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fish: Detect UTF-8 output and open termcap/terminfo database.

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Provide a generic mechanism within guestfish to detect if
output if UTF-8 and to open the termcap (or terminfo) database
for the current terminal type.
This commit is contained in:
Richard Jones
2010-08-28 12:48:49 +01:00
parent 65510965b3
commit 3003df6bbc
2 changed files with 37 additions and 0 deletions
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35
fish/fish.c
View File

@@ -30,6 +30,7 @@
#include <sys/types.h>
#include <sys/wait.h>
#include <locale.h>
#include <langinfo.h>
#include <termios.h>
#ifdef HAVE_LIBREADLINE
@@ -69,6 +70,7 @@ struct mp {
char *mountpoint;
};
static void set_up_terminal (void);
static char add_drives (struct drv *drv, char next_drive);
static void prepare_drives (struct drv *drv);
static void mount_mps (struct mp *mp);
@@ -96,6 +98,8 @@ int command_num = 0;
int keys_from_stdin = 0;
const char *libvirt_uri = NULL;
int inspector = 0;
int utf8_mode = 0;
int have_terminfo = 0;
static void __attribute__((noreturn))
usage (int status)
@@ -159,6 +163,8 @@ main (int argc, char *argv[])
bindtextdomain (PACKAGE, LOCALEBASEDIR);
textdomain (PACKAGE);
set_up_terminal ();
enum { HELP_OPTION = CHAR_MAX + 1 };
static const char *options = "a:c:d:Df:h::im:nN:rv?Vx";
@@ -509,6 +515,35 @@ main (int argc, char *argv[])
exit (EXIT_SUCCESS);
}
/* The <term.h> header file which defines this has "issues". */
extern int tgetent (char *, const char *);
static void
set_up_terminal (void)
{
/* http://www.cl.cam.ac.uk/~mgk25/unicode.html#activate */
utf8_mode = STREQ (nl_langinfo (CODESET), "UTF-8");
char *term = getenv ("TERM");
if (term == NULL) {
//fprintf (stderr, _("guestfish: TERM (terminal type) not defined.\n"));
return;
}
int r = tgetent (NULL, term);
if (r == -1) {
fprintf (stderr, _("guestfish: could not access termcap or terminfo database.\n"));
return;
}
if (r == 0) {
fprintf (stderr, _("guestfish: terminal type \"%s\" not defined.\n"),
term);
return;
}
have_terminfo = 1;
}
void
pod2text (const char *name, const char *shortdesc, const char *str)
{

2
fish/fish.h
View File

@@ -53,6 +53,8 @@ extern int read_only;
extern int quit;
extern int verbose;
extern int command_num;
extern int utf8_mode;
extern int have_terminfo;
extern const char *libvirt_uri;
extern int issue_command (const char *cmd, char *argv[], const char *pipe);
extern void pod2text (const char *name, const char *shortdesc, const char *body);