utf8 support! print text in delicious unicode greatness! all hail to the glorious Damian Okrasa for the patch!
TERM set back to xterm. changed default fonts. Note: drawing is now (even) slower.
This commit is contained in:
Aurélien Aptel
parent
d581bfccd7
commit
9b74fcadc4
29
config.def.h
29
config.def.h
@ -1,7 +1,7 @@
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#define TAB 8
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#define TNAME "st-256color"
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#define FONT "-misc-*-medium-r-semicondensed-*-13-*-*-*-*-*-iso8859-*"
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#define BOLDFONT "-misc-*-bold-r-semicondensed-*-13-*-*-*-*-*-iso8859-*"
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#define TNAME "xterm"
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#define FONT "-*-*-medium-r-*-*-*-120-75-75-*-60-*-*"
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#define BOLDFONT "-*-*-bold-r-*-*-*-120-75-75-*-60-*-*"
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#define BORDER 2
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#define SHELL "/bin/sh"
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@ -55,31 +55,8 @@ static Key key[] = {
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/* Line drawing characters (sometime specific to each font...) */
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static char gfx[] = {
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['`'] = 0x01,
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['a'] = 0x02,
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['f'] = 'o',
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['g'] = '+',
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['i'] = '#',
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['j'] = 0x0B,
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['k'] = 0x0C,
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['l'] = 0x0D,
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['m'] = 0x0E,
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['n'] = 0x0F,
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['o'] = 0x10,
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['p'] = 0x11,
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['q'] = 0x12,
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['r'] = 0x13,
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['s'] = 0x14,
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['t'] = 0x15,
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['u'] = 0x16,
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['v'] = 0x17,
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['w'] = 0x18,
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['x'] = 0x19,
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['y'] = 0x1A,
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['z'] = 0x1B,
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['{'] = 0x1C,
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['|'] = 0x1D,
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['}'] = 0x1E,
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['~'] = 0x1F,
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[255] = 0,
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};
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322
st.c
322
st.c
@ -38,6 +38,7 @@
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#define ESC_BUF_SIZ 256
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#define ESC_ARG_SIZ 16
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#define DRAW_BUF_SIZ 1024
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#define UTF_SIZ 4
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#define SERRNO strerror(errno)
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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@ -61,8 +62,11 @@ enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
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enum { SCREEN_UPDATE, SCREEN_REDRAW };
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enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
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#undef B0
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enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
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typedef struct {
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char c; /* character code */
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char c[UTF_SIZ]; /* character code */
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char mode; /* attribute flags */
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int fg; /* foreground */
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int bg; /* background */
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@ -127,11 +131,19 @@ typedef struct {
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char s[ESC_BUF_SIZ];
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} Key;
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typedef struct {
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XFontSet fs;
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short lbearing;
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short rbearing;
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int ascent;
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int descent;
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} FontInfo;
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/* Drawing Context */
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typedef struct {
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unsigned long col[256];
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XFontStruct* font;
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XFontStruct* bfont;
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FontInfo font;
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FontInfo bfont;
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GC gc;
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} DC;
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@ -167,14 +179,13 @@ static void tmoveto(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(void);
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static void tputc(char);
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static void tputs(char*, int);
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static void tputc(char*);
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static void treset(void);
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static int 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);
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static void tsetchar(char*);
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static void tsetscroll(int, int);
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static void tswapscreen(void);
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@ -183,7 +194,7 @@ static void ttyread(void);
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static void ttyresize(int, int);
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static void ttywrite(const char *, size_t);
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static void xdraws(char *, Glyph, int, int, int);
