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/*
* fileiter.cc: Part of GNU CSSC.
*
* Copyright (C) 1997, 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*
* CSSC was originally Based on MySC, by Ross Ridge, which was
* placed in the Public Domain.
*
*
* Members of the class fileiter.
*
*/
#ifdef __GNUC__
#pragma implementation "fileiter.h"
#endif
#include "cssc.h"
#include "sccsname.h"
#include "fileiter.h"
#include "linebuf.h"
#include "my-getopt.h"
#ifdef CONFIG_SCCS_IDS
static const char rcs_id[] = "CSSC $Id: fileiter.cc,v 1.22 2001/09/29 19:39:41 james_youngman Exp $";
#endif
sccs_file_iterator::sccs_file_iterator(const CSSC_Options &opts)
: argv(opts.get_argv() + opts.get_index()),
argc(opts.get_argc() - opts.get_index()),
is_unique(0)
{
if (argc < 1) {
source = NONE;
return;
}
char *first = argv[0];
if (strcmp(first, "-") == 0) {
source = STDIN;
return;
}
#ifndef CONFIG_NO_DIRECTORY
if (first[0] != '\0') {
DIR *dir = opendir(first);
if (dir != NULL) {
const char *slash = NULL;
int len = strlen(first);
#ifdef CONFIG_MSDOS_FILES
if (first[len - 1] != '/' && first[len - 1] != '\\') {
if (strchr(first, '/') == NULL) {
slash = "\\";
} else {
slash = "/";
}
}
#else
if (first[len - 1] != '/') {
slash = "/";
} else {
/* SourceForge bug 121605: Unix coredump in
* mystring::mystring() if the directory
* name contains a trailing slash. Solution
* is to make sure that "slash" is not NULL.
*/
slash = "";
}
#endif
mystring dirname(mystring(first) + mystring(slash));
struct dirent *dent = readdir(dir);
while (dent != NULL) {
mystring name = mystring(dirname) + mystring(dent->d_name, NAMLEN(dent));
if (sccs_name::valid_filename(name.c_str())
&& is_readable(name.c_str())) {
files.add(name);
}
dent = readdir(dir);
}
closedir(dir);
source = DIRECTORY;
pos = 0;
return;
}
}
#endif /* CONFIG_NO_DIRECTORY */
source = ARGS;
is_unique = (1 == argc);
}
int
sccs_file_iterator::unique() const
{
return is_unique;
}
int
sccs_file_iterator::next() {
switch (source) {
case STDIN:
{
cssc_linebuf linebuf;
if (linebuf.read_line(stdin)) {
return 0;
}
mystring s (linebuf.c_str());
name = s.substr(0, s.length()-1u); // chop off the newline.
return 1;
}
#ifndef CONFIG_NO_DIRECTORY
case DIRECTORY:
if (pos < files.length()) {
name = files[pos++];
return 1;
}
return 0;
#endif
case ARGS:
if (argc-- <= 0) {
return 0;
}
name = *argv++;
#ifdef CONFIG_FILE_NAME_GUESSING
if (!name.valid())
{
name.make_valid();
}
#endif
return 1;
default:
abort();
}
return 0;
}
/* Local variables: */
/* mode: c++ */
/* End: */
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