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harbour-core/src/rtl/hbdoc.prg
2013-03-28 15:54:21 +01:00

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/*
* Harbour Project source code:
* HBDOC reader
*
* Copyright 2010 Viktor Szakats (harbour syenar.net)
* www - http://harbour-project.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING.txt. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
*
* As a special exception, the Harbour Project gives permission for
* additional uses of the text contained in its release of Harbour.
*
* The exception is that, if you link the Harbour libraries with other
* files to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the Harbour library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the Harbour
* Project under the name Harbour. If you copy code from other
* Harbour Project or Free Software Foundation releases into a copy of
* Harbour, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for Harbour, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*
*/
#include "directry.ch"
#include "fileio.ch"
#define _HBDOC_SRC_SUBDIR "doc"
#define _HBDOC_SRC_EXT ".txt"
#define _HBDOC_ADD_MSG( a, m ) IF HB_ISARRAY( a ); AAdd( a, m ); ENDIF
FUNCTION __hbdoc_FromSource( cFile, aErrMsg )
LOCAL aEntry := {}
IF HB_ISSTRING( cFile )
__hbdoc__read_stream( aEntry, cFile, "(stream)",, aErrMsg )
ENDIF
RETURN aEntry
FUNCTION __hbdoc_DirLastModified( cDir )
LOCAL aFile
LOCAL cDocDir
LOCAL aDocFile
LOCAL tDoc
LOCAL tLast := 0d0
IF HB_ISSTRING( cDir )
cDir := hb_DirSepAdd( cDir )
IF hb_DirExists( cDir + _HBDOC_SRC_SUBDIR )
FOR EACH aFile IN Directory( cDir + _HBDOC_SRC_SUBDIR + hb_ps() + hb_osFileMask(), "D" )
IF "D" $ aFile[ F_ATTR ] .AND. ;
!( aFile[ F_NAME ] == "." ) .AND. ;
!( aFile[ F_NAME ] == ".." )
cDocDir := cDir + _HBDOC_SRC_SUBDIR + hb_ps() + aFile[ F_NAME ]
FOR EACH aDocFile IN Directory( cDocDir + hb_ps() + "*" + _HBDOC_SRC_EXT )
IF hb_FGetDateTime( cDocDir + hb_ps() + aDocFile[ F_NAME ], @tDoc ) .AND. ;
tLast < tDoc
tLast := tDoc
ENDIF
NEXT
ENDIF
NEXT
ENDIF
ENDIF
RETURN tLast
FUNCTION __hbdoc_LoadDir( cDir, cName, aErrMsg )
LOCAL hMeta
LOCAL nCount
LOCAL aFile
LOCAL aEntry
IF HB_ISSTRING( cDir )
cDir := hb_DirSepAdd( cDir )
IF hb_DirExists( cDir + _HBDOC_SRC_SUBDIR )
aEntry := {}
hMeta := { => }
IF HB_ISSTRING( cName )
hMeta[ "_COMPONENT" ] := cName
ENDIF
nCount := 0
FOR EACH aFile IN Directory( cDir + _HBDOC_SRC_SUBDIR + hb_ps() + hb_osFileMask(), "D" )
IF "D" $ aFile[ F_ATTR ] .AND. ;
!( aFile[ F_NAME ] == "." ) .AND. ;
!( aFile[ F_NAME ] == ".." )
__hbdoc__read_langdir( aEntry, cDir + _HBDOC_SRC_SUBDIR + hb_ps() + aFile[ F_NAME ], hMeta, aErrMsg )
++nCount
ENDIF
NEXT
IF nCount == 0
_HBDOC_ADD_MSG( aErrMsg, hb_StrFormat( "Warning: Component (%1$s) has no language subdirs", cDir ) )
ENDIF
ENDIF
ENDIF
RETURN aEntry
STATIC PROCEDURE __hbdoc__read_langdir( aEntry, cDir, hMeta, aErrMsg )
LOCAL aFile
LOCAL nCount
nCount := 0
FOR EACH aFile IN Directory( cDir + hb_ps() + "*" + _HBDOC_SRC_EXT )
hMeta[ "_LANG" ] := aFile[ F_NAME ]
__hbdoc__read_file( aEntry, cDir + hb_ps() + aFile[ F_NAME ], hMeta, aErrMsg )
++nCount
NEXT
IF nCount == 0
_HBDOC_ADD_MSG( aErrMsg, hb_StrFormat( "Warning: Component (%1$s) has no documentation files", cDir ) )
ENDIF
RETURN
