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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
function escapeRegExp(str) {
const reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
return str.replace(reRegExpChar, "\\$&");
}
/**
* Ignore doing outline matches for less than 3 whitespaces
*
* @memberof utils/source-search
* @static
*/
function ignoreWhiteSpace(str) {
return /^\s{0,2}$/.test(str) ? "(?!\\s*.*)" : str;
}
function wholeMatch(query, wholeWord) {
if (query === "" || !wholeWord) {
return query;
}
return `\\b${query}\\b`;
}
function buildFlags(caseSensitive, isGlobal) {
if (caseSensitive && isGlobal) {
return "g";
}
if (!caseSensitive && isGlobal) {
return "gi";
}
if (!caseSensitive && !isGlobal) {
return "i";
}
return null;
}
export default function buildQuery(
originalQuery,
modifiers,
{ isGlobal = false, ignoreSpaces = false }
) {
const { caseSensitive, regexMatch, wholeWord } = modifiers;
if (originalQuery === "") {
return new RegExp(originalQuery);
}
// Remove the backslashes at the end of the query as it
// breaks the RegExp
let query = originalQuery.replace(/\\$/, "");
// If we don't want to do a regexMatch, we need to escape all regex related characters
// so they would actually match.
if (!regexMatch) {
query = escapeRegExp(query);
}
// ignoreWhiteSpace might return a negative lookbehind, and in such case, we want it
// to be consumed as a RegExp part by the callsite, so this needs to be called after
// the regexp is escaped.
if (ignoreSpaces) {
query = ignoreWhiteSpace(query);
}
query = wholeMatch(query, wholeWord);
const flags = buildFlags(caseSensitive, isGlobal);
if (flags) {
return new RegExp(query, flags);
}
return new RegExp(query);
}
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