104 lines
2.7 KiB
JavaScript
104 lines
2.7 KiB
JavaScript
// @ts-nocheck
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'use strict';
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const _ = require('lodash');
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const report = require('../../utils/report');
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const ruleMessages = require('../../utils/ruleMessages');
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const validateOptions = require('../../utils/validateOptions');
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const valueParser = require('postcss-value-parser');
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const ruleName = 'function-max-empty-lines';
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const messages = ruleMessages(ruleName, {
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expected: (max) => `Expected no more than ${max} empty ${max === 1 ? 'line' : 'lines'}`,
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});
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function placeIndexOnValueStart(decl) {
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return decl.prop.length + decl.raws.between.length - 1;
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}
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function rule(max, options, context) {
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const maxAdjacentNewlines = max + 1;
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return (root, result) => {
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const validOptions = validateOptions(result, ruleName, {
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actual: max,
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possible: _.isNumber,
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});
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if (!validOptions) {
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return;
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}
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const violatedCRLFNewLinesRegex = new RegExp(`(?:\r\n){${maxAdjacentNewlines + 1},}`);
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const violatedLFNewLinesRegex = new RegExp(`\n{${maxAdjacentNewlines + 1},}`);
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const allowedLFNewLinesString = context.fix ? '\n'.repeat(maxAdjacentNewlines) : '';
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const allowedCRLFNewLinesString = context.fix ? '\r\n'.repeat(maxAdjacentNewlines) : '';
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root.walkDecls((decl) => {
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if (!decl.value.includes('(')) {
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return;
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}
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const stringValue = decl.raws.value ? decl.raws.value.raw : decl.value;
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const splittedValue = [];
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let sourceIndexStart = 0;
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valueParser(stringValue).walk((node) => {
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if (
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node.type !== 'function' /* ignore non functions */ ||
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node.value.length === 0 /* ignore sass lists */
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) {
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return;
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}
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const stringifiedNode = valueParser.stringify(node);
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if (
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!violatedLFNewLinesRegex.test(stringifiedNode) &&
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!violatedCRLFNewLinesRegex.test(stringifiedNode)
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) {
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return;
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}
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if (context.fix) {
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const newNodeString = stringifiedNode
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.replace(new RegExp(violatedLFNewLinesRegex, 'gm'), allowedLFNewLinesString)
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.replace(new RegExp(violatedCRLFNewLinesRegex, 'gm'), allowedCRLFNewLinesString);
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splittedValue.push([
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stringValue.slice(sourceIndexStart, node.sourceIndex),
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newNodeString,
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]);
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sourceIndexStart = node.sourceIndex + stringifiedNode.length;
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} else {
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report({
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message: messages.expected(max),
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node: decl,
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index: placeIndexOnValueStart(decl) + node.sourceIndex,
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result,
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ruleName,
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});
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}
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});
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if (context.fix && splittedValue.length > 0) {
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const updatedValue =
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splittedValue.reduce((acc, curr) => acc + curr[0] + curr[1], '') +
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stringValue.slice(sourceIndexStart);
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if (decl.raws.value) {
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decl.raws.value.raw = updatedValue;
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} else {
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decl.value = updatedValue;
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}
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}
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});
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};
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}
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rule.ruleName = ruleName;
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rule.messages = messages;
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module.exports = rule;
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