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Nasal-Interpreter
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Update README.md

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@ -36,7 +36,7 @@ And the flow chart of lexer is here:
# Parser # Parser
In __version 2.0__ ## In __version 2.0__
```javascript ```javascript
(var a,b,c)=(1,2,3); (var a,b,c)=(1,2,3);
var (r,g,b)=color; var (r,g,b)=color;
@ -49,16 +49,28 @@ These two types of statements are both definition_expr.
``` ```
This type of statement is multi_assignment. This type of statement is multi_assignment.
__And to check if an expr in '(' ')' is multi_scalar or multi_id__ And to check if an expr in '(' ')' is multi_scalar or multi_id.
__i used bool nasal_parse::check_multi_scalar() and bool nasal_parse::check_multi_assignment()__ i used bool nasal_parse::check_multi_scalar() and bool nasal_parse::check_multi_assignment().
## In __version 3.0__
I refactored parser and make it easier to maintain.
the EBNF is also refactored.
# Abstract Syntax Tree # Abstract Syntax Tree
In __version 1.2__ the ast has been completed. In __version 1.2__ the ast has been completed.
In __version 3.0__ the ast is refactored and is now easier to read and maintain.
# Version 2.0 # Version 2.0
a completed ast-interpreter with unfinished lib functions. a completed ast-interpreter with unfinished lib functions.
a new byte code interpreter is in progress(version 3.0). # Version 3.0
ast-interpreter uses new techniques so it can run codes more efficiently.
byte-code-interpreter is in progress(i need a lot of time to learn that :( ).