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Text File | 1991-07-13 | 20.6 KB | 428 lines

******************************************************************************* * TXS.DOC-V2.0 * * LAST UPDATE - Jul. 12, 1991. (c) 1991 by Loewy Ron. * ******************************************************************************* ┌─────────────────────────────────────────────────┐ │█▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀│█ │█ ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▄ │█ │█ ▀▀▀▀▀▀▀▒▒▒█▀▀▀▀▀▀▀▀ │█ │█ ▒▒▒█ ░░▄ ░░▄ │█ │█ ▒▒▒█ ▀░░▄ ░░█▀▀ │█ │█ ▒▒▒█ E ▀░░█▀ │█ │█ ▒▒▒█ ░░█▀░░▄ T │█ │█ ▒▒▒█ ░░█▀▀ ▀░░▄ │█ │█ ▒▒▒█ ▀▀ ▀▀ │█ │█ ▀▀▀ │█ │█ │█ │█ ▓▓▓▓▓▓▓▄ H │█ │█ ▓▓█▀▀▀▀▀▀ │█ │█ ▓▓▓▓▓▓▓▄ A │█ │█ ▀▀▀▀▀▓▓▄ R │█ │█ ▓▓▓▓▓▓█▀▀ E │█ │█ ▀▀▀▀▀▀ │█ │█ C │█ │█ │█ └─────────────────────────────────────────────────┘█ ▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ Contact : Loewy Ron, 9 Haneveem st. Herzeliya, 46465, Israel. TeXt-Search program documantation file, 1991. " WHERE IS MY TEXTSWITCH, THE ONE WITH THE PICKLES " (tm). ******************************************************************************* * Whats-New * ******************************************************************************* - Fixed VGA Font size detection on some VGA adapters. - Added mathematic logic signs for AND (*), OR (+), NOT (~), XOR (@) - Added Display file Option from Files menu. - Added hot-keys ALT-S, ALT-F, ALT-Q, ALT-E for kbd users to open menus. - A new About screen is presented. - Added dos wild-card support for add file to dictionary. - Added stats entry in system menu, gives Dictionary statistics. - Added Exclude words functionality, words that are assumed to be in every file and thus are not saved to the normal dictionary, but to a special exclude dictionary, this feature allows the user to create bigger logical dictionaries, because many redundent entries are eliminated, and there is more space left for needed words. - Added Exclude menu to manipulate the exclude dictionary - Added support for hebrew words. - The PANIC termination keys (RIGHT mouse button, or ALT-X) open a dialog box and ask for confirmation from now on. ******************************************************************************* * Introduction * ******************************************************************************* During 1989 DDJ published in the C programming column a text - search program called TEXTSRCH, I was interested in the project, and found some uses to it in my job, however - the implementation of TEXTSRCH had some storage-size side effects that prohibited me from using the program. In the 1990 November issue of DDJ, Mr. E. Floyd wrote a very interesting article about existential dictionaries, After reading the article and examining the supplied dictionary source code, I decided to write a program that would offer TEXTSRCH functionality, and use existential dictionary to save storage space. TXS is this program. At the company I work for we use Telex messages to support our clients technically, and to interact with companies we are engaged with, the Telex messages are stored in a special \telex directory on one of the PCs. When we had to search for several issues, we used to look for the subject lines in our secretary's Telex log-book, or use grep to find the relevant files. The problems with this approach - The search is slow, slow, not sophisticated and .. (did I mention it before ?) Slow. TEXTSRCH offered a way to perform "Logic" search on the Indexed files-database, however, In order to support our 300K of 250+ (and growing) files, TEXTSRCH built a 500K index file, and we had to re-compile TEXTSRCH when-ever our data-base exceeded the number of supported files. Enter TXS , we now use a indexing system for our files, that consumes only 70K (even less) on our hard-disk, and even if we will double the number of files, TXS will not consume more then that amount. (maybe some extra K's for the CFG file). TXS features - index files for words existentiality, using small storage for the dictionary files, a user-friendly interface (Much much nicer then TEXTSRCH), multiple query windows, "Smart", "Logic" queries, great colors, (well.. thats what I think, It was not me that chose them .. ), and some place to grow. (Look for the next release). ******************************************************************************* * Setup * ******************************************************************************* 1. Copy the TXS.EXE program to a directory in the PATH. 2. Optional - Define a TXSFILE environment variable in your AUTOEXEC.BAT file, to point to the default dictionary. If this variable is not set TXS will refer to TXSDEF as the default dictionary. Please notice : when you start TXS for the first time it will complain that it can not find TXSDEF, answer the alert window using the mouse, or the ENTER key, and create a New dictionary from the System menu. ******************************************************************************* * Operation * ******************************************************************************* To start TXS enter the following command in the command line : txs [dictionary_name] The dictionary_name is optional, if a dictionary_name is supplied TXS will look for dictionary_name.CFG file, to describe the dictionary. If dictionary_name was not supplied, TXS will look for the TXSFILE environment variable, if this variable is not set, TXS will look for the TXSDEF.CFG dictionary configuration file. Some examples to the operation of TXS are : TXS - will look for TXSDEF.CFG