strpat.c

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/* --------------------------------------------------------------------
       FUNCTION
         strpat
 
       PURPOSE  
         Search for string patterns, using template characters,
         for numbers and/or alpha characters.
 
       VERSION and UPDATES
         1.0    DEC  95  David G. Brandon
                Original Version
 *--------------------------------------------------------------------- */
 
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <dirent.h>
#include <unistd.h>
#include <string.h>
#include <math.h>
#include <sys/stat.h>
/*
#include <fcntl.h>
*/
 
/* *********************** */
/* pattern search function */
/* *********************** */
 
strpat(char buffer[], char token[] , int numtemp, int chartemp )
{
 
int token_len, buffer_len, cutoff_len;
int i,j,k;
 
  token_len  = strlen(token);
  buffer_len = strlen(buffer);
  cutoff_len = buffer_len - token_len;
 
  i = 0;
  while ( i < cutoff_len +1 )
  {
    j = 0;
    k = i;
 
    while ( j < token_len )
    {
      if (  token[j] == numtemp  )
      {
        if ( buffer[k] != '-' )
        {
          if ( buffer[k] != '.' )
          {
            if ( !isdigit(buffer[k]) )
            {
              if (  token[j] != buffer[k]  )
                break;
            }
          }
        }
      }
      else if (  token[j] == chartemp  )
      {
        if ( !isalpha(buffer[k]) )
        {
          if (  token[j] != buffer[k]  )
            break;
        }
 
      }
      else if (  token[j] != buffer[k]  )
        break;
 
      j++;
      k++;
 
      if ( j == token_len )
          return i; 
    }   
    i++;
  }
  return -1;
}