-benchmarks cmake-build-pvs-studio release_files
+	rm -fr fuzz fuzz-testing *.dSYM tests/*.dSYM
+	rm -fr cmake-build-benchmarks fuzz-testing cmake-build-pvs-studio release_files
 	$(MAKE) clean -Cdocs


@@ -6,7 +6,7 @@ import PackageDescription
 let package = Package(
    name: "nlohmann-json",
     platforms: [
-        .iOS(.v12), .macOS(.v10_13), .tvOS(.v12), .watchOS(.v9), .visionOS(.v1)
+        .iOS(.v12), .macOS(.v10_13), .tvOS(.v12), .watchOS(.v4), .visionOS(.v1)
    ],
    products: [
        .library(name: "json", targets: ["json"])
@@ -1,58 +0,0 @@
-version = 1
-SPDX-PackageName = "json"
-SPDX-PackageSupplier = "Niels Lohmann <mail@nlohmann.me>"
-SPDX-PackageDownloadLocation = "https://github.com/nlohmann/json"
-
-[[annotations]]
-path = "**"
-precedence = "aggregate"
-SPDX-FileCopyrightText = "2013-2026 Niels Lohmann <https://nlohmann.me>"
-SPDX-License-Identifier = "MIT"
-
-[[annotations]]
-path = "include/nlohmann/thirdparty/hedley/hedley.hpp"
-precedence = "aggregate"
-SPDX-FileCopyrightText = "2016-2021 Evan Nemerson <evan@nemerson.com>"
-SPDX-License-Identifier = "CC0-1.0"
-
-[[annotations]]
-path = "include/nlohmann/detail/meta/cpp_future.hpp"
-precedence = "aggregate"
-SPDX-FileCopyrightText = "2013-2026 Niels Lohmann <https://nlohmann.me> and 2018 The Abseil Authors"
-SPDX-License-Identifier = "MIT AND Apache-2.0"
-
-[[annotations]]
-path = "tests/thirdparty/doctest/**"
-precedence = "aggregate"
-SPDX-FileCopyrightText = "2016-2023 Viktor Kirilov"
-SPDX-License-Identifier = "MIT"
-
-[[annotations]]
-path = "tests/thirdparty/fifo_map/**"
-precedence = "aggregate"
-SPDX-FileCopyrightText = "2015-2017 Niels Lohmann"
-SPDX-License-Identifier = "MIT"
-
-[[annotations]]
-path = "tests/thirdparty/imapdl/**"
-precedence = "aggregate"
-SPDX-FileCopyrightText = "2017 Georg Sauthoff <mail@gms.tf>"
-SPDX-License-Identifier = "GPL-3.0-only"
-
-[[annotations]]
-path = "tools/amalgamate/**"
-precedence = "aggregate"
-SPDX-FileCopyrightText = "2012 Erik Edlund <erik.edlund@32767.se>"
-SPDX-License-Identifier = "BSD-3-Clause"
-
-[[annotations]]
-path = "tools/gdb_pretty_printer/**"
-precedence = "aggregate"
-SPDX-FileCopyrightText = "2020 Hannes Domani <https://github.com/ssbssa>"
-SPDX-License-Identifier = "MIT"
-
-[[annotations]]
-path = "docs/docset/icon*.png"
-precedence = "override"
-SPDX-FileCopyrightText = "JSON logo (public domain), https://commons.wikimedia.org/wiki/File:JSON_vector_logo.svg"
-SPDX-License-Identifier = "CC0-1.0"
@@ -5,14 +5,15 @@ set(N 10)
 # Needed tools.
 ###############################################################################

+include(FindPython3)
 find_package(Python3 COMPONENTS Interpreter)

-find_program(CLANG_TOOL NAMES clang++ clang++-HEAD clang++-22 clang++-21 clang++-20 clang++-19 clang++-18 clang++-17 clang++-16 clang++-15 clang++-14 clang++-13 clang++-12 clang++-11)
+find_program(CLANG_TOOL NAMES clang++-HEAD clang++ clang++-22 clang++-21 clang++-20 clang++-19 clang++-18 clang++-17 clang++-16 clang++-15 clang++-14 clang++-13 clang++-12 clang++-11 clang++)
 execute_process(COMMAND ${CLANG_TOOL} --version OUTPUT_VARIABLE CLANG_TOOL_VERSION ERROR_VARIABLE CLANG_TOOL_VERSION)
 string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" CLANG_TOOL_VERSION "${CLANG_TOOL_VERSION}")
 message(STATUS "🔖 Clang ${CLANG_TOOL_VERSION} (${CLANG_TOOL})")

-find_program(CLANG_TIDY_TOOL NAMES clang-tidy clang-tidy-22 clang-tidy-21 clang-tidy-20 clang-tidy-19 clang-tidy-18 clang-tidy-17 clang-tidy-16 clang-tidy-15 clang-tidy-14 clang-tidy-13 clang-tidy-12 clang-tidy-11)
+find_program(CLANG_TIDY_TOOL NAMES clang-tidy-22 clang-tidy-21 clang-tidy-20 clang-tidy-19 clang-tidy-18 clang-tidy-17 clang-tidy-16 clang-tidy-15 clang-tidy-14 clang-tidy-13 clang-tidy-12 clang-tidy-11 clang-tidy)
 execute_process(COMMAND ${CLANG_TIDY_TOOL} --version OUTPUT_VARIABLE CLANG_TIDY_TOOL_VERSION ERROR_VARIABLE CLANG_TIDY_TOOL_VERSION)
 string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" CLANG_TIDY_TOOL_VERSION "${CLANG_TIDY_TOOL_VERSION}")
 message(STATUS "🔖 Clang-Tidy ${CLANG_TIDY_TOOL_VERSION} (${CLANG_TIDY_TOOL})")
@@ -68,7 +69,9 @@ string(REGEX MATCH "[0-9]+(\\.[0-9]+)+" VALGRIND_TOOL_VERSION "${VALGRIND_TOOL_V
 message(STATUS "🔖 Valgrind ${VALGRIND_TOOL_VERSION} (${VALGRIND_TOOL})")

 find_program(GENHTML_TOOL NAMES genhtml)
-find_program(SCAN_BUILD_TOOL NAMES scan-build scan-build-22 scan-build-21 scan-build-20 scan-build-19 scan-build-18 scan-build-17 scan-build-16 scan-build-15 scan-build-14 scan-build-13 scan-build-12 scan-build-11)
+find_program(PLOG_CONVERTER_TOOL NAMES plog-converter)
+find_program(PVS_STUDIO_ANALYZER_TOOL NAMES pvs-studio-analyzer)
+find_program(SCAN_BUILD_TOOL NAMES scan-build-15 scan-build-14 scan-build-13 scan-build-12 scan-build-11 scan-build)

 # the individual source files
 file(GLOB_RECURSE SRC_FILES ${PROJECT_SOURCE_DIR}/include/nlohmann/*.hpp)
@@ -246,20 +249,6 @@ add_custom_target(ci_test_strict_nul_handling
    COMMENT "Compile and test with strict NUL-byte handling enabled"
 )

-###############################################################################
-# Delete the deprecated functions.
-###############################################################################
-
-add_custom_target(ci_test_delete_deprecated_functions
-    COMMAND ${CMAKE_COMMAND}
-    -DCMAKE_BUILD_TYPE=Debug -GNinja
-    -DJSON_BuildTests=ON -DJSON_FastTests=ON -DJSON_DeleteDeprecatedFunctions=ON
-    -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_delete_deprecated_functions
-    COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_delete_deprecated_functions
-    COMMAND cd ${PROJECT_BINARY_DIR}/build_delete_deprecated_functions && ${CMAKE_CTEST_COMMAND} --parallel ${N} --output-on-failure
-    COMMENT "Compile and test with the deprecated functions deleted"
-)
-
 ###############################################################################
 # Disable global UDLs.
 ###############################################################################
@@ -364,7 +353,7 @@ add_custom_target(ci_test_coverage
    COMMAND ${LCOV_TOOL} --directory . --capture --output-file json.info --rc branch_coverage=1 --rc geninfo_unexecuted_blocks=1 --ignore-errors mismatch --ignore-errors unused
    COMMAND ${LCOV_TOOL} -e json.info ${SRC_FILES} --output-file json.info.filtered --rc branch_coverage=1 --ignore-errors unused
    COMMAND ${CMAKE_SOURCE_DIR}/tests/thirdparty/imapdl/filterbr.py json.info.filtered > json.info.filtered.noexcept
-    COMMAND ${GENHTML_TOOL} --title "JSON for Modern C++" --legend --demangle-cpp --output-directory html --show-details --branch-coverage json.info.filtered.noexcept
+    COMMAND genhtml --title "JSON for Modern C++" --legend --demangle-cpp --output-directory html --show-details --branch-coverage json.info.filtered.noexcept

    COMMENT "Compile and test with coverage"
 )
@@ -373,7 +362,7 @@ add_custom_target(ci_test_coverage
 # Sanitizers.
 ###############################################################################

-set(CLANG_CXX_FLAGS_SANITIZER "-g -O1 -fsanitize=address -fsanitize=undefined -fsanitize=integer -fsanitize=nullability -fno-omit-frame-pointer -fno-sanitize-recover=all -fno-sanitize=unsigned-integer-overflow -fno-sanitize=unsigned-shift-base -fsanitize-ignorelist=${PROJECT_SOURCE_DIR}/cmake/clang_sanitizer_ignorelist.txt")
+set(CLANG_CXX_FLAGS_SANITIZER "-g -O1 -fsanitize=address -fsanitize=undefined -fsanitize=integer -fsanitize=nullability -fno-omit-frame-pointer -fno-sanitize-recover=all -fno-sanitize=unsigned-integer-overflow -fno-sanitize=unsigned-shift-base")

 add_custom_target(ci_test_clang_sanitizer
    COMMAND CXX=${CLANG_TOOL} CXXFLAGS=${CLANG_CXX_FLAGS_SANITIZER} ${CMAKE_COMMAND}
@@ -389,8 +378,8 @@ add_custom_target(ci_test_clang_sanitizer
 # Check if header is amalgamated and sources are properly indented.
 ###############################################################################

-# Same file set as .github/workflows/check_amalgamation.yml, so this CMake target (which can be run locally) is held
-# to the same standard as the workflow (which runs for pull requests and for pushes to develop/master/release/*).
+# Same file set as .github/workflows/check_amalgamation.yml, so a direct push to develop/master/release/*
+# (which only this CMake target checks, not the pull_request-only workflow) is held to the same standard.
 file(GLOB_RECURSE INDENT_FILES
    ${PROJECT_SOURCE_DIR}/docs/mkdocs/docs/examples/*.hpp
    ${PROJECT_SOURCE_DIR}/docs/mkdocs/docs/examples/*.cpp
@@ -407,10 +396,11 @@ list(FILTER INDENT_FILES EXCLUDE REGEX "/tests/thirdparty/|/tests/abi/include/nl
 set(include_dir ${PROJECT_SOURCE_DIR}/single_include/nlohmann)
 set(tool_dir ${PROJECT_SOURCE_DIR}/tools/amalgamate)
 add_custom_target(ci_test_amalgamation
-    COMMAND rm -fr ${include_dir}/json.hpp~ ${include_dir}/json_fwd.hpp~ ${include_dir}/json_literals.hpp~
+    COMMAND rm -fr ${include_dir}/json.hpp~ ${include_dir}/json_fwd.hpp~ ${include_dir}/json_literals.hpp~ ${include_dir}/json_view.hpp~
    COMMAND cp ${include_dir}/json.hpp ${include_dir}/json.hpp~
    COMMAND cp ${include_dir}/json_fwd.hpp ${include_dir}/json_fwd.hpp~
    COMMAND cp ${include_dir}/json_literals.hpp ${include_dir}/json_literals.hpp~
+    COMMAND cp ${include_dir}/json_view.hpp ${include_dir}/json_view.hpp~
    COMMAND cp ${PROJECT_SOURCE_DIR}/BUILD.bazel ${PROJECT_SOURCE_DIR}/BUILD.bazel~

    COMMAND ${Python3_EXECUTABLE} -mvenv venv_astyle
@@ -420,19 +410,19 @@ add_custom_target(ci_test_amalgamation
    COMMAND ${Python3_EXECUTABLE} ${tool_dir}/amalgamate.py -c ${tool_dir}/config_json.json -s .
    COMMAND ${Python3_EXECUTABLE} ${tool_dir}/amalgamate.py -c ${tool_dir}/config_json_fwd.json -s .
    COMMAND cp ${PROJECT_SOURCE_DIR}/include/nlohmann/json_literals.hpp ${include_dir}/json_literals.hpp
-    COMMAND venv_astyle/bin/astyle --project=tools/astyle/.astylerc --suffix=none ${include_dir}/json.hpp ${include_dir}/json_fwd.hpp ${include_dir}/json_literals.hpp
+    COMMAND ${Python3_EXECUTABLE} ${tool_dir}/amalgamate.py -c ${tool_dir}/config_json_view.json -s .
+    COMMAND venv_astyle/bin/astyle --project=tools/astyle/.astylerc --suffix=none ${include_dir}/json.hpp ${include_dir}/json_fwd.hpp ${include_dir}/json_view.hpp
    COMMAND ${CMAKE_COMMAND} -P ${PROJECT_SOURCE_DIR}/cmake/scripts/gen_bazel_build_file.cmake

    COMMAND diff ${include_dir}/json.hpp~ ${include_dir}/json.hpp
    COMMAND diff ${include_dir}/json_fwd.hpp~ ${include_dir}/json_fwd.hpp
    COMMAND diff ${include_dir}/json_literals.hpp~ ${include_dir}/json_literals.hpp
+    COMMAND diff ${include_dir}/json_view.hpp~ ${include_dir}/json_view.hpp
    COMMAND diff ${PROJECT_SOURCE_DIR}/BUILD.bazel~ ${PROJECT_SOURCE_DIR}/BUILD.bazel

    COMMAND venv_astyle/bin/astyle --project=tools/astyle/.astylerc --suffix=orig ${INDENT_FILES}
    COMMAND for FILE in `find . -name '*.orig'`\; do false \; done

-    COMMAND rm -f ${include_dir}/json.hpp~ ${include_dir}/json_fwd.hpp~ ${include_dir}/json_literals.hpp~ ${PROJECT_SOURCE_DIR}/BUILD.bazel~
-
    WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
    COMMENT "Check amalgamation, formatting, and BUILD.bazel"
 )
@@ -455,14 +445,13 @@ add_custom_target(ci_test_single_header
 # Valgrind.
 ###############################################################################

-# The Unicode test (~17M assertions) is too slow under Valgrind.
 add_custom_target(ci_test_valgrind
    COMMAND CXX=${GCC_TOOL} ${CMAKE_COMMAND}
        -DCMAKE_BUILD_TYPE=Debug -GNinja
        -DJSON_BuildTests=ON -DJSON_Valgrind=ON
        -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_valgrind
    COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_valgrind
-    COMMAND cd ${PROJECT_BINARY_DIR}/build_valgrind && ${CMAKE_CTEST_COMMAND} -L valgrind --exclude-regex "test-unicode" --parallel ${N} --output-on-failure
+    COMMAND cd ${PROJECT_BINARY_DIR}/build_valgrind && ${CMAKE_CTEST_COMMAND} -L valgrind --parallel ${N} --output-on-failure
    COMMENT "Compile and test with Valgrind"
 )

