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Text File  |  2000-06-30  |  128b  |  8 lines
  1.  
  2. /*
  3. ** Return "true" if c is alphabetic
  4. */
  5. isalpha(c) int c; {
  6.   return ((c<='z' && c>='a') || (c<='Z' && c>='A'));
  7.   }
  8.