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Rewrite from scratch, as print-copyr.c.

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This commit is contained in:
Paul Eggert
2001-09-21 22:19:09 +00:00
parent 7a1b6cfa67
commit 4b5d60ef38
1 changed files with 24 additions and 57 deletions
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81
lib/print-copyr.c
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@@ -1,4 +1,4 @@
/* copysym.c -- Return a copyright symbol suitable for the current locale.
/* Print a copyright notice suitable for the current locale.
Copyright (C) 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
@@ -21,65 +21,32 @@
# include <config.h>
#endif
#include <stddef.h>
#include "unicodeio.h"
#include "print-copyr.h"
#if HAVE_ICONV
# include <iconv.h>
#include <stdio.h>
# if ! USE_INCLUDED_LIBINTL && HAVE_LANGINFO_CODESET
# include <langinfo.h>
# endif
#define COPYRIGHT_SIGN 0x00A9
# if HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif
/* Print "(C)". */
#include "copysym.h"
/* Store into BUF (of size BUFSIZE) a representation of the copyright
symbol (C-in-a-circle) that is a valid text string for the current
locale. Return BUF if successful, and a pointer to some other
string otherwise. */
char const *
copyright_symbol (char *buf, size_t bufsize)
static int
print_parenthesized_c (unsigned int code, void *callback_arg)
{
#if HAVE_ICONV
char const *outcharset = getenv ("OUTPUT_CHARSET");
if (! (outcharset && *outcharset))
{
#if USE_INCLUDED_LIBINTL
extern char const *locale_charset (void);
outcharset = locale_charset ();
#else
# if HAVE_LANGINFO_CODESET
outcharset = nl_langinfo (CODESET);
# endif
#endif
}
if (*outcharset)
{
iconv_t conv = iconv_open (outcharset, "UTF-8");
if (conv != (iconv_t) -1)
{
static char const copyright_utf_8[] = "\302\251";
char ICONV_CONST *inptr = (char ICONV_CONST *) &copyright_utf_8;
size_t inleft = sizeof copyright_utf_8;
char *outptr = buf;
size_t chars = iconv (conv, &inptr, &inleft, &outptr, &bufsize);
iconv_close (conv);
if (chars != (size_t) -1)
return buf;
}
}
#endif
/* "(C)" is the best we can do in ASCII. */
return "(C)";
FILE *stream = callback_arg;
return fputs ("(C)", stream);
}
/* Print "Copyright (C) " followed by NOTICE and then a newline,
transliterating "(C)" to an actual copyright sign (C-in-a-circle)
if possible. */
void
print_copyright (char const *notice)
{
fputs ("Copyright ", stdout);
unicode_to_mb (COPYRIGHT_SIGN, print_unicode_success, print_parenthesized_c,
stdout);
fputc (' ', stdout);
puts (notice);
}