April 01, 1999
Regular Expressions
/* matchhere: search for re at beginning of text */
int matchhere(char *re, char *text)
{
if (re[0] == '\0')
return 1;
if (re[1] == '*')
return matchstar(re[0], re+2, text);
if (re[0] == '$' && re[1] == '\0')
return *text == '\0';
if (*text!='\0' && (re[0]=='.' || re[0]==*text))
return matchhere(re+1, text+1);
return 0;
}
Example 2: The recursive function matchhere does most of the work.
Copyright © 1999, Dr. Dobb's Journal 
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