-/*
- * Copyright (C) 1994-1997, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: main.c,v $
- * Revision 1.52 1997-10-31 12:34:04 adam
- * Added missing nmem_init.
- *
- * Revision 1.51 1997/10/27 14:33:05 adam
- * Moved towards generic character mapping depending on "structure"
- * field in abstract syntax file. Fixed a few memory leaks. Fixed
- * bug with negative integers when doing searches with relational
- * operators.
- *
- * Revision 1.50 1997/09/25 14:55:52 adam
- * Minor changes.
- *
- * Revision 1.49 1997/09/17 12:19:15 adam
- * Zebra version corresponds to YAZ version 1.4.
- * Changed Zebra server so that it doesn't depend on global common_resource.
- *
- * Revision 1.48 1997/09/09 13:38:08 adam
- * Partial port to WIN95/NT.
- *
- * Revision 1.47 1997/02/12 20:39:46 adam
- * Implemented options -f <n> that limits the log to the first <n>
- * records.
- * Changed some log messages also.
- *
- * Revision 1.46 1997/02/10 10:20:13 adam
- * Flag fileVerboseFlag set to 0 (default).
- *
- * Revision 1.45 1996/11/08 11:10:26 adam
- * Buffers used during file match got bigger.
- * Compressed ISAM support everywhere.
- * Bug fixes regarding masking characters in queries.
- * Redesigned Regexp-2 queries.
- *
- * Revision 1.44 1996/10/29 14:09:48 adam
- * Use of cisam system - enabled if setting isamc is 1.
- *
- * Revision 1.43 1996/06/06 12:08:42 quinn
- * Added showRecord function
- *
- * Revision 1.42 1996/05/31 09:07:01 quinn
- * Work on character-set handling
- *
- * Revision 1.41 1996/05/14 14:04:34 adam
- * In zebraidx, the 'stat' command is improved. Statistics about ISAM/DICT
- * is collected.
- *
- * Revision 1.40 1996/04/26 10:00:23 adam
- * Added option -V to zebraidx to display version information.
- * Removed stupid warnings from file update.
- *
- * Revision 1.39 1996/04/09 10:05:21 adam
- * Bug fix: prev_name buffer possibly too small; allocated in key_file_init.
- *
- * Revision 1.38 1996/03/26 16:01:14 adam
- * New setting lockPath: directory of various lock files.
- *
- * Revision 1.37 1996/03/19 12:43:26 adam
- * Bug fix: File update traversal didn't handle trailing slashes correctly.
- * Bug fix: Update of sub directory groups wasn't handled correctly.
- *
- * Revision 1.36 1996/02/12 18:45:37 adam
- * New fileVerboseFlag in record group control.
- *
- * Revision 1.35 1996/02/12 15:56:11 adam
- * New code command: unread.
- *
- * Revision 1.34 1996/02/07 14:06:39 adam
- * Better progress report during register merge.
- * New command: clean - removes temporary shadow files.
- *
- * Revision 1.33 1996/02/06 17:11:18 adam
- * Minor changes.
- *
- * Revision 1.32 1996/02/01 20:50:04 adam
- * Bug fix: zebraIndexUnlock was always called even though zebraIndexLock
- * was never called - happens when no commands are specified.
- *
- * Revision 1.31 1996/01/08 19:15:46 adam
- * New input filter that works!
- *
- * Revision 1.30 1995/12/12 16:00:59 adam
- * System call sync(2) used after update/commit.
- * Locking (based on fcntl) uses F_EXLCK and F_SHLCK instead of F_WRLCK
- * and F_RDLCK.
- *
- * Revision 1.29 1995/12/11 11:43:30 adam
- * Locking based on fcntl instead of flock.
- * Setting commitEnable removed. Command line option -n can be used to
- * prevent commit if commit setting is defined in the configuration file.
- *
- * Revision 1.28 1995/12/08 16:22:56 adam
- * Work on update while servers are running. Three lock files introduced.
- * The servers reload their registers when necessary, but they don't
- * reestablish result sets yet.
- *
- * Revision 1.27 1995/12/07 17:38:47 adam
- * Work locking mechanisms for concurrent updates/commit.
- *
- * Revision 1.26 1995/12/06 12:41:23 adam
- * New command 'stat' for the index program.
- * Filenames can be read from stdin by specifying '-'.
- * Bug fix/enhancement of the transformation from terms to regular
- * expressons in the search engine.
- *
- * Revision 1.25 1995/12/01 16:24:39 adam
- * Commit files use separate meta file area.
- *
- * Revision 1.24 1995/11/30 17:01:38 adam
- * New setting commitCache: points to commit directories/files.
- * New command commit: commits at the end of a zebraidx run.
- *
- * Revision 1.23 1995/11/30 08:34:31 adam
- * Started work on commit facility.
- * Changed a few malloc/free to xmalloc/xfree.
- *
- * Revision 1.22 1995/11/28 09:09:42 adam
- * Zebra config renamed.
- * Use setting 'recordId' to identify record now.
- * Bug fix in recindex.c: rec_release_blocks was invokeded even
- * though the blocks were already released.
- * File traversal properly deletes records when needed.
- *
- * Revision 1.21 1995/11/27 14:27:39 adam
- * Renamed 'update' command to 'dir'.
- *
- * Revision 1.20 1995/11/27 13:58:53 adam
- * New option -t. storeStore data implemented in server.
- *
- * Revision 1.19 1995/11/25 10:24:06 adam
- * More record fields - they are enumerated now.
- * New options: flagStoreData flagStoreKey.
- *
- * Revision 1.18 1995/11/22 17:19:17 adam
- * Record management uses the bfile system.
- *
- * Revision 1.17 1995/11/21 15:01:16 adam
- * New general match criteria implemented.
- * New feature: document groups.
- *
- * Revision 1.16 1995/11/20 11:56:27 adam
- * Work on new traversal.
- *
- * Revision 1.15 1995/11/01 16:25:51 quinn
- * *** empty log message ***
- *
- * Revision 1.14 1995/10/17 18:02:09 adam
- * New feature: databases. Implemented as prefix to words in dictionary.
- *
- * Revision 1.13 1995/10/10 12:24:39 adam
- * Temporary sort files are compressed.
- *
- * Revision 1.12 1995/10/04 16:57:20 adam
- * Key input and merge sort in one pass.
- *
- * Revision 1.11 1995/09/29 14:01:45 adam
- * Bug fixes.
- *
- * Revision 1.10 1995/09/28 14:22:57 adam
- * Sort uses smaller temporary files.
- *
- * Revision 1.9 1995/09/14 07:48:24 adam
- * Record control management.
- *
- * Revision 1.8 1995/09/06 16:11:18 adam
- * Option: only one word key per file.
- *
- * Revision 1.7 1995/09/05 15:28:39 adam
- * More work on search engine.
- *
- * Revision 1.6 1995/09/04 12:33:43 adam
- * Various cleanup. YAZ util used instead.
- *
- * Revision 1.5 1995/09/04 09:10:39 adam
- * More work on index add/del/update.
- * Merge sort implemented.
- * Initial work on z39 server.
- *
- * Revision 1.4 1995/09/01 14:06:36 adam
- * Split of work into more files.
- *
- * Revision 1.3 1995/09/01 10:57:07 adam
- * Minor changes.
- *
- * Revision 1.2 1995/09/01 10:30:24 adam
- * More work on indexing. Not working yet.
- *
- * Revision 1.1 1995/08/31 14:50:24 adam
- * New simple file index tool.
- *
- */