[Therion] Compiling error due to encoding

Fri May 29 09:03:56 CEST 2026

Hi Martin

As you can see on the screenshots the file format from Xtherion editor 
is the same as the first line of the file.
(but real file format seems to be UTF-8 as Visual Studio Code is saying)
When I change the file format with XTherion the first line (not shown in 
XTherion editor) is autmatically changed corresponding.

The file was created and edited with XTherion editor. Resulting in that 
problem.
My only solution was to edit the file in an external editor (without 
changing file format).
This does work now but the character within Xtherion editor is 
corrupted...

For me there is a file format problem inside XTherion (may be with 
special circumstances).
Or someone can explain to me what I did wrong.

regards, Torsten

Am 2026-05-28 17:31, schrieb Martin Budaj:

> Hi,
> 
> there is a simple rule: the encoding given in the first line of the .th 
> file should match the actual file encoding.
> 
> If you reencode your file to another encoding, you must modify the 
> first line (encoding xxx) accordingly.
> 
> Martin
> 
> On Thu, May 28, 2026 at 3:41 PM Torsten Schnitter 
> <torsten.schnitter at netcologne.de> wrote:
> 
> Hi all
> 
> Problem found and solved.
> 
> I do use commands to import different layouts inside the thconfig file:
> input ..\_Therion\_Layouts\area_blocks_hdens.th [1]
> 
> This file was edited with XTherion and saved as "iso8859-1":
> 
> As someone can see: text de .... seems to be OK (especially the 
> character ö)
> 
> When opening this file with Visual Studio Code it looks like:
> 
> Now the character does NOT look ok (and format of file is UTF-8 as you 
> can see at the bottom of the screenshot)
> 
> Just changing within Visual Studio Code this single character in line 2 
> (not changing the format) and saving the file does solve the problem:
> 
> But now the file looks somehow wrong inside XTherion:
> 
> Seems to be a problem with XTherin file editor and file formats....
> Attached the actual and working layout file.
> 
> For me I will not use XTherion file editor anymore and will edit files 
> with Visual Studio Code.
> 
> best regards, Torsten
> 
> Am 2026-05-28 12:07, schrieb knollesimage at t-online.de:
> 
> Same behavior here:
> 
> Running therion 6.4.0 on a thconfig file automatically inserts 
> "encoding UTF-8" in the first line, if it is not there already.
> 
> Regards, Michael.
> 
> From: Therion <therion-bounces at speleo.sk> On Behalf Of Torsten 
> Schnitter
> Sent: Mittwoch, 27. Mai 2026 14:00
> To: Therion <therion at speleo.sk>
> Subject: [Therion] Compiling error due to encoding
> 
> Hello
> 
> I have a thconfig file where I use the statement "language 
> de"/"language en" to switch language for the output.
> Within the config file I use some translations like this:
> ...
> text de "point passage-height:unsigned" "Ganghöhe"
> ...
> text en "point passage-height:unsigned" "passage height"
> 
> Every time I try to compile with "language de" I get an error:
> 
> #################### end of metapost log file ####################
> converting scraps ... done
> C:\Program Files\Therion\therion.exe: error -- Invalid utf-8 string!
> writing xtherion file ... done
> 
> As soon as I switch back to "language en" it does work.
> Therefore I'm pretty sure it is due to the special characters like 'ö'.
> 
> I opened the thconfig file with an external editor (Visual Studio 
> Code), removed the first line "encoding utf-8" and saved the file with 
> encoding "ISO 8859-1".
> 
> As soon as I open the thconfig file with XTherion and start compile the 
> format is resetted to utf-8 and within the thconfig file the first line 
> is replaced to "encoding utf-8" (checke this again with Visual Studio 
> Code". And the error above is the result.
> Only opening the config file and closing again without any changes does 
> change the encoding line in the config file to utf-8.
> 
> I'm using Therion 6.4.0 and can't remeber when this behaviour/problem 
> raised.
> I'm pretty sure some time ago this did work without error.
> 
> Any help is appreciated. Thanks in advance!
> regards, Torsten
> _______________________________________________
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> Therion at speleo.sk
> https://mailman.speleo.sk/listinfo/therion
> 
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Links:
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[1] http://area_blocks_hdens.th
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