VAR/VAR.UrlCompressor
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Base62.Decode: Crop extra bits while decoding, for the cases of 5 bits.

Browse Source
This commit is contained in:
Valeriano A.R.
2017-07-13 02:07:06 +02:00
parent 9fe35362fc
commit a76cad1aa8
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
VAR.UrlCompressor/Base62.cs
View File

@@ -53,6 +53,7 @@ namespace VAR.UrlCompressor
for (int i = 0; i < base62.Length; i++) for (int i = 0; i < base62.Length; i++)
{ {
int charIdx = Base62CodingSpace.IndexOf(base62[i]); int charIdx = Base62CodingSpace.IndexOf(base62[i]);
if (charIdx == -1) { continue; }
if ((i + 1) == base62.Length) if ((i + 1) == base62.Length)
{ {
// Last symbol // Last symbol
@@ -66,7 +67,7 @@ namespace VAR.UrlCompressor
bytes.WriteBit(bitPosition, 3 - pad, (charIdx & 0x04) > 0); bytes.WriteBit(bitPosition, 3 - pad, (charIdx & 0x04) > 0);
bytes.WriteBit(bitPosition, 4 - pad, (charIdx & 0x02) > 0); bytes.WriteBit(bitPosition, 4 - pad, (charIdx & 0x02) > 0);
bytes.WriteBit(bitPosition, 5 - pad, (charIdx & 0x01) > 0); bytes.WriteBit(bitPosition, 5 - pad, (charIdx & 0x01) > 0);
bitPosition += (6 - pad);
break; break;
} }
@@ -100,6 +101,8 @@ namespace VAR.UrlCompressor
} }
} }
Array.Resize(ref bytes, (int)Math.Ceiling((double)bitPosition / 8));
return bytes; return bytes;
} }
} }