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millfork/docs/lang/text.md
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[< back to index](../doc_index.md)
# Text encodings ans escape sequences
### Text encoding list
* `default` default console encoding (can be omitted)
* `scr` default screencodes
(usually the same as `default`, a notable exception are the Commodore computers)
* `ascii` standard ASCII
* `pet` or `petscii` PETSCII (ASCII-like character set used by Commodore machines from VIC-20 onward)
* `origpet` or `origpetscii` old PETSCII (Commodore PET with original ROMs)
* `oldpet` or `oldpetscii` old PETSCII (Commodore PET with newer ROMs)
* `cbmscr` or `petscr` Commodore screencodes
* `apple2` Apple II charset ($A0$CF)
* `bbc` BBC Micro character set
* `sinclair` ZX Spectrum character set
* `jis` or `jisx` JIS X 0201
* `iso_de`, `iso_no`, `iso_se`, `iso_yu` various variants of ISO/IEC-646
* `iso_dk`, `iso_fi` aliases for `iso_no` and `iso_se` respectively
* `atascii` or `atari` ATASCII as seen on Atari 8-bit computers
* `atasciiscr` or `atariscr` screencodes used by Atari 8-bit computers
When programming for Commodore,
use `pet` for strings you're printing using standard I/O routines
and `petscr` for strings you're copying to screen memory directly.
### Escape sequences
##### Available everywhere
* `{q}` double quote symbol
* `{apos}` apostrophe/single quote
* `{x00}``{xff}` a character of the given hexadecimal value
##### Available only in some encodings
* `{n}` new line
* `{b}` backspace
* `{lbrace}`, `{rbrace}` opening and closing curly brace (only in encodings that support braces)
* `{up}`, `{down}`, `{left}`, `{right}` control codes for moving the cursor
* `{white}`, `{black}`, `{red}`, `{green}`, `{blue}`, `{cyan}`, `{yellow}`, `{purple}`
control codes for changing the text color
* `{bgwhite}`, `{bgblack}`, `{bgred}`, `{bggreen}`, `{bgblue}`, `{bgcyan}`, `{bgyellow}`, `{bgpurple}`
control codes for changing the text background color
* `{reverse}`, `{reverseoff}` inverted mode on/off
##### Escape sequence availability
Encoding | new line | braces | backspace | cursor movement | text colour, reverse | background colour
--|--|--|--|--|--|--
`pet` | yes | no | no | yes | yes | no
`petscr` | no | no | no | no | no | no
`sinclair` | yes | yes | no | yes | yes | yes
`ascii`, `iso_*` | yes | yes | yes | no | no | no
`apple2` | no | yes | no | no | no | no
`atascii` | yes | no | yes | yes | no | no
`atasciiscr` | no | no | no | no | no | no
all the rest | yes | yes | no | no | no | no