138 lines
5.8 KiB
JavaScript
138 lines
5.8 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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const regexp_ast_analysis_1 = require("regexp-ast-analysis");
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const utils_1 = require("../utils");
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const mention_1 = require("../utils/mention");
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function isSmallLetterRange(node) {
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return (node.type === "CharacterClassRange" &&
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node.min.value === utils_1.CP_SMALL_A &&
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node.max.value === utils_1.CP_SMALL_Z);
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}
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function isCapitalLetterRange(node) {
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return (node.type === "CharacterClassRange" &&
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node.min.value === utils_1.CP_CAPITAL_A &&
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node.max.value === utils_1.CP_CAPITAL_Z);
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}
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function isDigitRangeOrSet(node) {
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return ((node.type === "CharacterClassRange" &&
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node.min.value === utils_1.CP_DIGIT_ZERO &&
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node.max.value === utils_1.CP_DIGIT_NINE) ||
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(node.type === "CharacterSet" && node.kind === "digit" && !node.negate));
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}
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function isUnderscoreCharacter(node) {
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return node.type === "Character" && node.value === utils_1.CP_LOW_LINE;
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}
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exports.default = (0, utils_1.createRule)("prefer-w", {
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meta: {
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docs: {
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description: "enforce using `\\w`",
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category: "Stylistic Issues",
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recommended: true,
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},
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fixable: "code",
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schema: [],
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messages: {
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unexpected: "Unexpected {{type}} {{expr}}. Use '{{instead}}' instead.",
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},
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type: "suggestion",
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},
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create(context) {
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function createVisitor({ node, flags, getRegexpLocation, fixReplaceNode, patternSource, }) {
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return {
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onCharacterClassEnter(ccNode) {
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const charSet = (0, regexp_ast_analysis_1.toUnicodeSet)(ccNode, flags);
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let predefined = undefined;
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const word = regexp_ast_analysis_1.Chars.word(flags);
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if (charSet.equals(word)) {
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predefined = "\\w";
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}
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else if (charSet.equals(word.negate())) {
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predefined = "\\W";
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}
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if (predefined) {
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context.report({
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node,
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loc: getRegexpLocation(ccNode),
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messageId: "unexpected",
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data: {
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type: "character class",
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expr: (0, mention_1.mention)(ccNode),
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instead: predefined,
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},
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fix: fixReplaceNode(ccNode, predefined),
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});
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return;
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}
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const lowerAToZ = [];
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const capitalAToZ = [];
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const digit = [];
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const underscore = [];
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for (const element of ccNode.elements) {
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if (isSmallLetterRange(element)) {
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lowerAToZ.push(element);
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if (flags.ignoreCase) {
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capitalAToZ.push(element);
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}
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}
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else if (isCapitalLetterRange(element)) {
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capitalAToZ.push(element);
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if (flags.ignoreCase) {
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lowerAToZ.push(element);
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}
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}
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else if (isDigitRangeOrSet(element)) {
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digit.push(element);
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}
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else if (isUnderscoreCharacter(element)) {
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underscore.push(element);
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}
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}
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if (lowerAToZ.length &&
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capitalAToZ.length &&
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digit.length &&
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underscore.length) {
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const unexpectedElements = [
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...new Set([
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...lowerAToZ,
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...capitalAToZ,
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...digit,
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...underscore,
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]),
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].sort((a, b) => a.start - b.start);
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context.report({
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node,
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loc: getRegexpLocation(ccNode),
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messageId: "unexpected",
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data: {
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type: "character class ranges",
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expr: `'[${unexpectedElements
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.map((e) => e.raw)
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.join("")}]'`,
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instead: "\\w",
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},
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fix(fixer) {
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const fixes = [];
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for (const element of unexpectedElements) {
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const range = patternSource.getReplaceRange(element);
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if (!range) {
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return null;
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}
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if (fixes.length === 0) {
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fixes.push(range.replace(fixer, "\\w"));
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}
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else {
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fixes.push(range.remove(fixer));
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}
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}
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return fixes;
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},
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});
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}
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},
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};
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}
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return (0, utils_1.defineRegexpVisitor)(context, {
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createVisitor,
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});
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},
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});
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