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Diffstat (limited to 'ext/js/general/regex-util.js')
| -rw-r--r-- | ext/js/general/regex-util.js | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/ext/js/general/regex-util.js b/ext/js/general/regex-util.js index 298189d4..726ce9f2 100644 --- a/ext/js/general/regex-util.js +++ b/ext/js/general/regex-util.js @@ -61,7 +61,7 @@ export class RegexUtil { * Applies the replacement string for a given regular expression match. * @param {string} replacement The replacement string that follows the format of the standard * JavaScript regular expression replacement string. - * @param {object} match A match object returned from RegExp.match. + * @param {RegExpMatchArray} match A match object returned from RegExp.match. * @returns {string} A new string with the pattern replacement applied. */ static applyMatchReplacement(replacement, match) { @@ -79,11 +79,13 @@ export class RegexUtil { return groups[g2]; } } else { + let {index} = match; + if (typeof index !== 'number') { index = 0; } switch (g0) { case '$': return '$'; case '&': return match[0]; - case '`': return replacement.substring(0, match.index); - case '\'': return replacement.substring(match.index + g0.length); + case '`': return replacement.substring(0, index); + case '\'': return replacement.substring(index + g0.length); } } return g0; |