# REPLACE values after utmost left character
**URL:** https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090
**Category:** General Discussion
**Created:** [October 10, 2013, 12:26am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090 "2013-10-10T00:26:35Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@fohrums](https://community.mp3tag.de/u/fohrums)
#### Post date: [October 10, 2013, 12:26am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/1 "2013-10-10T00:26:35Z")
I have a custom action list that replace various stuff such as:
FIELD: \_ALL
On \> on
Is \> is
etc ....
my problem is some song titles have these words in the beginning of them so how can I use scripting functions to not have the the utmost left character be changed 
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [October 10, 2013, 7:16am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/2 "2013-10-10T07:16:41Z")
If the replace is targeted at single words within a string, you can simply add a leading blank to the words - at the beginning of a field there should not be a blank.
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### Author:  [@fohrums](https://community.mp3tag.de/u/fohrums)
#### Post date: [October 10, 2013, 7:38am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/3 "2013-10-10T07:38:56Z")
> [@ohrenkino](#):
>
> If the replace is targeted at single words within a string, you can simply add a leading blank to the words - at the beginning of a field there should not be a blank.
Give me an example?
one of my replace action rule is as follows:
[http://i.imgur.com/5QM4jxb.jpg](http://i.imgur.com/5QM4jxb.jpg)
what do I do?
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [October 10, 2013, 10:22am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/4 "2013-10-10T10:22:21Z")
> [@fohrums](#):
>
> Give me an example?
>
> one of my replace action rule is as follows:
>
> [http://i.imgur.com/5QM4jxb.jpg](http://i.imgur.com/5QM4jxb.jpg)
>
> what do I do?
You have to judge if the replacements are a word of their own or part of a word.
So, to replace the single "A" to "a" would mean that you look for " A " and replace it with " a ".
If the "a" is the start of a word (like "and") then you would search for " A" and replace it with " a".
Common to these examples is that the sought-after letter combination has a " " (=blank) in front - if the letter combination is found at the beginning of a field then there is no blank in front.
Clear enough?
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### Author:  [@fohrums](https://community.mp3tag.de/u/fohrums)
#### Post date: [October 11, 2013, 4:51am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/5 "2013-10-11T04:51:15Z")
> [@ohrenkino](#):
>
> letter combination has a " " (=blank) in front
I understand. The problem with MP3Tag "Replace" function is it doesn't recognize the space (character) 
This doesn't work:
[http://i.imgur.com/S0w1qQo.jpg](http://i.imgur.com/S0w1qQo.jpg)
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [October 11, 2013, 6:12am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/6 "2013-10-11T06:12:27Z")
You have to uncheck [] only as whole word
Or instead of changing all your actions you could add one action that makes the first character upper case again.
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### Author:  [@fohrums](https://community.mp3tag.de/u/fohrums)
#### Post date: [October 11, 2013, 8:07am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/7 "2013-10-11T08:07:13Z")
INTERESTING! I can't come up with a code that will identify that though? here's what I have so far (which I believe is the most appropriate method):
[http://i.imgur.com/z5j9qRg.jpg](http://i.imgur.com/z5j9qRg.jpg)
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [October 11, 2013, 8:15am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/8 "2013-10-11T08:15:44Z")
> [@fohrums](#):
>
> INTERESTING! I can't come up with a code that will identify that though? here's what I have so far (which I believe is the most appropriate method):
>
> [http://i.imgur.com/z5j9qRg.jpg](http://i.imgur.com/z5j9qRg.jpg)
So you problem is not to have some words in lower case but to have the first letter of a field in upper case?
For this see
[/t/967/1](https://community.mp3tag.de/t/967/1)
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### Author:  [@fohrums](https://community.mp3tag.de/u/fohrums)
#### Post date: [October 11, 2013, 8:47am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/9 "2013-10-11T08:47:00Z")
~Persay 
It's just I want to have only these following words lowercase unless it's not in the beginning of the field (most specifically %title%).
a|am|an|and|are|as|at|but|by|dj|mc|for|from|if|in|is|it|my|nor|of|or|on|the|to|s
o|yet|your
so i'm still in a slump about this. What you mentioned earlier is perhaps the best fit for me, it's just I don't think there is a case conversion specific code for only specific character modification.
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [October 11, 2013, 9:27am UTC](https://community.mp3tag.de/t/replace-values-after-utmost-left-character/15090/10 "2013-10-11T09:27:17Z")
To make the first letter upper case use
_Action type:_ **Replace with regular expression**
_Field:_ **\_ALL**
_Regular expression:_ **^(\l)**
_Replace matches with:_ **$upper($1)**
[x] case-sensitive comparison