@@ -718,8 +707,8 @@ ci_get_cmake(4.0.0  CMAKE_4_0_0_BINARY)

 # the tests require CMake 3.13 or later, so they are excluded for CMake 3.5.0
 set(JSON_CMAKE_FLAGS_3_5_0 JSON_Diagnostics JSON_Diagnostic_Positions JSON_GlobalUDLs JSON_ImplicitConversions JSON_DisableEnumSerialization
-    JSON_DisableTupleReferenceConversion JSON_LegacyDiscardedValueComparison JSON_Install JSON_MultipleHeaders JSON_SystemInclude JSON_Valgrind
-    JSON_StrictNulHandling JSON_StrictBinaryUTF8 JSON_DeleteDeprecatedFunctions)
+    JSON_LegacyDiscardedValueComparison JSON_Install JSON_MultipleHeaders JSON_SystemInclude JSON_Valgrind
+    JSON_StrictNulHandling JSON_StrictBinaryUTF8)
 set(JSON_CMAKE_FLAGS_3_31_6 JSON_BuildTests ${JSON_CMAKE_FLAGS_3_5_0})
 set(JSON_CMAKE_FLAGS_4_0_0 JSON_BuildTests ${JSON_CMAKE_FLAGS_3_5_0})

@@ -775,16 +764,19 @@ add_custom_target(ci_cmake_flags
 # Use more installed compilers.
 ###############################################################################

-foreach(COMPILER g++-4.8 g++-4.9 g++-5 g++-6)
+foreach(COMPILER g++-4.8 g++-4.9 g++-5 g++-6 g++-7 g++-8 g++-9 g++-10 g++-11 clang++-3.5 clang++-3.6 clang++-3.7 clang++-3.8 clang++-3.9 clang++-4.0 clang++-5.0 clang++-6.0 clang++-7 clang++-8 clang++-9 clang++-10 clang++-11 clang++-12 clang++-13 clang++-14 clang++-15 clang++-16 clang++-17 clang++-18 clang++-19 clang++-20)
    find_program(COMPILER_TOOL NAMES ${COMPILER})
    if (COMPILER_TOOL)
+        unset(ADDITIONAL_FLAGS)
+
        add_custom_target(ci_test_compiler_${COMPILER}
            COMMAND CXX=${COMPILER} ${CMAKE_COMMAND}
                -DCMAKE_BUILD_TYPE=Debug -GNinja
                -DJSON_BuildTests=ON -DJSON_FastTests=ON
                -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_compiler_${COMPILER}
+                ${ADDITIONAL_FLAGS}
            COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_compiler_${COMPILER}
-            COMMAND cd ${PROJECT_BINARY_DIR}/build_compiler_${COMPILER} && ${CMAKE_CTEST_COMMAND} --parallel ${N} --output-on-failure
+            COMMAND cd ${PROJECT_BINARY_DIR}/build_compiler_${COMPILER} && ${CMAKE_CTEST_COMMAND} --parallel ${N} --exclude-regex "test-unicode" --output-on-failure
            COMMENT "Compile and test with ${COMPILER}"
        )
    endif()
@@ -796,8 +788,9 @@ add_custom_target(ci_test_compiler_default
        -DCMAKE_BUILD_TYPE=Debug -GNinja
        -DJSON_BuildTests=ON -DJSON_FastTests=ON
        -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_compiler_default
+        ${ADDITIONAL_FLAGS}
    COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_compiler_default --parallel ${N}
-    COMMAND cd ${PROJECT_BINARY_DIR}/build_compiler_default && ${CMAKE_CTEST_COMMAND} --parallel ${N} -LE git_required --output-on-failure
+    COMMAND cd ${PROJECT_BINARY_DIR}/build_compiler_default && ${CMAKE_CTEST_COMMAND} --parallel ${N} --exclude-regex "test-unicode" -LE git_required --output-on-failure
    COMMENT "Compile and test with default C++ compiler"
 )

@@ -818,12 +811,10 @@ add_custom_target(ci_cuda_example

 add_custom_target(ci_module_cpp20
    COMMAND ${CMAKE_COMMAND}
-        -DCMAKE_BUILD_TYPE=Debug -GNinja
+        -DCMAKE_BUILD_TYPE=Debug -GNinja 
        -DJSON_CI=ON -DNLOHMANN_JSON_BUILD_MODULES=ON -DJSON_Install=ON
-        "-DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}"
        -S${PROJECT_SOURCE_DIR}/tests/module_cpp20 -B${PROJECT_BINARY_DIR}/ci_module_cpp20
    COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/ci_module_cpp20
-    VERBATIM
 )

 ###############################################################################
@@ -837,7 +828,7 @@ add_custom_target(ci_icpc
        -DJSON_BuildTests=ON -DJSON_FastTests=ON
        -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_icpc
    COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_icpc
-    COMMAND cd ${PROJECT_BINARY_DIR}/build_icpc && ${CMAKE_CTEST_COMMAND} --parallel ${N} --output-on-failure
+    COMMAND cd ${PROJECT_BINARY_DIR}/build_icpc && ${CMAKE_CTEST_COMMAND} --parallel ${N} --exclude-regex "test-unicode" --output-on-failure
    COMMENT "Compile and test with ICPC"
 )

@@ -848,7 +839,7 @@ add_custom_target(ci_icpx
        -DJSON_BuildTests=ON -DJSON_FastTests=ON
        -S${PROJECT_SOURCE_DIR} -B${PROJECT_BINARY_DIR}/build_icpx
    COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_icpx
-    COMMAND cd ${PROJECT_BINARY_DIR}/build_icpx && ${CMAKE_CTEST_COMMAND} --parallel ${N} --output-on-failure
+    COMMAND cd ${PROJECT_BINARY_DIR}/build_icpx && ${CMAKE_CTEST_COMMAND} --parallel ${N} --exclude-regex "test-unicode" --output-on-failure
    COMMENT "Compile and test with ICPX (Intel oneAPI DPC++/C++)"
 )

@@ -884,7 +875,7 @@ add_custom_target(ci_nvhpc
    COMMAND ${CMAKE_COMMAND} --build ${PROJECT_BINARY_DIR}/build_nvhpc
    # the pipes are escaped so the surrounding shell passes them to ctest verbatim
    # instead of treating them as shell pipe operators
-    COMMAND cd ${PROJECT_BINARY_DIR}/build_nvhpc && ${CMAKE_CTEST_COMMAND} --parallel ${N} --exclude-regex "test-comparison_cpp20\\|test-comparison_legacy_cpp20\\|test-constructor1_cpp11\\|test-deserialization_cpp20" --output-on-failure
+    COMMAND cd ${PROJECT_BINARY_DIR}/build_nvhpc && ${CMAKE_CTEST_COMMAND} --parallel ${N} --exclude-regex "test-unicode\\|test-comparison_cpp20\\|test-comparison_legacy_cpp20\\|test-constructor1_cpp11\\|test-deserialization_cpp20" --output-on-failure
    COMMENT "Compile and test with NVIDIA HPC SDK (nvc++)"
 )

@@ -1,8 +0,0 @@
-# Sanitizer ignore list for ci_test_clang_sanitizer (-fsanitize-ignorelist).
-#
-# libstdc++ 14's <format> declares `_Scanner(basic_string_view<_CharT>, size_t __nargs = -1)`, so every std::format
-# call converts -1 to size_t, which -fsanitize=integer reports as implicit-integer-sign-change. This is
-# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119429, not a bug in this library. Only that check and only <format> are
-# excluded, so implicit sign changes in the library and the tests are still reported.
-[implicit-integer-sign-change]
-src:*/include/c++/*/format
@@ -1,42 +0,0 @@
-# Imported target for installations made with Meson (see meson.build).
-#
-# CMake installations generate this file with install(EXPORT ...). Meson cannot
-# do that, but as the library is header-only, the target only needs an include
-# directory, the C++ standard, and the compile definitions of the options that
-# differ from their defaults. Paths are computed relative to this file so that
-# the installation can be relocated (e.g., into a sysroot), unless includedir or
-# datadir is outside the prefix.
-
-if(TARGET @PROJECT_NAME@::@NLOHMANN_JSON_TARGET_NAME@)
-    return()
-endif()
-
-get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_DIR}/@NLOHMANN_JSON_CONFIG_TO_PREFIX@" ABSOLUTE)
-# As in CMake's generated file: avoid "//include" for an installation to "/".
-if(_IMPORT_PREFIX STREQUAL "/")
-    set(_IMPORT_PREFIX "")
-endif()
-
-add_library(@PROJECT_NAME@::@NLOHMANN_JSON_TARGET_NAME@ INTERFACE IMPORTED)
-set_target_properties(@PROJECT_NAME@::@NLOHMANN_JSON_TARGET_NAME@ PROPERTIES
-    INTERFACE_INCLUDE_DIRECTORIES "@NLOHMANN_JSON_INCLUDE_DIR@"
-)
-if(CMAKE_VERSION VERSION_LESS 3.8)
-    set_target_properties(@PROJECT_NAME@::@NLOHMANN_JSON_TARGET_NAME@ PROPERTIES
-        INTERFACE_COMPILE_FEATURES cxx_range_for
-    )
-else()
-    set_target_properties(@PROJECT_NAME@::@NLOHMANN_JSON_TARGET_NAME@ PROPERTIES
-        INTERFACE_COMPILE_FEATURES cxx_std_11
-    )
-endif()
-
-set(_NLOHMANN_JSON_COMPILE_DEFINITIONS "@NLOHMANN_JSON_COMPILE_DEFINITIONS@")
-if(_NLOHMANN_JSON_COMPILE_DEFINITIONS)
-    set_target_properties(@PROJECT_NAME@::@NLOHMANN_JSON_TARGET_NAME@ PROPERTIES
-        INTERFACE_COMPILE_DEFINITIONS "${_NLOHMANN_JSON_COMPILE_DEFINITIONS}"
-    )
-endif()
-
-unset(_NLOHMANN_JSON_COMPILE_DEFINITIONS)
-unset(_IMPORT_PREFIX)
@@ -4,4 +4,4 @@ includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
 Name: @PROJECT_NAME@
 Description: JSON for Modern C++
 Version: @PROJECT_VERSION@
-Cflags: -I${includedir}@NLOHMANN_JSON_PKGCONFIG_CFLAGS@
+Cflags: -I${includedir}
@@ -48,8 +48,7 @@ cc_library(
    name = "singleheader-json",
    hdrs = [
        "single_include/nlohmann/json.hpp",
-        "single_include/nlohmann/json_fwd.hpp",
-        "single_include/nlohmann/json_literals.hpp",
+        "single_include/nlohmann/json_view.hpp",
    ],
    includes = ["single_include"],
    visibility = ["//visibility:public"],
@@ -64,7 +64,7 @@ if(MODE STREQUAL "undef")
    # recipe is self-contained and its output is byte-stable across reruns.
    # The embedded SPDX tags below are part of the *generated* file's
    # content, not a REUSE header for this .cmake script itself (which is
-    # already covered by the blanket path = "**" rule in REUSE.toml) -- keep
+    # already covered by the blanket "Files: *" rule in .reuse/dep5) -- keep
    # them wrapped in REUSE-IgnoreStart/End so `reuse lint` does not try to
    # parse "MIT\n")" as this file's own SPDX-License-Identifier value.
    # REUSE-IgnoreStart
@@ -7,12 +7,12 @@ This URL provides the most recent documentation and also applies to previous ver
 functions is not removed; instead, it is marked as deprecated.

 If you want to view the documentation for a specific tag or commit hash, you can generate it locally as follows (example
-using tag `v3.12.0`):
+using tag `v3.10.2`):

 ```shell
 git clone https://github.com/nlohmann/json.git
 cd json
-git checkout v3.12.0
+git checkout v3.10.2
 make install_venv serve -C docs/mkdocs
 ```

@@ -1,24 +1,48 @@
 SHELL=/usr/bin/env bash
-PYTHON=../mkdocs/venv/bin/python3
+SED ?= $(shell which gsed 2>/dev/null || which sed)
+
+MKDOCS_PAGES=$(shell cd ../mkdocs/docs/ && find * -type f -name '*.md' | sort)

 .PHONY: all
 all: JSON_for_Modern_C++.tgz

-# generate the search index (the docset target does this itself, this is
-# only handy for inspecting the index)
-docSet.dsidx: generate_docset.py
-	$(PYTHON) generate_docset.py index docSet.dsidx
+docSet.dsidx: docSet.sql
+	# generate index
+	sqlite3 docSet.dsidx <docSet.sql

-# build the documentation and turn it into a self-contained docset
-.PHONY: JSON_for_Modern_C++.docset
-JSON_for_Modern_C++.docset:
+JSON_for_Modern_C++.docset: Info.plist docSet.dsidx
+	rm -fr JSON_for_Modern_C++.docset JSON_for_Modern_C++.tgz
+	mkdir -p JSON_for_Modern_C++.docset/Contents/Resources/Documents/
+	cp icon*.png JSON_for_Modern_C++.docset
+	cp Info.plist JSON_for_Modern_C++.docset/Contents
+	# build and copy documentation
 	$(MAKE) install_venv -C ../mkdocs
 	$(MAKE) build -C ../mkdocs
-	$(PYTHON) generate_docset.py docset ../mkdocs/site .
+	cp -r ../mkdocs/site/* JSON_for_Modern_C++.docset/Contents/Resources/Documents
+	# patch CSS to hide navigation items
+	echo -e "\n\nheader, footer, nav.md-tabs, nav.md-tabs--active, div.md-sidebar--primary, a.md-content__button { display: none; }" >> "$$(ls JSON_for_Modern_C++.docset/Contents/Resources/Documents/assets/stylesheets/main.*.min.css)"
+	# fix spacing
+	echo -e "\n\ndiv.md-sidebar div.md-sidebar--secondary, div.md-main__inner { top: 0; margin-top: 0 }" >> "$$(ls JSON_for_Modern_C++.docset/Contents/Resources/Documents/assets/stylesheets/main.*.min.css)"
+	# remove "JSON for Modern C++" from page titles (fallback)
+	find JSON_for_Modern_C++.docset/Contents/Resources/Documents -type f -exec $(SED) -i 's| - JSON for Modern C++</title>|</title>|' {} +
+	# replace page titles with name from index, if available
+	for page in $(MKDOCS_PAGES); do \
+		case "$$page" in \
+			*/index.md) path=$${page/\/index.md/} ;; \
+			*)          path=$${page/.md/}        ;; \
+		esac; \
+		title=$$(sqlite3 docSet.dsidx "SELECT name FROM searchIndex WHERE path='$$path/index.html'" | tr '\n' ',' | $(SED) -e 's/,/, /g' -e 's/, $$/\n/'); \
+		if [ "x$$title" != "x" ]; then \
+			$(SED) -i "s%<title>.*</title>%<title>$$title</title>%" "JSON_for_Modern_C++.docset/Contents/Resources/Documents/$$path/index.html"; \
+		fi \
+	done
+	# clean up
+	rm JSON_for_Modern_C++.docset/Contents/Resources/Documents/sitemap.*
+	# copy index
+	cp docSet.dsidx JSON_for_Modern_C++.docset/Contents/Resources/

