EVOLUTION-MANAGER

Edit File: tre.h

/* tre.h - TRE public API definitions This software is released under a BSD-style license. See the file LICENSE for details and copyright. */ #ifndef TRE_H #define TRE_H 1 #include "tre-config.h" #ifdef HAVE_SYS_TYPES_H #include <sys/types.h> #endif /* HAVE_SYS_TYPES_H */ #ifdef HAVE_LIBUTF8_H #include <libutf8.h> #endif /* HAVE_LIBUTF8_H */ #ifdef TRE_USE_SYSTEM_REGEX_H /* Include the system regex.h to make TRE ABI compatible with the system regex. */ #include TRE_SYSTEM_REGEX_H_PATH #define tre_regcomp regcomp #define tre_regexec regexec #define tre_regerror regerror #define tre_regfree regfree #endif /* TRE_USE_SYSTEM_REGEX_H */ #ifdef __cplusplus extern "C" { #endif #ifdef TRE_USE_SYSTEM_REGEX_H #ifndef REG_OK #define REG_OK 0 #endif /* !REG_OK */ #ifndef HAVE_REG_ERRCODE_T typedef int reg_errcode_t; #endif /* !HAVE_REG_ERRCODE_T */ #if !defined(REG_NOSPEC) && !defined(REG_LITERAL) #define REG_LITERAL 0x1000 #endif /* Extra tre_regcomp() flags. */ #ifndef REG_BASIC #define REG_BASIC 0 #endif /* !REG_BASIC */ #define REG_RIGHT_ASSOC (REG_LITERAL << 1) #define REG_UNGREEDY (REG_RIGHT_ASSOC << 1) /* Extra tre_regexec() flags. */ #define REG_APPROX_MATCHER 0x1000 #define REG_BACKTRACKING_MATCHER (REG_APPROX_MATCHER << 1) #else /* !TRE_USE_SYSTEM_REGEX_H */ /* If the we're not using system regex.h, we need to define the structs and enums ourselves. */ typedef int regoff_t; typedef struct { size_t re_nsub; /* Number of parenthesized subexpressions. */ void *value; /* For internal use only. */ } regex_t; typedef struct { regoff_t rm_so; regoff_t rm_eo; } regmatch_t; typedef enum { REG_OK = 0, /* No error. */ /* POSIX tre_regcomp() return error codes. (In the order listed in the standard.) */ REG_NOMATCH, /* No match. */ REG_BADPAT, /* Invalid regexp. */ REG_ECOLLATE, /* Unknown collating element. */ REG_ECTYPE, /* Unknown character class name. */ REG_EESCAPE, /* Trailing backslash. */ REG_ESUBREG, /* Invalid back reference. */ REG_EBRACK, /* "[]" imbalance */ REG_EPAREN, /* "\(\)" or "()" imbalance */ REG_EBRACE, /* "\{\}" or "{}" imbalance */ REG_BADBR, /* Invalid content of {} */ REG_ERANGE, /* Invalid use of range operator */ REG_ESPACE, /* Out of memory. */ REG_BADRPT /* Invalid use of repetition operators. */ } reg_errcode_t; /* POSIX tre_regcomp() flags. */ #define REG_EXTENDED 1 #define REG_ICASE (REG_EXTENDED << 1) #define REG_NEWLINE (REG_ICASE << 1) #define REG_NOSUB (REG_NEWLINE << 1) /* Extra tre_regcomp() flags. */ #define REG_BASIC 0 #define REG_LITERAL (REG_NOSUB << 1) #define REG_RIGHT_ASSOC (REG_LITERAL << 1) #define REG_UNGREEDY (REG_RIGHT_ASSOC << 1) #define REG_USEBYTES (REG_UNGREEDY << 1) /* POSIX tre_regexec() flags. */ #define REG_NOTBOL 1 #define REG_NOTEOL (REG_NOTBOL << 1) /* Extra tre_regexec() flags. */ #define REG_APPROX_MATCHER (REG_NOTEOL << 1) #define REG_BACKTRACKING_MATCHER (REG_APPROX_MATCHER << 1) #endif /* !TRE_USE_SYSTEM_REGEX_H */ /* REG_NOSPEC and REG_LITERAL mean the same thing. */ #if defined(REG_LITERAL) && !defined(REG_NOSPEC) #define REG_NOSPEC REG_LITERAL #elif defined(REG_NOSPEC) && !defined(REG_LITERAL) #define REG_LITERAL REG_NOSPEC #endif /* defined(REG_NOSPEC) */ /* The maximum number of iterations in a bound expression. */ #undef RE_DUP_MAX #define RE_DUP_MAX 255 /* The POSIX.2 regexp functions */ extern int tre_regcomp(regex_t *preg, const char *regex, int cflags); extern int tre_regexec(const regex_t *preg, const char *string, size_t nmatch, regmatch_t pmatch[], int eflags); extern int tre_regcompb(regex_t *preg, const char *regex, int cflags); extern int tre_regexecb(const regex_t *preg, const char *string, size_t nmatch, regmatch_t pmatch[], int eflags); extern size_t tre_regerror(int errcode, const regex_t *preg, char *errbuf, size_t errbuf_size); extern void tre_regfree(regex_t *preg); #ifdef TRE_WCHAR #ifdef HAVE_WCHAR_H #include <wchar.h> #endif /* HAVE_WCHAR_H */ /* Wide character versions (not in POSIX.2). */ extern int tre_regwcomp(regex_t *preg, const wchar_t *regex, int