mirror of
https://github.com/nlohmann/json.git
synced 2026-10-09 16:07:14 +00:00
deploy: 7c9208bfb3
This commit is contained in:
nlohmann committed
1 parent
9a231845c2
commit
279d757031
758 files changed
+56489
-503
No files matched your search
@@ -183,4 +183,4 @@
|
||||
<span class=w> </span><span class=err>ex=</span><span class=p>[</span><span class=err>jso</span><span class=kc>n</span><span class=err>.excep</span><span class=kc>t</span><span class=err>io</span><span class=kc>n</span><span class=err>.parse_error.</span><span class=mi>101</span><span class=p>]</span><span class=w> </span><span class=err>parse</span><span class=w> </span><span class=err>error</span><span class=w> </span><span class=err>a</span><span class=kc>t</span><span class=w> </span><span class=err>li</span><span class=kc>ne</span><span class=w> </span><span class=mi>17</span><span class=p>,</span><span class=w> </span><span class=err>colum</span><span class=kc>n</span><span class=w> </span><span class=mi>6</span><span class=p>:</span><span class=w> </span><span class=err>sy</span><span class=kc>nta</span><span class=err>x</span><span class=w> </span><span class=err>error</span><span class=w> </span><span class=err>while</span><span class=w> </span><span class=err>parsi</span><span class=kc>n</span><span class=err>g</span><span class=w> </span><span class=err>value</span><span class=w> </span><span class=mi>-</span><span class=w> </span><span class=err>u</span><span class=kc>ne</span><span class=err>xpec</span><span class=kc>te</span><span class=err>d</span><span class=w> </span><span class=err>'</span><span class=p>]</span><span class=err>';</span><span class=w> </span><span class=err>expec</span><span class=kc>te</span><span class=err>d</span><span class=w> </span><span class=err>e</span><span class=kc>n</span><span class=err>d</span><span class=w> </span><span class=err>o</span><span class=kc>f</span><span class=w> </span><span class=err>i</span><span class=kc>n</span><span class=err>pu</span><span class=kc>t</span><span class=err>)</span>
|
||||
|
||||
<span class=err>resul</span><span class=kc>t</span><span class=p>:</span><span class=w> </span><span class=kc>false</span>
|
||||
</code></pre></div> </details> <h2 id=see-also>See also<a class=headerlink href=#see-also title="Permanent link">¶</a></h2> <ul> <li><a href=../parse/ >parse</a> - deserialize from a compatible input</li> <li><a href=../accept/ >accept</a> - check if the input is valid <abbr title="JavaScript Object Notation">JSON</abbr></li> </ul> <h2 id=version-history>Version history<a class=headerlink href=#version-history title="Permanent link">¶</a></h2> <ul> <li>Added in version 3.2.0.</li> <li>Ignoring comments via <code>ignore_comments</code> added in version 3.9.0.</li> <li>Added <code>ignore_trailing_commas</code> in version 3.12.x.</li> </ul> <div class="admonition warning"> <p class=admonition-title>Deprecation</p> <p>Overload (2) replaces calls to <code>sax_parse</code> 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 <code class=highlight><span class=n>sax_parse</span><span class=p>({</span><span class=n>ptr</span><span class=p>,</span><span class=w> </span><span class=n>ptr</span><span class=o>+</span><span class=n>len</span><span class=p>});</span></code> with <code class=highlight><span class=n>sax_parse</span><span class=p>(</span><span class=n>ptr</span><span class=p>,</span><span class=w> </span><span class=n>ptr</span><span class=o>+</span><span class=n>len</span><span class=p>);</span></code>.</p> </div> <!