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static void xdraws(char *, Glyph, int, int, int, int);
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static void xhints(void);
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static void xclear(int, int, int, int);
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static void xdrawcursor(void);
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@ -205,6 +216,11 @@ static void bmotion(XEvent *);
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static void selection_notify(XEvent *);
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static void selection_request(XEvent *);
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static int stou(char *, long *);
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static int utos(long *, char *);
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static int slen(char *);
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static int canstou(char *, int);
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static void (*handler[LASTEvent])(XEvent *) = {
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[KeyPress] = kpress,
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[ConfigureNotify] = resize,
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@ -231,6 +247,133 @@ static Selection sel;
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static char *opt_cmd = NULL;
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static char *opt_title = NULL;
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/* UTF-8 decode */
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static int
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stou(char *s, long *u)
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{
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unsigned char c;
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int i, n, rtn;
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rtn = 1;
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c = *s;
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if(~c&B7) { /* 0xxxxxxx */
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*u = c;
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return rtn;
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} else if ((c&(B7|B6|B5)) == (B7|B6)) { /* 110xxxxx */
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*u = c&(B4|B3|B2|B1|B0);
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n = 1;
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} else if ((c&(B7|B6|B5|B4)) == (B7|B6|B5)) { /* 1110xxxx */
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*u = c&(B3|B2|B1|B0);
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n = 2;
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} else if ((c&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4)) { /* 11110xxx */
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*u = c&(B2|B1|B0);
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n = 3;
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} else
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goto invalid;
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for (i=n,++s; i>0; --i,++rtn,++s) {
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c = *s;
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if ((c&(B7|B6)) != B7) /* 10xxxxxx */
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goto invalid;
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*u <<= 6;
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*u |= c&(B5|B4|B3|B2|B1|B0);
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}
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if ((n == 1 && *u < 0x80) ||
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(n == 2 && *u < 0x800) ||
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(n == 3 && *u < 0x10000) ||
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(*u >= 0xD800 && *u <= 0xDFFF))
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goto invalid;
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return rtn;
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invalid:
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*u = 0xFFFD;
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return rtn;
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}
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/* UTF-8 encode */
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static int
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utos(long *u, char *s)
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{
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unsigned char *sp;
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unsigned long uc;
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int i, n;
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sp = (unsigned char*) s;
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uc = *u;
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if (uc < 0x80) {
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*sp = uc; /* 0xxxxxxx */
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return 1;
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} else if (*u < 0x800) {
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*sp = (uc >> 6) | (B7|B6); /* 110xxxxx */
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n = 1;
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} else if (uc < 0x10000) {
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*sp = (uc >> 12) | (B7|B6|B5); /* 1110xxxx */
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n = 2;
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} else if (uc <= 0x10FFFF) {
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*sp = (uc >> 18) | (B7|B6|B5|B4); /* 11110xxx */
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n = 3;
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} else {
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goto invalid;
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}
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for (i=n,++sp; i>0; --i,++sp)
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*sp = ((uc >> 6*(i-1)) & (B5|B4|B3|B2|B1|B0)) | B7; /* 10xxxxxx */
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return n+1;
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invalid:
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/* U+FFFD */
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*s++ = '\xEF';
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*s++ = '\xBF';
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*s = '\xBD';
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return 3;
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}
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/*
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* use this if your buffer is less than UTF_SIZ, it returns 1 if you can decode UTF-8
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* otherwise return 0
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*/
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static int
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canstou(char *s, int b)