STATIC PROCEDURE __hbdoc__read_file( aEntry, cFileName, hMeta, aErrMsg )
LOCAL aFilenameTemplateMap := { ;
"FUNCTION" => "func_" , ;
"C FUNCTION" => "cfunc_" , ;
"CLASS" => "class_" , ;
"COMMAND" => "cmd_" , ;
"PP" => "pp_" }
LOCAL tmp
IF "TEMPLATE" $ hMeta
hb_HDel( hMeta, "TEMPLATE" )
ENDIF
/* Preselect the default template based on source filename */
FOR EACH tmp IN aFilenameTemplateMap
IF Lower( Left( cFileName, Len( tmp ) ) ) == tmp
hMeta[ "TEMPLATE" ] := tmp:__enumKey()
ENDIF
NEXT
hMeta[ "_DOCSOURCE" ] := cFileName
__hbdoc__read_stream( aEntry, MemoRead( cFileName ), cFileName, hMeta, aErrMsg )
RETURN
STATIC PROCEDURE __hbdoc__read_stream( aEntry, cFile, cFileName, hMeta, aErrMsg )
LOCAL hEntry := NIL
LOCAL cLine
LOCAL cSection
LOCAL tmp
LOCAL nLine
LOCAL nStartCol
cFile := StrTran( cFile, Chr( 13 ) )
cFile := StrTran( cFile, Chr( 9 ), " " )
nLine := 0
FOR EACH cLine IN hb_ATokens( cFile, Chr( 10 ) )
cLine := SubStr( cLine, 4 )
++nLine
SWITCH AllTrim( cLine )
CASE "$DOC$"
IF hEntry != NIL
_HBDOC_ADD_MSG( aErrMsg, hb_StrFormat( "Warning: %1$s: %2$d: $DOC$ without $END$", cFileName, nLine ) )
ELSEIF ! Empty( hEntry )
AAdd( aEntry, hEntry )
ENDIF
hEntry := { => }
hb_HKeepOrder( hEntry, .T. )
IF HB_ISHASH( hMeta )
FOR EACH tmp IN hMeta
hEntry[ tmp:__enumKey() ] := tmp
NEXT
ENDIF
EXIT
CASE "$END$"
IF hEntry == NIL
_HBDOC_ADD_MSG( aErrMsg, hb_StrFormat( "Warning: %1$s: %2$d: $END$ without $DOC$", cFileName, nLine ) )
ELSEIF ! Empty( hEntry )
AAdd( aEntry, hEntry )
ENDIF
hEntry := NIL
EXIT
OTHERWISE
IF hEntry == NIL
/* Ignore line outside entry. Don't warn, this is normal. */
ELSEIF Left( LTrim( cLine ), 1 ) == "$" .AND. Right( RTrim( cLine ), 1 ) == "$"
cLine := AllTrim( cLine )
cSection := SubStr( cLine, 2, Len( cLine ) - 2 )
IF cSection $ hEntry
_HBDOC_ADD_MSG( aErrMsg, hb_StrFormat( "Warning: %1$s: %2$d: Duplicate sections inside the same entry", cFileName, nLine ) )
ELSE
hEntry[ cSection ] := ""
ENDIF
ELSEIF ! Empty( cSection )
IF ! Empty( hEntry[ cSection ] )
hEntry[ cSection ] += Chr( 13 ) + Chr( 10 )
ELSE
/* some "heuristics" to detect in which column the real content starts,
we assume the first line of content is correct, and use this with all
consecutive lines. [vszakats] */
nStartCol := Len( cLine ) - Len( LTrim( cLine ) ) + 1
ENDIF
hEntry[ cSection ] += SubStr( cLine, nStartCol )
ELSEIF ! Empty( cLine )
_HBDOC_ADD_MSG( aErrMsg, hb_StrFormat( "Warning: %1$s: %2$d: Content outside section", cFileName, nLine ) )
ENDIF
ENDSWITCH
NEXT
IF hEntry != NIL
_HBDOC_ADD_MSG( aErrMsg, hb_StrFormat( "Warning: %1$s: %2$d: $DOC$ without $END$", cFileName, nLine ) )
ENDIF
RETURN
FUNCTION __hbdoc_ToSource( aEntry )
LOCAL cSource := ""
LOCAL hEntry
LOCAL item
LOCAL cLine
LOCAL cLineOut
IF HB_ISARRAY( aEntry )
FOR EACH hEntry IN aEntry
cSource += hb_eol()
cSource += "/* $DOC$" + hb_eol()
FOR EACH item IN hEntry
IF HB_ISSTRING( item ) .AND. ;
!( Left( item:__enumKey(), 1 ) == "_" )
cSource += " $" + item:__enumKey() + "$" + hb_eol()
FOR EACH cLine IN hb_ATokens( StrTran( item, Chr( 13 ) ), Chr( 10 ) )
cLineOut := iif( Len( cLine ) == 0, "", Space( 4 ) + cLine )
cSource += iif( Empty( cLineOut ), "", " " + cLineOut ) + hb_eol()
NEXT
ENDIF
NEXT
cSource += " $END$" + hb_eol()
cSource += " */" + hb_eol()
NEXT
ENDIF
RETURN cSource
FUNCTION __hbdoc_FilterOut( cFile )
LOCAL lEntry := .F.
