Convert TTF to AFM files, fix format

ttf-to-afm

#!/usr/bin/env bash

set -e

typeface="$1"

if [ "$typeface" == "" ]; then
    echo >&2 "Usage: $0 typeface"
    exit 1
fi

set -u

sourcepath="$HOME/Library/Fonts"
converter='ttf2afm'

rm -rf "$typeface"
mkdir "$typeface"
cd "$typeface"

sourcefiles=($sourcepath/$typeface*.ttf)
echo "Found ${#sourcefiles[@]} font files for typeface $typeface"

cp "${sourcefiles[@]}" . ||
    (echo >&2 "Typeface $typeface not found"; exit 1)

# The sed script is adapted from the description found at
# <http://r.789695.n4.nabble.com/How-to-enable-Arial-font-for-postcript-pdf-figure-on-Windows-td3017809.html>
# We assume fixed line numbers for the variables to replace -- otherwise this
# would be quite hard to realise: we'd have to guess at the right lines, and I
# am not familiar enough with the AFM format to do this, although I thing that
# it would probably be safe to search for exact strings.

fontfiles=(./*.ttf)
for f in "${fontfiles[@]}"; do
    ($converter "$f" |
        sed -e '/^Copyright/ d'     \
            -e '3 s/^/FontName /'   \
            -e '4 s/^/FullName /'   \
            -e '5 s/^/FamilyName /' \
            -e '6 s/^/Weight /'     \
            > "${f%.ttf}.afm") &
done

wait

rm *.ttf