From ba2e24c9a7beb20281af7357f18b18aa94bd108c Mon Sep 17 00:00:00 2001
From: Louie S <louie@example.com>
Date: Sat, 11 Mar 2023 20:35:06 -0800
Subject: Improve HTML parsing; index the index entries

---
 .gitignore   |  4 +--
 Makefile     |  1 +
 README       |  1 +
 src/index.sh | 92 +++++++++++++++++++++++++++++++++++++++++++-----------------
 4 files changed, 71 insertions(+), 27 deletions(-)

diff --git a/.gitignore b/.gitignore
index 9941ba2..4ba0d40 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
-/GNU_Make.docset
-/GNU_Make.tgz
+/GNU_Bison.docset
+/GNU_Bison.tgz
 /tmp
diff --git a/Makefile b/Makefile
index 5a0205e..8a6a2ad 100644
--- a/Makefile
+++ b/Makefile
@@ -50,6 +50,7 @@ $(INFO_PLIST_FILE): src/Info.plist $(CONTENTS_DIR)
 $(INDEX_FILE): src/index.sh $(DOCUMENTS_DIR)
 	rm -f $@
 	src/index.sh $@ $(DOCUMENTS_DIR)/*.html
+	src/index.sh -i $@ $(DOCUMENTS_DIR)/Index-of-Terms.html
 
 $(ICON_FILE): src/icon.png $(DOCSET_DIR)
 	cp src/icon.png $@
diff --git a/README b/README
index 6f64279..df3447f 100644
--- a/README
+++ b/README
@@ -12,4 +12,5 @@ Requirements:
 - any POSIX-compliant shell
 - curl
 - make
+- pup
 - sqlite3
diff --git a/src/index.sh b/src/index.sh
index 0a2a76c..345c9b3 100755
--- a/src/index.sh
+++ b/src/index.sh
@@ -1,23 +1,16 @@
 #!/usr/bin/env sh
 
-DB_PATH="$1"
-shift
+create_table() {
+	sqlite3 "$DB_PATH" "CREATE TABLE IF NOT EXISTS searchIndex(id INTEGER PRIMARY KEY, name TEXT, type TEXT, path TEXT);"
+	sqlite3 "$DB_PATH" "CREATE UNIQUE INDEX IF NOT EXISTS anchor ON searchIndex (name, type, path);"
+}
 
 get_title() {
 	FILE="$1"
 
-	PATTERN="<title>.*\(Bison.*\).*</title>"
-
-	#Find pattern in file
-	grep -Eo "$PATTERN" "$FILE" | 
-		#Remove tag
-		sed 's/<[^>]*>//g' | \
-		#Remove '(automake)'
+	pup -p -f "$FILE" 'title text{}' | \
 		sed 's/(Bison.*)//g' | \
-		#Remove trailing space
-		sed 's/[ ]*$//g' | \
-		#Replace '&amp' with '&'
-		sed 's/&amp/&/g'
+		sed 's/\"/\"\"/g'
 }
 
 insert() {
@@ -28,16 +21,65 @@ insert() {
 	sqlite3 "$DB_PATH" "INSERT INTO searchIndex(name, type, path) VALUES (\"$NAME\",\"$TYPE\",\"$PAGE_PATH\");"
 }
 
-# Create table
-sqlite3 "$DB_PATH" "CREATE TABLE searchIndex(id INTEGER PRIMARY KEY, name TEXT, type TEXT, path TEXT);"
-sqlite3 "$DB_PATH" "CREATE UNIQUE INDEX anchor ON searchIndex (name, type, path);"
-
-# Get title and insert into table for each html file
-while [ -n "$1" ]; do
-	unset PAGE_NAME
-	PAGE_NAME="$(get_title "$1")"
-	if [ -n "$PAGE_NAME" ]; then
-		insert "$PAGE_NAME" "Guide" "$(basename "$1")"
-	fi
-	shift
+insert_term() {
+	LINK="$1"
+	NAME="$(echo "$LINK" | pup -p 'a text{}' | sed 's/"/\"\"/g')"
+	TYPE="Entry"
+	PAGE_PATH="$(echo "$LINK" | pup -p 'a attr{href}')"
+
+	insert "$NAME" "$TYPE" "$PAGE_PATH"
+}
+
+
+insert_index_terms() {
+	# Get each term from an index page and insert
+	while [ -n "$1" ]; do
+		grep -Eo "<a href.*></a>" "$1" | while read -r line; do
+			insert_term "$line"
+		done
+
+		shift
+	done
+}
+
+
+insert_pages() {
+	# Get title and insert into table for each html file
+	while [ -n "$1" ]; do
+		unset PAGE_NAME
+		PAGE_NAME="$(get_title "$1")"
+		if [ -n "$PAGE_NAME" ]; then
+			insert "$PAGE_NAME" "Guide" "$(basename "$1")"
+		fi
+
+
+		shift
+	done
+}
+
+TYPE="PAGES"
+
+# Check flags
+while true; do
+	case "$1" in
+		-i|--index)
+			TYPE="INDEX"
+			shift
+			;;
+		*)
+			break
+	esac
 done
+
+DB_PATH="$1"
+shift
+
+create_table
+case "$TYPE" in
+	PAGES)
+		insert_pages "$@"
+		;;
+	INDEX)
+		insert_index_terms "$@"
+		;;
+esac
-- 
cgit