Regular Expression Repository

[Stefan]

Delete all (i.e. one or more) leading space and tabs:

Find
^(\s|\t)+(.+)$

Replace
$2

[Stefan]

Replace two or more blanks (every where in the line) to one single blank

Find
\s\s+

Replace
#

(Note: instead of # insert an blank by pressing the space-bar into the Replace field)

[Stefan]

Remove all email quoting prefixes

Find
[>\s]+

Replace


(Note: this means: Replace with nothing)

------------------------------

Reduce two or more email quoting prefixes to one single >

Find
[>\s]+

Replace
>

or Replace
>#


(Note: instead of # insert an blank after the '>'  by pressing the space-bar into the Replace field)

[JJK]

Very nice post. I encourage you to give us your other tricks.

[alex]

Hello Stefan,

Thanks for your help

I have open for editing FAQ section, maybe you would move your topic there, I think it matches better for such advises as general section. What do you think?

Best regards,
Alex.

P.S: I have moved it

[Stefan]

This needs beta from 08.12.2008 (b550) or above
(Note: may need several runs with current beta, because RegEx match currently non-greedy)


Remove all empty lines:

Find:
(^$\r\n)+

Replace:


(Note: this means: Replace with nothing)

--------------------------------------------------------

Remove all empty lines, even if they contain space or tabs:

Find:
^\s*$\r\n

Replace:


(Note: this means: Replace with nothing)

--------------------------------------------------------

Reduce many empty lines to one single empty line:

Find:
^$\r\n(\r\n)+

Replace:
\r\n


--------------------------------------------------------

Remove lines containing "String" and don't leave empty lines back:

Find: ".+String.+\r\n"

Replace: ""


he trick here is to include the line end symbols \r\n into the search pattern.


-

This RegEx currently may need some tweaks before they works satisfied.

[Stefan]

I am just remind myself on my older list.  Here is it.

I will test them with HippoEDIT and ask Alex to add them to Find&Replace Favorites as default with distribution?
Wait before use this regex till  i have removed this sentence.


find a e-mail address:       \w[-._\w]*\w.?@\w[-._\w]*\w\.\w{2,4}

find a URL:                      (mailto|news|http|ftp|https):\/\/[\w]+(\.[\w]+)+([\w\-\.,@?^=%&:/~\+#]*[\w\-\@?^=%&/~\+#])?

-

find hole TAGs:                <[^>]+>
find opening TAGs:           <[^/][^>]+>
find closing TAGs:            </[^>]+>
find TAGs containig XYZ:   <[^>]*\n?.*=("|')?(.*\.XYZ)("|')?.*\n?[^<]*>

-

find strings between " ":      "((\\")|[^"(\\")])+"
find strings between ( ):       \(((\\")|[^"(\\")])+\)
find strings between {}:      {((\\")|[^"(\\")])+}
find strings between [ ]:      \[((\\")|[^"(\\")])+\]

-

[Arthur]

How about adding a quick help card on RegExp to the HE itself which will be also insertable into the search field, similar to the functionality popping up Syntax Help or the shortcut hints?

[alex]

Do not know about some special popup window (I thought somewhen about some kind of intellisense foe search filed, but currently have requests with higher priority), but maybe most popular expressions, I can add into regexp menu right side of search field...

[Stefan]

Search for empty line and insert:

Find: \r\n^$
Replace: \r\nInsert this\r\n\r\nNext line

or more like a pro would do:
Find: (\r\n)^$
Replace: $1Insert this$1$1Next line


Explanation:
Find an 'empty line', \r\n
replace with 'empty line'  \r\n
AND add text "Insert text"
AND add another 'empty line'   \r\n
AND add another text "Next line"

Note:
the very last line break (not shown here but visible in HippoEDIT if View-WhiteSpace is enabled)
is inserted by HippoEDIT on its own.

[Stefan]

Search for an line which does NOT contain "string"

Find what: ^((?!string).)*$
[X] Regular Expression

Found by Alex here > http://forum.hippoedit.com/?/topic,94.msg3574.html#msg3574


Example:
^((?!Program Files\\Oracle\\Jinitiator).)*$
jumps to the first line NOT containing "Program Files\Oracle\Jinitiator" somewhere in that line,
while skipping all line containing this string.

Example 2:
For file "\HippoEDIT\data\syntax\java_spec.xml"
- open this file
- scroll down to "<Style name="Regular""
- you will see a long list of Keywords
- search for: ^((?!keyword).)*$
- you will jump over all "Keyword"-lines to "</Style>"
(Here you have could simple search for "</Style>" two,... but he, this is an example only