# Case Conversion Help (Building an action script)
**URL:** https://community.mp3tag.de/t/case-conversion-help-building-an-action-script/45322
**Category:** Support
**Created:** [May 2, 2019, 8:18pm UTC](https://community.mp3tag.de/t/case-conversion-help-building-an-action-script/45322 "2019-05-02T20:18:33Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Samael](https://community.mp3tag.de/u/Samael)
#### Post date: [May 2, 2019, 8:18pm UTC](https://community.mp3tag.de/t/case-conversion-help-building-an-action-script/45322/1 "2019-05-02T20:18:33Z")
I'm working on a case conversion action script. So that case is more accurately reflected and spacing more consistent. For example:
**The Road To The Isles/Glendaruel Highlanders/The Old Rusitc Bridge By The Mill**
would be converted to:
**The Road to the Isles / Glendaruel Highlanders / The Old Rusitc Bridge by the Mill**
and
**Chapter V - (Part I)Prophecy Fullfilled,(Part Ii)And The Dark Night Entered**
would be converted to:
**Chapter V - (Part I) Prophecy Fullfilled, (Part II) and the Dark Night Entered**
There are a couple outlying scenarios that have been eluding me an my regex is not all that great..
Acronyms...
Any thought on how do this? As an example...
I'd like to be able to convert things like
**W.y.s.i.w.y.g. (Lp Version)** to **W.Y.S.I.W.Y.G. (Lp Version)**
and
**4A.m.** to **4A.M.**
and
**T.s.o.l. / Nothing for You** to **T.S.O.L. / Nothing for You**
There are little things like LP, EP, CD, DJ that can be done easily, unless they're in brackets (As shown above), and they're not really worth the effort for how few they are. i.e. CD) or (CD. Don't necessarily want to do a global replace on two letter.
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [May 2, 2019, 8:24pm UTC](https://community.mp3tag.de/t/case-conversion-help-building-an-action-script/45322/2 "2019-05-02T20:24:59Z")
Here is an action set that considers the English way of capitalization:
> [@Case conversion...](https://community.mp3tag.de/t/case-conversion/11684):
>
> Howdy. I've stumbled across [this Action script](http://liquidparallax.com/2007/10/19/mp3tag-actions-empower-your-digital-collection/#titl) that formats all fields to title case. It works very well, except that I would like it to ignore words that are upper-case. For instance, words (or acronyms without periods) like UFO are converted to Ufo. I've left a message for the script's author but have not yet had a reply, so I thought I'd ask the geniuses over here. wink So, any ideas? Also, I'm wondering what similar scripts others here are using, so alternative suggestions are welcome. T…
All special words like DJ and LP would have to be treated with an action of the type "Replace" and not "Case conversion".
Abbreviations with special characters as separators can easily be converted with an action of the type Case Conversion, type word-wise where you specify only the . as word separator.
You can assemble all the various way to convert in one action group.
---
### Author:  [@Samael](https://community.mp3tag.de/u/Samael)
#### Post date: [May 2, 2019, 9:29pm UTC](https://community.mp3tag.de/t/case-conversion-help-building-an-action-script/45322/3 "2019-05-02T21:29:20Z")
Thanks, but not quite as feature rich as I'm after, though I might be able to use the Regex to simplify mine, and it's missing a bunch of words that should be lower case (Not that mine isn't missing words as well). To make it consistent across the library, I do a bunch of data cleansing along with the case conversion.
- Convert \_ (Underscore) and %20 to space
- Convert ~ and : to -
- Convert ` to '
- Convert [ and { to (
- Convert ] and } to )
- Set the spacing around "-" and "/" so there is a single space on either side. It messes with dates and hyphenated words, but those are pretty few and far between.
- Set the spacing around bracket pairs () so there is a single space on either side
- Remove double spaces
- Ensure the first letter is a capitol (Unless it is non-alphabetic)
- Ensure the first letter in the last word is capitol (Unless it is non-alphabetic)
- I try to identify and fix the case of Roman numerals as well (For numbers I to XV)
I'm not following what you mean for the abbreviations. Case Conversion only gives you the options to choose type of conversion and "Words that begin from/after", which won't necessarily work. I mean it will work, but it will catch other stuff too, like **...and Justice for All** , **Since the Creation...** and **Bring Your Daughter... to the Slaughter**.
To do the actual conversions, I do some of the initial formatting fixes listed above, then I do a Case Conversion at the start to put the titles in a "predictable" starting state (The Case Conversion delivered with the software), then I use a combination of Format Value and Replace to get it in the form I want.
My action group is large, 117 actions at the moment, mostly because I suck at RegEx, so every word is a single action. 30 actions alone, just for the Roman numerals.
---
### Author:  [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [May 3, 2019, 7:11am UTC](https://community.mp3tag.de/t/case-conversion-help-building-an-action-script/45322/4 "2019-05-03T07:11:43Z")
> [@Samael](#):
>
> 30 actions alone, just for the Roman numerals.
A quick search in this forum and you get:
> [@Roman numbers in one single regular expression (regexp)](https://community.mp3tag.de/t/roman-numbers-in-one-single-regular-expression-regexp/16343):
>
> Roman numbers from 1 to 3999. Understanding roman numbers. They are split in 4 optional sections in following high-low priority. The higher the priority, the more left a section is placed. Sections priority is always respected. Sections 2-4 have identical logic (only they letters change). 1000-3000: M|MM|MMM 100-900: C|CC|CCC|CD|D|DC|DCC|DCCC|CM 10-90: X|XX|XXX|XL|L|LX|LXX|LXXX|XC 1-9: I|II|III|IV|V|VI|VII|VIII|IX e.g. 3746 = 3000 + 700 + 40 + 6 = MMM DCC XL VI = MMMDCCXLVI Normalize regexp …
1 x Action "Replace with regular expression" replaces your other 29 actions of this type. 😉
---
### Author:  [@Samael](https://community.mp3tag.de/u/Samael)
#### Post date: [May 3, 2019, 3:28pm UTC](https://community.mp3tag.de/t/case-conversion-help-building-an-action-script/45322/5 "2019-05-03T15:28:38Z")
Thanks for the link. Like I said, RegEx isn't my forte, beyond the very simple. I'll have to test it to make sure it doesn't do things like convert the word **Six** to **SIX** , which I assume it does not, but will convert something like **Vii)** to **VII)**...a fairly easy fix if it doesn't. If I could use SQL or PL/SQL, I'd be golden. 😛 Thinking about it now, there is something I could have done to reduce my 30 actions to 15 for the Roman numerals +4 for formatting manipulations to make the Roman numerals work properly. I'm not even really using the built in $regexp properly, for the most part, but now that I see how this Roman numeral one is built, I think I can also figure out my acronym issue.
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [May 3, 2019, 3:49pm UTC](https://community.mp3tag.de/t/case-conversion-help-building-an-action-script/45322/6 "2019-05-03T15:49:20Z")
> [@Samael](#):
>
> but it will catch other stuff too, like **...and Justice for All** , **Since the Creation...** and **Bring Your Daughter... to the Slaughter**
It should be possible to replace two consecutive full stops plus an upper case letter with 2 consecutive full stops plus a lower case letter.
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:28pm UTC](https://community.mp3tag.de/t/case-conversion-help-building-an-action-script/45322/7 "2026-02-09T12:28:04Z")