Contributed works of Grigory Filatov
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If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS Appendix: How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. <one line to give the program's name and a brief idea of what it does.> Copyright (C) 19yy <name of author> 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 of the License, 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 program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) 19yy name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. <signature of Ty Coon>, 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. File : Harbour\COPYING.TXT
DUPHANDLE() Short: ------ DUPHANDLE() Duplicate record finder with delete/copy options Returns: -------- Nil Syntax: ------- DUPHANDLE([aFields,aDesc],[aOpenIndexes]) Description: ------------ DUPHANDLE() is similiar to DUPLOOK(), but takes a different approach The user is asked to select fields (only Character fields are presented) to check for duplication. The fields selected are combined into an index key, and an index is created. The database is then scanned for duplicates. If a duplicate set is found, a Tbrowse/tag window is popped up, and the user is asked to tag records. This continues until all duplicate sets are found, or the user chooses to quit the process. The user is then allowed to Process the tagged duplicate records. There are 4 possible options: Delete all tagged records Delete all NOT tagged records Copy all tagged records Copy all NOT tagged records The options are not mutually exclusive. For instance, you could copy all tagged records to a history file, and then delete them. As with all SuperLib deletions, the PACKING is left to you. [aFields,aDesc] are optional arrays of fieldnames and field descriptions [aOpenIndexes] is an optional array of currently open index names. Clipper has no way to determine the names of currently open indexes and, since this function creates temporary indexes, the current indexes will be closed. Only by having a list [aOpenIndexes] can we re-open the indexes on exit. Examples: --------- USE customer duphandle() Warnings: ---------- Closes all indexes. Source: ------- S_DUPH.PRG
Copies files normally or in backup mode
FileCopy( <cSourceFile>, ; <cTargetFile>, ; [<lBackup>] ) --> nBytesCopied
<cSourceFile> : A character string containing the name of the file to copy to the target file.It must be specified with a file extension. If <cSourceFile> contains no drive and/or directory information, the current directory is used. SET DEFAULT and SET PATH settings are ignored.
<cTargetFile> : A character string holding the name of the target file to create. The file name may include drive and directory and must include an extension. If the file exists already, it is overwritten
<lBackup> : This parameter defaults to .F. (false). When set to .T. (true) the function operates in backup mode. This allows for copying large files to several diskettes.
The funtion returns the number of bytes copied from <cSourceFile> to <cTargetFile>.
The FileCopy() function copies a source file to a target file. The <lBackup> parameter can be used to copy large files to several diskettes. If <lBackup> set to .T. (true), FileCopy() copies the maximum possible number of bytes to the target file (diskette). The function FileCOpen() is then used to check if <cSourceFile> is still open. If this is the case the user can be prompted to insert a new diskette and FileCCont() continues the copying operation.
. Show a simple copy: ? FileCopy("A:\TEXT.TXT", "C:\TEST.TXT") // Bytes copied . A back up using FileCopy(): nCounter := 1 // "BIG.001" etc. cTargetFile := "BIG" + NTOC(nCounter, 10, 3, "0") FileCopy("BIG.DBF", "A:\" + cTargetFile, .T.) // Back up mode DO WHILE FILECOPEN() DO NEXTDISK // Request disk change nCounter := nCounter + 1 cTargetFile := "BIG" + NTOC(nCounter, 10, 3, "0") FileCCont(cTargetFile) // Next disk - new name ENDDO RETURN PROCEDURE NEXTDISK ? "Please insert new diskette in Drive A:!" WAIT RETURN Another simple File Copy procedure : PROCEDURE Main LOCAL cSourceFile := "C:\Harbour\news.txt" LOCAL cTargetFile := "D:\temp\HRB_News.txt" CLS ? "Copying", cSourceFile, "to", cTargetFile, "..." ? "Copied", FileCopy( cSourceFile, cTargetFile ), "bytes" RETURN