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https://github.com/nlohmann/json.git
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Niels Lohmann
330fbead59
* Document clang-tidy exclusions and drop unneeded ones Re-enable every excluded check in a run of clang-tidy 22 over all tests and remove the seven that never fire (cert-err58-cpp, clang-analyzer-webkit.NoUncountedMemberChecker, cppcoreguidelines-virtual-class-destructor, google-readability-function-size, hicpp-function-size, hicpp-no-assembler, readability-function-size). Document the reason for every remaining exclusion at the top of the file. Exclude in advance the checks that only exist in clang-tidy 23 and are noise here (bugprone-signed-bitwise, *-explicit-constructor, readability-trailing-comma, modernize-use-string-view), plus modernize-use-integer-sign-comparison, which needs C++20 std::cmp_less and flags deliberate casts. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix clang-tidy findings in documentation examples and replace redundant aliases Apply clang-tidy fixes to the documentation examples: - performance-avoid-endl: std::endl -> '\n' - readability-qualified-auto: auto -> auto* / const auto* - performance-for-range-copy: copy -> const reference - google-readability-casting: C-style cast -> static_cast Replace redundant aliases (readability-redundant-qualified-alias) such as "using json = nlohmann::json;" with "using nlohmann::json;" in the documentation, README, examples, tests, and benchmarks. Aliases at class scope and aliases of other types (with_base_class_t etc.) are kept. No changes to the library or its public API. All changed examples were compiled and run; their output matches the stored .output files (except max_size and meta, which depend on the platform and compiler). Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Format doc examples with the pinned astyle Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me>
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
#include <iostream>
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#include <nlohmann/json.hpp>
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using nlohmann::json;
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// a DOM parser that reports parse errors instead of throwing
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class sax_no_exception : public nlohmann::detail::json_sax_dom_parser<json, nlohmann::detail::string_input_adapter_type>
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{
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public:
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explicit sax_no_exception(json& j)
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: nlohmann::detail::json_sax_dom_parser<json, nlohmann::detail::string_input_adapter_type>(j, false)
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{}
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bool parse_error(std::size_t position,
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const std::string& last_token,
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const json::exception& ex)
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{
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std::cout << "parse error at input byte " << position << "\n"
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<< ex.what() << "\n"
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<< "last read: \"" << last_token << "\""
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<< '\n';
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return false;
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}
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};
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int main()
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{
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std::string myinput = "[1,2,3,]";
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json result;
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sax_no_exception sax(result);
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bool parse_result = json::sax_parse(myinput, &sax);
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if (!parse_result)
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{
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std::cout << "parsing unsuccessful!" << '\n';
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}
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std::cout << "parsed value: " << result << '\n';
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}
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