SET TXSFILE=C:\DICT\INDEX TXS - will look for the file INDEX.CFG in the DICT directory. TXS C:\TELEX\DICT - will look for the DICT.CFG file in the C:\TELEX directory. After TXS displays its About window, choose the Ok button using the mouse left button, or pressing the ENTER key, if you do not have a mouse installed. To activate the menu use the mouse to point on the desired menu and press the left-button, or press the F10 key if you do not have a mouse. (Keyboard users can press ALT with the first letter of the menu they want to open, ALT-F for files, as an example). TXS menu is defined as follows : System menu : Path - define the current work directory. Directory - display the current directory's file list. New - define a new dictionary. About - display the introduction window. Command - Open a command log window, please refer to the Command section. cmdWin - Open an enhanced command log window, please refer to the Command section. Stats - Give dictionary statistics. Quit - Exit TXS. Files menu : Add - add a new text file to the dictionary index. Remove - remove a text file from the dictionary index. Display - display a file from the dictionary in a window. Query menu : Open log - open a query log window. several windows can be on the screen simultaneity. Query log - activate the top-most query window. Exclude menu : New - Restart a new exclude words dictionary. Add Words - Add words to the exclude words dictionary. Rebuild - Create a new exclude words dictionary from a text file that has one word on every line, and has the name of the current dictionary with a .EXL suffix. The status line at the bottom of the screen will list the available hot keys to move, re-size, close or switch a window. If you have a mouse installed (and the mouse driver is active), you can point the mouse cursor to the grow box at the lower-right corner of the window, close it by clicking on the top-left close box, move it by pointing on the title (or any-other place on the top border row, and dragging. The queries understood by the query window are the form : [NOT] search-word-1 [AND | OR | XOR [NOT] search-word-2 [AND | ...]] Some examples will clarify the definition : RON and not landmark - will print all of the files that contain the word RON, but do not contain the word LANDMARK. JOG or DIE - will print all the files that contain the word JOG, or the word DIE, or both of them. JOG xor DIE - All of the files that contain either one of the words DIE or JOG, but not both of them. Some points to consider : TXS does not make a difference between upper and lower case letters. - lanDmark, LANDMARK, landMArK and landmark are all the same. TXS define a word - any set of characters ['a'..'z', 'A'..'Z']. Operator precedence : NOT, AND, XOR, OR. Over-riding operator precedence - using the () notation : Joe and Mark or Jehoshaphat is the same as : (Joe and Mark) or Jehoshaphat, but Joe and (Mark or Jehoshaphat) is different, and will yield different results. Operator substitution : NOT = ~, AND = *, XOR = @, OR = + Joe AND Mark is the same as Joe * Mark Mark XOR (Joe OR Jill AND NOT Ben) is the same as Mark @ (Joe + Jill * ~ Ben) and as Mark @ (Joe OR Jill AND ~ Ben) ******************************************************************************* * Command * ******************************************************************************* The command window is a window that offers a text field in which the user can enter DOS command lines, and TXS will mimic the shell operation, and display the results in the window, however, this feature is very dangerous, because DOS is not a reentrant operating system, to use this feature you must understand how TXS handles the commands entered at the command line. TXS uses the undocumented DOS INT2E to transfer control to the parent OS shell, this method was chosen to allow floppy diskettes users use this feature without having to put the boot diskette in the boot drive, (otherwise we will have to load a secondary shell), this approach, however causes difficulties with some of the command shells available. 4DOS for example does not normally support INT2E, J.P.Software supplies a free TSR program called SHELL2E, to allow 4DOS users to use INT2E, if you use 4DOS, get that program, and load it in your AUTOEXEC.BAT file. APP uses an old time trick to display the results of the command in the window, (assuming the command does not write directly to screen), by re-directing the command output to a temporary file, and displaying it. This approach restricts you to use some of the normal commands, commands that require user response, will not work - unless you know the required response by heart. This feature is only useful for quick analysis - to list an archives contents, to look at the memory list (using mcbList ..), etc. (***) - cmdWin - The enhanced command log window - This window was added from version 1.7 - this window uses an idea I got from the execws unit published by Turbo Power and implemented a similiar clip to window to stdout, stdin and stderr by hooking to the int 21 vector. Do notice that the code used by me was rewritten to hook into my INT2E interface (while execws uses a swap mechanism and calls DOS EXEC function). The reason I left both the command and cmdWin windows is as follows : the cmdWin does not create a temporary file and reads from it, so lines that are longer then the current window display are wrapped around and not truncated, this can cause a very messy display inside that window, however - the cmdWin window will display input requests from the user, and wait for responses without the need to remember the answers. In cmdWin you can type DIR *.