62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
// -*- C++ -*-
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/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
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Written by James Clark (jjc@jclark.com)
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This file is part of groff.
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groff is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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groff is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with groff; see the file COPYING. If not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <string.h>
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#include <ctype.h>
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#include "cset.h"
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#include "stringclass.h"
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extern void change_filename(const char *);
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extern void change_lineno(int);
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int interpret_lf_args(const char *p)
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{
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while (*p == ' ')
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p++;
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if (!csdigit(*p))
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return 0;
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int ln = 0;
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do {
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ln *= 10;
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ln += *p++ - '0';
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} while (csdigit(*p));
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if (*p != ' ' && *p != '\n' && *p != '\0')
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return 0;
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while (*p == ' ')
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p++;
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if (*p == '\0' || *p == '\n') {
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change_lineno(ln);
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return 1;
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}
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for (const char *q = p;
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*q != '\0' && *q != ' ' && *q != '\n' && *q != '\\';
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q++)
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;
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string tem(p, q - p);
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while (*q == ' ')
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q++;
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if (*q != '\n' && *q != '\0')
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return 0;
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tem += '\0';
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change_filename(tem.contents());
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change_lineno(ln);
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return 1;
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}
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