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//
// BsdCTagsManager.cs
//
// Author:
// Levi Bard <levi@unity3d.com>
//
// Copyright (c) 2010 Levi Bard
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using System.Collections.Generic;
using MonoDevelop.Core;
using MonoDevelop.Core.Execution;
namespace CBinding.Parser
{
public class BsdCTagsManager: CTagsManager
{
#region implemented abstract members of CBinding.Parser.CTagsManager
protected override IEnumerable<string> GetTags (FileInformation fileInfo)
{
string tagFileName = Path.GetFileName (fileInfo.FileName) + ".tag";
string tagFullFileName = Path.Combine (SystemTagsDirectory, tagFileName);
string ctags_options = string.Format ("-dtx '{0}'", fileInfo.FileName);
string ctags_output = string.Empty;
if (!File.Exists (tagFullFileName) || File.GetLastWriteTimeUtc (tagFullFileName) < File.GetLastWriteTimeUtc (fileInfo.FileName)) {
ctags_output = GetOutputFromProcess (CTagsExecutable, ctags_options, Environment.CurrentDirectory);
File.WriteAllText (tagFullFileName, ctags_output);
}
return ctags_output.Split (newlines, StringSplitOptions.RemoveEmptyEntries);
}
static readonly char[] newlines = {'\r','\n'};
protected override IEnumerable<string> GetTags (MonoDevelop.Projects.Project project, string filename, IEnumerable<string> headers)
{
StringBuilder ctags_kinds = new StringBuilder ("-dtx");
ctags_kinds.AppendFormat (" '{0}'", filename);
foreach (string header in headers) {
ctags_kinds.AppendFormat (" '{0}'", header);
}
string output = GetOutputFromProcess (CTagsExecutable, ctags_kinds.ToString (), project.BaseDirectory);
if (output != null)
return output.Split (newlines, StringSplitOptions.RemoveEmptyEntries);
return null;
}
public override void FillFileInformation (FileInformation fileInfo)
{
IEnumerable<string> ctags_output = GetTags (fileInfo);
if (ctags_output == null) return;
foreach (string tagEntry in ctags_output) {
if (tagEntry.StartsWith ("!_")) continue;
Tag tag = ParseTag (tagEntry);
if (tag != null)
AddInfo (fileInfo, tag, tagEntry);
}
fileInfo.IsFilled = true;
}
// Format: symbol line file fulltext (there may not be any whitespace between symbol and line)
static readonly Regex tagExpression = new Regex (@"\s*(?<symbol>[^\s]+?)\s*(?<line>\d+)\s+(?<file>[^\s]+)\s+(?<raw>.*)", RegexOptions.Compiled);
public override Tag ParseTag (string tagEntry)
{
try {
Match tagMatch = tagExpression.Match (tagEntry);
if (tagMatch == null) return null;
TagKind kind = TagKind.Member;
string signature = tagMatch.Groups["raw"].Value;
int start = signature.IndexOf ('(');
int end = signature.LastIndexOf (')');
if (start >= 0 && end > start) {
// Attempt to parse out method parameter block
signature = signature.Substring (start, end - start + 1);
kind = TagKind.Function; // TODO: improve kind guessing
}
return new Tag (tagMatch.Groups["symbol"].Value,
tagMatch.Groups["file"].Value,
ulong.Parse (tagMatch.Groups["line"].Value)+1,
kind, AccessModifier.Public,
null, null, null, null, null, signature);
} catch (Exception ex) {
LoggingService.LogWarning (string.Format ("Error parsing tag {0}", tagEntry), ex);
}
return null;
}
#endregion
}
}
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