YGrep Search Engine v7.05        12 March 2000      (C) Yves Roumazeilles


The YGrep Search Engine is a text search library to be used with any
kind of Windows application. It has two possibilities:

- approximative search based on Baeza-Yates algorithm to find a pattern
which is only partly known (also known as search with erroneous
patterns). For example, you can search for "pattern" with 1 error (at
most) and it will match "pattern", "pittern" and "Pattern" while
stepping over "lantern" (2 errors) or "paattern" (insertions are not
errors).

- search modelled on the Unix utility named GREP. It is particularly
useful for complex searching with the help of its specific search
"language" to describe the pattern you look for. For example, you can
search for "^pattern" to look for "pattern" at the beginning of a line;
or for "[pl]a[nt]tern" to look for either "pattern" or "lantern". Look
into the Help file for an extensive description of the pattern language.

- soundex-based search where text is matched against patterns following
a presupposed law helping in recognizing very poorly written english
words (more simply put: by collapsing similar sounds into common
sonorities).

They are particularly useful to improve greatly the search capability of
an existing tool such as a text editor, a data base search engine, etc.

As a whole, the YGrep Search Engine contains nice things like:
- powerful search and substitute functions for C/C++ programmers
- their simpler and more usable counter-parts for FoxPro, Visual Basic
  users.
- file operations for immediate application
- combined search operation (boolean operators) for the power
  user/programmer
- optional error messages/dialog-boxes for high-end applications
- free bonus YFind search application (similar to grep(1) from Unix)
- interface for such languages as Visual Basic, Delphi 2.0, Borland and
  Microsoft C/C++ compilers, etc.


The Windows help file gives detailed on-line information about using it.
It is complemented by the printed reference manual the registered user
will receive.

Minimal File List:

   YGREP32.DLL  Basic DLL (for 32-bits package only)
   YGREP.HLP    Help for programmer (function description)
   YGREP.TXT    This file
   YGREP.H      For C programmers
   BITLIST.H
   YGREPINT.PAS For Delphi programmers
   YGREP32.BAS  For Visual Basic programmers
   YGREP.LIB    Interface file for Visual C++
   YGREPB.DEF   Application definition file for other environments

   CLUSTER.TXT  Description of the ClusterView Windows application
   BITLIST.TXT  Description of the BitList Engine
   ORDER.TXT    Minimal order form


To install The YGrep Search Engine, simply put the files YGREP32.DLL and
YGREP.HLP in any directory already included in your path (C:\WINDOWS
suggested). If you already have an earlier version of the YGrep Search
Engine, replace its old YGREP.DLL file by the new one.

Place YGREP.H, and BITLIST.H in your include file directory
(see your compiler documentation) and YGREP.LIB in your library
directory (see your compiler/linker documentation).

If Windows cannot find the DLL when the application is run, make sure it
is in a directory on your path, and try again.

Borland users could profit from looking into the file BORLAND.TXT.



The YGrep Search Engine is shareware. It it not Public Domain or Free. 
See the help file for shareware information and extensive description of
the registration steps (including a number of registration sites
accepting 800-calls or credit cards).

If you cannot find the Help file and its registration forms, use the
minimal form file ORDER.DOC and mail it with your payment to the address
shown.


If you find the YGrep Search Engine useful, do the decent thing and register!

In return you will receive (for a Single User license):
	- the full YGrep Search Engine (in its latest version), with
	  Windows 32-bit libraries,
	- the reference and user manuals (15000+ words of advice,
          examples, and information) in Adobe PDF files,
	- source code of the help files which can be modified to build
	  your own application help file,
	- source code for some useful resources that can be included in
	  your own application,
	- source code for our test program,
	- Visual Basic and Delphi header files,
	- a registration number to identify yourself,
	- support thru Email, phone and Fax.

When you register the full Developer Kit, you will ADDITIONALLY
receive:
	- an **UNLIMITED NUMBER** of target licenses,
	- the printed reference and user manuals (15000+ words of
          advice, examples, and information),
	- complete **SOURCE** code of the library, which will allow
	  porting to other Operating Systems (including MS-DOS which
	  already is in the Makefiles)
	- Makefiles for Visual C++ 4.xx, Borland C++ 4.xx, etc.
	- complete **SOURCE** code of the YFind application (including a
	  public domain version of GETOPT.C), the best
	  demonstration/sample for the file-based functions,
	- free automatic access to all the future minor releases of
	  the library including all bug removal,
	- and a 20% reduction on the registration fee for the major
	  releases.

When you register the unlimited lifetime upgrade, you will receive:
	- anything in a normal upgrade,
	- automatic inclusion into our program of permanent upgrades.
	  No need to worry about upgrades/renewals. Anytime, we produce
	  a new version you are entitled to the free upgrade.
	- any new minor version will be distributed by email,
	- any new major version will be distributed by surface mail (with
	  the option of receiving an email copy).
