1 #!/usr/local/bin/perl -w 2 3 use strict; 4 5 my ($i, @arr); 6 7 # Set up an array with the type of ASCII characters 8 # Each set bit represents a character property. 9 10 # RFC2253 character properties 11 my $RFC2253_ESC = 1; # Character escaped with \ 12 my $ESC_CTRL = 2; # Escaped control character 13 # These are used with RFC1779 quoting using " 14 my $NOESC_QUOTE = 8; # Not escaped if quoted 15 my $PSTRING_CHAR = 0x10; # Valid PrintableString character 16 my $RFC2253_FIRST_ESC = 0x20; # Escaped with \ if first character 17 my $RFC2253_LAST_ESC = 0x40; # Escaped with \ if last character 18 19 for($i = 0; $i < 128; $i++) { 20 # Set the RFC2253 escape characters (control) 21 $arr[$i] = 0; 22 if(($i < 32) || ($i > 126)) { 23 $arr[$i] |= $ESC_CTRL; 24 } 25 26 # Some PrintableString characters 27 if( ( ( $i >= ord("a")) && ( $i <= ord("z")) ) 28 || ( ( $i >= ord("A")) && ( $i <= ord("Z")) ) 29 || ( ( $i >= ord("0")) && ( $i <= ord("9")) ) ) { 30 $arr[$i] |= $PSTRING_CHAR; 31 } 32 } 33 34 # Now setup the rest 35 36 # Remaining RFC2253 escaped characters 37 38 $arr[ord(" ")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC | $RFC2253_LAST_ESC; 39 $arr[ord("#")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC; 40 41 $arr[ord(",")] |= $NOESC_QUOTE | $RFC2253_ESC; 42 $arr[ord("+")] |= $NOESC_QUOTE | $RFC2253_ESC; 43 $arr[ord("\"")] |= $RFC2253_ESC; 44 $arr[ord("\\")] |= $RFC2253_ESC; 45 $arr[ord("<")] |= $NOESC_QUOTE | $RFC2253_ESC; 46 $arr[ord(">")] |= $NOESC_QUOTE | $RFC2253_ESC; 47 $arr[ord(";")] |= $NOESC_QUOTE | $RFC2253_ESC; 48 49 # Remaining PrintableString characters 50 51 $arr[ord(" ")] |= $PSTRING_CHAR; 52 $arr[ord("'")] |= $PSTRING_CHAR; 53 $arr[ord("(")] |= $PSTRING_CHAR; 54 $arr[ord(")")] |= $PSTRING_CHAR; 55 $arr[ord("+")] |= $PSTRING_CHAR; 56 $arr[ord(",")] |= $PSTRING_CHAR; 57 $arr[ord("-")] |= $PSTRING_CHAR; 58 $arr[ord(".")] |= $PSTRING_CHAR; 59 $arr[ord("/")] |= $PSTRING_CHAR; 60 $arr[ord(":")] |= $PSTRING_CHAR; 61 $arr[ord("=")] |= $PSTRING_CHAR; 62 $arr[ord("?")] |= $PSTRING_CHAR; 63 64 # Now generate the C code 65 66 print <<EOF; 67 /* Auto generated with chartype.pl script. 68 * Mask of various character properties 69 */ 70 71 static unsigned char char_type[] = { 72 EOF 73 74 for($i = 0; $i < 128; $i++) { 75 print("\n") if($i && (($i % 16) == 0)); 76 printf("%2d", $arr[$i]); 77 print(",") if ($i != 127); 78 } 79 print("\n};\n\n"); 80 81
