[PATCH] Kconfig i18n support

This patch adds i18n support for make *config, allowing users to have the
config process in their own language.

No printk was harmed in the process, don't worry, so all the bug reports,
kernel messages, etc, remain in english, just the user tools to configure
the kernel are internationalized.

Users not interested in translations can just unset the related LANG,
LC_ALL, etc env variables and have the config process in plain english,
something like:

LANG= make menuconfig

is enough for having the whole config process in english. Or just don't
install any translation file.

Translations for brazilian portuguese are being done by a team of
volunteers at:

http://www.visionflex.inf.br/kernel_ptbr/pmwiki.php/Principal/Traducoes

To start the translation process:

  make update-po-config

  This will generate the pot template named scripts/kconfig/linux.pot,
  copy it to, say, ~/es.po, to start the translation for spanish.

To test your translation, as root issue this command:

  msgfmt -o /usr/share/locale/es/LC_MESSAGES/linux.mo ~/es.po

  Replace "es" with your language code.

  Then execute, for instance:

  make menuconfig

The current patch doesn't use any optimization to reduce the size of the
generated .mo file, it is possible to use the config option as a key, but
this doesn't prevent the current patch from being used or the translations
done under the current scheme to be in any way lost if we chose to do any
kind of keying.

Thanks to Fabricio Vaccari for starting the pt_BR (brazilian portuguese)
translation effort, Thiago Maciera for helping me with the gconf.cc (QT
frontent) i18n coding and to all the volunteers that are already working on
the first translation, to pt_BR.

I left the question on whether to ship the translations with the stock kernel
sources to be discussed here, please share your suggestions.

Signed-off-by: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org
Signed-off-by: Andrew Morton <akpm@osdl.org>

1 files changed, 63 insertions, 57 deletions

diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 730d316fe7f..e5db10ca956 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -4,6 +4,8 @@
  *
  * Introduced single menu mode (show all sub-menus in one large tree).
  * 2002-11-06 Petr Baudis <pasky@ucw.cz>
+ *
+ * i18n, 2005, Arnaldo Carvalho de Melo <acme@conectiva.com.br>
  */
 
 #include <sys/ioctl.h>
@@ -23,7 +25,7 @@
 #include "lkc.h"
 
 static char menu_backtitle[128];
-static const char mconf_readme[] =
+static const char mconf_readme[] = N_(
 "Overview\n"
 "--------\n"
 "Some kernel features may be built directly into the kernel.\n"
@@ -156,39 +158,39 @@ static const char mconf_readme[] =
 "\n"
 "Note that this mode can eventually be a little more CPU expensive\n"
 "(especially with a larger number of unrolled categories) than the\n"
-"default mode.\n",
-menu_instructions[] =
+"default mode.\n"),
+menu_instructions[] = N_(
 	"Arrow keys navigate the menu.  "
 	"<Enter> selects submenus --->.  "
 	"Highlighted letters are hotkeys.  "
 	"Pressing <Y> includes, <N> excludes, <M> modularizes features.  "
 	"Press <Esc><Esc> to exit, <?> for Help, </> for Search.  "
-	"Legend: [*] built-in  [ ] excluded  <M> module  < > module capable",
-radiolist_instructions[] =
+	"Legend: [*] built-in  [ ] excluded  <M> module  < > module capable"),
+radiolist_instructions[] = N_(
 	"Use the arrow keys to navigate this window or "
 	"press the hotkey of the item you wish to select "
 	"followed by the <SPACE BAR>. "
-	"Press <?> for additional information about this option.",
-inputbox_instructions_int[] =
+	"Press <?> for additional information about this option."),
+inputbox_instructions_int[] = N_(
 	"Please enter a decimal value. "
 	"Fractions will not be accepted.  "
-	"Use the <TAB> key to move from the input field to the buttons below it.",
-inputbox_instructions_hex[] =
+	"Use the <TAB> key to move from the input field to the buttons below it."),
+inputbox_instructions_hex[] = N_(
 	"Please enter a hexadecimal value. "
-	"Use the <TAB> key to move from the input field to the buttons below it.",
-inputbox_instructions_string[] =
+	"Use the <TAB> key to move from the input field to the buttons below it."),
+inputbox_instructions_string[] = N_(
 	"Please enter a string value. "
-	"Use the <TAB> key to move from the input field to the buttons below it.",
-setmod_text[] =
+	"Use the <TAB> key to move from the input field to the buttons below it."),
+setmod_text[] = N_(
 	"This feature depends on another which has been configured as a module.\n"
-	"As a result, this feature will be built as a module.",
-nohelp_text[] =
-	"There is no help available for this kernel option.\n",
-load_config_text[] =
+	"As a result, this feature will be built as a module."),
+nohelp_text[] = N_(
+	"There is no help available for this kernel option.\n"),
+load_config_text[] = N_(
 	"Enter the name of the configuration file you wish to load.  "
 	"Accept the name shown to restore the configuration you "
-	"last retrieved.  Leave blank to abort.",
-load_config_help[] =
+	"last retrieved.  Leave blank to abort."),
+load_config_help[] = N_(
 	"\n"
 	"For various reasons, one may wish to keep several different kernel\n"
 	"configurations available on a single machine.\n"
@@ -198,11 +200,11 @@ load_config_help[] =
 	"to modify that configuration.\n"
 	"\n"
 	"If you are uncertain, then you have probably never used alternate\n"
-	"configuration files.  You should therefor leave this blank to abort.\n",
-save_config_text[] =
+	"configuration files.  You should therefor leave this blank to abort.\n"),
+save_config_text[] = N_(
 	"Enter a filename to which this configuration should be saved "
-	"as an alternate.  Leave blank to abort.",
-save_config_help[] =
+	"as an alternate.  Leave blank to abort."),
+save_config_help[] = N_(
 	"\n"
 	"For various reasons, one may wish to keep different kernel\n"
 	"configurations available on a single machine.\n"
@@ -212,8 +214,8 @@ save_config_help[] =
 	"configuration options you have selected at that time.\n"
 	"\n"
 	"If you are uncertain what all this means then you should probably\n"
-	"leave this blank.\n",
-search_help[] =
+	"leave this blank.\n"),
+search_help[] = N_(
 	"\n"
 	"Search for CONFIG_ symbols and display their relations.\n"
 	"Example: search for \"^FOO\"\n"
@@ -250,7 +252,7 @@ search_help[] =
 	"Examples: USB	=> find all CONFIG_ symbols containing USB\n"
 	"          ^USB => find all CONFIG_ symbols starting with USB\n"
 	"          USB$ => find all CONFIG_ symbols ending with USB\n"
-	"\n";
+	"\n");
 
