Divina Commandline is a word search tool for the Divine Comedy.
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#!/bin/bash
# This script scrapes digitaldante.columbia.edu to get the Petrocchi edition of the Divine Comedy.
# It downloads the source HTML from each canto's digitaldante webpage
# Then it isolates the HTML canto portion of the webpage
# Then it removes the HTML on the left and right of each line
# Then it removes the remaining bits of HTML (HTML to ASCII, removing <em></em> tags)
# The final canto is in a final named canticle-cantonumber
#I="inferno"
#R="purgatorio"
#P="paradiso"
#canticles=( "$I" "$R" "$P" )
BASE_URL="https://digitaldante.columbia.edu/dante/divine-comedy/"
### SOURCE CODE DOWNLOAD
#for canticle in "${canticles[@]}";
#do
canticle="inferno"
BASE_DIR="$canticle/"
i="34"
FILE_CANTO_SOURCE="$BASE_DIR$canticle-$i.source" # Source HTML from digitaldante
FILE_CANTO_HTML="$BASE_DIR$canticle-$i.html" # HTML of only canto, other source HTML removed
FILE_CANTO_BITS="$BASE_DIR$canticle-$i.bits" # Bits (tags) remain, surrounding HTML removed
FILE_CANTO="$BASE_DIR$canticle-$i" # Final canto
echo "Processing $canticle-$i"
CANTO_URL="$BASE_URL$canticle/$canticle-$i/"
wget --quiet -O - "$CANTO_URL" >> "$FILE_CANTO_SOURCE"
# Isolate canto in HTML
CANTO_START=$(grep -n translation-entry "$FILE_CANTO_SOURCE" | cut -d: -f1 | head -n1)
CANTO_END=$(( $(grep -n translation-entry "$FILE_CANTO_SOURCE" | cut -d: -f1 | sed -n '2p' ) - 6 ))
sed -i "$CANTO_END,$(wc -l $FILE_CANTO_SOURCE | cut -d' ' -f1)d" "$FILE_CANTO_SOURCE" && sed -i "1,$CANTO_START d" $FILE_CANTO_SOURCE && mv "$FILE_CANTO_SOURCE" "$FILE_CANTO_HTML"
# Remove surrounding HTML
cat "$FILE_CANTO_HTML" | awk -F '</span>|</span> ' '{print $2}' | awk -F '<br />|</p>' '{print $1}' >> tmp && mv tmp "$FILE_CANTO_BITS"
# Replace weird punctuation conversions in the donwload process (?)
WEIRD_PUNCT=( '&#8211;' '&#8212;' '&#8216;' '&#8217;' '&#8220;' '&#8221;' )
PUNCT_REPLACE=( "—" "–—" "‘" "’" "“" "”" )
for punct in ${!WEIRD_PUNCT[@]};
do
[[ ! -z $(grep "${WEIRD_PUNCT["$punct"]}" "$FILE_CANTO_BITS") ]] && sed -i "s/"${WEIRD_PUNCT["$punct"]}"/"${PUNCT_REPLACE["$punct"]}"/g" "$FILE_CANTO_BITS"
done
# Remove HTML tags for italics and the like
HTML_TAGS=( '<i>' '<\/i>' '<em>' '<\/em>' )
for tag in ${!HTML_TAGS[@]};
do
[[ ! -z $(grep "${HTML_TAGS["$tag"]}" "$FILE_CANTO_BITS") ]] && sed -i "s/"${HTML_TAGS["$tag"]}"//g" "$FILE_CANTO_BITS"
done
mv "$FILE_CANTO_BITS" "$FILE_CANTO"
rm "$BASE_DIR$canticle-$i.html"
#done