-.PHONY: JSON_for_Modern_C++.tgz
 JSON_for_Modern_C++.tgz: JSON_for_Modern_C++.docset
-	$(PYTHON) generate_docset.py tgz .
+	tar --exclude='.DS_Store' -cvzf JSON_for_Modern_C++.tgz JSON_for_Modern_C++.docset

 # install docset for Zeal documentation browser (https://zealdocs.org/)
 .PHONY: install_docset_zeal
@@ -28,6 +52,26 @@ install_docset_zeal: JSON_for_Modern_C++.docset
 	mkdir -p $$docset_root; \
 	cp -r JSON_for_Modern_C++.docset $$docset_root/

+# both targets below compare the docset search index with the mkdocs page
+# set. They share the same normalization (docs/foo/index.md and
+# docs/foo.md both become foo/index.html, the URL mkdocs itself would
+# give the page; the top-level index.md is excluded, as it is not part
+# of the hand-curated docSet.sql) and use comm(1) on two sorted lists
+# instead of running a sqlite3 query, or an O(n*m) nested shell loop,
+# once per page.
+DOCSET_INDEX_PATHS=$(shell sqlite3 docSet.dsidx "SELECT DISTINCT path FROM searchIndex" | sort)
+DOCSET_PAGE_PATHS=$(shell echo '$(MKDOCS_PAGES)' | tr ' ' '\n' | grep -v '^index\.md$$' | $(SED) -E 's@/index\.md$$@/index.html@; s@\.md$$@/index.html@' | sort)
+
+# list mkdocs pages missing from the docset index
+.PHONY: list_missing_pages
+list_missing_pages: docSet.dsidx
+	@comm -23 <(echo '$(DOCSET_PAGE_PATHS)' | tr ' ' '\n') <(echo '$(DOCSET_INDEX_PATHS)' | tr ' ' '\n')
+
+# list paths in the docset index without a corresponding mkdocs page
+.PHONY: list_removed_paths
+list_removed_paths: docSet.dsidx
+	@comm -13 <(echo '$(DOCSET_PAGE_PATHS)' | tr ' ' '\n') <(echo '$(DOCSET_INDEX_PATHS)' | tr ' ' '\n')
+
 .PHONY: clean
 clean:
 	rm -f docSet.dsidx
@@ -4,8 +4,7 @@ The folder contains the required files to create a [docset](https://kapeli.com/d
 documentation browsers like [Dash](https://kapeli.com/dash), [Velocity](https://velocity.silverlakesoftware.com), or
 [Zeal](https://zealdocs.org).

