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| author | Joey Adams | 2010-06-14 06:29:58 +0000 |
|---|---|---|
| committer | Joey Adams | 2010-06-14 06:29:58 +0000 |
| commit | e8f4dc86cb87b38ee19b8574dadbbe6629f35ef0 (patch) | |
| tree | d6b73069951e7decfcd9d22a94d57686694426b1 /jsonpath.h | |
| parent | 042358fb35a690afdb97c12800b34af9515d15d9 (diff) | |
Implemented/tested parser for basic JSONPath(ish) patterns.
Diffstat (limited to 'jsonpath.h')
| -rw-r--r-- | jsonpath.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/jsonpath.h b/jsonpath.h new file mode 100644 index 0000000..4d19062 --- /dev/null +++ b/jsonpath.h @@ -0,0 +1,37 @@ +#ifndef JSONPATH_H +#define JSONPATH_H + +#include "json.h" + +#include "nodes/pg_list.h" + +typedef enum { + JP_ROOT, + JP_WILDCARD, + JP_INDEX_SUBSCRIPT, + JP_KEY_SUBSCRIPT +} jp_element_type; + +typedef struct { + jp_element_type type; + + union { + long index; + struct { + char *ptr; + size_t length; + } key; + } data; + + // If element was preceded by ".." in pattern + bool recursive_descent; +} jp_element; + +typedef List JSONPath; + +JSONPath *jp_parse(const char *pattern); +char *jp_show(JSONPath *jp); + +List *jp_match(JSONPath *jp, json_node *json); + +#endif |