diff options
| -rw-r--r-- | src/wreadln.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/wreadln.c b/src/wreadln.c index 926f223b7..08ba991f2 100644 --- a/src/wreadln.c +++ b/src/wreadln.c @@ -26,6 +26,10 @@ #include <string.h> #include <glib.h> +#ifdef ENABLE_WIDE +#include <sys/poll.h> +#endif + #define KEY_CTRL_A 1 #define KEY_CTRL_B 2 #define KEY_CTRL_C 3 @@ -120,16 +124,66 @@ static inline void drawline(const struct wreadln *wr) doupdate(); } +#ifdef ENABLE_WIDE +static bool +multibyte_is_complete(const char *p, size_t length) +{ + GError *error = NULL; + gchar *q = g_locale_to_utf8(p, length, + NULL, NULL, &error); + if (q != NULL) { + g_free(q); + return true; + } else { + g_error_free(error); + return false; + } +} +#endif + static void wreadln_insert_byte(struct wreadln *wr, gint key) { size_t rest = strlen(wr->line + wr->cursor) + 1; +#ifdef ENABLE_WIDE + char buffer[32] = { key }; + size_t length = 1; + struct pollfd pfd = { + .fd = 0, + .events = POLLIN, + }; + int ret; + + /* wide version: try to complete the multibyte sequence */ + + while (length < sizeof(buffer)) { + if (multibyte_is_complete(buffer, length)) + /* sequence is complete */ + break; + + /* poll for more bytes on stdin, without timeout */ + + ret = poll(&pfd, 1, 0); + if (ret <= 0) + /* no more input from keyboard */ + break; + + buffer[length++] = wgetch(wr->w); + } + + memmove(wr->line + wr->cursor + length, + wr->line + wr->cursor, rest); + memcpy(wr->line + wr->cursor, buffer, length); + +#else const size_t length = 1; memmove(wr->line + wr->cursor + length, wr->line + wr->cursor, rest); wr->line[wr->cursor] = key; +#endif + wr->cursor += length; if (wr->cursor >= (size_t)wr->width && wr->start < wr->cursor - wr->width + 1) |