[issue #27] Fix issue handling multi-level lookups (e.g. 'json foo.bar')

CHANGES.md

@@ -7,7 +7,7 @@ installed to be able to test/compare new vs. old behaviour.
 
 ## json 3.0.2 (not yet released)
 
-(nothing yet)
+- [issue #27] Fix issue handling multi-level lookups (e.g. 'json foo.bar').
 
 
 ## json 3.0.1

lib/jsontool.js

@@ -780,7 +780,7 @@ function main(argv) {
             var lookup = lookups[i];
             var value = lookupDatum(datum, lookup);
             if (value !== undefined) {
-              row[lookup] = value;
+              row[lookup.join('.')] = value;
             }
           }
           table.push(row);

test/lookups/cmd

@@ -0,0 +1,19 @@
+JSON=../../lib/jsontool.js
+
+echo '{"name":"trent", "age":38}' | $JSON name
+echo '{"name":"trent", "age":38}' | $JSON name age
+
+echo ''
+echo '{"name":"trent", "age":38}' | $JSON name missing
+
+echo ''
+echo '[{"name":"trent", "age":38}, {"name":"ewan", "age":4}]' | $JSON -a name
+echo '[{"name":"trent", "age":38}, {"name":"ewan", "age":4}]' | $JSON -a name age
+
+echo ''
+echo '{"error":{"code":42,"message":"answer"}}' | $JSON error.code
+echo '{"error":{"code":42,"message":"answer"}}' | $JSON error.code error.message
+
+echo ''
+echo '[{"error":{"code":42,"message":"answer"}}]' | $JSON -a error.code
+echo '[{"error":{"code":42,"message":"answer"}}]' | $JSON -a error.code error.message

test/lookups/expected.stdout

@@ -0,0 +1,17 @@
+trent
+trent
+38
+
+trent
+
+trent
+ewan
+trent 38
+ewan 4
+
+42
+42
+answer
+
+42
+42 answer