From ee103902c141cdc3dce565af453b589fd1fc7a82 Mon Sep 17 00:00:00 2001
From: Louie Shprung <lshprung@scu.edu>
Date: Mon, 21 Nov 2022 22:00:04 -0800
Subject: Rewrite in POSIX shell

---
 Makefile     |  4 ++--
 README       |  4 ++--
 src/index.rb | 27 ---------------------------
 src/index.sh | 43 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 47 insertions(+), 31 deletions(-)
 delete mode 100755 src/index.rb
 create mode 100755 src/index.sh

diff --git a/Makefile b/Makefile
index 8812bbe..ac6a91b 100644
--- a/Makefile
+++ b/Makefile
@@ -47,9 +47,9 @@ $(DOCUMENTS_DIR): $(RESOURCES_DIR) $(MANUAL_FILE)
 $(INFO_PLIST_FILE): src/Info.plist $(CONTENTS_DIR)
 	cp src/Info.plist $@
 
-$(INDEX_FILE): src/index.rb $(DOCUMENTS_DIR)
+$(INDEX_FILE): src/index.sh $(DOCUMENTS_DIR)
 	rm -f $@
-	ruby src/index.rb $(DOCUMENTS_DIR)/*.html | sqlite3 $@
+	src/index.sh $@ $(DOCUMENTS_DIR)/*.html
 
 $(ICON_FILE): src/icon.png $(DOCSET_DIR)
 	cp src/icon.png $@
diff --git a/README b/README
index b1e6da0..ff57476 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-Here is a script and a Makefile for generating a GNU Automake docset for Dash. The script is based on benzado's script for GNU Make https://github.com/benzado/gnu-make-dash-docset.
+Here is a script and a Makefile for generating a GNU Automake docset for Dash. The script is loosely based on benzado's script for GNU Make https://github.com/benzado/gnu-make-dash-docset.
 
 - GNU Automake: https://www.gnu.org/software/automake/
 - Dash: https://kapeli.com/dash
@@ -9,7 +9,7 @@ will be downloaded from www.gnu.org and packaged appropriately.
 
 Requirements:
 
+- any POSIX-compliant shell
 - curl
 - make
-- ruby
 - sqlite3
diff --git a/src/index.rb b/src/index.rb
deleted file mode 100755
index 9c66c81..0000000
--- a/src/index.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-require 'pathname'
-
-puts %Q[
-  CREATE TABLE searchIndex(id INTEGER PRIMARY KEY, name TEXT, type TEXT, path TEXT);
-  CREATE UNIQUE INDEX anchor ON searchIndex (name, type, path);
-]
-
-INSERT_SQL = %Q[
-  INSERT INTO searchIndex(name, type, path) VALUES ('%s','%s','%s');
-]
-
-PATTERN = %r[<title>(.*)\(automake\)(.*)</title>]
-
-def quote(s)
-  s.gsub(/&amp;/, '&').gsub(/'/, "\\'")
-end
-
-ARGV.each do |arg|
-  Pathname.glob(arg) do |path|
-    match = path.each_line.lazy.map { |line| PATTERN.match(line) }.find { |m| m }
-    if match
-      printf INSERT_SQL, quote(match[1]), 'Guide', path.basename
-    else
-      $stderr.puts "%{path.basename}: no title found"
-    end
-  end
-end
diff --git a/src/index.sh b/src/index.sh
new file mode 100755
index 0000000..f4d898e
--- /dev/null
+++ b/src/index.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env sh
+
+DB_PATH="$1"
+shift
+
+get_title() {
+	FILE="$1"
+
+	PATTERN="<title>.*\(automake\).*</title>"
+
+	#Find pattern in file
+	grep -Eo "$PATTERN" "$FILE" | 
+		#Remove tag
+		sed 's/<[^>]*>//g' | \
+		#Remove '(automake)'
+		sed 's/(automake)//g' | \
+		#Remove trailing space
+		sed 's/[ ]*$//g' | \
+		#Replace '&amp' with '&'
+		sed 's/&amp/&/g'
+}
+
+insert() {
+	NAME="$1"
+	TYPE="$2"
+	PAGE_PATH="$3"
+
+	sqlite3 "$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
+done
-- 
cgit