Mirrors/SubtitleEdit
1
0
Fork 0
mirror of https://github.com/SubtitleEdit/subtitleedit.git synced 2024-10-28 15:02:35 +01:00
Code Issues Projects Releases Wiki Activity

Trying to auto-detect pac encoding

Browse Source
This commit is contained in:
niksedk 2014-09-11 17:24:27 +02:00
parent da42c014a4
commit 662d1f765a
1 changed files with 106 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

109
src/Logic/SubtitleFormats/Pac.cs
View File

@ -1,9 +1,9 @@
using System;
using Nikse.SubtitleEdit.Forms;
using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
using Nikse.SubtitleEdit.Forms;
// The PAC format was developed by Screen Electronics
// The PAC format save the contents, time code, position, justification, and italicization of each subtitle. The choice of font is not saved.
@ -1203,11 +1203,114 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
}
}
private int AutoDetectEncoding()
{
try
{
byte[] buffer = Utilities.ReadAllBytes(_fileName);
int index = 0;
int count = 0;
_codePage = 0;
while (index < buffer.Length)
{
int start = index;
Paragraph p = GetPacParagraph(ref index, buffer);
if (p != null)
count++;
if (count == 2)
{
index = start;
_codePage = 0;
bool allOK = true;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < LatinLetters.Count; i++)
sb.Append(LatinLetters[i]);
string latinLetters = sb.ToString() + "ABCDEFGHIJKLMNOPPQRSTUVWXYZÆØÅÄÖÜabcdefghijklmnopqrstuvwxyzæøäåü(1234567890, .!?-\r\n'\")";
foreach (char ch in Utilities.RemoveHtmlTags(p.Text, true))
{
if (!latinLetters.Contains(ch.ToString()))
allOK = false;
}
if (allOK)
return 0; // Latin
index = start;
_codePage = 1;
p = GetPacParagraph(ref index, buffer);
allOK = true;
foreach (char ch in Utilities.RemoveHtmlTags(p.Text, true))
{
if (!"AαBβΓγΔδEϵεZζHηΘθIιKκΛλMμNνΞξOοΠπPρΣσςTτΥυΦϕφXχΨψΩω(1234567890, .!?-\r\n'\")".Contains(ch.ToString()))
allOK = false;
}
if (allOK)
return 1; // Greek
index = start;
_codePage = 3;
p = GetPacParagraph(ref index, buffer);
allOK = true;
sb = new StringBuilder();
for (int i = 0; i < ArabicLetters.Count; i++)
sb.Append(ArabicLetters[i]);
string arabicLetters = sb.ToString() + "(1234567890, .!?-\r\n'\")";
foreach (char ch in Utilities.RemoveHtmlTags(p.Text, true))
{
if (!arabicLetters.Contains(ch.ToString()))
allOK = false;
}
if (allOK)
return 3; // Arabic
index = start;
_codePage = 4;
p = GetPacParagraph(ref index, buffer);
allOK = true;
sb = new StringBuilder();
for (int i = 0; i < HebrewLetters.Count; i++)
sb.Append(HebrewLetters[i]);
string hebrewLetters = sb.ToString() + "(1234567890, .!?-\r\n'\")";
foreach (char ch in Utilities.RemoveHtmlTags(p.Text, true))
{
if (!hebrewLetters.Contains(ch.ToString()))
allOK = false;
}
if (allOK)
return 4; // Hebrew
index = start;
_codePage = 4;
p = GetPacParagraph(ref index, buffer);
allOK = true;
sb = new StringBuilder();
for (int i = 0; i < CyrillicLetters.Count; i++)
sb.Append(CyrillicLetters[i]);
string cyrillicLetters = sb.ToString() + "(1234567890, .!?-\r\n'\")";
foreach (char ch in Utilities.RemoveHtmlTags(p.Text, true))
{
if (!cyrillicLetters.Contains(ch.ToString()))
allOK = false;
}
if (allOK)
return 6; // Cyrillic
return 0; // Latin
}
}
return 0; // Latin
}
catch
{
return 0; // Latin
}
}
private void GetCodePage(byte[] buffer, int index, int endDelimiter)
{
if (BatchMode)
{
_codePage = -2;
if (_codePage == -1)
_codePage = AutoDetectEncoding();
return;
}