Validates a configuration file format by enforcing the number of times specific keys must appear.

ID: 1450

See: Project: Implementing a Strict Configuration File Validator 
				
					using uCalcSoftware;

var uc = new uCalc();
using (var validator = new uCalc.Transformer()) {
   // 1. Configure the transformer
   validator.DefaultRuleSet.StatementSensitive = false;
   validator.SkipOver(";{line}"); // Ignore comments

   // 2. Define rules with validation constraints
   var serverRule = validator.Pattern("'['Server']' {body}").SetMinimum(1).SetMaximum(1);
   serverRule.Description = "Server Section";

   var local_t = serverRule.LocalTransformer;
   var hostRule = local_t.Pattern("Host = {@Alpha}").SetMinimum(1).SetMaximum(1);
   hostRule.Description = "Host Key";

   var portRule = local_t.Pattern("Port = {@Number}").SetMinimum(1);
   portRule.Description = "Port Key";

   // --- Test Data ---
   var validConfig = "[Server]\nHost = db1\nPort = 1433";
   var invalidConfig = "Host = web1\nPort = 80"; // Missing [Server] section


   // --- Validate validConfig ---
   Console.WriteLine("--- Validating valid_config.ini ---");
   validator.SetText(validConfig).Find();
   Console.WriteLine($"  Server section check passed: {serverRule.Matches.Count() == 1}");
   Console.WriteLine($"  Host key check passed: {hostRule.Matches.Count() == 1}");
   Console.WriteLine($"  Port key check passed: {portRule.Matches.Count() >= 1}");
   Console.WriteLine("");

   // --- Validate invalidConfig ---
   Console.WriteLine("--- Validating invalid_config.ini ---");
   validator.SetText(invalidConfig).Find();
   Console.WriteLine($"  Server section check passed: {serverRule.Matches.Count() == 1}");
   // The host and port rules will have 0 matches because their parent rule (serverRule) failed.
   Console.WriteLine($"  Host key check passed: {hostRule.Matches.Count() == 1}");
   Console.WriteLine($"  Port key check passed: {portRule.Matches.Count() >= 1}");
}
				
			
--- Validating valid_config.ini ---
  Server section check passed: True
  Host key check passed: True
  Port key check passed: True

--- Validating invalid_config.ini ---
  Server section check passed: False
  Host key check passed: False
  Port key check passed: False
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					#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

#define tf(IsTrue) ((IsTrue) ? "True" : "False")

int main() {
   uCalc uc;
   {
      uCalc::Transformer validator;
      validator.Owned(); // Causes validator to be released when it goes out of scope
      // 1. Configure the transformer
      validator.DefaultRuleSet().StatementSensitive(false);
      validator.SkipOver(";{line}"); // Ignore comments

      // 2. Define rules with validation constraints
      auto serverRule = validator.Pattern("'['Server']' {body}").SetMinimum(1).SetMaximum(1);
      serverRule.Description("Server Section");

      auto local_t = serverRule.LocalTransformer();
      auto hostRule = local_t.Pattern("Host = {@Alpha}").SetMinimum(1).SetMaximum(1);
      hostRule.Description("Host Key");

      auto portRule = local_t.Pattern("Port = {@Number}").SetMinimum(1);
      portRule.Description("Port Key");

      // --- Test Data ---
      auto validConfig = "[Server]\nHost = db1\nPort = 1433";
      auto invalidConfig = "Host = web1\nPort = 80"; // Missing [Server] section


      // --- Validate validConfig ---
      cout << "--- Validating valid_config.ini ---" << endl;
      validator.SetText(validConfig).Find();
      cout << "  Server section check passed: " << tf(serverRule.Matches().Count() == 1) << endl;
      cout << "  Host key check passed: " << tf(hostRule.Matches().Count() == 1) << endl;
      cout << "  Port key check passed: " << tf(portRule.Matches().Count() >= 1) << endl;
      cout << "" << endl;

      // --- Validate invalidConfig ---
      cout << "--- Validating invalid_config.ini ---" << endl;
      validator.SetText(invalidConfig).Find();
      cout << "  Server section check passed: " << tf(serverRule.Matches().Count() == 1) << endl;
      // The host and port rules will have 0 matches because their parent rule (serverRule) failed.
      cout << "  Host key check passed: " << tf(hostRule.Matches().Count() == 1) << endl;
      cout << "  Port key check passed: " << tf(portRule.Matches().Count() >= 1) << endl;
   }
}
				
			
--- Validating valid_config.ini ---
  Server section check passed: True
  Host key check passed: True
  Port key check passed: True

--- Validating invalid_config.ini ---
  Server section check passed: False
  Host key check passed: False
  Port key check passed: False
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					Imports System
Imports uCalcSoftware
Public Module Program
   Public Sub Main()
      Dim uc As New uCalc()
      Using validator As New uCalc.Transformer()
         '// 1. Configure the transformer
         validator.DefaultRuleSet.StatementSensitive = false
         validator.SkipOver(";{line}") '// Ignore comments
         
         '// 2. Define rules with validation constraints
         Dim serverRule = validator.Pattern("'['Server']' {body}").SetMinimum(1).SetMaximum(1)
         serverRule.Description = "Server Section"
         
         Dim local_t = serverRule.LocalTransformer
         Dim hostRule = local_t.Pattern("Host = {@Alpha}").SetMinimum(1).SetMaximum(1)
         hostRule.Description = "Host Key"
         
         Dim portRule = local_t.Pattern("Port = {@Number}").SetMinimum(1)
         portRule.Description = "Port Key"
         
         '// --- Test Data ---
         
         Dim validConfig = "[Server]" & vbNewLine & "Host = db1" & vbNewLine & "Port = 1433"
         Dim invalidConfig = "Host = web1" & vbNewLine & "Port = 80" '// Missing [Server] section
         
         '// --- Validate validConfig ---
         Console.WriteLine("--- Validating valid_config.ini ---")
         validator.SetText(validConfig).Find()
         Console.WriteLine($"  Server section check passed: {serverRule.Matches.Count() = 1}")
         Console.WriteLine($"  Host key check passed: {hostRule.Matches.Count() = 1}")
         Console.WriteLine($"  Port key check passed: {portRule.Matches.Count() >= 1}")
         Console.WriteLine("")
         
         '// --- Validate invalidConfig ---
         Console.WriteLine("--- Validating invalid_config.ini ---")
         validator.SetText(invalidConfig).Find()
         Console.WriteLine($"  Server section check passed: {serverRule.Matches.Count() = 1}")
         '// The host and port rules will have 0 matches because their parent rule (serverRule) failed.
         Console.WriteLine($"  Host key check passed: {hostRule.Matches.Count() = 1}")
         Console.WriteLine($"  Port key check passed: {portRule.Matches.Count() >= 1}")
      End Using
   End Sub
End Module
				
			
--- Validating valid_config.ini ---
  Server section check passed: True
  Host key check passed: True
  Port key check passed: True

--- Validating invalid_config.ini ---
  Server section check passed: False
  Host key check passed: False
  Port key check passed: False
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