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464 lines
10 KiB
464 lines
10 KiB
/** |
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* @param {string} value |
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* @returns {RegExp} |
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* */ |
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/** |
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* @param {RegExp | string } re |
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* @returns {string} |
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*/ |
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function source(re) { |
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if (!re) return null; |
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if (typeof re === "string") return re; |
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return re.source; |
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} |
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/** |
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* @param {RegExp | string } re |
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* @returns {string} |
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*/ |
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function lookahead(re) { |
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return concat('(?=', re, ')'); |
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} |
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/** |
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* @param {RegExp | string } re |
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* @returns {string} |
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*/ |
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function optional(re) { |
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return concat('(', re, ')?'); |
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} |
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/** |
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* @param {...(RegExp | string) } args |
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* @returns {string} |
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*/ |
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function concat(...args) { |
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const joined = args.map((x) => source(x)).join(""); |
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return joined; |
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} |
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/* |
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Language: C++ |
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Category: common, system |
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Website: https://isocpp.org |
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*/ |
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/** @type LanguageFn */ |
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function cpp(hljs) { |
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// added for historic reasons because `hljs.C_LINE_COMMENT_MODE` does |
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// not include such support nor can we be sure all the grammars depending |
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// on it would desire this behavior |
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const C_LINE_COMMENT_MODE = hljs.COMMENT('//', '$', { |
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contains: [ |
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{ |
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begin: /\\\n/ |
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} |
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] |
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}); |
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const DECLTYPE_AUTO_RE = 'decltype\\(auto\\)'; |
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const NAMESPACE_RE = '[a-zA-Z_]\\w*::'; |
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const TEMPLATE_ARGUMENT_RE = '<[^<>]+>'; |
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const FUNCTION_TYPE_RE = '(' + |
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DECLTYPE_AUTO_RE + '|' + |
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optional(NAMESPACE_RE) + |
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'[a-zA-Z_]\\w*' + optional(TEMPLATE_ARGUMENT_RE) + |
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')'; |
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const CPP_PRIMITIVE_TYPES = { |
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className: 'keyword', |
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begin: '\\b[a-z\\d_]*_t\\b' |
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}; |
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// https://en.cppreference.com/w/cpp/language/escape |
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// \\ \x \xFF \u2837 \u00323747 \374 |
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const CHARACTER_ESCAPES = '\\\\(x[0-9A-Fa-f]{2}|u[0-9A-Fa-f]{4,8}|[0-7]{3}|\\S)'; |
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const STRINGS = { |
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className: 'string', |
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variants: [ |
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{ |
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begin: '(u8?|U|L)?"', |
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end: '"', |
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illegal: '\\n', |
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contains: [ hljs.BACKSLASH_ESCAPE ] |
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}, |
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{ |
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begin: '(u8?|U|L)?\'(' + CHARACTER_ESCAPES + "|.)", |
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end: '\'', |
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illegal: '.' |
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}, |
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hljs.END_SAME_AS_BEGIN({ |
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begin: /(?:u8?|U|L)?R"([^()\\ ]{0,16})\(/, |
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end: /\)([^()\\ ]{0,16})"/ |
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}) |
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] |
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}; |
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const NUMBERS = { |
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className: 'number', |
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variants: [ |
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{ |
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begin: '\\b(0b[01\']+)' |
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}, |
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{ |
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begin: '(-?)\\b([\\d\']+(\\.[\\d\']*)?|\\.[\\d\']+)((ll|LL|l|L)(u|U)?|(u|U)(ll|LL|l|L)?|f|F|b|B)' |
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}, |
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{ |
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begin: '(-?)(\\b0[xX][a-fA-F0-9\']+|(\\b[\\d\']+(\\.[\\d\']*)?|\\.[\\d\']+)([eE][-+]?[\\d\']+)?)' |
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} |
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], |
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relevance: 0 |
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}; |
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const PREPROCESSOR = { |
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className: 'meta', |
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begin: /#\s*[a-z]+\b/, |
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end: /$/, |
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keywords: { |
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'meta-keyword': |
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'if else elif endif define undef warning error line ' + |
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'pragma _Pragma ifdef ifndef include' |
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}, |
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contains: [ |
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{ |
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begin: /\\\n/, |
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relevance: 0 |
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}, |
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hljs.inherit(STRINGS, { |
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className: 'meta-string' |
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}), |
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{ |
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className: 'meta-string', |
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begin: /<.*?>/ |
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}, |
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C_LINE_COMMENT_MODE, |
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hljs.C_BLOCK_COMMENT_MODE |
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] |
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}; |
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const TITLE_MODE = { |
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className: 'title', |
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begin: optional(NAMESPACE_RE) + hljs.IDENT_RE, |
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relevance: 0 |
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}; |
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const FUNCTION_TITLE = optional(NAMESPACE_RE) + hljs.IDENT_RE + '\\s*\\('; |
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const COMMON_CPP_HINTS = [ |
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'asin', |
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'atan2', |
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'atan', |
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'calloc', |
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'ceil', |
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'cosh', |
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'cos', |
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'exit', |
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'exp', |
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'fabs', |