-The docset (pages and search index) is generated by `generate_docset.py` from the mkdocs site and `mkdocs.yml`. It
-can be created with
+The docset can be created with

 ```sh
 make JSON_for_Modern_C++.docset
@@ -13,7 +12,6 @@ make JSON_for_Modern_C++.docset

 The generated folder `JSON_for_Modern_C++.docset` can then be opened in the documentation browser. `make all` builds a
 `JSON_for_Modern_C++.tgz` archive instead, and `make install_docset_zeal` installs the docset for Zeal directly.
-`make docSet.dsidx` builds only the search index.

 A recent version is also part of the [Dash user contributions](https://github.com/Kapeli/Dash-User-Contributions/tree/master/docsets/JSON_for_Modern_C%2B%2B).

@@ -0,0 +1,360 @@
+DROP TABLE IF EXISTS searchIndex;
+CREATE TABLE searchIndex(id INTEGER PRIMARY KEY, name TEXT, type TEXT, path TEXT);
+CREATE UNIQUE INDEX anchor ON searchIndex (name, type, path);
+
+-- API
+INSERT INTO searchIndex(name, type, path) VALUES ('adl_serializer', 'Class', 'api/adl_serializer/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('adl_serializer::from_json', 'Function', 'api/adl_serializer/from_json/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('adl_serializer::to_json', 'Function', 'api/adl_serializer/to_json/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('byte_container_with_subtype', 'Class', 'api/byte_container_with_subtype/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('byte_container_with_subtype::byte_container_with_subtype', 'Constructor', 'api/byte_container_with_subtype/byte_container_with_subtype/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('byte_container_with_subtype::clear_subtype', 'Method', 'api/byte_container_with_subtype/clear_subtype/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('byte_container_with_subtype::has_subtype', 'Method', 'api/byte_container_with_subtype/has_subtype/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('byte_container_with_subtype::operator!=', 'Operator', 'api/byte_container_with_subtype/operator_ne/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('byte_container_with_subtype::operator==', 'Operator', 'api/byte_container_with_subtype/operator_eq/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('byte_container_with_subtype::set_subtype', 'Method', 'api/byte_container_with_subtype/set_subtype/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('byte_container_with_subtype::subtype', 'Method', 'api/byte_container_with_subtype/subtype/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json', 'Class', 'api/basic_json/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('format_as', 'Function', 'api/basic_json/format_as/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::accept', 'Function', 'api/basic_json/accept/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::array', 'Function', 'api/basic_json/array/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::array_t', 'Type', 'api/basic_json/array_t/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::as_base_class', 'Method', 'api/basic_json/as_base_class/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::at', 'Method', 'api/basic_json/at/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::back', 'Method', 'api/basic_json/back/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::basic_json', 'Constructor', 'api/basic_json/basic_json/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::begin', 'Method', 'api/basic_json/begin/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::binary', 'Function', 'api/basic_json/binary/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::binary_t', 'Type', 'api/basic_json/binary_t/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::boolean_t', 'Type', 'api/basic_json/boolean_t/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::cbegin', 'Method', 'api/basic_json/cbegin/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::cbor_tag_handler_t', 'Enum', 'api/basic_json/cbor_tag_handler_t/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::cend', 'Method', 'api/basic_json/cend/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::clear', 'Method', 'api/basic_json/clear/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::contains', 'Method', 'api/basic_json/contains/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::count', 'Method', 'api/basic_json/count/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::crbegin', 'Method', 'api/basic_json/crbegin/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::crend', 'Method', 'api/basic_json/crend/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::default_object_comparator_t', 'Type', 'api/basic_json/default_object_comparator_t/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::diff', 'Function', 'api/basic_json/diff/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::dump', 'Method', 'api/basic_json/dump/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::emplace', 'Method', 'api/basic_json/emplace/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::emplace_back', 'Method', 'api/basic_json/emplace_back/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::empty', 'Method', 'api/basic_json/empty/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::end', 'Method', 'api/basic_json/end/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('basic_json::end_pos', 'Method', 'api/basic_json/end_pos/index.html');
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+INSERT INTO searchIndex(name, type, path) VALUES ('json_sax::string', 'Method', 'api/json_sax/string/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('operator""_json', 'Literal', 'api/operator_literal_json/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('operator""_json_pointer', 'Literal', 'api/operator_literal_json_pointer/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('operator<<', 'Operator', 'api/operator_ltlt/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('operator>>', 'Operator', 'api/operator_gtgt/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('ordered_json', 'Class', 'api/ordered_json/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('ordered_json_document', 'Class', 'api/ordered_json_document/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('ordered_json_editable_document', 'Class', 'api/ordered_json_editable_document/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('ordered_json_editable_view', 'Class', 'api/ordered_json_editable_view/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('ordered_json_view', 'Class', 'api/ordered_json_view/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('ordered_map', 'Class', 'api/ordered_map/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('std::formatter<basic_json>', 'Class', 'api/basic_json/std_formatter/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('std::hash<basic_json>', 'Class', 'api/basic_json/std_hash/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('std::swap<basic_json>', 'Function', 'api/basic_json/std_swap/index.html');
+
+-- Features
+INSERT INTO searchIndex(name, type, path) VALUES ('Arbitrary Type Conversions', 'Guide', 'features/arbitrary_types/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Binary Formats', 'Guide', 'features/binary_formats/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Binary Formats: BJData', 'Guide', 'features/binary_formats/bjdata/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Binary Formats: BSON', 'Guide', 'features/binary_formats/bson/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Binary Formats: CBOR', 'Guide', 'features/binary_formats/cbor/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Binary Formats: MessagePack', 'Guide', 'features/binary_formats/messagepack/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Binary Formats: BON8', 'Guide', 'features/binary_formats/bon8/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Binary Formats: UBJSON', 'Guide', 'features/binary_formats/ubjson/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Binary Values', 'Guide', 'features/binary_values/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Comments', 'Guide', 'features/comments/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Element Access', 'Guide', 'features/element_access/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Element Access: Access with default value: value', 'Guide', 'features/element_access/default_value/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Element Access: Checked access: at', 'Guide', 'features/element_access/checked_access/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Element Access: Unchecked access: operator[]', 'Guide', 'features/element_access/unchecked_access/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Exceptions', 'Guide', 'home/exceptions/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Integration: Migration Guide', 'Guide', 'integration/migration_guide/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Integration: CMake', 'Guide', 'integration/cmake/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Integration: Header only', 'Guide', 'integration/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Integration: Package Managers', 'Guide', 'integration/package_managers/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Integration: Pkg-config', 'Guide', 'integration/pkg-config/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Iterators', 'Guide', 'features/iterators/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON Merge Patch', 'Guide', 'features/merge_patch/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON Patch and Diff', 'Guide', 'features/json_patch/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON Pointer', 'Guide', 'features/json_pointer/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Zero-copy JSON views', 'Guide', 'features/json_view/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('nlohmann Namespace', 'Guide', 'features/namespace/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Types', 'Guide', 'features/types/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Types: Number Handling', 'Guide', 'features/types/number_handling/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Object Order', 'Guide', 'features/object_order/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Performance', 'Guide', 'features/performance/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Parsing', 'Guide', 'features/parsing/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Parsing: JSON Lines', 'Guide', 'features/parsing/json_lines/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Parsing: Parser Callbacks', 'Guide', 'features/parsing/parser_callbacks/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Parsing: Parsing and Exceptions', 'Guide', 'features/parsing/parse_exceptions/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Parsing: SAX Interface', 'Guide', 'features/parsing/sax_interface/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Parsing: Untrusted Input', 'Guide', 'features/parsing/untrusted_input/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Runtime Assertions', 'Guide', 'features/assertions/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Specializing enum conversion', 'Guide', 'features/enum_conversion/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Supported Macros', 'Guide', 'features/macros/index.html');
+
+-- Macros
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_ASSERT', 'Macro', 'api/macros/json_assert/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_BRACE_INIT_COPY_SEMANTICS', 'Macro', 'api/macros/json_brace_init_copy_semantics/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_CATCH_USER', 'Macro', 'api/macros/json_throw_user/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_DIAGNOSTICS', 'Macro', 'api/macros/json_diagnostics/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_DIAGNOSTIC_POSITIONS', 'Macro', 'api/macros/json_diagnostic_positions/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_DISABLE_ENUM_SERIALIZATION', 'Macro', 'api/macros/json_disable_enum_serialization/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_DISABLE_TUPLE_REFERENCE_CONVERSION', 'Macro', 'api/macros/json_disable_tuple_reference_conversion/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_CPP_11', 'Macro', 'api/macros/json_has_cpp_11/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_CPP_14', 'Macro', 'api/macros/json_has_cpp_11/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_CPP_17', 'Macro', 'api/macros/json_has_cpp_11/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_CPP_20', 'Macro', 'api/macros/json_has_cpp_11/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_CPP_23', 'Macro', 'api/macros/json_has_cpp_11/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_CPP_26', 'Macro', 'api/macros/json_has_cpp_11/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_EXPERIMENTAL_FILESYSTEM', 'Macro', 'api/macros/json_has_filesystem/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_FILESYSTEM', 'Macro', 'api/macros/json_has_filesystem/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_RANGES', 'Macro', 'api/macros/json_has_ranges/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_STATIC_RTTI', 'Macro', 'api/macros/json_has_static_rtti/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_STD_FORMAT', 'Macro', 'api/macros/json_has_std_format/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_HAS_THREE_WAY_COMPARISON', 'Macro', 'api/macros/json_has_three_way_comparison/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_NOEXCEPTION', 'Macro', 'api/macros/json_noexception/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_NO_AUTOMATIC_UDLS', 'Macro', 'api/macros/json_no_automatic_udls/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_NO_IO', 'Macro', 'api/macros/json_no_io/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_NO_THREAD_LOCAL', 'Macro', 'api/macros/json_no_thread_local/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_PRECISE_STREAM_POSITION', 'Macro', 'api/macros/json_precise_stream_position/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_SKIP_LIBRARY_VERSION_CHECK', 'Macro', 'api/macros/json_skip_library_version_check/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_SKIP_UNSUPPORTED_COMPILER_CHECK', 'Macro', 'api/macros/json_skip_unsupported_compiler_check/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_STRICT_BINARY_UTF8', 'Macro', 'api/macros/json_strict_binary_utf8/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_STRICT_NUL_HANDLING', 'Macro', 'api/macros/json_strict_nul_handling/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_THROW_USER', 'Macro', 'api/macros/json_throw_user/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_TRY_USER', 'Macro', 'api/macros/json_throw_user/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_USE_GLOBAL_UDLS', 'Macro', 'api/macros/json_use_global_udls/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_USE_IMPLICIT_CONVERSIONS', 'Macro', 'api/macros/json_use_implicit_conversions/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON', 'Macro', 'api/macros/json_use_legacy_discarded_value_comparison/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_USE_SIMDUTF', 'Macro', 'api/macros/json_use_simdutf/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('Macros', 'Macro', 'api/macros/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE', 'Macro', 'api/macros/nlohmann_define_derived_type/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_ONLY_SERIALIZE', 'Macro', 'api/macros/nlohmann_define_derived_type/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_ONLY_SERIALIZE_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT', 'Macro', 'api/macros/nlohmann_define_derived_type/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_DEFAULT_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_INTRUSIVE_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE', 'Macro', 'api/macros/nlohmann_define_derived_type/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE', 'Macro', 'api/macros/nlohmann_define_derived_type/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT', 'Macro', 'api/macros/nlohmann_define_derived_type/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_DEFAULT_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_DERIVED_TYPE_NON_INTRUSIVE_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_INTRUSIVE', 'Macro', 'api/macros/nlohmann_define_type_intrusive/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE', 'Macro', 'api/macros/nlohmann_define_type_intrusive/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_INTRUSIVE_ONLY_SERIALIZE_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT', 'Macro', 'api/macros/nlohmann_define_type_intrusive/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_DEFAULT_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_INTRUSIVE_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE', 'Macro', 'api/macros/nlohmann_define_type_non_intrusive/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE', 'Macro', 'api/macros/nlohmann_define_type_non_intrusive/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_ONLY_SERIALIZE_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT', 'Macro', 'api/macros/nlohmann_define_type_non_intrusive/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_DEFAULT_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE_WITH_NAMES', 'Macro', 'api/macros/nlohmann_define_type_with_names/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_JSON_NAMESPACE', 'Macro', 'api/macros/nlohmann_json_namespace/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_JSON_NAMESPACE_BEGIN', 'Macro', 'api/macros/nlohmann_json_namespace_begin/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_JSON_NAMESPACE_END', 'Macro', 'api/macros/nlohmann_json_namespace_begin/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_JSON_NAMESPACE_NO_VERSION', 'Macro', 'api/macros/nlohmann_json_namespace_no_version/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_JSON_SERIALIZE_ENUM', 'Macro', 'api/macros/nlohmann_json_serialize_enum/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_JSON_SERIALIZE_ENUM_STRICT', 'Macro', 'api/macros/nlohmann_json_serialize_enum_strict/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_JSON_VERSION_MAJOR', 'Macro', 'api/macros/nlohmann_json_version_major/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_JSON_VERSION_MINOR', 'Macro', 'api/macros/nlohmann_json_version_major/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('NLOHMANN_JSON_VERSION_PATCH', 'Macro', 'api/macros/nlohmann_json_version_major/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_VIEW_NO_SIMD', 'Macro', 'api/macros/json_view_no_simd/index.html');
+INSERT INTO searchIndex(name, type, path) VALUES ('JSON_VIEW_USE_SSSE3', 'Macro', 'api/macros/json_view_use_ssse3/index.html');
@@ -1,532 +0,0 @@
-#!/usr/bin/env python3
-
-"""Generate the Dash docset search index from the mkdocs sources."""
-
-import argparse
-import glob
-import hashlib
-import html
-import os
-import re
-import shutil
-import sqlite3
-import sys
-import tarfile
-import urllib.parse
-import urllib.request
-
-import yaml
-
-HERE = os.path.dirname(os.path.abspath(__file__))
-MKDOCS_YML = os.path.join(HERE, '..', 'mkdocs', 'mkdocs.yml')
-PAGES = os.path.join(HERE, '..', 'mkdocs', 'docs')
-
-# api pages whose (name, type) cannot be derived by the heuristics
-OVERRIDES = {
-}
-
-DOCSET = 'JSON_for_Modern_C++.docset'
-TITLE_SUFFIX = ' - JSON for Modern C++</title>'
-
-# CSS rules appended to the stylesheet: hide navigation items and fix spacing
-# hide the navigation (the documentation browser has its own); Material's class selectors would win over element
-# selectors, hence the classes and !important
-CSS_PATCH = (
-    '\n\n.md-header, .md-footer, .md-tabs, .md-sidebar--primary, .md-content__button { display: none !important; }'
-    '\n\n.md-sidebar--secondary, .md-main__inner { top: 0 !important; margin-top: 0 !important; }'
-)
-
-USER_AGENT = ('Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 '
-              '(KHTML, like Gecko) Chrome/124.0 Safari/537.36')
-CONTENT_TYPE_EXT = {'image/svg+xml': '.svg', 'image/png': '.png', 'image/jpeg': '.jpg',
-                    'image/gif': '.gif', 'image/webp': '.webp'}
-
-# remote loads that are allowed to remain (URL -> reason)
-ALLOWED_REMOTE = {
-    # Material only loads this polyfill if the browser has no ResizeObserver
-    'https://unpkg.com/resize-observer-polyfill': 'fallback for browsers without ResizeObserver',
-}
-
-problems = []
-
-
-def problem(page, reason) -> None:
-    """Record a problem; all problems are reported at the end."""
-    problems.append(f'generate_docset.py: {page}: {reason}')
-
-
-class Loader(yaml.SafeLoader):
-    """YAML loader that tolerates the custom tags used in mkdocs.yml."""
-
-
-Loader.add_multi_constructor('', lambda loader, suffix, node: None)
-
-
-def walk_nav(items, groups=()):
-    """Yield (group titles, nav title or None, md path) for all nav leaves."""
-    for item in items:
-        if isinstance(item, str):
-            yield list(groups), None, item
-        elif isinstance(item, dict):
-            for title, value in item.items():
-                if isinstance(value, list):
-                    yield from walk_nav(value, groups + (str(title),))
-                else:
-                    yield list(groups), str(title), value
-
-
-def page_path(md_path) -> str:
-    """Map a markdown path to the HTML path of the rendered page."""
-    if md_path.endswith('/index.md'):
-        return md_path[:-len('index.md')] + 'index.html'
-    return md_path[:-len('.md')] + '/index.html'
-
-
-def read_page(md_path) -> str:
-    """Read a page (resolving a snippet include), return '' if it does not exist."""
-    try:
-        with open(os.path.join(PAGES, md_path), encoding='utf-8') as f:
-            text = f.read()
-        m = re.match(r'--8<-- "(.+)"\s*$', text)
-        if m:
-            with open(os.path.join(PAGES, m.group(1)), encoding='utf-8') as f:
-                text = f.read()
-        return text
-    except OSError:
-        return ''
-
-
-def clean(text) -> str:
-    """Strip tags and entities from a heading and normalize whitespace."""
-    text = text.replace('\\>', '\x00')  # escaped '>' is not the end of a tag
-    text = html.unescape(re.sub(r'</?[a-zA-Z][^>]*>', '', text)).replace('\x00', '>')
-    return re.sub(r'\s+', ' ', text).strip()
-
-
-def strip_fences(text) -> str:
-    """Remove fenced code blocks (their lines may start with '# ')."""
-    return re.sub(r'^(```|~~~).*?^\1[^\n]*$', '', text, flags=re.M | re.S)
-
-
-def get_h1(text):
-    """Return the cleaned first H1 of a page or None."""
-    body = strip_fences(text)
-    m = re.search(r'^# (.+)$', body, flags=re.M)
-    if m:
-        return clean(m.group(1))
-    m = re.search(r'<h1>(.*?)</h1>', body, flags=re.S)
-    return clean(m.group(1)) if m else None
-
-
-def split_top_level(text, seps=','):
-    """Split at separators that are not nested in <>, () or []."""
-    parts, depth, current = [], 0, ''
-    for c in text:
-        if c in '<([':
-            depth += 1
-        elif c in '>)]':
-            depth -= 1
-        if c in seps and depth <= 0:
-            parts.append(current)
-            current = ''
-        else:
-            current += c
-    parts.append(current)
-    return [p.strip() for p in parts if p.strip()]
-
-
-OPERATOR_SYMBOLS = ('<=>', '<<', '>>', '<=', '>=', '<', '>')
-
-
-def api_names(h1) -> list:
-    """Derive the entry names from the H1 of an api page."""
-    # hide the angle brackets of operators from the nesting detection
-    for i, sym in enumerate(OPERATOR_SYMBOLS):
-        h1 = h1.replace('operator' + sym, f'operator\x01{i}\x01')
-    names = []
-    for part in split_top_level(h1):
-        name = part.replace('\\', '').replace('nlohmann::', '')
-        name = re.sub(r'\x01(\d)\x01', lambda m: OPERATOR_SYMBOLS[int(m.group(1))], name)
-        # drop qualifiers like "operator<<(basic_json)", but keep "operator()"
-        if not name.endswith('operator()'):
-            name = re.sub(r'(?<=\w|[<>=!+\-*/\[\]])\([^()]*\)$', '', name)
-        if name not in names:
-            names.append(name)
-    return names
-
-
-def first_cpp_block(text):
-    """Return the first ```cpp block following the H1."""
-    m = re.search(r'^# .*?^```cpp\n(.*?)^```', text, flags=re.M | re.S)
-    return m.group(1) if m else None
-
-
-def api_type(name, decl):
-    """Determine the Dash entry type from name and declaration."""
-    parts = name.split('::')
-    last = parts[-1]
-    if name.startswith('operator""'):
-        return 'Literal'
-    if last.startswith('operator'):
-        return 'Operator'
-    if decl is None:
-        return None
-    if re.search(r'\benum\b', decl):
-        return 'Enum'
-    if re.search(r'^\s*(template\s*<.*>\s*)?(class|struct)\s+\w+\s*(final\b|[:{;<]|$)', decl, flags=re.M):
-        return 'Class'
-    if re.search(r'\busing\s+\w+\s*=', decl) or 'typedef' in decl:
-        return 'Type'
-    if len(parts) > 1 and last == parts[-2]:
-        return 'Constructor'
-    if last.startswith('~'):
-        return 'Method'
-    if re.search(r'\bstatic\b', decl) or len(parts) == 1 or parts[0] == 'std':
-        return 'Function'
-    return 'Method'
-
-
-def macro_names(h1) -> list:
-    """Split the H1 of a macro page into macro names."""
-    return [n.strip() for n in re.split(r'[,/]', h1) if n.strip()]
-
-
-def api_entries(md_path):
-    """Return the (name, type) pairs of an api page."""
-    if md_path in OVERRIDES:
-        return OVERRIDES[md_path]
-    if md_path == 'api/macros/index.md':
-        return [('Macros', 'Macro')]
-    text = read_page(md_path)
-    h1 = get_h1(text)
-    if not h1:
-        problem(md_path, 'no H1 found')
-        return []
-    if md_path.startswith('api/macros/'):
-        return [(n, 'Macro') for n in macro_names(h1)]
-    names = api_names(h1)
-    if not names:
-        problem(md_path, 'no names found')
-        return []
-    decl = first_cpp_block(text)
-    result = []
-    for name in names:
-        kind = api_type(name, decl)
-        if kind is None:
-            problem(md_path, f'no type determinable for {name}')
-        else:
-            result.append((name, kind))
-    return result
-
-
-def guide_entries(nav):
-    """Yield (name, type, md path) for all non-api nav pages."""
-    for groups, title, md_path in walk_nav(nav):
-        if md_path.startswith('api/') or md_path == 'index.md':
-            continue
-        if not md_path.endswith('.md'):
-            continue
-        groups = groups[1:]  # drop the top-level tab
-        if title is None:
-            title = get_h1(read_page(md_path))
-            if not title:
-                problem(md_path, 'no title found')
-                continue
-        # "Parsing: Parsing Untrusted Input" -> "Parsing: Untrusted Input"
-        if groups and title.startswith(groups[-1] + ' ') and title[len(groups[-1]) + 1:][:1].isupper():
-            title = title[len(groups[-1]) + 1:]
-        if md_path.endswith('/index.md') and groups and title == groups[-1]:
-            name = ': '.join(groups)
-        else:
-            name = ': '.join(groups + [title])
-        yield name, 'Guide', md_path
-
-
-def build_entries() -> list:
-    """Return the sorted list of (name, type, path) index entries."""
-    nav = load_mkdocs_yml()['nav']
-
-    entries = set()
-    for name, kind, md_path in guide_entries(nav):
-        entries.add((name, kind, page_path(md_path)))
-
-    api_root = os.path.join(PAGES, 'api')
-    on_disk = set()
-    for root, _, files in os.walk(api_root):
-        for file in files:
-            if file.endswith('.md'):
-                rel = os.path.relpath(os.path.join(root, file), PAGES)
-                on_disk.add(rel.replace(os.sep, '/'))
-    for _, _, md_path in walk_nav(nav):
-        if md_path.startswith('api/') and md_path not in on_disk:
-            problem(md_path, 'listed in nav but missing on disk')
-    for md_path in sorted(on_disk):
-        for name, kind in api_entries(md_path):
-            entries.add((name, kind, page_path(md_path)))
-    return sorted(entries)
-
-
-def write_index(entries, out) -> None:
-    """Write the entries into a SQLite search index."""
-    if os.path.exists(out):
-        os.remove(out)
-    con = sqlite3.connect(out)
-    con.execute('CREATE TABLE searchIndex(id INTEGER PRIMARY KEY, name TEXT, type TEXT, path TEXT)')
-    con.execute('CREATE UNIQUE INDEX anchor ON searchIndex (name, type, path)')
-    con.executemany('INSERT INTO searchIndex(name, type, path) VALUES (?, ?, ?)', entries)
-    con.commit()
-    con.close()
-
-
-def html_files(root):
-    """Yield all HTML files below root."""
-    for base, _, files in os.walk(root):
-        for file in files:
-            if file.endswith('.html'):
-                yield os.path.join(base, file)
-
-
-def read(path) -> str:
-    with open(path, encoding='utf-8') as f:
-        return f.read()
-
-
-def write(path, text) -> None:
-    with open(path, 'w', encoding='utf-8') as f:
-        f.write(text)
-
-
-def remove_source_widget(docs) -> None:
-    """Drop data-md-component=source so Material does not query api.github.com for the stars and version."""
-    pattern = re.compile(r'\sdata-md-component=(?:"source"|source\b)')
-    for path in html_files(docs):
-        text = read(path)
-        new = pattern.sub('', text)
-        if new != text:
-            write(path, new)
-
-
-def patch_titles(docs, entries) -> None:
-    """Strip the site name from all titles; use the index names where available."""
-    names = {}
-    for name, _, path in entries:
-        names.setdefault(path, []).append(name)
-    for file in html_files(docs):
-        rel = os.path.relpath(file, docs).replace(os.sep, '/')
-        text = read(file).replace(TITLE_SUFFIX, '</title>')
-        if rel in names:
-            title = html.escape(', '.join(names[rel]), quote=False)
-            text = re.sub(r'<title>.*?</title>', lambda _: f'<title>{title}</title>', text, count=1, flags=re.S)
-        write(file, text)
-
-
-IMG_RE = re.compile(r'<img\b[^>]*>', re.I)
-ATTR_RE = r'''(?:{0})\s*=\s*(?:"([^"]*)"|'([^']*)'|([^\s"'>]+))'''
-
-
-def attr(tag, name):
-    """Return the value of an attribute in a tag or None."""
-    m = re.search(r'(?<![\w-])' + ATTR_RE.format(name), tag, flags=re.I)
-    return next(g for g in m.groups() if g is not None) if m else None
-
-
-def is_remote(url) -> bool:
-    return re.match(r'(https?:)?//', url.strip(), flags=re.I) is not None
-
-
-def download(url, docs) -> str:
-    """Download url into assets/external and return the path relative to docs."""
-    u = urllib.parse.urlparse(url if not url.startswith('//') else 'https:' + url)
-    if u.scheme.lower() not in ('http', 'https'):
-        raise ValueError(f'not an http(s) URL: {url}')
-    req = urllib.request.Request(u.geturl(), headers={'User-Agent': USER_AGENT})
-    # (the scheme is checked above)
-    with urllib.request.urlopen(req, timeout=20) as r:  # nosec B310
-        data = r.read()
-        ctype = r.headers.get_content_type()
-    path = urllib.parse.unquote(u.path).lstrip('/')
-    ext = os.path.splitext(path)[1]
-    if u.query or not ext or path.endswith('/'):
-        digest = hashlib.sha1(url.encode(), usedforsecurity=False).hexdigest()[:12]
-        path = os.path.join(os.path.dirname(path), digest + CONTENT_TYPE_EXT.get(ctype, ext or '.bin'))
-    rel = os.path.normpath(os.path.join('assets', 'external', u.hostname, path))
-    out = os.path.join(docs, rel)
-    os.makedirs(os.path.dirname(out), exist_ok=True)
-    with open(out, 'wb') as f:
-        f.write(data)
-    return rel.replace(os.sep, '/')
-
-
-def localize_images(docs) -> None:
-    """Download remote images and rewrite their src; drop them on failure."""
-    cache = {}
-    for file in html_files(docs):
-        text = read(file)
-
-        def repl(m):
-            tag = m.group(0)
-            src = attr(tag, 'src')
-            if src is None or not is_remote(src):
-                return tag
-            if src not in cache:
-                try:
-                    cache[src] = download(src, docs)
-                except Exception as e:  # noqa: BLE001
-                    print(f'generate_docset.py: warning: cannot download {src}: {e}', file=sys.stderr)
-                    cache[src] = None
-            if cache[src] is None:
-                return attr(tag, 'alt') or ''
-            local = os.path.relpath(os.path.join(docs, cache[src]), os.path.dirname(file))
-            local = local.replace(os.sep, '/')
-            return re.sub(ATTR_RE.format('src'), lambda _: f'src="{local}"', tag, count=1, flags=re.I)
-
-        new = IMG_RE.sub(repl, text)
-        if new != text:
-            write(file, new)
-
-
-def load_mkdocs_yml() -> dict:
-    """Load mkdocs.yml, ignoring tags like !ENV and !!python/name."""
-    with open(MKDOCS_YML, encoding='utf-8') as f:
-        # (Loader is a yaml.SafeLoader)
-        return yaml.load(f, Loader=Loader)  # nosec B506
-
-
-def localize_site_urls(docs, site_url) -> None:
-    """Load assets that the theme's JavaScript references by absolute site URL from the docset.
-
-    The privacy plugin rewrites the mermaid loader to "<site_url>assets/external/unpkg.com/mermaid@11/...", so the
-    docset would fetch mermaid from the live site. __md_scope is the site root that Material defines in every page.
-    """
-    pattern = re.compile(r'"' + re.escape(site_url) + r'(assets/[^"]*)"')
-    for base, _, files in os.walk(docs):
-        for file in (f for f in files if f.endswith('.js')):
-            path = os.path.join(base, file)
-            text = read(path)
-            new = pattern.sub(r'new URL("\1",__md_scope).href', text)
-            if new != text:
-                write(path, new)
-
-
-def remote_loads(docs, site_url) -> list:
-    """Return 'file: url' strings for resources that would be loaded remotely."""
-    found = []
-    cdn = re.compile(r'https://(?:unpkg\.com|cdn\.jsdelivr\.net|cdnjs\.cloudflare\.com|'
-                     r'fonts\.googleapis\.com|fonts\.gstatic\.com)/[^\s"\'`)\\]*')
-    css_url = re.compile(r'url\(\s*["\']?((?:https?:)?//[^)"\']+)', re.I)
-    css_import = re.compile(r'@import\s+(?:url\(\s*)?["\']?((?:https?:)?//[^)"\'; ]+)', re.I)
-    for base, _, files in os.walk(docs):
-        for file in files:
-            path = os.path.join(base, file)
-            rel = os.path.relpath(path, docs)
-            urls = []
-            if file.endswith('.html'):
-                text = read(path)
-                for m in re.finditer(r'<[a-zA-Z][^>]*>', text):
-                    tag = m.group(0)
-                    for name in ('src', 'poster'):
-                        v = attr(tag, name)
-                        if v and is_remote(v):
-                            urls.append(v)
-                    v = attr(tag, 'srcset')
-                    if v:
-                        urls += [c.split()[0] for c in v.split(',') if c.strip() and is_remote(c.strip())]
-                    if re.match(r'<link\b', tag, flags=re.I):
-                        rel_attr = (attr(tag, 'rel') or '').lower()
-                        v = attr(tag, 'href')
-                        if v and is_remote(v) and re.search(r'stylesheet|icon|preload|modulepreload|manifest', rel_attr):
-                            urls.append(v)
-                urls += css_url.findall(text) + css_import.findall(text)
-            elif file.endswith('.css'):
-                text = read(path)
-                urls += css_url.findall(text) + css_import.findall(text)
-            elif file.endswith('.js'):
-                text = read(path)
-                urls += cdn.findall(text)
-                urls += re.findall(re.escape(site_url) + r'assets/[^\s"\'`)\\]*', text)
-            found += [f'{rel}: {u}' for u in urls if u not in ALLOWED_REMOTE]
-    return found
-
-
-def make_docset(site, out_dir) -> int:
-    entries = build_entries()
-    if problems:
-        print('\n'.join(problems), file=sys.stderr)
-        return 1
-    docset = os.path.join(out_dir, DOCSET)
-    docs = os.path.join(docset, 'Contents', 'Resources', 'Documents')
-    if os.path.exists(docset):
-        shutil.rmtree(docset)
-    shutil.copytree(site, docs)
-    for icon in ('icon.png', 'icon@2x.png'):
-        shutil.copy(os.path.join(HERE, icon), docset)
-    shutil.copy(os.path.join(HERE, 'Info.plist'), os.path.join(docset, 'Contents'))
-    write_index(entries, os.path.join(docset, 'Contents', 'Resources', 'docSet.dsidx'))
-
-    # patch CSS to hide navigation items and fix spacing
-    css = glob.glob(os.path.join(docs, 'assets', 'stylesheets', 'main.*.min.css'))
-    if len(css) != 1:
-        print(f'generate_docset.py: expected exactly one main.*.min.css, found {len(css)}', file=sys.stderr)
-        return 1
-    with open(css[0], 'a', encoding='utf-8') as f:
-        f.write(CSS_PATCH)
-
-    patch_titles(docs, entries)
-    remove_source_widget(docs)
-    for sitemap in glob.glob(os.path.join(docs, 'sitemap.*')):
-        os.remove(sitemap)
-
-    # make the docset self-contained
-    site_url = load_mkdocs_yml()['site_url']
-    localize_images(docs)
-    localize_site_urls(docs, site_url)
-    remote = remote_loads(docs, site_url)
-    if remote:
-        print('generate_docset.py: remote resources remain in the docset:', file=sys.stderr)
-        print('\n'.join('  ' + r for r in remote), file=sys.stderr)
-        return 1
-    return 0
-
-
-def make_tgz(out_dir) -> int:
-    docset = os.path.join(out_dir, DOCSET)
-    if not os.path.isdir(docset):
-        print(f'generate_docset.py: {docset} does not exist', file=sys.stderr)
-        return 1
-    with tarfile.open(os.path.join(out_dir, 'JSON_for_Modern_C++.tgz'), 'w:gz') as tar:
-        tar.add(docset, arcname=DOCSET, filter=lambda i: None if os.path.basename(i.name) == '.DS_Store' else i)
-    return 0
-
-
-def main() -> int:
-    parser = argparse.ArgumentParser(description=__doc__)
-    sub = parser.add_subparsers(dest='command', required=True)
-    sub.add_parser('list', help='print the index entries as TSV')
-    p = sub.add_parser('index', help='write the SQLite search index')
-    p.add_argument('out')
-    p = sub.add_parser('docset', help='build the docset from a built mkdocs site')
-    p.add_argument('site_dir')
-    p.add_argument('out_dir')
-    p = sub.add_parser('tgz', help='pack the docset into a tarball')
-    p.add_argument('out_dir')
-    args = parser.parse_args()
-
-    if args.command == 'docset':
-        return make_docset(args.site_dir, args.out_dir)
-    if args.command == 'tgz':
-        return make_tgz(args.out_dir)
-
-    entries = build_entries()
-    if problems:
-        print('\n'.join(problems), file=sys.stderr)
-        return 1
-    if args.command == 'list':
-        for entry in entries:
-            print('\t'.join(entry))
-    elif args.command == 'index':
-        write_index(entries, args.out)
-    return 0
-
-
-if __name__ == '__main__':
-    sys.exit(main())
@@ -17,7 +17,6 @@ build: style_check

 style_check:
 	@cd docs ; ../venv/bin/python3 ../scripts/check_structure.py
-	@venv/bin/python3 ../docset/generate_docset.py list > /dev/null

 # check that all Mermaid diagrams parse (needs Node.js)
 # This target is used in the CI (ci_test_documentation_mermaid).
@@ -233,6 +233,7 @@ Strong exception safety: if an exception occurs, the original value stays intact
 - documentation on [checked access](../../features/element_access/checked_access.md)
 - [`operator[]`](operator%5B%5D.md) for unchecked access by reference
 - [`value`](value.md) for access with default value
+- [basic_json_view::at](../basic_json_view/at.md) - the same access on a zero-copy view

 ## Version history

@@ -241,6 +242,4 @@ Strong exception safety: if an exception occurs, the original value stays intact
 3. Added in version 3.11.0. Fixed in version 3.13.0 to consistently accept `std::string_view`-convertible keys, as
   already supported by [`operator[]`](operator[].md), [`value`](value.md), [`find`](find.md), and other lookup
   functions.
-4. Added in version 2.0.0. Throws [`parse_error.109`](../../home/exceptions.md#jsonexceptionparse_error109) instead of
-[`out_of_range.404`](../../home/exceptions.md#jsonexceptionout_of_range404) for a one-character array index that is not
-a digit (e.g., `/x`) in version 3.13.0, as it already did for longer ones.
+4. Added in version 2.0.0.
@@ -58,6 +58,7 @@ Constant.
 ## See also

 - [front](front.md) to access the first element
+- [basic_json_view::back](../basic_json_view/back.md) - the same access on a zero-copy view

 ## Version history

@@ -44,6 +44,8 @@ Constant.
 - [rbegin](rbegin.md) returns a reverse iterator to the last element
 - [items](items.md) returns an iteration proxy to access keys and values during range-based for loops
 - [Iterators](../../features/iterators.md) - the article on iterators
+- [basic_json_view::begin](../basic_json_view/begin.md) - the same iteration on a zero-copy view (in document order,
+  not sorted by key)

 ## Version history

@@ -64,7 +64,18 @@ values of that type directly to a `basic_json` instance, and they will automatic
 rather than arrays:

