/contrib/groff/src/libs/libgroff/lf.cpp
https://bitbucket.org/freebsd/freebsd-head/ · C++ · 63 lines · 40 code · 4 blank · 19 comment · 30 complexity · ce82daa26ca45fcfc31d0f8858da7249 MD5 · raw file
- // -*- C++ -*-
- /* Copyright (C) 1989, 1990, 1991, 1992, 2004 Free Software Foundation, Inc.
- Written by James Clark (jjc@jclark.com)
- This file is part of groff.
- groff 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.
- groff 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 groff; see the file COPYING. If not, write to the Free Software
- Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
- #include <ctype.h>
- #include "lib.h"
- #include "cset.h"
- #include "stringclass.h"
- extern void change_filename(const char *);
- extern void change_lineno(int);
- int interpret_lf_args(const char *p)
- {
- while (*p == ' ')
- p++;
- if (!csdigit(*p))
- return 0;
- int ln = 0;
- do {
- ln *= 10;
- ln += *p++ - '0';
- } while (csdigit(*p));
- if (*p != ' ' && *p != '\n' && *p != '\0')
- return 0;
- while (*p == ' ')
- p++;
- if (*p == '\0' || *p == '\n') {
- change_lineno(ln);
- return 1;
- }
- const char *q;
- for (q = p;
- *q != '\0' && *q != ' ' && *q != '\n' && *q != '\\';
- q++)
- ;
- string tem(p, q - p);
- while (*q == ' ')
- q++;
- if (*q != '\n' && *q != '\0')
- return 0;
- tem += '\0';
- change_filename(tem.contents());
- change_lineno(ln);
- return 1;
- }