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vterm.c
1523 lines (1417 loc) · 31.6 KB
/
vterm.c
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/*
* JFBTERM -
* Copyright (C) 2003 Fumitoshi UKAI <ukai@debian.or.jp>
* Copyright (C) 1999 Noritoshi MASUICHI (nmasu@ma3.justnet.ne.jp)
*
* KON2 - Kanji ON Console -
* Copyright (C) 1992-1996 Takashi MANABE (manabe@papilio.tutics.tut.ac.jp)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY TAKASHI MANABE ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE TERRENCE R. LAMBERT BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <termios.h>
#include <malloc.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/kd.h>
#include <errno.h>
#include "config.h"
#include "util.h"
#include "term.h"
#include "vterm.h"
#include "font.h"
#include "csv.h"
#include "sequence.h"
#include "message.h"
#define LEN_REPORT 9
static void tvterm_set_default_encoding(TVterm* p, const char* en);
static void tvterm_esc_start(TVterm* p, u_char ch);
static void tvterm_esc_bracket(TVterm*, u_char);
#ifdef JFB_OTHER_CODING_SYSTEM
static void tvterm_esc_rbracket(TVterm*, u_char);
#endif
static void tvterm_esc_traditional_multibyte_fix(TVterm* p, u_char ch);
static int tvterm_find_font_index(int fsig);
static void tvterm_esc_designate_font(TVterm* p, u_char ch);
static void tvterm_esc_designate_otherCS(TVterm* p, u_char ch);
static void tvterm_invoke_gx(TVterm* p, TFontSpec* fs, u_int n);
static void tvterm_re_invoke_gx(TVterm* p, TFontSpec* fs);
void tvterm_set_window_size(TVterm* p);
static void tvterm_switch_to_ISO2022(TVterm *p);
static int tvterm_is_ISO2022(TVterm *p);
#ifdef JFB_UTF8
static void tvterm_switch_to_UTF8(TVterm *p);
static int tvterm_is_UTF8(TVterm *p);
#endif
#ifdef JFB_OTHER_CODING_SYSTEM
static void tvterm_finish_otherCS(TVterm *p);
static void tvterm_switch_to_otherCS(TVterm *p, TCodingSystem *other);
static int tvterm_is_otherCS(TVterm *p);
#endif
void tvterm_init(TVterm* p, TTerm* pt, u_int hw, u_int hh, TCaps *caps, const char* en)
{
p->term = pt;
p->xcap = hw;
p->xcap4 = (hw+7) & ~3;
p->ycap = hh;
tpen_init(&(p->pen));
p->savedPen = NULL;
p->savedPenSL = NULL;
p->scroll = 0;
p->soft = FALSE;
p->wrap = FALSE;
p->esc = NULL;
p->textHead = 0;
/* iso 2022 's default */
p->gDefaultL = 0;
p->gDefaultR = 1;
p->gDefaultIdx[0] = 0; /* G0 <== ASCII */
p->gDefaultIdx[1] = 1; /* G1 <== JIS X 0208 */
p->gDefaultIdx[2] = 0; /* G2 <== ASCII */
p->gDefaultIdx[3] = 0; /* G3 <== ASCII */
#ifdef JFB_UTF8
p->utf8DefaultIdx = 0;
p->utf8Idx = 0;
p->utf8remain = 0;
p->ucs2ch = 0;
#endif
#ifdef JFB_OTHER_CODING_SYSTEM
p->otherCS = NULL;
#endif
p->caps = caps;
p->altCs = FALSE;
tvterm_set_default_encoding(p, en);
}
int
