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--- zvt/vt.c.zvtmb Sun Nov 26 03:49:08 2000
+++ zvt/vt.c Sun Jun 24 07:35:48 2001
@@ -109,6 +109,62 @@
#endif
+#ifdef ZVT_MB
+/*
+ return multibyte character length in vt line
+*/
+int vt_line_mblen(int x, struct vt_line *l)
+{
+ unsigned char ctmp[MB_CUR_MAX];
+ int len = 1, i;
+
+ /* arranged selection columns (sx and ex) for multibyte character */
+ if (MB_CUR_MAX >= 2) {
+ for (i = 0; i < MB_CUR_MAX; i++)
+ if (x+i <= l->width)
+ ctmp[i] = l->data[x+i] & 0xff;
+ else
+ ctmp[i] = 0;
+ len = mblen(ctmp, MB_CUR_MAX);
+ if (len <= 0) len = 1;
+ }
+
+ return(len);
+}
+
+int vt_query_line_mbchar(int x, struct vt_line *l)
+{
+ unsigned char ctmp[MB_CUR_MAX];
+ int xx = x, len = 1, i;
+
+ if (x == 0 || x == l->width) return(x);
+
+ /* arranged selection columns (sx and ex) for multibyte character */
+ if (MB_CUR_MAX >= 2) {
+ if (x > l->width) x = l->width;
+ if (x < 0) x = 0;
+ for (xx = 0; xx < x; xx += len) {
+ if ((l->data[xx] & VTATTR_DATAMASK) <= 0x1f)
+ len = 1; /* control code character */
+ else {
+ for (i = 0; i < MB_CUR_MAX && xx+i < x; i++)
+ ctmp[i] = l->data[xx+i] & VTATTR_DATAMASK;
+ for ( ; i < MB_CUR_MAX; i++)
+ ctmp[i] = 0;
+ len = mblen(ctmp, MB_CUR_MAX);
+ if (len <= 0) {
+ if (xx + 1 != x)
+ len = 1;
+ else
+ break;
+ }
+ }
+ }
+ }
+ return(xx);
+}
+#endif
+
/***********************************************************************
* Update functions
*/
@@ -1444,6 +1500,10 @@
struct vt_jump *modes = vtjumps;
char *ptr_end;
void (*process)(struct vt_em *vt); /* process function */
+#ifdef ZVT_MB
+ unsigned char ctmp[MB_CUR_MAX];
+ int ctmp_num;
+#endif
/* states:
* 0: normal escape mode
@@ -1521,7 +1581,26 @@
switch (state) {
+#if defined(ZVT_JIS) && defined(ZVT_MB)
+ case 100: /* enter JIS mode */
+ state = (c == 'B')? 101: 0;
+ break;
+ case 110: /* exit JIS mode */
+ state = 0;
+ break;
+ case 101:
+ if (c > 0x1f && c < 0x80 && MB_CUR_MAX >= 2)
+ c += 0x80;
+#endif
case 0:
+#ifdef ZVT_MB
+ /* prevent to be into alt mode for half katakana character in EUC-JP */
+ if ((mode & VT_CON) && process == vt_alt_start && (*ptr & 0xff) >= 0xa0) {
+ mode = VT_LIT;
+ process = NULL;
+ }
+#endif
+
if (mode & VT_LIT) {
/* remap character? */
if (vt->remaptable && c<=0xff)
@@ -1531,17 +1610,43 @@
if (vt->mode & VTMODE_INSERT)
vt_insert_chars(vt, 1);
+#ifdef ZVT_MB
+ ctmp_num = 0;
+#endif
/* need to wrap? */
if (vt->cursorx>=vt->width) {
if (vt->mode&VTMODE_WRAPOFF)
vt->cursorx = vt->width-1;
else {
+#ifdef ZVT_MB
+ /* check of a boundary of multi byte character */
+ int x = vt_query_line_mbchar(vt->width+1, vt->this_line);
+ if (x < vt->width && vt->width - x < sizeof(ctmp) ) {
+ for(ctmp_num=0; ctmp_num < vt->width - x; ctmp_num++) {
+ int i = vt->width - 1 - ctmp_num;
+ ctmp[ctmp_num] = vt->this_line->data[i] & 0xff;
+ vt->this_line->data[i] =
+ ((vt->attr) & VTATTR_CLEARMASK) |VTATTR_MULTIBYTE;
+ vt->this_line->modcount++;
+ }
+ }
+#endif
vt_lf(vt);
vt->cursorx=0;
}
}
/* output character */
+#ifdef ZVT_MB
+ if (ctmp_num) {
+ while(ctmp_num) {
+ vt->this_line->data[vt->cursorx++] =
+ ((vt->attr) & VTATTR_MASK) | ctmp[ctmp_num-1];
+ ctmp_num--;
+ vt->this_line->modcount++;
+ }
+ }
+#endif
vt->this_line->data[vt->cursorx] = ((vt->attr) & VTATTR_MASK) | c;
vt->this_line->modcount++;
/* d(printf("literal %c\n", c)); */
@@ -1571,6 +1676,12 @@
} else if (c==']') { /* set text parameters, read parameters */
state = 4;
vt->arg.txt.outptr = vt->arg.txt.args_mem;
+#if defined(ZVT_JIS) && defined(ZVT_MB)
+ } else if (c=='$') { /* in JIS code */
+ state = 100;
+ } else if (c=='(') { /* out JIS mode */
+ state = 110;
+#endif
} else if (mode & VT_EXA) {
vt->arg.num.intargs[0] = c & 0x7f;
state = 5;
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