[ET Trac] #2552: VERSION option in configuration.ccl is overly restrictive in allowed characters

[Roland Haas]

#2552: VERSION option in configuration.ccl is overly restrictive in allowed characters

 Reporter: Roland Haas
   Status: new
Milestone: 
  Version: development version
     Type: bug
 Priority: minor
Component: 

I have a file `configuration.ccl` like so:

```
# Configuration definitions for thorn CMake

PROVIDES CMake
{
  SCRIPT src/detect.sh
  LANG bash
  VERSION 3.15.0
  OPTIONS CMAKE_DIR CMAKE_INSTALL_DIR
}
```

and CST fails with:

```
CST error in /data/rhaas/postdoc/gr/cactus/CactusAMReX/arrangements/ExternalLibraries/CMake/configuration.ccl (at 7)
  -> SYNTAX ERROR
     HINT: ERROR ON LINE 7:
  SCRIPT src/detect.sh
  LANG bash
  VERSION 3.15.0
           ^
           | here
FOUND CHARACTER: '.'
EXPECTED CHARACTER(S): '-', '0' to '9', 'A' to 'Z', '\', '_', 'a' to 'z', '}'
```

ie the dot “.” is not allowed in version strings. Since these were modeled \(somewhat\) after Debian version numbers, here’s an example of one of those `2:3.6.19-1~bpo70+1+b1` and [https://manpages.debian.org/buster/dpkg-dev/deb-version.7.en.html](https://manpages.debian.org/buster/dpkg-dev/deb-version.7.en.html) for their definition \(upstream version could be any string, really\).

--
Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2552/version-option-in-configurationccl-is
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