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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Martin Hentschel <info@cl-soft.de>
*
*/
using System.Collections.Generic;
using CCodeGeneration;
using System;
using System.IO;
namespace LwipSnmpCodeGeneration
{
public class MibCFile
{
#region Fields
private const string PreservedSectionMarker = "LWIP MIB generator - preserved section begin";
private const string PreservedSectionHeader =
"+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n" +
PreservedSectionMarker + "\n" +
"Code below is preserved on regeneration. Remove these comment lines to regenerate code.\n" +
"+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++";
private readonly List<CodeElement> includes = new List<CodeElement>();
private readonly List<CodeElement> defines = new List<CodeElement>();
private readonly List<CodeElement> declarations = new List<CodeElement>();
private readonly List<CodeElement> implementation = new List<CodeElement>();
private readonly List<CodeElement> preservedCode = new List<CodeElement>();
#endregion
public MibCFile()
{
}
#region Accessors
public List<CodeElement> Includes
{
get { return this.includes; }
}
public List<CodeElement> Defines
{
get { return this.defines; }
}
public List<CodeElement> Declarations
{
get { return this.declarations; }
}
public List<CodeElement> Implementation
{
get { return this.implementation; }
}
public List<CodeElement> PreservedCode
{
get { return this.preservedCode; }
}
#endregion
#region Methods
public void Save(CGenerator cGenerator)
{
CFile cFile = new CFile();
cFile.AddElement(new Comment("Generated by LwipMibCompiler"));
cFile.AddElement(EmptyLine.SingleLine);
cFile.AddElement(new PP_Include(LwipDefs.Incl_SnmpOpts));
CodeContainerBase e = cFile.AddElement(new PP_If(LwipDefs.Opt_SnmpEnabled)) as CodeContainerBase;
e.AddElement(EmptyLine.SingleLine);
// include header file
string file = cGenerator.FileName;
if (!String.IsNullOrWhiteSpace(file))
{
string ext = System.IO.Path.GetExtension(file);
string headerFile = !String.IsNullOrEmpty(ext) ? file.Substring(0, file.Length - ext.Length) : file;
headerFile += ".h";
e.AddElement(new PP_Include(headerFile));
}
// include common snmp files
e.AddElement(new PP_Include("lwip/apps/snmp.h"));
e.AddElement(new PP_Include("lwip/apps/snmp_core.h"));
e.AddElement(new PP_Include("lwip/apps/snmp_scalar.h"));
e.AddElement(new PP_Include("lwip/apps/snmp_table.h"));
if (this.includes.Count > 0)
{
e.AddElement(EmptyLine.SingleLine);
e.AddElements(this.includes);
}
if (this.defines.Count > 0)
{
e.AddElement(EmptyLine.SingleLine);
e.AddElements(this.defines);
}
if (this.declarations.Count > 0)
{
e.AddElement(EmptyLine.TwoLines);
e.AddElements(this.declarations);
}
if (this.implementation.Count > 0)
{
e.AddElement(EmptyLine.TwoLines);
e.AddElements(this.implementation);
}
if (this.preservedCode.Count > 0)
{
e.AddElement(EmptyLine.TwoLines);
e.AddElement(new Comment(PreservedSectionHeader));
e.AddElement(EmptyLine.SingleLine);
e.AddElements(this.preservedCode);
}
cFile.Save(cGenerator);
}
public static string GetPreservedCode(string file)
{
if (File.Exists(file))
{
using (StreamReader fileStream = new StreamReader(file))
{
while (!fileStream.EndOfStream)
{
string line = fileStream.ReadLine();
if (line == PreservedSectionMarker)
{
break;
}
}
if (!fileStream.EndOfStream)
{
// skip the rest of the comment + spacer line
fileStream.ReadLine(); // "Code below is preserved...
fileStream.ReadLine(); // "+++++++++++++++++++++++...
fileStream.ReadLine(); // */
fileStream.ReadLine(); //
string preservedCode = fileStream.ReadToEnd();
int lastEndif = preservedCode.LastIndexOf("#endif", StringComparison.Ordinal);
preservedCode = preservedCode.Remove(lastEndif);
return preservedCode;
}
}
}
return null;
}
#endregion
}
}
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