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119 lines
3.1 KiB
JavaScript
119 lines
3.1 KiB
JavaScript
var BACKSLASH_HACK = '\\';
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var IMPORTANT_WORD = 'important';
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var IMPORTANT_TOKEN = '!'+IMPORTANT_WORD;
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var IMPORTANT_WORD_MATCH = new RegExp(IMPORTANT_WORD+'$', 'i');
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var IMPORTANT_TOKEN_MATCH = new RegExp(IMPORTANT_TOKEN+'$', 'i');
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var STAR_HACK = '*';
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var UNDERSCORE_HACK = '_';
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var BANG_HACK = '!';
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function wrapAll(properties) {
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var wrapped = [];
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for (var i = properties.length - 1; i >= 0; i--) {
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if (typeof properties[i][0] == 'string')
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continue;
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var single = wrapSingle(properties[i]);
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single.all = properties;
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single.position = i;
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wrapped.unshift(single);
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}
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return wrapped;
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}
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function isMultiplex(property) {
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for (var i = 1, l = property.length; i < l; i++) {
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if (property[i][0] == ',' || property[i][0] == '/')
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return true;
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}
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return false;
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}
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function hackType(property) {
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var type = false;
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var name = property[0][0];
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var lastValue = property[property.length - 1];
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if (name[0] == UNDERSCORE_HACK) {
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type = 'underscore';
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} else if (name[0] == STAR_HACK) {
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type = 'star';
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} else if (lastValue[0][0] == BANG_HACK && !lastValue[0].match(IMPORTANT_WORD_MATCH)) {
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type = 'bang';
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} else if (lastValue[0].indexOf(BANG_HACK) > 0 && !lastValue[0].match(IMPORTANT_WORD_MATCH)) {
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type = 'bang';
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} else if (lastValue[0].indexOf(BACKSLASH_HACK) > 0 && lastValue[0].indexOf(BACKSLASH_HACK) == lastValue[0].length - BACKSLASH_HACK.length - 1) {
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type = 'backslash';
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} else if (lastValue[0].indexOf(BACKSLASH_HACK) === 0 && lastValue[0].length == 2) {
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type = 'backslash';
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}
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return type;
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}
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function isImportant(property) {
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if (property.length > 1) {
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var p = property[property.length - 1][0];
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if (typeof(p) === 'string') {
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return IMPORTANT_TOKEN_MATCH.test(p);
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}
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}
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return false;
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}
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function stripImportant(property) {
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if (property.length > 0)
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property[property.length - 1][0] = property[property.length - 1][0].replace(IMPORTANT_TOKEN_MATCH, '');
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}
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function stripPrefixHack(property) {
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property[0][0] = property[0][0].substring(1);
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}
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function stripSuffixHack(property, hackType) {
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var lastValue = property[property.length - 1];
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lastValue[0] = lastValue[0]
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.substring(0, lastValue[0].indexOf(hackType == 'backslash' ? BACKSLASH_HACK : BANG_HACK))
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.trim();
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if (lastValue[0].length === 0)
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property.pop();
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}
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function wrapSingle(property) {
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var _isImportant = isImportant(property);
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if (_isImportant)
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stripImportant(property);
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var _hackType = hackType(property);
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if (_hackType == 'star' || _hackType == 'underscore')
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stripPrefixHack(property);
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else if (_hackType == 'backslash' || _hackType == 'bang')
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stripSuffixHack(property, _hackType);
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var isVariable = property[0][0].indexOf('--') === 0;
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return {
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block: isVariable && property[1] && Array.isArray(property[1][0][0]),
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components: [],
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dirty: false,
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hack: _hackType,
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important: _isImportant,
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name: property[0][0],
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multiplex: property.length > 2 ? isMultiplex(property) : false,
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position: 0,
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shorthand: false,
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unused: property.length < 2,
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value: property.slice(1),
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variable: isVariable
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};
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}
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module.exports = {
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all: wrapAll,
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single: wrapSingle
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};
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