 ```cpp
-using custom_json = nlohmann::ordered_json::with_binary_t<std::vector<std::byte>>;
+using custom_json = nlohmann::basic_json<
+    nlohmann::ordered_map,  // ObjectType
+    std::vector,            // ArrayType
+    std::string,            // StringType
+    bool,                   // BooleanType
+    std::int64_t,           // NumberIntegerType
+    std::uint64_t,          // NumberUnsignedType
+    double,                 // NumberFloatType
+    std::allocator,         // AllocatorType
+    nlohmann::adl_serializer,
+    std::vector<std::byte>  // Custom BinaryType
+>;

 std::vector<std::byte> data{std::byte{1}, std::byte{2}, std::byte{3}};
 custom_json j = data;  // Creates a binary value, not an array
@@ -42,6 +42,7 @@ Constant.
 - [cend](cend.md) returns a const iterator to one past the last element
 - [crbegin](crbegin.md) returns a const reverse iterator to the last element
 - [Iterators](../../features/iterators.md) - the article on iterators
+- [basic_json_view::cbegin](../basic_json_view/cbegin.md) - the same iteration on a zero-copy view

 ## Version history

@@ -9,10 +9,10 @@ enum class cbor_tag_handler_t
 };
 ```

-This enumeration is used in [`from_cbor`](from_cbor.md) and [`sax_parse`](sax_parse.md) to choose how to treat tags:
+This enumeration is used in the [`from_cbor`](from_cbor.md) function to choose how to treat tags:

 error
-:   report a parse error in case of a tag (the `from_cbor` overloads throw a `parse_error` exception by default)
+:   throw a `parse_error` exception in case of a tag

 ignore
 :   ignore tags
@@ -42,6 +42,7 @@ Constant.
 - [cbegin](cbegin.md) returns a const iterator to the first element
 - [crend](crend.md) returns a const reverse iterator to one before the first element
 - [Iterators](../../features/iterators.md) - the article on iterators
+- [basic_json_view::cend](../basic_json_view/cend.md) - the same iteration on a zero-copy view

 ## Version history

@@ -10,10 +10,6 @@ bool contains(KeyType&& key) const;

 // (3)
 bool contains(const json_pointer& ptr) const;
-
-// (4)
-template<typename T>
-bool contains(T) const = delete;
 ```

 1. Check whether an element exists in a JSON object with a key equivalent to `key`. If the element is not found or the 
@@ -21,9 +17,6 @@ bool contains(T) const = delete;
 2. See 1. This overload is only available if `KeyType` is comparable with `#!cpp typename object_t::key_type` and
   `#!cpp typename object_comparator_t::is_transparent` denotes a type.
 3. Check whether the given JSON pointer `ptr` can be resolved in the current JSON value.
-4. Deleted: this overload is only available if `T` is an integral type and is declared as deleted, so that a call with
-   an integer `key` (for example, `#!cpp j.contains(0)`) fails to compile. Otherwise, the integer literal `0` would convert to
-   a null `#!cpp const char*` and, from there, to the key type, causing undefined behavior at runtime.

 ## Template parameters

@@ -46,7 +39,6 @@ bool contains(T) const = delete;
   is not an object, `#!cpp false` is returned.
 2. See 1.
 3. `#!cpp true` if the JSON pointer can be resolved to a stored value, `#!cpp false` otherwise.
-4. Deleted; a call with an integral argument does not compile.

 ## Exception safety

@@ -57,7 +49,6 @@ Strong exception safety: if an exception occurs, the original value stays intact
 1. The function does not throw exceptions.
 2. The function does not throw exceptions.
 3. The function does not throw exceptions.
-4. Deleted; a call with an integral argument does not compile.

 ## Complexity

@@ -136,6 +127,7 @@ Logarithmic in the size of the JSON object.

 - [find](find.md) find a value in an object
 - [count](count.md) returns the number of occurrences of a key
+- [basic_json_view::contains](../basic_json_view/contains.md) - the same check on a zero-copy view

