md_pdfmaker

#!/bin/bash

# Make PDF file(s) from docs/simdocs/ .md files
# Defaults to all, or specify filename(s)
#
# Note that the PDF document title comes from the first line of the MD

function dopdf () {
    local IN="$(basename $1 ".md")"
    if ! [[ "$IN" =~ _doc$ ]]; then
        IN="${IN}_doc"
    fi
    if ! [[ "$IN" =~ \.md$ ]]; then
        IN="${IN}.md"
    fi
    local R="$(readlink -nf "$IN")"
    [ -n "$R" ] && IN="$R"
    local ON="$(dirname "$1")/$(basename "$IN" ".md").pdf"
    echo "$IN => $(basename $ON)"
    # Generating PDF with working internal links requires
    # - No Unicode chars (checkmark = &#10003), ǂ = ≠ &#02260
    # - LaTex processor (html handles Unicode, but not links)
    # This work-around seems OK, at least for hp2100, for now.
    # Remove <!-- notpdf --> blocks (replaced with yaml meta
    # block's data  in PDF generation

    if ! [ -f "$IN" ]; then
        echo "${IN}: no such file"
        return
    fi
    mkdir -p /tmp/pdfmaker
    trap "rm -rf /tmp/pdfmaker" EXIT INT
    if [ "$IN" -nt "$ON" ] || [ "$ME" -nt "$ON" ]; then
        IN="$(basename "$IN")"
        echo "  - Updating"
        LANG=en_US.UTF-8 sed -e's/&#10003;/Y/g;s/ǂ/\/=/g;/^<!-- notpdf -->/,/^<!-- \/notpdf -->/d;' "${IN}" >/tmp/pdfmaker/${IN}
        pandoc  "/tmp/pdfmaker/${IN}" -o "$ON" \
            || exit 97
    else
        echo "  - Already up to date"
    fi
}

ME="$(readlink -e $0)"
[ -z "$ME" ] && exit 90

cd "$(dirname "$0")/docs/simdocs" || exit 99

if [ -n "$1" ]; then
    while true; do
        [ -z "$1" ] && exit
        dopdf "$1"; 
        shift
    done
    exit
fi
for F in *_doc.md; do dopdf "$F"; done