cflags); extern int tre_regwexec(const regex_t *preg, const wchar_t *string, size_t nmatch, regmatch_t pmatch[], int eflags); #endif /* TRE_WCHAR */ /* Versions with a maximum length argument and therefore the capability to handle null characters in the middle of the strings (not in POSIX.2). */ extern int tre_regncomp(regex_t *preg, const char *regex, size_t len, int cflags); extern int tre_regnexec(const regex_t *preg, const char *string, size_t len, size_t nmatch, regmatch_t pmatch[], int eflags); /* regn*b versions take byte literally as 8-bit values */ extern int tre_regncompb(regex_t *preg, const char *regex, size_t n, int cflags); extern int tre_regnexecb(const regex_t *preg, const char *str, size_t len, size_t nmatch, regmatch_t pmatch[], int eflags); #ifdef TRE_WCHAR extern int tre_regwncomp(regex_t *preg, const wchar_t *regex, size_t len, int cflags); extern int tre_regwnexec(const regex_t *preg, const wchar_t *string, size_t len, size_t nmatch, regmatch_t pmatch[], int eflags); #endif /* TRE_WCHAR */ #ifdef TRE_APPROX /* Approximate matching parameter struct. */ typedef struct { int cost_ins; /* Default cost of an inserted character. */ int cost_del; /* Default cost of a deleted character. */ int cost_subst; /* Default cost of a substituted character. */ int max_cost; /* Maximum allowed cost of a match. */ int max_ins; /* Maximum allowed number of inserts. */ int max_del; /* Maximum allowed number of deletes. */ int max_subst; /* Maximum allowed number of substitutes. */ int max_err; /* Maximum allowed number of errors total. */ } regaparams_t; /* Approximate matching result struct. */ typedef struct { size_t nmatch; /* Length of pmatch[] array. */ regmatch_t *pmatch; /* Submatch data. */ int cost; /* Cost of the match. */ int num_ins; /* Number of inserts in the match. */ int num_del; /* Number of deletes in the match. */ int num_subst; /* Number of substitutes in the match. */ } regamatch_t; /* Approximate matching functions. */ extern int tre_regaexec(const regex_t *preg, const char *string, regamatch_t *match, regaparams_t params, int eflags); extern int tre_reganexec(const regex_t *preg, const char *string, size_t len, regamatch_t *match, regaparams_t params, int eflags); extern int tre_regaexecb(const regex_t *preg, const char *string, regamatch_t *match, regaparams_t params, int eflags); #ifdef TRE_WCHAR /* Wide character approximate matching. */ extern int tre_regawexec(const regex_t *preg, const wchar_t *string, regamatch_t *match, regaparams_t params, int eflags); extern int tre_regawnexec(const regex_t *preg, const wchar_t *string, size_t len, regamatch_t *match, regaparams_t params, int eflags); #endif /* TRE_WCHAR */ /* Sets the parameters to default values. */ extern void tre_regaparams_default(regaparams_t *params); #endif /* TRE_APPROX */ #ifdef TRE_WCHAR typedef wchar_t tre_char_t; #else /* !TRE_WCHAR */ typedef unsigned char tre_char_t; #endif /* !TRE_WCHAR */ typedef struct { int (*get_next_char)(tre_char_t *c, unsigned int *pos_add, void *context); void (*rewind)(size_t pos, void *context); int (*compare)(size_t pos1, size_t pos2, size_t len, void *context); void *context; } tre_str_source; extern int tre_reguexec(const regex_t *preg, const tre_str_source *string, size_t nmatch, regmatch_t pmatch[], int eflags); /* Returns the version string. The returned string is static. */ extern char * tre_version(void); /* Returns the value for a config parameter. The type to which `result' must point to depends of the value of `query', see documentation for more details. */ extern int tre_config(int query, void *result); enum { TRE_CONFIG_APPROX, TRE_CONFIG_WCHAR, TRE_CONFIG_MULTIBYTE, TRE_CONFIG_SYSTEM_ABI, TRE_CONFIG_VERSION }; /* Returns 1 if the compiled pattern has back references, 0 if not. */ extern int tre_have_backrefs(const regex_t *preg); /* Returns 1 if the compiled pattern uses approximate matching features, 0 if not. */ extern int tre_have_approx(const regex_t *preg); #ifdef __cplusplus } #endif #endif /* TRE_H */ /* EOF */