82 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/**
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 * @fileoverview Rule to check for tabs inside a file
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 * @author Gyandeep Singh
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 * @deprecated in ESLint v8.53.0
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 */
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"use strict";
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//------------------------------------------------------------------------------
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// Helpers
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//------------------------------------------------------------------------------
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const tabRegex = /\t+/gu;
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const anyNonWhitespaceRegex = /\S/u;
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//------------------------------------------------------------------------------
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// Public Interface
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//------------------------------------------------------------------------------
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/** @type {import('../shared/types').Rule} */
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module.exports = {
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    meta: {
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        deprecated: true,
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        replacedBy: [],
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        type: "layout",
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        docs: {
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            description: "Disallow all tabs",
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            recommended: false,
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            url: "https://eslint.org/docs/latest/rules/no-tabs"
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        },
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        schema: [{
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            type: "object",
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            properties: {
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                allowIndentationTabs: {
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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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        messages: {
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            unexpectedTab: "Unexpected tab character."
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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 allowIndentationTabs = context.options && context.options[0] && context.options[0].allowIndentationTabs;
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        return {
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            Program(node) {
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                sourceCode.getLines().forEach((line, index) => {
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                    let match;
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                    while ((match = tabRegex.exec(line)) !== null) {
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                        if (allowIndentationTabs && !anyNonWhitespaceRegex.test(line.slice(0, match.index))) {
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                            continue;
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                        }
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                        context.report({
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                            node,
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                            loc: {
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                                start: {
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                                    line: index + 1,
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                                    column: match.index
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                                },
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                                end: {
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                                    line: index + 1,
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                                    column: match.index + match[0].length
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                                }
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                            },
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                            messageId: "unexpectedTab"
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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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};
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