 static signed char buf[4096], *bufptr = buf;
 static signed char input_buf[4096];
@@ -305,8 +307,8 @@ static void init_wsize(void)
 	}
 
 	if (rows < 19 || cols < 80) {
-		fprintf(stderr, "Your display is too small to run Menuconfig!\n");
-		fprintf(stderr, "It must be at least 19 lines by 80 columns.\n");
+		fprintf(stderr, N_("Your display is too small to run Menuconfig!\n"));
+		fprintf(stderr, N_("It must be at least 19 lines by 80 columns.\n"));
 		exit(1);
 	}
 
@@ -526,9 +528,9 @@ static void search_conf(void)
 again:
 	cprint_init();
 	cprint("--title");
-	cprint("Search Configuration Parameter");
+	cprint(_("Search Configuration Parameter"));
 	cprint("--inputbox");
-	cprint("Enter Keyword");
+	cprint(_("Enter Keyword"));
 	cprint("10");
 	cprint("75");
 	cprint("");
@@ -539,7 +541,7 @@ again:
 	case 0:
 		break;
 	case 1:
-		show_helptext("Search Configuration", search_help);
+		show_helptext(_("Search Configuration"), search_help);
 		goto again;
 	default:
 		return;
@@ -548,7 +550,7 @@ again:
 	sym_arr = sym_re_search(input_buf);
 	res = get_relations_str(sym_arr);
 	free(sym_arr);
-	show_textbox("Search Results", str_get(&res), 0, 0);
+	show_textbox(_("Search Results"), str_get(&res), 0, 0);
 	str_free(&res);
 }
 