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'floor', |
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'fmod', |
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'fprintf', |
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'fputs', |
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'free', |
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'frexp', |
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'auto_ptr', |
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'deque', |
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'list', |
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'queue', |
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'stack', |
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'vector', |
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'map', |
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'set', |
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'pair', |
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'bitset', |
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'multiset', |
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'multimap', |
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'unordered_set', |
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'fscanf', |
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'future', |
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'isalnum', |
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'isalpha', |
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'iscntrl', |
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'isdigit', |
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'isgraph', |
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'islower', |
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'isprint', |
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'ispunct', |
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'isspace', |
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'isupper', |
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'isxdigit', |
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'tolower', |
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'toupper', |
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'labs', |
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'ldexp', |
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'log10', |
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'log', |
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'malloc', |
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'realloc', |
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'memchr', |
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'memcmp', |
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'memcpy', |
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'memset', |
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'modf', |
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'pow', |
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'printf', |
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'putchar', |
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'puts', |
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'scanf', |
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'sinh', |
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'sin', |
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'snprintf', |
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'sprintf', |
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'sqrt', |
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'sscanf', |
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'strcat', |
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'strchr', |
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'strcmp', |
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'strcpy', |
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'strcspn', |
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'strlen', |
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'strncat', |
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'strncmp', |
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'strncpy', |
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'strpbrk', |
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'strrchr', |
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'strspn', |
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'strstr', |
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'tanh', |
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'tan', |
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'unordered_map', |
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'unordered_multiset', |
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'unordered_multimap', |
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'priority_queue', |
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'make_pair', |
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'array', |
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'shared_ptr', |
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'abort', |
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'terminate', |
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'abs', |
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'acos', |
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'vfprintf', |
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'vprintf', |
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'vsprintf', |
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'endl', |
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'initializer_list', |
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'unique_ptr', |
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'complex', |
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'imaginary', |
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'std', |
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'string', |
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'wstring', |
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'cin', |
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'cout', |
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'cerr', |
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'clog', |
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'stdin', |
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'stdout', |
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'stderr', |
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'stringstream', |
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'istringstream', |
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'ostringstream' |
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]; |
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const CPP_KEYWORDS = { |
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keyword: 'int float while private char char8_t char16_t char32_t catch import module export virtual operator sizeof ' + |
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'dynamic_cast|10 typedef const_cast|10 const for static_cast|10 union namespace ' + |
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'unsigned long volatile static protected bool template mutable if public friend ' + |
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'do goto auto void enum else break extern using asm case typeid wchar_t ' + |
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'short reinterpret_cast|10 default double register explicit signed typename try this ' + |
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'switch continue inline delete alignas alignof constexpr consteval constinit decltype ' + |
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'concept co_await co_return co_yield requires ' + |
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'noexcept static_assert thread_local restrict final override ' + |
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'atomic_bool atomic_char atomic_schar ' + |
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'atomic_uchar atomic_short atomic_ushort atomic_int atomic_uint atomic_long atomic_ulong atomic_llong ' + |
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'atomic_ullong new throw return ' + |
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'and and_eq bitand bitor compl not not_eq or or_eq xor xor_eq', |
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built_in: '_Bool _Complex _Imaginary', |
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_relevance_hints: COMMON_CPP_HINTS, |
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literal: 'true false nullptr NULL' |
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}; |
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const FUNCTION_DISPATCH = { |
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className: "function.dispatch", |
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relevance: 0, |
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keywords: CPP_KEYWORDS, |
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begin: concat( |
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/\b/, |
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/(?!decltype)/, |
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/(?!if)/, |
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/(?!for)/, |
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/(?!while)/, |
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hljs.IDENT_RE, |
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lookahead(/\s*\(/)) |
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}; |
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const EXPRESSION_CONTAINS = [ |
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FUNCTION_DISPATCH, |
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PREPROCESSOR, |
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CPP_PRIMITIVE_TYPES, |
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C_LINE_COMMENT_MODE, |
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hljs.C_BLOCK_COMMENT_MODE, |
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NUMBERS, |
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STRINGS |
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]; |
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const EXPRESSION_CONTEXT = { |
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// This mode covers expression context where we can't expect a function |
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// definition and shouldn't highlight anything that looks like one: |
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// `return some()`, `else if()`, `(x*sum(1, 2))` |
