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- /* Conversion of files between different charsets and usages.
- Copyright (C) 1990, 1993, 1994 Free Software Foundation, Inc.
- Francois Pinard <pinard@iro.umontreal.ca>, 1988.
-
- 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #include "recode.h"
-
- static int
- file_ascii_flat (const STEP *step, FILE *input_file, FILE *output_file)
- {
- int input_char; /* current character */
- int temp_char; /* look ahead character */
-
- input_char = getc (input_file);
- while (1)
- switch (input_char)
- {
- case EOF:
- return 0;
-
- case '\n':
- case '\t':
- putc (input_char, output_file);
- input_char = getc (input_file);
- break;
-
- case '\b':
- input_char = getc (input_file);
- switch (input_char)
- {
- case '\'':
- case '`':
- case '^':
- case '"':
- case '~':
- case ',':
- case '_':
- input_char = getc (input_file);
- break;
-
- default:
- putc ('\b', output_file);
- }
- break;
-
- case '\'':
- case '`':
- case '^':
- case '"':
- case '~':
- case ',':
- case '_':
- temp_char = getc (input_file);
- if (temp_char == '\b')
- input_char = getc (input_file);
- else
- {
- putc (input_char, output_file);
- input_char = temp_char;
- }
- break;
-
- default:
- if (input_char & (1 << 7))
- {
- putc ('M', output_file);
- putc ('-', output_file);
- input_char &= ~(~0 << 7);
- }
- if (input_char < ' ' || input_char == ~(~0 << 7))
- {
- putc ('^', output_file);
- input_char ^= (1 << 6);
- }
- putc (input_char, output_file);
- input_char = getc (input_file);
- }
- }
-
- void
- module_flat (void)
- {
- declare_step ("ASCII-BS", "flat", MANY_TO_MANY, NULL, file_ascii_flat);
- }
-