[英]How to use string template
I am trying to use ANTLR to create understand how grammar works.我正在尝试使用 ANTLR 来理解语法的工作原理。 I have started playing with ANTLR and created a simple addition program.我已经开始使用 ANTLR 并创建了一个简单的加法程序。 Below is my simple grammar.下面是我的简单语法。
grammar addition;
expr: NUMBER PLUS NUMBER;
NUMBER: [0-9]+
PLUS: '+';
SPACE
: ' ' {skip();};
This grammar works perfect for input like "1+1".这种语法非常适合像“1+1”这样的输入。 But what I am trying to do is to generate below C# code for input "1+1":但我想要做的是在 C# 代码下方生成输入“1+1”:
var a = 1;
var b = 1;
Console.WriteLine(1+1);
When I researched, I found that I can use string templates with ANTLR C#.当我研究时,我发现我可以将字符串模板与 ANTLR C# 一起使用。 I tried exploring them but didn't find much help.我尝试探索它们,但没有找到太多帮助。 The documentation is a little hard to understand.文档有点难以理解。 Can somebody please tell me or provide some study references through which I will be able to know how to use string templates with ANTLR.有人可以告诉我或提供一些学习参考资料,通过这些参考资料我将能够知道如何在 ANTLR 中使用字符串模板。
Add Package StringTemplate4 from nuget:从 nuget 添加 Package StringTemplate4:
Install-Package StringTemplate4 -Version 4.0.8
A Minimal example:一个最小的例子:
public string SumNumbers()
{
//Create string template and enclose variables between <..>
var template = @"
A template for sum (a,b):
a= <a>
b= <b>
Sum = <sum>
";
//Instantiate Template class
var strTemplate = new Template(template);
int a = 5;
int b = 6;
var sum = a + b;
//define variables used by template
strTemplate.Add("a", a);
strTemplate.Add("b", b);
strTemplate.Add("sum", sum);
//render the template
return strTemplate.Render();
}
output: output:
A template for sum (a,b): sum (a,b) 的模板:
a= 5 a= 5
b= 6 b = 6
Sum = 11总和 = 11
you can find a detailed documentation in using StringTemplat4 in project site :您可以在项目站点中找到使用 StringTemplat4 的详细文档:
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