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/*
* fhist - file history and comparison tools
* Copyright (C) 1991-1994, 1998, 2001, 2002, 2008 Peter Miller
*
* 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/>.
*/
#include <ac/stdio.h>
#include <arglex.h>
#include <error.h>
#include <help.h>
#include <progname.h>
#include <quit.h>
#include <str.h>
#include <trace.h>
#include <version.h>
#include <version_stmp.h>
static void
version_copyright(void)
{
static char *text[] =
{
"",
"This program is derived from a work",
"Copyright (C) 1990 David I. Bell.",
"",
"The %s program comes with ABSOLUTELY NO WARRANTY;",
"for details use the '%s -VERSion License' command.",
"The %s program is free software, and you are welcome",
"to redistribute it under certain conditions; for",
"details use the '%s -VERSion License' command.",
};
char **cpp;
char *progname;
progname = progname_get();
printf("%s version %s\n", progname, version_stamp());
printf("Copyright (C) %s Peter Miller;\n", copyright_years());
for (cpp = text; cpp < ENDOF(text); ++cpp)
{
printf(*cpp, progname);
fputc('\n', stdout);
}
}
static void
version_license(void)
{
help("fhist_lic", (void (*)(void))0);
}
typedef struct table_ty table_ty;
struct table_ty
{
char *name;
void (*func)(void);
};
static table_ty table[] =
{
{ "Copyright", version_copyright, },
{ "License", version_license, },
};
static void
usage(void)
{
char *progname;
progname = progname_get();
fprintf(stderr, "Usage: %s -VERSion [ name ]\n", progname);
fprintf(stderr, " %s -Help\n", progname);
quit(1);
}
void
version(void)
{
void (*func)(void);
char *name;
trace(("version()\n{\n"));
arglex();
name = 0;
while (arglex_token != arglex_token_eoln)
{
switch (arglex_token)
{
default:
bad_argument(usage);
continue;
case arglex_token_string:
if (name)
fatal_raw("too many info names");
name = arglex_value.alv_string;
break;
}
arglex();
}
if (name)
{
int nhit;
table_ty *tp;
string_ty *s1;
string_ty *s2;
table_ty *hit[SIZEOF(table)];
int j;
nhit = 0;
for (tp = table; tp < ENDOF(table); ++tp)
{
if (arglex_compare(tp->name, name))
hit[nhit++] = tp;
}
switch (nhit)
{
case 0:
fatal_raw("no info %s", name);
case 1:
break;
default:
s1 = str_from_c(hit[0]->name);
for (j = 1; j < nhit; ++j)
{
s2 = str_format("%S, %s", s1, hit[j]->name);
str_free(s1);
s1 = s2;
}
fatal_raw("info %s ambig (%S)", name, s1);
}
arglex();
func = hit[0]->func;
}
else
func = version_copyright;
func();
trace(("}\n"));
}
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