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Find matches using the Intl.Collator #84

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Find matches using the Intl.Collator #84

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8e2147d
Put functions in matches array instead of regexes
Sjord Feb 21, 2015
125c801
Get matchers from functions
Sjord Feb 21, 2015
b71cc4a
Use Intl.Collator to implement contains and startswith
Sjord Feb 21, 2015
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35 changes: 31 additions & 4 deletions jquery.select-to-autocomplete.js
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,8 @@ THE SOFTWARE.
'minLength': 0,
'delay': 0,
'autoFocus': true,
'locale': 'en',
'sensitivity': 'base',
handle_invalid_input: function( context ) {
var selected_finder = 'option:selected:first';
if ( context.settings['remove-valueless-options'] ) {
Expand Down Expand Up @@ -179,16 +181,41 @@ THE SOFTWARE.

var adapters = {
jquery_ui: function( context ) {
function create_str_contains(term) {
var locale = context.settings['locale'];
var sensitivity = context.settings['sensitivity'];
var collator = Intl.Collator(locale, {'sensitivity': sensitivity});
return function (haystack) {
for (var i = 0; i < 1 + haystack.length - term.length; i++) {
var first_part = haystack.slice(i, i + term.length);
if (collator.compare(first_part, term) === 0) {
return true;
}
}
return false;
};
}

function create_str_startswith(term) {
var locale = context.settings['locale'];
var sensitivity = context.settings['sensitivity'];
var collator = Intl.Collator(locale, {'sensitivity': sensitivity});
return function (haystack) {
var first_part = haystack.slice(0, term.length);
return collator.compare(first_part, term) === 0;
};
}

// loose matching of search terms
var filter_options = function( term ) {
var split_term = term.split(' ');
var matchers = [];
for (var i=0; i < split_term.length; i++) {
if ( split_term[i].length > 0 ) {
var matcher = {};
matcher['partial'] = new RegExp( $.ui.autocomplete.escapeRegex( split_term[i] ), "i" );
matcher['partial'] = create_str_contains( split_term[i] );
if ( context.settings['relevancy-sorting'] ) {
matcher['strict'] = new RegExp( "^" + $.ui.autocomplete.escapeRegex( split_term[i] ), "i" );
matcher['strict'] = create_str_startswith( split_term[i] );
}
matchers.push( matcher );
}
Expand All @@ -201,12 +228,12 @@ THE SOFTWARE.
var split_option_matches = option.matches.split(' ');
}
for ( var i=0; i < matchers.length; i++ ) {
if ( matchers[i]['partial'].test( option.matches ) ) {
if ( matchers[i]['partial']( option.matches ) ) {
partial_matches++;
}
if ( context.settings['relevancy-sorting'] ) {
for (var q=0; q < split_option_matches.length; q++) {
if ( matchers[i]['strict'].test( split_option_matches[q] ) ) {
if ( matchers[i]['strict']( split_option_matches[q] ) ) {
strict_match = true;
break;
}
Expand Down