Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 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 | |