Regex -> Replace up to but not including

Question

Im trying to replace this @Model.<A Word> to $Model.<A Word>$

so, @Model.Test would become $Model.Test$

While searching SO, i found this thread

Which the answer worked.. until I had to replace one in this sentence

Élément @Model.Title a besoin d'être\napprouvé

Modifying the answer slightly to : @Model\.((?:(?![ ]).)*)

Results with

Élément $Model.Title a$ besoin d'être\napprouvé

I want the $ to be just after Title -> $Model.Title$

Any help would be appreciated - I'm quite new to regex.

http://tinyurl.com/o4bb9rz – Dave Bish Aug 14 '13 at 13:55 — Dave Bish, Aug 14 '13 at 13:55

Rohit Jain · Answer 1 · 2013-08-14T14:04:46.750

1

In this case, you definitely don't need look-arounds. Since you are just going to match words after @Model., you can just replace the following regex:

"@(Model[.]\w+)"

with:

"$$$1$$"

edited Aug 14 '13 at 14:04

answered Aug 14 '13 at 13:57

Rohit Jain

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score 1 · Accepted Answer · answered Aug 14 '13 at 13:58

You can use this pattern:

@Model\.(\w+)

This will match @Model. followed by one or more 'word characters'. For example:

var output = Regex.Replace(
    "Élément @Model.Title a besoin d'être\napprouvé", 
    @"@Model\.(\w+)", 
    "$$Model.$1$$"); // Élément $Model.Title$ a besoin d'être\napprouvé

Ibrahim Najjar · Answer 3 · 2013-08-14T14:07:26.167

1

Why not just use @Model\.(\S+) with a replacement string $Model.$1$

edited Aug 14 '13 at 14:07

answered Aug 14 '13 at 13:59

Ibrahim Najjar

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I ended up with p.s.w.g's answer but i tried this anyway (just for reference). Élément @Model.Title a besoin d'être\napprouvé still -> still ends up with $Model.Title a$ – Alan Ciantar Aug 14 '13 at 14:11
1

@AlanCiantar Are you sure, i just have re-tested that and it was correct. – Ibrahim Najjar Aug 14 '13 at 14:14
http://i.imgur.com/swMjwN3.png -- I'm using this site (http://myregexp.com/signedJar.html) -> maybe its old? – Alan Ciantar Aug 14 '13 at 14:17
@AlanCiantar Perhaps it is old, nevertheless your problem is solved so it is OK. – Ibrahim Najjar Aug 14 '13 at 14:19
@AlanCiantar The difference between this answer and mine (and Rohit's) is that this will match any non-whitespace characters while mine (and Rohit's) will match any word characters. E.g. this will replace `@Model.Title-Text` with `$Model.Title-Text$` while mine will replace `@Model.Title-Text` with `$Model.Title$-Text`. Both are good approaches, depending on exactly what you need. – p.s.w.g Aug 14 '13 at 14:21
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@p.s.w.g + Rohit Thank you both :) Apparently Rohit's answer works on other online regex testers O.o - again, ty. – Alan Ciantar Aug 14 '13 at 14:24

Craig · Answer 4 · 2013-08-14T14:18:26.140

0

Try this (Perl/JavaScript regex format):

s/@(Model\.[^ ]+)/\$$1\$/g

Update:

And of course our friend sed:

sed 's/@\(Model\.[^ ]\+\)/$\1$/g'

Update 2:

Removed spaces.

edited Aug 14 '13 at 14:18

answered Aug 14 '13 at 13:59

Craig

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The question is tagged C#. Why would you post Perl? Also, this won't work if the word being matched is not immediately followed by a space. e.g. `This is my @Model.Title!`. – p.s.w.g Aug 14 '13 at 14:08
Fair comment. But the question seems to be more related to RegExes than it does C# specifics, so I felt providing something to an unanswered (at the time) question, is better than leaving it unanswered. – Craig Aug 14 '13 at 14:19

Regex -> Replace up to but not including

4 Answers4