void my_regex_init(CHARSET_INFO *cs, my_regex_stack_check_t func)
{
char buff[CCLASS_LAST][256];
int count[CCLASS_LAST];
uint i;
if (!regex_inited)
{
regex_inited=1;
my_regex_enough_mem_in_stack= func;
bzero((uchar*) &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_init\n");
exit(1);
}
memcpy(tmp,buff[i],count[i]*sizeof(char));
tmp[count[i]]=0;
cclasses[i].chars=tmp;
}
}
return;
}
int main()
{
char givenCharacter;
char option;
do
{
/* Read a character from user */
printf("Enter a character: ");
scanf("\n%c", &givenCharacter);
/* Test for int my_isalpha(int var) function by passing givenCharacter */
my_isalpha(givenCharacter) ? printf("my_isalpha: Success\n"):printf("my_isalpha: Failed\n");
/* Test for int my_isalnum(int var) function by passing givenCharacter */
my_isalnum(givenCharacter) ? printf("my_isalnum: Success\n"):printf("my_isalnum: Failed\n");
/* Test for int my_isxdigit(int var) function by passing givenCharacter */
my_isdigit(givenCharacter) ? printf("my_isdigit: Success\n"):printf("my_isdigit: Failed\n");
/* Test for int my_iscntrl(int var) function by passing givenCharacter */
my_iscntrl(givenCharacter) ? printf("my_iscntrl: Success\n"):printf("my_iscntrl: Failed\n");
/* Prompt for Continue option */
printf("Continue (y/n): ");
scanf("\n%c", &option);
if ( option == 'y' )
{
continue;
}
else
{
break;
}
} while (1);
return 0;
}
