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Cygwin: pty: move codepage evaluation to nlsfuncs.cc
The new function __eval_codepage_from_internal_charset is a simplified version of the former code in fhandler_tty.cc. It probably needs some extension, but the gist is to use knowledge of internals to be as quick as possible. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
Ken Brown
parent
9fddfa3d16
commit
66d8857677
@ -1614,8 +1614,8 @@ fhandler_pty_master::write (const void *ptr, size_t len)
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if (to_be_read_from_pcon () && get_ttyp ()->h_pseudo_console)
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{
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size_t nlen;
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char *buf = convert_mb_str
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(CP_UTF8, &nlen, get_ttyp ()->term_code_page, (const char *) ptr, len);
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char *buf = convert_mb_str (CP_UTF8, &nlen, get_ttyp ()->term_code_page,
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(const char *) ptr, len);
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WaitForSingleObject (input_mutex, INFINITE);
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@ -1782,183 +1782,13 @@ fhandler_pty_common::set_close_on_exec (bool val)
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close_on_exec (val);
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}
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/* This table is borrowed from mintty: charset.c */
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static const struct {
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UINT cp;
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const char *name;
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}
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cs_names[] = {
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{ CP_UTF8, "UTF-8"},
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{ CP_UTF8, "UTF8"},
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{ 20127, "ASCII"},
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{ 20127, "US-ASCII"},
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{ 20127, "ANSI_X3.4-1968"},
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{ 20866, "KOI8-R"},
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{ 20866, "KOI8R"},
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{ 20866, "KOI8"},
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{ 21866, "KOI8-U"},
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{ 21866, "KOI8U"},
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{ 20932, "EUCJP"},
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{ 20932, "EUC-JP"},
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{ 874, "TIS620"},
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{ 874, "TIS-620"},
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{ 932, "SJIS"},
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{ 936, "GBK"},
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{ 936, "GB2312"},
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{ 936, "EUCCN"},
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{ 936, "EUC-CN"},
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{ 949, "EUCKR"},
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{ 949, "EUC-KR"},
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{ 950, "BIG5"},
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{ 0, "NULL"}
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};
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static void
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get_locale_from_env (char *locale)
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{
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const char *env = NULL;
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char lang[ENCODING_LEN + 1] = {0, }, country[ENCODING_LEN + 1] = {0, };
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env = getenv ("LC_ALL");
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if (env == NULL || !*env)
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env = getenv ("LC_CTYPE");
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if (env == NULL || !*env)
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env = getenv ("LANG");
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if (env == NULL || !*env)
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{
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if (GetLocaleInfo (LOCALE_CUSTOM_UI_DEFAULT,
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LOCALE_SISO639LANGNAME,
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lang, sizeof (lang)))
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GetLocaleInfo (LOCALE_CUSTOM_UI_DEFAULT,
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LOCALE_SISO3166CTRYNAME,
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country, sizeof (country));
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else if (GetLocaleInfo (LOCALE_CUSTOM_DEFAULT,
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LOCALE_SISO639LANGNAME,
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lang, sizeof (lang)))
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GetLocaleInfo (LOCALE_CUSTOM_DEFAULT,
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LOCALE_SISO3166CTRYNAME,
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country, sizeof (country));
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else if (GetLocaleInfo (LOCALE_USER_DEFAULT,
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LOCALE_SISO639LANGNAME,
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lang, sizeof (lang)))
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GetLocaleInfo (LOCALE_USER_DEFAULT,
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LOCALE_SISO3166CTRYNAME,
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country, sizeof (country));
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else if (GetLocaleInfo (LOCALE_SYSTEM_DEFAULT,
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LOCALE_SISO639LANGNAME,
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lang, sizeof (lang)))
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GetLocaleInfo (LOCALE_SYSTEM_DEFAULT,
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LOCALE_SISO3166CTRYNAME,
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country, sizeof (country));
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if (strlen (lang) && strlen (country))
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__small_sprintf (lang + strlen (lang), "_%s.UTF-8", country);
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else
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strcpy (lang , "C.UTF-8");
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env = lang;
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}
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strcpy (locale, env);
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}
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static void
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get_langinfo (char *locale_out, char *charset_out)
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{
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/* Get locale from environment */
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char new_locale[ENCODING_LEN + 1];
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get_locale_from_env (new_locale);
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__locale_t loc;
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memset (&loc, 0, sizeof (loc));
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const char *locale = __loadlocale (&loc, LC_CTYPE, new_locale);
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if (!locale)
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locale = "C";
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const char *charset;
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struct lc_ctype_T *lc_ctype = (struct lc_ctype_T *) loc.lc_cat[LC_CTYPE].ptr;
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if (!lc_ctype)
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charset = "ASCII";
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else
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charset = lc_ctype->codeset;
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/* The following code is borrowed from nl_langinfo()
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in newlib/libc/locale/nl_langinfo.c */
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/* Convert charset to Linux compatible codeset string. */
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if (charset[0] == 'A'/*SCII*/)
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charset = "ANSI_X3.4-1968";
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else if (charset[0] == 'E')
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{
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if (strcmp (charset, "EUCJP") == 0)
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charset = "EUC-JP";
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else if (strcmp (charset, "EUCKR") == 0)
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charset = "EUC-KR";
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else if (strcmp (charset, "EUCCN") == 0)
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charset = "GB2312";
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}
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else if (charset[0] == 'C'/*Pxxxx*/)
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{
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if (strcmp (charset + 2, "874") == 0)
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charset = "TIS-620";
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else if (strcmp (charset + 2, "20866") == 0)
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charset = "KOI8-R";
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else if (strcmp (charset + 2, "21866") == 0)
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charset = "KOI8-U";
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else if (strcmp (charset + 2, "101") == 0)
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charset = "GEORGIAN-PS";
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else if (strcmp (charset + 2, "102") == 0)
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charset = "PT154";
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}
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else if (charset[0] == 'S'/*JIS*/)
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{
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/* Cygwin uses MSFT's implementation of SJIS, which differs
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in some codepoints from the real thing, especially
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0x5c: yen sign instead of backslash,
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0x7e: overline instead of tilde.