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{
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unsigned char c;
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int n;
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c = *s;
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if (b < 1)
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return 0;
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else if (~c&B7)
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return 1;
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else if ((c&(B7|B6|B5)) == (B7|B6))
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n = 1;
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else if ((c&(B7|B6|B5|B4)) == (B7|B6|B5))
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n = 2;
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else if ((c&(B7|B6|B5|B4|B3)) == (B7|B6|B5|B4))
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n = 3;
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else
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return 1;
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for (--b,++s; n>0&&b>0; --n,--b,++s) {
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c = *s;
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if ((c&(B7|B6)) != B7)
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break;
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}
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if (n > 0 && b == 0)
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return 0;
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else
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return 1;
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}
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static int
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slen(char *s)
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{
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unsigned char c;
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c = *s;
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if (~c&B7)
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return 1;
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else if ((c&(B7|B6|B5)) == (B7|B6))
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return 2;
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else if ((c&(B7|B6|B5|B4)) == (B7|B6|B5))
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return 3;
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else
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return 4;
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}
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void
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selinit(void) {
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sel.mode = 0;
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@ -268,15 +411,18 @@ static void bpress(XEvent *e) {
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static char *getseltext() {
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char *str, *ptr;
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int ls, x, y, sz;
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int ls, x, y, sz, sl;
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if(sel.bx == -1)
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return NULL;
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sz = (term.col+1) * (sel.e.y-sel.b.y+1);
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sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
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ptr = str = malloc(sz);
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for(y = 0; y < term.row; y++) {
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for(x = 0; x < term.col; x++)
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if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y)))
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*ptr = term.line[y][x].c, ptr++;
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if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) {
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sl = slen(term.line[y][x].c);
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memcpy(ptr, term.line[y][x].c, sl);
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ptr += sl;
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}
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if(ls)
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*ptr = '\n', ptr++;
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}
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@ -476,13 +622,24 @@ dump(char c) {
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void
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ttyread(void) {
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char buf[BUFSIZ];
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int ret;
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char buf[BUFSIZ], *ptr;
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char s[UTF_SIZ];
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int ret, br;
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static int buflen = 0;
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long u;
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if((ret = read(cmdfd, buf, LEN(buf))) < 0)
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if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0)
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die("Couldn't read from shell: %s\n", SERRNO);
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else
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tputs(buf, ret);
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else {
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buflen += ret;
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for(ptr=buf; buflen>=UTF_SIZ||canstou(ptr,buflen); buflen-=br) {
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br = stou(ptr, &u);
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utos(&u, s);
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tputc(s);
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ptr += br;
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}
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memcpy(buf, ptr, buflen);
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}
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}
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void
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@ -622,9 +779,9 @@ tmoveto(int x, int y) {
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}
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void
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tsetchar(char c) {
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tsetchar(char *c) {
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term.line[term.c.y][term.c.x] = term.c.attr;
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term.line[term.c.y][term.c.x].c = c;
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memcpy(term.line[term.c.y][term.c.x].c, c, UTF_SIZ);
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term.line[term.c.y][term.c.x].state |= GLYPH_SET;
