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by brian
clean slate |
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/* Init cclasses array from ctypes */
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#include <my_global.h> |
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#include <m_ctype.h> |
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#include <m_string.h> |
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#include "cclass.h" |
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static my_bool regex_inited=0; |
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void my_regex_init(CHARSET_INFO *cs) |
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{
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char buff[CCLASS_LAST][256]; |
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int count[CCLASS_LAST]; |
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uint i; |
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if (!regex_inited) |
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{
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regex_inited=1; |
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bzero((uchar*) &count,sizeof(count)); |
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for (i=1 ; i<= 255; i++) |
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{
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if (my_isalnum(cs,i)) |
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buff[CCLASS_ALNUM][count[CCLASS_ALNUM]++]=(char) i; |
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if (my_isalpha(cs,i)) |
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buff[CCLASS_ALPHA][count[CCLASS_ALPHA]++]=(char) i; |
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if (my_iscntrl(cs,i)) |
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buff[CCLASS_CNTRL][count[CCLASS_CNTRL]++]=(char) i; |
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if (my_isdigit(cs,i)) |
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buff[CCLASS_DIGIT][count[CCLASS_DIGIT]++]=(char) i; |
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if (my_isgraph(cs,i)) |
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buff[CCLASS_GRAPH][count[CCLASS_GRAPH]++]=(char) i; |
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if (my_islower(cs,i)) |
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buff[CCLASS_LOWER][count[CCLASS_LOWER]++]=(char) i; |
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if (my_isprint(cs,i)) |
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buff[CCLASS_PRINT][count[CCLASS_PRINT]++]=(char) i; |
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if (my_ispunct(cs,i)) |
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buff[CCLASS_PUNCT][count[CCLASS_PUNCT]++]=(char) i; |
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if (my_isspace(cs,i)) |
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buff[CCLASS_SPACE][count[CCLASS_SPACE]++]=(char) i; |
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if (my_isupper(cs,i)) |
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buff[CCLASS_UPPER][count[CCLASS_UPPER]++]=(char) i; |
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if (my_isxdigit(cs,i)) |
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buff[CCLASS_XDIGIT][count[CCLASS_XDIGIT]++]=(char) i; |
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}
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buff[CCLASS_BLANK][0]=' '; |
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buff[CCLASS_BLANK][1]='\t'; |
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count[CCLASS_BLANK]=2; |
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for (i=0; i < CCLASS_LAST ; i++) |
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{
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char *tmp=(char*) malloc(count[i]+1); |
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if (!tmp) |
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{
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/*
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This is very unlikely to happen as this function is called once
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at program startup
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*/
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fprintf(stderr, |
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"Fatal error: Can't allocate memory in regex_init\n"); |
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exit(1); |
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}
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memcpy(tmp,buff[i],count[i]*sizeof(char)); |
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tmp[count[i]]=0; |
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cclasses[i].chars=tmp; |
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}
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}
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return; |
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}
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void my_regex_end() |
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{
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if (regex_inited) |
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{
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int i; |
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for (i=0; i < CCLASS_LAST ; i++) |
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free((char*) cclasses[i].chars); |
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regex_inited=0; |
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}
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}
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