Make tputc, tsetchar and techo accept unicode - st - simple terminal
HTML git clone https://git.parazyd.org/st
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---
DIR commit 0622ad9badefa985231ddede467d2bd8d94e93e4
DIR parent 21f765426c36991edd8b14f4989d66187e9ff597
HTML Author: noname@inventati.org <noname@inventati.org>
Date: Tue, 21 Apr 2015 23:29:15 +0200
Make tputc, tsetchar and techo accept unicode
Diffstat:
M st.c | 107 +++++++++++++------------------
1 file changed, 45 insertions(+), 62 deletions(-)
---
DIR diff --git a/st.c b/st.c
@@ -383,20 +383,20 @@ static void tmoveato(int, int);
static void tnew(int, int);
static void tnewline(int);
static void tputtab(int);
-static void tputc(char *, int);
+static void tputc(long);
static void treset(void);
static void tresize(int, int);
static void tscrollup(int, int);
static void tscrolldown(int, int);
static void tsetattr(int *, int);
-static void tsetchar(char *, Glyph *, int, int);
+static void tsetchar(long, Glyph *, int, int);
static void tsetscroll(int, int);
static void tswapscreen(void);
static void tsetdirt(int, int);
static void tsetdirtattr(int);
static void tsetmode(bool, bool, int *, int);
static void tfulldirt(void);
-static void techo(char *, int);
+static void techo(long);
static void tcontrolcode(uchar );
static void tdectest(char );
static int32_t tdefcolor(int *, int *, int);
@@ -1332,7 +1332,6 @@ ttyread(void) {
static char buf[BUFSIZ];
static int buflen = 0;
char *ptr;
- char s[UTF_SIZ];
int charsize; /* size of utf8 char in bytes */
long unicodep;
int ret;
@@ -1345,8 +1344,7 @@ ttyread(void) {
buflen += ret;
ptr = buf;
while((charsize = utf8decode(ptr, &unicodep, buflen))) {
- utf8encode(unicodep, s);
- tputc(s, charsize);
+ tputc(unicodep);
ptr += charsize;
buflen -= charsize;
}
@@ -1363,9 +1361,16 @@ ttywrite(const char *s, size_t n) {
void
ttysend(char *s, size_t n) {
+ int len;
+ long u;
+
ttywrite(s, n);
if(IS_SET(MODE_ECHO))
- techo(s, n);
+ while((len = utf8decode(s, &u, n)) > 0) {
+ techo(u);
+ n -= len;
+ s += len;
+ }
}
void
@@ -1614,7 +1619,7 @@ tmoveto(int x, int y) {
}
void
-tsetchar(char *c, Glyph *attr, int x, int y) {
+tsetchar(long u, Glyph *attr, int x, int y) {
static char *vt100_0[62] = { /* 0x41 - 0x7e */
"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
@@ -1629,11 +1634,9 @@ tsetchar(char *c, Glyph *attr, int x, int y) {
/*
* The table is proudly stolen from rxvt.
*/
- if(term.trantbl[term.charset] == CS_GRAPHIC0) {
- if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
- c = vt100_0[c[0] - 0x41];
- }
- }
+ if(term.trantbl[term.charset] == CS_GRAPHIC0 &&
+ BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41])
+ utf8decode(vt100_0[u - 0x41], &u, UTF_SIZ);
if(term.line[y][x].mode & ATTR_WIDE) {
if(x+1 < term.col) {
@@ -1647,7 +1650,7 @@ tsetchar(char *c, Glyph *attr, int x, int y) {
term.dirty[y] = 1;
term.line[y][x] = *attr;
- utf8decode(c, &term.line[y][x].u, UTF_SIZ);
+ term.line[y][x].u = u;
}
void
@@ -2431,26 +2434,18 @@ tputtab(int n) {
}
void
-techo(char *buf, int len) {
- for(; len > 0; buf++, len--) {
- char c = *buf;
-
- if(ISCONTROL((uchar) c)) { /* control code */
- if(c & 0x80) {
- c &= 0x7f;
- tputc("^", 1);
