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Add accent insensitive filtering support. #1249

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Add accent insensitive filtering support. #1249

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6 changes: 6 additions & 0 deletions dist/js/bootstrap-multiselect.js
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Original file line number Diff line number Diff line change
Expand Up @@ -429,6 +429,7 @@
selectAllJustVisible: true,
enableFiltering: false,
enableCaseInsensitiveFiltering: false,
enableAccentInsensitiveFiltering: false,
enableFullValueFiltering: false,
enableClickableOptGroups: false,
enableCollapsibleOptGroups: false,
Expand Down Expand Up @@ -1260,6 +1261,11 @@
this.query = this.query.toLowerCase();
}

if (this.options.enableAccentInsensitiveFiltering) {
filterCandidate = filterCandidate.normalize("NFD").replace(/[\u0300-\u036f]/g, "");
this.query = this.query.normalize("NFD").replace(/[\u0300-\u036f]/g, "");
}

if (this.options.enableFullValueFiltering && this.options.filterBehavior !== 'both') {
var valueToMatch = filterCandidate.trim().substring(0, this.query.length);
if (this.query.indexOf(valueToMatch) > -1) {
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6 changes: 6 additions & 0 deletions types/bootstrap-multiselect/index.d.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -325,6 +325,12 @@ interface MultiSelectOptions {
*/
enableCaseInsensitiveFiltering?: boolean;

/**
* The filter as configured above will use accent sensitive filtering,
* by setting enableAccentInsensitiveFiltering to true this behavior can be changed to use accent insensitive filtering.
*/
enableAccentInsensitiveFiltering?: boolean;

/**
* Set to true to enable full value filtering, that is all options are shown where the query is a prefix of.
*/
Expand Down