lihai 8d6c751f49 feat: push | 2 anni fa | |
---|---|---|
.. | ||
index.js | 2 anni fa | |
license | 2 anni fa | |
package.json | 2 anni fa | |
readme.md | 2 anni fa |
Detect the indentation of code
Pass in a string of any kind of text and get the indentation.
$ npm install --save detect-indent
Here we modify a JSON file while persisting the indentation:
var fs = require('fs');
var detectIndent = require('detect-indent');
/*
{
"ilove": "pizza"
}
*/
var file = fs.readFileSync('foo.json', 'utf8');
// tries to detect the indentation and falls back to a default if it can't
var indent = detectIndent(file).indent || ' ';
var json = JSON.parse(file);
json.ilove = 'unicorns';
fs.writeFileSync('foo.json', JSON.stringify(json, null, indent));
/*
{
"ilove": "unicorns"
}
*/
Accepts a string and returns an object with stats about the indentation:
amount
{number} - Amount of indentation, e.g. 2
type
{string|null} - Type of indentation. Possible values are tab
, space
or null
if no indentation is detectedindent
{string} - Actual indentationThe current algorithm looks for the most common difference between two consecutive non-empty lines.
In the following example, even if the 4-space indentation is used 3 times whereas the 2-space one is used 2 times, it is detected as less used because there were only 2 differences with this value instead of 4 for the 2-space indentation:
html {
box-sizing: border-box;
}
body {
background: gray;
}
p {
line-height: 1.3em;
margin-top: 1em;
text-indent: 2em;
}
Furthermore, if there are more than one most used difference, the indentation with the most lines is selected.
In the following example, the indentation is detected as 4-spaces:
body {
background: gray;
}
p {
line-height: 1.3em;
margin-top: 1em;
text-indent: 2em;
}
MIT © Sindre Sorhus