How to trim spaces in xml tags using regular expression in notepad++?

Question

I am trying to trim a space in an XML tag, this is an example of what I have:

<xmlT ag>
content between tag
</xmlTa g>

to:

<xmlTag>
content between tag
</xmlTag>

This is the expression that I wrote for that:

Find: [<](\w)* (\w)*[>]|[<][/](\w)* (\w)*[>]
Replace: \1\2

but is not working as expected.
Is there any other workaround for this?

Replace <xmlT ag> with <xmlTag>?

Aaron Blenkush
– Aaron Blenkush

2013-03-11 15:57:42 +00:00
Commented Mar 11, 2013 at 15:57 — Aaron Blenkush
– Aaron Blenkush, Commented Mar 11, 2013 at 15:57

Tom · Accepted Answer · 2013-03-11 15:57:39Z

2

If the tags only have one space in them and no attributes, this will work

find: <(/?)(\w*) (\w*)>

replace: <\1\2\3>

answered Mar 11, 2013 at 15:57

Tom

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CSᵠ · Accepted Answer · 2013-03-23 20:31:08Z

2

Using a LookAhead we can repair any number of spaces in a tag:

Search for: \s+(?=[\s\w]*>)
Replace with nothing

Explained demo here: http://www.regex101.com/r/dY6zC2

Note: LookAhead is available in NotePad++ since version 6.0

edited Mar 23, 2013 at 20:31

answered Mar 11, 2013 at 17:31

CSᵠ

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5 Comments

Benjamin Toueg Over a year ago

There is no lookahead in notepad++

MikeM Over a year ago

Notepad++ supports PCRE including look-aheads and look-behinds (since v6.0).

CSᵠ Over a year ago

@btoueg actually just tested on Notepad++ 6.3.1 and it supports LookAhead and works flawlessly.

CSᵠ Over a year ago

@MikeM thanks for clarifying, also Notepad++ 6.3 was available at the time the question was posted

Benjamin Toueg Over a year ago

Ok, sorry about that. It looks like I can't change my vote unless the answer is edited.

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