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variants: [ |
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{ |
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begin: /=/, |
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end: /;/ |
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}, |
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{ |
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begin: /\(/, |
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end: /\)/ |
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}, |
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{ |
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beginKeywords: 'new throw return else', |
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end: /;/ |
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} |
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], |
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keywords: CPP_KEYWORDS, |
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contains: EXPRESSION_CONTAINS.concat([ |
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{ |
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begin: /\(/, |
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end: /\)/, |
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keywords: CPP_KEYWORDS, |
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contains: EXPRESSION_CONTAINS.concat([ 'self' ]), |
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relevance: 0 |
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} |
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]), |
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relevance: 0 |
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}; |
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const FUNCTION_DECLARATION = { |
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className: 'function', |
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begin: '(' + FUNCTION_TYPE_RE + '[\\*&\\s]+)+' + FUNCTION_TITLE, |
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returnBegin: true, |
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end: /[{;=]/, |
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excludeEnd: true, |
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keywords: CPP_KEYWORDS, |
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illegal: /[^\w\s\*&:<>.]/, |
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contains: [ |
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{ // to prevent it from being confused as the function title |
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begin: DECLTYPE_AUTO_RE, |
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keywords: CPP_KEYWORDS, |
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relevance: 0 |
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}, |
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{ |
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begin: FUNCTION_TITLE, |
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returnBegin: true, |
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contains: [ TITLE_MODE ], |
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relevance: 0 |
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}, |
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// needed because we do not have look-behind on the below rule |
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// to prevent it from grabbing the final : in a :: pair |
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{ |
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begin: /::/, |
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relevance: 0 |
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}, |
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// initializers |
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{ |
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begin: /:/, |
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endsWithParent: true, |
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contains: [ |
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STRINGS, |
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NUMBERS |
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] |
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}, |
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{ |
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className: 'params', |
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begin: /\(/, |
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end: /\)/, |
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keywords: CPP_KEYWORDS, |
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relevance: 0, |
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contains: [ |
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C_LINE_COMMENT_MODE, |
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hljs.C_BLOCK_COMMENT_MODE, |
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STRINGS, |
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NUMBERS, |
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CPP_PRIMITIVE_TYPES, |
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// Count matching parentheses. |
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{ |
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begin: /\(/, |
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end: /\)/, |
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keywords: CPP_KEYWORDS, |
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relevance: 0, |
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contains: [ |
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'self', |
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C_LINE_COMMENT_MODE, |
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hljs.C_BLOCK_COMMENT_MODE, |
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STRINGS, |
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NUMBERS, |
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CPP_PRIMITIVE_TYPES |
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] |
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} |
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] |
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}, |
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CPP_PRIMITIVE_TYPES, |
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C_LINE_COMMENT_MODE, |
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hljs.C_BLOCK_COMMENT_MODE, |
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PREPROCESSOR |
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] |
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}; |
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return { |
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name: 'C++', |
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aliases: [ |
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'cc', |
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'c++', |
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'h++', |
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'hpp', |
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'hh', |
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'hxx', |
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'cxx' |
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], |
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keywords: CPP_KEYWORDS, |
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illegal: '</', |
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classNameAliases: { |
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"function.dispatch": "built_in" |
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}, |
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contains: [].concat( |
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EXPRESSION_CONTEXT, |
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FUNCTION_DECLARATION, |
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FUNCTION_DISPATCH, |
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EXPRESSION_CONTAINS, |
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[ |
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PREPROCESSOR, |
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{ // containers: ie, `vector <int> rooms (9);` |
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begin: '\\b(deque|list|queue|priority_queue|pair|stack|vector|map|set|bitset|multiset|multimap|unordered_map|unordered_set|unordered_multiset|unordered_multimap|array)\\s*<', |
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end: '>', |
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keywords: CPP_KEYWORDS, |
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contains: [ |
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'self', |
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CPP_PRIMITIVE_TYPES |
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] |
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}, |
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{ |
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begin: hljs.IDENT_RE + '::', |
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keywords: CPP_KEYWORDS |
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}, |
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{ |
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className: 'class', |
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beginKeywords: 'enum class struct union', |
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end: /[{;:<>=]/, |
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contains: [ |
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{ |
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beginKeywords: "final class struct" |
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}, |
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hljs.TITLE_MODE |
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] |
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} |
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]), |
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exports: { |
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preprocessor: PREPROCESSOR, |
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strings: STRINGS, |
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keywords: CPP_KEYWORDS |
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} |
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}; |
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} |
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module.exports = cpp;
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