-- https://squidfunk.github.io/mkdocs-material/reference/tooltips/#adding-a-glossary --> <aside class=md-source-file> <span class=md-source-file__fact> <span class=md-icon title="Last update"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M21 13.1c-.1 0-.3.1-.4.2l-1 1 2.1 2.1 1-1c.2-.2.2-.6 0-.8l-1.3-1.3c-.1-.1-.2-.2-.4-.2m-1.9 1.8-6.1 6V23h2.1l6.1-6.1zM12.5 7v5.2l4 2.4-1 1L11 13V7zM11 21.9c-5.1-.5-9-4.8-9-9.9C2 6.5 6.5 2 12 2c5.3 0 9.6 4.1 10 9.3-.3-.1-.6-.2-1-.2s-.7.1-1 .2C19.6 7.2 16.2 4 12 4c-4.4 0-8 3.6-8 8 0 4.1 3.1 7.5 7.1 7.9l-.1.2z"/></svg> </span> <span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-date" title="July 4, 2026 09:13:25 UTC">July 4, 2026</span> </span> </aside> </article> </div> <script>var tabs=__md_get("__tabs");if(Array.isArray(tabs))e:for(var set of document.querySelectorAll(".tabbed-set")){var labels=set.querySelector(".tabbed-labels");for(var tab of tabs)for(var label of labels.getElementsByTagName("label"))if(label.innerText.trim()===tab){var input=document.getElementById(label.htmlFor);input.checked=!0;continue e}}</script> <script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script> </div> <button type=button class="md-top md-icon" data-md-component=top hidden> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8z"/></svg> Back to top </button> </main> <footer class=md-footer> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <div class=md-copyright> <div class=md-copyright__highlight> Copyright © 2013-2026 Niels Lohmann </div> </div> <div class=md-social> <a href="https://github.com/nlohmann" target="_blank" rel="noopener" title="github.com" class="md-social__link"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 512 512"><!-- Font Awesome Free 7.1.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2025 Fonticons, Inc.--><path d="M173.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6m-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3m44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9M252.8 8C114.1 8 8 113.3 8 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C436.2 457.8 504 362.9 504 252 504 113.3 391.5 8 252.8 8M105.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1m-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7m32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1m-11.4-14.7c-1.6 1-1.6 3.6 0 5.9s4.3 3.3 5.6 2.3c1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2"/></svg> </a> <a href="https://www.linkedin.com/in/nielslohmann/" target="_blankLine truncated
|
||||
</code></pre></div> </details> <h2 id=see-also>See also<a class=headerlink href=#see-also title="Permanent link">¶</a></h2> <ul> <li><a href=../parse/ >parse</a> - deserialize from a compatible input</li> <li><a href=../accept/ >accept</a> - check if the input is valid <abbr title="JavaScript Object Notation">JSON</abbr></li> </ul> <h2 id=version-history>Version history<a class=headerlink href=#version-history title="Permanent link">¶</a></h2> <ul> <li>Added in version 3.2.0.</li> <li>Ignoring comments via <code>ignore_comments</code> added in version 3.9.0.</li> <li>Added <code>ignore_trailing_commas</code> in version 3.12.x.</li> </ul> <div class="admonition warning"> <p class=admonition-title>Deprecation</p> <p>Overload (2) replaces calls to <code>sax_parse</code> 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 <code class=highlight><span class=n>sax_parse</span><span class=p>({</span><span class=n>ptr</span><span class=p>,</span><span class=w> </span><span class=n>ptr</span><span class=o>+</span><span class=n>len</span><span class=p>});</span></code> with <code class=highlight><span class=n>sax_parse</span><span class=p>(</span><span class=n>ptr</span><span class=p>,</span><span class=w> </span><span class=n>ptr</span><span class=o>+</span><span class=n>len</span><span class=p>);</span></code>.</p> </div> <!