Overleaf/services/web/public/js/ace/mode/c_cpp_highlight_rules.js

define(function(require, exports, module) {
"use strict";

var oop = require("../lib/oop");
var DocCommentHighlightRules = require("./doc_comment_highlight_rules").DocCommentHighlightRules;
var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;

// used by objective-c
var cFunctions = exports.cFunctions = "\\s*\\bhypot(?:f|l)?|s(?:scanf|ystem|nprintf|ca(?:nf|lb(?:n(?:f|l)?|ln(?:f|l)?))|i(?:n(?:h(?:f|l)?|f|l)?|gn(?:al|bit))|tr(?:s(?:tr|pn)|nc(?:py|at|mp)|c(?:spn|hr|oll|py|at|mp)|to(?:imax|d|u(?:l(?:l)?|max)|k|f|l(?:d|l)?)|error|pbrk|ftime|len|rchr|xfrm)|printf|et(?:jmp|vbuf|locale|buf)|qrt(?:f|l)?|w(?:scanf|printf)|rand)|n(?:e(?:arbyint(?:f|l)?|xt(?:toward(?:f|l)?|after(?:f|l)?))|an(?:f|l)?)|c(?:s(?:in(?:h(?:f|l)?|f|l)?|qrt(?:f|l)?)|cos(?:h(?:f)?|f|l)?|imag(?:f|l)?|t(?:ime|an(?:h(?:f|l)?|f|l)?)|o(?:s(?:h(?:f|l)?|f|l)?|nj(?:f|l)?|pysign(?:f|l)?)|p(?:ow(?:f|l)?|roj(?:f|l)?)|e(?:il(?:f|l)?|xp(?:f|l)?)|l(?:o(?:ck|g(?:f|l)?)|earerr)|a(?:sin(?:h(?:f|l)?|f|l)?|cos(?:h(?:f|l)?|f|l)?|tan(?:h(?:f|l)?|f|l)?|lloc|rg(?:f|l)?|bs(?:f|l)?)|real(?:f|l)?|brt(?:f|l)?)|t(?:ime|o(?:upper|lower)|an(?:h(?:f|l)?|f|l)?|runc(?:f|l)?|gamma(?:f|l)?|mp(?:nam|file))|i(?:s(?:space|n(?:ormal|an)|cntrl|inf|digit|u(?:nordered|pper)|p(?:unct|rint)|finite|w(?:space|c(?:ntrl|type)|digit|upper|p(?:unct|rint)|lower|al(?:num|pha)|graph|xdigit|blank)|l(?:ower|ess(?:equal|greater)?)|al(?:num|pha)|gr(?:eater(?:equal)?|aph)|xdigit|blank)|logb(?:f|l)?|max(?:div|abs))|di(?:v|fftime)|_Exit|unget(?:c|wc)|p(?:ow(?:f|l)?|ut(?:s|c(?:har)?|wc(?:har)?)|error|rintf)|e(?:rf(?:c(?:f|l)?|f|l)?|x(?:it|p(?:2(?:f|l)?|f|l|m1(?:f|l)?)?))|v(?:s(?:scanf|nprintf|canf|printf|w(?:scanf|printf))|printf|f(?:scanf|printf|w(?:scanf|printf))|w(?:scanf|printf)|a_(?:start|copy|end|arg))|qsort|f(?:s(?:canf|e(?:tpos|ek))|close|tell|open|dim(?:f|l)?|p(?:classify|ut(?:s|c|w(?:s|c))|rintf)|e(?:holdexcept|set(?:e(?:nv|xceptflag)|round)|clearexcept|testexcept|of|updateenv|r(?:aiseexcept|ror)|get(?:e(?:nv|xceptflag)|round))|flush|w(?:scanf|ide|printf|rite)|loor(?:f|l)?|abs(?:f|l)?|get(?:s|c|pos|w(?:s|c))|re(?:open|e|ad|xp(?:f|l)?)|m(?:in(?:f|l)?|od(?:f|l)?|a(?:f|l|x(?:f|l)?)?))|l(?:d(?:iv|exp(?:f|l)?)|o(?:ngjmp|cal(?:time|econv)|g(?:1(?:p(?:f|l)?|0(?:f|l)?)|2(?:f|l)?|f|l|b(?:f|l)?)?)|abs|l(?:div|abs|r(?:int(?:f|l)?|ound(?:f|l)?))|r(?:int(?:f|l)?|ound(?:f|l)?)|gamma(?:f|l)?)|w(?:scanf|c(?:s(?:s(?:tr|pn)|nc(?:py|at|mp)|c(?:spn|hr|oll|py|at|mp)|to(?:imax|d|u(?:l(?:l)?|max)|k|f|l(?:d|l)?|mbs)|pbrk|ftime|len|r(?:chr|tombs)|xfrm)|to(?:b|mb)|rtomb)|printf|mem(?:set|c(?:hr|py|mp)|move))|a(?:s(?:sert|ctime|in(?:h(?:f|l)?|f|l)?)|cos(?:h(?:f|l)?|f|l)?|t(?:o(?:i|f|l(?:l)?)|exit|an(?:h(?:f|l)?|2(?:f|l)?|f|l)?)|b(?:s|ort))|g(?:et(?:s|c(?:har)?|env|wc(?:har)?)|mtime)|r(?:int(?:f|l)?|ound(?:f|l)?|e(?:name|alloc|wind|m(?:ove|quo(?:f|l)?|ainder(?:f|l)?))|a(?:nd|ise))|b(?:search|towc)|m(?:odf(?:f|l)?|em(?:set|c(?:hr|py|mp)|move)|ktime|alloc|b(?:s(?:init|towcs|rtowcs)|towc|len|r(?:towc|len)))\\b"

