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#ifndef PRISM_INTERNAL_REGEXP_H
#define PRISM_INTERNAL_REGEXP_H
#include "prism/ast.h"
#include "prism/parser.h"
/*
* Accumulation state for named capture groups found during regexp parsing.
* The caller initializes this with the call node and passes it to
* pm_regexp_parse. The regexp parser populates match and names as groups
* are found.
*/
typedef struct {
/* The call node wrapping the regular expression node (for =~). */
pm_call_node_t *call;
/* The match write node being built, or NULL if no captures found yet. */
pm_match_write_node_t *match;
/* The list of capture names found so far (for deduplication). */
pm_constant_id_list_t names;
} pm_regexp_name_data_t;
/*
* Callback invoked by pm_regexp_parse() for each named capture group found.
*/
typedef void (*pm_regexp_name_callback_t)(pm_parser_t *parser, const pm_string_t *name, bool shared, pm_regexp_name_data_t *data);
/*
* Parse a regular expression, validate its encoding, and optionally extract
* named capture groups. Returns the encoding flags to set on the node.
*/
PRISM_EXPORTED_FUNCTION pm_node_flags_t pm_regexp_parse(pm_parser_t *parser, pm_regular_expression_node_t *node, pm_regexp_name_callback_t name_callback, pm_regexp_name_data_t *name_data);
/*
* Parse an interpolated regular expression for named capture groups only.
* No encoding validation is performed.
*/
void pm_regexp_parse_named_captures(pm_parser_t *parser, const uint8_t *source, size_t size, bool shared, bool extended_mode, pm_regexp_name_callback_t name_callback, pm_regexp_name_data_t *name_data);
#endif
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