tvterm_parse_encoding(const char *en, int idx[6])
{
static const char* table[] = {"G0", "G1", "G2", "G3", NULL};
TCsv farg;
const char *g;
int i;
int ig;
tcsv_init(&farg, en);
if (farg.cap != 6) {
tcsv_final(&farg);
return 0;
}
for (i = 0; i < 2; i++) {
g = tcsv_get_token(&farg);
ig = util_search_string(g, table);
if (ig == -1)
ig = i;
idx[i] = ig;
}
for (i = 0 ; i < 4 ; i++) {
g = tcsv_get_token(&farg);
ig = tfont_ary_search_idx(g);
if (ig == -1) {
ig = 0;
}
idx[2+i] = ig;
}
tcsv_final(&farg);
return 1;
}
static void
tvterm_switch_to_ISO2022(TVterm *p)
{
#ifdef JFB_OTHER_CODING_SYSTEM
tvterm_finish_otherCS(p);
#endif
#ifdef JFB_UTF8
p->utf8Idx = 0;
p->utf8remain = 0;
p->ucs2ch = 0;
#endif
}
static int
tvterm_is_ISO2022(TVterm *p)
{
#ifdef JFB_OTHER_CODING_SYSTEM
if (tvterm_is_otherCS(p))
return 0;
#endif
#ifdef JFB_UTF8
if (tvterm_is_UTF8(p))
return 0;
#endif
return 1;
}
#ifdef JFB_UTF8
static int
tvterm_UTF8index(const char *en)
{
int i;
TCsv farg;
const char *g;
int id = 0;
tcsv_init(&farg, en);
g = tcsv_get_token(&farg);
if (strcmp(g, "UTF-8") != 0)
goto FINALIZE;
if (farg.cap != 2)
goto FINALIZE;
g = tcsv_get_token(&farg);
for (i = 0; gFont[i].name; i++) {
if (strcmp(gFont[i].name, g) == 0) {
if (tfont_is_loaded(&(gFont[i]))) {
id = i;
break;
}
}
}
FINALIZE:
tcsv_final(&farg);
return id;
}
static void
tvterm_switch_to_UTF8(TVterm *p)
{
#ifdef JFB_OTHER_CODING_SYSTEM
tvterm_finish_otherCS(p);
#endif
if (p->utf8DefaultIdx == 0) {
const char *en = tcaps_find_entry(p->caps,
"encoding.",
"UTF-8");
if (en != NULL) {
p->utf8DefaultIdx = tvterm_UTF8index(en);
}
}
p->utf8Idx = p->utf8DefaultIdx;
p->utf8remain = 0;
p->ucs2ch = 0;
return;
}
static int
tvterm_is_UTF8(TVterm *p)
{
return (p->utf8Idx != 0);
}
#endif
#ifdef JFB_OTHER_CODING_SYSTEM
int
tvterm_parse_otherCS(const char *en, TCodingSystem* otherCS)
{
TCsv farg;
const char *g;
memset(otherCS, 0, sizeof(*otherCS));
tcsv_init(&farg, en);
if (farg.cap != 4) {
tcsv_final(&farg);
return 0;
}
g = tcsv_get_token(&farg); /* g == "other" */
g = tcsv_get_token(&farg);
otherCS->fromcode = strdup(g);
g = tcsv_get_token(&farg); /* g == "iconv" */
g = tcsv_get_token(&farg);
otherCS->tocode = strdup(g);
tcsv_final(&farg);
return 1;
}
static void
tvterm_finish_otherCS(TVterm *p)
{
/* XXX restore ISO-2022 state? */
if (p->otherCS) {
TCodingSystem *o = p->otherCS;
int i;
/* restore designate/invoke state */
for (i = 0; i < 4; i++)
p->gIdx[i] = o->gSavedIdx[i];
tvterm_invoke_gx(p, &(p->gl), o->gSavedL);
tvterm_invoke_gx(p, &(p->gr), o->gSavedR);
p->tgl = p->gl;
p->tgr = p->gr;
p->knj1 = 0;
p->utf8Idx = o->utf8SavedIdx;
p->utf8remain = 0;
p->ucs2ch = 0;
if (o->cd != (iconv_t)(-1)) {
iconv_close(o->cd);
}
o->cd = (iconv_t)(-1);
if (o->fromcode)
free(o->fromcode);
