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Allow searching for words with apostrophes.

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Previously, because apostrophes were 'banned' characters, searching for
them wouldn't work. That meant you couldn't find words like "I'm". Now
we just replace the apostrophe with a space and things "just work"
because of the nature of SQLite tokenization and prefix queries.
This commit is contained in:
Greyson Parrelli 2018-06-15 12:18:39 -07:00
parent afec9e8cb0
commit 5f99470226
1 changed files with 5 additions and 0 deletions
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5
src/org/thoughtcrime/securesms/search/SearchRepository.java
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@ -119,6 +119,9 @@ class SearchRepository {
/**
* Unfortunately {@link DatabaseUtils#sqlEscapeString(String)} is not sufficient for our purposes.
* MATCH queries have a separate format of their own that disallow most "special" characters.
*
* Also, SQLite can't search for apostrophes, meaning we can't normally find words like "I'm".
* However, if we replace the apostrophe with a space, then the query will find the match.
*/
private String sanitizeQuery(@NonNull String query) {
StringBuilder out = new StringBuilder();
@ -127,6 +130,8 @@ class SearchRepository {
char c = query.charAt(i);
if (!BANNED_CHARACTERS.contains(c)) {
out.append(c);
} else if (c == '\'') {
out.append(' ');
}
}