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(function (Prism) {
var keyword =
/\b(?:alignas|alignof|asm|auto|bool|break|case|catch|char|char16_t|char32_t|char8_t|class|co_await|co_return|co_yield|compl|concept|const|const_cast|consteval|constexpr|constinit|continue|decltype|default|delete|do|double|dynamic_cast|else|enum|explicit|export|extern|final|float|for|friend|goto|if|import|inline|int|int16_t|int32_t|int64_t|int8_t|long|module|mutable|namespace|new|noexcept|nullptr|operator|override|private|protected|public|register|reinterpret_cast|requires|return|short|signed|sizeof|static|static_assert|static_cast|struct|switch|template|this|thread_local|throw|try|typedef|typeid|typename|uint16_t|uint32_t|uint64_t|uint8_t|union|unsigned|using|virtual|void|volatile|wchar_t|while)\b/;
var modName = /\b(?!<keyword>)\w+(?:\s*\.\s*\w+)*\b/.source.replace(
/<keyword>/g,
function () {
return keyword.source;
}
);
Prism.languages.cpp = Prism.languages.extend('c', {
'class-name': [
{
pattern: RegExp(
/(\b(?:class|concept|enum|struct|typename)\s+)(?!<keyword>)\w+/.source.replace(
/<keyword>/g,
function () {
return keyword.source;
}
)
),
lookbehind: true,
},
// This is intended to capture the class name of method implementations like:
// void foo::bar() const {}
// However! The `foo` in the above example could also be a namespace, so we only capture the class name if
// it starts with an uppercase letter. This approximation should give decent results.
/\b[A-Z]\w*(?=\s*::\s*\w+\s*\()/,
// This will capture the class name before destructors like:
// Foo::~Foo() {}
/\b[A-Z_]\w*(?=\s*::\s*~\w+\s*\()/i,
// This also intends to capture the class name of method implementations but here the class has template
// parameters, so it can't be a namespace (until C++ adds generic namespaces).
/\b\w+(?=\s*<(?:[^<>]|<(?:[^<>]|<[^<>]*>)*>)*>\s*::\s*\w+\s*\()/,
],
keyword: keyword,
number: {
pattern:
/(?:\b0b[01']+|\b0x(?:[\da-f']+(?:\.[\da-f']*)?|\.[\da-f']+)(?:p[+-]?[\d']+)?|(?:\b[\d']+(?:\.[\d']*)?|\B\.[\d']+)(?:e[+-]?[\d']+)?)[ful]{0,4}/i,
greedy: true,
},
operator:
/>>=?|<<=?|->|--|\+\+|&&|\|\||[?:~]|<=>|[-+*/%&|^!=<>]=?|\b(?:and|and_eq|bitand|bitor|not|not_eq|or|or_eq|xor|xor_eq)\b/,
boolean: /\b(?:false|true)\b/,
});
Prism.languages.insertBefore('cpp', 'string', {
module: {
// https://en.cppreference.com/w/cpp/language/modules
pattern: RegExp(
/(\b(?:import|module)\s+)/.source +
'(?:' +
// header-name
/"(?:\\(?:\r\n|[\s\S])|[^"\\\r\n])*"|<[^<>\r\n]*>/.source +
'|' +
// module name or partition or both
/<mod-name>(?:\s*:\s*<mod-name>)?|:\s*<mod-name>/.source.replace(
/<mod-name>/g,
function () {
return modName;
}
) +
')'
),
lookbehind: true,
greedy: true,
inside: {
string: /^[<"][\s\S]+/,
operator: /:/,
punctuation: /\./,
},
},
'raw-string': {
pattern: /R"([^()\\ ]{0,16})\([\s\S]*?\)\1"/,
alias: 'string',
greedy: true,
},
});
Prism.languages.insertBefore('cpp', 'keyword', {
'generic-function': {
pattern: /\b(?!operator\b)[a-z_]\w*\s*<(?:[^<>]|<[^<>]*>)*>(?=\s*\()/i,
inside: {
function: /^\w+/,
generic: {
pattern: /<[\s\S]+/,
alias: 'class-name',
inside: Prism.languages.cpp,
},
},
},
});
Prism.languages.insertBefore('cpp', 'operator', {
'double-colon': {
pattern: /::/,
alias: 'punctuation',
},
});
Prism.languages.insertBefore('cpp', 'class-name', {
// the base clause is an optional list of parent classes
// https://en.cppreference.com/w/cpp/language/class
'base-clause': {
pattern:
/(\b(?:class|struct)\s+\w+\s*:\s*)[^;{}"'\s]+(?:\s+[^;{}"'\s]+)*(?=\s*[;{])/,
lookbehind: true,
greedy: true,
inside: Prism.languages.extend('cpp', {}),
},
});
Prism.languages.insertBefore(
'inside',
'double-colon',
{
// All untokenized words that are not namespaces should be class names
'class-name': /\b[a-z_]\w*\b(?!\s*::)/i,
},
Prism.languages.cpp['base-clause']
);
})(Prism);
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