Quake 3, and thus Urban Terror, uses 7-bit ASCII for text, including chat and radio messages. This limits the characters you can successfully use to those in the following table. Note that you can't use the semicolon ( ; ) or quote ( " ) in chat, as these characters have special meaning in the game code. As a substitute for double-quote marks, simply type two single-quotes ( ' ). You can use unicode characters in some clients, such as r00t's build, but keep in mind that users of the default client will not be able to see your messages; only other users of clients with unicode support will know what you're saying.
7-bit ASCII[]
Decimal | Octal | Hex | Binary | Value | Description |
---|---|---|---|---|---|
000 | 000 | 0x00 | 00000000 | NUL | (Null char.) |
001 | 001 | 0x01 | 00000001 | SOH | (Start of Header) |
002 | 002 | 0x02 | 00000010 | STX | (Start of Text) |
003 | 003 | 0x03 | 00000011 | ETX | (End of Text) |
004 | 004 | 0x04 | 00000100 | EOT | (End of Transmission) |
005 | 005 | 0x05 | 00000101 | ENQ | (Enquiry) |
006 | 006 | 0x06 | 00000110 | ACK | (Acknowledgment) |
007 | 007 | 0x07 | 00000111 | BEL | (Bell) |
008 | 010 | 0x08 | 00001000 | BS | (Backspace) |
009 | 011 | 0x09 | 00001001 | HT | (Horizontal Tab) |
010 | 012 | 0x0A | 00001010 | LF | (Line Feed) |
011 | 013 | 0x0B | 00001011 | VT | (Vertical Tab) |
012 | 014 | 0x0C | 00001100 | FF | (Form Feed) |
013 | 015 | 0x0D | 00001101 | CR | (Carriage Return) |
014 | 016 | 0x0E | 00001110 | SO | (Shift Out) |
015 | 017 | 0x0F | 00001111 | SI | (Shift In) |
016 | 020 | 0x10 | 00010000 | DLE | (Data Link Escape) |
017 | 021 | 0x11 | 00010001 | DC1 | (XON) (Device Control 1) |
018 | 022 | 0x12 | 00010010 | DC2 | (Device Control 2) |
019 | 023 | 0x13 | 00010011 | DC3 | (XOFF)(Device Control 3) |
020 | 024 | 0x14 | 00010100 | DC4 | (Device Control 4) |
021 | 025 | 0x15 | 00010101 | NAK | (Negative Acknowledgement) |
022 | 026 | 0x16 | 00010110 | SYN | (Synchronous Idle) |
023 | 027 | 0x17 | 00010111 | ETB | (End of Trans. Block) |
024 | 030 | 0x18 | 00011000 | CAN | (Cancel) |
025 | 031 | 0x19 | 00011001 | EM | (End of Medium) |
026 | 032 | 0x1A | 00011010 | SUB | (Substitute) |
027 | 033 | 0x1B | 00011011 | ESC | (Escape) |
028 | 034 | 0x1C | 00011100 | FS | (File Separator) |
029 | 035 | 0x1D | 00011101 | GS | (Group Separator) |
030 | 036 | 0x1E | 00011110 | RS | (Request to Send)(Record Separator) |
031 | 037 | 0x1F | 00011111 | US | (Unit Separator) |
032 | 040 | 0x20 | 00100000 | SP | (Space) |
033 | 041 | 0x21 | 00100001 | ! | (exclamation mark) |
034 | 042 | 0x22 | 00100010 | " | (double quote) |
035 | 043 | 0x23 | 00100011 | # | (number sign) |
036 | 044 | 0x24 | 00100100 | $ | (dollar sign) |
037 | 045 | 0x25 | 00100101 | % | (percent) |
038 | 046 | 0x26 | 00100110 | & | (ampersand) |
039 | 047 | 0x27 | 00100111 | '' | (single quote) |
040 | 050 | 0x28 | 00101000 | ( | (left/opening parenthesis) |
041 | 051 | 0x29 | 00101001 | ) | (right/closing parenthesis) |
042 | 052 | 0x2A | 00101010 | * | (asterisk) |
043 | 053 | 0x2B | 00101011 | + | (plus) |
044 | 054 | 0x2C | 00101100 | , | (comma) |
045 | 055 | 0x2D | 00101101 | - | (minus or dash) |
046 | 056 | 0x2E | 00101110 | . | (dot) |
047 | 057 | 0x2F | 00101111 | / | (forward slash) |
048 | 060 | 0x30 | 00110000 | 0 | |
049 | 061 | 0x31 | 00110001 | 1 | |
050 | 062 | 0x32 | 00110010 | 2 | |
051 | 063 | 0x33 | 00110011 | 3 | |
052 | 064 | 0x34 | 00110100 | 4 | |
053 | 065 | 0x35 | 00110101 | 5 | |
054 | 066 | 0x36 | 00110110 | 6 | |
055 | 067 | 0x37 | 00110111 | 7 | |
056 | 070 | 0x38 | 00111000 | 8 | |
057 | 071 | 0x39 | 00111001 | 9 | |
058 | 072 | 0x3A | 00111010 | : | (colon) |
059 | 073 | 0x3B | 00111011 | ; | (semi-colon) |
060 | 074 | 0x3C | 00111100 | < | (less than) |
061 | 075 | 0x3D | 00111101 | = | (equal sign) |
062 | 076 | 0x3E | 00111110 | > | (greater than) |
063 | 077 | 0x3F | 00111111 | ? | (question mark) |
064 | 100 | 0x40 | 01000000 | @ | (AT symbol) |
065 | 101 | 0x41 | 01000001 | A | |
066 | 102 | 0x42 | 01000010 | B | |
067 | 103 | 0x43 | 01000011 | C | |
068 | 104 | 0x44 | 01000100 | D | |
069 | 105 | 0x45 | 01000101 | E | |
070 | 106 | 0x46 | 01000110 | F | |
071 | 107 | 0x47 | 01000111 | G | |
