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/*
* sccsname.h: Part of GNU CSSC.
*
*
* Copyright (C) 1997,2001,2007,2008 Free Software Foundation, Inc.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
* CSSC was originally Based on MySC, by Ross Ridge, which was
* placed in the Public Domain.
*
*
* Defines the class sccs_name.
*
* @(#) CSSC sccsname.h 1.1 93/11/09 17:17:50
*
*/
#ifndef CSSC__SCCSNAME_H__
#define CSSC__SCCSNAME_H__
#ifdef __GNUC__
#pragma interface
#endif
mystring base_part(const mystring &name);
mystring canonify_filename(const char* fname);
class sccs_name
{
mystring sname; // name of the s. file.
mystring gname;
// We hold separate strings for the part before
// and the part after the character that changes:
// dir/s.foo.c
// dir/p.foo.c
// dir/z.foo.c
// dir/l.foo.c
// In these cases, name_front is "dir/" and name_rear is ".foo.c".
mystring name_front, name_rear;
file_lock *lock_ptr;
int lock_cnt;
void create();
void
destroy()
{
if (lock_cnt > 0)
delete lock_ptr;
}
sccs_name &operator =(sccs_name const &);
sccs_name(sccs_name const &);
public:
static int valid_filename(const char *name);
/* The initialisers on the following line have been re-ordered
* to follow the declaration order.
*/
sccs_name(): lock_ptr(0), lock_cnt(0) {}
sccs_name &operator =(const mystring& n); /* undefined */
int valid() const { return sname.length(); }
void make_valid();
const char * c_str() const { return sname.c_str(); }
mystring sub_file(char insertme) const;
mystring sfile() const { return sname; }
mystring gfile() const { return gname; }
mystring lfile() const;
mystring pfile() const { return sub_file('p'); }
mystring qfile() const { return sub_file('q'); }
mystring xfile() const { return sub_file('x'); }
mystring zfile() const { return sub_file('z'); }
int
lock()
{
if (lock_cnt++ == 0)
{
mystring zf = zfile();
lock_ptr = new file_lock(zf);
return lock_ptr->failed();
}
return 0;
}
void
unlock()
{
if (--lock_cnt == 0)
{
delete lock_ptr;
}
}
~sccs_name()
{
destroy();
}
};
#endif /* __SCCSNAME_H__ */
/* Local variables: */
/* mode: c++ */
/* End: */
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