/* tre-parse.c - Regexp parser definitions This software is released under a BSD-style license. See the file LICENSE for details and copyright. */ #ifndef TRE_PARSE_H #define TRE_PARSE_H 1 #ifdef __LIBC__ #include <xlocale_private.h> #else /* !__LIBC__ */ #include <xlocale.h> #endif /* !__LIBC__ */ /* Parse context. */ typedef struct { /* Memory allocator. The AST is allocated using this. */ tre_mem_t mem; /* Stack used for keeping track of regexp syntax. */ tre_stack_t *stack; /* The parse result. */ tre_ast_node_t *result; /* The regexp to parse and its length. */ const tre_char_t *re; /* The first character of the entire regexp. */ const tre_char_t *re_start; /* The first character after the end of the regexp. */ const tre_char_t *re_end; /* The current locale */ locale_t loc; int len; /* Current submatch ID. */ int submatch_id; /* Current invisible submatch ID. */ int submatch_id_invisible; /* Current position (number of literal). */ int position; /* The highest back reference or -1 if none seen so far. */ int max_backref; /* Number of tags that need reordering. */ int num_reorder_tags; /* This flag is set if the regexp uses approximate matching. */ int have_approx; /* Compilation flags. */ int cflags; /* If this flag is set the top-level submatch is not captured. */ int nofirstsub; /* The currently set approximate matching parameters. */ int params[TRE_PARAM_LAST]; } tre_parse_ctx_t; /* Parses a wide character regexp pattern into a syntax tree. This parser handles both syntaxes (BRE and ERE), including the TRE extensions. */ __private_extern__ reg_errcode_t tre_parse(tre_parse_ctx_t *ctx); #endif /* TRE_PARSE_H */ /* EOF */