-- https://squidfunk.github.io/mkdocs-material/reference/tooltips/#adding-a-glossary --> <aside class=md-source-file> <span class=md-source-file__fact> <span class=md-icon title="Last update"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M21 13.1c-.1 0-.3.1-.4.2l-1 1 2.1 2.1 1-1c.2-.2.2-.6 0-.8l-1.3-1.3c-.1-.1-.2-.2-.4-.2m-1.9 1.8-6.1 6V23h2.1l6.1-6.1zM12.5 7v5.2l4 2.4-1 1L11 13V7zM11 21.9c-5.1-.5-9-4.8-9-9.9C2 6.5 6.5 2 12 2c5.3 0 9.6 4.1 10 9.3-.3-.1-.6-.2-1-.2s-.7.1-1 .2C19.6 7.2 16.2 4 12 4c-4.4 0-8 3.6-8 8 0 4.1 3.1 7.5 7.1 7.9l-.1.2z"/></svg> </span> <span class="git-revision-date-localized-plugin git-revision-date-localized-plugin-date" title="July 8, 2026 18:18:24 UTC">July 8, 2026</span> </span> </aside> </article> </div> <script>var tabs=__md_get("__tabs");if(Array.isArray(tabs))e:for(var set of document.querySelectorAll(".tabbed-set")){var labels=set.querySelector(".tabbed-labels");for(var tab of tabs)for(var label of labels.getElementsByTagName("label"))if(label.innerText.trim()===tab){var input=document.getElementById(label.htmlFor);input.checked=!0;continue e}}</script> <script>var target=document.getElementById(location.hash.slice(1));target&&target.name&&(target.checked=target.name.startsWith("__tabbed_"))</script> </div> <button type=button class="md-top md-icon" data-md-component=top hidden> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 24 24"><path d="M13 20h-2V8l-5.5 5.5-1.42-1.42L12 4.16l7.92 7.92-1.42 1.42L13 8z"/></svg> Back to top </button> </main> <footer class=md-footer> <div class="md-footer-meta md-typeset"> <div class="md-footer-meta__inner md-grid"> <div class=md-copyright> <div class=md-copyright__highlight> Copyright © 2013-2026 Niels Lohmann </div> </div> <div class=md-social> <a href="https://github.com/nlohmann" target="_blank" rel="noopener" title="github.com" class="md-social__link"> <svg xmlns=http://www.w3.org/2000/svg viewbox="0 0 512 512"><!-- Font Awesome Free 7.1.0 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License) Copyright 2025 Fonticons, Inc.--><path d="M173.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6m-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3m44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9M252.8 8C114.1 8 8 113.3 8 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C436.2 457.8 504 362.9 504 252 504 113.3 391.5 8 252.8 8M105.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1m-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7m32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1m-11.4-14.7c-1.6 1-1.6 3.6 0 5.9s4.3 3.3 5.6 2.3c1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2"/></svg> </a> <a href="https://www.linkedin.com/in/nielslohmann/" target="_blankLine truncated
|
||||
@@ -0,0 +1,283 @@
|
||||
# nlohmann::basic_json::sax_parse
|
||||
|
||||
```
|
||||
// (1)
|
||||
template <typename InputType, typename SAX>
|
||||
static bool sax_parse(InputType&& i,
|
||||
SAX* sax,
|
||||
input_format_t format = input_format_t::json,
|
||||
const bool strict = true,
|
||||
const bool ignore_comments = false,
|
||||
const bool ignore_trailing_commas = false);
|
||||
|
||||
// (2)
|
||||
template<class IteratorType, class SAX>
|
||||
static bool sax_parse(IteratorType first, IteratorType last,
|
||||
SAX* sax,
|
||||
input_format_t format = input_format_t::json,
|
||||
const bool strict = true,
|
||||
const bool ignore_comments = false,
|
||||
const bool ignore_trailing_commas = false);
|
||||
```
|
||||
|
||||
Read from input and generate SAX events
|
||||
|
||||
1. Read from a compatible input.
|
||||
|
||||
1. Read from a pair of character iterators
|
||||
|
||||
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.
|
||||
|
||||
The SAX event lister must follow the interface of [`json_sax`](https://json.nlohmann.me/api/json_sax/index.md).
|
||||
|
||||
## Template parameters
|
||||
|
||||
`InputType` : A compatible input, for instance:
|
||||
|
||||
```
|
||||
- an `std::istream` object
|
||||
- a `FILE` pointer
|
||||
- a C-style array of characters
|
||||
- a pointer to a null-terminated string of single byte characters
|
||||
- an object `obj` for which `begin(obj)` and `end(obj)` produces a valid pair of
|
||||
iterators.
