stringop.h

用来文本分类的

#ifndef aaaSTRING_OPERATIONSaaa
#define aaaSTRING_OPERATIONSaaa
#include <string.h>
#include <ctype.h>

class StringOP {
  public:
       /* convert str into upper case text */
        static char *ToUpper(char *str)
       {
           for (unsigned int i=0; i<strlen(str); i++)
           {
      	      if ( (unsigned char)str[i]>=0x80 )
	      { i++; continue; }
	      str[i]=toupper(str[i]);
	   }
	   return str;
       }
       /* convert str into lower case text */
	static char *ToLower(char *str)
	{
	   for (unsigned int i=0; i<strlen(str); i++)
	   {
	     if ( (unsigned char)str[i]>=0x80 )
	     { i++; continue; }
	     str[i]=tolower(str[i]);
	   }
	   return str;
	}
        /* non-destructive strtok version, str: orginal text,
	 ** delim: deliminator, tokens: string to hold the current tokens
   	 *  return the advanced source pointer */
	static char *Strtok(char *str,char *delim,char *tokens) 
	{
	    while (*str) {
               if (strchr(delim,*str)) { str++; break; }
	       *(tokens++)=(*(str++));
	    }
	    *tokens='\0';
	    return str;
	}
};

#endif