yaml: set node attributes

[protos/libecoli.git] / examples / parse-yaml / parse-yaml.sh

diff --git a/examples/parse-yaml/parse-yaml.sh b/examples/parse-yaml/parse-yaml.sh
new file mode 100644 (file)
index 0000000..1b7d029
--- /dev/null
+++ b/examples/parse-yaml/parse-yaml.sh
@@ -0,0 +1,140 @@
+#!/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