On 9 May 2016 at 14:03, Vincent Belaïche <vincent.belai...@gmail.com> wrote:
> Hello Gavin,
>>
>> Latest version at
>>
>> http://svn.savannah.gnu.org/viewvc/trunk/util/texi2dvi?revision=7147&root=texinfo&view=markup
>
> Ok,
>
> I have done the following modifications:
>
> 1) use sed instead of grep to test whether the filename has funny
> characters
> => this way tangling with LC_ALL is not needed, neither running under
> round-bracketed subshell
I used LC_ALL so that [a-z] does the right thing (match 26 lower-case
characters from a to z). Apparently this can break depending on locale
settings. Are you saying that sed treats it differently?
> 2) Choose the egroup character
> => so you could have '>' in the filename
> (*nix only, > is not a valid filename char in MSW)
I don't think we can use the ${PARAMETER:OFFSET:LENGTH} feature of
bash as it's a bash extension to the Bourne shell.
References:
https://wiki.ubuntu.com/DashAsBinSh
http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html
> 3) re-catcode only those funny characters that are actually in the
> filename
>
> 4) use catcode 12 (other) rather than 11 (letter) for re-catcoding
OK, makes sense because these characters aren't "letters".
> 5) Make filename a separate argument (so MSYS translation stuff is not
> jeopardized)
I don't know what you mean by this. Do you mean using the
"_run_tex_in_input" variable?
> 6) support '%' in filename (that did not work in your update because it
> was not part of the re-catcoded characters
OK.
> 7) support "'" in filename (no TeX tricks here, only sh escaping)
Right, because the command is run with "eval".
> 8) \string-prefix '^' in case of filename containing a quadrigram
Is this necessary? The catcode of ^ is changed so sequences like ^^00
shouldn't get special treatment. It only gets transformed if ^ has
catcode 7 (for superscript).
> I guess that with all those changes, but except for the space that is a
> deep tex engine limitation, only the Devil could find a valid filename
> not working.
>
> Vincent.
>
