112 lines
3.6 KiB
Plaintext
112 lines
3.6 KiB
Plaintext
'use strict';
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var utils = require('../utils.js');
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require('eslint-visitor-keys');
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require('espree');
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require('estraverse');
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var noTrailingSpaces = utils.createRule({
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name: "no-trailing-spaces",
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package: "js",
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meta: {
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type: "layout",
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docs: {
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description: "Disallow trailing whitespace at the end of lines"
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},
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fixable: "whitespace",
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schema: [
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{
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type: "object",
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properties: {
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skipBlankLines: {
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type: "boolean",
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default: false
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},
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ignoreComments: {
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type: "boolean",
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default: false
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}
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},
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additionalProperties: false
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}
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],
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messages: {
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trailingSpace: "Trailing spaces not allowed."
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}
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},
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create(context) {
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const sourceCode = context.sourceCode;
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const BLANK_CLASS = "[ \xA0\u2000-\u200B\u3000]";
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const SKIP_BLANK = `^${BLANK_CLASS}*$`;
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const NONBLANK = `${BLANK_CLASS}+$`;
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const options = context.options[0] || {};
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const skipBlankLines = options.skipBlankLines || false;
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const ignoreComments = options.ignoreComments || false;
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function report(node, location, fixRange) {
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context.report({
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node,
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loc: location,
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messageId: "trailingSpace",
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fix(fixer) {
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return fixer.removeRange(fixRange);
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}
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});
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}
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function getCommentLineNumbers(comments) {
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const lines = /* @__PURE__ */ new Set();
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comments.forEach((comment) => {
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const endLine = comment.type === "Block" ? comment.loc.end.line - 1 : comment.loc.end.line;
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for (let i = comment.loc.start.line; i <= endLine; i++)
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lines.add(i);
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});
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return lines;
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}
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return {
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Program: function checkTrailingSpaces(node) {
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const re = new RegExp(NONBLANK, "u");
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const skipMatch = new RegExp(SKIP_BLANK, "u");
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const lines = sourceCode.lines;
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const linebreaks = sourceCode.getText().match(utils.createGlobalLinebreakMatcher());
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const comments = sourceCode.getAllComments();
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const commentLineNumbers = getCommentLineNumbers(comments);
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let totalLength = 0;
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for (let i = 0, ii = lines.length; i < ii; i++) {
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const lineNumber = i + 1;
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const linebreakLength = linebreaks && linebreaks[i] ? linebreaks[i].length : 1;
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const lineLength = lines[i].length + linebreakLength;
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const matches = re.exec(lines[i]);
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if (matches) {
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const location = {
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start: {
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line: lineNumber,
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column: matches.index
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},
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end: {
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line: lineNumber,
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column: lineLength - linebreakLength
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}
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};
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const rangeStart = totalLength + location.start.column;
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const rangeEnd = totalLength + location.end.column;
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const containingNode = sourceCode.getNodeByRangeIndex(rangeStart);
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if (containingNode && containingNode.type === "TemplateElement" && rangeStart > containingNode.parent.range[0] && rangeEnd < containingNode.parent.range[1]) {
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totalLength += lineLength;
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continue;
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}
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if (skipBlankLines && skipMatch.test(lines[i])) {
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totalLength += lineLength;
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continue;
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}
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const fixRange = [rangeStart, rangeEnd];
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if (!ignoreComments || !commentLineNumbers.has(lineNumber))
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report(node, location, fixRange);
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}
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totalLength += lineLength;
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}
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}
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};
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}
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});
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module.exports = noTrailingSpaces;
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