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refactor(docs-infra): simplify regex in search WebWorker (#41693)

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This commit simplifies a regex used in angular.io's search WebWorker. It
also updates some comments to add more context on what the code does.

PR Close #41693
This commit is contained in:
George Kalpakas 2021-04-18 16:14:48 +03:00 committed by Andrew Kushnir
parent 343b9d0ddc
commit f10a7e1f7e
1 changed files with 3 additions and 2 deletions
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5
aio/src/app/search/search.worker.ts
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@ -119,7 +119,8 @@ function queryIndex(query: string): PageInfo[] {
try { try {
if (query.length) { if (query.length) {
// First try a query where every term must be present // First try a query where every term must be present
const queryAll = query.replace(/(^|\s)([^\s]+)/g, '$1+$2'); // (see https://lunrjs.com/guides/searching.html#term-presence)
const queryAll = query.replace(/\S+/g, '+$&');
let results = index.search(queryAll); let results = index.search(queryAll);
// If that was too restrictive just query for any term to be present // If that was too restrictive just query for any term to be present
@ -129,7 +130,7 @@ function queryIndex(query: string): PageInfo[] {
// If that is still too restrictive then search in the title for the first word in the query // If that is still too restrictive then search in the title for the first word in the query
if (results.length === 0) { if (results.length === 0) {
// E.g. if the search is "ngCont guide" then we search for "ngCont guide title:ngCont*" // E.g. if the search is "ngCont guide" then we search for "ngCont guide title:*ngCont*"
const titleQuery = 'title:*' + query.split(' ', 1)[0] + '*'; const titleQuery = 'title:*' + query.split(' ', 1)[0] + '*';
results = index.search(query + ' ' + titleQuery); results = index.search(query + ' ' + titleQuery);
} }