072 | 110 | 0x48 | 01001000 | H | |
073 | 111 | 0x49 | 01001001 | I | |
074 | 112 | 0x4A | 01001010 | J | |
075 | 113 | 0x4B | 01001011 | K | |
076 | 114 | 0x4C | 01001100 | L | |
077 | 115 | 0x4D | 01001101 | M | |
078 | 116 | 0x4E | 01001110 | N | |
079 | 117 | 0x4F | 01001111 | O | |
080 | 120 | 0x50 | 01010000 | P | |
081 | 121 | 0x51 | 01010001 | Q | |
082 | 122 | 0x52 | 01010010 | R | |
083 | 123 | 0x53 | 01010011 | S | |
084 | 124 | 0x54 | 01010100 | T | |
085 | 125 | 0x55 | 01010101 | U | |
086 | 126 | 0x56 | 01010110 | V | |
087 | 127 | 0x57 | 01010111 | W | |
088 | 130 | 0x58 | 01011000 | X | |
089 | 131 | 0x59 | 01011001 | Y | |
090 | 132 | 0x5A | 01011010 | Z | |
091 | 133 | 0x5B | 01011011 | [ | (left/opening bracket) |
092 | 134 | 0x5C | 01011100 | \ | (back slash) |
093 | 135 | 0x5D | 01011101 | ] | (right/closing bracket) |
094 | 136 | 0x5E | 01011110 | ^ | (caret/circumflex) |
095 | 137 | 0x5F | 01011111 | _ | (underscore) |
096 | 140 | 0x60 | 01100000 | ` | (grave accent) |
097 | 141 | 0x61 | 01100001 | a | |
098 | 142 | 0x62 | 01100010 | b | |
099 | 143 | 0x63 | 01100011 | c | |
100 | 144 | 0x64 | 01100100 | d | |
101 | 145 | 0x65 | 01100101 | e | |
102 | 146 | 0x66 | 01100110 | f | |
103 | 147 | 0x67 | 01100111 | g | |
104 | 150 | 0x68 | 01101000 | h | |
105 | 151 | 0x69 | 01101001 | i | |
106 | 152 | 0x6A | 01101010 | j | |
107 | 153 | 0x6B | 01101011 | k | |
108 | 154 | 0x6C | 01101100 | l | |
109 | 155 | 0x6D | 01101101 | m | |
110 | 156 | 0x6E | 01101110 | n | |
111 | 157 | 0x6F | 01101111 | o | |
112 | 160 | 0x70 | 01110000 | p | |
113 | 161 | 0x71 | 01110001 | q | |
114 | 162 | 0x72 | 01110010 | r | |
115 | 163 | 0x73 | 01110011 | s | |
116 | 164 | 0x74 | 01110100 | t | |
117 | 165 | 0x75 | 01110101 | u | |
118 | 166 | 0x76 | 01110110 | v | |
119 | 167 | 0x77 | 01110111 | w | |
120 | 170 | 0x78 | 01111000 | x | |
121 | 171 | 0x79 | 01111001 | y | |
122 | 172 | 0x7A | 01111010 | z | |
123 | 173 | 0x7B | 01111011 | { | (left/opening brace) |
124 | 174 | 0x7C | 01111100 | | | (vertical bar) |
125 | 175 | 0x7D | 01111101 | } | (right/closing brace) |
126 | 176 | 0x7E | 01111110 | ~ | (tilde) |
127 | 177 | 0x7F | 01111111 | DEL | (delete) |
About 7-bit ASCII[]
From early in its development, ASCII was intended to be just one of several national variants of an international character code standard, ultimately published as ISO/IEC 646 (1972), which would share most characters in common but assign other locally useful characters to several code points reserved for "national use." However, the four years that elapsed between the publication of ASCII-1963 and ISO's first acceptance of an international recommendation during 1967 caused ASCII's choices for the national use characters to seem to be de facto standards for the world, causing confusion and incompatibility once other countries did begin to make their own assignments to these code points.
ISO/IEC 646, like ASCII, was a 7-bit character set. It did not make any additional codes available, so the same code points encoded different characters in different countries. Escape codes were defined to indicate which national variant applied to a piece of text, but they were rarely used, so it was often impossible to know what variant to work with and therefore which character a code represented, and in general text-processing systems could cope with only one variant anyway.
Because the bracket and brace characters of ASCII were assigned to "national use" code points that were used for accented letters in other national variants of ISO/IEC 646, a German, French, or Swedish, etc. programmer using their national variant of ISO/IEC 646, rather than ASCII, had to write, and thus read, something such as
ä aÄiÜ='Ön'; ü
instead of
{ a[i]='\n'; }
C trigraphs were created to solve this problem for ANSI C, although their late introduction and inconsistent implementation in compilers limited their use. Many programmers kept their computers on US-ASCII, so plain-text in Swedish, German etc. (for example, in e-mail or Usenet) contained "{, }" and similar variants in the middle of words, something those programmers got used to.
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