s |char*|nextchar
s |regnode*|dumpuntil |regnode *start|regnode *node \
|regnode *last|SV* sv|I32 l
-s |void |put_byte |SV* sv|int c
s |void |scan_commit |struct scan_data_t *data
-s |void |cl_anything |struct regnode_charclass_class *cl
-s |int |cl_is_anything |struct regnode_charclass_class *cl
-s |void |cl_init |struct regnode_charclass_class *cl
-s |void |cl_init_zero |struct regnode_charclass_class *cl
-s |void |cl_and |struct regnode_charclass_class *cl \
- |struct regnode_charclass_class *and_with
-s |void |cl_or |struct regnode_charclass_class *cl \
- |struct regnode_charclass_class *or_with
s |I32 |study_chunk |regnode **scanp|I32 *deltap \
|regnode *last|struct scan_data_t *data \
|U32 flags