1 | 'use strict';
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2 |
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3 | const atRuleParamIndex = require('../../utils/atRuleParamIndex');
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4 | const functionArgumentsSearch = require('../../utils/functionArgumentsSearch');
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5 | const isStandardSyntaxUrl = require('../../utils/isStandardSyntaxUrl');
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6 | const optionsMatches = require('../../utils/optionsMatches');
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7 | const report = require('../../utils/report');
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8 | const ruleMessages = require('../../utils/ruleMessages');
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9 | const validateOptions = require('../../utils/validateOptions');
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10 |
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11 | const ruleName = 'function-url-quotes';
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12 |
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13 | const messages = ruleMessages(ruleName, {
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14 | expected: () => 'Expected quotes',
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15 | rejected: () => 'Unexpected quotes',
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16 | });
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17 |
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18 | function rule(expectation, options) {
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19 | return (root, result) => {
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20 | const validOptions = validateOptions(
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21 | result,
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22 | ruleName,
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23 | {
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24 | actual: expectation,
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25 | possible: ['always', 'never'],
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26 | },
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27 | {
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28 | actual: options,
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29 | possible: {
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30 | except: ['empty'],
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31 | },
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32 | optional: true,
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33 | },
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34 | );
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35 |
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36 | if (!validOptions) {
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37 | return;
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38 | }
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39 |
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40 | root.walkAtRules(checkAtRuleParams);
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41 | root.walkDecls(checkDeclParams);
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42 |
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43 | function checkDeclParams(decl) {
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44 | functionArgumentsSearch(decl.toString().toLowerCase(), 'url', (args, index) => {
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45 | checkArgs(args, decl, index, 'url');
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46 | });
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47 | }
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48 |
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49 | function checkAtRuleParams(atRule) {
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50 | const atRuleParamsLowerCase = atRule.params.toLowerCase();
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51 |
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52 | functionArgumentsSearch(atRuleParamsLowerCase, 'url', (args, index) => {
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53 | checkArgs(args, atRule, index + atRuleParamIndex(atRule), 'url');
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54 | });
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55 | functionArgumentsSearch(atRuleParamsLowerCase, 'url-prefix', (args, index) => {
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56 | checkArgs(args, atRule, index + atRuleParamIndex(atRule), 'url-prefix');
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57 | });
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58 | functionArgumentsSearch(atRuleParamsLowerCase, 'domain', (args, index) => {
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59 | checkArgs(args, atRule, index + atRuleParamIndex(atRule), 'domain');
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60 | });
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61 | }
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62 |
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63 | function checkArgs(args, node, index, functionName) {
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64 | let shouldHasQuotes = expectation === 'always';
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65 |
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66 | const leftTrimmedArgs = args.trimLeft();
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67 |
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68 | if (!isStandardSyntaxUrl(leftTrimmedArgs)) {
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69 | return;
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70 | }
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71 |
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72 | const complaintIndex = index + args.length - leftTrimmedArgs.length;
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73 | const hasQuotes = leftTrimmedArgs.startsWith("'") || leftTrimmedArgs.startsWith('"');
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74 |
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75 | const trimmedArg = args.trim();
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76 | const isEmptyArgument = ['', "''", '""'].includes(trimmedArg);
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77 |
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78 | if (optionsMatches(options, 'except', 'empty') && isEmptyArgument) {
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79 | shouldHasQuotes = !shouldHasQuotes;
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80 | }
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81 |
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82 | if (shouldHasQuotes) {
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83 | if (hasQuotes) {
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84 | return;
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85 | }
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86 |
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87 | complain(messages.expected(functionName), node, complaintIndex);
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88 | } else {
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89 | if (!hasQuotes) {
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90 | return;
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91 | }
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92 |
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93 | complain(messages.rejected(functionName), node, complaintIndex);
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94 | }
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95 | }
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96 |
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97 | function complain(message, node, index) {
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98 | report({
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99 | message,
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100 | node,
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101 | index,
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102 | result,
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103 | ruleName,
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104 | });
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105 | }
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106 | };
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107 | }
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108 |
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109 | rule.ruleName = ruleName;
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110 | rule.messages = messages;
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111 | module.exports = rule;
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