+++ /dev/null
-"use strict";
-
-const atRuleParamIndex = require("../../utils/atRuleParamIndex");
-const declarationValueIndex = require("../../utils/declarationValueIndex");
-const report = require("../../utils/report");
-const ruleMessages = require("../../utils/ruleMessages");
-const validateOptions = require("../../utils/validateOptions");
-const valueParser = require("postcss-value-parser");
-
-const ruleName = "number-no-trailing-zeros";
-
-const messages = ruleMessages(ruleName, {
- rejected: "Unexpected trailing zero(s)"
-});
-
-const rule = function(actual, secondary, context) {
- return (root, result) => {
- const validOptions = validateOptions(result, ruleName, { actual });
- if (!validOptions) {
- return;
- }
-
- root.walkAtRules(atRule => {
- if (atRule.name.toLowerCase() === "import") {
- return;
- }
-
- check(atRule, atRule.params, atRuleParamIndex);
- });
-
- root.walkDecls(decl => check(decl, decl.value, declarationValueIndex));
-
- function check(node, value, getIndex) {
- const fixPositions = [];
-
- // Get out quickly if there are no periods
- if (value.indexOf(".") === -1) {
- 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+)(?:\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) {
- 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;
- } else {
- report({
- message: messages.rejected,
- node,
- // this is the index of the _first_ trailing zero
- index: getIndex(node) + index,
- result,
- ruleName
- });
- }
- });
-
- if (fixPositions.length) {
- fixPositions.forEach(function(fixPosition) {
- const startIndex = fixPosition.startIndex;
- const endIndex = fixPosition.endIndex;
- if (node.type === "atrule") {
- node.params = removeTrailingZeros(
- node.params,
- startIndex,
- endIndex
- );
- } else {
- node.value = removeTrailingZeros(node.value, startIndex, endIndex);
- }
- });
- }
- }
- };
-};
-
-function removeTrailingZeros(input, startIndex, endIndex) {
- return input.slice(0, startIndex) + input.slice(endIndex);
-}
-
-rule.ruleName = ruleName;
-rule.messages = messages;
-module.exports = rule;