63 lines
1.5 KiB
JavaScript
63 lines
1.5 KiB
JavaScript
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var Marker = require('../tokenizer/marker');
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function is(value, separator, isSeparatorRegex) {
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return isSeparatorRegex
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? separator.test(value)
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: value === separator;
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}
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function split(value, separator) {
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var openLevel = Marker.OPEN_ROUND_BRACKET;
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var closeLevel = Marker.CLOSE_ROUND_BRACKET;
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var level = 0;
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var cursor = 0;
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var lastStart = 0;
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var lastValue;
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var lastCharacter;
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var len = value.length;
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var parts = [];
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var isSeparatorRegex = typeof (separator) == 'object' && 'exec' in separator;
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if (!isSeparatorRegex && value.indexOf(separator) == -1) {
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return [value];
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}
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if (value.indexOf(openLevel) == -1) {
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return value.split(separator);
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}
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while (cursor < len) {
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if (value[cursor] == openLevel) {
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level++;
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} else if (value[cursor] == closeLevel) {
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level--;
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}
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if (level === 0 && cursor > 0 && cursor + 1 < len && is(value[cursor], separator, isSeparatorRegex)) {
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parts.push(value.substring(lastStart, cursor));
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if (isSeparatorRegex && separator.exec(value[cursor]).length > 1) {
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parts.push(value[cursor]);
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}
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lastStart = cursor + 1;
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}
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cursor++;
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}
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if (lastStart < cursor + 1) {
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lastValue = value.substring(lastStart);
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lastCharacter = lastValue[lastValue.length - 1];
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if (is(lastCharacter, separator, isSeparatorRegex)) {
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lastValue = lastValue.substring(0, lastValue.length - 1);
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}
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parts.push(lastValue);
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}
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return parts;
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}
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module.exports = split;
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