The entry module :
- Code: Select all Expand view
#include "fivewin.ch"
#include "hbclass.ch"
#include "fileio.ch"
external ordkeyno, ordkeycount, ordKeygoto
function main()
*--------------------------
fillDB()
return nil
PROCEDURE FillDB
LOCAL oFile := TFileRead():New( "F:\programs\clipper\FWH\tdata\Docucollect\all.txt101_data_PP.txt" )
LOCAL cTemp := "",cTemp1:= "",cTemp2:= "",cTemp3:= "",cTemp4:= "",cTemp_var:= ""
LOCAL cAcNb := ""
Local nRecNo:=0,old_nRecNo:=0
CreateDBF()
oFile:Open()
IF oFile:Error()
msgStop( oFile:ErrorMsg( "FileRead: " ) )
ELSE
WHILE oFile:MoreToRead()
cTemp1:=cTemp:= oFile:ReadLine()
IF "BANK OF ALEXANDRIA" $ cTemp1
cTemp1:= oFile:ReadLine()
cTemp2:= oFile:ReadLine()
cTemp3:= oFile:ReadLine()
cAcNb := padL( allTrim( subStr( cTemp3, 30 ) ), 12 )
test->( dbAppend() )
test->ACNB := cAcNb
? cAcNb
cTemp_var := cTemp1 + chr(013) + chr (010) +;
cTemp2 + chr(013) + chr (010) +;
cTemp3 + chr(013) + chr (010)
test->TEXT += cTemp_var
endif
test->TEXT += ( " " + allTrim( cTemp ) + chr(013) + chr (010) )
ENDDO
oFile:Close()
ENDIF
test->( dbCloseArea() )
RETURN
STATIC PROCEDURE CreateDBF()
LOCAL aStru := {}
aAdd( aStru, { "ACNB", "C", 12, 0 } )
aAdd( aStru, { "TEXT", "M", 10, 0 } )
dbCreate( "TEST", aStru,, .T., "test" )
RETURN
/*
* $Id: fileread.prg 17867 2012-07-21 16:48:00Z vszakats $
*/
/* Harbour Project source code
* A class that reads a file one line at a time
http://harbour-project.org/
Donated to the public domain on 2001-04-03 by David G. Holm <dholm@jsd-llc.com>
*/
#define oF_ERROR_MIN 1
#define oF_CREATE_OBJECT 1
#define oF_OPEN_FILE 2
#define oF_READ_FILE 3
#define oF_CLOSE_FILE 4
#define oF_ERROR_MAX 4
#define oF_DEFAULT_READ_SIZE 4096
CREATE CLASS TFileRead
VAR cFile // The filename
VAR nHan // The open file handle
VAR lEOF // The end of file reached flag
VAR nError // The current file error code
VAR nLastOp // The last operation done (for error messages)
VAR cBuffer // The readahead buffer
VAR nReadSize // How much to add to the readahead buffer on
// each read from the file
METHOD New( cFile, nSize ) // Create a new class instance
METHOD Open( nMode ) // Open the file for reading
METHOD Close() // Close the file when done
METHOD ReadLine() // Read a line from the file
METHOD Name() // Retunrs the file name
METHOD IsOpen() // Returns .T. if file is open
METHOD MoreToRead() // Returns .T. if more to be read
METHOD Error() // Returns .T. if error occurred
METHOD ErrorNo() // Returns current error code
METHOD ErrorMsg( cText ) // Returns formatted error message
PROTECTED:
METHOD EOL_pos()
END CLASS
METHOD New( cFile, nSize ) CLASS TFileRead
IF nSize == NIL .OR. nSize < 1
// The readahead size can be set to as little as 1 byte, or as much as
// 65535 bytes, but venturing out of bounds forces the default size.
nSize := oF_DEFAULT_READ_SIZE
ENDIF
::cFile := cFile // Save the file name
::nHan := -1 // It's not open yet
::lEOF := .T. // So it must be at EOF
::nError := 0 // But there haven't been any errors
::nLastOp := oF_CREATE_OBJECT // Because we just created the class
::cBuffer := "" // and nothing has been read yet
::nReadSize := nSize // But will be in this size chunks
RETURN Self
METHOD Open( nMode ) CLASS TFileRead
IF ::nHan == -1
// Only open the file if it isn't already open.
IF nMode == NIL
nMode := FO_READ + FO_SHARED // Default to shared read-only mode
ENDIF
::nLastOp := oF_OPEN_FILE
::nHan := FOPEN( ::cFile, nMode ) // Try to open the file
IF ::nHan == -1
::nError := FERROR() // It didn't work
::lEOF := .T. // So force EOF
ELSE
::nError := 0 // It worked
::lEOF := .F. // So clear EOF
ENDIF
ELSE
// The file is already open, so rewind to the beginning.
