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Update x-listops.js

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Added prefix and suffix options to 'append' and 'prepend' operators
This commit is contained in:
William Jackson 2015-10-27 10:17:07 +02:00
parent 3e445b8853
commit 817882a404
1 changed files with 12 additions and 2 deletions
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14
core/modules/filters/x-listops.js
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@ -123,11 +123,16 @@ Extended filter operators to manipulate the current list.
*/ */
exports.append = function (source, operator, options) { exports.append = function (source, operator, options) {
var results = prepare_results(source), var results = prepare_results(source),
count = parseInt(operator.suffix) || 1,
append = $tw.utils.parseStringArray(operator.operand); append = $tw.utils.parseStringArray(operator.operand);
if (append === "") { if (append === "") {
return results; return results;
} }
return results.concat(append); if (operator.prefix) {
return results.concat(append.slice(-count));
} else {
return results.concat(append.slice(0, count));
}
}; };
/* /*
@ -135,11 +140,16 @@ Extended filter operators to manipulate the current list.
*/ */
exports.prepend = function (source, operator, options) { exports.prepend = function (source, operator, options) {
var results = prepare_results(source), var results = prepare_results(source),
count = parseInt(operator.suffix) || 1,
prepend = $tw.utils.parseStringArray(operator.operand); prepend = $tw.utils.parseStringArray(operator.operand);
if (prepend === "") { if (prepend === "") {
return results; return results;
} }
return prepend.concat(results); if (operator.prefix) {
return prepend.slice(-count).concat(results);
} else {
return prepend.slice(0, count).concat(results);
}
}; };
/* /*