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(Cyberworks): generalized archive name parsing.

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This commit is contained in:
morkt 2017-01-06 05:11:45 +04:00
parent 86ec14f9e1
commit 3cc72a43c6
1 changed files with 74 additions and 35 deletions
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109
ArcFormats/Cyberworks/ArcDAT.cs
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@ -27,6 +27,7 @@ using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using GameRes.Compression;
@ -47,6 +48,74 @@ namespace GameRes.Formats.Cyberworks
}
}
internal abstract class ArchiveNameParser
{
protected Regex m_regex;
protected ArchiveNameParser (string pattern)
{
m_regex = new Regex (pattern, RegexOptions.IgnoreCase);
}
public Tuple<string, int> ParseName (string arc_name)
{
var match = m_regex.Match (arc_name);
if (!match.Success)
return null;
int arc_idx;
var toc_name = ParseMatch (match, out arc_idx);
if (null == toc_name)
return null;
return Tuple.Create (toc_name, arc_idx);
}
protected abstract string ParseMatch (Match match, out int arc_idx);
}
internal class ArcNameParser : ArchiveNameParser
{
public ArcNameParser () : base (@"^.+0(?<id>(?<num>\d)(?<idx>[a-z])?)(?:|\..*)$") { }
protected override string ParseMatch (Match match, out int arc_idx)
{
arc_idx = 0;
char num = match.Groups["num"].Value[0];
if (num < '4' || num > '6')
return null;
if (match.Groups["idx"].Success)
arc_idx = char.ToUpper (match.Groups["idx"].Value[0]) - '@';
var toc_name_builder = new StringBuilder (match.Value);
var num_pos = match.Groups["id"].Index;
toc_name_builder.Remove (num_pos, match.Groups["id"].Length);
toc_name_builder.Insert (num_pos, num-'3');
return toc_name_builder.ToString();
}
}
internal class DatNameParser : ArchiveNameParser
{
public DatNameParser () : base (@"^(?<name>d[a-z]+?)(?<idx>[ah])?\.dat$") { }
protected override string ParseMatch (Match match, out int arc_idx)
{
var toc_name_builder = new StringBuilder (match.Groups["name"].Value);
arc_idx = 0;
if (match.Groups["idx"].Success)
{
if ('a' == match.Groups["idx"].Value[0])
{
arc_idx = 1;
toc_name_builder.Append ('h');
}
}
else
toc_name_builder.Append ('h');
toc_name_builder.Append (".dat");
return toc_name_builder.ToString();
}
}
[Export(typeof(ArchiveFormat))]
public class DatOpener : ArchiveFormat
{
@ -61,47 +130,17 @@ namespace GameRes.Formats.Cyberworks
Extensions = new string[] { "dat", "04", "05", "06" };
}
static Regex s_arcname_re = new Regex (@"^.+0(?<id>(?<num>\d)(?<idx>[a-z])?)(?:|\..*)$", RegexOptions.IgnoreCase);
static Regex s_datname_re = new Regex (@"^(?<name>d[a-z]+?)(?<idx>[ah])?\.dat$", RegexOptions.IgnoreCase);
static readonly ArchiveNameParser[] s_name_parsers = { new ArcNameParser(), new DatNameParser() };
public override ArcFile TryOpen (ArcView file)
{
var arc_name = Path.GetFileName (file.Name);
int arc_idx = 0;
StringBuilder toc_name_builder;
var match = s_arcname_re.Match (arc_name);
if (match.Success)
{
char num = match.Groups["num"].Value[0];
if (num < '4' || num > '6')
var result = s_name_parsers.Select (p => p.ParseName (arc_name)).FirstOrDefault (p => p != null);
if (null == result)
return null;
if (match.Groups["idx"].Success)
arc_idx = char.ToUpper (match.Groups["idx"].Value[0]) - '@';
string toc_name = result.Item1;
int arc_idx = result.Item2;
toc_name_builder = new StringBuilder (arc_name);
var num_pos = match.Groups["id"].Index;
toc_name_builder.Remove (num_pos, match.Groups["id"].Length);
toc_name_builder.Insert (num_pos, num-'3');
}
else if ((match = s_datname_re.Match (arc_name)).Success)
{
toc_name_builder = new StringBuilder (match.Groups["name"].Value);
if (match.Groups["idx"].Success)
{
if ('a' == match.Groups["idx"].Value[0])
{
arc_idx = 1;
toc_name_builder.Append ('h');
}
}
else
toc_name_builder.Append ('h');
toc_name_builder.Append (".dat");
}
else
return null;
var toc_name = toc_name_builder.ToString();
toc_name = VFS.CombinePath (VFS.GetDirectoryName (file.Name), toc_name);
if (!VFS.FileExists (toc_name))
return null;