X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=st.c;h=6c1638651fe372e829ec57dd47e3e4a0fbb9f920;hb=f7398434;hp=55a5c56eefc1feab52f7806bf1666564e19c1e45;hpb=980991fa6e7b737d54f8e5c60c26275890eb28ff;p=st.git diff --git a/st.c b/st.c index 55a5c56..6c16386 100644 --- a/st.c +++ b/st.c @@ -6,7 +6,6 @@ #include #include #include -#include #include #include #include @@ -18,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -63,26 +63,29 @@ char *argv0; #define XK_SWITCH_MOD (1<<13) /* macros */ -#define MIN(a, b) ((a) < (b) ? (a) : (b)) -#define MAX(a, b) ((a) < (b) ? (b) : (a)) -#define LEN(a) (sizeof(a) / sizeof(a)[0]) -#define DEFAULT(a, b) (a) = (a) ? (a) : (b) -#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b)) -#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177') -#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) -#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) -#define ISDELIM(u) (BETWEEN(u, 0, 127) && strchr(worddelimiters, u) != NULL) -#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) -#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg) -#define IS_SET(flag) ((term.mode & (flag)) != 0) -#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_nsec-t2.tv_nsec)/1E6) -#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit))) - -#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b)) -#define IS_TRUECOL(x) (1 << 24 & (x)) -#define TRUERED(x) (((x) & 0xff0000) >> 8) -#define TRUEGREEN(x) (((x) & 0xff00)) -#define TRUEBLUE(x) (((x) & 0xff) << 8) +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#define MAX(a, b) ((a) < (b) ? (b) : (a)) +#define LEN(a) (sizeof(a) / sizeof(a)[0]) +#define DEFAULT(a, b) (a) = (a) ? (a) : (b) +#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b)) +#define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d)) +#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177') +#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) +#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) +#define ISDELIM(u) (utf8strchr(worddelimiters, u) != NULL) +#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) +#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || \ + (a).bg != (b).bg) +#define IS_SET(flag) ((term.mode & (flag)) != 0) +#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + \ + (t1.tv_nsec-t2.tv_nsec)/1E6) +#define MODBIT(x, set, bit) ((set) ? ((x) |= (bit)) : ((x) &= ~(bit))) + +#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b)) +#define IS_TRUECOL(x) (1 << 24 & (x)) +#define TRUERED(x) (((x) & 0xff0000) >> 8) +#define TRUEGREEN(x) (((x) & 0xff00)) +#define TRUEBLUE(x) (((x) & 0xff) << 8) enum glyph_attribute { @@ -134,6 +137,8 @@ enum term_mode { MODE_MOUSEMANY = 1 << 18, MODE_BRCKTPASTE = 1 << 19, MODE_PRINT = 1 << 20, + MODE_UTF8 = 1 << 21, + MODE_SIXEL = 1 << 22, MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\ |MODE_MOUSEMANY, }; @@ -151,10 +156,12 @@ enum charset { enum escape_state { ESC_START = 1, ESC_CSI = 2, - ESC_STR = 4, /* DCS, OSC, PM, APC */ + ESC_STR = 4, /* OSC, PM, APC */ ESC_ALTCHARSET = 8, ESC_STR_END = 16, /* a final string was encountered */ ESC_TEST = 32, /* Enter in test mode */ + ESC_UTF8 = 64, + ESC_DCS =128, }; enum window_state { @@ -191,8 +198,8 @@ typedef XftColor Color; typedef struct { Rune u; /* character code */ ushort mode; /* attribute flags */ - ushort fg; /* foreground */ - ushort bg; /* background */ + uint32_t fg; /* foreground */ + uint32_t bg; /* background */ } Glyph; typedef Glyph *Line; @@ -231,7 +238,7 @@ typedef struct { int col; /* nb col */ Line *line; /* screen */ Line *alt; /* alternate screen */ - bool *dirty; /* dirtyness of lines */ + int *dirty; /* dirtyness of lines */ XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */ TCursor c; /* cursor */ int top; /* top scroll limit */ @@ -241,8 +248,8 @@ typedef struct { char trantbl[4]; /* charset table translation */ int charset; /* current charset */ int icharset; /* selected charset for sequence */ - bool numlock; /* lock numbers in keyboard */ - bool *tabs; + int numlock; /* lock numbers in keyboard */ + int *tabs; } Term; /* Purely graphic info */ @@ -258,7 +265,7 @@ typedef struct { Visual *vis; XSetWindowAttributes attrs; int scr; - bool isfixed; /* is fixed geometry? */ + int isfixed; /* is fixed geometry? */ int l, t; /* left and top offset */ int gm; /* geometry mask */ int tw, th; /* tty width and height */ @@ -273,7 +280,7 @@ typedef struct { uint b; uint mask; char *s; -} Mousekey; +} MouseShortcut; typedef struct { KeySym k; @@ -302,7 +309,7 @@ typedef struct { char *primary, *clipboard; Atom xtarget; - bool alt; + int alt; struct timespec tclick1; struct timespec tclick2; } Selection; @@ -332,6 +339,7 @@ static void xzoomreset(const Arg *); static void printsel(const Arg *); static