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}
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@ -1025,30 +1182,31 @@ tputtab(void) {
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}
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void
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tputc(char c) {
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tputc(char *c) {
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char ascii = *c;
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if(term.esc & ESC_START) {
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if(term.esc & ESC_CSI) {
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escseq.buf[escseq.len++] = c;
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if(BETWEEN(c, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
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escseq.buf[escseq.len++] = ascii;
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if(BETWEEN(ascii, 0x40, 0x7E) || escseq.len >= ESC_BUF_SIZ) {
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term.esc = 0;
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csiparse(), csihandle();
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}
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/* TODO: handle other OSC */
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} else if(term.esc & ESC_OSC) {
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if(c == ';') {
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if(ascii == ';') {
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term.titlelen = 0;
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term.esc = ESC_START | ESC_TITLE;
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}
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} else if(term.esc & ESC_TITLE) {
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if(c == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
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if(ascii == '\a' || term.titlelen+1 >= ESC_TITLE_SIZ) {
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term.esc = 0;
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term.title[term.titlelen] = '\0';
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XStoreName(xw.dis, xw.win, term.title);
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} else {
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term.title[term.titlelen++] = c;
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term.title[term.titlelen++] = ascii;
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}
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} else if(term.esc & ESC_ALTCHARSET) {
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switch(c) {
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switch(ascii) {
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case '0': /* Line drawing crap */
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term.c.attr.mode |= ATTR_GFX;
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break;
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@ -1056,11 +1214,11 @@ tputc(char c) {
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term.c.attr.mode &= ~ATTR_GFX;
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break;
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default:
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printf("esc unhandled charset: ESC ( %c\n", c);
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printf("esc unhandled charset: ESC ( %c\n", ascii);
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}
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term.esc = 0;
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} else {
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switch(c) {
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switch(ascii) {
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case '[':
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term.esc |= ESC_CSI;
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break;
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@ -1109,12 +1267,13 @@ tputc(char c) {
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term.esc = 0;
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break;
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default:
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fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n", c, isprint(c)?c:'.');
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fprintf(stderr, "erresc: unknown sequence ESC 0x%02X '%c'\n",
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(unsigned char) ascii, isprint(ascii)?ascii:'.');
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term.esc = 0;
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}
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}
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} else {
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switch(c) {
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switch(ascii) {
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case '\t':
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tputtab();
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break;
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@ -1151,12 +1310,6 @@ tputc(char c) {
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}
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}
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void
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tputs(char *s, int len) {
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for(; len > 0; len--)
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tputc(*s++);
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}
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int
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tresize(int col, int row) {
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int i, x;
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@ -1308,21 +1461,53 @@ xhints(void)
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XSetWMProperties(xw.dis, xw.win, NULL, NULL, NULL, 0, &size, &wm, &class);
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}
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void
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xsetfontinfo(FontInfo *fi)
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{
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XFontStruct **xfonts;
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int fnum;
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int i;
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char **fontnames;
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fi->lbearing = 0;
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fi->rbearing = 0;
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fi->ascent = 0;
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fi->descent = 0;
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fnum = XFontsOfFontSet(fi->fs, &xfonts, &fontnames);
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for(i=0; i<fnum; i++,xfonts++,fontnames++) {
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puts(*fontnames);
