node_modules/xregexp/lib/addons/build.js

"use strict";

var _interopRequireDefault = require("@babel/runtime-corejs3/helpers/interopRequireDefault");

var _Object$defineProperty = require("@babel/runtime-corejs3/core-js-stable/object/define-property");

_Object$defineProperty(exports, "__esModule", {
  value: true
});

exports.default = void 0;

var _concat = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/concat"));

var _includes = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/includes"));

var _map = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/map"));

var _reduce = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/reduce"));

/*!
 * XRegExp.build 4.3.0
 * <xregexp.com>
 * Steven Levithan (c) 2012-present MIT License
 */
var _default = function _default(XRegExp) {
  var REGEX_DATA = 'xregexp';
  var subParts = /(\()(?!\?)|\\([1-9]\d*)|\\[\s\S]|\[(?:[^\\\]]|\\[\s\S])*\]/g;
  var parts = XRegExp.union([/\({{([\w$]+)}}\)|{{([\w$]+)}}/, subParts], 'g', {
    conjunction: 'or'
  });
  /**
   * Strips a leading `^` and trailing unescaped `$`, if both are present.
   *
   * @private
   * @param {String} pattern Pattern to process.
   * @returns {String} Pattern with edge anchors removed.
   */

  function deanchor(pattern) {
    // Allow any number of empty noncapturing groups before/after anchors, because regexes
    // built/generated by XRegExp sometimes include them
    var leadingAnchor = /^(?:\(\?:\))*\^/;
    var trailingAnchor = /\$(?:\(\?:\))*$/;

    if (leadingAnchor.test(pattern) && trailingAnchor.test(pattern) && // Ensure that the trailing `$` isn't escaped
    trailingAnchor.test(pattern.replace(/\\[\s\S]/g, ''))) {
      return pattern.replace(leadingAnchor, '').replace(trailingAnchor, '');
    }

    return pattern;
  }
  /**
   * Converts the provided value to an XRegExp. Native RegExp flags are not preserved.
   *
   * @private
   * @param {String|RegExp} value Value to convert.
   * @param {Boolean} [addFlagX] Whether to apply the `x` flag in cases when `value` is not
   *   already a regex generated by XRegExp
   * @returns {RegExp} XRegExp object with XRegExp syntax applied.
   */


  function asXRegExp(value, addFlagX) {
    var flags = addFlagX ? 'x' : '';
    return XRegExp.isRegExp(value) ? value[REGEX_DATA] && value[REGEX_DATA].captureNames ? // Don't recompile, to preserve capture names
    value : // Recompile as XRegExp
    XRegExp(value.source, flags) : // Compile string as XRegExp
    XRegExp(value, flags);
  }

  function interpolate(substitution) {
    return substitution instanceof RegExp ? substitution : XRegExp.escape(substitution);
  }

  function reduceToSubpatternsObject(subpatterns, interpolated, subpatternIndex) {
    subpatterns["subpattern".concat(subpatternIndex)] = interpolated;
    return subpatterns;
  }

  function embedSubpatternAfter(raw, subpatternIndex, rawLiterals) {
    var hasSubpattern = subpatternIndex < rawLiterals.length - 1;
    return raw + (hasSubpattern ? "{{subpattern".concat(subpatternIndex, "}}") : '');
  }
  /**
   * Provides tagged template literals that create regexes with XRegExp syntax and flags. The
   * provided pattern is handled as a raw string, so backslashes don't need to be escaped.
   *
   * Interpolation of strings and regexes shares the features of `XRegExp.build`. Interpolated
   * patterns are treated as atomic units when quantified, interpolated strings have their special
   * characters escaped, a leading `^` and trailing unescaped `$` are stripped from interpolated
   * regexes if both are present, and any backreferences within an interpolated regex are
   * rewritten to work within the overall pattern.
   *
   * @memberOf XRegExp
   * @param {String} [flags] Any combination of XRegExp flags.
   * @returns {Function} Handler for template literals that construct regexes with XRegExp syntax.
   * @example
   *
   * const h12 = /1[0-2]|0?[1-9]/;
   * const h24 = /2[0-3]|[01][0-9]/;
   * const hours = XRegExp.tag('x')`${h12} : | ${h24}`;
   * const minutes = /^[0-5][0-9]$/;
   * // Note that explicitly naming the 'minutes' group is required for named backreferences
   * const time = XRegExp.tag('x')`^ ${hours} (?<minutes>${minutes}) $`;
   * time.test('10:59'); // -> true
   * XRegExp.exec('10:59', time).minutes; // -> '59'
   */


