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Display translated help pages

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Use an algorithm similar to gettext's locale resolution to find an
appropriate translation to display. Fall back to the English version.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>
This commit is contained in:
Lukas Fleischer 2013-08-27 19:32:02 +02:00
parent ef0f9e6411
commit bd4f4a136f
3 changed files with 64 additions and 3 deletions
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1
src/calcurse.h
View File

@ -757,6 +757,7 @@ void io_load_app(void);
void io_load_todo(void);
void io_load_keys(const char *);
int io_check_dir(const char *);
unsigned io_dir_exists(const char *);
unsigned io_file_exists(const char *);
int io_check_file(const char *);
int io_check_data_files(void);

59
src/help.c
View File

@ -36,21 +36,74 @@
#include "calcurse.h"
static int find_basedir(const char *locale_info[], unsigned n, char *basedir)
{
int i;
char *locale = NULL;
int ret = 0;
for (i = 0; i < n; i++) {
if (!locale_info[i])
continue;
locale = strdup(locale_info[i]);
snprintf(basedir, BUFSIZ, DOCDIR "/%s", locale);
if (io_dir_exists(basedir)) {
ret = 1;
goto cleanup;
}
strtok(locale, ".@");
snprintf(basedir, BUFSIZ, DOCDIR "/%s", locale);
if (io_dir_exists(basedir)) {
ret = 1;
goto cleanup;
}
strtok(locale, "_");
snprintf(basedir, BUFSIZ, DOCDIR "/%s", locale);
if (io_dir_exists(basedir)) {
ret = 1;
goto cleanup;
}
free(locale);
locale = NULL;
}
cleanup:
if (locale)
free(locale);
return ret;
}
int display_help(const char *topic)
{
const char *locale_info[] = {
getenv("LANGUAGE"),
getenv("LC_ALL"),
getenv("LC_MESSAGE"),
getenv("LANG")
};
char basedir[BUFSIZ];
char path[BUFSIZ];
if (!topic)
topic = "intro";
snprintf(path, BUFSIZ, DOCDIR "/%s.txt", topic);
if (!find_basedir(locale_info, ARRAY_SIZE(locale_info), basedir))
snprintf(basedir, BUFSIZ, DOCDIR);
snprintf(path, BUFSIZ, "%s/%s.txt", basedir, topic);
if (!io_file_exists(path) && keys_str2int(topic) > 0 &&
keys_get_action(keys_str2int(topic)) > 0) {
int ch = keys_str2int(topic);
enum key action = keys_get_action(ch);
topic = keys_get_label(action);
snprintf(path, BUFSIZ, DOCDIR "/%s.txt", topic);
snprintf(path, BUFSIZ, "%s/%s.txt", basedir, topic);
}
if (!io_file_exists(path)) {
@ -132,7 +185,7 @@ int display_help(const char *topic)
topic = "priority";
else if (!strcmp(topic, "lower-priority"))
topic = "priority";
snprintf(path, BUFSIZ, DOCDIR "/%s.txt", topic);
snprintf(path, BUFSIZ, "%s/%s.txt", basedir, topic);
}
if (io_file_exists(path)) {

7
src/io.c
View File

@ -872,6 +872,13 @@ int io_check_dir(const char *dir)
}
}
unsigned io_dir_exists(const char *path)
{
struct stat st;
return (!stat(path, &st) && S_ISDIR(st.st_mode));
}
unsigned io_file_exists(const char *file)
{
FILE *fd;