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using RazorEngine;
using RazorEngine.Configuration;
using RazorEngine.Templating;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
namespace Tango.CodeGeneration
{
/// <summary>
/// Contains several code generation helper methods.
/// </summary>
public static class Helper
{
static Helper()
{
var config = new TemplateServiceConfiguration { Debug = true, ReferenceResolver = new CustomResolver() };
Engine.Razor = RazorEngineService.Create(config);
}
/// <summary>
/// Gets a code template by the code object type.
/// </summary>
/// <param name="type">The type.</param>
/// <returns></returns>
public static String GetTemplate(Type type)
{
return GetTemplate(type.Name);
}
/// <summary>
/// Gets a code template by name.
/// </summary>
/// <param name="name">The name.</param>
/// <returns></returns>
public static String GetTemplate(String name)
{
var assembly = Assembly.GetAssembly(typeof(Helper));
var resourceName = typeof(Helper).Namespace + ".Templates." + name + ".cshtml";
using (Stream stream = assembly.GetManifestResourceStream(resourceName))
{
using (StreamReader reader = new StreamReader(stream))
{
return reader.ReadToEnd();
}
}
}
/// <summary>
/// Parses the template using Razor Engine.
/// </summary>
/// <param name="template">The template.</param>
/// <param name="model">The model.</param>
/// <returns></returns>
public static String ParseTemplate(String template, object model)
{
return Engine.Razor.RunCompile(template, Guid.NewGuid().ToString(), model.GetType(), model).Replace("<div>", "").Replace("</div>", "");
}
/// <summary>
/// Parses the specified text.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="model">The model.</param>
/// <returns></returns>
public static String Parse(String text,object model)
{
return Engine.Razor.RunCompile(text, Guid.NewGuid().ToString(), model.GetType(), model);
}
/// <summary>
/// Indents the c sharp code.
/// </summary>
/// <param name="code">The code.</param>
/// <returns></returns>
public static string IndentCSharpCode(string code)
{
const string INDENT_STEP = " ";
if (string.IsNullOrWhiteSpace(code))
{
return code;
}
var result = new StringBuilder();
var indent = string.Empty;
var lineContent = false;
var stringDefinition = false;
for (var i = 0; i < code.Length; i++)
{
var ch = code[i];
if (ch == '"' && !stringDefinition)
{
result.Append(ch);
stringDefinition = true;
continue;
}
if (ch == '"' && stringDefinition)
{
result.Append(ch);
stringDefinition = false;
continue;
}
if (stringDefinition)
{
result.Append(ch);
continue;
}
if (ch == '{' && !stringDefinition)
{
if (lineContent)
{
result.AppendLine();
}
result.Append(indent).Append("{");
if (lineContent)
{
result.AppendLine();
}
indent += INDENT_STEP;
lineContent = false;
continue;
}
if (ch == '}' && !stringDefinition)
{
if (indent.Length != 0)
{
indent = indent.Substring(0, indent.Length - INDENT_STEP.Length);
}
if (lineContent)
{
result.AppendLine();
}
result.Append(indent).Append("}");
if (lineContent)
{
result.AppendLine();
}
lineContent = false;
continue;
}
if (ch == '\r')
{
continue;
}
if ((ch == ' ' || ch == '\t') && !lineContent)
{
continue;
}
if (ch == '\n')
{
lineContent = false;
result.AppendLine();
continue;
}
if (!lineContent)
{
result.Append(indent);
lineContent = true;
}
result.Append(ch);
}
return result.ToString();
}
}
}
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