OneNote to Markdown

md.to.wiki.sh

#!/bin/bash

# This is an example comment on this issue

# Get arguments
infile=${1}

outdir=${2-"output"}
mkdir -p $outdir

# Create scratchfile for modifying
scratchfile=$outdir/"scratch.md"
cp -rf $infile $scratchfile

# Find all lines that start with a date, formatted EXACTLY this way
IFS=$'\n'
matches=($(grep -nP "^(Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday), (January|February|March|April|May|June|July|August|September|October|November|December) \d{1,2}, \d{4}" $scratchfile))

# Loop over indices in reverse
indices=( ${!matches[@]} )
for ((i=${#indices[@]} - 1; i >=0; i--)); do

    # Separate the line number and date from the full match string (% matches beginning, # matches end)
    linenum=${matches[i]%:*}
    echo $linenum

    # Line of note title (2 lines above date)
    titleline=$(($linenum-2))
    title=$(tail -n+$titleline $scratchfile | head -n1)
    if date -d$title; then
        title=$(date -d+$title +%Y-%m-%d)
    else 
        linedate=${matches[i]#*:}
        linedate=$(date -d+$linedate +%Y-%m-%d)
        title=$linedate
    fi
    outfile=$outdir/${title}.wiki

    ## Get output file string and remove it from scratchfile
    tail -n+$titleline $scratchfile >> $outfile
    sed -i "$titleline,$ d" $scratchfile

    ## Format first line of output file as vimwiki title
    sed -i -E '1 s/(.*)/= \1 =/g' $outfile

done

rm -rf $scratchfile

exit 0