 ## Version history

@@ -7,19 +7,12 @@ size_type count(const typename object_t::key_type& key) const;
 // (2)
 template<typename KeyType>
 size_type count(KeyType&& key) const;
-
-// (3)
-template<typename T>
-size_type count(T) const = delete;
 ```

 1. Returns the number of elements with key `key`. If `ObjectType` is the default `std::map` type, the return value will
   always be `0` (`key` was not found) or `1` (`key` was found).
 2. See 1. This overload is only available if `KeyType` is comparable with `#!cpp typename object_t::key_type` and
   `#!cpp typename object_comparator_t::is_transparent` denotes a type.
-3. Deleted: this overload is only available if `T` is an integral type and is declared as deleted, so that a call with
-   an integer `key` (for example, `#!cpp j.count(0)`) fails to compile. Otherwise, the integer literal `0` would convert to
-   a null `#!cpp const char*` and, from there, to the key type, causing undefined behavior at runtime.

 ## Template parameters

@@ -87,6 +80,7 @@ Logarithmic in the size of the JSON object.

 - [find](find.md) find a value in an object
 - [contains](contains.md) checks whether a key exists
+- [basic_json_view::count](../basic_json_view/count.md) - the same check on a zero-copy view

 ## Version history

@@ -8,7 +8,7 @@ static basic_json diff(const basic_json& source,
 Creates a [JSON Patch](http://jsonpatch.com) so that value `source` can be changed into the value `target` by calling
 [`patch`](patch.md) function.

-For two JSON values `source` and `target`, the following code always yields `#!cpp true`:
+For two JSON values `source` and `target`, the following code yields always `#!cpp true`:
 ```cpp
 source.patch(diff(source, target)) == target;
 ```
@@ -27,7 +27,7 @@ a JSON patch to convert the `source` to `target`

 ## Exception safety

-Strong guarantee: `source` and `target` are never modified.
+Strong guarantee: if an exception is thrown, there are no changes in the JSON value.

 ## Complexity

@@ -62,6 +62,9 @@ Linear.

 ## Notes

+Floating-point numbers are written with the fewest digits that read back as the same value (for `#!cpp double`; see
+[number handling](../../features/types/number_handling.md#number-serialization)).
+
 Binary values are serialized as an object containing two keys:

 - "bytes": an array of bytes as integers
@@ -88,6 +91,8 @@ Binary values are serialized as an object containing two keys:

 - [to_string](to_string.md) returns a string representation of a JSON value
 - [operator<<](../operator_ltlt.md) serialize to stream
+- [`basic_json_view::dump`](../basic_json_view/dump.md) the corresponding function of `basic_json_view`, serializing
+  directly from a flat index without building a `basic_json` value
 - [Serialization](../../features/serialization.md) - the serialization article

 ## Version history
@@ -97,3 +102,5 @@ Binary values are serialized as an object containing two keys:
 - Error handlers added in version 3.4.0.
 - Serialization of binary values added in version 3.8.0.
 - Error handler `keep` added in version 3.13.0.
+- Doubles are written with the shortest digits (Żmij instead of Grisu2) since version 3.13.0; about 0.1% of doubles are
+  written differently, most of them with fewer digits.
@@ -64,6 +64,7 @@ itself is empty which is `#!cpp false` in the case of a string.

 - [size](size.md) returns the number of elements
 - [clear](clear.md) clears the content and resets the value to the default value
+- [basic_json_view::empty](../basic_json_view/empty.md) - the same check on a zero-copy view

 ## Version history

@@ -43,6 +43,7 @@ Constant.
 - [cend](cend.md) returns a const iterator to one past the last element
 - [rend](rend.md) returns a reverse iterator to one before the first element
 - [Iterators](../../features/iterators.md) - the article on iterators
+- [basic_json_view::end](../basic_json_view/end.md) - the same iteration on a zero-copy view

 ## Version history

@@ -37,8 +37,8 @@ ignore
 :   ignore invalid UTF-8 sequences; all valid bytes are copied to the output unchanged, and invalid bytes are dropped

 keep
-:   keep invalid UTF-8 sequences unchanged; only meaningful for the binary formats mentioned above, since
-    [`dump`](dump.md) itself must produce text, and `keep` there writes the ill-formed bytes to the output as is, so the
+:   keep invalid UTF-8 sequences unchanged; only meaningful for the binary formats mentioned above, since [`dump`]
+    (dump.md) itself must produce text, and `keep` there writes the ill-formed bytes to the output as is, so the
    result is then not valid UTF-8 (but still equals the input bytes exactly, including around any well-formed
    characters, which are still escaped as usual)

@@ -10,21 +10,12 @@ template<typename KeyType>
 iterator find(KeyType&& key);
 template<typename KeyType>
 const_iterator find(KeyType&& key) const;
-
-// (3)
-template<typename T>
-iterator find(T) = delete;
-template<typename T>
-const_iterator find(T) const = delete;
 ```

 1. Finds an element in a JSON object with a key equivalent to `key`. If the element is not found or the
   JSON value is not an object, `end()` is returned.
 2. See 1. This overload is only available if `KeyType` is comparable with `#!cpp typename object_t::key_type` and
   `#!cpp typename object_comparator_t::is_transparent` denotes a type.
-3. Deleted: this overload is only available if `T` is an integral type and is declared as deleted, so that a call with
-   an integer `key` (for example, `#!cpp j.find(0)`) fails to compile. Otherwise, the integer literal `0` would convert to
-   a null `#!cpp const char*` and, from there, to the key type, causing undefined behavior at runtime.

 ## Template parameters

@@ -93,6 +84,7 @@ Logarithmic in the size of the JSON object.

 - [count](count.md) returns the number of occurrences of a key
 - [contains](contains.md) checks whether a key exists
+- [basic_json_view::find](../basic_json_view/find.md) - the same lookup on a zero-copy view

 ## Version history

@@ -120,13 +120,3 @@ Linear in the size of the input.
 - Extended container support (1) to include types with lvalue-only ADL `begin`/`end` (matching `std::begin`/`std::end` semantics) in version 3.13.0.
 - Extended overload (2) to accept heterogeneous iterator+sentinel pairs (C++20 ranges support) in version 3.13.0.
 - Added `error_handler` parameter in version 3.13.0.
-
-!!! warning "Deprecation"
-
-    - Overload (2) replaces calls to `from_bjdata` with a pointer and a length as first two parameters, which has been
-      deprecated in version 3.13.0. In version 4.0.0, this overload
-      will be deleted (`= delete`) rather than removed. Please replace all calls like
-      `#!cpp from_bjdata(ptr, len, ...);` with `#!cpp from_bjdata(ptr, ptr+len, ...);`.
-
-    You should be warned by your compiler with a `-Wdeprecated-declarations` warning if you are using a deprecated
-    function.
@@ -106,13 +106,3 @@ Linear in the size of the input.
 ## Version history

 - Added in version 3.13.0.
-
-!!! warning "Deprecation"
-
-    - Overload (2) replaces calls to `from_bon8` with a pointer and a length as first two parameters, which has been
-      deprecated in version 3.13.0. In version 4.0.0, this overload
-      will be deleted (`= delete`) rather than removed. Please replace all calls like
-      `#!cpp from_bon8(ptr, len, ...);` with `#!cpp from_bon8(ptr, ptr+len, ...);`.
-
-    You should be warned by your compiler with a `-Wdeprecated-declarations` warning if you are using a deprecated
-    function.
@@ -126,8 +126,7 @@ Linear in the size of the input.
 !!! warning "Deprecation"

    - Overload (2) replaces calls to `from_bson` with a pointer and a length as first two parameters, which has been
-      deprecated in version 3.8.0. In version 4.0.0, this overload
-      will be deleted (`= delete`) rather than removed. Please replace all calls like
+      deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
      `#!cpp from_bson(ptr, len, ...);` with `#!cpp from_bson(ptr, ptr+len, ...);`.
    - Overload (2) replaces calls to `from_bson` with a pair of iterators as their first parameter, which has been
      deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
@@ -135,8 +135,7 @@ Linear in the size of the input.
 !!! warning "Deprecation"

    - Overload (2) replaces calls to `from_cbor` with a pointer and a length as first two parameters, which has been
-      deprecated in version 3.8.0. In version 4.0.0, this overload
-      will be deleted (`= delete`) rather than removed. Please replace all calls like
+      deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
      `#!cpp from_cbor(ptr, len, ...);` with `#!cpp from_cbor(ptr, ptr+len, ...);`.
    - Overload (2) replaces calls to `from_cbor` with a pair of iterators as their first parameter, which has been
      deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
@@ -127,8 +127,7 @@ Linear in the size of the input.
 !!! warning "Deprecation"

    - Overload (2) replaces calls to `from_msgpack` with a pointer and a length as first two parameters, which has been
-      deprecated in version 3.8.0. In version 4.0.0, this overload
-      will be deleted (`= delete`) rather than removed. Please replace all calls like
+      deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
      `#!cpp from_msgpack(ptr, len, ...);` with `#!cpp from_msgpack(ptr, ptr+len, ...);`.
    - Overload (2) replaces calls to `from_msgpack` with a pair of iterators as their first parameter, which has been
      deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
@@ -125,8 +125,7 @@ Linear in the size of the input.
 !!! warning "Deprecation"

    - Overload (2) replaces calls to `from_ubjson` with a pointer and a length as first two parameters, which has been
-      deprecated in version 3.8.0. In version 4.0.0, this overload
-      will be deleted (`= delete`) rather than removed. Please replace all calls like
+      deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
      `#!cpp from_ubjson(ptr, len, ...);` with `#!cpp from_ubjson(ptr, ptr+len, ...);`.
    - Overload (2) replaces calls to `from_ubjson` with a pair of iterators as their first parameter, which has been
      deprecated in version 3.8.0. This overload will be removed in version 4.0.0. Please replace all calls like
@@ -51,6 +51,7 @@ Constant.
 ## See also

 - [back](back.md) to access the last element
+- [basic_json_view::front](../basic_json_view/front.md) - the same access on a zero-copy view

 ## Version history

@@ -183,6 +183,8 @@ overload (3).
 - [get_ref](get_ref.md) get a reference to the stored value
 - [operator ValueType](operator_ValueType.md) get a value via implicit conversion
 - [Converting values](../../features/conversions.md) - the type conversions article
+- [basic_json_view::get](../basic_json_view/get.md) - the same conversion on a zero-copy view (many types are
+  converted without ever building a `basic_json` value)

 ## Version history

@@ -61,6 +61,8 @@ Constant.
 ## See also

 - [get_ptr()](get_ptr.md) get a pointer value
+- [basic_json_view::get_string](../basic_json_view/get_string.md) - the closest counterpart on a zero-copy view: a
+  string without a copy, but as a view rather than a reference to a value that must already exist

 ## Version history

@@ -72,6 +72,7 @@ Depends on the `json_serializer<ValueType>::from_json()` implementation.
 - [get_ref](get_ref.md) get a reference to the stored value
 - [get_ptr](get_ptr.md) get a pointer to the stored value
 - [Converting values](../../features/conversions.md) - the type conversions article
+- [basic_json_view::get_to](../basic_json_view/get_to.md) - the same conversion on a zero-copy view

 ## Version history

@@ -109,9 +109,6 @@ The class satisfies the following concept requirements:
 - **initializer_list_t** - type for initializer lists of `basic_json` values
 - [**input_format_t**](input_format_t.md) - type to choose the format to parse
 - [**json_sax_t**](../json_sax/index.md) - type for SAX events
- [**with_object_t, with_array_t, with_string_t, with_boolean_t, with_integers_t, with_float_t, with_allocator_t,
-  with_json_serializer_t, with_binary_t, with_base_class_t**](with_t.md) - types to create a `basic_json` type with
-  one (or two) replaced template parameters

 ### Exceptions

@@ -40,6 +40,7 @@ Constant.
 - [is_structured](is_structured.md) checks whether the JSON value is structured (array or object)
 - [type](type.md) returns the type of the JSON value
 - [array_t](array_t.md) the type used to store JSON arrays
+- [basic_json_view::is_array](../basic_json_view/is_array.md) - the same check on a zero-copy view

 ## Version history

@@ -39,6 +39,7 @@ Constant.
 - [is_primitive](is_primitive.md) checks whether the JSON value is primitive
 - [binary_t](binary_t.md) the type used to store binary values
 - [get_binary](get_binary.md) returns a reference to the stored binary value
+- [basic_json_view::is_binary](../basic_json_view/is_binary.md) - the same check on a zero-copy view

 ## Version history

@@ -38,6 +38,7 @@ Constant.

 - [boolean_t](boolean_t.md) the type used to store JSON booleans
 - [is_primitive](is_primitive.md) checks whether the JSON value is primitive
+- [basic_json_view::is_boolean](../basic_json_view/is_boolean.md) - the same check on a zero-copy view

 ## Version history

@@ -85,6 +85,11 @@ with `allow_exceptions` set to `#!cpp false`: a parse error then yields a discar
    --8<-- "examples/is_discarded__parse.output"
    ```

+## See also
+
+- [basic_json_view::is_discarded](../basic_json_view/is_discarded.md) - the corresponding check on a zero-copy view,
+  which is `#!cpp true` if the view refers to no value
+
 ## Version history

 - Added in version 1.0.0.
@@ -40,6 +40,7 @@ Constant.
 - [is_object](is_object.md) checks whether the JSON value is an object
 - [type](type.md) returns the type of the JSON value
 - [value_t](value_t.md) the enumeration of JSON types
+- [basic_json_view::is_null](../basic_json_view/is_null.md) - the same check on a zero-copy view

 ## Version history

@@ -49,6 +49,7 @@ constexpr bool is_number() const noexcept
 - [is_number_integer()](is_number_integer.md) check if the value is an integer or unsigned integer number
 - [is_number_unsigned()](is_number_unsigned.md) check if the value is an unsigned integer number
 - [is_number_float()](is_number_float.md) check if the value is a floating-point number
+- [basic_json_view::is_number](../basic_json_view/is_number.md) - the same check on a zero-copy view

 ## Version history

@@ -40,6 +40,7 @@ Constant.
 - [is_number()](is_number.md) check if the value is a number
 - [is_number_integer()](is_number_integer.md) check if the value is an integer or unsigned integer number
 - [is_number_unsigned()](is_number_unsigned.md) check if the value is an unsigned integer number
+- [basic_json_view::is_number_float](../basic_json_view/is_number_float.md) - the same check on a zero-copy view

 ## Version history

@@ -40,6 +40,7 @@ Constant.
 - [is_number()](is_number.md) check if the value is a number
 - [is_number_unsigned()](is_number_unsigned.md) check if the value is an unsigned integer number
 - [is_number_float()](is_number_float.md) check if the value is a floating-point number
+- [basic_json_view::is_number_integer](../basic_json_view/is_number_integer.md) - the same check on a zero-copy view

 ## Version history

@@ -40,6 +40,7 @@ Constant.
 - [is_number()](is_number.md) check if the value is a number
 - [is_number_integer()](is_number_integer.md) check if the value is an integer or unsigned integer number
 - [is_number_float()](is_number_float.md) check if the value is a floating-point number
+- [basic_json_view::is_number_unsigned](../basic_json_view/is_number_unsigned.md) - the same check on a zero-copy view

 ## Version history

@@ -40,6 +40,7 @@ Constant.
 - [is_structured](is_structured.md) checks whether the JSON value is structured (array or object)
 - [type](type.md) returns the type of the JSON value
 - [object_t](object_t.md) the type used to store JSON objects
+- [basic_json_view::is_object](../basic_json_view/is_object.md) - the same check on a zero-copy view

 ## Version history

@@ -62,6 +62,7 @@ This library extends primitive types to binary types, because binary types are r
 - [is_boolean()](is_boolean.md) returns whether the JSON value is a boolean
 - [is_number()](is_number.md) returns whether the JSON value is a number
 - [is_binary()](is_binary.md) returns whether the JSON value is a binary array
+- [basic_json_view::is_primitive](../basic_json_view/is_primitive.md) - the same check on a zero-copy view

 ## Version history

@@ -39,6 +39,7 @@ Constant.
 - [is_primitive](is_primitive.md) checks whether the JSON value is primitive
 - [type](type.md) returns the type of the JSON value
 - [string_t](string_t.md) the type used to store JSON strings
+- [basic_json_view::is_string](../basic_json_view/is_string.md) - the same check on a zero-copy view

 ## Version history

@@ -57,6 +57,7 @@ Note that though strings are containers in C++, they are treated as primitive va
 - [is_primitive()](is_primitive.md) returns whether JSON value is primitive
 - [is_array()](is_array.md) returns whether the value is an array
 - [is_object()](is_object.md) returns whether the value is an object
+- [basic_json_view::is_structured](../basic_json_view/is_structured.md) - the same check on a zero-copy view

 ## Version history

@@ -99,6 +99,8 @@ When iterating over an array, `key()` will return the index of the element as st

 - [begin](begin.md) returns an iterator to the first element
 - [end](end.md) returns an iterator to one past the last element
+- [basic_json_view::items](../basic_json_view/items.md) - the same range on a zero-copy view (`#!cpp const auto`,
+  not `#!cpp const auto&`: items are produced on the fly)

 ## Version history

@@ -62,5 +62,5 @@ same name. Hidden members remain accessible via [`as_base_class`](as_base_class.