o->fromcode = NULL;
if (o->tocode)
free(o->tocode);
o->tocode = NULL;
}
p->otherCS = NULL;
}
static void
tvterm_switch_to_otherCS(TVterm *p, TCodingSystem *ocs)
{
static TCodingSystem otherCS;
char *tocode = ocs->tocode;
int i;
tvterm_finish_otherCS(p);
/* save current designate/invoke */
ocs->gSavedL = p->gl.invokedGn;
ocs->gSavedR = p->gr.invokedGn;
for (i = 0; i < 4; i++)
ocs->gSavedIdx[i] = p->gIdx[i];
ocs->utf8SavedIdx = p->utf8Idx;
retry:
if (strcmp(ocs->tocode, "UTF-8") == 0) {
tvterm_switch_to_UTF8(p);
tocode = "UCS-2BE"; /* XXX */
} else {
int idx[6];
char *en;
en = tcaps_find_entry(p->caps, "encoding.", ocs->tocode);
if (en == NULL) {
free(ocs->tocode);
ocs->tocode = strdup("UTF-8");
goto retry;
}
if (tvterm_parse_encoding(en, idx) == 0) {
free(ocs->tocode);
ocs->tocode = strdup("UTF-8");
goto retry;
}
for (i = 0; i < 4; i++)
p->gIdx[i] = idx[2+i];
tvterm_invoke_gx(p, &(p->gl), idx[0]);
tvterm_invoke_gx(p, &(p->gr), idx[1]);
p->tgl = p->gl;
p->tgr = p->gr;
p->knj1 = 0;
}
ocs->cd = iconv_open(tocode, ocs->fromcode);
if (ocs->cd == (iconv_t)(-1)) {
if (strcmp(ocs->tocode, "UTF-8") == 0) {
free(ocs->tocode);
ocs->tocode = strdup("UTF-8");
goto retry;
}
goto FINALIZE;
}
/* ok */
memcpy(&otherCS, ocs, sizeof(otherCS));
memset(otherCS.inbuf, 0, sizeof(otherCS.inbuf));
otherCS.inbuflen = 0;
memset(otherCS.outbuf, 0, sizeof(otherCS.outbuf));
p->otherCS = &otherCS;
return;
FINALIZE:
free(ocs->fromcode);
free(ocs->tocode);
ocs->fromcode = NULL;
ocs->tocode = NULL;
return;
}
static int
tvterm_is_otherCS(TVterm *p)
{
return (p->otherCS != NULL);
}
#endif
void tvterm_set_default_encoding(TVterm* p, const char* en)
{
const char *g;
int i;
int idx[6];
TCsv farg;
int ncap;
tcsv_init(&farg, en);
ncap = farg.cap;
/* first token */
g = tcsv_get_token(&farg);
#ifdef JFB_OTHER_CODING_SYSTEM
if (strcmp(g, "other") == 0) {
/* other,<coding-system>,iconv,<std-coding-system> */
static TCodingSystem otherCS;
if (tvterm_parse_otherCS(en, &otherCS) == 0)
goto FINALIZE;
tvterm_switch_to_otherCS(p, &otherCS);
goto FINALIZE;
}
#endif
#ifdef JFB_UTF8
if (strcmp(g, "UTF-8") == 0) {
/* UTF-8,<fontsetname> */
p->utf8DefaultIdx = tvterm_UTF8index(en);
tvterm_switch_to_UTF8(p);
goto FINALIZE;
}
#endif
/* ISO-2022 */
if (tvterm_parse_encoding(en, idx) == 0) {
goto FINALIZE;
}
/* GL */
p->gDefaultL = idx[0];
/* GR */
p->gDefaultR = idx[1];
/* G0 .. G3 */
for (i = 0 ; i < 4 ; i++) {
p->gDefaultIdx[i] = idx[2+i];
}
FINALIZE:
tcsv_final(&farg);
}
void tvterm_set_default_invoke_and_designate(TVterm* p)
{
p->gIdx[0] = p->gDefaultIdx[0]; /* G0 <== ASCII */
p->gIdx[1] = p->gDefaultIdx[1]; /* G1 <== JIS X 0208 */
p->gIdx[2] = p->gDefaultIdx[2]; /* G2 <== ASCII */
p->gIdx[3] = p->gDefaultIdx[3]; /* G3 <== ASCII */
