current file as environmental variable

[kbro237]

Thanks for this project! I'm currently evaluating whether I can replace pp with panda or if I still need a preprocessor like upp.

Is there a way to access the name of the current file from panda? For example, with pp I used the macro !exec(date -r !file "+%Y-%m-%d") to set the metadata date to the date of the file's last modification.

[CDSoft]

Hi,

Panda does not know the current file since it works on the AST, not on the file. A workaround would be to set an environment variable before calling panda.

On the other side, pandoc provides a Lua table PANDOC_STATE which contains information about the input files. I can check if this table can be made available to panda.

[CDSoft]

I'm testing something in the branch input_and_output_files:

• we can execute scripts with icmd instead of cmd to include the result of the command as a markdown text instead of in a code block
• there are two variables: input_file and output_file

Thus we can write:

% test mdate
% someone
% `date -r {{input_file}} "+%Y-%m-%d"`{icmd=sh}

[CDSoft]

I've merged the branch input_and_output_files. I've also added similar variables to upp.