void printscreen(const Arg *) ; static void toggleprinter(const Arg *); +static void sendbreak(const Arg *); /* Config.h for applying patches and the configuration. */ #include "config.h" @@ -403,16 +411,17 @@ 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 tsetmode(int, int, int *, int); static void tfulldirt(void); static void techo(Rune); static void tcontrolcode(uchar ); static void tdectest(char ); +static void tdefutf8(char); static int32_t tdefcolor(int *, int *, int); static void tdeftran(char); -static inline bool match(uint, uint); +static inline int match(uint, uint); static void ttynew(void); -static void ttyread(void); +static size_t ttyread(void); static void ttyresize(void); static void ttysend(char *, size_t); static void ttywrite(const char *, size_t); @@ -436,7 +445,6 @@ static void xresettitle(void); static void xsetpointermotion(int); static void xseturgency(int); static void xsetsel(char *, Time); -static void xtermclear(int, int, int, int); static void xunloadfont(Font *); static void xunloadfonts(void); static void xresize(int, int); @@ -453,13 +461,14 @@ static void focus(XEvent *); static void brelease(XEvent *); static void bpress(XEvent *); static void bmotion(XEvent *); +static void propnotify(XEvent *); static void selnotify(XEvent *); static void selclear(XEvent *); static void selrequest(XEvent *); static void selinit(void); static void selnormalize(void); -static inline bool selected(int, int); +static inline int selected(int, int); static char *getsel(void); static void selcopy(Time); static void selscroll(int, int); @@ -473,6 +482,7 @@ static size_t utf8decode(char *, Rune *, size_t); static Rune utf8decodebyte(char, size_t *); static size_t utf8encode(Rune, char *); static char utf8encodebyte(Rune, size_t); +static char *utf8strchr(char *s, Rune u); static size_t utf8validate(Rune *, size_t); static ssize_t xwrite(int, const char *, size_t); @@ -500,6 +510,11 @@ static void (*handler[LASTEvent])(XEvent *) = { */ /* [SelectionClear] = selclear, */ [SelectionNotify] = selnotify, +/* + * PropertyNotify is only turned on when there is some INCR transfer happening + * for the selection retrieval. + */ + [PropertyNotify] = propnotify, [SelectionRequest] = selrequest, }; @@ -512,15 +527,16 @@ static STREscape strescseq; static int cmdfd; static pid_t pid; static Selection sel; -static int iofd = STDOUT_FILENO; -static char **opt_cmd = NULL; -static char *opt_io = NULL; -static char *opt_title = NULL; -static char *opt_embed = NULL; +static int iofd = 1; +static char **opt_cmd = NULL; static char *opt_class = NULL; -static char *opt_font = NULL; -static char *opt_line = NULL; -static int oldbutton = 3; /* button event on startup: 3 = release */ +static char *opt_embed = NULL; +static char *opt_font = NULL; +static char *opt_io = NULL; +static char *opt_line = NULL; +static char *opt_name = NULL; +static char *opt_title = NULL; +static int oldbutton = 3; /* button event on startup: 3 = release */ static char *usedfont = NULL; static double usedfontsize = 0; @@ -550,120 +566,156 @@ static Fontcache frc[16]; static int frclen = 0; ssize_t -xwrite(int fd, const char *s, size_t len) { +xwrite(int fd, const char *s, size_t len) +{ size_t aux = len; + ssize_t r; - while(len > 0) { - ssize_t r = write(fd, s, len); - if(r < 0) + while (len > 0) { + r = write(fd, s, len); + if (r < 0) return r; len -= r; s += r; } + return aux; } void * -xmalloc(size_t len) { +xmalloc(size_t len) +{ void *p = malloc(len); - if(!p) + if (!p) die("Out of memory\n"); return p; } void * -xrealloc(void *p, size_t len) { - if((p = realloc(p, len)) == NULL) +xrealloc(void *p, size_t len) +{ + if ((p = realloc(p, len)) == NULL) die("Out of memory\n"); return p; } char * -xstrdup(char *s) { - if((s = strdup(s)) == NULL) +xstrdup(char *s) +{ + if ((s = strdup(s)) == NULL) die("Out of memory\n"); return s; } size_t -utf8decode(char *c, Rune *u, size_t clen) { +utf8decode(char *c, Rune *u, size_t clen) +{ size_t i, j, len, type; Rune udecoded; *u = UTF_INVALID; - if(!clen) + if (!clen) return 0; udecoded = utf8decodebyte(c[0], &len); - if(!BETWEEN(len, 1, UTF_SIZ)) + if (!BETWEEN(len, 1, UTF_SIZ)) return 1; - for(i = 1, j = 1; i < clen && j < len; ++i, ++j) { + for (i = 1, j = 1; i < clen && j < len; ++i, ++j) { udecoded = (udecoded << 6) | utf8decodebyte(c[i], &type); - if(type != 0) + if (type != 0) return j; } - if(j < len) + if (j < len) return 0; *u = udecoded; utf8validate(u, len); + return len; } Rune -utf8decodebyte(char c, size_t *i) { - for(*i = 0; *i < LEN(utfmask); ++(*i)) - if(((uchar)c & utfmask[*i]) == utfbyte[*i]) +utf8decodebyte(char c, size_t *i) +{ + for (*i = 0; *i < LEN(utfmask); ++(*i)) + if (((uchar)c & utfmask[*i]) == utfbyte[*i]) return (uchar)c & ~utfmask[*i]; + return 0; } size_t -utf8encode(Rune u, char *c) { +utf8encode(Rune u, char *c) +{ size_t len, i; len = utf8validate(&u, 0); - if(len > UTF_SIZ) + if (len > UTF_SIZ) return 0; - for(i = len - 1; i != 0; --i) { + + for (i = len - 1; i != 0; --i) { c[i] = utf8encodebyte(u, 0); u >>= 6; } c[0] = utf8encodebyte(u, len); + return len; } char -utf8encodebyte(Rune u, size_t i) { +utf8encodebyte(Rune u, size_t i) +{ return utfbyte[i] | (u & ~utfmask[i]); } +char * +utf8strchr(char *s, Rune u) +{ + Rune r; + size_t i, j, len; + + len = strlen(s); + for (i = 0, j = 0; i < len; i += j) { + if (!