| Server IP : 85.214.239.14 / Your IP : 18.217.118.156 Web Server : Apache/2.4.62 (Debian) System : Linux h2886529.stratoserver.net 4.9.0 #1 SMP Tue Jan 9 19:45:01 MSK 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.18 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : OFF Directory : /proc/2/task/2/root/proc/3/root/proc/3/root/usr/include/postgresql/9.6/server/regex/ |
Upload File : |
/*-------------------------------------------------------------------------
*
* regexport.h
* Declarations for exporting info about a regex's NFA (nondeterministic
* finite automaton)
*
* The functions declared here provide accessors to extract the NFA state
* graph and color character sets of a successfully-compiled regex.
*
* An NFA contains one or more states, numbered 0..N-1. There is an initial
* state, as well as a final state --- reaching the final state denotes
* successful matching of an input string. Each state except the final one
* has some out-arcs that lead to successor states, each arc being labeled
* with a color that represents one or more concrete character codes.
* (The colors of a state's out-arcs need not be distinct, since this is an
* NFA not a DFA.) There are also "pseudocolors" representing start/end of
* line and start/end of string. Colors are numbered 0..C-1, but note that
* color 0 is "white" (all unused characters) and can generally be ignored.
*
* Portions Copyright (c) 2013-2016, PostgreSQL Global Development Group
* Portions Copyright (c) 1998, 1999 Henry Spencer
*
* IDENTIFICATION
* src/include/regex/regexport.h
*
*-------------------------------------------------------------------------
*/
#ifndef _REGEXPORT_H_
#define _REGEXPORT_H_
#include "regex/regex.h"
/* information about one arc of a regex's NFA */
typedef struct
{
int co; /* label (character-set color) of arc */
int to; /* next state number */
} regex_arc_t;
/* Functions for gathering information about NFA states and arcs */
extern int pg_reg_getnumstates(const regex_t *regex);
extern int pg_reg_getinitialstate(const regex_t *regex);
extern int pg_reg_getfinalstate(const regex_t *regex);
extern int pg_reg_getnumoutarcs(const regex_t *regex, int st);
extern void pg_reg_getoutarcs(const regex_t *regex, int st,
regex_arc_t *arcs, int arcs_len);
/* Functions for gathering information about colors */
extern int pg_reg_getnumcolors(const regex_t *regex);
extern int pg_reg_colorisbegin(const regex_t *regex, int co);
extern int pg_reg_colorisend(const regex_t *regex, int co);
extern int pg_reg_getnumcharacters(const regex_t *regex, int co);
extern void pg_reg_getcharacters(const regex_t *regex, int co,
pg_wchar *chars, int chars_len);
#endif /* _REGEXPORT_H_ */