FM / util

/usr/local/lib/node_modules/npm/node_modules/postcss-selector-parser/dist/util/

/usr/local/lib/node_modules/npm/node_modules/postcss-selector-parser/dist/util

Name	Size	Mode	Actions
ensureObject.js	431	0644	edit dl rm
getProp.js	437	0644	edit dl rm
index.js	664	0644	edit dl rm
stripComments.js	521	0644	edit dl rm
unesc.js	2318	0644	edit dl rm

Edit: /usr/local/lib/node_modules/npm/node_modules/postcss-selector-parser/dist/util/unesc.js (2318B)

"use strict";

exports.__esModule = true;
exports["default"] = unesc;
// Many thanks for this post which made this migration much easier.
// https://mathiasbynens.be/notes/css-escapes

/**
 * 
 * @param {string} str 
 * @returns {[string, number]|undefined}
 */
function gobbleHex(str) {
  var lower = str.toLowerCase();
  var hex = '';
  var spaceTerminated = false;
  for (var i = 0; i < 6 && lower[i] !== undefined; i++) {
    var code = lower.charCodeAt(i);
    // check to see if we are dealing with a valid hex char [a-f|0-9]
    var valid = code >= 97 && code <= 102 || code >= 48 && code <= 57;
    // https://drafts.csswg.org/css-syntax/#consume-escaped-code-point
    spaceTerminated = code === 32;
    if (!valid) {
      break;
    }
    hex += lower[i];
  }
  if (hex.length === 0) {
    return undefined;
  }
  var codePoint = parseInt(hex, 16);
  var isSurrogate = codePoint >= 0xD800 && codePoint <= 0xDFFF;
  // Add special case for
  // "If this number is zero, or is for a surrogate, or is greater than the maximum allowed code point"
  // https://drafts.csswg.org/css-syntax/#maximum-allowed-code-point
  if (isSurrogate || codePoint === 0x0000 || codePoint > 0x10FFFF) {
    return ["\uFFFD", hex.length + (spaceTerminated ? 1 : 0)];
  }
  return [String.fromCodePoint(codePoint), hex.length + (spaceTerminated ? 1 : 0)];
}
var CONTAINS_ESCAPE = /\\/;
function unesc(str) {
  var needToProcess = CONTAINS_ESCAPE.test(str);
  if (!needToProcess) {
    return str;
  }
  var ret = "";
  for (var i = 0; i < str.length; i++) {
    if (str[i] === "\\") {
      var gobbled = gobbleHex(str.slice(i + 1, i + 7));
      if (gobbled !== undefined) {
        ret += gobbled[0];
        i += gobbled[1];
        continue;
      }

// Retain a pair of \\ if double escaped `\\\\`
      // https://github.com/postcss/postcss-selector-parser/commit/268c9a7656fb53f543dc620aa5b73a30ec3ff20e
      if (str[i + 1] === "\\") {
        ret += "\\";
        i++;
        continue;
      }

// if \\ is at the end of the string retain it
      // https://github.com/postcss/postcss-selector-parser/commit/01a6b346e3612ce1ab20219acc26abdc259ccefb
      if (str.length === i + 1) {
        ret += str[i];
      }
      continue;
    }
    ret += str[i];
  }
  return ret;
}
module.exports = exports.default;

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