(j = utf8decode(&s[i], &r, len - i))) + break; + if (r == u) + return &(s[i]); + } + + return NULL; +} + size_t -utf8validate(Rune *u, size_t i) { - if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF)) +utf8validate(Rune *u, size_t i) +{ + if (!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF)) *u = UTF_INVALID; - for(i = 1; *u > utfmax[i]; ++i) + for (i = 1; *u > utfmax[i]; ++i) ; + return i; } void -selinit(void) { - memset(&sel.tclick1, 0, sizeof(sel.tclick1)); - memset(&sel.tclick2, 0, sizeof(sel.tclick2)); +selinit(void) +{ + clock_gettime(CLOCK_MONOTONIC, &sel.tclick1); + clock_gettime(CLOCK_MONOTONIC, &sel.tclick2); sel.mode = SEL_IDLE; + sel.snap = 0; sel.ob.x = -1; sel.primary = NULL; sel.clipboard = NULL; sel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0); - if(sel.xtarget == None) + if (sel.xtarget == None) sel.xtarget = XA_STRING; } int -x2col(int x) { +x2col(int x) +{ x -= borderpx; x /= xw.cw; @@ -671,7 +723,8 @@ x2col(int x) { } int -y2row(int y) { +y2row(int y) +{ y -= borderpx; y /= xw.ch; @@ -679,23 +732,25 @@ y2row(int y) { } int -tlinelen(int y) { +tlinelen(int y) +{ int i = term.col; - if(term.line[y][i - 1].mode & ATTR_WRAP) + if (term.line[y][i - 1].mode & ATTR_WRAP) return i; - while(i > 0 && term.line[y][i - 1].u == ' ') + while (i > 0 && term.line[y][i - 1].u == ' ') --i; return i; } void -selnormalize(void) { +selnormalize(void) +{ int i; - if(sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) { + if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) { sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x; sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x; } else { @@ -718,12 +773,13 @@ selnormalize(void) { sel.ne.x = term.col - 1; } -bool -selected(int x, int y) { - if(sel.mode == SEL_EMPTY) - return false; +int +selected(int x, int y) +{ + if (sel.mode == SEL_EMPTY) + return 0; - if(sel.type == SEL_RECTANGULAR) + if (sel.type == SEL_RECTANGULAR) return BETWEEN(y, sel.nb.y, sel.ne.y) && BETWEEN(x, sel.nb.x, sel.ne.x); @@ -733,12 +789,13 @@ selected(int x, int y) { } void -selsnap(int *x, int *y, int direction) { +selsnap(int *x, int *y, int direction) +{ int newx, newy, xt, yt; - bool delim, prevdelim; + int delim, prevdelim; Glyph *gp, *prevgp; - switch(sel.snap) { + switch (sel.snap) { case SNAP_WORD: /* * Snap around if the word wraps around at the end or @@ -746,20 +803,20 @@ selsnap(int *x, int *y, int direction) { */ prevgp = &term.line[*y][*x]; prevdelim = ISDELIM(prevgp->u); - for(;;) { + for (;;) { newx = *x + direction; newy = *y; - if(!BETWEEN(newx, 0, term.col - 1)) { + if (!BETWEEN(newx, 0, term.col - 1)) { newy += direction; newx = (newx + term.col) % term.col; if (!BETWEEN(newy, 0, term.row - 1)) break; - if(direction > 0) + if (direction > 0) yt = *y, xt = *x; else yt = newy, xt = newx; - if(!(term.line[yt][xt].mode & ATTR_WRAP)) + if (!(term.line[yt][xt].mode & ATTR_WRAP)) break; } @@ -768,7 +825,7 @@ selsnap(int *x, int *y, int direction) { gp = &term.line[newy][newx]; delim = ISDELIM(gp->u); - if(!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim + if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim || (delim && gp->u != prevgp->u))) break; @@ -785,16 +842,16 @@ selsnap(int *x, int *y, int direction) { * previous line will be selected. */ *x = (direction < 0) ? 0 : term.col - 1; - if(direction < 0) { - for(; *y > 0; *y += direction) { - if(!(term.line[*y-1][term.col-1].mode + if (direction < 0) { + for (; *y > 0; *y += direction) { + if (!(term.line[*y-1][term.col-1].mode & ATTR_WRAP)) { break; } } - } else if(direction > 0) { - for(; *y < term.row-1; *y += direction) { - if(!(term.line[*y][term.col-1].mode + } else if (direction > 0) { + for (; *y < term.row-1; *y += direction) { + if (!