overleaf/services/web/public/js/ace/mode/python_highlight_rules.js

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 *       names of its contributors may be used to endorse or promote products
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/*
 * TODO: python delimiters
 */

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

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

var PythonHighlightRules = function() {

    var keywords = (
        "and|as|assert|break|class|continue|def|del|elif|else|except|exec|" +
        "finally|for|from|global|if|import|in|is|lambda|not|or|pass|print|" +
        "raise|return|try|while|with|yield"
    );

    var builtinConstants = (
        "True|False|None|NotImplemented|Ellipsis|__debug__"
    );

    var builtinFunctions = (
        "abs|divmod|input|open|staticmethod|all|enumerate|int|ord|str|any|" +
        "eval|isinstance|pow|sum|basestring|execfile|issubclass|print|super|" +
        "binfile|iter|property|tuple|bool|filter|len|range|type|bytearray|" +
        "float|list|raw_input|unichr|callable|format|locals|reduce|unicode|" +
        "chr|frozenset|long|reload|vars|classmethod|getattr|map|repr|xrange|" +
        "cmp|globals|max|reversed|zip|compile|hasattr|memoryview|round|" +
        "__import__|complex|hash|min|set|apply|delattr|help|next|setattr|" +
        "buffer|dict|hex|object|slice|coerce|dir|id|oct|sorted|intern"
    );

    //var futureReserved = "";
    var keywordMapper = this.createKeywordMapper({
        "invalid.deprecated": "debugger",
        "support.function": builtinFunctions,
        //"invalid.illegal": futureReserved,
        "constant.language": builtinConstants,
        "keyword": keywords
    }, "identifier");

    var strPre = "(?:r|u|ur|R|U|UR|Ur|uR)?";

    var decimalInteger = "(?:(?:[1-9]\\d*)|(?:0))";
    var octInteger = "(?:0[oO]?[0-7]+)";
    var hexInteger = "(?:0[xX][\\dA-Fa-f]+)";
    var binInteger = "(?:0[bB][01]+)";
    var integer = "(?:" + decimalInteger + "|" + octInteger + "|" + hexInteger + "|" + binInteger + ")";

    var exponent = "(?:[eE][+-]?\\d+)";
    var fraction = "(?:\\.\\d+)";
    var intPart = "(?:\\d+)";
    var pointFloat = "(?:(?:" + intPart + "?" + fraction + ")|(?:" + intPart + "\\.))";
    var exponentFloat = "(?:(?:" + pointFloat + "|" +  intPart + ")" + exponent + ")";
    var floatNumber = "(?:" + exponentFloat + "|" + pointFloat + ")";

    var stringEscape =  "\\\\(x[0-9A-Fa-f]{2}|[0-7]{3}|[\\\\abfnrtv'\"]|U[0-9A-Fa-f]{8}|u[0-9A-Fa-f]{4})";

    this.$rules = {
        "start" : [ {
            token : "comment",
            regex : "#.*$"
        }, {
            token : "string",           // multi line """ string start
            regex : strPre + '"{3}',
            next : "qqstring3"
        }, {
            token : "string",           // " string
            regex : strPre + '"(?=.)',
            next : "qqstring"
        }, {
            token : "string",           // multi line ''' string start
            regex : strPre + "'{3}",
            next : "qstring3"
        }, {
            token : "string",           // ' string
            regex : strPre + "'(?=.)",
            next : "qstring"
        }, {
            token : "constant.numeric", // imaginary
            regex : "(?:" + floatNumber + "|\\d+)[jJ]\\b"
        }, {
            token : "constant.numeric", // float
            regex : floatNumber
        }, {
            token : "constant.numeric", // long integer
            regex : integer + "[lL]\\b"
        }, {
            token : "constant.numeric", // integer
            regex : integer + "\\b"
        }, {
            token : keywordMapper,
            regex : "[a-zA-Z_$][a-zA-Z0-9_$]*\\b"
        }, {
            token : "keyword.operator",
            regex : "\\+|\\-|\\*|\\*\\*|\\/|\\/\\/|%|<<|>>|&|\\||\\^|~|<|>|<=|=>|==|!=|<>|="
        }, {
            token : "paren.lparen",
            regex : "[\\[\\(\\{]"
        }, {
            token : "paren.rparen",
            regex : "[\\]\\)\\}]"
        }, {
            token : "text",
            regex : "\\s+"
        } ],
        "qqstring3" : [ {
            token : "constant.language.escape",
            regex : stringEscape
        }, {
            token : "string", // multi line """ string end
            regex : '"{3}',
            next : "start"
        }, {
            defaultToken : "string"
        } ],
        "qstring3" : [ {
            token : "constant.language.escape",
            regex : stringEscape
        }, {
            token : "string",  // multi line ''' string end
            regex : "'{3}",
            next : "start"
        }, {
            defaultToken : "string"
        } ],
        "qqstring" : [{
            token : "constant.language.escape",
            regex : stringEscape
        }, {
            token : "string",
            regex : "\\\\$",
            next  : "qqstring"
        }, {
            token : "string",
            regex : '"|$',
            next  : "start"
        }, {
            defaultToken: "string"
        }],
        "qstring" : [{
            token : "constant.language.escape",
            regex : stringEscape
        }, {
            token : "string",
            regex : "\\\\$",
            next  : "qstring"
        }, {
            token : "string",
            regex : "'|$",
            next  : "start"
        }, {
            defaultToken: "string"
        }]
    };
};

oop.inherits(PythonHighlightRules, TextHighlightRules);

exports.PythonHighlightRules = PythonHighlightRules;
});