#!/usr/bin/bash                                                                                                        
 
wd=$(dirname "$0")
pyth=$(which python)
latex=$(which latex)
xelatex=$(which xelatex)
mkindex=$(which makeindex)

input="$wd/ALMSGrammar.txt"
texfile="$wd/build/ALMSGrammar.tex"

INDICES=
LABEL_SLOTS=
CATEGORY_LIST=

while getopts "isc:" opt; do
  case $opt in
    i)
      INDICES=1
      ;;
    s)
      LABEL_SLOTS=1
      ;;
    c)
      CATEGORY_LIST=$OPTARG
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      echo "Usage:" >&2
      echo -e "   -i \tgenerate indices" >&2
      echo -e "   -s \tlabel slots" >&2
      exit 1
      ;;
  esac
done

set -- "$input" "$texfile"

[ -z "$INDICES" ] || set -- "$@" "--indices"
[ -z "$LABEL_SLOTS" ] || set -- "$@" "--label-slots"

[ -z "$CATEGORY_LIST" ] || set -- "$@" "--categories" "$CATEGORY_LIST"

$pyth "$wd/texify_grammar.py" "$@"

pushd "$wd/build"

if [ ! -z $INDICES ]
then
  "$latex" ALMSGrammar.tex
  "$mkindex" tokens
  "$mkindex" categories
  "$mkindex" todo
  "$latex" ALMSGrammar.tex
fi

"$xelatex" ALMSGrammar.tex
popd

mv "$wd/build/ALMSGrammar.pdf" "$wd"
open "$wd/ALMSGrammar.pdf"

true && echo "&& checks if the previous command succeeded.  This should print."
false && echo "This shouldn't print because 'false' returns error"
true || echo "|| checks if the previous command failed.  This won't print."
false || echo "...but this will."

true && true && true && echo "You can chain on more than one."

true &&
        echo "You can break && statements across lines to avoid really wide scripts"

echo "Pipes also can be broken across lines like that" |
        cat