Receive only a wchar_t in tchar()
It makes simpler the conversion from utf8 input string and makes simpler the checks done in tputc, but it still requires a lot of additional conversions that will be removed later.
This commit is contained in:
Roberto E. Vargas Caballero
parent
d65ebe9aed
commit
e8f1308586
150
st.c
150
st.c
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@ -379,20 +379,20 @@ static void tmoveato(int, int);
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static void tnew(int, int);
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static void tnewline(int);
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static void tputtab(int);
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static void tputc(char *, int);
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static void tputc(wchar_t);
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static void treset(void);
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static void tresize(int, int);
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static void tscrollup(int, int);
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static void tscrolldown(int, int);
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static void tsetattr(int *, int);
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static void tsetchar(char *, Glyph *, int, int);
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static void tsetchar(wchar_t, Glyph *, int, int);
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static void tsetscroll(int, int);
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static void tswapscreen(void);
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static void tsetdirt(int, int);
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static void tsetdirtattr(int);
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static void tsetmode(bool, bool, int *, int);
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static void tfulldirt(void);
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static void techo(char *, int);
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static void techo(wchar_t);
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static void tcontrolcode(uchar );
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static void tdectest(char );
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static int32_t tdefcolor(int *, int *, int);
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@ -1251,7 +1251,6 @@ ttyread(void) {
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static char buf[BUFSIZ];
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static int buflen = 0;
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char *ptr;
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char s[UTF_SIZ];
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int charsize; /* size of utf8 char in bytes */
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wchar_t unicodep;
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int ret;
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@ -1264,8 +1263,7 @@ ttyread(void) {
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buflen += ret;
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ptr = buf;
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while((charsize = utf8decode(ptr, &unicodep, buflen))) {
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utf8encode(unicodep, s);
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tputc(s, charsize);
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tputc(unicodep);
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ptr += charsize;
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buflen -= charsize;
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}
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@ -1282,9 +1280,17 @@ ttywrite(const char *s, size_t n) {
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void
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ttysend(char *s, size_t n) {
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int len;
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wchar_t u;
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ttywrite(s, n);
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if(IS_SET(MODE_ECHO))
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techo(s, n);
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if(IS_SET(MODE_ECHO)) {
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while ((len = utf8decode(s, &u, n)) != 0) {
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techo(u);
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n -= len;
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s += len;
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}
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}
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}
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void
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@ -1534,7 +1540,7 @@ tmoveto(int x, int y) {
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}
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void
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tsetchar(char *c, Glyph *attr, int x, int y) {
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tsetchar(wchar_t u, Glyph *attr, int x, int y) {
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static char *vt100_0[62] = { /* 0x41 - 0x7e */
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"↑", "↓", "→", "←", "█", "▚", "☃", /* A - G */
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0, 0, 0, 0, 0, 0, 0, 0, /* H - O */
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@ -1545,16 +1551,21 @@ tsetchar(char *c, Glyph *attr, int x, int y) {
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"⎻", "─", "⎼", "⎽", "├", "┤", "┴", "┬", /* p - w */
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"│", "≤", "≥", "π", "≠", "£", "·", /* x - ~ */
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};
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char c[UTF_SIZ];
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c[0] = '\0';
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/*
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* The table is proudly stolen from rxvt.
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*/
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if(term.trantbl[term.charset] == CS_GRAPHIC0) {
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if(BETWEEN(c[0], 0x41, 0x7e) && vt100_0[c[0] - 0x41]) {
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c = vt100_0[c[0] - 0x41];
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if(BETWEEN(u, 0x41, 0x7e) && vt100_0[u - 0x41]) {
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strcpy(c, vt100_0[u - 0x41]);
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}
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}
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if (c[0] == '\0')
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utf8encode(u, c);
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if(term.line[y][x].mode & ATTR_WIDE) {
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if(x+1 < term.col) {
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term.line[y][x+1].c[0] = ' ';
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@ -2343,26 +2354,18 @@ tputtab(int n) {
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}
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void
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techo(char *buf, int len) {
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for(; len > 0; buf++, len--) {
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char c = *buf;
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if(ISCONTROL((uchar) c)) { /* control code */
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if(c & 0x80) {
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c &= 0x7f;
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tputc("^", 1);
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tputc("[", 1);
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} else if(c != '\n' && c != '\r' && c != '\t') {
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c ^= 0x40;
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tputc("^", 1);
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}
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tputc(&c, 1);
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} else {
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break;
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techo(wchar_t u) {
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if(ISCONTROL(u)) { /* control code */
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if(u & 0x80) {
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u &= 0x7f;
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tputc('^');
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tputc('[');
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} else if(u != '\n' && u != '\r' && u != '\t') {
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u ^= 0x40;
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tputc('^');
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}
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}
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if(len)
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tputc(buf, len);
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tputc(u);
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}
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void
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@ -2380,13 +2383,12 @@ tdeftran(char ascii) {
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void
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tdectest(char c) {
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static char E[UTF_SIZ] = "E";
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int x, y;
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if(c == '8') { /* DEC screen alignment test. */
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for(x = 0; x < term.col; ++x) {
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for(y = 0; y < term.row; ++y)
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tsetchar(E, &term.c.attr, x, y);
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tsetchar('E', &term.c.attr, x, y);
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}
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}
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}
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@ -2417,7 +2419,6 @@ tstrsequence(uchar c) {
