fix fullwidth char

Signed-off-by: Pierre Habouzit <madcoder@debian.org>

diff --git a/madtty/madtty.c b/madtty/madtty.c
index ce9f256..83c2a5d 100644 (file)
--- a/madtty/madtty.c
+++ b/madtty/madtty.c
@@ -19,6 +19,7 @@
     Copyright © 2006 Pierre Habouzit
  */
 
+#define _GNU_SOURCE
 #include <assert.h>
 #include <ctype.h>
 #include <errno.h>
@@ -30,6 +31,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
+#include <wchar.h>
 
 #include "madtty.h"
 
@@ -564,9 +566,9 @@ static void try_interpret_escape_seq(madtty_t *rt)
     }
 
     if (rt->elen + 1 >= (int)sizeof(rt->ebuf)) {
-        int i;
 cancel:
 #if 0
+        int i;
         fprintf(stderr, "cancelled: \\033");
         for (i = 0; i < rt->elen; i++) {
             int c = rt->ebuf[i];
@@ -625,6 +627,8 @@ static void madtty_process_nonprinting(madtty_t *rt, wchar_t wc)
 
 void madtty_putc(madtty_t *rt, wchar_t wc)
 {
+    int width = 0;
+
     if (!rt->seen_input) {
         rt->seen_input = 1;
         kill(-rt->childpid, SIGWINCH);
@@ -665,8 +669,18 @@ void madtty_putc(madtty_t *rt, wchar_t wc)
 
             if (wc >= 0x41 && wc <= 0x7e && vt100_0[wc - 0x41]) {
                 wc = vt100_0[wc - 0x41];
-                // width = 1; // vt100 line drawing characters are always single-width
             }
+            width = 1;
+        } else {
+            width = wcwidth(wc) ?: 1;
+        }
+
+        if (width == 2 && rt->curs_col == rt->cols - 1) {
+            tmp = rt->curs_row;
+            tmp->dirty = true;
+            tmp->text[rt->curs_col] = 0;
+            tmp->attr[rt->curs_col] = build_attrs(rt->curattrs);
+            rt->curs_col++;
         }
 
         if (rt->curs_col >= rt->cols) {
@@ -675,18 +689,23 @@ void madtty_putc(madtty_t *rt, wchar_t wc)
         }
 
         tmp = rt->curs_row;
+        tmp->dirty = true;
 
         if (rt->insert) {
-            wmemmove(tmp->text + rt->curs_col + 1, tmp->text + rt->curs_col,
-                     (rt->cols - rt->curs_col - 1));
-            memmove(tmp->attr + rt->curs_col + 1, tmp->attr + rt->curs_col,
-                    (rt->cols - rt->curs_col - 1) * sizeof(tmp->attr[0]));
+            wmemmove(tmp->text + rt->curs_col + width, tmp->text + rt->curs_col,
+                     (rt->cols - rt->curs_col - width));
+            memmove(tmp->attr + rt->curs_col + width, tmp->attr + rt->curs_col,
+                    (rt->cols - rt->curs_col - width) * sizeof(tmp->attr[0]));
         }
 
         tmp->text[rt->curs_col] = wc;
         tmp->attr[rt->curs_col] = build_attrs(rt->curattrs);
-        tmp->dirty = true;
         rt->curs_col++;
+        if (width == 2) {
+            tmp->text[rt->curs_col] = 0;
+            tmp->attr[rt->curs_col] = build_attrs(rt->curattrs);
+            rt->curs_col++;
+        }
     }
 }
 
@@ -803,6 +822,8 @@ void madtty_draw(madtty_t *rt, WINDOW *win, int srow, int scol)
 
                 len = wcrtomb(buf, row->text[j], NULL);
                 waddnstr(win, buf, len);
+                if (wcwidth(row->text[j]) > 1)
+                    j++;
             } else {
                 waddch(win, row->text[j] > ' ' ? row->text[j] : ' ');
             }
@@ -884,6 +905,7 @@ void madtty_initialize(void)
     raw();
     nodelay(stdscr, TRUE);
     keypad(stdscr, TRUE);
+    ESCDELAY=50;
 
     for (int i = -1; i < 8; i++) {
         for (int j = -1; j < 8; j++) {