 ## Version history

- Added in version 3.11.3.
+- Added in version 3.12.0.
 - Made a public member type in version 3.13.0; it was private before, so it could not be named outside the class.
@@ -23,9 +23,10 @@ type to use.
 ## Template parameters

 `NumberFloatType`
-:   the type to store floating-point numbers. Parsing and serialization are implemented in terms of
-    `#!cpp std::strtof`/`#!cpp std::strtod`/`#!cpp std::strtold` and `#!cpp std::snprintf`, so the type must be
-    `#!cpp float`, `#!cpp double`, or `#!cpp long double`. The
+:   the type to store floating-point numbers. The parser converts `#!cpp float`, `#!cpp double`, and a
+    `#!cpp long double` that is IEEE 754 binary64 itself and other `#!cpp long double` formats with
+    `#!cpp std::from_chars` or `#!cpp std::strtold`, and serialization falls back to `#!cpp std::snprintf`, so the
+    type must be `#!cpp float`, `#!cpp double`, or `#!cpp long double`. The
    [binary formats](../../features/binary_formats/index.md) additionally require `#!cpp float` or `#!cpp double`,
    because they have no encoding for `#!cpp long double`. See
    [Template Parameter Requirements](../../features/types/template_parameters.md#numberfloattype).
@@ -55,10 +56,6 @@ This implementation does exactly follow this approach, as it uses double precisi
 smaller than `-1.79769313486232e+308` and values greater than `1.79769313486232e+308` will be stored as NaN internally
 and be serialized to `null`.

-During deserialization (from JSON text or any of the binary formats), a finite number that does not fit into
-`number_float_t` is rejected with [`out_of_range.406`](../../home/exceptions.md#jsonexceptionout_of_range406), for
-example a double-precision number in a binary format when `number_float_t` is `#!cpp float`.
-
 ### Storage

 Floating-point number values are stored directly inside a `basic_json` type.
@@ -47,9 +47,8 @@ With the default values for `NumberIntegerType` (`std::int64_t`), the default va

 When the default type is used, the maximal integer number that can be stored is `9223372036854775807` (INT64_MAX) and
 the minimal integer number that can be stored is `-9223372036854775808` (INT64_MIN). Integer numbers that are out of
-range will yield over/underflow when used in a constructor. During deserialization (from JSON text or any of the binary
-formats), too large or small integer numbers will automatically be stored as [`number_unsigned_t`](number_unsigned_t.md)
-or [`number_float_t`](number_float_t.md).
+range will yield over/underflow when used in a constructor. During deserialization, too large or small integer numbers
+will automatically be stored as [`number_unsigned_t`](number_unsigned_t.md) or [`number_float_t`](number_float_t.md).

 [RFC 8259](https://tools.ietf.org/html/rfc8259) further states:
 > Note that when such software is used, numbers that are integers and are in the range [-2<sup>53</sup>+1, 2<sup>53</sup>-1] are
@@ -48,9 +48,8 @@ With the default values for `NumberUnsignedType` (`std::uint64_t`), the default

 When the default type is used, the maximal integer number that can be stored is `18446744073709551615` (UINT64_MAX) and
 the minimal integer number that can be stored is `0`. Integer numbers that are out of range will yield over/underflow
-when used in a constructor. During deserialization (from JSON text or any of the binary formats), too large or small
-integer numbers will automatically be stored as [`number_integer_t`](number_integer_t.md) or
-[`number_float_t`](number_float_t.md).
+when used in a constructor. During deserialization, too large or small integer numbers will automatically be stored
+as [`number_integer_t`](number_integer_t.md) or [`number_float_t`](number_float_t.md).

 [RFC 8259](https://tools.ietf.org/html/rfc8259) further states:
 > Note that when such software is used, numbers that are integers and are in the range [-2<sup>53</sup>+1, 2<sup>53</sup>-1] are
@@ -275,6 +275,8 @@ Strong exception safety: if an exception occurs, the original value stays intact
 - documentation on [runtime assertions](../../features/assertions.md)
 - see [`at`](at.md) for access by reference with range checking
 - see [`value`](value.md) for access with default value
+- [basic_json_view::operator[]](../basic_json_view/operator%5B%5D.md) - the same access on a zero-copy view (always
+  returns a discarded view instead of assuming undefined behavior)

 ## Version history

@@ -286,6 +288,4 @@ Strong exception safety: if an exception occurs, the original value stays intact
 3. Added in version 3.11.0. Fixed in version 3.13.0 to consistently accept `std::string_view`-convertible keys, as
   already supported by [`at`](at.md), [`value`](value.md), [`find`](find.md), and other lookup functions.
 4. Added in version 2.0.0. A missing array index in the const version is guarded by a runtime assertion since
-   version 3.13.0. Throws [`parse_error.109`](../../home/exceptions.md#jsonexceptionparse_error109) instead of
-[`out_of_range.404`](../../home/exceptions.md#jsonexceptionout_of_range404) for a one-character array index that is not
-a digit (e.g., `/x`) in version 3.13.0, as it already did for longer ones.
+   version 3.13.0.
@@ -171,6 +171,8 @@ Linear.

 - [operator!=](operator_ne.md) compare for inequality
 - [operator<=>](operator_spaceship.md) comparison: 3-way (C++20)
+- [basic_json_view::operator==](../basic_json_view/operator_eq.md) - the same comparison on a zero-copy view, without
+  building a `basic_json` value for it

 ## Version history

@@ -95,6 +95,8 @@ Linear.

 - [operator==](operator_eq.md) comparison: equal
 - [operator<=>](operator_spaceship.md) comparison: 3-way (C++20)
+- [basic_json_view::operator!=](../basic_json_view/operator_ne.md) - the same comparison on a zero-copy view, without
+  building a `basic_json` value for it

 ## Version history

@@ -112,6 +112,3 @@ is thrown. In any case, the original value is not changed: the patch is applied
  location has a non-object/non-array parent in version 3.13.0.
 - Added [`out_of_range.414`](../../home/exceptions.md#jsonexceptionout_of_range414) and rejected a "move" operation whose "from" location is a proper
  prefix of its "path" location instead of silently producing a corrupted result in version 3.13.0.
- Throws [`parse_error.109`](../../home/exceptions.md#jsonexceptionparse_error109) instead of
-  [`out_of_range.404`](../../home/exceptions.md#jsonexceptionout_of_range404) for a one-character array index that is
-  not a digit (e.g., `/x`) in version 3.13.0, as it already did for longer ones.
@@ -110,6 +110,3 @@ function throws an exception.
  location has a non-object/non-array parent in version 3.13.0.
 - Added [`out_of_range.414`](../../home/exceptions.md#jsonexceptionout_of_range414) and rejected a "move" operation whose "from" location is a proper
  prefix of its "path" location instead of silently producing a corrupted result in version 3.13.0.
- Throws [`parse_error.109`](../../home/exceptions.md#jsonexceptionparse_error109) instead of
-  [`out_of_range.404`](../../home/exceptions.md#jsonexceptionout_of_range404) for a one-character array index that is
-  not a digit (e.g., `/x`) in version 3.13.0, as it already did for longer ones.
@@ -8,8 +8,7 @@ static bool sax_parse(InputType&& i,
                      input_format_t format = input_format_t::json,
                      const bool strict = true,
                      const bool ignore_comments = false,
-                      const bool ignore_trailing_commas = false,
-                      const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error);
+                      const bool ignore_trailing_commas = false);

 // (2)
 template<class IteratorType, class SAX, class SentinelType = IteratorType>
@@ -18,14 +17,13 @@ static bool sax_parse(IteratorType first, SentinelType last,
                      input_format_t format = input_format_t::json,
                      const bool strict = true,
                      const bool ignore_comments = false,
-                      const bool ignore_trailing_commas = false,
-                      const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error);
+                      const bool ignore_trailing_commas = false);
 ```

 Read from input and generate SAX events

 1. Read from a compatible input.
-2. Read from a pair of character iterators, or an iterator and a sentinel of a different type (C++20 ranges support).
+2. Read from a pair of character iterators, or an iterator and a sentinel of a different type (C++20 ranges support)
    
    The value_type of the iterator must be an integral type with a size of 1, 2, or 4 bytes, which will be interpreted
    respectively as UTF-8, UTF-16, and UTF-32. If `SentinelType` differs from `IteratorType`, it must be comparable to
@@ -84,10 +82,6 @@ The SAX event lister must follow the interface of [`json_sax`](../json_sax/index
 :   whether trailing commas in arrays or objects should be ignored and treated like whitespace (`#!cpp true`) or yield a parse error
    (`#!cpp false`); (optional, `#!cpp false` by default)

-`tag_handler` (in)
-:   how to handle CBOR tags; see [`cbor_tag_handler_t`](cbor_tag_handler_t.md). Ignored for formats other than CBOR
-    (optional, `cbor_tag_handler_t::error` by default).
-
 `first` (in)
 :   iterator to the start of a character range

@@ -143,7 +137,6 @@ A UTF-8 byte order mark is silently ignored.
 - Added in version 3.2.0.
 - Ignoring comments via `ignore_comments` added in version 3.9.0.
 - Added `ignore_trailing_commas` in version 3.13.0.
- Added `tag_handler` in version 3.13.0.
 - Extended container support (1) to include types with lvalue-only ADL `begin`/`end` (matching `std::begin`/`std::end` semantics) in version 3.13.0.
 - Extended overload (2) to accept heterogeneous iterator+sentinel pairs (C++20 ranges support) in version 3.13.0.
 - `JSON_PRECISE_STREAM_POSITION` added in version 3.13.0 to optionally leave a `#!cpp std::istream` positioned right
@@ -55,6 +55,7 @@ JSON value which is `1` in the case of a string.

 - [empty](empty.md) checks whether the JSON value has no elements
 - [max_size](max_size.md) returns the maximum possible number of elements
+- [basic_json_view::size](../basic_json_view/size.md) - the same function on a zero-copy view

 ## Version history

@@ -7,14 +7,8 @@ namespace std {
 ```

 Return a hash value for a JSON object. The hash function tries to rely on `std::hash` where possible. Furthermore, the
-type of the JSON value is taken into account, so `#!json null`, `#!cpp false`, and numbers may hash differently from
-each other. Numbers that compare equal under [`operator==`](operator_eq.md) always hash equally, regardless of
-whether they are stored as signed integer, unsigned integer, or floating-point number.
-
-Numbers are hashed by their value converted to `number_float_t`. Converting an integer to `number_float_t` therefore
-keeps its hash, but converting a floating-point number to an integer type is lossy and can change it: `#!cpp 0.5`
-converts to `#!cpp 0`, which need not have the same hash. Unequal numbers can also share a hash value, for example two
-large integers that convert to the same `number_float_t`.
+type of the JSON value is taken into account to have different hash values for `#!json null`, `#!cpp 0`, `#!cpp 0U`, and
+`#!cpp false`, etc.

 ## Examples

@@ -32,8 +26,7 @@ large integers that convert to the same `number_float_t`.
    --8<-- "examples/std_hash.output"
    ```

-    The hash values shown are examples only. They depend on the platform, the compiler, and the compiler version, and
-    they can change between versions of this library. Do not persist them or rely on specific values.
+    Note the output is platform-dependent.

 ## See also

@@ -43,5 +36,3 @@ large integers that convert to the same `number_float_t`.

 - Added in version 1.0.0.
 - Extended for arbitrary basic_json types in version 3.10.5.
- Numbers that compare equal hash equally since version 3.13.0; before, `#!cpp 0`, `#!cpp 0U`, and `#!cpp 0.0` had
-  different hash values.
@@ -68,8 +68,6 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 - Throws [type_error.316](../../home/exceptions.md#jsonexceptiontype_error316) if a string or object key in `j` is
  not valid UTF-8 and `error_handler` is `strict` (the default only if
  [`JSON_STRICT_BINARY_UTF8`](../macros/json_strict_binary_utf8.md) is enabled)
- Throws [type_error.321](../../home/exceptions.md#jsonexceptiontype_error321) if `j` or a value nested in it is
-  discarded; example: `"cannot serialize discarded value to BJData"`

 ## Complexity

@@ -121,8 +119,4 @@ Linear in the size of the JSON value `j`.
 - BJData version parameter (for draft3 binary encoding) added in version 3.12.0.
 - Added `error_handler` parameter in version 3.13.0. Its default, `keep`, writes the bytes of a string or object key
  that is not valid UTF-8 unchanged, as before; `strict` (the default if
-  [`JSON_STRICT_BINARY_UTF8`](../macros/json_strict_binary_utf8.md) is enabled) throws `type_error.316`.
- Throws `type_error.321` for a discarded value since version 3.13.0; previously, a discarded value nested in an
-  array or object was silently skipped, producing invalid BJData.
- Writes unsigned integers wider than 64 bits as high-precision numbers since version 3.13.0; previously, they were
-  silently truncated to 64 bits.
+  [`JSON_STRICT_BINARY_UTF8`](../macros/json_strict_binary_utf8.md) is enabled) throws `type_error.316`.
@@ -37,13 +37,10 @@ With (2), the bytes written before the exception remain in the output adapter.

 ## Exceptions

- Throws [out_of_range.407](../../home/exceptions.md#jsonexceptionout_of_range407) if `j` contains an integer outside
-  the range of int64 (an unsigned integer above 9223372036854775807, or, with a number type wider than 64 bits, any
-  integer beyond int64), which BON8 cannot represent
+- Throws [out_of_range.407](../../home/exceptions.md#jsonexceptionout_of_range407) if `j` contains an unsigned integer
+  above 9223372036854775807, which BON8 cannot represent
 - Throws [type_error.316](../../home/exceptions.md#jsonexceptiontype_error316) if `j` contains a string that is not
  valid UTF-8
- Throws [type_error.321](../../home/exceptions.md#jsonexceptiontype_error321) if `j` or a value nested in it is
-  discarded; example: `"cannot serialize discarded value to BON8"`

 ## Complexity

@@ -47,10 +47,6 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va

 - Throws [`type_error.317`](../../home/exceptions.md#jsonexceptiontype_error317) if the top-level type of the JSON value
  is not an object; example: `"to serialize to BSON, top-level type must be object, but is string"`
- Throws [`out_of_range.407`](../../home/exceptions.md#jsonexceptionout_of_range407) if `j` contains a signed integer
-  outside the range of int64 or an unsigned integer outside the range of uint64, which is only possible with a number
-  type wider than 64 bits; example:
-  `"integer number 9223372036854775808 cannot be represented by BSON as it does not fit int64"`
 - Throws [`out_of_range.409`](../../home/exceptions.md#jsonexceptionout_of_range409) if a key in the JSON object contains
  a null byte (code point U+0000); example: `"BSON key cannot contain code point U+0000 (at byte 2)"`
 - Throws [`out_of_range.412`](../../home/exceptions.md#jsonexceptionout_of_range412) if the length of a document, array,
@@ -62,9 +58,6 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 - Throws [type_error.316](../../home/exceptions.md#jsonexceptiontype_error316) if a string or object key is
  not valid UTF-8 and `error_handler` is `strict` (the default only if
  [`JSON_STRICT_BINARY_UTF8`](../macros/json_strict_binary_utf8.md) is enabled)
- Throws [type_error.321](../../home/exceptions.md#jsonexceptiontype_error321) if a value nested in `j` is discarded
-  (the top-level value itself is covered by `type_error.317` above, since it must be an object); example:
-  `"cannot serialize discarded value to BSON"`