tvterm_invoke_gx(p, &(p->gl), p->gDefaultL);/* GL <== G0 */
tvterm_invoke_gx(p, &(p->gr), p->gDefaultR);/* GR <== G1 */
p->tgl = p->gl; /* Next char's GL <== GL */
p->tgr = p->gr; /* Next char's GR <== GR */
p->knj1 = 0;
#ifdef JFB_UTF8
p->utf8Idx = p->utf8DefaultIdx;
p->utf8remain = 0;
p->ucs2ch = 0;
#endif
p->altCs = FALSE;
}
void tvterm_start(TVterm* p)
{
p->pen.x = 0;
p->pen.y = 0;
p->xmax = p->xcap;
p->ymax = p->ycap;
p->tab = 8;
p->pen.fcol = 7;
p->pen.bcol = 0;
p->pen.attr = 0;
p->esc = NULL;
p->soft = FALSE;
p->ins = FALSE;
p->wrap = FALSE;
p->active = TRUE;
p->altCs = FALSE;
/* ISO-2022 */
p->escSignature = 0;
p->escGn = 0;
tvterm_set_default_invoke_and_designate(p);
p->cursor.x = 0;
p->cursor.y = 0;
p->cursor.on = TRUE;
p->cursor.shown = FALSE;
p->cursor.wide = FALSE;
p->cursor.width = gFontsWidth;
p->cursor.height = gFontsHeight;
p->tsize = p->xcap4 * p->ycap;
p->text = (u_int *)calloc(p->xcap4, p->ycap * sizeof(u_int));
p->attr = (u_char *)calloc(p->xcap4, p->ycap);
p->flag = (u_char *)calloc(p->xcap4, p->ycap);
ioctl(0, KDSETMODE, KD_GRAPHICS);
/*
* ioctl(0, TIOCGWINSZ, &text_win);
* cInfo.shown = FALSE;
* saved = FALSE;
* GraphMode();
ioctl(0, TIOCGWINSZ, p->winrect);
*/
/* */
tvterm_register_signal(p);
tvterm_set_window_size(p);
}
void tvterm_final(TVterm* p)
{
ioctl(0, KDSETMODE, KD_TEXT);
tpen_final(&(p->pen));
if (p->savedPen) {
tpen_final(p->savedPen);
free(p->savedPen);
p->savedPen = NULL;
}
if (p->savedPenSL) {
tpen_final(p->savedPenSL);
free(p->savedPenSL);
p->savedPenSL = NULL;
}
p->textHead = 0;
util_free(p->text);
util_free(p->attr);
util_free(p->flag);
}
void tvterm_push_current_pen(TVterm* p, TBool b)
{
TPen* t;
TPen** base;
base = b ? &(p->savedPen) : &(p->savedPenSL);
t = (TPen*)malloc(sizeof(TPen));
if (!t) {
return;
}
tpen_init(t);
tpen_copy(t, &(p->pen));
t->prev = *base;
*base = t;
}
void tvterm_pop_pen_and_set_currnt_pen(TVterm* p, TBool b)
{
TPen* t;
TPen** base;
base = b ? &(p->savedPen) : &(p->savedPenSL);
t = *base;
if (!t) {
return;
}
tpen_copy(&(p->pen), t);
if (p->pen.y < p->ymin) p->pen.y = p->ymin;
if (p->pen.y >= p->ymax-1) p->pen.y = p->ymax -1;
*base = t->prev;
free(t);
}
/*---------------------------------------------------------------------------*/
static inline int IS_GL_AREA(TVterm* p, u_char ch)
{
return (p->tgl.type & TFONT_FT_96CHAR) ? (0x1F < ch && ch < 0x80) :
(0x20 < ch && ch < 0x7F);
}
static inline int IS_GR_AREA(TVterm* p, u_char ch)
{
return (p->tgr.type & TFONT_FT_96CHAR) ? (0x9F < ch) :
(0xA0 < ch && ch < 0xFF);
}
static inline void INSERT_N_CHARS_IF_NEEDED(TVterm* p, int n)
{
if (p->ins) {
tvterm_insert_n_chars(p, n);
}
}
static inline void SET_WARP_FLAG_IF_NEEDED(TVterm* p)
{
if (p->pen.x == p->xmax-1) {
p->wrap = TRUE;
