46 lines
1.5 KiB
JavaScript
46 lines
1.5 KiB
JavaScript
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/**
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* Split a string into tokens separated by whitespace, except all text within parentheses
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* is treated as a single token (whitespace is ignored within parentheses).
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*
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* Unlike String.split(' '), multiple consecutive space characters are collapsed and
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* removed from the returned array (including leading and trailing spaces).
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*
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* For example:
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* `tokenizeWithParentheses("3px calc(var(--x) / 2) 9px 0 ")`
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* => `["3px", "calc(var(--x) / 2)", "9px", "0"]`
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*
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* @returns The array of tokens. Returns an empty array if the string was empty or contained only whitespace.
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*/
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export function tokenizeWithParentheses(value) {
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var parts = [];
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var partStart = 0;
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var parens = 0;
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for (var i = 0; i < value.length; i++) {
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switch (value[i]) {
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case '(':
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parens++;
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break;
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case ')':
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if (parens) {
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parens--;
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}
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break;
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case '\t':
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case ' ':
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if (!parens) {
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// Add the new part if it's not an empty string
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if (i > partStart) {
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parts.push(value.substring(partStart, i));
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}
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partStart = i + 1;
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}
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break;
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}
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}
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// Add the last part
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if (partStart < value.length) {
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parts.push(value.substring(partStart));
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}
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return parts;
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}
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//# sourceMappingURL=tokenizeWithParentheses.js.map
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