|
||||
```
|
||||
|
||||
`IteratorType` : a compatible iterator type for overload (2); a pair of character iterators whose `value_type` is an integral type with a size of 1, 2, or 4 bytes (interpreted respectively as UTF-8, UTF-16, and UTF-32)
|
||||
|
||||
`SAX` : a class fulfilling the SAX event listener interface; see [`json_sax`](https://json.nlohmann.me/api/json_sax/index.md)
|
||||
|
||||
## Parameters
|
||||
|
||||
`i` (in) : Input to parse from
|
||||
|
||||
`sax` (in) : SAX event listener (must not be null)
|
||||
|
||||
`format` (in) : the format to parse (JSON, CBOR, MessagePack, or UBJSON) (optional, `input_format_t::json` by default), see [`input_format_t`](https://json.nlohmann.me/api/basic_json/input_format_t/index.md) for more information
|
||||
|
||||
`strict` (in) : whether the input has to be consumed completely (optional, `true` by default)
|
||||
|
||||
`ignore_comments` (in) : whether comments should be ignored and treated like whitespace (`true`) or yield a parse error (`false`); (optional, `false` by default)
|
||||
|
||||
`ignore_trailing_commas` (in) : whether trailing commas in arrays or objects should be ignored and treated like whitespace (`true`) or yield a parse error (`false`); (optional, `false` by default)
|
||||
|
||||
`first` (in) : iterator to the start of a character range
|
||||
|
||||
`last` (in) : iterator to the end of a character range
|
||||
|
||||
## Return value
|
||||
|
||||
return value of the last processed SAX event
|
||||
|
||||
## Exception safety
|
||||
|
||||
Strong guarantee: if an exception is thrown, there are no changes in the JSON value.
|
||||
|
||||
## Exceptions
|
||||
|
||||
- Throws [`parse_error.101`](https://json.nlohmann.me/home/exceptions/#jsonexceptionparse_error101) in case of an unexpected token, or empty input like a null `FILE*` or `char*` pointer.
|
||||
|
||||
## Complexity
|
||||
|
||||
Linear in the length of the input. The parser is a predictive LL(1) parser. The complexity can be higher if the SAX consumer `sax` has a super-linear complexity.
|
||||
|
||||
## Notes
|
||||
|
||||
A UTF-8 byte order mark is silently ignored.
|
||||
|
||||
## Examples
|
||||
|
||||
Example
|
||||
|
||||
The example below demonstrates the `sax_parse()` function reading from string and processing the events with a user-defined SAX event consumer.
|
||||
|
||||
```
|
||||
#include <iostream>
|
||||
#include <iomanip>
|
||||
#include <sstream>
|
||||
#include <nlohmann/json.hpp>
|
||||
|
||||
using json = nlohmann::json;
|
||||
|
||||
// a simple event consumer that collects string representations of the passed
|
||||
// values; note inheriting from json::json_sax_t is not required, but can
|
||||
// help not to forget a required function
|
||||
class sax_event_consumer : public json::json_sax_t
|
||||
{
|
||||
public:
|
||||
std::vector<std::string> events;
|
||||
|
||||
bool null() override
|
||||
{
|
||||
events.push_back("null()");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool boolean(bool val) override
|
||||
{
|
||||
events.push_back("boolean(val=" + std::string(val ? "true" : "false") + ")");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool number_integer(number_integer_t val) override
|
||||
{
|
||||
events.push_back("number_integer(val=" + std::to_string(val) + ")");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool number_unsigned(number_unsigned_t val) override
|
||||
{
|
||||
events.push_back("number_unsigned(val=" + std::to_string(val) + ")");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool number_float(number_float_t val, const string_t& s) override
|
||||
{
|
||||
events.push_back("number_float(val=" + std::to_string(val) + ", s=" + s + ")");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool string(string_t& val) override
|
||||
{
|
||||
events.push_back("string(val=" + val + ")");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool start_object(std::size_t elements) override
|
||||
{
|
||||
