一个基于XML词法分析实现的微型的解释器, 仅 233 行代码,

实现了:

变量定义(var),

赋值(set),

条件判断(if),

循环(for,while),

算术运算(+,-,*,/,%),

函数(Func,RETURN,CALL),

输入(READLINE),

输出(PRINT,PRINTLN),

An tiny interpreter,based on XML analysis, only 233 lines of code,

Implement features:

Variable definition (var);

Assignment (set);

Conditional judgment (if);

Loop (for, while);

Arithmetic operations (+, -, *, /,%);

Functions (Func, RETURN, CALL);

Input (READLINE);

Output (PRINT, PRINTLN);

示例/Example

var ticks = Environment.TickCount;
new Interpreter().Eval(@"
<PROGRAM>
    <PRINT V='please input your name:' />
    <VAR str='guest' />
    <READLINE str='' />
    <PRINT V='hello!' />
    <PRINTLN V='str' />

	<FOR_LT i='0' TO='3'>
        <IF_GE i='2'>
            <PRINTLN V='have a good day!' />
        </IF_GE>
        <PRINT V='welcome!' />
		<PRINTLN V='str' />
	</FOR_LT>
    <PRINT V='i=' />
    <PRINTLN V='i' />
    <WHILE_GT i='0'>
        <SUB i='1' />
        <PRINT V='i--=' />
        <PRINTLN V='i' />
    </WHILE_GT>
    <FUNC add='FLOAT' x='FLOAT' y='FLOAT'>
        <SET add='x' />
        <ADD add='y' />
    </FUNC>
    <VAR f='0' />
    <CALL f='add' x='123' y='456' />
    <PRINT V='call func add(123,456)=' />
    <PRINT V='123+456=' />
    <PRINTLN V='f' />
</PROGRAM>
");
ticks = Environment.TickCount - ticks;
Console.WriteLine("done. elapse:{0} ms", ticks);
Console.ReadLine();

kernel64 / XML-base-interpreter

一个基于XML词法分析实现的微型的解释器, 仅 233 行代码,

实现了:

变量定义(var),

赋值(set),

条件判断(if),

循环(for,while),

算术运算(+,-,*,/,%),

函数(Func,RETURN,CALL),

输入(READLINE),

输出(PRINT,PRINTLN),

An tiny interpreter,based on XML analysis, only 233 lines of code,

Implement features:

Variable definition (var);

Assignment (set);

Conditional judgment (if);

Loop (for, while);

Arithmetic operations (+, -, *, /,%);

Functions (Func, RETURN, CALL);

Input (READLINE);

Output (PRINT, PRINTLN);

示例/Example

简介

发行版

贡献者

近期动态

kernel64 / XML-base-interpreter .gitee-modal { width: 500px !important; }

一个基于XML词法分析实现的微型的解释器, 仅 233 行代码,

实现了:

变量定义(var),

赋值(set),

条件判断(if),

循环(for,while),

算术运算(+,-,*,/,%),

函数(Func,RETURN,CALL),

输入(READLINE),

输出(PRINT,PRINTLN),

An tiny interpreter,based on XML analysis, only 233 lines of code,

Implement features:

Variable definition (var);

Assignment (set);

Conditional judgment (if);

Loop (for, while);

Arithmetic operations (+, -, *, /,%);

Functions (Func, RETURN, CALL);

Input (READLINE);

Output (PRINT, PRINTLN);

示例/Example

简介

发行版

贡献者

近期动态

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kernel64 / XML-base-interpreter