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void
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tcontrolcode(uchar ascii) {
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static char question[UTF_SIZ] = "?";
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switch(ascii) {
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case '\t': /* HT */
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@ -2458,7 +2459,7 @@ tcontrolcode(uchar ascii) {
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term.charset = 1;
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return;
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case '\032': /* SUB */
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tsetchar(question, &term.c.attr, term.c.x, term.c.y);
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tsetchar('?', &term.c.attr, term.c.x, term.c.y);
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case '\030': /* CAN */
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csireset();
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break;
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@ -2579,26 +2580,20 @@ eschandle(uchar ascii) {
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}
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void
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tputc(char *c, int len) {
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uchar ascii;
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tputc(wchar_t u) {
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char s[UTF_SIZ];
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int len;
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bool control;
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wchar_t unicodep;
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int width;
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Glyph *gp;
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if(len == 1) {
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width = 1;
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unicodep = ascii = *c;
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} else {
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utf8decode(c, &unicodep, UTF_SIZ);
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width = wcwidth(unicodep);
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control = ISCONTROLC1(unicodep);
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ascii = unicodep;
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}
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width = wcwidth(u);
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control = ISCONTROLC1(u);
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if(IS_SET(MODE_PRINT))
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tprinter(unicodep);
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control = ISCONTROL(unicodep);
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tprinter(u);
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control = ISCONTROL(u);
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/*
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* STR sequence must be checked before anything else
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@ -2607,31 +2602,33 @@ tputc(char *c, int len) {
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* character.
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*/
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if(term.esc & ESC_STR) {
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if(width == 1 &&
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(ascii == '\a' || ascii == 030 ||
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ascii == 032 || ascii == 033 ||
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ISCONTROLC1(unicodep))) {
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if(u == '\a' || u == 030 || u == 032 || u == 033 ||
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ISCONTROLC1(u)) {
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term.esc &= ~(ESC_START|ESC_STR);
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term.esc |= ESC_STR_END;
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} else if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
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memmove(&strescseq.buf[strescseq.len], c, len);
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strescseq.len += len;
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return;
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} else {
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/*
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* Here is a bug in terminals. If the user never sends
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* some code to stop the str or esc command, then st
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* will stop responding. But this is better than
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* silently failing with unknown characters. At least
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* then users will report back.
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*
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* In the case users ever get fixed, here is the code:
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*/
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/*
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* term.esc = 0;
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* strhandle();
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*/
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return;
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/* TODO: make csiescseq.buf buffer of wchar_t */
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len = utf8encode(u, s);
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if(strescseq.len + len < sizeof(strescseq.buf) - 1) {
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memmove(&strescseq.buf[strescseq.len], s, len);
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strescseq.len += len;
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return;
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} else {
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/*
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* Here is a bug in terminals. If the user never sends
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* some code to stop the str or esc command, then st
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* will stop responding. But this is better than
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* silently failing with unknown characters. At least
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* then users will report back.
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*
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* In the case users ever get fixed, here is the code:
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*/
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/*
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* term.esc = 0;
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* strhandle();
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*/
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return;
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}
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}
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}
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@ -2641,15 +2638,16 @@ tputc(char *c, int len) {
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* they must not cause conflicts with sequences.
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*/
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if(control) {
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tcontrolcode(ascii);
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tcontrolcode(u);
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/*
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* control codes are not shown ever
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*/
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return;
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} else if(term.esc & ESC_START) {
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if(term.esc & ESC_CSI) {
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csiescseq.buf[csiescseq.len++] = ascii;
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if(BETWEEN(ascii, 0x40, 0x7E)
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/* TODO: make csiescseq.buf buffer of wchar_t */
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csiescseq.buf[csiescseq.len++] = u;
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if(BETWEEN(u, 0x40, 0x7E)
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|| csiescseq.len >= \
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sizeof(csiescseq.buf)-1) {
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term.esc = 0;
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@ -2658,11 +2656,11 @@ tputc(char *c, int len) {
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}
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return;
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} else if(term.esc & ESC_ALTCHARSET) {
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tdeftran(ascii);
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tdeftran(u);
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} else if(term.esc & ESC_TEST) {
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tdectest(ascii);
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tdectest(u);
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} else {
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if (!eschandle(ascii))
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if (!eschandle(u))
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return;
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/* sequence already finished */
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}
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@ -2688,7 +2686,7 @@ tputc(char *c, int len) {
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if(term.c.x+width > term.col)
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tnewline(1);
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tsetchar(c, &term.c.attr, term.c.x, term.c.y);
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tsetchar(u, &term.c.attr, term.c.x, term.c.y);
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if(width == 2) {
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gp->mode |= ATTR_WIDE;
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