* src/libs/libgroff/tmpfile.cpp [__MSDOS__, _Win32]
[s-roff.git] / src / libs / libgroff / lf.cpp
blob34272c7d03d0cfee1f4d08087651995d13869ee0
1 // -*- C++ -*-
2 /* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
3 Written by James Clark (jjc@jclark.com)
5 This file is part of groff.
7 groff is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
10 version.
12 groff is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
17 You should have received a copy of the GNU General Public License along
18 with groff; see the file COPYING. If not, write to the Free Software
19 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 #include <string.h>
22 #include <ctype.h>
23 #include "cset.h"
24 #include "stringclass.h"
26 extern void change_filename(const char *);
27 extern void change_lineno(int);
29 int interpret_lf_args(const char *p)
31 while (*p == ' ')
32 p++;
33 if (!csdigit(*p))
34 return 0;
35 int ln = 0;
36 do {
37 ln *= 10;
38 ln += *p++ - '0';
39 } while (csdigit(*p));
40 if (*p != ' ' && *p != '\n' && *p != '\0')
41 return 0;
42 while (*p == ' ')
43 p++;
44 if (*p == '\0' || *p == '\n') {
45 change_lineno(ln);
46 return 1;
48 const char *q;
49 for (q = p;
50 *q != '\0' && *q != ' ' && *q != '\n' && *q != '\\';
51 q++)
53 string tem(p, q - p);
54 while (*q == ' ')
55 q++;
56 if (*q != '\n' && *q != '\0')
57 return 0;
58 tem += '\0';
59 change_filename(tem.contents());
60 change_lineno(ln);
61 return 1;