141 lines
3.7 KiB
JavaScript
141 lines
3.7 KiB
JavaScript
'use strict';
|
|
|
|
const valueParser = require('postcss-value-parser');
|
|
|
|
const atRuleParamIndex = require('../../utils/atRuleParamIndex');
|
|
const declarationValueIndex = require('../../utils/declarationValueIndex');
|
|
const report = require('../../utils/report');
|
|
const ruleMessages = require('../../utils/ruleMessages');
|
|
const { isAtRule } = require('../../utils/typeGuards');
|
|
const validateOptions = require('../../utils/validateOptions');
|
|
|
|
const ruleName = 'number-no-trailing-zeros';
|
|
|
|
const messages = ruleMessages(ruleName, {
|
|
rejected: 'Unexpected trailing zero(s)',
|
|
});
|
|
|
|
const meta = {
|
|
url: 'https://stylelint.io/user-guide/rules/number-no-trailing-zeros',
|
|
fixable: true,
|
|
deprecated: true,
|
|
};
|
|
|
|
/** @type {import('stylelint').Rule} */
|
|
const rule = (primary, _secondaryOptions, context) => {
|
|
return (root, result) => {
|
|
const validOptions = validateOptions(result, ruleName, { actual: primary });
|
|
|
|
if (!validOptions) {
|
|
return;
|
|
}
|
|
|
|
root.walkAtRules((atRule) => {
|
|
if (atRule.name.toLowerCase() === 'import') {
|
|
return;
|
|
}
|
|
|
|
check(atRule, atRule.params);
|
|
});
|
|
|
|
root.walkDecls((decl) => check(decl, decl.value));
|
|
|
|
/**
|
|
* @param {import('postcss').AtRule | import('postcss').Declaration} node
|
|
* @param {string} value
|
|
*/
|
|
function check(node, value) {
|
|
/** @type {Array<{ startIndex: number, endIndex: number }>} */
|
|
const fixPositions = [];
|
|
|
|
// Get out quickly if there are no periods
|
|
if (!value.includes('.')) {
|
|
return;
|
|
}
|
|
|
|
valueParser(value).walk((valueNode) => {
|
|
// Ignore `url` function
|
|
if (valueNode.type === 'function' && valueNode.value.toLowerCase() === 'url') {
|
|
return false;
|
|
}
|
|
|
|
// Ignore strings, comments, etc
|
|
if (valueNode.type !== 'word') {
|
|
return;
|
|
}
|
|
|
|
const match = /\.(\d{0,100}?)(0+)(?:\D|$)/.exec(valueNode.value);
|
|
|
|
// match[1] is any numbers between the decimal and our trailing zero, could be empty
|
|
// match[2] is our trailing zero(s)
|
|
if (match == null || match[1] == null || match[2] == null) {
|
|
return;
|
|
}
|
|
|
|
// our index is:
|
|
// the index of our valueNode +
|
|
// the index of our match +
|
|
// 1 for our decimal +
|
|
// the length of our potential non-zero number match (match[1])
|
|
const index = valueNode.sourceIndex + match.index + 1 + match[1].length;
|
|
|
|
// our startIndex is identical to our index except when we have only
|
|
// trailing zeros after our decimal. in that case we don't need the decimal
|
|
// either so we move our index back by 1.
|
|
const startIndex = match[1].length > 0 ? index : index - 1;
|
|
|
|
// our end index is our original index + the length of our trailing zeros
|
|
const endIndex = index + match[2].length;
|
|
|
|
if (context.fix) {
|
|
fixPositions.unshift({
|
|
startIndex,
|
|
endIndex,
|
|
});
|
|
|
|
return;
|
|
}
|
|
|
|
const baseIndex = isAtRule(node) ? atRuleParamIndex(node) : declarationValueIndex(node);
|
|
|
|
report({
|
|
message: messages.rejected,
|
|
node,
|
|
// this is the index of the _first_ trailing zero
|
|
index: baseIndex + index,
|
|
result,
|
|
ruleName,
|
|
});
|
|
});
|
|
|
|
if (fixPositions.length) {
|
|
for (const fixPosition of fixPositions) {
|
|
const startIndex = fixPosition.startIndex;
|
|
const endIndex = fixPosition.endIndex;
|
|
|
|
if (isAtRule(node)) {
|
|
node.params = removeTrailingZeros(node.params, startIndex, endIndex);
|
|
} else {
|
|
node.value = removeTrailingZeros(node.value, startIndex, endIndex);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
};
|
|
|
|
/**
|
|
* @param {string} input
|
|
* @param {number} startIndex
|
|
* @param {number} endIndex
|
|
* @returns {string}
|
|
*/
|
|
function removeTrailingZeros(input, startIndex, endIndex) {
|
|
return input.slice(0, startIndex) + input.slice(endIndex);
|
|
}
|
|
|
|
rule.ruleName = ruleName;
|
|
rule.messages = messages;
|
|
rule.meta = meta;
|
|
module.exports = rule;
|