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- /*
- * Usage - colrm from_col to_col < printable_ascii > revised_ascii
- *
- * COLRM Removes the specified range of columns from each line of an
- * ASCII file. This is a clone of the Unix "colrm" utility.
- *
- * input: A printable ASCII file with less than 512 characters per
- * line. Columns number from 1 upward.
- *
- * output: The same number of lines, but with one segment of columns
- * removed from each line.
- *
- * writeup: MIR TUTORIAL ONE, topic 7
- *
- * Written: Douglas Lowry Jun 21 90
- * Modified: Douglas Lowry Feb 15 92
- * Copyright (C) 1992 Marpex Inc.
- *
- * The MIR (Mass Indexing and Retrieval) Tutorials explain detailed
- * usage and co-ordination of the MIR family of programs to analyze,
- * prepare and index databases (small through gigabyte size), and
- * how to build integrated retrieval software around the MIR search
- * engine. The fifth of the five MIR tutorial series explains how
- * to extend indexing capability into leading edge search-related
- * technologies. For more information, GO IBMPRO on CompuServe;
- * MIR files are in the DBMS library. The same files are on the
- * Canada Remote Systems BBS. A diskette copy of the Introduction
- * is available by mail ($10 US... check, Visa or Mastercard);
- * diskettes with Introduction, Tutorial ONE software and the
- * shareware Tutorial ONE text cost $29. Shareware registration
- * for a tutorial is also $29.
- *
- * E-mail...
- * Compuserve 71431,1337
- * Internet doug.lowry%canrem.com
- * UUCP canrem!doug.lowry
- * Others: doug.lowry@canrem.uucp
- *
- * FAX... 416 963-5677
- *
- * "Snail mail"... Douglas Lowry, Ph.D.
- * Marpex Inc.
- * 5334 Yonge Street, #1102
- * North York, Ontario
- * Canada M2N 6M2
- *
- * Related database consultation and preparation services are
- * available through:
- * Innotech Inc., 2001 Sheppard Avenue E., Suite #118,
- * North York, Ontario Canada M2J 4Z7
- * Tel. 416 492-3838 FAX 416 492-3843
- *
- * This program is free software; you may 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
- * (file 05LICENS) along with this program; if not, write to the
- * Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
- * USA.
- */
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <dos.h>
- #include <ctype.h>
- #include <direct.h>
-
- #define MAX_BYTES 512
-
- #define repeat for(;;)
-
- typedef enum _bool
- { FALSE = 0, TRUE = 1 } Bool;
- /*
- * declarations
- */
-
- void Usage_(), process();
- char *Cmdname_() { return( "colrm" ); }
-
- /*
- * MAIN
- */
-
- main( argc, argv )
- int argc;
- char **argv;
- {
- int to, from ;
-
- if( argc != 3 || !isdigit( argv[1][0] ))
- Usage_();
-
- from = atoi( argv[1] );
- to = atoi( argv[2] );
- if( to < from )
- to = from ;
-
- process( from, to );
-
- exit( 0 );
- }
- /*
- * Usage
- */
- void
- Usage_()
- {
- fprintf( stderr,
- "\nusage: %s from_col to_col < printable_ascii > revised_ascii\n\n\
- Removes the specified range of columns from each line of an\n\
- ASCII file. This is a clone of the Unix \"colrm\" utility.\n\n",
- Cmdname_() ) ;
- fprintf( stderr,
- "input: A printable ASCII file with less than 512 characters per\n\
- line. Columns number from 1 upward.\n\n\
- output: The same number of lines, but with one segment of columns\n\
- removed from each line.\n\n\
- writeup: MIR TUTORIAL ONE, topic 7\n\n" );
- exit( 1 ) ;
- }
- /*
- * PROCESS
- */
- void
- process( from_col, to_col )
- int from_col, to_col ;
- {
- char line_in[ MAX_BYTES ] ;
- int len, i ;
- Bool after_nl; /* after a new line */
-
- after_nl = TRUE;
-
- while( gets( line_in ) != NULL )
- {
- len = strlen( line_in );
- if( len > MAX_BYTES - 2 )
- {
- fprintf( stderr, "FATAL... Line exceeds %d bytes.\n\n",
- len );
- exit( 1 );
- }
- for( i = 0 ; ( i < from_col - 1 && i < len ) ; i++ )
- putchar( line_in[i] );
- for( i = to_col ; i < len ; i++ )
- putchar( line_in[i] );
- putchar( '\n' );
- }
-
- return ;
- }