(term.line[*y][term.col-1].mode & ATTR_WRAP)) { break; } @@ -805,7 +862,8 @@ selsnap(int *x, int *y, int direction) { } void -getbuttoninfo(XEvent *e) { +getbuttoninfo(XEvent *e) +{ int type; uint state = e->xbutton.state & ~(Button1Mask | forceselmod); @@ -816,8 +874,8 @@ getbuttoninfo(XEvent *e) { selnormalize(); sel.type = SEL_REGULAR; - for(type = 1; type < LEN(selmasks); ++type) { - if(match(selmasks[type], state)) { + for (type = 1; type < LEN(selmasks); ++type) { + if (match(selmasks[type], state)) { sel.type = type; break; } @@ -825,7 +883,8 @@ getbuttoninfo(XEvent *e) { } void -mousereport(XEvent *e) { +mousereport(XEvent *e) +{ int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y), button = e->xbutton.button, state = e->xbutton.state, len; @@ -833,51 +892,51 @@ mousereport(XEvent *e) { static int ox, oy; /* from urxvt */ - if(e->xbutton.type == MotionNotify) { - if(x == ox && y == oy) + if (e->xbutton.type == MotionNotify) { + if (x == ox && y == oy) return; - if(!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY)) + if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY)) return; /* MOUSE_MOTION: no reporting if no button is pressed */ - if(IS_SET(MODE_MOUSEMOTION) && oldbutton == 3) + if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3) return; button = oldbutton + 32; ox = x; oy = y; } else { - if(!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) { + if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) { button = 3; } else { button -= Button1; - if(button >= 3) + if (button >= 3) button += 64 - 3; } - if(e->xbutton.type == ButtonPress) { + if (e->xbutton.type == ButtonPress) { oldbutton = button; ox = x; oy = y; - } else if(e->xbutton.type == ButtonRelease) { + } else if (e->xbutton.type == ButtonRelease) { oldbutton = 3; /* MODE_MOUSEX10: no button release reporting */ - if(IS_SET(MODE_MOUSEX10)) + if (IS_SET(MODE_MOUSEX10)) return; if (button == 64 || button == 65) return; } } - if(!IS_SET(MODE_MOUSEX10)) { + if (!IS_SET(MODE_MOUSEX10)) { button += ((state & ShiftMask ) ? 4 : 0) + ((state & Mod4Mask ) ? 8 : 0) + ((state & ControlMask) ? 16 : 0); } - if(IS_SET(MODE_MOUSESGR)) { + if (IS_SET(MODE_MOUSESGR)) { len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c", button, x+1, y+1, e->xbutton.type == ButtonRelease ? 'm' : 'M'); - } else if(x < 223 && y < 223) { + } else if (x < 223 && y < 223) { len = snprintf(buf, sizeof(buf), "\033[M%c%c%c", 32+button, 32+x+1, 32+y+1); } else { @@ -888,24 +947,25 @@ mousereport(XEvent *e) { } void -bpress(XEvent *e) { +bpress(XEvent *e) +{ struct timespec now; - Mousekey *mk; + MouseShortcut *ms; - if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { + if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { mousereport(e); return; } - for(mk = mshortcuts; mk < mshortcuts + LEN(mshortcuts); mk++) { - if(e->xbutton.button == mk->b - && match(mk->mask, e->xbutton.state)) { - ttysend(mk->s, strlen(mk->s)); + for (ms = mshortcuts; ms < mshortcuts + LEN(mshortcuts); ms++) { + if (e->xbutton.button == ms->b + && match(ms->mask, e->xbutton.state)) { + ttysend(ms->s, strlen(ms->s)); return; } } - if(e->xbutton.button == Button1) { + if (e->xbutton.button == Button1) { clock_gettime(CLOCK_MONOTONIC, &now); /* Clear previous selection, logically and visually. */ @@ -919,16 +979,16 @@ bpress(XEvent *e) { * If the user clicks below predefined timeouts specific * snapping behaviour is exposed. */ - if(TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) { + if (TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) { sel.snap = SNAP_LINE; - } else if(TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) { + } else if (TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) { sel.snap = SNAP_WORD; } else { sel.snap = 0; } selnormalize(); - if(sel.snap != 0) + if (sel.snap != 0) sel.mode = SEL_READY; tsetdirt(sel.nb.y, sel.ne.y); sel.tclick2 = sel.tclick1; @@ -937,22 +997,26 @@ bpress(XEvent *e) { } char * -getsel(void) { +getsel(void) +{ char *str, *ptr; int y, bufsize, lastx, linelen; Glyph *gp, *last; - if(sel.ob.x == -1) + if (sel.ob.x == -1) return NULL; bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ; ptr = str = xmalloc(bufsize); /* append every set & selected glyph to the selection */ - for(y = sel.nb.y; y <= sel.ne.y; y++) { - linelen = tlinelen(y); + for (y = sel.nb.y; y <= sel.ne.y; y++) { + if ((linelen = tlinelen(y)) == 0) { + *ptr++ = '\n'; + continue; + } - if(sel.type == SEL_RECTANGULAR) { + if (sel.type == SEL_RECTANGULAR) { gp = &term.line[y][sel.nb.x]; lastx = sel.ne.x; } else { @@ -960,11 +1024,11 @@ getsel(void) { lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; } last = &term.line[y][MIN(lastx, linelen-1)]; - while(last >= gp && last->u == ' ') + while (last >= gp && last->u == ' ') --last; - for( ; gp <= last; ++gp) { - if(gp->mode & ATTR_WDUMMY) + for ( ; gp <= last; ++gp) { + if (gp->mode & ATTR_WDUMMY) continue; ptr += utf8encode(gp->u, ptr); @@ -979,7 +1043,7 @@ getsel(void) { * st. * FIXME: Fix the computer world. */ - if((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP)) + if ((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP)) *ptr++ = '\n'; } *ptr = 0; @@ -987,24 +1051,48 @@ getsel(void) { } void -selcopy(Time