+#!/bin/sh
+
+set -e
+
+# use a safer version of echo (no option)
+echo()
+{
+ printf "%s\n" "$*"
+}
+
+debug()
+{
+ echo "$@" >&2
+}
+
+# $1: node sequence number (ex: ec_node4)
+ec_parse_get_first_child()
+{
+ local first_child=${1}_first_child
+ echo $(eval 'echo ${'$first_child'}')
+}
+
+# $1: node sequence number (ex: ec_node4)
+ec_parse_get_next()
+{
+ local next=${1}_next
+ echo $(eval 'echo ${'$next'}')
+}
+
+# $1: node sequence number (ex: ec_node4)
+ec_parse_iter_next()
+{
+ local seq=${1#ec_node}
+ seq=$((seq+1))
+ local next=ec_node${seq}
+ if [ "$(ec_parse_get_id $next)" != "" ]; then
+ echo $next
+ fi
+}
+
+# $1: node sequence number (ex: ec_node4)
+ec_parse_get_id()
+{
+ local id=${1}_id
+ echo $(eval 'echo ${'$id'}')
+}
+
+# $1: node sequence number (ex: ec_node4)
+ec_parse_get_strvec_len()
+{
+ local strvec_len=${1}_strvec_len
+ echo $(eval 'echo ${'$strvec_len'}')
+}
+
+# $1: node sequence number (ex: ec_node4)
+# $2: index in strvec
+ec_parse_get_str()
+{
+ if [ $# -ne 2 ]; then
+ return
+ fi
+ local str=${1}_str${2}
+ echo $(eval 'echo ${'$str'}')
+}
+
+# $1: node sequence number (ex: ec_node4)
+# $2: node id (string)
+ec_parse_find_first()
+{
+ if [ $# -ne 2 ]; then
+ return
+ fi
+ local node_seq=$1
+ while [ "$node_seq" != "" ]; do
+ local id=$(ec_parse_get_id $node_seq)
+ if [ "$id" = "$2" ]; then
+ echo $node_seq
+ return 0
+ fi
+ node_seq=$(ec_parse_iter_next $node_seq)
+ done
+}
+
+path=$(dirname $0)
+
+yaml=$(mktemp)
+cat << EOF > $yaml
+type: or
+children:
+- type: seq
+ id: hello
+ help: Say hello to someone
+ children:
+ - type: str
+ string: hello
+ - type: or
+ id: name
+ help: Name of the person to greet
+ children:
+ - type: str
+ string: john
+ - type: str
+ string: mike
+- type: seq
+ id: goodbye
+ help: Say good bye to someone
+ children:
+ - type: str
+ string: good
+ - type: str
+ string: bye
+ - type: or
+ id: name
+ help: Name of the person to greet
+ children:
+ - type: str
+ string: mary
+ - type: str
+ string: jessica
+EOF
+
+output=$(mktemp)
+match=1
+$path/build/parse-yaml -i $yaml -o $output || match=0
+if [ "$match" = "1" ]; then
+ cat $output
+ . $output
+ name=$(ec_parse_get_str $(ec_parse_find_first ec_node1 name) 0)
+ hello=$(ec_parse_get_str $(ec_parse_find_first ec_node1 hello) 0)
+
+ if [ "$hello" != "" ]; then
+ echo "$name says hello to you!"
+ else
+ echo "$name says good bye to you!"
+ fi
+else
+ echo "no match"
+fi
+rm $output
+rm $yaml