160 lines
3.8 KiB
JavaScript
160 lines
3.8 KiB
JavaScript
'use strict';
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var parser = require('postcss-value-parser');
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function convert(value) {
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if (value && value.length === 2 && value[0] === 'span' && parseInt(value[1], 10) > 0) {
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return [false, parseInt(value[1], 10)];
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}
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if (value && value.length === 1 && parseInt(value[0], 10) > 0) {
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return [parseInt(value[0], 10), false];
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}
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return [false, false];
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}
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function translate(values, startIndex, endIndex) {
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var startValue = values[startIndex];
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var endValue = values[endIndex];
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if (!startValue) {
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return [false, false];
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}
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var _convert = convert(startValue),
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start = _convert[0],
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spanStart = _convert[1];
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var _convert2 = convert(endValue),
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end = _convert2[0],
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spanEnd = _convert2[1];
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if (start && !endValue) {
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return [start, false];
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}
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if (spanStart && end) {
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return [end - spanStart, spanStart];
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}
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if (start && spanEnd) {
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return [start, spanEnd];
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}
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if (start && end) {
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return [start, end - start];
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}
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return [false, false];
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}
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function parse(decl) {
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var node = parser(decl.value);
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var values = [];
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var current = 0;
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values[current] = [];
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for (var _iterator = node.nodes, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
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var _ref;
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if (_isArray) {
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if (_i >= _iterator.length) break;
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_ref = _iterator[_i++];
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} else {
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_i = _iterator.next();
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if (_i.done) break;
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_ref = _i.value;
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}
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var i = _ref;
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if (i.type === 'div') {
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current += 1;
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values[current] = [];
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} else if (i.type === 'word') {
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values[current].push(i.value);
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}
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}
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return values;
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}
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function parseTemplateShortcut(decl) {
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var node = parser(decl.value, { loose: true });
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var values = [];
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var current = 0;
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values[current] = [];
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for (var _iterator2 = node.nodes, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : _iterator2[Symbol.iterator]();;) {
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var _ref2;
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if (_isArray2) {
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if (_i2 >= _iterator2.length) break;
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_ref2 = _iterator2[_i2++];
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} else {
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_i2 = _iterator2.next();
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if (_i2.done) break;
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_ref2 = _i2.value;
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}
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var i = _ref2;
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if (i.type === 'div') {
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current += 1;
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values[current] = [];
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} else {
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values[current].push(parser.stringify(i));
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}
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}
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return values;
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}
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function walkRepeat(node) {
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var fixed = [];
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for (var _iterator3 = node.nodes, _isArray3 = Array.isArray(_iterator3), _i3 = 0, _iterator3 = _isArray3 ? _iterator3 : _iterator3[Symbol.iterator]();;) {
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var _ref3;
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if (_isArray3) {
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if (_i3 >= _iterator3.length) break;
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_ref3 = _iterator3[_i3++];
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} else {
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_i3 = _iterator3.next();
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if (_i3.done) break;
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_ref3 = _i3.value;
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}
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var i = _ref3;
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if (i.nodes) {
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walkRepeat(i);
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}
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fixed.push(i);
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if (i.type === 'function' && i.value === 'repeat') {
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var first = i.nodes.shift();
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if (first) {
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var count = first.value;
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i.nodes.shift();
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i.value = '';
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fixed.push({ type: 'word', value: '[' + count + ']' });
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}
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}
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}
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node.nodes = fixed;
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}
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function changeRepeat(value) {
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var ast = parser(value);
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walkRepeat(ast);
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return ast.toString();
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}
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module.exports = {
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parse: parse,
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translate: translate,
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changeRepeat: changeRepeat,
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parseTemplateShortcut: parseTemplateShortcut
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}; |