}
}
static int tvterm_put_normal_char(TVterm* p, u_char ch)
{
if (p->pen.x == p->xmax) {
p->wrap = TRUE;
p->pen.x --;
}
if (p->wrap) {
p->pen.x -= p->xmax -1;
if (p->pen.y == p->ymax -1) {
p->scroll++;
} else {
p->pen.y ++;
}
p->wrap = FALSE;
return -1;
}
if (p->knj1) { /* 漢字 第 2 バイト */
INSERT_N_CHARS_IF_NEEDED(p, 2);
tvterm_wput(p, p->knj1idx,
p->knj1h == FH_RIGHT ? p->knj1 | 0x80 : p->knj1 & 0x7F,
p->knj1h == FH_RIGHT ? ch | 0x80 : ch & 0x7F);
p->pen.x += 2;
p->knj1 = 0;
p->tgr = p->gr; p->tgl = p->gl;
} else if (IS_GL_AREA(p, ch)) {
if (p->tgl.type & TFONT_FT_DOUBLE) {
SET_WARP_FLAG_IF_NEEDED(p);
p->knj1 = ch;
p->knj1h = p->tgl.half;
p->knj1idx = p->tgl.idx;
} else {
INSERT_N_CHARS_IF_NEEDED(p, 1);
tvterm_sput(p, p->tgl.idx,
p->tgl.half == FH_RIGHT ? ch | 0x80: ch);
p->pen.x ++;
p->tgr = p->gr; p->tgl = p->gl;
}
} else if (IS_GR_AREA(p, ch)) {
if (p->tgr.type & TFONT_FT_DOUBLE) {
SET_WARP_FLAG_IF_NEEDED(p);
p->knj1 = ch;
p->knj1h = p->tgr.half;
p->knj1idx = p->tgr.idx;
} else {
INSERT_N_CHARS_IF_NEEDED(p, 1);
tvterm_sput(p, p->tgr.idx,
p->tgr.half == FH_LEFT ? ch & ~0x80: ch);
p->pen.x ++;
p->tgr = p->gr; p->tgl = p->gl;
}
} else if (ch == 0x20) {
INSERT_N_CHARS_IF_NEEDED(p, 1);
tvterm_sput(p, 0, 0x20);
p->pen.x ++;
p->tgr = p->gr; p->tgl = p->gl;
}
return 0;
}
#ifdef JFB_UTF8
static int tvterm_put_uchar(TVterm* p, u_int ch)
{
TFont *pf = &gFont[p->utf8Idx];
u_int w;
if (p->pen.x == p->xmax) {
p->wrap = TRUE;
p->pen.x --;
}
if (p->wrap) {
p->pen.x -= p->xmax -1;
if (p->pen.y == p->ymax -1) {
p->scroll++;
} else {
p->pen.y ++;
}
p->wrap = FALSE;
return -1;
}
pf->conv(pf, ch, &w);
if (pf->width == w) {
INSERT_N_CHARS_IF_NEEDED(p, 1);
tvterm_uput1(p, p->utf8Idx, ch);
p->pen.x ++;
} else {
INSERT_N_CHARS_IF_NEEDED(p, 2);
tvterm_uput2(p, p->utf8Idx, ch);
p->pen.x += 2;
}
p->utf8remain = 0;
p->ucs2ch = 0;
return 0;
}
#endif
int tvterm_iso_C0_set(TVterm* p, u_char ch)
{
switch(ch) {
case ISO_BS:
if (p->pen.x) {
p->pen.x --;
}
p->wrap = FALSE;
break;
case ISO_HT:
p->pen.x += p->tab - (p->pen.x % p->tab);
p->wrap = FALSE;
if (p->pen.x < p->xmax) {
break;
}
p->pen.x -= p->xmax;
/* fail into next case */
case ISO_VT:
case ISO_FF:
#ifdef JFB_OTHER_CODING_SYSTEM
if (!tvterm_is_otherCS(p))
#endif
tvterm_set_default_invoke_and_designate(p);
/* fail into next case */
case ISO_LF:
p->wrap = FALSE;
if (p->pen.y == p->ymax -1) {
p->scroll ++;
} else {
p->pen.y ++;
}
break;
case ISO_CR:
p->pen.x = 0;
p->wrap = FALSE;
break;
case UNIVERSAL_ESC:
p->esc = tvterm_esc_start;
p->escSignature = 0;
p->escGn = 0;
return 1;
case ISO_LS1:
if (!tvterm_is_ISO2022(p))
break;
tvterm_invoke_gx(p, &(p->gl), 1); /* GL <== G1 */
p->tgl = p->gl;
return 1;
case ISO_LS0:
if (!tvterm_is_ISO2022(p))
break;
