Add support for parsing assignments

Some JSON web APIs return a full JavaScript assignment instead of just
the data structure (and I'm looking at you, Tumblr). This is done in clear
violation of the grammar published in the RFC 4627, and it's evidently
done because most web developers are too lazy for doing a

  var foo = eval('(' + text ')');

and want everything defined for them. JsonParser will blissfully ignore
the left-hand part of the assignment but, in the interest of the developer
who cares, will record: 1. that the parsed statement was in fact an
assignment and 2. the name of the variable used.

The function json_parser_has_assignment() can be used to query both the
presence of an assignment and the variable name at the same time.

1 files changed, 5 insertions, 0 deletions

diff --git a/json-glib/json-parser.h b/json-glib/json-parser.h
index 71a17cb..37324a9 100644
--- a/json-glib/json-parser.h
+++ b/json-glib/json-parser.h
@@ -53,9 +53,12 @@ typedef enum {
 
 typedef enum {
   JSON_TOKEN_INVALID = G_TOKEN_LAST,
+
   JSON_TOKEN_TRUE,
   JSON_TOKEN_FALSE,
   JSON_TOKEN_NULL,
+  JSON_TOKEN_VAR,
+
   JSON_TOKEN_LAST
 } JsonTokenType;
 
@@ -141,6 +144,8 @@ JsonNode *  json_parser_get_root         (JsonParser   *parser);
 
 guint       json_parser_get_current_line (JsonParser   *parser);
 guint       json_parser_get_current_pos  (JsonParser   *parser);
+gboolean    json_parser_has_assignment   (JsonParser   *parser,
+                                          gchar       **variable_name);
 
 G_END_DECLS