clyne/interpreter
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Merge branch 'master' of http://code.bitgloo.com/clyne/interpreter

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Clyne Sullivan 2018-02-06 08:48:39 -05:00
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# interpreter
This project aims to provide a very minimal scripting language for embedded systems. Many other languages already exist, such as Lua, Tcl, or BASIC; however, most implementations require certain system calls like a read() and write(), expecting a filesystem. This interpreter aims to be as independent as possible: parsing script from strings at a time, having minimal built-in functions (so the user can define their own prints and such), and only requiring a few library functions.
This project aims to provide a very minimal scripting language for embedded systems. Many other languages already exist, such as Lua, Tcl, or BASIC; however, most implementations require certain system calls like a read() and write(), as they expect a filesystem. This interpreter aims to be as independent and portable as possible: parsing script from strings one at a time, having minimal built-in functions (so the user can define their own prints and such), and only requiring a few standard library functions.
To use this program with your own device, only one function is truly neede: malloc, and calloc (though may switch to only malloc).
To use this program with your own device, you need some malloc/free implementation, and string functions like those in string.h, atoi, and snprintf. Some of these functions may become coded in so that a standard library isn't required.
Current features:
Only a few commands are built in to the interpreter:
* set - set variables
* func/end - define functions
* jmp - jump to line
Other features:
* function/variable defining in c
* variable definition
* function calling with variable expansion
* expression solving
Soon:
* conditionals
* error messages
This project is still in heavy development, so don't expect much. To include it in your own project, just link in parser.o and use the header files.