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wine
wine-cw
Commits
af21361d
Commit
af21361d
authored
Dec 13, 2007
by
Kirill K. Smirnov
Committed by
Alexandre Julliard
Dec 13, 2007
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Plain Diff
winhelp: Export enum and search B+ tree functions.
parent
25e836e8
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Showing
2 changed files
with
76 additions
and
16 deletions
+76
-16
hlpfile.c
programs/winhelp/hlpfile.c
+50
-16
hlpfile.h
programs/winhelp/hlpfile.h
+26
-0
No files found.
programs/winhelp/hlpfile.c
View file @
af21361d
...
...
@@ -76,18 +76,6 @@ static struct
HLPFILE_LINK
*
link
;
}
attributes
;
/*
* Compare function type for HLPFILE_BPTreeSearch function.
*
* PARAMS
* p [I] pointer to testing block (key + data)
* key [I] pointer to key value to look for
* leaf [I] whether this function called for index of leaf page
* next [O] pointer to pointer to next block
*/
typedef
int
(
*
HLPFILE_BPTreeCompare
)(
void
*
p
,
const
void
*
key
,
int
leaf
,
void
**
next
);
static
BOOL
HLPFILE_DoReadHlpFile
(
HLPFILE
*
,
LPCSTR
);
static
BOOL
HLPFILE_ReadFileToBuffer
(
HFILE
);
static
BOOL
HLPFILE_FindSubFile
(
LPCSTR
name
,
BYTE
**
,
BYTE
**
);
...
...
@@ -106,8 +94,6 @@ static BOOL HLPFILE_Uncompress3(char*, const char*, const BYTE*, const BYTE*);
static
void
HLPFILE_UncompressRLE
(
const
BYTE
*
src
,
const
BYTE
*
end
,
BYTE
**
dst
,
unsigned
dstsz
);
static
BOOL
HLPFILE_ReadFont
(
HLPFILE
*
hlpfile
);
static
void
*
HLPFILE_BPTreeSearch
(
BYTE
*
,
const
void
*
,
HLPFILE_BPTreeCompare
);
/***********************************************************************
*
* HLPFILE_PageByNumber
...
...
@@ -1924,8 +1910,8 @@ static void HLPFILE_UncompressRLE(const BYTE* src, const BYTE* end, BYTE** dst,
* Pointer to block identified by key, or NULL if failure.
*
*/
static
void
*
HLPFILE_BPTreeSearch
(
BYTE
*
buf
,
const
void
*
key
,
HLPFILE_BPTreeCompare
comp
)
void
*
HLPFILE_BPTreeSearch
(
BYTE
*
buf
,
const
void
*
key
,
HLPFILE_BPTreeCompare
comp
)
{
unsigned
magic
;
unsigned
page_size
;
...
...
@@ -1970,6 +1956,54 @@ static void* HLPFILE_BPTreeSearch(BYTE* buf, const void* key,
return
NULL
;
}
/**************************************************************************
* HLPFILE_BPTreeEnum
*
* Enumerates elements in B+ tree.
*
* PARAMS
* buf [I] pointer to the embedded file structured as a B+ tree
* cb [I] compare function
* cookie [IO] cookie for cb function
*/
void
HLPFILE_BPTreeEnum
(
BYTE
*
buf
,
HLPFILE_BPTreeCallback
cb
,
void
*
cookie
)
{
unsigned
magic
;
unsigned
page_size
;
unsigned
cur_page
;
unsigned
level
;
BYTE
*
pages
,
*
ptr
,
*
newptr
;
int
i
,
entries
;
magic
=
GET_USHORT
(
buf
,
9
);
if
(
magic
!=
0x293B
)
{
WINE_ERR
(
"Invalid magic in B+ tree: 0x%x
\n
"
,
magic
);
return
;
}
page_size
=
GET_USHORT
(
buf
,
9
+
4
);
cur_page
=
GET_USHORT
(
buf
,
9
+
26
);
level
=
GET_USHORT
(
buf
,
9
+
32
);
pages
=
buf
+
9
+
38
;
while
(
--
level
>
0
)
{
ptr
=
pages
+
cur_page
*
page_size
;
cur_page
=
GET_USHORT
(
ptr
,
4
);
}
while
(
cur_page
!=
0xFFFF
)
{
ptr
=
pages
+
cur_page
*
page_size
;
entries
=
GET_SHORT
(
ptr
,
2
);
ptr
+=
8
;
for
(
i
=
0
;
i
<
entries
;
i
++
)
{
cb
(
ptr
,
(
void
**
)
&
newptr
,
cookie
);
ptr
=
newptr
;
}
cur_page
=
GET_USHORT
(
pages
+
cur_page
*
page_size
,
6
);
}
}
/***********************************************************************
*
...
...
programs/winhelp/hlpfile.h
View file @
af21361d
...
...
@@ -3,6 +3,7 @@
*
* Copyright 1996 Ulrich Schmid
* 2002 Eric Pouech
* 2007 Kirill K. Smirnov
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
...
...
@@ -150,6 +151,28 @@ typedef struct tagHlpFileFile
HLPFILE_WINDOWINFO
*
windows
;
}
HLPFILE
;
/*
* Compare function type for HLPFILE_BPTreeSearch function.
*
* PARAMS
* p [I] pointer to testing block (key + data)
* key [I] pointer to key value to look for
* leaf [I] whether this function called for index of leaf page
* next [O] pointer to pointer to next block
*/
typedef
int
(
*
HLPFILE_BPTreeCompare
)(
void
*
p
,
const
void
*
key
,
int
leaf
,
void
**
next
);
/*
* Callback function type for HLPFILE_BPTreeEnum function.
*
* PARAMS
* p [I] pointer to data block
* next [O] pointer to pointer to next block
* cookie [IO] cookie data
*/
typedef
void
(
*
HLPFILE_BPTreeCallback
)(
void
*
p
,
void
**
next
,
void
*
cookie
);
HLPFILE
*
HLPFILE_ReadHlpFile
(
LPCSTR
lpszPath
);
HLPFILE_PAGE
*
HLPFILE_Contents
(
HLPFILE
*
hlpfile
);
HLPFILE_PAGE
*
HLPFILE_PageByHash
(
HLPFILE
*
hlpfile
,
LONG
lHash
);
...
...
@@ -158,3 +181,6 @@ HLPFILE_PAGE* HLPFILE_PageByOffset(HLPFILE* hlpfile, LONG offset);
LONG
HLPFILE_Hash
(
LPCSTR
lpszContext
);
void
HLPFILE_FreeLink
(
HLPFILE_LINK
*
link
);
void
HLPFILE_FreeHlpFile
(
HLPFILE
*
);
void
*
HLPFILE_BPTreeSearch
(
BYTE
*
,
const
void
*
,
HLPFILE_BPTreeCompare
);
void
HLPFILE_BPTreeEnum
(
BYTE
*
,
HLPFILE_BPTreeCallback
cb
,
void
*
cookie
);
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