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bash command line completion for pandoc
branch: master

README.markdown

pandoc-completion.bash

pandoc-completion.bash is a bash completion script for pandoc. It supports completion of pandoc's command-line options, as well as completion of filenames in the pandoc data directory, ~/.pandoc, and the csl styles directory, ~/.csl, where appropriate.

installation

First get pandoc-completion.bash,

git clone git@github.com:dsanson/pandoc-completion.git

or (if you don't want to be bothered with git)

curl -O https://raw.github.com/dsanson/pandoc-completion/master/pandoc-completion.bash

Then put something like

[[ -s "/path/to/pandoc-completion.bash" ]] && source "/path/to/pandoc-completion.bash"

in your .bashrc.

To use bash completion scripts with zsh, you need to load bashcompinit first, so put something like

autoload bashcompinit
bashcompinit
source "/path/to/pandoc-completion.bash"

in your .zshrc.

which version of pandoc?

New versions of pandoc sometimes bring new command-line options and sometimes remove old command-line options. I have not been as careful about keeping track of this as I might have been: I usually use the development version of pandoc, updating every couple of weeks. And I try to keep this script in sync with what I am using.

In recent commits, you will find a line like this

# Pandoc Version: 1.10.0.3

at the beginning of the script. The script should exactly match the options available in that version of pandoc. Since the command-line options are fairly stable, you probably don't need to worry about this too much.

A good quick way to check your version of pandoc against your version of pandoc-completion.bash is to run pandoc --help, and compare the output against the completion script, looking to see if the input and output formats match and if the options match.

some further details about the implementation

The script completes long options that take arguments as

--opt arg

rather than

--opt=arg

(although the documentation doesn't don't make this clear, pandoc supports both styles). But if you type something like

pandoc --opt=<tab>

it should still work as expected.

Some options take filenames as arguments, and the script tries to be smart about where it looks for possible filename completions:

  • --template: the current directory or ~/.pandoc/templates;
  • --csl: filenames ending in .csl, in the current directory or ~/.csl;
  • --citation-abbreviations: filenames ending in .json, in the current directory or ~/.csl;
  • --biliography: filenames ending in supported bibliography extensions (.bib, .mods, etc.), in the current directory or in ~/.pandoc;
  • --reference-odt and --reference-docx: filenames ending in .odt or .docx in the current directory or ~/.pandoc.

adding your own completion shortcuts

If there is an option that you use regularly, you might want to create a completion shortcut for it. For example, in my personal copy of pandoc-completions.bash, I have added two instances to the case-loop that occurs near the end of the script, so that -x expands to --latex-engine xelatex and -b expands to --bibliography $HOME/.pandoc/default.bib:

case "$cur" in
    -x)
      COMPREPLY=( "--latex-engine xelatex" )
      return 0
      ;;
    -b)
      COMPREPLY=( "--bibliography $HOME/.pandoc/default.bib")
      return 0
      ;;
    -*)
      COMPREPLY=( $(compgen -W "$opts" -- ${cur}) )
      return 0
      ;;
    *)
      COMPREPLY=( $(compgen -f -- ${cur}) )
      ;;
esac

pandoc.usage

This repository used to include both pandoc-completion.bash and pandoc.usage. The latter was a usage file for use with Compleat, a haskell program that generates bash and zsh completions based upon an abstract specification of a command's command line options. I hoped it would ultimately provide a more elegant solution and be easier to maintain, but

  1. I couldn't get it to provide completions for full paths to files not in the current directory;
  2. I couldn't get it to respect appropriate restrictions on completions.

So I removed pandoc.usage from the repo. If you are looking for it, the most recent version can be found here. If you can get it to work, let me know!

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