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with multiple tokens becomes the token with one less backslash. It is
permitted to redefine existing macros as well as new ones.
{include <string>}
Include text from another file into this one. You cannot use {include}
inside of another macro or in a macro argument.
{mod <number> <number>}
Modulo.
{version <number>}
Expands into nothing. The number must be zero, otherwise it is an error.
Future versions of Free Hero Mesh may change this.
It is possible to implement a tag system in this preprocessor, which makes
it Turing complete. For example:
{define "skip" {call \2}}
{define "1" {skip \1|"3"|"3"|"2"|"1"|"H"}}
{define "2" {skip \1|"3"|"3"|"1"}}
{define "3" {skip \1|"3"|"3"}}
{define "H" \1}
{call "2"|"1"|"1"}
Note: Macro names are entirely independent from token names.
=== Global definitions ===
These are the global definitions in the class definition file.
(Animate <limit>)
Set the limit for logical animations, from 1 to 255. The default is 32.
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with multiple tokens becomes the token with one less backslash. It is
permitted to redefine existing macros as well as new ones.
{include <string>}
Include text from another file into this one. You cannot use {include}
inside of another macro or in a macro argument.
{make <mode> <arg>}
Make a synthetic token; see the below section about synthetic tokens for
details. The second argument can be a number, or a direction or key name
which is treated as a number, or a string. In most cases, a number will
be converted to a string with its unsigned decimal representation.
{mod <number> <number>}
Modulo.
{version <number>}
Expands into nothing. The number must be zero, otherwise it is an error.
Future versions of Free Hero Mesh may change this.
It is possible to implement a tag system in this preprocessor, which makes
it Turing complete. For example:
{define "skip" {call \2}}
{define "1" {skip \1|"3"|"3"|"2"|"1"|"H"}}
{define "2" {skip \1|"3"|"3"|"1"}}
{define "3" {skip \1|"3"|"3"}}
{define "H" \1}
{call "2"|"1"|"1"}
Note: Macro names are entirely independent from token names.
=== Synthetic tokens ===
The possible modes of synthetic tokens are:
":" A label with the specified name.
"=:" Go to a label with a specified name.
",:" Subroutine call a label with a specified name.
"@" A global variable.
"=@" Write a global variable.
"%" A local variable.
"=%" Write a local variable.
"#" A user-defined message.
"$" A class.
"&" A user-defined function.
"^" A user flag (read self, or definition).
"=^" A user flag (write self).
",^" A user flag (read object).
"=,^" A user flag (write object).
"'" A key token; either by number or by name.
"D" A direction; only the low 4-bits are used.
"+" A number interpreted as decimal.
"=+" A number interpreted as binary.
",+" A number interpreted as hexadecimal.
"=,+" A number interpreted as octal.
"C" A string with a single character of the specified code.
",C" A string with a quiz button of the character with the code.
"A" The ASCII code of the first character of the string.
Note that as the argument, you can use {cat} to convert other tokens
to strings if needed.
=== Global definitions ===
These are the global definitions in the class definition file.
(Animate <limit>)
Set the limit for logical animations, from 1 to 255. The default is 32.
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