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							116 lines
						
					
					
						
							2.7 KiB
						
					
					
				
			
		
		
	
	
							116 lines
						
					
					
						
							2.7 KiB
						
					
					
				"use strict";
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Object.defineProperty(exports, "__esModule", {
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  value: true
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});
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exports.default = highlight;
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exports.getChalk = getChalk;
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exports.shouldHighlight = shouldHighlight;
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var _jsTokens = require("js-tokens");
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var _helperValidatorIdentifier = require("@babel/helper-validator-identifier");
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var _chalk = require("chalk");
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const sometimesKeywords = new Set(["as", "async", "from", "get", "of", "set"]);
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function getDefs(chalk) {
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  return {
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    keyword: chalk.cyan,
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    capitalized: chalk.yellow,
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    jsxIdentifier: chalk.yellow,
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    punctuator: chalk.yellow,
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    number: chalk.magenta,
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    string: chalk.green,
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    regex: chalk.magenta,
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    comment: chalk.grey,
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    invalid: chalk.white.bgRed.bold
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  };
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}
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const NEWLINE = /\r\n|[\n\r\u2028\u2029]/;
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const BRACKET = /^[()[\]{}]$/;
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let tokenize;
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{
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  const JSX_TAG = /^[a-z][\w-]*$/i;
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  const getTokenType = function (token, offset, text) {
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    if (token.type === "name") {
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      if ((0, _helperValidatorIdentifier.isKeyword)(token.value) || (0, _helperValidatorIdentifier.isStrictReservedWord)(token.value, true) || sometimesKeywords.has(token.value)) {
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        return "keyword";
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      }
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      if (JSX_TAG.test(token.value) && (text[offset - 1] === "<" || text.slice(offset - 2, offset) == "</")) {
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        return "jsxIdentifier";
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      }
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      if (token.value[0] !== token.value[0].toLowerCase()) {
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        return "capitalized";
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      }
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    }
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    if (token.type === "punctuator" && BRACKET.test(token.value)) {
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      return "bracket";
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    }
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    if (token.type === "invalid" && (token.value === "@" || token.value === "#")) {
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      return "punctuator";
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    }
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    return token.type;
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  };
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  tokenize = function* (text) {
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    let match;
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    while (match = _jsTokens.default.exec(text)) {
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      const token = _jsTokens.matchToToken(match);
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      yield {
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        type: getTokenType(token, match.index, text),
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        value: token.value
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      };
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    }
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  };
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}
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function highlightTokens(defs, text) {
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  let highlighted = "";
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  for (const {
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    type,
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    value
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  } of tokenize(text)) {
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    const colorize = defs[type];
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    if (colorize) {
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      highlighted += value.split(NEWLINE).map(str => colorize(str)).join("\n");
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    } else {
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      highlighted += value;
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    }
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  }
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  return highlighted;
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}
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function shouldHighlight(options) {
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  return !!_chalk.supportsColor || options.forceColor;
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}
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function getChalk(options) {
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  return options.forceColor ? new _chalk.constructor({
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    enabled: true,
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    level: 1
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  }) : _chalk;
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}
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function highlight(code, options = {}) {
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  if (code !== "" && shouldHighlight(options)) {
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    const chalk = getChalk(options);
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    const defs = getDefs(chalk);
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    return highlightTokens(defs, code);
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  } else {
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    return code;
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  }
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} |