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Diffstat (limited to 'app/tools/addcrlf.c')
| -rw-r--r-- | app/tools/addcrlf.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/app/tools/addcrlf.c b/app/tools/addcrlf.c new file mode 100644 index 0000000..d36310e --- /dev/null +++ b/app/tools/addcrlf.c @@ -0,0 +1,242 @@ +/** + * \file addcrlf.c Convert text between DOS, UNIX and MAC + * + * $Header: /home/dmarkle/xtrkcad-fork-cvs/xtrkcad/app/tools/addcrlf.c,v 1.7 2007-02-13 19:46:25 m_fischer Exp $ + * + * This is heavily based on flip by Craig Stuart Sapp <craig@ccrma.stanford.edu> + * Web Address: http://www-ccrma.stanford.edu/~craig/utility/flip/flip.cpp + */ + +/* XTrkCad - Model Railroad CAD + * Copyright (C) Marin Fischer 2006 + * + * 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. + */ + +#include <stdlib.h> +#include <stdio.h> + +void exitUsage( char *cmd ); +void translateToDos( char *infile, char *outfile ); +void translateToUnix(char* infilename, char *outfilename); +void determineType(char* filename); + +int +main( int argc, char ** argv) +{ + char option; + + if( argc < 2 ) + exitUsage(argv[0]); + + if( argv[1][0] != '-' &&argv[1][0] != '/' ) + exitUsage(argv[0]); + + option = argv[1][1]; + + if (!(option == 'u' || option == 'd' || option == 't' || option =='h' )) { + exitUsage(argv[0]); + } + + if( !((option == 't' && argc == 3)||(option !='t' && argc==4)||( option =='h' ))) { + exitUsage(argv[0]); + } + switch( option ) + { + case 'd': + translateToDos(argv[2], argv[3]); + break; + case 'u': + translateToUnix(argv[2], argv[3]); + break; + case 'm': +/* translateToMacintosh(argv[i+2]); */ + break; + case 'h': + exitUsage(argv[0]); + break; + default: + determineType(argv[2]); + break; + } + return 0; +} + + + +void +translateToDos(char* infilename, char *outfilename) +{ + FILE *in, *out; + char ch, lastch; + int peekch; + + in = fopen( infilename, "rb" ); + if (!in) { + printf( "Error: cannot find file: %s\n", infilename ); + return; + } + + out = fopen( outfilename, "wb" ); + if (!out) { + printf( "Error: cannot open file: %s\n", outfilename ); + return; + } + + ch = getc( in ); + lastch = ch; + + while( !feof( in )) + { + if (ch == 0x0a && lastch != 0x0d) { + // convert newline from Unix to MS-DOS + putc( (char)0x0d, out ); + putc( ch, out ); + lastch = ch; + } else { + if (ch == 0x0d) { // convert newline from Mac to MS-DOS + peekch = getc( in ); // lookahead for following character + ungetc( peekch, in ); + + if (peekch != 0x0a) { + putc( ch, out ); + putc( (char)0x0a, out ); + lastch = 0x0a; + } else { + lastch = 0x0d; + // Bug fix here reported by Shelley Adams: running -d + // twice in a row was generating Unix style newlines + // without the following statement: + putc( 0x0d, out ); + } + + } else { + putc( ch, out ); + lastch = ch; + } + } + ch = getc( in ); + } + + fclose( in ); + fclose( out ); +} + +void +translateToUnix(char* infilename, char *outfilename) +{ + FILE *in, *out; + char ch, lastch; + + in = fopen( infilename, "rb" ); + if (!in) { + printf( "Error: cannot find file: %s\n", infilename ); + return; + } + + out = fopen( outfilename, "wb" ); + if (!out) { + printf( "Error: cannot open file: %s\n", outfilename ); + return; + } + + ch = getc( in ); + lastch = ch; + + while( !feof( in )) + { + if (ch == 0x0d) { + putc( (char)0x0a, out ); + } else { + if (ch == 0x0a) { + if (lastch == 0x0d) { + // do nothing: already converted MSDOS newline to Unix form + } else { + putc( (char)0x0a, out ); + } + } else { + putc( ch, out ); + } + } + lastch = ch; + ch = getc( in ); + } + + fclose( in ); + fclose( out ); +} + +void +determineType(char* filename) +{ + FILE *in; + int ch; + int crcount = 0; + int lfcount = 0; + + in = fopen( filename, "rb" ); + if (!in) { + printf( "Error: cannot find file: %s\n", filename ); + return; + } + + ch = getc( in ); + if( ch == EOF ) { + printf( "Error: file could not be read: %s\n", filename ); + return; + } + + while( !feof( in )) + { + if (ch == 0x0d) { + crcount ++; + } else { + if (ch == 0x0a) { + lfcount++; + } + } + ch = getc( in ); + } + + fclose( in ); + + if ((lfcount == crcount) && (crcount != 0)) { + printf("%s : DOS\n", filename ); + } else if ((lfcount > 0) && (crcount == 0)) { + printf("%s : UNIX\n", filename ); + } else if ((lfcount == 0) && (crcount > 0)) { + printf("%s : MAC\n", filename ); + } else if ((lfcount > 0) && (crcount > 0)) { + printf("%s : MIXED\n", filename ); + } else { + printf("%s : UNKNOWN\n", filename ); + } +} + +void +exitUsage( char* commandName ) +{ + printf( "\nUsage: %s [-h] | [-t infile] | [[-u|-d|-m] infile outfile]\n" + " Converts an ASCII file between Unix, MS-DOS/Windows, or Macintosh newline formats\n\n" + " Options: \n" + " -u = convert file to Unix newline format (newline)\n" + " -d = convert file to MS-DOS/Windows newline format (linefeed + newline)\n" + " -m = convert file to Macintosh newline format (linefeed)\n" + " -t = display current file type, no file modifications\n" + " -h = show this help\n", + commandName ); + + exit(1); +} |