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We can't use the real SJIS since otherwise Win32
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pathnames would become invalid. OTOH, if we return
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"SJIS" here, then libiconv will do mb<->wc conversion
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differently to our internal functions. Therefore we
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return what we really implement, CP932. This is handled
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fine by libiconv. */
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charset = "CP932";
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}
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/* Set results */
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strcpy (locale_out, new_locale);
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strcpy (charset_out, charset);
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}
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void
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fhandler_pty_slave::setup_locale (void)
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{
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if (get_ttyp ()->term_code_page != 0)
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return;
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extern UINT __eval_codepage_from_internal_charset ();
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char locale[ENCODING_LEN + 1] = "C";
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char charset[ENCODING_LEN + 1] = "ASCII";
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get_langinfo (locale, charset);
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/* Set terminal code page from locale */
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/* This code is borrowed from mintty: charset.c */
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get_ttyp ()->term_code_page = 20127; /* Default ASCII */
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char charset_u[ENCODING_LEN + 1] = {0, };
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for (int i=0; charset[i] && i<ENCODING_LEN; i++)
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charset_u[i] = toupper (charset[i]);
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unsigned int iso;
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UINT cp = 20127; /* Default for fallback */
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if (sscanf (charset_u, "ISO-8859-%u", &iso) == 1
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|| sscanf (charset_u, "ISO8859-%u", &iso) == 1
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|| sscanf (charset_u, "ISO8859%u", &iso) == 1)
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{
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if (iso && iso <= 16 && iso !=12)
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get_ttyp ()->term_code_page = 28590 + iso;
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}
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else if (sscanf (charset_u, "CP%u", &cp) == 1)
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get_ttyp ()->term_code_page = cp;
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else
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for (int i=0; cs_names[i].cp; i++)
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if (strcasecmp (charset_u, cs_names[i].name) == 0)
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{
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get_ttyp ()->term_code_page = cs_names[i].cp;
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break;
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}
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if (!get_ttyp ()->term_code_page)
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get_ttyp ()->term_code_page = __eval_codepage_from_internal_charset ();
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}
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void
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@ -1977,9 +1807,6 @@ fhandler_pty_slave::fixup_after_exec ()
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if (!close_on_exec ())
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fixup_after_fork (NULL); /* No parent handle required. */
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/* Set locale */
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setup_locale ();
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/* Hook Console API */
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#define DO_HOOK(module, name) \
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if (!name##_Orig) \
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@ -2205,8 +2032,8 @@ fhandler_pty_master::pty_master_fwd_thread ()
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state = 0;
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size_t nlen;
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char *buf = convert_mb_str
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(get_ttyp ()->term_code_page, &nlen, CP_UTF8, ptr, wlen);
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char *buf = convert_mb_str (get_ttyp ()->term_code_page,
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&nlen, CP_UTF8, ptr, wlen);
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ptr = buf;
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wlen = rlen = nlen;
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@ -2228,8 +2055,8 @@ fhandler_pty_master::pty_master_fwd_thread ()
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continue;
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}
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size_t nlen;
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char *buf = convert_mb_str
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(get_ttyp ()->term_code_page, &nlen, GetConsoleOutputCP (), ptr, wlen);
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char *buf = convert_mb_str (get_ttyp ()->term_code_page, &nlen,
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GetConsoleOutputCP (), ptr, wlen);
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ptr = buf;
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wlen = rlen = nlen;
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@ -1448,6 +1448,54 @@ __set_charset_from_locale (const char *locale, char *charset)
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stpcpy (charset, cs);
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}
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/* Called from fhandler_tty::setup_locale. Set a codepage which reflects the
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internal charset setting. This is *not* necessarily the Windows
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codepage connected to a locale by default, so we have to set this
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up explicitely. */
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UINT
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__eval_codepage_from_internal_charset ()
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{
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const char *charset = __locale_charset (__get_global_locale ());
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UINT codepage = CP_UTF8; /* Default UTF8 */
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/* The internal charset names are well defined, so we can use shortcuts. */
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switch (charset[0])
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{
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case 'B': /* BIG5 */
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codepage = 950;
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break;
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case 'C': /* CPxxx */
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codepage = strtoul (charset + 2, NULL, 10);
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break;
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case 'E': /* EUCxx */
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switch (charset[3])
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{
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case 'J': /* EUCJP */
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codepage = 20932;
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break;
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case 'K': /* EUCKR */
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codepage = 949;
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break;
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case 'C': /* EUCCN */
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codepage = 936;
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break;
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}
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break;
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case 'G': /* GBK/GB2312 */
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codepage = 936;
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break;
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case 'I': /* ISO-8859-x */
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codepage = strtoul (charset + 9, NULL, 10) + 28590;
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break;
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case 'S': /* SJIS */
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codepage = 932;
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break;
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default: /* All set to UTF8 already */
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break;
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}
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return codepage;
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}
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/* This function is called from newlib's loadlocale if the locale identifier
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was invalid, one way or the other. It looks for the file
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