cpp.js

// @ts-nocheck
import refractorC from './c.js'
cpp.displayName = 'cpp'
cpp.aliases = []

/** @type {import('../core.js').Syntax} */
export default function cpp(Prism) {
  Prism.register(refractorC)
  ;(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)
}