- tputc("[", 1);
- } else if(c != '\n' && c != '\r' && c != '\t') {
- c ^= 0x40;
- tputc("^", 1);
- }
- tputc(&c, 1);
- } else {
- break;
+techo(long u) {
+ if(ISCONTROL(u)) { /* control code */
+ if(u & 0x80) {
+ u &= 0x7f;
+ tputc('^');
+ tputc('[');
+ } else if(u != '\n' && u != '\r' && u != '\t') {
+ u ^= 0x40;
+ tputc('^');
}
}
- if(len)
- tputc(buf, len);
+ tputc(u);
}
void
@@ -2468,13 +2463,12 @@ tdeftran(char ascii) {
void
tdectest(char c) {
- static char E[UTF_SIZ] = "E";
int x, y;
if(c == '8') { /* DEC screen alignment test. */
for(x = 0; x < term.col; ++x) {
for(y = 0; y < term.row; ++y)
- tsetchar(E, &term.c.attr, x, y);
+ tsetchar('E', &term.c.attr, x, y);
}
}
}
@@ -2502,8 +2496,6 @@ tstrsequence(uchar c) {
void
tcontrolcode(uchar ascii) {
- static char question[UTF_SIZ] = "?";
-
switch(ascii) {
case '\t': /* HT */
tputtab(1);
@@ -2541,7 +2533,7 @@ tcontrolcode(uchar ascii) {
term.charset = 1 - (ascii - '\016');
return;
case '\032': /* SUB */
- tsetchar(question, &term.c.attr, term.c.x, term.c.y);
+ tsetchar('?', &term.c.attr, term.c.x, term.c.y);
case '\030': /* CAN */
csireset();
break;
@@ -2665,28 +2657,21 @@ eschandle(uchar ascii) {
}
void
-tputc(char *c, int len) {
- uchar ascii;
+tputc(long u) {
+ char c[UTF_SIZ];
bool control;
- long unicodep;
- int width;
+ int width, len;
Glyph *gp;
- if(len == 1) {
+ len = utf8encode(u, c);
+ if((width = wcwidth(u)) == -1) {
+ memcpy(c, "\357\277\275", 4); /* UTF_INVALID */
width = 1;
- unicodep = ascii = *c;
- } else {
- utf8decode(c, &unicodep, UTF_SIZ);
- if ((width = wcwidth(unicodep)) == -1) {
- c = "\357\277\275"; /* UTF_INVALID */
- width = 1;
- }
- ascii = unicodep;
}
if(IS_SET(MODE_PRINT))
tprinter(c, len);
- control = ISCONTROL(unicodep);
+ control = ISCONTROL(u);
/*
* STR sequence must be checked before anything else
@@ -2695,10 +2680,8 @@ tputc(char *c, int len) {
* character.
*/
if(term.esc & ESC_STR) {
- if(len == 1 &&
- (ascii == '\a' || ascii == 030 ||
- ascii == 032 || ascii == 033 ||
- ISCONTROLC1(unicodep))) {
+ if(u == '\a' || u == 030 || u == 032 || u == 033 ||
+ ISCONTROLC1(u)) {
term.esc &= ~(ESC_START|ESC_STR);
term.esc |= ESC_STR_END;
} else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
@@ -2729,15 +2712,15 @@ tputc(char *c, int len) {
* they must not cause conflicts with sequences.
*/
if(control) {
- tcontrolcode(ascii);
+ tcontrolcode(u);
/*
* control codes are not shown ever
*/
return;
} else if(term.esc & ESC_START) {
if(term.esc & ESC_CSI) {
- csiescseq.buf[csiescseq.len++] = ascii;
- if(BETWEEN(ascii, 0x40, 0x7E)
+ csiescseq.buf[csiescseq.len++] = u;
+ if(BETWEEN(u, 0x40, 0x7E)
|| csiescseq.len >= \
sizeof(csiescseq.buf)-1) {
term.esc = 0;
@@ -2746,11 +2729,11 @@ tputc(char *c, int len) {
}
return;
} else if(term.esc & ESC_ALTCHARSET) {
- tdeftran(ascii);
+ tdeftran(u);
} else if(term.esc & ESC_TEST) {
- tdectest(ascii);
+ tdectest(u);
} else {
- if (!eschandle(ascii))
+ if (!eschandle(u))
return;
/* sequence already finished */
}
@@ -2779,7 +2762,7 @@ tputc(char *c, int len) {
gp = &term.line[term.c.y][term.c.x];
}
- tsetchar(c, &term.c.attr, term.c.x, term.c.y);
+ tsetchar(u, &term.c.attr, term.c.x, term.c.y);
if(width == 2) {
gp->mode |= ATTR_WIDE;