@@ -721,9 +723,9 @@ static void conf(struct menu *menu)
 	while (1) {
 		cprint_init();
 		cprint("--title");
-		cprint("%s", prompt ? prompt : "Main Menu");
+		cprint("%s", prompt ? prompt : _("Main Menu"));
 		cprint("--menu");
-		cprint(menu_instructions);
+		cprint(_(menu_instructions));
 		cprint("%d", rows);
 		cprint("%d", cols);
 		cprint("%d", rows - 10);
@@ -736,9 +738,9 @@ static void conf(struct menu *menu)
 			cprint(":");
 			cprint("--- ");
 			cprint("L");
-			cprint("    Load an Alternate Configuration File");
+			cprint(_("    Load an Alternate Configuration File"));
 			cprint("S");
-			cprint("    Save Configuration to an Alternate File");
+			cprint(_("    Save Configuration to an Alternate File"));
 		}
 		stat = exec_conf();
 		if (stat < 0)
@@ -793,7 +795,7 @@ static void conf(struct menu *menu)
 			if (sym)
 				show_help(submenu);
 			else
-				show_helptext("README", mconf_readme);
+				show_helptext("README", _(mconf_readme));
 			break;
 		case 3:
 			if (type == 't') {
@@ -849,7 +851,7 @@ static void show_help(struct menu *menu)
 	{
 		if (sym->name) {
 			str_printf(&help, "CONFIG_%s:\n\n", sym->name);
-			str_append(&help, sym->help);
+			str_append(&help, _(sym->help));
 			str_append(&help, "\n");
 		}
 	} else {
@@ -886,9 +888,9 @@ static void conf_choice(struct menu *menu)
 	while (1) {
 		cprint_init();
 		cprint("--title");
-		cprint("%s", prompt ? prompt : "Main Menu");
+		cprint("%s", prompt ? prompt : _("Main Menu"));
 		cprint("--radiolist");
-		cprint(radiolist_instructions);
+		cprint(_(radiolist_instructions));
 		cprint("15");
 		cprint("70");
 		cprint("6");
@@ -935,17 +937,17 @@ static void conf_string(struct menu *menu)
 	while (1) {
 		cprint_init();
 		cprint("--title");
-		cprint("%s", prompt ? prompt : "Main Menu");
+		cprint("%s", prompt ? prompt : _("Main Menu"));
 		cprint("--inputbox");
 		switch (sym_get_type(menu->sym)) {
 		case S_INT:
-			cprint(inputbox_instructions_int);
+			cprint(_(inputbox_instructions_int));
 			break;
 		case S_HEX:
-			cprint(inputbox_instructions_hex);
+			cprint(_(inputbox_instructions_hex));
 			break;
 		case S_STRING:
-			cprint(inputbox_instructions_string);
+			cprint(_(inputbox_instructions_string));
 			break;
 		default:
 			/* panic? */;
@@ -958,7 +960,7 @@ static void conf_string(struct menu *menu)
 		case 0:
 			if (sym_set_string_value(menu->sym, input_buf))
 				return;
-			show_textbox(NULL, "You have made an invalid entry.", 5, 43);
+			show_textbox(NULL, _("You have made an invalid entry."), 5, 43);
 			break;
 		case 1:
 			show_help(menu);
@@ -987,10 +989,10 @@ static void conf_load(void)
 				return;
 			if (!conf_read(input_buf))
 				return;
-			show_textbox(NULL, "File does not exist!", 5, 38);
+			show_textbox(NULL, _("File does not exist!"), 5, 38);
 			break;
 		case 1:
-			show_helptext("Load Alternate Configuration", load_config_help);
+			show_helptext(_("Load Alternate Configuration"), load_config_help);
 			break;
 		case 255:
 			return;
@@ -1016,10 +1018,10 @@ static void conf_save(void)
 				return;
 			if (!conf_write(input_buf))
 				return;
-			show_textbox(NULL, "Can't create file!  Probably a nonexistent directory.", 5, 60);
+			show_textbox(NULL, _("Can't create file!  Probably a nonexistent directory."), 5, 60);
 			break;
 		case 1:
-			show_helptext("Save Alternate Configuration", save_config_help);
+			show_helptext(_("Save Alternate Configuration"), save_config_help);
 			break;
 		case 255:
 			return;
@@ -1040,12 +1042,16 @@ int main(int ac, char **av)
 	char *mode;
 	int stat;
 
+	setlocale(LC_ALL, "");
+	bindtextdomain(PACKAGE, LOCALEDIR);
+	textdomain(PACKAGE);
+
 	conf_parse(av[1]);
 	conf_read(NULL);
 
 	sym = sym_lookup("KERNELRELEASE", 0);
 	sym_calc_value(sym);
-	sprintf(menu_backtitle, "Linux Kernel v%s Configuration",
+	sprintf(menu_backtitle, _("Linux Kernel v%s Configuration"),
 		sym_get_string_value(sym));
 
 	mode = getenv("MENUCONFIG_MODE");
@@ -1062,7 +1068,7 @@ int main(int ac, char **av)
 	do {
 		cprint_init();
 		cprint("--yesno");
-		cprint("Do you wish to save your new kernel configuration?");
+		cprint(_("Do you wish to save your new kernel configuration?"));
 		cprint("5");
 		cprint("60");
 		stat = exec_conf();
@@ -1070,20 +1076,20 @@ int main(int ac, char **av)
 
 	if (stat == 0) {
 		if (conf_write(NULL)) {
-			fprintf(stderr, "\n\n"
+			fprintf(stderr, _("\n\n"
 				"Error during writing of the kernel configuration.\n"
 				"Your kernel configuration changes were NOT saved."
-				"\n\n");
+				"\n\n"));
 			return 1;
 		}
-		printf("\n\n"
+		printf(_("\n\n"
 			"*** End of Linux kernel configuration.\n"
 			"*** Execute 'make' to build the kernel or try 'make help'."
-			"\n\n");
+			"\n\n"));
 	} else {
-		fprintf(stderr, "\n\n"
+		fprintf(stderr, _("\n\n"
 			"Your kernel configuration changes were NOT saved."
-			"\n\n");
+			"\n\n"));
 	}
 
 	return 0;