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if(fi->ascent < (*xfonts)->ascent)
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fi->ascent = (*xfonts)->ascent;
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if(fi->descent < (*xfonts)->descent)
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fi->descent = (*xfonts)->descent;
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if(fi->rbearing < (*xfonts)->max_bounds.rbearing)
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fi->rbearing = (*xfonts)->max_bounds.rbearing;
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if(fi->lbearing < (*xfonts)->min_bounds.lbearing)
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fi->lbearing = (*xfonts)->min_bounds.lbearing;
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}
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}
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void
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xinit(void) {
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XSetWindowAttributes attrs;
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char **mc;
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char *ds;
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int nmc;
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if(!(xw.dis = XOpenDisplay(NULL)))
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die("Can't open display\n");
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xw.scr = XDefaultScreen(xw.dis);
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/* font */
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if(!(dc.font = XLoadQueryFont(xw.dis, FONT)) || !(dc.bfont = XLoadQueryFont(xw.dis, BOLDFONT)))
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die("Can't load font %s\n", dc.font ? BOLDFONT : FONT);
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if ((dc.font.fs = XCreateFontSet(xw.dis, FONT, &mc, &nmc, &ds)) == NULL ||
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(dc.bfont.fs = XCreateFontSet(xw.dis, BOLDFONT, &mc, &nmc, &ds)) == NULL)
|
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die("Can't load font %s\n", dc.font.fs ? BOLDFONT : FONT);
|
||||
xsetfontinfo(&dc.font);
|
||||
xsetfontinfo(&dc.bfont);
|
||||
|
||||
/* XXX: Assuming same size for bold font */
|
||||
xw.cw = dc.font->max_bounds.rbearing - dc.font->min_bounds.lbearing;
|
||||
xw.ch = dc.font->ascent + dc.font->descent;
|
||||
xw.cw = dc.font.rbearing - dc.font.lbearing;
|
||||
xw.ch = dc.font.ascent + dc.font.descent;
|
||||
|
||||
/* colors */
|
||||
xw.cmap = XDefaultColormap(xw.dis, xw.scr);
|
||||
@ -1366,9 +1551,9 @@ xinit(void) {
|
||||
}
|
||||
|
||||
void
|
||||
xdraws(char *s, Glyph base, int x, int y, int len) {
|
||||
xdraws(char *s, Glyph base, int x, int y, int cl, int sl) {
|
||||
unsigned long xfg, xbg;
|
||||
int winx = x*xw.cw, winy = y*xw.ch + dc.font->ascent, width = len*xw.cw;
|
||||
int winx = x*xw.cw, winy = y*xw.ch + dc.font.ascent, width = cl*xw.cw;
|
||||
int i;
|
||||
|
||||
if(base.mode & ATTR_REVERSE)
|
||||
@ -1378,9 +1563,9 @@ xdraws(char *s, Glyph base, int x, int y, int len) {
|
||||
|
||||
XSetBackground(xw.dis, dc.gc, xbg);
|
||||
XSetForeground(xw.dis, dc.gc, xfg);
|
||||
|
||||
|
||||
if(base.mode & ATTR_GFX)
|
||||
for(i = 0; i < len; i++) {
|
||||
for(i = 0; i < cl; i++) {
|
||||
char c = gfx[(unsigned int)s[i] % 256];
|
||||
if(c)
|
||||
s[i] = c;
|
||||
@ -1388,8 +1573,8 @@ xdraws(char *s, Glyph base, int x, int y, int len) {
|
||||
s[i] -= 0x5f;
|
||||
}
|
||||
|
||||
XSetFont(xw.dis, dc.gc, base.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
|
||||
XDrawImageString(xw.dis, xw.buf, dc.gc, winx, winy, s, len);
|
||||
XmbDrawImageString(xw.dis, xw.buf, base.mode & ATTR_BOLD ? dc.bfont.fs : dc.font.fs,
|
||||
dc.gc, winx, winy, s, sl);
|
||||
|
||||
if(base.mode & ATTR_UNDERLINE)
|
||||
XDrawLine(xw.dis, xw.buf, dc.gc, winx, winy+1, winx+width-1, winy+1);
|
||||
@ -1399,23 +1584,26 @@ void
|
||||
xdrawcursor(void) {
|
||||
static int oldx = 0;
|
||||
static int oldy = 0;
|
||||
Glyph g = {' ', ATTR_NULL, DefaultBG, DefaultCS, 0};
|
||||
int sl;
|
||||
Glyph g = {{' '}, ATTR_NULL, DefaultBG, DefaultCS, 0};
|
||||
|
||||
LIMIT(oldx, 0, term.col-1);
|
||||
LIMIT(oldy, 0, term.row-1);
|
||||
|
||||
if(term.line[term.c.y][term.c.x].state & GLYPH_SET)
|
||||
g.c = term.line[term.c.y][term.c.x].c;
|
||||
|
||||
memcpy(g.c, term.line[term.c.y][term.c.x].c, UTF_SIZ);
|
||||
|
||||
/* remove the old cursor */
|
||||
if(term.line[oldy][oldx].state & GLYPH_SET)
|
||||
xdraws(&term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1);
|
||||
else
|
||||
if(term.line[oldy][oldx].state & GLYPH_SET) {
|
||||
sl = slen(term.line[oldy][oldx].c);
|
||||
xdraws(term.line[oldy][oldx].c, term.line[oldy][oldx], oldx, oldy, 1, sl);
|
||||
} else
|
||||
xclear(oldx, oldy, oldx, oldy);
|
||||
|
||||
/* draw the new one */
|
||||
if(!(term.c.state & CURSOR_HIDE) && (xw.state & WIN_FOCUSED)) {
|
||||
xdraws(&g.c, g, term.c.x, term.c.y, 1);
|
||||
sl = slen(g.c);
|
||||
xdraws(g.c, g, term.c.x, term.c.y, 1, sl);
|
||||
oldx = term.c.x, oldy = term.c.y;
|
||||
}
|
||||
}
|
||||
@ -1424,11 +1612,12 @@ xdrawcursor(void) {
|
||||
/* basic drawing routines */
|
||||
void
|
||||
xdrawc(int x, int y, Glyph g) {
|
||||
int sl = slen(g.c);
|
||||
XRectangle r = { x * xw.cw, y * xw.ch, xw.cw, xw.ch };
|
||||
XSetBackground(xw.dis, dc.gc, dc.col[g.bg]);
|
||||
XSetForeground(xw.dis, dc.gc, dc.col[g.fg]);
|
||||
XSetFont(xw.dis, dc.gc, g.mode & ATTR_BOLD ? dc.bfont->fid : dc.font->fid);
|
||||
XDrawImageString(xw.dis, xw.buf, dc.gc, r.x, r.y+dc.font->ascent, &g.c, 1);
|
||||
XmbDrawImageString(xw.dis, xw.buf, g.mode&ATTR_BOLD?dc.bfont.fs:dc.font.fs,
|
||||
dc.gc, r.x, r.y+dc.font.ascent, g.c, sl);
|
||||
}
|
||||
|
||||
void
|
||||
@ -1450,7 +1639,7 @@ draw(int dummy) {
|
||||
/* optimized drawing routine */
|
||||
void
|
||||
draw(int redraw_all) {
|
||||
int i, x, y, ox;
|
||||
int ic, ib, x, y, ox, sl;
|
||||
Glyph base, new;
|
||||
char buf[DRAW_BUF_SIZ];
|
||||
|
||||
@ -1460,26 +1649,29 @@ draw(int redraw_all) {
|
||||
xclear(0, 0, term.col-1, term.row-1);
|
||||
for(y = 0; y < term.row; y++) {
|
||||
base = term.line[y][0];
|
||||
i = ox = 0;
|
||||
ic = ib = ox = 0;
|
||||
for(x = 0; x < term.col; x++) {
|
||||
new = term.line[y][x];
|
||||
if(sel.bx!=-1 && new.c && selected(x, y))
|
||||
if(sel.bx!=-1 && *(new.c) && selected(x, y))
|
||||
new.mode ^= ATTR_REVERSE;
|
||||
if(i > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
|
||||
i >= DRAW_BUF_SIZ)) {
|
||||
xdraws(buf, base, ox, y, i);
|
||||
i = 0;
|
||||
if(ib > 0 && (!(new.state & GLYPH_SET) || ATTRCMP(base, new) ||
|
||||
ib >= DRAW_BUF_SIZ-UTF_SIZ)) {
|
||||
xdraws(buf, base, ox, y, ic, ib);
|
||||
ic = ib = 0;
|
||||
}
|
||||
if(new.state & GLYPH_SET) {
|
||||
if(i == 0) {
|
||||
if(ib == 0) {
|
||||
ox = x;
|
||||
base = new;
|
||||
}
|
||||
buf[i++] = new.c;
|
||||
sl = slen(new.c);
|
||||
memcpy(buf+ib, new.c, sl);
|
||||
ib += sl;
|
||||
++ic;
|
||||
}
|
||||
}
|
||||
if(i > 0)
|
||||
xdraws(buf, base, ox, y, i);
|
||||
if(ib > 0)
|
||||
xdraws(buf, base, ox, y, ic, ib);
|
||||
}
|
||||
xdrawcursor();
|
||||
XCopyArea(xw.dis, xw.buf, xw.win, dc.gc, 0, 0, xw.bufw, xw.bufh, BORDER, BORDER);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user