IF FSEEK( ::nHan, 0 ) == 0
::lEOF := .F. // Definitely not at EOF
ELSE
::nError := FERROR() // Save error code if not at BOF
ENDIF
::cBuffer := "" // Clear the readahead buffer
ENDIF
RETURN Self
METHOD ReadLine() CLASS TFileRead
LOCAL cLine := ""
LOCAL nPos
::nLastOp := oF_READ_FILE
IF ::nHan == -1
::nError := -1 // Set unknown error if file not open
ELSE
// Is there a whole line in the readahead buffer?
nPos := ::EOL_pos()
WHILE ( nPos <= 0 .OR. nPos > LEN( ::cBuffer ) - 3 ) .AND. !::lEOF
// Either no or maybe, but there is possibly more to be read.
// Maybe means that we found either a CR or an LF, but we don't
// have enough characters to discriminate between the three types
// of end of line conditions that the class recognizes (see below).
cLine := FREADSTR( ::nHan, ::nReadSize )
IF EMPTY( cLine )
// There was nothing more to be read. Why? (Error or EOF.)
::nError := FERROR()
IF ::nError == 0
// Because the file is at EOF.
::lEOF := .T.
ENDIF
ELSE
// Add what was read to the readahead buffer.
::cBuffer += cLine
ENDIF
// Is there a whole line in the readahead buffer yet?
nPos := ::EOL_pos()
END WHILE
// Is there a whole line in the readahead buffer?
IF nPos <= 0
// No, which means that there is nothing left in the file either, so
// return the entire buffer contents as the last line in the file.
cLine := ::cBuffer
::cBuffer := ""
ELSE
// Yes. Is there anything in the line?
IF nPos > 1
// Yes, so return the contents.
cLine := LEFT( ::cBuffer, nPos - 1 )
ELSE
// No, so return an empty string.
cLine := ""
ENDIF
// Deal with multiple possible end of line conditions.
DO CASE
CASE SUBSTR( ::cBuffer, nPos, 3 ) == CHR( 13 ) + CHR( 13 ) + CHR( 10 )
// It's a messed up DOS newline (such as that created by a program
// that uses "\r\n" as newline when writing to a text mode file,
// which causes the '\n' to expand to "\r\n", giving "\r\r\n").
nPos += 3
CASE SUBSTR( ::cBuffer, nPos, 2 ) == CHR( 13 ) + CHR( 10 )
// It's a standard DOS newline
nPos += 2
OTHERWISE
// It's probably a Mac or Unix newline
nPos++
ENDCASE
::cBuffer := SUBSTR( ::cBuffer, nPos )
ENDIF
ENDIF
RETURN cLine
METHOD EOL_pos() CLASS TFileRead
LOCAL nCRpos, nLFpos, nPos
// Look for both CR and LF in the file read buffer.
nCRpos := AT( CHR( 13 ), ::cBuffer )
nLFpos := AT( CHR( 10 ), ::cBuffer )
DO CASE
CASE nCRpos == 0
// If there's no CR, use the LF position.
nPos := nLFpos
CASE nLFpos == 0
// If there's no LF, use the CR position.
nPos := nCRpos
OTHERWISE
// If there's both a CR and an LF, use the position of the first one.
nPos := MIN( nCRpos, nLFpos )
ENDCASE
RETURN nPos
METHOD Close() CLASS TFileRead
::nLastOp := oF_CLOSE_FILE
::lEOF := .T.
// Is the file already closed.
IF ::nHan == -1
// Yes, so indicate an unknown error.
::nError := -1
ELSE
// No, so close it already!
FCLOSE( ::nHan )
::nError := FERROR()
::nHan := -1 // The file is no longer open
::lEOF := .T. // So force an EOF condition
ENDIF
RETURN Self
METHOD Name() CLASS TFileRead
// Returns the filename associated with this class instance.
RETURN ::cFile
METHOD IsOpen() CLASS TFileRead
// Returns .T. if the file is open.
RETURN ::nHan != -1
METHOD MoreToRead() CLASS TFileRead
// Returns .T. if there is more to be read from either the file or the
// readahead buffer. Only when both are exhausted is there no more to read.
RETURN !::lEOF .OR. !EMPTY( ::cBuffer )
METHOD Error() CLASS TFileRead
// Returns .T. if an error was recorded.
RETURN ::nError != 0
METHOD ErrorNo() CLASS TFileRead
// Returns the last error code that was recorded.
RETURN ::nError
METHOD ErrorMsg( cText ) CLASS TFileRead
STATIC s_cAction := {"on", "creating object for", "opening", "reading from", "closing"}
LOCAL cMessage, nTemp
// Has an error been recorded?
IF ::nError == 0
// No, so report that.
cMessage := "No errors have been recorded for " + ::cFile
ELSE
// Yes, so format a nice error message, while avoiding a bounds error.
IF ::nLastOp < oF_ERROR_MIN .OR. ::nLastOp > oF_ERROR_MAX
nTemp := 1
ELSE
nTemp := ::nLastOp + 1
ENDIF
cMessage := iif( EMPTY( cText ), "", cText ) + "Error " + hb_ntos( ::nError ) + " " + s_cAction[ nTemp ] + " " + ::cFile
ENDIF
RETURN cMessage
FUNCTION Hb_NtoS( n ) ; RETURN ltrim( str( n ) )