[457] | 1 | /*
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| 2 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without modification,
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| 6 | * are permitted provided that the following conditions are met:
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| 7 | *
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| 8 | * 1. Redistributions of source code must retain the above copyright notice,
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| 9 | * this list of conditions and the following disclaimer.
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| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 11 | * this list of conditions and the following disclaimer in the documentation
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| 12 | * and/or other materials provided with the distribution.
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| 13 | * 3. The name of the author may not be used to endorse or promote products
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| 14 | * derived from this software without specific prior written permission.
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| 15 | *
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| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 19 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 21 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 24 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 25 | * OF SUCH DAMAGE.
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| 26 | *
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| 27 | * This file is part of the lwIP TCP/IP stack.
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| 28 | *
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| 29 | * Author: Martin Hentschel <info@cl-soft.de>
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| 30 | *
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| 31 | */
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| 32 |
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| 33 | using System.Collections.Generic;
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| 34 | using CCodeGeneration;
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| 35 | using System;
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| 36 | using System.IO;
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| 37 |
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| 38 | namespace LwipSnmpCodeGeneration
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| 39 | {
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| 40 | public class MibCFile
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| 41 | {
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| 42 | #region Fields
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| 43 |
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| 44 | private const string PreservedSectionMarker = "LWIP MIB generator - preserved section begin";
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| 45 | private const string PreservedSectionHeader =
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| 46 | "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++\n" +
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| 47 | PreservedSectionMarker + "\n" +
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| 48 | "Code below is preserved on regeneration. Remove these comment lines to regenerate code.\n" +
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| 49 | "+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++";
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| 50 |
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| 51 | private readonly List<CodeElement> includes = new List<CodeElement>();
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| 52 | private readonly List<CodeElement> defines = new List<CodeElement>();
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| 53 | private readonly List<CodeElement> declarations = new List<CodeElement>();
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| 54 | private readonly List<CodeElement> implementation = new List<CodeElement>();
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| 55 | private readonly List<CodeElement> preservedCode = new List<CodeElement>();
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| 56 |
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| 57 | #endregion
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| 58 |
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| 59 | public MibCFile()
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| 60 | {
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| 61 | }
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| 62 |
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| 63 | #region Accessors
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| 64 |
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| 65 | public List<CodeElement> Includes
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| 66 | {
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| 67 | get { return this.includes; }
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| 68 | }
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| 69 |
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| 70 | public List<CodeElement> Defines
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| 71 | {
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| 72 | get { return this.defines; }
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| 73 | }
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| 74 |
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| 75 | public List<CodeElement> Declarations
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| 76 | {
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| 77 | get { return this.declarations; }
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| 78 | }
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| 79 |
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| 80 | public List<CodeElement> Implementation
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| 81 | {
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| 82 | get { return this.implementation; }
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| 83 | }
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| 84 |
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| 85 | public List<CodeElement> PreservedCode
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| 86 | {
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| 87 | get { return this.preservedCode; }
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| 88 | }
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| 89 |
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| 90 | #endregion
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| 91 |
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| 92 | #region Methods
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| 93 |
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| 94 | public void Save(CGenerator cGenerator)
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| 95 | {
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| 96 | CFile cFile = new CFile();
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| 97 |
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| 98 | cFile.AddElement(new Comment("Generated by LwipMibCompiler"));
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| 99 | cFile.AddElement(EmptyLine.SingleLine);
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| 100 |
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| 101 | cFile.AddElement(new PP_Include(LwipDefs.Incl_SnmpOpts));
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| 102 | CodeContainerBase e = cFile.AddElement(new PP_If(LwipDefs.Opt_SnmpEnabled)) as CodeContainerBase;
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| 103 | e.AddElement(EmptyLine.SingleLine);
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| 104 |
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| 105 | // include header file
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| 106 | string file = cGenerator.FileName;
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| 107 | if (!String.IsNullOrWhiteSpace(file))
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| 108 | {
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| 109 | string ext = System.IO.Path.GetExtension(file);
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| 110 |
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| 111 | string headerFile = !String.IsNullOrEmpty(ext) ? file.Substring(0, file.Length - ext.Length) : file;
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| 112 | headerFile += ".h";
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| 113 |
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| 114 | e.AddElement(new PP_Include(headerFile));
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| 115 | }
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| 116 |
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| 117 | // include common snmp files
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| 118 | e.AddElement(new PP_Include("lwip/apps/snmp.h"));
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| 119 | e.AddElement(new PP_Include("lwip/apps/snmp_core.h"));
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| 120 | e.AddElement(new PP_Include("lwip/apps/snmp_scalar.h"));
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| 121 | e.AddElement(new PP_Include("lwip/apps/snmp_table.h"));
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| 122 |
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| 123 | if (this.includes.Count > 0)
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| 124 | {
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| 125 | e.AddElement(EmptyLine.SingleLine);
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| 126 | e.AddElements(this.includes);
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| 127 | }
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| 128 |
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| 129 | if (this.defines.Count > 0)
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| 130 | {
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| 131 | e.AddElement(EmptyLine.SingleLine);
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| 132 | e.AddElements(this.defines);
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| 133 | }
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| 134 |
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| 135 | if (this.declarations.Count > 0)
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| 136 | {
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| 137 | e.AddElement(EmptyLine.TwoLines);
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| 138 | e.AddElements(this.declarations);
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| 139 | }
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| 140 |
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| 141 | if (this.implementation.Count > 0)
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| 142 | {
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| 143 | e.AddElement(EmptyLine.TwoLines);
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| 144 | e.AddElements(this.implementation);
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| 145 | }
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| 146 |
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| 147 | if (this.preservedCode.Count > 0)
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| 148 | {
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| 149 | e.AddElement(EmptyLine.TwoLines);
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| 150 | e.AddElement(new Comment(PreservedSectionHeader));
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| 151 | e.AddElement(EmptyLine.SingleLine);
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| 152 | e.AddElements(this.preservedCode);
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| 153 | }
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| 154 |
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| 155 | cFile.Save(cGenerator);
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| 156 | }
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| 157 |
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| 158 | public static string GetPreservedCode(string file)
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| 159 | {
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| 160 | if (File.Exists(file))
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| 161 | {
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| 162 | using (StreamReader fileStream = new StreamReader(file))
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| 163 | {
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| 164 | while (!fileStream.EndOfStream)
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| 165 | {
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| 166 | string line = fileStream.ReadLine();
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| 167 | if (line == PreservedSectionMarker)
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| 168 | {
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| 169 | break;
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| 170 | }
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| 171 | }
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| 172 |
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| 173 | if (!fileStream.EndOfStream)
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| 174 | {
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| 175 | // skip the rest of the comment + spacer line
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| 176 | fileStream.ReadLine(); // "Code below is preserved...
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| 177 | fileStream.ReadLine(); // "+++++++++++++++++++++++...
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| 178 | fileStream.ReadLine(); // */
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| 179 | fileStream.ReadLine(); //
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| 180 |
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| 181 | string preservedCode = fileStream.ReadToEnd();
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| 182 |
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| 183 | int lastEndif = preservedCode.LastIndexOf("#endif", StringComparison.Ordinal);
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| 184 | preservedCode = preservedCode.Remove(lastEndif);
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| 185 |
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| 186 | return preservedCode;
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| 187 | }
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| 188 | }
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| 189 | }
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| 190 |
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| 191 | return null;
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| 192 | }
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| 193 |
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| 194 | #endregion
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| 195 | }
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| 196 | }
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