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Support UTF-8 key bindings by expanding the key type from int to

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uint64_t and converting UTF-8 to Unicode on input and the reverse on
output. (This allows key bindings, there are still omissions - the
largest being that the various prompts do not accept UTF-8.)
This commit is contained in:
nicm
2015-11-12 11:05:34 +00:00
parent 7062b0e65d
commit 69e0b8326a
19 changed files with 280 additions and 168 deletions
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62
tty-keys.c
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@@ -33,11 +33,11 @@
* into a ternary tree.
*/
void tty_keys_add1(struct tty_key **, const char *, int);
void tty_keys_add(struct tty *, const char *, int);
void tty_keys_add1(struct tty_key **, const char *, key_code);
void tty_keys_add(struct tty *, const char *, key_code);
void tty_keys_free1(struct tty_key *);
struct tty_key *tty_keys_find1(
struct tty_key *, const char *, size_t, size_t *);
struct tty_key *tty_keys_find1(struct tty_key *, const char *, size_t,
size_t *);
struct tty_key *tty_keys_find(struct tty *, const char *, size_t, size_t *);
void tty_keys_callback(int, short, void *);
int tty_keys_mouse(struct tty *, const char *, size_t, size_t *);
@@ -45,7 +45,7 @@ int tty_keys_mouse(struct tty *, const char *, size_t, size_t *);
/* Default raw keys. */
struct tty_default_key_raw {
const char *string;
int key;
key_code key;
};
const struct tty_default_key_raw tty_default_raw_keys[] = {
/*
@@ -165,7 +165,7 @@ const struct tty_default_key_raw tty_default_raw_keys[] = {
/* Default terminfo(5) keys. */
struct tty_default_key_code {
enum tty_code_code code;
int key;
key_code key;
};
const struct tty_default_key_code tty_default_code_keys[] = {
/* Function keys. */
@@ -317,7 +317,7 @@ const struct tty_default_key_code tty_default_code_keys[] = {
/* Add key to tree. */
void
tty_keys_add(struct tty *tty, const char *s, int key)
tty_keys_add(struct tty *tty, const char *s, key_code key)
{
struct tty_key *tk;
size_t size;
@@ -325,17 +325,17 @@ tty_keys_add(struct tty *tty, const char *s, int key)
keystr = key_string_lookup_key(key);
if ((tk = tty_keys_find(tty, s, strlen(s), &size)) == NULL) {
log_debug("new key %s: 0x%x (%s)", s, key, keystr);
log_debug("new key %s: 0x%llx (%s)", s, key, keystr);
tty_keys_add1(&tty->key_tree, s, key);
} else {
log_debug("replacing key %s: 0x%x (%s)", s, key, keystr);
log_debug("replacing key %s: 0x%llx (%s)", s, key, keystr);
tk->key = key;
}
}
/* Add next node to the tree. */
void
tty_keys_add1(struct tty_key **tkp, const char *s, int key)
tty_keys_add1(struct tty_key **tkp, const char *s, key_code key)
{
struct tty_key *tk;
@@ -464,15 +464,18 @@ tty_keys_find1(struct tty_key *tk, const char *buf, size_t len, size_t *size)
* Process at least one key in the buffer and invoke tty->key_callback. Return
* 0 if there are no further keys, or 1 if there could be more in the buffer.
*/
int
key_code
tty_keys_next(struct tty *tty)
{
struct tty_key *tk;
struct timeval tv;
const char *buf;
size_t len, size;
cc_t bspace;
int key, delay, expired = 0;
struct tty_key *tk;
struct timeval tv;
const char *buf;
size_t len, size;
cc_t bspace;
int delay, expired = 0;
key_code key;
struct utf8_data utf8data;
u_int i;
/* Get key buffer. */
buf = EVBUFFER_DATA(tty->event->input);
@@ -535,8 +538,23 @@ first_key:
}
}
/* Is this valid UTF-8? */
if (utf8_open(&utf8data, (u_char)*buf)) {
size = utf8data.size;
if (len < size) {
if (expired)
goto discard_key;
goto partial_key;
}
for (i = 1; i < size; i++)
utf8_append(&utf8data, (u_char)buf[i]);
key = utf8_combine(&utf8data);
log_debug("UTF-8 key %.*s %#llx", (int)size, buf, key);
goto complete_key;
}
/* No key found, take first. */
key = (u_char) *buf;
key = (u_char)*buf;
size = 1;
/*
@@ -578,7 +596,7 @@ partial_key:
return (0);
complete_key:
log_debug("complete key %.*s %#x", (int) size, buf, key);
log_debug("complete key %.*s %#llx", (int)size, buf, key);
/* Remove data from buffer. */
evbuffer_drain(tty->event->input, size);
@@ -604,7 +622,7 @@ complete_key:
return (1);
discard_key:
log_debug("discard key %.*s %#x", (int) size, buf, key);
log_debug("discard key %.*s %#llx", (int)size, buf, key);
/* Remove data from buffer. */
evbuffer_drain(tty->event->input, size);
@@ -684,10 +702,10 @@ tty_keys_mouse(struct tty *tty, const char *buf, size_t len, size_t *size)
utf8_append(&utf8data, buf[*size]);
value = utf8_combine(&utf8data);
} else
value = (u_char) buf[*size];
value = (u_char)buf[*size];
(*size)++;
} else {
value = (u_char) buf[*size];
value = (u_char)buf[*size];
(*size)++;
}