events.push_back("start_object(elements=" + std::to_string(elements) + ")");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool end_object() override
|
||||
{
|
||||
events.push_back("end_object()");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool start_array(std::size_t elements) override
|
||||
{
|
||||
events.push_back("start_array(elements=" + std::to_string(elements) + ")");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool end_array() override
|
||||
{
|
||||
events.push_back("end_array()");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool key(string_t& val) override
|
||||
{
|
||||
events.push_back("key(val=" + val + ")");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool binary(json::binary_t& val) override
|
||||
{
|
||||
events.push_back("binary(val=[...])");
|
||||
return true;
|
||||
}
|
||||
|
||||
bool parse_error(std::size_t position, const std::string& last_token, const json::exception& ex) override
|
||||
{
|
||||
events.push_back("parse_error(position=" + std::to_string(position) + ", last_token=" + last_token + ",\n ex=" + std::string(ex.what()) + ")");
|
||||
return false;
|
||||
}
|
||||
};
|
||||
|
||||
int main()
|
||||
{
|
||||
// a JSON text
|
||||
auto text = R"(
|
||||
{
|
||||
"Image": {
|
||||
"Width": 800,
|
||||
"Height": 600,
|
||||
"Title": "View from 15th Floor",
|
||||
"Thumbnail": {
|
||||
"Url": "http://www.example.com/image/481989943",
|
||||
"Height": 125,
|
||||
"Width": 100
|
||||
},
|
||||
"Animated" : false,
|
||||
"IDs": [116, 943, 234, -38793],
|
||||
"DeletionDate": null,
|
||||
"Distance": 12.723374634
|
||||
}
|
||||
}]
|
||||
)";
|
||||
|
||||
// create a SAX event consumer object
|
||||
sax_event_consumer sec;
|
||||
|
||||
// parse JSON
|
||||
bool result = json::sax_parse(text, &sec);
|
||||
|
||||
// output the recorded events
|
||||
for (auto& event : sec.events)
|
||||
{
|
||||
std::cout << event << "\n";
|
||||
}
|
||||
|
||||
// output the result of sax_parse
|
||||
std::cout << "\nresult: " << std::boolalpha << result << std::endl;
|
||||
}
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```
|
||||
start_object(elements=18446744073709551615)
|
||||
key(val=Image)
|
||||
start_object(elements=18446744073709551615)
|
||||
key(val=Width)
|
||||
number_unsigned(val=800)
|
||||
key(val=Height)
|
||||
number_unsigned(val=600)
|
||||
key(val=Title)
|
||||
string(val=View from 15th Floor)
|
||||
key(val=Thumbnail)
|
||||
start_object(elements=18446744073709551615)
|
||||
key(val=Url)
|
||||
string(val=http://www.example.com/image/481989943)
|
||||
key(val=Height)
|
||||
number_unsigned(val=125)
|
||||
key(val=Width)
|
||||
number_unsigned(val=100)
|
||||
end_object()
|
||||
key(val=Animated)
|
||||
boolean(val=false)
|
||||
key(val=IDs)
|
||||
start_array(elements=18446744073709551615)
|
||||
number_unsigned(val=116)
|
||||
number_unsigned(val=943)
|
||||
number_unsigned(val=234)
|
||||
number_integer(val=-38793)
|
||||
end_array()
|
||||
key(val=DeletionDate)
|
||||
null()
|
||||
key(val=Distance)
|
||||
number_float(val=12.723375, s=12.723374634)
|
||||
end_object()
|
||||
end_object()
|
||||
parse_error(position=460, last_token=12.723374634<U+000A> }<U+000A> }],
|
||||
ex=[json.exception.parse_error.101] parse error at line 17, column 6: syntax error while parsing value - unexpected ']'; expected end of input)
|
||||
|
||||
result: false
|
||||
```
|
||||
|
||||
## See also
|
||||
|
||||
- [parse](https://json.nlohmann.me/api/basic_json/parse/index.md) - deserialize from a compatible input
|
||||
- [accept](https://json.nlohmann.me/api/basic_json/accept/index.md) - check if the input is valid JSON
|
||||
|
||||
## Version history
|
||||
|
||||
- Added in version 3.2.0.
|
||||
- Ignoring comments via `ignore_comments` added in version 3.9.0.
|
||||
- Added `ignore_trailing_commas` in version 3.12.x.
|
||||
|
||||
Deprecation
|
||||
|
||||
Overload (2) replaces calls to `sax_parse` 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 `sax_parse({ptr, ptr+len});` with `sax_parse(ptr, ptr+len);`.
|
||||
Reference in new issue
Block a user