tfon

This is a bitmap font parsing / conversion library. It supports a few font formats:

.tfon | ✔️ | ✔️ | .ifnt | ✔️ | ✔️ | .ifntx | ✔️ | ❌ |

.tfon Format

Any text editor can be used to create fonts in this format. There are two parts to the file: a header and a list of characters.

The header contains 4 key/value pairs:

• font_name: Name of font (up to 64 characters)
• font_number: Integer number, between 1 and 255
• char_spacing: Horizontal pixel spacing between characters
• line_spacing: Vertical pixel spacing between lines

font_name: Example font
font_number: 6
char_spacing: 1
line_spacing: 3

The character list can have between 1 and 255 values. Each character has a ch definition and a pixel grid:

• ch: Character number, between 1 and 255, followed by its symbol
• Pixel grid is a rectangular section of . (off) / @ (on) of the character bitmap. All characters in a font must have the same height.

ch: 52 4
...@.
..@@.
.@.@.
@..@.
@@@@@
...@.
...@.

Symbols (ASCII)

X | 0X | 1X | 2X | 3X | 4X | 5X | 6X | 7X ----|------|------|------|------|------|------|------|----- 0 | NUL | DLE | SP | 0 | @ | P | ` | p 1 | SOH | DC1 | ! | 1 | A | Q | a | q 2 | STX | DC2 | " | 2 | B | R | b | r 3 | ETX | DC3 | # | 3 | C | S | c | s 4 | EOT | DC4 | $ | 4 | D | T | d | t 5 | ENQ | NAK | % | 5 | E | U | e | u 6 | ACK | SYN | & | 6 | F | V | f | v 7 | BEL | ETB | ' | 7 | G | W | g | w 8 | BS | CAN | ( | 8 | H | X | h | x 9 | HT | EM | ) | 9 | I | Y | i | y A | LF | SUB | * | : | J | Z | j | z B | VT | ESC | + | ; | K | [ | k | { C | FF | FS | , | < | L | \ | l | | D | CR | GS | - | = | M | ] | m | } E | SO | RS | . | > | N | ^ | n | ~ F | SI | US | / | ? | O | _ | o | DEL

Symbols (Latin-1)

X | 8X | 9X | AX | BX | CX | DX | EX | 7X ----|------|------|------|------|------|------|------|----- 0 | PAD | DCS | NBSP | ° | À | Ð | à | ð 1 | HOP | PU1 | ¡ | ± | Á | Ñ | á | ñ 2 | BPH | PU2 | ¢ | ² | Â | Ò | â | ò 3 | NBH | STS | £ | ³ | Ã | Ó | ã | ó 4 | IND | CCH | ¤ | ´ | Ä | Ô | ä | ô 5 | NEL | MW | ¥ | µ | Å | Õ | å | õ 6 | SSA | SPA | ¦ | ¶ | Æ | Ö | æ | ö 7 | ESA | EPA | § | · | Ç | × | ç | ÷ 8 | HTS | SOS | ¨ | ¸ | È | Ø | è | ø 9 | HTJ | SGCI | © | ¹ | É | Ù | é | ù A | LTS | SCI | ª | º | Ê | Ú | ê | ú B | PLD | CSI | « | » | Ë | Û | ë | û C | PLU | ST | ¬ | ¼ | Ì | Ü | ì | ü D | RI | OSC | SHY | ½ | Í | Ý | í | ý E | SS2 | PM | ® | ¾ | Î | Þ | î | þ F | SS3 | APC | ¯ | ¿ | Ï | ß | ï | ÿ