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

README.md

@@ -1,11 +1,19 @@
 # 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.