  XRegExp.tag = function (flags) {
    return function (literals) {
      var _context, _context2;

      for (var _len = arguments.length, substitutions = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        substitutions[_key - 1] = arguments[_key];
      }

      var subpatterns = (0, _reduce.default)(_context = (0, _map.default)(substitutions).call(substitutions, interpolate)).call(_context, reduceToSubpatternsObject, {});
      var pattern = (0, _map.default)(_context2 = literals.raw).call(_context2, embedSubpatternAfter).join('');
      return XRegExp.build(pattern, subpatterns, flags);
    };
  };
  /**
   * Builds regexes using named subpatterns, for readability and pattern reuse. Backreferences in
   * the outer pattern and provided subpatterns are automatically renumbered to work correctly.
   * Native flags used by provided subpatterns are ignored in favor of the `flags` argument.
   *
   * @memberOf XRegExp
   * @param {String} pattern XRegExp pattern using `{{name}}` for embedded subpatterns. Allows
   *   `({{name}})` as shorthand for `(?<name>{{name}})`. Patterns cannot be embedded within
   *   character classes.
   * @param {Object} subs Lookup object for named subpatterns. Values can be strings or regexes. A
   *   leading `^` and trailing unescaped `$` are stripped from subpatterns, if both are present.
   * @param {String} [flags] Any combination of XRegExp flags.
   * @returns {RegExp} Regex with interpolated subpatterns.
   * @example
   *
   * const time = XRegExp.build('(?x)^ {{hours}} ({{minutes}}) $', {
   *   hours: XRegExp.build('{{h12}} : | {{h24}}', {
   *     h12: /1[0-2]|0?[1-9]/,
   *     h24: /2[0-3]|[01][0-9]/
   *   }, 'x'),
   *   minutes: /^[0-5][0-9]$/
   * });
   * time.test('10:59'); // -> true
   * XRegExp.exec('10:59', time).minutes; // -> '59'
   */


  XRegExp.build = function (pattern, subs, flags) {
    flags = flags || ''; // Used with `asXRegExp` calls for `pattern` and subpatterns in `subs`, to work around how
    // some browsers convert `RegExp('\n')` to a regex that contains the literal characters `\`
    // and `n`. See more details at <https://github.com/slevithan/xregexp/pull/163>.

    var addFlagX = (0, _includes.default)(flags).call(flags, 'x');
    var inlineFlags = /^\(\?([\w$]+)\)/.exec(pattern); // Add flags within a leading mode modifier to the overall pattern's flags

    if (inlineFlags) {
      flags = XRegExp._clipDuplicates(flags + inlineFlags[1]);
    }

    var data = {};

    for (var p in subs) {
      if (subs.hasOwnProperty(p)) {
        // Passing to XRegExp enables extended syntax and ensures independent validity,
        // lest an unescaped `(`, `)`, `[`, or trailing `\` breaks the `(?:)` wrapper. For
        // subpatterns provided as native regexes, it dies on octals and adds the property
        // used to hold extended regex instance data, for simplicity.
        var sub = asXRegExp(subs[p], addFlagX);
        data[p] = {
          // Deanchoring allows embedding independently useful anchored regexes. If you
          // really need to keep your anchors, double them (i.e., `^^...$$`).
          pattern: deanchor(sub.source),
          names: sub[REGEX_DATA].captureNames || []
        };
      }
    } // Passing to XRegExp dies on octals and ensures the outer pattern is independently valid;
    // helps keep this simple. Named captures will be put back.


    var patternAsRegex = asXRegExp(pattern, addFlagX); // 'Caps' is short for 'captures'

    var numCaps = 0;
    var numPriorCaps;
    var numOuterCaps = 0;
    var outerCapsMap = [0];
    var outerCapNames = patternAsRegex[REGEX_DATA].captureNames || [];
    var output = patternAsRegex.source.replace(parts, function ($0, $1, $2, $3, $4) {
      var subName = $1 || $2;
      var capName;
      var intro;
      var localCapIndex; // Named subpattern

      if (subName) {
        var _context3;

        if (!data.hasOwnProperty(subName)) {
          throw new ReferenceError("Undefined property ".concat($0));
        } // Named subpattern was wrapped in a capturing group


        if ($1) {
          capName = outerCapNames[numOuterCaps];
          outerCapsMap[++numOuterCaps] = ++numCaps; // If it's a named group, preserve the name. Otherwise, use the subpattern name
          // as the capture name

          intro = "(?<".concat(capName || subName, ">");
        } else {
          intro = '(?:';
        }

        numPriorCaps = numCaps;
        var rewrittenSubpattern = data[subName].pattern.replace(subParts, function (match, paren, backref) {
          // Capturing group
          if (paren) {
            capName = data[subName].names[numCaps - numPriorCaps];
            ++numCaps; // If the current capture has a name, preserve the name

            if (capName) {
              return "(?<".concat(capName, ">");
            } // Backreference

          } else if (backref) {
            localCapIndex = +backref - 1; // Rewrite the backreference

            return data[subName].names[localCapIndex] ? // Need to preserve the backreference name in case using flag `n`
            "\\k<".concat(data[subName].names[localCapIndex], ">") : "\\".concat(+backref + numPriorCaps);
          }

          return match;
        });
        return (0, _concat.default)(_context3 = "".concat(intro)).call(_context3, rewrittenSubpattern, ")");
      } // Capturing group


      if ($3) {
        capName = outerCapNames[numOuterCaps];
        outerCapsMap[++numOuterCaps] = ++numCaps; // If the current capture has a name, preserve the name

        if (capName) {
          return "(?<".concat(capName, ">");
        } // Backreference

      } else if ($4) {
        localCapIndex = +$4 - 1; // Rewrite the backreference

        return outerCapNames[localCapIndex] ? // Need to preserve the backreference name in case using flag `n`
        "\\k<".concat(outerCapNames[localCapIndex], ">") : "\\".concat(outerCapsMap[+$4]);
      }

      return $0;
    });
    return XRegExp(output, flags);
  };
};

exports.default = _default;
module.exports = exports["default"];