Passing additional flags to `pygmentize` / Using local lexers with the `-x` flag

[schtandard]

I sometimes want to use a custom pygments lexer residing in the document directory (i.e. not installed system-wide). This can be achieved using pygmentize's -x option. Of course, minted is calling pygmentize for me, so I have to get it to pass that flag for me. In the past, I could just enter it as part of the "language name". For example, if I have a file named pygmentsmod.py in the document directory in which I define a pygments lexer MyTexLexer, I could say

\mintinline{./pygmentsmod.py:MyTexLexer -x}{\relax}

This no longer works, as \minted@opt@quote now quotes my "language", including the -x. I can still trick minted by using

\mintinline{./pygmentsmod.py:MyTexLexer" -x"}{\relax}

instead (on Windows), but while while I found the previous hack to be somewhat acceptable, this is just ugly.

So, I would like to request

• either explicit support for this use-case (e.g. by detecting the "language" ending with -x)
• or the ability to add arbitrary flags to the command line call performed by minted (in the usual key-value fashion)
• or minted just setting the -x flag for all calls (which could lead to conflicts when there is a file with the same name as a pygmentize language, but won't have an effect otherwise).

[jeeger]

This used to work, but I can't get it to work with current versions of minted.

[jeeger]

I've successfully modified the old version to work again.

\makeatletter
\newcommand{\minted@addto@optlistclswitch}[2]{%
  \expandafter\def\expandafter#1\expandafter{#1%
    \detokenize{#2}\space}}
\newcommand{\minted@addto@optlistcl@langswitch}[2]{%
  \expandafter\let\expandafter\minted@tmp\csname #1\endcsname
  \expandafter\def\expandafter\minted@tmp\expandafter{\minted@tmp%
    \detokenize{#2}\space}%
  \expandafter\let\csname #1\endcsname\minted@tmp}
\newcommand{\minted@def@optcl@filterswitch}[2]{%
  \define@booleankey{minted@opt@g}{#1}%
  {\minted@addto@optlistclswitch{\minted@optlistcl@g}{#2}{}%
    \@namedef{minted@opt@g:#1}{true}}
  {\minted@addto@optlistclswitch{\minted@optlistcl@g}{}{}%
    \@namedef{minted@opt@g:#1}{false}}
  \define@booleankey{minted@opt@g@i}{#1}%
  {\minted@addto@optlistclswitch{\minted@optlistcl@g@i}{#2}{}%
    \@namedef{minted@opt@g@i:#1}{true}}
  {\minted@addto@optlistclswitch{\minted@optlistcl@g@i}{}{}%
    \@namedef{minted@opt@g@i:#1}{false}}
  \define@booleankey{minted@opt@lang}{#1}%
  {\minted@addto@optlistcl@langswitch{minted@optlistcl@lang\minted@lang}{#2}{}%
    \@namedef{minted@opt@lang\minted@lang:#1}{true}}
  {\minted@addto@optlistcl@langswitch{minted@optlistcl@lang\minted@lang}{}{}%
    \@namedef{minted@opt@lang\minted@lang:#1}{false}}
  \define@booleankey{minted@opt@lang@i}{#1}%
  {\minted@addto@optlistcl@langswitch{minted@optlistcl@lang\minted@lang@i}{#2}{}%
    \@namedef{minted@opt@lang\minted@lang@i:#1}{true}}
  {\minted@addto@optlistcl@langswitch{minted@optlistcl@lang\minted@lang@i}{}{}%
    \@namedef{minted@opt@lang\minted@lang@i:#1}{false}}
  \define@booleankey{minted@opt@cmd}{#1}%
  {\minted@addto@optlistclswitch{\minted@optlistcl@cmd}{#2}{}%
    \@namedef{minted@opt@cmd:#1}{true}}
  {\minted@addto@optlistclswitch{\minted@optlistcl@cmd}{}{}%
    \@namedef{minted@opt@cmd:#1}{false}}
}
\minted@def@optcl@filterswitch{allowlocal}{-x}
\makeatother
\setminted{allowlocal}

[gpoore]

minted version 3.0 is now under development, thanks to a grant from the TeX Users Group. It will include official support for custom lexers. It will also be able to be extended using Python, not just LaTeX macro programming, which will make possible many new lexer-related features. Progress on custom lexers will be tracked in #372. Initial beta releases of minted version 3.0 are expected by early 2024.