[texworks] A request about lpeg

Christophe Devalland christophe.devalland at gmail.com
Sun Jun 12 15:43:36 CEST 2016

Hi Stefan,
you solved my issue with lpeg on windows and many users using my program
with texworks were happy (
But one tells me that with 0.6.1 version of texworks, the lpeg.dll you
provide doesn't work anymore (see below your link on the old google drive).
Perhaps did you compile with lua 5.3 ?
It would be great if you were including lpeg statically inside texworks but
I also understand your point of vue about modularity.
Thank's for any help.
Best regards,

2014-12-23 15:46 GMT+01:00 Stefan Löffler <st.loeffler at gmail.com>:

> Hi,
> On 16.12.2014 23:37, Christophe Devalland wrote:
> > it's nice to provide lua scripts inside texworks but it would be great
> > to be able to use the lpeg library (a parsing expression grammars for
> > lua) in lua scripts.
> Good to hear that Lua is actually used ;).
> > On linux there is no problem because texworks-lua scripts use the lua
> > installed by the user.
> > On windows, the lua interpreter is included in texworks executable
> > during compilation but without lpeg. Would it be possible you compile
> > the next version with lpeg inside ? Many windows users tell me they
> > can't use my package because of this library missing.
> Generally, I don't want to compile in (too many) modules because it
> somewhat contradicts the idea of modules (i.e., something that you can
> plug in and out depending on what you need). Also, it increases the
> download size with something that is probably not used by a majority of
> users.
> That said, lpeg seems like a very general and useful extension in the
> context of an editor such as TeXworks (providing text parsing
> functionality). Therefore, I changed the build process for Lua to now
> use dlls. This again somewhat contradicts the idea of having everything
> in a single exe file to avoid "dll hell", but seemed the only (easy)
> way. lpeg is not included by default, but a suitable dll can be
> downloaded from Google Drive
> (
> https://drive.google.com/folderview?id=0B5iVT8Q7W44pNDlQVm9uRGpEWHc&tid=0B5iVT8Q7W44pMkNLblFjUzdQUVE
> > Lua 5.2 Modules). Just drop the dll in the same directory as
> TeXworks.exe and lua52.dll and it should work.
> Note that it should in principle be possible to use other modules as
> well, but I don't know exactly about the possible compatibility issues
> (e.g., does it need to be compiled with the same compiler? Does it need
> to be the same Lua version?). I tried briefly with some precompiled Lua
> 5.1 libraries I got off the internet which caused Tw to crash.
> Future Windows builds (i.e., later than r1390) should all use the new
> framework.
> Kind regards,
> Stefan
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