tvterm_invoke_gx(p, &(p->gl), 0); /* GL <== G0 */
p->tgl = p->gl;
return 1;
default:
break;
}
return 0;
}
int tvterm_iso_C1_set(TVterm* p, u_char ch)
{
switch (ch) {
case ISO_SS2: /* single shift 2 */
tvterm_invoke_gx(p, &(p->tgr), 2); /* GR <== G2 */
return 1;
case ISO_SS3: /* single shift 3 */
tvterm_invoke_gx(p, &(p->tgr), 3); /* GR <== G3 */
return 1;
default:
break;
}
return 0;
}
#ifdef JFB_UTF8
#define UTF8_CHECK_START(p) { \
if ((p)->utf8remain != 0) { \
(p)->ucs2ch = 0; \
(p)->utf8remain = 0; \
} \
}
int
tvterm_put_utf8_char(TVterm *p, u_char ch)
{
int rev;
if (ch < 0x7F) {
UTF8_CHECK_START(p);
p->ucs2ch = ch;
} else if ((ch & 0xC0) == 0x80) {
if (p->utf8remain == 0) {
/* illegal UTF-8 sequence? */
p->ucs2ch = ch;
} else {
p->ucs2ch <<= 6;
p->ucs2ch |= (ch & 0x3F);
p->utf8remain--;
if (p->utf8remain > 0) {
return p->utf8remain;
}
}
} else if ((ch & 0xE0) == 0xC0) {
UTF8_CHECK_START(p);
p->utf8remain = 1;
p->ucs2ch = (ch & 0x1F);
return p->utf8remain;
} else if ((ch & 0xF0) == 0xE0) {
UTF8_CHECK_START(p);
p->utf8remain = 2;
p->ucs2ch = (ch & 0x0F);
return p->utf8remain;
} else {
/* XXX: support UCS2 only */
}
if (p->altCs
&& (p->ucs2ch < 127)
&& (IS_GL_AREA(p, (u_char)(p->ucs2ch & 0x0ff))))
rev = tvterm_put_normal_char(p, (p->ucs2ch & 0x0ff));
else
rev = tvterm_put_uchar(p, p->ucs2ch);
if (rev < 0) {
p->ucs2ch >>= 6;
if (p->ucs2ch)
p->utf8remain ++;
}
return rev;
}
#endif
#ifdef JFB_OTHER_CODING_SYSTEM
int
tvterm_put_otherCS_char(TVterm *p, u_char ch)
{
int rev;
char *inbuf;
size_t inbuflen;
char *outbuf;
size_t outbuflen;
size_t s;
int i;
if (p->otherCS->inbuflen >= sizeof(p->otherCS->inbuf)-1) {
/* XXX: too long? */
p->otherCS->inbuflen = 0;
}
p->otherCS->inbuf[p->otherCS->inbuflen] = ch;
p->otherCS->inbuflen++;
inbuf = p->otherCS->inbuf;
inbuflen = p->otherCS->inbuflen;
outbuf = p->otherCS->outbuf;
outbuflen = sizeof(p->otherCS->outbuf);
s = iconv(p->otherCS->cd, &inbuf, &inbuflen, &outbuf, &outbuflen);
if (s == (size_t)(-1)) {
switch (errno) {
case E2BIG:
p->otherCS->inbuflen = 0;
return 0;
case EILSEQ: /* illegal sequence */
p->otherCS->inbuflen = 0;
return 0;
case EINVAL: /* incomplete multibyte */
return 0;
}
}
/* output bytes */
s = sizeof(p->otherCS->outbuf) - outbuflen;
if (strcmp(p->otherCS->tocode, "UTF-8") == 0 && p->altCs == FALSE) {
p->ucs2ch = 0;
for (i = 0; i < s; i++) {
p->ucs2ch <<= 8;
p->ucs2ch |= (p->otherCS->outbuf[i] & 0x0ff);
}
rev = tvterm_put_uchar(p, p->ucs2ch);
if (rev < 0) {
p->otherCS->inbuflen--;
return rev;
}
p->otherCS->inbuflen = 0;
return rev;
} else {
for (i = 0; i < s; i++) {
u_char c = p->otherCS->outbuf[i];
rev = tvterm_put_normal_char(p, c);
if (rev < 0) {
p->otherCS->inbuflen--;
return rev;
}
}
p->otherCS->inbuflen = 0;
return 0;
