switch to xmlstarlet xpath tool

shell-scripts.d/xpath.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # An interactive xpath query commandline tool.
-# Stores your previous query.
+# Stores your previous query to reduce typing.
 
 # File for previous query
 touch .prev-xpath.tmp
@@ -16,26 +16,28 @@ NC='\033[0m' # no color
 # Ask for canto file
 clear
 read -p "Choose a canto: [i,r,p][1-34] " CANTO
-CANTICLE="$(echo $CANTO | tr -d -c a-z)"
-CANTO_NUM="$(echo $CANTO | tr -d -c 0-9)"
+canticle="$(echo $CANTO | tr -d -c a-z)"
+canto_num="$(echo $CANTO | tr -d -c 0-9)"
+pad_num="$(printf "%03d\n" $canto_num)"
 
 # Create complete filename
-if [[ "$CANTICLE" == 'i' ]]; then
-	CANTICLE='Inferno'
-	file="inferno-${CANTO_NUM}.xml"
-elif [[ "$CANTICLE" == 'r' ]]; then
-	CANTICLE='Purgatorio'
-	file="purgatorio-${CANTO_NUM}.xml"
-elif [[ "$CANTICLE" == 'p' ]]; then
-	CANTICLE='Paradiso'
-	file="paradiso-${CANTO_NUM}.xml"
+if [[ "$canticle" == 'i' ]]; then
+	canticle='Inferno'
+	file="$pad_num-inferno.xml"
+	echo $file
+elif [[ "$canticle" == 'r' ]]; then
+	canticle='Purgatorio'
+	file="$pad_num-purgatorio.xml"
+elif [[ "$canticle" == 'p' ]]; then
+	canticle='Paradiso'
+	file="$pad_num-paradiso.xml"
 else
 	echo "Not a valid canto file: $file"
 fi
 
 # Start interactive query
 if [[ -e "$file" ]]; then
-	clear && echo -e "You are searching ${CANTICLE^} ${CANTO_NUM}.\nAdd a trailing slash ${GREEN}\`/\`${NC} to your search before submitting it. The default first two search choices are ${GREEN}\`canto\`${NC} and then ${GREEN}\`terzine\`${NC}. Press ${GREEN}<enter>${NC} for those defaults and type something else to search that.\n"
+	clear && echo -e "You are searching ${canticle^} ${CANTO_NUM}.\nAdd a trailing slash ${GREEN}\`/\`${NC} to your search before submitting it. The default first two search choices are ${GREEN}\`canto\`${NC} and then ${GREEN}\`terzine\`${NC}. Press ${GREEN}<enter>${NC} for those defaults and type something else to search that.\n"
 	read -p "Load previous: (Y)/n " PREV
 	case "$PREV" in
 		N|n)
@@ -52,13 +54,13 @@ if [[ -e "$file" ]]; then
 		if [[ "${nsearch: -1}" == / ]]; then		# if last char trailing slash then search
 			path="${nsearch::-1}"			# remove trailing slash
 			echo "$path" > .prev-xpath.tmp		# store query for next time
-			# perform the search (requires `xmllint` and `batcat` pager)
-			xmllint --xpath "$path" $file | batcat -l xml
+			# perform the search (requires `xmlstarlet` and `bat` pager)
+			xmlstarlet sel -t -v "$path" $file | batcat -l xml
 			exit
-		elif [[ "$i" == 0 ]] && [[ "$nsearch" == '' ]]; then 	# load '/canto' query on first loop
-			search="/canto"
-		elif [[ "$nsearch" == '/canto' ]]; then			# load '/canto/terzine' on second loop
-			search="/canto/terzine"
+		elif [[ "$i" == 0 ]] && [[ "$nsearch" == '' ]]; then 	# load '/TEI/text' query on first loop
+			search="_:TEI/_:text/_:"
+		elif [[ "$nsearch" == '_:TEI/_:text/_:' ]]; then			# load '/TEI/text/canto/tercets' on second loop
+			search="_:TEI/_:text/_:canto/_:tercets/_:"
 		else
 			search="${nsearch}"				# else keep search the same
 		fi