A simple example showing how to extract a value from a nested configuration block.

ID: 939

See: LocalTransformer = [Transformer] 
				
					using uCalcSoftware;

var uc = new uCalc();
var t = uc.NewTransformer();
t.Text = "Config { setting = 123; }";

// 1. Define the parent rule to capture the content inside the braces.
var parentRule = t.Pattern("Config '{' {body} '}'").SetStatementSensitive(false);

// 2. Get the local transformer for the parent rule.
var local_t = parentRule.LocalTransformer;

// 3. Define a rule that operates ONLY on the text captured by '{body}'.
local_t.FromTo("setting = {val}", "Found Value: {val}");

// 4. Perform the transformation.
// The local rule will run on the text " setting = 123; ".
t.Transform();

Console.WriteLine(t.Text);
				
			
Config { Found Value: 123; }
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					#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

int main() {
   uCalc uc;
   auto t = uc.NewTransformer();
   t.Text("Config { setting = 123; }");

   // 1. Define the parent rule to capture the content inside the braces.
   auto parentRule = t.Pattern("Config '{' {body} '}'").SetStatementSensitive(false);

   // 2. Get the local transformer for the parent rule.
   auto local_t = parentRule.LocalTransformer();

   // 3. Define a rule that operates ONLY on the text captured by '{body}'.
   local_t.FromTo("setting = {val}", "Found Value: {val}");

   // 4. Perform the transformation.
   // The local rule will run on the text " setting = 123; ".
   t.Transform();

   cout << t.Text() << endl;
}
				
			
Config { Found Value: 123; }
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					Imports System
Imports uCalcSoftware
Public Module Program
   Public Sub Main()
      Dim uc As New uCalc()
      Dim t = uc.NewTransformer()
      t.Text = "Config { setting = 123; }"
      
      '// 1. Define the parent rule to capture the content inside the braces.
      Dim parentRule = t.Pattern("Config '{' {body} '}'").SetStatementSensitive(false)
      
      '// 2. Get the local transformer for the parent rule.
      Dim local_t = parentRule.LocalTransformer
      
      '// 3. Define a rule that operates ONLY on the text captured by '{body}'.
      local_t.FromTo("setting = {val}", "Found Value: {val}")
      
      '// 4. Perform the transformation.
      '// The local rule will run on the text " setting = 123; ".
      t.Transform()
      
      Console.WriteLine(t.Text)
   End Sub
End Module
				
			
Config { Found Value: 123; }
Explore 600+ other examples