* /P and see the "Press any key for more ..", while the normal Command window will wait for the key Press without displaying the message ! - The advantage is that user response is now available through a window ! ******************************************************************************* * DESQview users * ******************************************************************************* TXS can run in a DESQview window and operate in it. (No need to zoom TXS to operate it). To achive it configure TXS window in DESQview with a N parameter to the "Writes directly to screen" option. ******************************************************************************* * Command Line Operation * ******************************************************************************* From version 1.2 the XCD.EXE program is available and allows command line queries on the dictionary built on with TXS. To operate XCD enter from the command line : C:\PATH>xcd <search criteria> where the <search criteria> is the same as the command line you would have entered in the query window of TXS. (XCD is available in a different package) ******************************************************************************* * Warranty * ******************************************************************************* There is no warranty what so ever, The program is supplied as is, The author (Loewy Ron), is not, and will not be responsible for any damages, lost profits, or inconveniences caused by the use, or inability to use this program. The use of the program is at your own risk. By using the program you agree to this. ******************************************************************************* * Distribution * ******************************************************************************* TXS 1.2 is copyrighted by myself : (c) Copyright 1990, 1991 Loewy Ron, I encourage you try this program, and use it at your own will. Please refer to the ORDER.TXT file supplied for registration information. ******************************************************************************* * Contact * ******************************************************************************* Contact : Loewy Ron, 9 Haneveem st. Herzeliya, 46465 ISRAEL. (You can contact me for other "Programming" issues as well.) Other public-domain, freeware and shareware programs by the same author include : JM10 : Jumpin' math - a popup scientific calculator. APP17 : Application programmable pilot - Menu system. 3D110 : WWToolKit 3D demo applocation. (with Ishai Ben-Aroya). WWToolKit : OOPS GUI Turbo-Pascal library. (with Ishai Ben-Aroya). MONITOR : Popup memory monitor. RPTP13 : Ron's Print to Printer WRPTP13 : Ron's Print to Printer for Windows. and some other packages. Programming tools - MOUSLIB4 : Event driven TP6.0 mouse unit. TPDESQ11 : DESQview interface for TP6.0 KBDHDR30 : Keyboard symbolic header, ungetch routine. ******************************************************************************* * History * ******************************************************************************* Beta-Version 0.9 - Jan. 1991, Internal use. Version 1.0 - Feb. 1991, first public release. Version 1.1 - Mar. 1991, first DESQview aware version. - Fixed dialog box bug with text-fields update after mouse events in the middle of field editing. - End key reaches text end in text fields, not field end. - Fixed kbd systems bug with no-window non-hotkey freeze. - Added Command log window. - Fixed Remove file bug - updates dictionary file properly. - Added kbd support in dialog boxes to mouse users. - DESQview aware, can be run in a DESQview window. Version 1.2 - Jun. 1991, Maintenance release - Fixed bug : mouse users can not erase status line any more. - Nicer drop shadows on color screens. - Added Real Time clock. - Added cmdWin enhanced command log option from the system menu, please look at the command section for the technical differences between the Command and cmdWin entries in the system menu. - New colors to menubar, using the non-blink option of ega/vga screens. ******************************************************************************* * Credits * ******************************************************************************* TXS was written using Turbo-Pascal 6.0 (Copyright - Borland Intl'). E.T. Floyd wrote the DDJ published DICT unit, I used the ideas in this unit to create TXS, and was helped by the published source code, but My dictionary uses different hash algorithm. ( I saw that in DDJ Jan. 1991 MR. Floyd answered a letter regarding the hash algorithm. ), I removed some of the code I did not need from the DICT unit, and added the ability to remove keys from the dictionary. 4DOS, and SHELL2E are copyrights of J.P. Software. DESQview is a copyright of Quarterdeck Office Systems. Windows is a copyright of Microsoft corp. Noa Nitzan helped me to pick the color selection for TXS (as well as APP), and I'm thankful for her help. Version 1.2 implemented a real-time clock that was rewritten in assembly from an idea I received after looking at a TP code written by Stefan Tritscher. Version 1.2 implemeted the enhanced cmdWin command log after looking in the assembly code supplied with execws 1.5 from Turbo Power and applying it to my INT2E interface . Roby Gilad showed me the bug about font-size detected on some VGA screens, and offered the mathematic logix substitution operators that were added on version 2.0 Any products mentioned are copyrights, or trademarks of their respective owners.