 ## Complexity

@@ -117,11 +110,7 @@ pass before anything is written.
 - Throws `out_of_range.412` and `out_of_range.415` since version 3.13.0.
 - Linear in the size of `j`, and no longer limited by the call stack for deeply nested values, since version 3.13.0.
 - `out_of_range.415` is now detected before anything is written, like the other exceptions above, since version 3.13.0.
- Throws `type_error.321` for a discarded value nested in `j` since version 3.13.0; previously, it was silently
-  skipped, producing a document whose declared size did not match what was actually written.
 - Added `error_handler` parameter in version 3.13.0. Its default, `keep`, writes the bytes of a string or object key
  that is not valid UTF-8 unchanged, as before; `strict` (the default if
  [`JSON_STRICT_BINARY_UTF8`](../macros/json_strict_binary_utf8.md) is enabled) throws `type_error.316` before anything
  is written.
- Throws `out_of_range.407` for integers that do not fit 64 bits since version 3.13.0; previously, integers of a
-  number type wider than 64 bits were silently truncated.
@@ -46,14 +46,9 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va

 ## Exceptions

- Throws [`out_of_range.407`](../../home/exceptions.md#jsonexceptionout_of_range407) if `j` contains an integer
-  outside [-2^64, 2^64-1], which is only possible with a number type wider than 64 bits; example:
-  `"integer number 18446744073709551616 cannot be represented by CBOR as it does not fit [-2^64, 2^64-1]"`
 - Throws [type_error.316](../../home/exceptions.md#jsonexceptiontype_error316) if a string or object key in `j` is
  not valid UTF-8 and `error_handler` is `strict` (the default only if
  [`JSON_STRICT_BINARY_UTF8`](../macros/json_strict_binary_utf8.md) is enabled)
- Throws [type_error.321](../../home/exceptions.md#jsonexceptiontype_error321) if `j` or a value nested in it is
-  discarded; example: `"cannot serialize discarded value to CBOR"`

 ## Complexity

@@ -91,7 +86,3 @@ Linear in the size of the JSON value `j`.
 - Added `error_handler` parameter in version 3.13.0. Its default, `keep`, writes the bytes of a string or object key
  that is not valid UTF-8 unchanged, as before; `strict` (the default if
  [`JSON_STRICT_BINARY_UTF8`](../macros/json_strict_binary_utf8.md) is enabled) throws `type_error.316`.
- Throws `type_error.321` for a discarded value since version 3.13.0; previously, a discarded value nested in an
-  array or object was silently skipped, producing invalid CBOR.
- Throws `out_of_range.407` for integers that do not fit 64 bits since version 3.13.0; previously, integers of a
-  number type wider than 64 bits were silently truncated.
@@ -46,9 +46,6 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va

 ## Exceptions

- Throws [`out_of_range.407`](../../home/exceptions.md#jsonexceptionout_of_range407) if `j` contains an integer
-  outside [-2^63, 2^64-1], which is only possible with a number type wider than 64 bits; example:
-  `"integer number 18446744073709551616 cannot be represented by MessagePack as it does not fit [-2^63, 2^64-1]"`
 - Throws [`out_of_range.412`](../../home/exceptions.md#jsonexceptionout_of_range412) if the length of a string, binary
  value, array, or object exceeds 4294967295, the maximum MessagePack can store; example:
  `"MessagePack length 4294967296 exceeds maximum of 4294967295"`
@@ -57,8 +54,6 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
  `"subtype 70000 is too large for the MessagePack ext type (max 255)"`
 - Throws [type_error.316](../../home/exceptions.md#jsonexceptiontype_error316) if a string or object key in `j` is
  not valid UTF-8 and `error_handler` is `strict`
- Throws [type_error.321](../../home/exceptions.md#jsonexceptiontype_error321) if `j` or a value nested in it is
-  discarded; example: `"cannot serialize discarded value to MessagePack"`

 ## Complexity

@@ -113,7 +108,3 @@ Linear in the size of the JSON value `j`.
 - Fixed in version 3.13.0 to serialize `number_integer_t`/`number_unsigned_t` pairs of different width correctly;
  before, integers could be serialized with the wrong value if `number_integer_t` was narrower than
  `number_unsigned_t`.
- Throws `type_error.321` for a discarded value since version 3.13.0; previously, a discarded value nested in an
-  array or object was silently skipped, producing invalid MessagePack.
- Throws `out_of_range.407` for integers that do not fit 64 bits since version 3.13.0; previously, integers of a
-  number type wider than 64 bits were silently truncated.
@@ -61,8 +61,6 @@ Strong guarantee: if an exception is thrown, there are no changes in the JSON va
 - Throws [type_error.316](../../home/exceptions.md#jsonexceptiontype_error316) if a string or object key in `j` is
  not valid UTF-8 and `error_handler` is `strict` (the default only if
  [`JSON_STRICT_BINARY_UTF8`](../macros/json_strict_binary_utf8.md) is enabled)
- Throws [type_error.321](../../home/exceptions.md#jsonexceptiontype_error321) if `j` or a value nested in it is
-  discarded; example: `"cannot serialize discarded value to UBJSON"`

 ## Complexity

@@ -114,5 +112,3 @@ Linear in the size of the JSON value `j`.
 - Added `error_handler` parameter in version 3.13.0. Its default, `keep`, writes the bytes of a string or object key
  that is not valid UTF-8 unchanged, as before; `strict` (the default if
  [`JSON_STRICT_BINARY_UTF8`](../macros/json_strict_binary_utf8.md) is enabled) throws `type_error.316`.
- Throws `type_error.321` for a discarded value since version 3.13.0; previously, a discarded value nested in an
-  array or object was silently skipped, producing invalid UBJSON.
@@ -52,6 +52,7 @@ Constant.
 - [operator value_t](operator_value_t.md) implicit conversion operator equivalent to this named member function
 - [type_name](type_name.md) returns the type as a string, for use in error messages
 - [value_t](value_t.md) the enumeration of JSON types
+- [basic_json_view::type](../basic_json_view/type.md) - the same function on a zero-copy view

 ## Version history

@@ -56,6 +56,7 @@ Constant.

 - [type](type.md) returns the type of the JSON value
 - [value_t](value_t.md) the enumeration of JSON types
+- [basic_json_view::type_name](../basic_json_view/type_name.md) - the same function on a zero-copy view

 ## Version history

@@ -36,9 +36,8 @@ The function can throw the following exceptions:
 - Throws [`parse_error.109`](../../home/exceptions.md#jsonexceptionparse_error109) if an array index in a key is not a
  number; example: `"array index 'one' is not a number"`
 - Throws [`out_of_range.404`](../../home/exceptions.md#jsonexceptionout_of_range404) if a level becomes an array
-  (because one of its keys is `0`) and another key at that level begins with a digit but is not a valid array index
-  (such as `1a`), or is `-`; example:
-  `"unresolved reference token '-'"`
+  (because one of its keys is `0`) and another key at that level cannot be an array index; example:
+  `"unresolved reference token 'x'"`

 ## Complexity

@@ -81,6 +80,3 @@ Apart from these two cases, for a JSON value `j`, the following is always true:

 - Added in version 2.0.0.
 - Made the array/object decision independent of the object's iteration order in version 3.13.0.
- Throws [`parse_error.109`](../../home/exceptions.md#jsonexceptionparse_error109) instead of
-  [`out_of_range.404`](../../home/exceptions.md#jsonexceptionout_of_range404) for a one-character array index that is
-  not a digit (e.g., `/x`) in version 3.13.0, as it already did for longer ones.
@@ -119,14 +119,6 @@ changes to any JSON value.

 ## Notes

-!!! warning "`null` members are not missing"
-
-    The default value is used only if the key (or JSON Pointer) does not exist. A member that exists but is
-    `#!json null` is converted like any other value, so `#!cpp j.value("k", 0)` throws a
-    [`type_error.302`](../../home/exceptions.md#jsonexceptiontype_error302) if `"k"` is `#!json null`. See
-    [Access with default value](../../features/element_access/default_value.md)
-    for alternatives.
-
 !!! warning "Return type"

    The value function is a template, and the return type of the function is determined by the type of the provided
@@ -224,6 +216,7 @@ changes to any JSON value.

 - see [`at`](at.md) for access by reference with range checking
 - see [`operator[]`](operator%5B%5D.md) for unchecked access by reference
+- [basic_json_view::value](../basic_json_view/value.md) - the same access on a zero-copy view

 ## Version history

@@ -235,6 +228,4 @@ changes to any JSON value.
   [`operator[]`](operator[].md), [`at`](at.md), [`find`](find.md), and other lookup functions.
 3. Added in version 2.0.2. Extended to work with arrays in version 3.13.0, including fixing an issue where resolving
   `ptr` through an array unexpectedly threw `out_of_range` instead of returning the resolved element (or
-   `default_value`, as documented). Throws [`parse_error.109`](../../home/exceptions.md#jsonexceptionparse_error109)
-   instead of returning `default_value` for a one-character array index that is not a digit (e.g., `/x`) in version
-   3.13.0, as it already did for longer ones.
+   `default_value`, as documented).
@@ -1,136 +0,0 @@
-# <small>nlohmann::basic_json::</small>with_t
-
-Member alias templates `with_object_t`, `with_array_t`, `with_string_t`, `with_boolean_t`, `with_integers_t`,
-`with_float_t`, `with_allocator_t`, `with_json_serializer_t`, `with_binary_t`, and `with_base_class_t`.
-
-```cpp
-template<template<typename, typename, typename...> class ObjectType2>
-using with_object_t = basic_json<ObjectType2, ArrayType, StringType, BooleanType,
-      NumberIntegerType, NumberUnsignedType, NumberFloatType,
-      AllocatorType, JSONSerializer, BinaryType, CustomBaseClass>;
-
-template<template<typename, typename...> class ArrayType2>
-using with_array_t = basic_json<ObjectType, ArrayType2, StringType, BooleanType,
-      NumberIntegerType, NumberUnsignedType, NumberFloatType,
-      AllocatorType, JSONSerializer, BinaryType, CustomBaseClass>;
-
-template<class StringType2>
-using with_string_t = basic_json<ObjectType, ArrayType, StringType2, BooleanType,
-      NumberIntegerType, NumberUnsignedType, NumberFloatType,
-      AllocatorType, JSONSerializer, BinaryType, CustomBaseClass>;
-
-template<class BooleanType2>
-using with_boolean_t = basic_json<ObjectType, ArrayType, StringType, BooleanType2,
-      NumberIntegerType, NumberUnsignedType, NumberFloatType,
-      AllocatorType, JSONSerializer, BinaryType, CustomBaseClass>;
-
-template<class NumberIntegerType2, class NumberUnsignedType2>
-using with_integers_t = basic_json<ObjectType, ArrayType, StringType, BooleanType,
-      NumberIntegerType2, NumberUnsignedType2, NumberFloatType,
-      AllocatorType, JSONSerializer, BinaryType, CustomBaseClass>;
-
-template<class NumberFloatType2>
-using with_float_t = basic_json<ObjectType, ArrayType, StringType, BooleanType,
-      NumberIntegerType, NumberUnsignedType, NumberFloatType2,
-      AllocatorType, JSONSerializer, BinaryType, CustomBaseClass>;
-
-template<template<typename> class AllocatorType2>
-using with_allocator_t = basic_json<ObjectType, ArrayType, StringType, BooleanType,
-      NumberIntegerType, NumberUnsignedType, NumberFloatType,
-      AllocatorType2, JSONSerializer, BinaryType, CustomBaseClass>;
-
-template<template<typename, typename = void> class JSONSerializer2>
-using with_json_serializer_t = basic_json<ObjectType, ArrayType, StringType, BooleanType,
-      NumberIntegerType, NumberUnsignedType, NumberFloatType,
-      AllocatorType, JSONSerializer2, BinaryType, CustomBaseClass>;
-
-template<class BinaryType2>
-using with_binary_t = basic_json<ObjectType, ArrayType, StringType, BooleanType,
-      NumberIntegerType, NumberUnsignedType, NumberFloatType,
-      AllocatorType, JSONSerializer, BinaryType2, CustomBaseClass>;
-
-template<class CustomBaseClass2>
-using with_base_class_t = basic_json<ObjectType, ArrayType, StringType, BooleanType,
-      NumberIntegerType, NumberUnsignedType, NumberFloatType,
-      AllocatorType, JSONSerializer, BinaryType, CustomBaseClass2>;
-```
-
-These member alias templates make it easier to create a `basic_json` type that is identical to the current type except
-for one (or, in the case of `with_integers_t`, two) of its [template parameters](index.md#template-parameters).
-Spelling out all 11 template parameters of `basic_json` just to change a single one is verbose and error-prone; these
-aliases only require the replacement type(s).
-
-with_object_t&lt;ObjectType2&gt;
-:   replaces `ObjectType`
-
-with_array_t&lt;ArrayType2&gt;
-:   replaces `ArrayType`
-
-with_string_t&lt;StringType2&gt;
-:   replaces `StringType`
-
-with_boolean_t&lt;BooleanType2&gt;
-:   replaces `BooleanType`
-
-with_integers_t&lt;NumberIntegerType2, NumberUnsignedType2&gt;
-:   replaces both `NumberIntegerType` and `NumberUnsignedType`; the two are combined into a single alias because they
-    are usually changed together (for instance, when switching to fixed-width integer types)
-
-with_float_t&lt;NumberFloatType2&gt;
-:   replaces `NumberFloatType`
-
-with_allocator_t&lt;AllocatorType2&gt;
-:   replaces `AllocatorType`
-
-with_json_serializer_t&lt;JSONSerializer2&gt;
-:   replaces `JSONSerializer`
-
-with_binary_t&lt;BinaryType2&gt;
-:   replaces `BinaryType`
-
-with_base_class_t&lt;CustomBaseClass2&gt;
-:   replaces `CustomBaseClass`; see also [`json_base_class_t`](json_base_class_t.md)
-
-## Notes
-
-All other template parameters are kept unchanged, so the resulting type still uses, for instance, the same
-`ObjectType` unless `with_object_t` itself is used.
-
-The aliases are members of every `basic_json` specialization, including [`ordered_json`](../ordered_json.md), and the
-type they produce is again a `basic_json` specialization. They can therefore be chained to replace several template
-parameters at once:
-
-```cpp
-using my_json = nlohmann::json::with_integers_t<int, unsigned int>::with_float_t<float>;
-using my_ordered_json = nlohmann::ordered_json::with_string_t<std::wstring>;
-```
-
-The result is the same type as spelling out all template parameters, so the order of the chained aliases does not
-matter. For instance, `nlohmann::json::with_object_t<nlohmann::ordered_map>` is `nlohmann::ordered_json`.
-
-## Examples
-
-??? example
-
-    The following code shows how `with_object_t` can be used to create a JSON type that stores object elements in a
-    `std::map` and therefore keeps them sorted by key, unlike the default type which preserves insertion order
-    only when `nlohmann::ordered_json` is used.
-
-    ```cpp
-    --8<-- "examples/with_t.cpp"
-    ```
-
-    Output:
-
-    ```json
-    --8<-- "examples/with_t.output"
-    ```
-
-## See also
-
- [basic_json](index.md#template-parameters) - the template parameters that can be replaced
- [json_base_class_t](json_base_class_t.md) - the type used for `CustomBaseClass`
-
-## Version history
-
- Added in version 3.13.0.