1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
/**
* @fileoverview Rule to check for tabs inside a file
* @author Gyandeep Singh
*/
"use strict";
//------------------------------------------------------------------------------
// Helpers
//------------------------------------------------------------------------------
const tabRegex = /\t+/gu;
const anyNonWhitespaceRegex = /\S/u;
//------------------------------------------------------------------------------
// Public Interface
//------------------------------------------------------------------------------
module.exports = {
meta: {
type: "layout",
docs: {
description: "disallow all tabs",
category: "Stylistic Issues",
recommended: false,
url: "https://eslint.org/docs/rules/no-tabs"
},
schema: [{
type: "object",
properties: {
allowIndentationTabs: {
type: "boolean",
default: false
}
},
additionalProperties: false
}]
},
create(context) {
const sourceCode = context.getSourceCode();
const allowIndentationTabs = context.options && context.options[0] && context.options[0].allowIndentationTabs;
return {
Program(node) {
sourceCode.getLines().forEach((line, index) => {
let match;
while ((match = tabRegex.exec(line)) !== null) {
if (allowIndentationTabs && !anyNonWhitespaceRegex.test(line.slice(0, match.index))) {
continue;
}
context.report({
node,
loc: {
line: index + 1,
column: match.index
},
message: "Unexpected tab character."
});
}
});
}
};
}
};
|