}
}
#endif
void tvterm_emulate(TVterm* p, const char *buff, int nchars)
{
u_char ch;
int rev;
int cn;
while (nchars-- > 0) {
ch = *(buff++);
if (!ch) {
continue;
} else if (p->esc) {
p->esc(p, ch);
} else if (ch < 0x20) {
cn = tvterm_iso_C0_set(p, ch);
if (cn) {
continue;
}
#ifdef JFB_OTHER_CODING_SYSTEM
} else if (tvterm_is_otherCS(p)) {
rev = tvterm_put_otherCS_char(p, ch);
if (rev >= 0) {
continue;
} else if (rev < 0) {
nchars -= rev;
buff += rev;
}
#endif
#ifdef JFB_UTF8
} else if (tvterm_is_UTF8(p)) {
rev = tvterm_put_utf8_char(p, ch);
if (rev >= 0) {
continue;
} else if (rev < 0) {
nchars -= rev;
buff += rev;
}
#endif
} else if ((0x7F < ch) && (ch < 0xA0)) {
cn = tvterm_iso_C1_set(p, ch);
if (cn) {
continue;
}
} else if (ch == ISO_DEL) {
/* nothing to do. */
} else {
rev = tvterm_put_normal_char(p, ch);
if (rev == 0) {
continue;
} else if (rev < 0) {
nchars -= rev;
buff += rev;
}
}
if (p->scroll > 0) {
tvterm_text_scroll_up(p, p->scroll);
} else if (p->scroll < 0) {
tvterm_text_scroll_down(p, -(p->scroll));
}
p->scroll = 0;
}
}
#define ESC_ISO_GnDx(n, x) \
{\
p->escSignature |= (x); p->escGn = (n);\
p->esc = tvterm_esc_designate_font;\
}
#define Fe(x) ((x)-0x40)
static void tvterm_esc_start(TVterm* p, u_char ch)
{
p->esc = NULL;
switch(ch) {
case Fe(ISO_CSI): /* 5/11 [ */
p->esc = tvterm_esc_bracket;
break;
#ifdef JFB_OTHER_CODING_SYSTEM
case Fe(ISO_OSC): /* 5/13 ] */
p->esc = tvterm_esc_rbracket;
break;
#endif
case ISO__MBS: /* 2/4 $ */
p->esc = tvterm_esc_traditional_multibyte_fix;
p->escSignature = TFONT_FT_DOUBLE;
break;
case ISO_DOCS: /* 2/5 % */
p->esc = tvterm_esc_designate_otherCS;
break;
case ISO_GZD4: /* 2/8 ( */
ESC_ISO_GnDx(0, TFONT_FT_94CHAR);
break;
case MULE__GZD6: /* 2/12 , */
ESC_ISO_GnDx(0, TFONT_FT_96CHAR);
break;
case ISO_G1D4: /* 2/9 ) */
ESC_ISO_GnDx(1, TFONT_FT_94CHAR);
break;
case ISO_G1D6: /* 2/13 - */
ESC_ISO_GnDx(1, TFONT_FT_96CHAR);
break;
case ISO_G2D4: /* 2/10 * */
ESC_ISO_GnDx(2, TFONT_FT_94CHAR);
break;
case ISO_G2D6: /* 2/14 . */
ESC_ISO_GnDx(2, TFONT_FT_96CHAR);
break;
case ISO_G3D4: /* 2/11 + */
ESC_ISO_GnDx(3, TFONT_FT_94CHAR);
break;
case ISO_G3D6: /* 2/15 / */
ESC_ISO_GnDx(3, TFONT_FT_96CHAR);
break;
case Fe(ISO_NEL): /* 4/5 E */
p->pen.x = 0;
p->wrap = FALSE;
case Fe(TERM_IND): /* 4/4 D */
if (p->pen.y == p->ymax -1) {
p->scroll ++;
} else {
p->pen.y ++;
}
break;
case Fe(ISO_RI): /* 4/13 M */
if (p->pen.y == p->ymin) {
p->scroll --;
} else {
p->pen.y --;
}
break;
case Fe(ISO_SS2): /* 4/14 N *//* 7bit single shift 2 */
tvterm_invoke_gx(p, &(p->tgl), 2); /* GL <== G2 */
break;
case Fe(ISO_SS3): /* 4/15 O *//* 7bit single shift 3 */
tvterm_invoke_gx(p, &(p->tgl), 3); /* GL <== G3 */
break;
case ISO_RIS: /* 6/3 c */
p->pen.fcol = 7;