Miscellany

intmain ( void ){  char          string[20] =  "ah ah pouet prout" ;  regex_t *     preg = ( regex_t * ) malloc ( sizeof ( regex_t ) ) ;  size_t        nmatch ;  regmatch_t    pmatch[50] ;  int           i, j ;  if ( regcomp ( preg, "\\w{2} pouet", REG_EXTENDED ) )    printf ( "error regcomp\n" ) ;  if ( regexec ( preg, string, nmatch, pmatch, 0 ) )    printf ( "error regexec\n" ) ;  for ( i=0; i<50; i++ ){    if ( (pmatch[i]).rm_so == 0 && (pmatch[i]).rm_eo == 0 ){      i = 50 ;      break ;    }    for ( j=(pmatch[i]).rm_so; j<(pmatch[i]).rm_eo; j++ )      putc ( string[j], stdout ) ;    putc ( '\n', stdout ) ;  }  return 0 ;}