// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: tagfile.cc,v 1.28 2001/03/13 06:51:46 jgg Exp $
+// $Id: tagfile.cc,v 1.37.2.2 2003/12/31 16:02:30 mdz Exp $
/* ######################################################################
Fast scanner for RFC-822 type header information
#include <string>
#include <stdio.h>
+#include <ctype.h>
/*}}}*/
+using std::string;
+
// TagFile::pkgTagFile - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
-pkgTagFile::pkgTagFile(FileFd *pFd,unsigned long Size) : Fd(*pFd), Size(Size)
+pkgTagFile::pkgTagFile(FileFd *pFd,unsigned long Size) :
+ Fd(*pFd),
+ Size(Size)
{
if (Fd.IsOpen() == false)
{
Buffer = 0;
Start = End = Buffer = 0;
- Left = 0;
+ Done = true;
iOffset = 0;
return;
}
Buffer = new char[Size];
Start = End = Buffer;
- Left = Fd.Size();
- TotalSize = Fd.Size();
+ Done = false;
iOffset = 0;
Fill();
}
return false;
if (Tag.Scan(Start,End - Start) == false)
- return _error->Error(_("Unable to parse package file %s (1)"),Fd.Name().c_str());
- }
+ return _error->Error(_("Unable to parse package file %s (1)"),
+ Fd.Name().c_str());
+ }
Start += Tag.size();
iOffset += Tag.size();
Tag.Trim();
-
return true;
}
/*}}}*/
bool pkgTagFile::Fill()
{
unsigned long EndSize = End - Start;
+ unsigned long Actual = 0;
memmove(Buffer,Start,EndSize);
Start = Buffer;
End = Buffer + EndSize;
- if (Left == 0)
+ if (Done == false)
+ {
+ // See if only a bit of the file is left
+ if (Fd.Read(End,Size - (End - Buffer),&Actual) == false)
+ return false;
+ if (Actual != Size - (End - Buffer))
+ Done = true;
+ End += Actual;
+ }
+
+ if (Done == true)
{
- if (EndSize <= 3)
+ if (EndSize <= 3 && Actual == 0)
return false;
if (Size - (End - Buffer) < 4)
return true;
return true;
}
- // See if only a bit of the file is left
- if (Left < Size - (End - Buffer))
- {
- if (Fd.Read(End,Left) == false)
- return false;
-
- End += Left;
- Left = 0;
- }
- else
- {
- if (Fd.Read(End,Size - (End - Buffer)) == false)
- return false;
-
- Left -= Size - (End - Buffer);
- End = Buffer + Size;
- }
return true;
}
/*}}}*/
// Reposition and reload..
iOffset = Offset;
- Left = TotalSize - Offset;
+ Done = false;
if (Fd.Seek(Offset) == false)
return false;
End = Start = Buffer;
return false;
TagCount = 0;
- while (TagCount < sizeof(Indexes)/sizeof(Indexes[0]) && Stop < End)
+ while (TagCount+1 < sizeof(Indexes)/sizeof(Indexes[0]) && Stop < End)
{
// Start a new index and add it to the hash
if (isspace(Stop[0]) == 0)
if (Stop == 0)
return false;
- for (; Stop[1] == '\r' && Stop+1 < End; Stop++);
+ for (; Stop+1 < End && Stop[1] == '\r'; Stop++);
// Double newline marks the end of the record
if (Stop+1 < End && Stop[1] == '\n')
{
Indexes[TagCount] = Stop - Section;
- for (; (Stop[0] == '\n' || Stop[0] == '\r') && Stop < End; Stop++);
+ for (; Stop < End && (Stop[0] == '\n' || Stop[0] == '\r'); Stop++);
return true;
}