Regex Examples

	What Did	Find	Replace
-4	replace [md] links with <abbr>	\[([^+\]]+)\](\([^"]+")([^"]+)"\)	<abbr title="$3">$1</abbr>
-3	find and fix img tags without />	(<input[^>]+)>	$1 />
-2	markdown links -> text	\[([^\]]+)\]\([^\)]+\)	$1
-1	Nested tags	<div class="history">(?:[^<\r]*(?:<(?!/div>)[^<]*)*</div>){15}
0	Wrap between ""	"([^"]+)"	$1
1	Wraps with Italic/Bold	- ([^\\:]+)	- ***$1***
2	From Italic/Bold to Bold	\*{3}(.*)\*{3}	**$1**
3	Adds to ``` jsx	(```)(\n.)	$1jsx$2
4	Removes double spaces	`\s(\s.)	`$1
5	Deletes unnessesary \n	\n(\n```\n\n)	$1
6	Replaces two empty links with one non-empty one	\[\]\(.*\n.*[^\(]+.(.*[^\)])\)(.*)	$2\n\n[$2]($1
7	See above, but replace with <a>	\[\]\(.*\n.*[^\(]+.(.*[^\)])\)(.*)	$2\n\n$2 <a href='$2' class='external'>$1</a>
8	Replaces markdown link with html link	\[.*\/\/([^\/]+)\/.*\]\((.*)\)	<a href='$2' class='external'>$1</a>

9 Removes numbers at start of the lines

and removes commented lines; removes empty lines

I did this for the poorly formatted code blocks in this tutorial docs.microsoft.com: Using React and building a web site on Azure.

<!-.*\n|^ *\d[:\.] *\n|^.*\d[:\.] *|//.*//.*\n

was

1: // index.js //
    2:
    3: var React = require('react');
    4: var ReactDOM = require('react-dom');
    5: require('./index.css');

became

var React = require('react');
var ReactDOM = require('react-dom');
require('./index.css');