flap is confused by the use of `\includesvg` as a parameter

[MayeulC]

To avoid compiling svgs during externalization, I have the following directive in my preamble:

\tikzset{external/optimize command away={\includesvg}{1}}

That confuses flap, which says ValueError: Unexpected END_GROUP '}' in file 00-includes/preamble.tex (line 101, column 54).

Backtrace

``` % flap -v main.tex flapped FLaP 0.6.0 File Line Column LaTeX Command ------------------------------------------------------------------------------- main.tex 10 1 \input{00-includes/preamble.tex} Traceback (most recent call last): File "/home/mcantan/.local/bin/flap", line 8, in sys.exit(main()) File "/home/mcantan/.local/lib/python3.10/site-packages/click/core.py", line 829, in __call__ return self.main(*args, **kwargs) File "/home/mcantan/.local/lib/python3.10/site-packages/click/core.py", line 782, in main rv = self.invoke(ctx) File "/home/mcantan/.local/lib/python3.10/site-packages/click/core.py", line 1066, in invoke return ctx.invoke(self.callback, **ctx.params) File "/home/mcantan/.local/lib/python3.10/site-packages/click/core.py", line 610, in invoke return callback(*args, **kwargs) File "/home/mcantan/.local/lib/python3.10/site-packages/flap/ui.py", line 117, in main .run(tex_file, output) File "/home/mcantan/.local/lib/python3.10/site-packages/flap/ui.py", line 43, in run request.execute() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/engine.py", line 84, in execute tokens = self._rewrite(self.read_root_tex, File "/home/mcantan/.local/lib/python3.10/site-packages/flap/engine.py", line 94, in _rewrite return parser.rewrite() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 90, in rewrite result += self._rewrite_one() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 98, in _rewrite_one return self._rewrite_command() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 114, in _rewrite_command return macro.rewrite(self) File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/macros/commons.py", line 54, in rewrite return self._execute(parser, invocation) File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/macros/inlining.py", line 37, in _execute return parser._spawn(parser._create.as_tokens(content, link), dict()).rewrite() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 90, in rewrite result += self._rewrite_one() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 96, in _rewrite_one return self._rewrite_group() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 105, in _rewrite_group tokens += self._rewrite_one() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 96, in _rewrite_one return self._rewrite_group() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 105, in _rewrite_group tokens += self._rewrite_one() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 96, in _rewrite_one return self._rewrite_group() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 105, in _rewrite_group tokens += self._rewrite_one() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 98, in _rewrite_one return self._rewrite_command() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 114, in _rewrite_command return macro.rewrite(self) File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/macros/commons.py", line 53, in rewrite invocation = self._parse(parser) File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/macros/commons.py", line 64, in _parse self._capture_arguments(parser, invocation) File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/macros/commons.py", line 127, in _capture_arguments invocation.append_argument("link", parser.capture_group()) File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 237, in capture_group tokens = self._accept(lambda token: token.begins_a_group) File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 135, in _accept self._raise_unexpected_token() File "/home/mcantan/.local/lib/python3.10/site-packages/flap/latex/parser.py", line 144, in _raise_unexpected_token raise ValueError(error) ValueError: Unexpected END_GROUP '}' in file 00-includes/preamble.tex (line 101, column 54). ```

I'll comment that line out and report the next error :)