t) { +selcopy(Time t) +{ xsetsel(getsel(), t); } void -selnotify(XEvent *e) { +propnotify(XEvent *e) +{ + XPropertyEvent *xpev; + Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); + + xpev = &e->xproperty; + if (xpev->state == PropertyNewValue && + (xpev->atom == XA_PRIMARY || + xpev->atom == clipboard)) { + selnotify(e); + } +} + +void +selnotify(XEvent *e) +{ ulong nitems, ofs, rem; int format; uchar *data, *last, *repl; - Atom type; - XSelectionEvent *xsev; + Atom type, incratom, property; + + incratom = XInternAtom(xw.dpy, "INCR", 0); ofs = 0; - xsev = &e->xselection; - if (xsev->property == None) - return; + if (e->type == SelectionNotify) { + property = e->xselection.property; + } else if(e->type == PropertyNotify) { + property = e->xproperty.atom; + } else { + return; + } + if (property == None) + return; + do { - if(XGetWindowProperty(xw.dpy, xw.win, xsev->property, ofs, + if (XGetWindowProperty(xw.dpy, xw.win, property, ofs, BUFSIZ/4, False, AnyPropertyType, &type, &format, &nitems, &rem, &data)) { @@ -1012,6 +1100,35 @@ selnotify(XEvent *e) { return; } + if (e->type == PropertyNotify && nitems == 0 && rem == 0) { + /* + * If there is some PropertyNotify with no data, then + * this is the signal of the selection owner that all + * data has been transferred. We won't need to receive + * PropertyNotify events anymore. + */ + MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask); + XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, + &xw.attrs); + } + + if (type == incratom) { + /* + * Activate the PropertyNotify events so we receive + * when the selection owner does send us the next + * chunk of data. + */ + MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask); + XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, + &xw.attrs); + + /* + * Deleting the property is the transfer start signal. + */ + XDeleteProperty(xw.dpy, xw.win, (int)property); + continue; + } + /* * As seen in getsel: * Line endings are inconsistent in the terminal and GUI world @@ -1021,35 +1138,43 @@ selnotify(XEvent *e) { */ repl = data; last = data + nitems * format / 8; - while((repl = memchr(repl, '\n', last - repl))) { + while ((repl = memchr(repl, '\n', last - repl))) { *repl++ = '\r'; } - if(IS_SET(MODE_BRCKTPASTE)) + if (IS_SET(MODE_BRCKTPASTE) && ofs == 0) ttywrite("\033[200~", 6); ttysend((char *)data, nitems * format / 8); - if(IS_SET(MODE_BRCKTPASTE)) + if (IS_SET(MODE_BRCKTPASTE) && rem == 0) ttywrite("\033[201~", 6); XFree(data); /* number of 32-bit chunks returned */ ofs += nitems * format / 32; - } while(rem > 0); + } while (rem > 0); + + /* + * Deleting the property again tells the selection owner to send the + * next data chunk in the property. + */ + XDeleteProperty(xw.dpy, xw.win, (int)property); } void -selpaste(const Arg *dummy) { +selpaste(const Arg *dummy) +{ XConvertSelection(xw.dpy, XA_PRIMARY, sel.xtarget, XA_PRIMARY, xw.win, CurrentTime); } void -clipcopy(const Arg *dummy) { +clipcopy(const Arg *dummy) +{ Atom clipboard; - if(sel.clipboard != NULL) + if (sel.clipboard != NULL) free(sel.clipboard); - if(sel.primary != NULL) { + if (sel.primary != NULL) { sel.clipboard = xstrdup(sel.primary); clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime); @@ -1057,7 +1182,8 @@ clipcopy(const Arg *dummy) { } void -clippaste(const Arg *dummy) { +clippaste(const Arg *dummy) +{ Atom clipboard; clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); @@ -1066,15 +1192,18 @@ clippaste(const Arg *dummy) { } void -selclear(XEvent *e) { - if(sel.ob.x == -1) +selclear(XEvent *e) +{ + if (sel.ob.x == -1) return; + sel.mode = SEL_IDLE; sel.ob.x = -1; tsetdirt(sel.nb.y, sel.ne.y); } void -selrequest(XEvent *e) { +selrequest(XEvent *e) +{ XSelectionRequestEvent *xsre; XSelectionEvent xev; Atom xa_targets, string, clipboard; @@ -1093,22 +1222,22 @@ selrequest(XEvent *e) { xev.property = None; xa_targets = XInternAtom(xw.dpy, "TARGETS", 0); - if(xsre->target == xa_targets) { + if (xsre->target == xa_targets) { /* respond with the supported type */ string = sel.xtarget; XChangeProperty(xsre->display, xsre->requestor, xsre->property, XA_ATOM, 32, PropModeReplace, (uchar *) &string, 1); xev.property = xsre->property; - } else if(xsre->target == sel.xtarget || xsre->target == XA_STRING) { + } else if (xsre->target == sel.xtarget || xsre->target == XA_STRING) { /* * xith XA_STRING non ascii characters may be incorrect in the * requestor. It is not our problem, use utf8. */ clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); - if(xsre->selection == XA_PRIMARY) { + if (xsre->selection == XA_PRIMARY) { seltext = sel.primary; - } else if(xsre->selection == clipboard) { + } else if (xsre->selection == clipboard) { seltext = sel.clipboard; } else { fprintf(stderr, @@ -1116,7 +1245,7 @@ selrequest(XEvent *e) { xsre->selection); return; } - if(seltext != NULL) { + if (seltext != NULL) { XChangeProperty(xsre->display, xsre->requestor, xsre->property, xsre->target, 8, PropModeReplace, @@ -1126,12 +1255,13 @@ selrequest(XEvent *e) { } /* all done, send a notification to the listener */ - if(!XSendEvent(xsre->display, xsre->requestor, True, 0, (XEvent *) &xev)) + if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *) &xev)) fprintf(stderr, "Error sending SelectionNotify event\n"); } void -xsetsel(char *str, Time t) { +xsetsel(char *str, Time t) +{ free(sel.primary); sel.primary = str; @@ -1141,16 +1271,17 @@ xsetsel(char *str, Time t) { } void -brelease(XEvent *e) { - if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { +brelease(XEvent *e) +{ + if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { mousereport(e); return; } - if(e->xbutton.button == Button2) { + if (e->xbutton.button == Button2) { selpaste(NULL); - } else if(e->xbutton.button == Button1) { - if(sel.mode == SEL_READY) { + } else if (e->xbutton.button == Button1) { + if (sel.mode == SEL_READY) { getbuttoninfo(e); selcopy(e->xbutton.time); } else @@ -1161,15 +1292,16 @@ brelease(XEvent *e) { } void -bmotion(XEvent *e) { +bmotion(XEvent *e) +{ int oldey, oldex, oldsby, oldsey; - if(IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { + if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { mousereport(e); return; } - if(!sel.mode) + if (!sel.mode) return; sel.mode = SEL_READY; @@ -1179,41 +1311,42 @@ bmotion(XEvent *e) { oldsey = sel.ne.y; getbuttoninfo(e); - if(oldey != sel.oe.y || oldex != sel.oe.x) + if (oldey != sel.oe.y || oldex != sel.oe.x) tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey)); } void -die(const char *errstr, ...) { +die(const char *errstr, ...) +{ va_list ap; va_start(ap, errstr); vfprintf(stderr, errstr, ap); va_end(ap); - exit(EXIT_FAILURE); + exit(1); } void -execsh(void) { +execsh(void) +{ char **args, *sh, *prog; const struct passwd *pw; char buf[sizeof(long) * 8 + 1]; errno = 0; - if((pw = getpwuid(getuid())) == NULL) { - if(errno) + if ((pw = getpwuid(getuid())) == NULL) { + if (errno) die("getpwuid:%s\n", strerror(errno)); else die("who are you?\n"); } - if (!(sh = getenv("SHELL"))) { + if ((sh = getenv("SHELL")) == NULL) sh = (pw->pw_shell[0]) ? pw->pw_shell : shell; - } - if(opt_cmd) + if (opt_cmd) prog = opt_cmd[0]; - else if(utmp) + else if (utmp) prog = utmp; else prog = sh; @@ -1239,24 +1372,24 @@ execsh(void) { signal(SIGALRM, SIG_DFL); execvp(prog, args); - _exit(EXIT_FAILURE); + _exit(1); } void -sigchld(int a) { - int stat, ret; +sigchld(int a) +{ + int stat; pid_t p; - if((p = waitpid(pid, &stat, WNOHANG)) < 0) + if ((p = waitpid(pid, &stat, WNOHANG)) < 0) die("Waiting for pid %hd failed: %s\n", pid, strerror(errno)); - if(pid != p) + if (pid != p) return; - ret = WIFEXITED(stat) ? WEXITSTATUS(stat) : EXIT_FAILURE; - if (ret != EXIT_SUCCESS) + if (!WIFEXITED(stat) || WEXITSTATUS(stat)) die("child finished with error '%d'\n", stat); - exit(EXIT_SUCCESS); + exit(0); } @@ -1266,18 +1399,18 @@ stty(void) char cmd[_POSIX_ARG_MAX], **p, *q, *s; size_t n, siz; - if((n = strlen(stty_args)) > sizeof(cmd)-1) + if ((n = strlen(stty_args)) > sizeof(cmd)-1) die("incorrect stty parameters\n"); memcpy(cmd, stty_args, n); q = cmd + n; siz = sizeof(cmd) - n; - for(p = opt_cmd; p && (s = *p); ++p) { - if((n = strlen(s)) > siz-1) + for (p = opt_cmd; p && (s = *p); ++p) { + if ((n = strlen(s)) > siz-1) die("stty parameter length too long\n"); *q++ = ' '; - q = memcpy(q, s, n); + memcpy(q, s, n); q += n; - siz-= n + 1; + siz -= n + 1; } *q = '\0'; if (system(cmd) != 0) @@ -1285,45 +1418,44 @@ stty(void) } void -ttynew(void) { +ttynew(void) +{ int m, s; struct winsize w = {term.row, term.col, 0, 0}; - if(opt_io) { + if (opt_io) { term.mode |= MODE_PRINT; iofd = (!strcmp(opt_io, "-")) ? - STDOUT_FILENO : - open(opt_io, O_WRONLY | O_CREAT, 0666); - if(iofd < 0) { + 1 : open(opt_io, O_WRONLY | O_CREAT, 0666); + if (iofd < 0) { fprintf(stderr, "Error opening %s:%s\n", opt_io, strerror(errno)); } } if (opt_line) { - if((cmdfd = open(opt_line, O_RDWR)) < 0) + if ((cmdfd = open(opt_line, O_RDWR)) < 0) die("open line failed: %s\n", strerror(errno)); - close(STDIN_FILENO); - dup(cmdfd); + dup2(cmdfd, 0); stty(); return; } /* seems to work fine on linux, openbsd and freebsd */ - if(openpty(&m, &s, NULL, NULL, &w) < 0) + if (openpty(&m, &s, NULL, NULL, &w) < 0) die("openpty failed: %s\n", strerror(errno)); - switch(pid = fork()) { + switch (pid = fork()) { case -1: die("fork failed\n"); break; case 0: close(iofd); setsid(); /* create a new process group */ - dup2(s, STDIN_FILENO); - dup2(s, STDOUT_FILENO); - dup2(s, STDERR_FILENO); - if(ioctl(s, TIOCSCTTY, NULL) < 0) + dup2(s, 0); + dup2(s, 1); + dup2(s, 2); + if (ioctl(s, TIOCSCTTY, NULL) < 0) die("ioctl TIOCSCTTY failed: %s\n", strerror(errno)); close(s); close(m); @@ -1337,8 +1469,9 @@ ttynew(void) { } } -void -ttyread(void) { +size_t +ttyread(void) +{ static char buf[BUFSIZ]; static int buflen = 0; char *ptr; @@ -1347,61 +1480,140 @@ ttyread(void) { int ret; /* append read bytes to unprocessed bytes */ - if((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0) + if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0) die("Couldn't read from shell: %s\n", strerror(errno)); - /* process every complete utf8 char */ buflen += ret; ptr = buf; - while((charsize = utf8decode(ptr, &unicodep, buflen))) { - tputc(unicodep); - ptr += charsize; - buflen -= charsize; - } + for (;;) { + if (IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) { + /* process a complete utf8 char */ + charsize = utf8decode(ptr, &unicodep, buflen); + if (charsize == 0) + break; + tputc(unicodep); + ptr += charsize; + buflen -= charsize; + + } else { + if (buflen <= 0) + break; + tputc(*ptr++ & 0xFF); + buflen--; + } + } /* keep any uncomplete utf8 char for the next call */ - memmove(buf, ptr, buflen); + if (buflen > 0) + memmove(buf, ptr, buflen); + + return ret; } void -ttywrite(const char *s, size_t n) { - if(xwrite(cmdfd, s, n) == -1) - die("write error on tty: %s\n", strerror(errno)); +ttywrite(const char *s, size_t n) +{ + fd_set wfd, rfd; + ssize_t r; + size_t lim = 256; + + /* + * Remember that we are using a pty, which might be a modem line. + * Writing too much will clog the line. That's why we are doing this + * dance. + * FIXME: Migrate the world to Plan 9. + */ + while (n > 0) { + FD_ZERO(&wfd); + FD_ZERO(&rfd); + FD_SET(cmdfd, &wfd); + FD_SET(cmdfd, &rfd); + + /* Check if we can write. */ + if (pselect(cmdfd+1, &rfd, &wfd, NULL, NULL, NULL) < 0) { + if (errno == EINTR) + continue; + die("select failed: %s\n", strerror(errno)); + } + if (FD_ISSET(cmdfd, &wfd)) { + /* + * Only write the bytes written by ttywrite() or the + * default of 256. This seems to be a reasonable value + * for a serial line. Bigger values might clog the I/O. + */ + if ((r = write(cmdfd, s, (n < lim)? n : lim)) < 0) + goto write_error; + if (r < n) { + /* + * We weren't able to write out everything. + * This means the buffer is getting full + * again. Empty it. + */ + if (n < lim) + lim = ttyread(); + n -= r; + s += r; + } else { + /* All bytes have been written. */ + break; + } + } + if (FD_ISSET(cmdfd, &rfd)) + lim = ttyread(); + } + return; + +write_error: + die("write error on tty: %s\n", strerror(errno)); } void -ttysend(char *s, size_t n) { +ttysend(char *s, size_t n) +{ int len; + char *t, *lim; Rune u; ttywrite(s, n); - if(IS_SET(MODE_ECHO)) - while((len = utf8decode(s, &u, n)) > 0) { - techo(u); - n -= len; - s += len; + if (!IS_SET(MODE_ECHO)) + return; + + lim = &s[n]; + for (t = s; t < lim; t += len) { + if (IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) { + len = utf8decode(t, &u, n); + } else { + u = *t & 0xFF; + len = 1; } + if (len <= 0) + break; + techo(u); + n -= len; + } } void -ttyresize(void) { +ttyresize(void) +{ struct winsize w; w.ws_row = term.row; w.ws_col = term.col; w.ws_xpixel = xw.tw; w.ws_ypixel = xw.th; - if(ioctl(cmdfd, TIOCSWINSZ, &w) < 0) + if (ioctl(cmdfd, TIOCSWINSZ, &w) < 0) fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno)); } int -tattrset(int attr) { +tattrset(int attr) +{ int i, j; - for(i = 0; i < term.row-1; i++) { - for(j = 0; j < term.col-1; j++) { - if(term.line[i][j].mode & attr) + for (i = 0; i < term.row-1; i++) { + for (j = 0; j < term.col-1; j++) { + if (term.line[i][j].mode & attr) return 1; } } @@ -1410,23 +1622,25 @@ tattrset(int attr) { } void -tsetdirt(int top, int bot) { +tsetdirt(int top, int bot) +{ int i; LIMIT(top, 0, term.row-1); LIMIT(bot, 0, term.row-1); - for(i = top; i <= bot; i++) + for (i = top; i <= bot; i++) term.dirty[i] = 1; } void -tsetdirtattr(int attr) { +tsetdirtattr(int attr) +{ int i, j; - for(i = 0; i < term.row-1; i++) { - for(j = 0; j < term.col-1; j++) { - if(term.line[i][j].mode & attr) { + for (i = 0; i < term.row-1; i++) { + for (j = 0; j < term.col-1; j++) { + if (term.line[i][j].mode & attr) { tsetdirt(i, i); break; } @@ -1435,25 +1649,28 @@ tsetdirtattr(int attr) { } void -tfulldirt(void) { +tfulldirt(void) +{ tsetdirt(0, term.row-1); } void -tcursor(int mode) { +tcursor(int mode) +{ static TCursor c[2]; - bool alt = IS_SET(MODE_ALTSCREEN); + int alt = IS_SET(MODE_ALTSCREEN); - if(mode == CURSOR_SAVE) { + if (mode == CURSOR_SAVE) { c[alt] = term.c; - } else if(mode == CURSOR_LOAD) { + } else if (mode == CURSOR_LOAD) { term.c = c[alt]; tmoveto(c[alt].x, c[alt].y); } } void -treset(void) { +treset(void) +{ uint i; term.c = (TCursor){{ @@ -1463,15 +1680,15 @@ treset(void) { }, .x = 0, .y = 