added xmlstarlet demos

.gitignore

@@ -0,0 +1,2 @@
+output
+test.sh

README.md

@@ -1,24 +1,37 @@
-# xmllint demo
+# xmllint & xmlstarlet demo
 
-> A simple bash script to explore xmllint usage
+> A simple bash script to explore xmllint & xmlstarlet usage
 
 [xmllint Documentation](http://www.xmlsoft.org/xmllint.html)<br />
+[xmlstarlet Documentation](http://xmlstar.sourceforge.net/docs.php)<br />
 
-### Installation
-Ubuntu, run apt-get install libxml2-utils (if not installed already)<br />
-Mac OS X (Yosemite), installed by default
+### Installation for xmllint
+Mac OS X (Yosemite) installed by default<br/>
+
+    Ubuntu: sudo apt-get install libxml2-utils
+
+
+### Installation for xmlstarlet
+    For Mac: brew install xmlstarlet
+    For Ubuntu: sudo apt-get install xmlstarlet
 
 ### xmllint usage demos in this project
 1. --xpath
 2. --repeat
 3. --timing
 
+### xmlstarlet usage demos in this project
+1. -ed -d
+2. -ed -u
+
 ### Running the demo
 
-Project includes below sample xml files<br/>
+Project includes below sample xml file<br/>
 [books.xml](data/books.xml)<br/>
-[food.xml](data/food.xml)<br/>
 
-### Make app.sh executable and run the script
-    ./app.sh data/food.xml
-    ./app.sh data/books.xml
+### Make xmllint-demo.sh executable and run the script
+    ./xmllint.sh data/books.xml
+
+
+### Make xmlstarlet-demo.sh executable and run the script
+    ./xmlstarlet.sh data/books.xml

app.sh → xmllint-demo.sh

@@ -2,19 +2,11 @@
 
 function main() {
   # check if file is food.xml
-  if [ $1 == 'data/food.xml' ]; then
-    processBreakfastMenu $1
-  # check if file is books.xml
-  elif [ $1 == 'data/books.xml' ]; then
+  if [ $1 == 'data/books.xml' ]; then
     processBookstore $1
   fi
 }
 
-function processBreakfastMenu() {
-  echo $'usage of --path /breakfast_menu/food[1]\n'
-  xmllint --xpath '/breakfast_menu/food[1]' $1
-}
-
 function processBookstore() {
   echo $'usage of --path /bookstore/book[@category="cooking"]/author/text()\n'
   xmllint --xpath '/bookstore/book[@category="cooking"]/author/text()' $1

xmlstarlet-demo.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+function main() {
+  # check if file is food.xml
+  if [ $1 == 'data/books.xml' ]; then
+    processBookstore $1
+  fi
+}
+
+function processBookstore() {
+  xmlstarlet ed -d '/bookstore/book[@category="cooking"]' $1 > output/books-d.xml
+  xmlstarlet ed -u '/bookstore/book[@category="cooking"]/@category' -v 'baking' $1 > output/books-u.xml
+  xmlstarlet ed -u '/bookstore/book[@category="cooking"]/title' -v 'Everyday baking' $1 > output/books-uv.xml
+  xmlstarlet ed -u '/bookstore/book[@category="cooking"]/title[@lang="en"]/@lang' -v 'es' $1 > output/books-uv1.xml
+  xmlstarlet ed -u '/bookstore/book/@category' -v 'food' $1 > output/books-uv2.xml
+}
+
+# create output DIR if not presetn
+mkdir -p output
+echo 'File being read -' $1
+main $1