var c_cppHighlightRules = function() {

    var keywordControls = (
        "break|case|continue|default|do|else|for|goto|if|_Pragma|" +
        "return|switch|while|catch|operator|try|throw|using"
    );
    
    var storageType = (
        "asm|__asm__|auto|bool|_Bool|char|_Complex|double|enum|float|" +
        "_Imaginary|int|long|short|signed|struct|typedef|union|unsigned|void|" +
        "class|wchar_t|template"
    );

    var storageModifiers = (
        "const|extern|register|restrict|static|volatile|inline|private:|" +
        "protected:|public:|friend|explicit|virtual|export|mutable|typename"
    );

    var keywordOperators = (
        "and|and_eq|bitand|bitor|compl|not|not_eq|or|or_eq|typeid|xor|xor_eq" +
        "const_cast|dynamic_cast|reinterpret_cast|static_cast|sizeof|namespace"
    );

    var builtinConstants = (
        "NULL|true|false|TRUE|FALSE"
    );

    var keywordMapper = this.$keywords = this.createKeywordMapper({
        "keyword.control" : keywordControls,
        "storage.type" : storageType,
        "storage.modifier" : storageModifiers,
        "keyword.operator" : keywordOperators,
        "variable.language": "this",
        "constant.language": builtinConstants
    }, "identifier");

    var identifierRe = "[a-zA-Z\\$_\u00a1-\uffff][a-zA-Z\d\\$_\u00a1-\uffff]*\\b";

    // regexp must not have capturing parentheses. Use (?:) instead.
    // regexps are ordered -> the first match is used

    this.$rules = {
        "start" : [
            {
                token : "comment",
                regex : "\\/\\/.*$"
            },
            DocCommentHighlightRules.getStartRule("doc-start"),
            {
                token : "comment", // multi line comment
                regex : "\\/\\*",
                next : "comment"
            }, {
                token : "string", // single line
                regex : '["](?:(?:\\\\.)|(?:[^"\\\\]))*?["]'
            }, {
                token : "string", // multi line string start
                regex : '["].*\\\\$',
                next : "qqstring"
            }, {
                token : "string", // single line
                regex : "['](?:(?:\\\\.)|(?:[^'\\\\]))*?[']"
            }, {
                token : "string", // multi line string start
                regex : "['].*\\\\$",
                next : "qstring"
            }, {
                token : "constant.numeric", // hex
                regex : "0[xX][0-9a-fA-F]+(L|l|UL|ul|u|U|F|f|ll|LL|ull|ULL)?\\b"
            }, {
                token : "constant.numeric", // float
                regex : "[+-]?\\d+(?:(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)?(L|l|UL|ul|u|U|F|f|ll|LL|ull|ULL)?\\b"
            }, {
                token : "keyword", // pre-compiler directives
                regex : "#\\s*(?:include|import|pragma|line|define|undef|if|ifdef|else|elif|ifndef)\\b",
                next  : "directive"
            }, {
                token : "keyword", // special case pre-compiler directive
                regex : "(?:#\\s*endif)\\b"
            }, {
                token : "support.function.C99.c",
                regex : cFunctions
            }, {
                token : keywordMapper,
                regex : "[a-zA-Z_$][a-zA-Z0-9_$]*\\b"
            }, {
                token : "keyword.operator",
                regex : "!|\\$|%|&|\\*|\\-\\-|\\-|\\+\\+|\\+|~|==|=|!=|<=|>=|<<=|>>=|>>>=|<>|<|>|!|&&|\\|\\||\\?\\:|\\*=|%=|\\+=|\\-=|&=|\\^=|\\b(?:in|new|delete|typeof|void)"
            }, {
              token : "punctuation.operator",
              regex : "\\?|\\:|\\,|\\;|\\."
            }, {
                token : "paren.lparen",
                regex : "[[({]"
            }, {
                token : "paren.rparen",
                regex : "[\\])}]"
            }, {
                token : "text",
                regex : "\\s+"
            }
        ],
        "comment" : [
            {
                token : "comment", // closing comment
                regex : ".*?\\*\\/",
                next : "start"
            }, {
                token : "comment", // comment spanning whole line
                regex : ".+"
            }
        ],
        "qqstring" : [
            {
                token : "string",
                regex : '(?:(?:\\\\.)|(?:[^"\\\\]))*?"',
                next : "start"
            }, {
                token : "string",
                regex : '.+'
            }
        ],
        "qstring" : [
            {
                token : "string",
                regex : "(?:(?:\\\\.)|(?:[^'\\\\]))*?'",
                next : "start"
            }, {
                token : "string",
                regex : '.+'
            }
        ],
        "directive" : [
            {
                token : "constant.other.multiline",
                regex : /\\/
            },
            {
                token : "constant.other.multiline",
                regex : /.*\\/
            },
            {
                token : "constant.other",
                regex : "\\s*<.+?>",
                next : "start"
            },
            {
                token : "constant.other", // single line
                regex : '\\s*["](?:(?:\\\\.)|(?:[^"\\\\]))*?["]',
                next : "start"
            }, 
            {
                token : "constant.other", // single line
                regex : "\\s*['](?:(?:\\\\.)|(?:[^'\\\\]))*?[']",
                next : "start"
            },
            // "\" implies multiline, while "/" implies comment
            {
                token : "constant.other",
                regex : /[^\\\/]+/,
                next : "start"
            }
        ]
    };

    this.embedRules(DocCommentHighlightRules, "doc-",
        [ DocCommentHighlightRules.getEndRule("start") ]);
};

oop.inherits(c_cppHighlightRules, TextHighlightRules);

exports.c_cppHighlightRules = c_cppHighlightRules;
});