LOCAL cLine
LOCAL cOK := ""
LOCAL nToSkip := 0
LOCAL nEmpty := 0
cFile := StrTran( cFile, Chr( 13 ) )
cFile := StrTran( cFile, Chr( 9 ), " " )
FOR EACH cLine IN hb_ATokens( cFile, Chr( 10 ) )
SWITCH AllTrim( SubStr( cLine, 4 ) )
CASE "$DOC$"
lEntry := .T.
EXIT
CASE "$END$"
lEntry := .F.
nToSkip := 1
EXIT
OTHERWISE
IF ! lEntry
IF nToSkip > 0
nToSkip--
ELSE
IF Empty( cLine )
nEmpty++
ELSE
nEmpty := 0
ENDIF
IF nEmpty < 2
cOK += cLine
IF ! cLine:__enumIsLast()
cOK += hb_eol()
ENDIF
ENDIF
ENDIF
ENDIF
ENDSWITCH
NEXT
RETURN cOK
/*
* 0xC0, 'H', 'B', 'D' followed two-byte version number in Little Endian order.
* Corresponding magic(5) rule:
*
* 0 string \xc0HBD Harbour Documentation
* >4 leshort x version %d
*
* Until such time that the serialized format changes, and handling of
* previously-saved files is required, only a naive approach of using
* version 1 is taken.
*/
#define _HBDOC_EXT ".hbd"
#define _HBDOC_SIG_LEN 6
#define _HBDOC_SIGNATURE ( ;
hb_BChar( 0xC0 ) + ;
hb_BChar( 0x48 ) + ;
hb_BChar( 0x42 ) + ;
hb_BChar( 0x44 ) + ;
hb_BChar( 0x01 ) + ;
hb_BChar( 0x00 ) )
FUNCTION __hbdoc_SaveHBD( cFileName, aEntry )
LOCAL fhnd
IF HB_ISSTRING( cFileName ) .AND. ;
HB_ISARRAY( aEntry )
IF Set( _SET_DEFEXTENSIONS )
cFileName := hb_FNameExtSetDef( cFileName, _HBDOC_EXT )
ENDIF
fhnd := hb_FCreate( cFileName, FC_NORMAL, FO_CREAT + FO_TRUNC + FO_READWRITE + FO_EXCLUSIVE )
IF fhnd != F_ERROR
FWrite( fhnd, _HBDOC_SIGNATURE )
FWrite( fhnd, hb_ZCompress( hb_Serialize( aEntry ) ) )
FClose( fhnd )
RETURN .T.
ENDIF
ENDIF
RETURN .F.
FUNCTION __hbdoc_LoadHBD( cFileName )
LOCAL fhnd
LOCAL aEntry := NIL
LOCAL cBuffer
IF HB_ISSTRING( cFileName )
IF Set( _SET_DEFEXTENSIONS )
cFileName := hb_FNameExtSetDef( cFileName, _HBDOC_EXT )
ENDIF
fhnd := FOpen( cFileName, FO_READ )
IF fhnd != F_ERROR
cBuffer := Space( _HBDOC_SIG_LEN )
FRead( fhnd, @cBuffer, hb_BLen( cBuffer ) )
IF cBuffer == _HBDOC_SIGNATURE
cBuffer := Space( FSeek( fhnd, 0, FS_END ) - _HBDOC_SIG_LEN )
FSeek( fhnd, _HBDOC_SIG_LEN, FS_SET )
FRead( fhnd, @cBuffer, hb_BLen( cBuffer ) )
FClose( fhnd )
aEntry := hb_Deserialize( hb_ZUncompress( cBuffer ) )
cBuffer := NIL
IF ! HB_ISARRAY( aEntry )
aEntry := NIL
ENDIF
ELSE
FClose( fhnd )
ENDIF
ENDIF
ENDIF
RETURN aEntry