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-rw-r--r--include/treebnf/treebnf.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/include/treebnf/treebnf.h b/include/treebnf/treebnf.h
index c10f115..1a8db27 100644
--- a/include/treebnf/treebnf.h
+++ b/include/treebnf/treebnf.h
@@ -24,6 +24,11 @@ extern "C" {
#define TBNF_USAGE 0x01
#define TBNF_ERROR 0x02
+/* token scanner state ops */
+#define TBNF_STATE_POP (-1)
+#define TBNF_STATE_KEEP ( 0)
+#define TBNF_STATE_PUSH (+1)
+
/* driver flags */
#define TBNF_DRIVER_XFLAG(x) ((uint64_t)(x) << 32)
@@ -51,6 +56,39 @@ enum tbnf_custom_error {
TBNF_ERR_IMAGE_SIZE_ZERO,
};
+/* token api structures */
+struct tbnf_token;
+struct tbnf_scan_tbl;
+struct tbnf_scan_ctx;
+
+struct tbnf_token {
+ int tok_type;
+ int tok_len;
+ int tok_off;
+ int tok_any;
+};
+
+struct tbnf_scan_tbl {
+ int (*tok_scan_fn)(const struct tbnf_scan_ctx *);
+ int tok_state_op;
+ int tok_state_next;
+};
+
+struct tbnf_scan_ctx {
+ const char * tok_scan_base;
+ const char * tok_scan_mark;
+ const char * tok_scan_cap;
+ int tok_scan_type;
+ int tok_scan_state;
+ int tok_scan_nents;
+ int tok_scan_ntbls;
+ struct tbnf_scan_tbl ** tok_scan_tbls;
+};
+
+
+
+
+
struct tbnf_raw_input {
void * map_addr;
size_t map_size;