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reginit.c
Package: mysql-4.1.16-win-src.zip [view]
Upload User: romrleung
Upload Date: 2022-05-23
Package Size: 18897k
Code Size: 2k
Category:
MySQL
Development Platform:
Visual C++
- /* Init cclasses array from ctypes */
- #include <my_global.h>
- #include <m_ctype.h>
- #include <m_string.h>
- #include "cclass.h"
- static bool regex_inited=0;
- void my_regex_init(CHARSET_INFO *cs)
- {
- char buff[CCLASS_LAST][256];
- int count[CCLASS_LAST];
- uint i;
- if (!regex_inited)
- {
- regex_inited=1;
- bzero((gptr) &count,sizeof(count));
- for (i=1 ; i<= 255; i++)
- {
- if (my_isalnum(cs,i))
- buff[CCLASS_ALNUM][count[CCLASS_ALNUM]++]=(char) i;
- if (my_isalpha(cs,i))
- buff[CCLASS_ALPHA][count[CCLASS_ALPHA]++]=(char) i;
- if (my_iscntrl(cs,i))
- buff[CCLASS_CNTRL][count[CCLASS_CNTRL]++]=(char) i;
- if (my_isdigit(cs,i))
- buff[CCLASS_DIGIT][count[CCLASS_DIGIT]++]=(char) i;
- if (my_isgraph(cs,i))
- buff[CCLASS_GRAPH][count[CCLASS_GRAPH]++]=(char) i;
- if (my_islower(cs,i))
- buff[CCLASS_LOWER][count[CCLASS_LOWER]++]=(char) i;
- if (my_isprint(cs,i))
- buff[CCLASS_PRINT][count[CCLASS_PRINT]++]=(char) i;
- if (my_ispunct(cs,i))
- buff[CCLASS_PUNCT][count[CCLASS_PUNCT]++]=(char) i;
- if (my_isspace(cs,i))
- buff[CCLASS_SPACE][count[CCLASS_SPACE]++]=(char) i;
- if (my_isupper(cs,i))
- buff[CCLASS_UPPER][count[CCLASS_UPPER]++]=(char) i;
- if (my_isxdigit(cs,i))
- buff[CCLASS_XDIGIT][count[CCLASS_XDIGIT]++]=(char) i;
- }
- buff[CCLASS_BLANK][0]=' ';
- buff[CCLASS_BLANK][1]='t';
- count[CCLASS_BLANK]=2;
- for (i=0; i < CCLASS_LAST ; i++)
- {
- char *tmp=(char*) malloc(count[i]+1);
- if (!tmp)
- {
- /*
- This is very unlikely to happen as this function is called once
- at program startup
- */
- fprintf(stderr,
- "Fatal error: Can't allocate memory in regex_initn");
- exit(1);
- }
- memcpy(tmp,buff[i],count[i]*sizeof(char));
- tmp[count[i]]=0;
- cclasses[i].chars=tmp;
- }
- }
- return;
- }
- void my_regex_end()
- {
- if (regex_inited)
- {
- int i;
- for (i=0; i < CCLASS_LAST ; i++)
- free((char*) cclasses[i].chars);
- regex_inited=0;
- }
- }