0, .state = CURSOR_DEFAULT}; memset(term.tabs, 0, term.col * sizeof(*term.tabs)); - for(i = tabspaces; i < term.col; i += tabspaces) + for (i = tabspaces; i < term.col; i += tabspaces) term.tabs[i] = 1; term.top = 0; term.bot = term.row - 1; - term.mode = MODE_WRAP; + term.mode = MODE_WRAP|MODE_UTF8; memset(term.trantbl, CS_USA, sizeof(term.trantbl)); term.charset = 0; - for(i = 0; i < 2; i++) { + for (i = 0; i < 2; i++) { tmoveto(0, 0); tcursor(CURSOR_SAVE); tclearregion(0, 0, term.col-1, term.row-1); @@ -1480,7 +1697,8 @@ treset(void) { } void -tnew(int col, int row) { +tnew(int col, int row) +{ term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } }; tresize(col, row); term.numlock = 1; @@ -1489,7 +1707,8 @@ tnew(int col, int row) { } void -tswapscreen(void) { +tswapscreen(void) +{ Line *tmp = term.line; term.line = term.alt; @@ -1499,7 +1718,8 @@ tswapscreen(void) { } void -tscrolldown(int orig, int n) { +tscrolldown(int orig, int n) +{ int i; Line temp; @@ -1508,7 +1728,7 @@ tscrolldown(int orig, int n) { tsetdirt(orig, term.bot-n); tclearregion(0, term.bot-n+1, term.col-1, term.bot); - for(i = term.bot; i >= orig+n; i--) { + for (i = term.bot; i >= orig+n; i--) { temp = term.line[i]; term.line[i] = term.line[i-n]; term.line[i-n] = temp; @@ -1518,7 +1738,8 @@ tscrolldown(int orig, int n) { } void -tscrollup(int orig, int n) { +tscrollup(int orig, int n) +{ int i; Line temp; @@ -1527,7 +1748,7 @@ tscrollup(int orig, int n) { tclearregion(0, orig, term.col-1, orig+n-1); tsetdirt(orig+n, term.bot); - for(i = orig; i <= term.bot-n; i++) { + for (i = orig; i <= term.bot-n; i++) { temp = term.line[i]; term.line[i] = term.line[i+n]; term.line[i+n] = temp; @@ -1537,26 +1758,27 @@ tscrollup(int orig, int n) { } void -selscroll(int orig, int n) { - if(sel.ob.x == -1) +selscroll(int orig, int n) +{ + if (sel.ob.x == -1) return; - if(BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) { - if((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) { + if (BETWEEN(sel.ob.y, orig, term.bot) || BETWEEN(sel.oe.y, orig, term.bot)) { + if ((sel.ob.y += n) > term.bot || (sel.oe.y += n) < term.top) { selclear(NULL); return; } - if(sel.type == SEL_RECTANGULAR) { - if(sel.ob.y < term.top) + if (sel.type == SEL_RECTANGULAR) { + if (sel.ob.y < term.top) sel.ob.y = term.top; - if(sel.oe.y > term.bot) + if (sel.oe.y > term.bot) sel.oe.y = term.bot; } else { - if(sel.ob.y < term.top) { + if (sel.ob.y < term.top) { sel.ob.y = term.top; sel.ob.x = 0; } - if(sel.oe.y > term.bot) { + if (sel.oe.y > term.bot) { sel.oe.y = term.bot; sel.oe.x = term.col; } @@ -1566,10 +1788,11 @@ selscroll(int orig, int n) { } void -tnewline(int first_col) { +tnewline(int first_col) +{ int y = term.c.y; - if(y == term.bot) { + if (y == term.bot) { tscrollup(term.top, 1); } else { y++; @@ -1578,27 +1801,28 @@ tnewline(int first_col) { } void -csiparse(void) { +csiparse(void) +{ char *p = csiescseq.buf, *np; long int v; csiescseq.narg = 0; - if(*p == '?') { + if (*p == '?') { csiescseq.priv = 1; p++; } csiescseq.buf[csiescseq.len] = '\0'; - while(p < csiescseq.buf+csiescseq.len) { + while (p < csiescseq.buf+csiescseq.len) { np = NULL; v = strtol(p, &np, 10); - if(np == p) + if (np == p) v = 0; - if(v == LONG_MAX || v == LONG_MIN) + if (v == LONG_MAX || v == LONG_MIN) v = -1; csiescseq.arg[csiescseq.narg++] = v; p = np; - if(*p != ';' || csiescseq.narg == ESC_ARG_SIZ) + if (*p != ';' || csiescseq.narg == ESC_ARG_SIZ) break; p++; } @@ -1608,15 +1832,17 @@ csiparse(void) { /* for absolute user moves, when decom is set */ void -tmoveato(int x, int y) { +tmoveato(int x, int y) +{ tmoveto(x, y + ((term.c.state & CURSOR_ORIGIN) ? term.top: 0)); } void -tmoveto(int x, int y) { +tmoveto(int x, int y) +{ int miny, maxy; - if(term.c.state & CURSOR_ORIGIN) { + if (term.c.state & CURSOR_ORIGIN) { miny = term.top; maxy = term.bot; } else { @@ -1629,7 +1855,8 @@ tmoveto(int x, int y) { } void -tsetchar(Rune u, Glyph *attr, int x, int y) { +tsetchar(Rune 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 */ @@ -1644,16 +1871,16 @@ tsetchar(Rune u, Glyph *attr, int x, int y) { /* * The table is proudly stolen from rxvt. */ - if(term.trantbl[term.charset] == CS_GRAPHIC0 && + 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) { + if (term.line[y][x].mode & ATTR_WIDE) { + if (x+1 < term.col) { term.line[y][x+1].u = ' '; term.line[y][x+1].mode &= ~ATTR_WDUMMY; } - } else if(term.line[y][x].mode & ATTR_WDUMMY) { + } else if (term.line[y][x].mode & ATTR_WDUMMY) { term.line[y][x-1].u = ' '; term.line[y][x-1].mode &= ~ATTR_WIDE; } @@ -1664,13 +1891,14 @@ tsetchar(Rune u, Glyph *attr, int x, int y) { } void -tclearregion(int x1, int y1, int x2, int y2) { +tclearregion(int x1, int y1, int x2, int y2) +{ int x, y, temp; Glyph *gp; - if(x1 > x2) + if (x1 > x2) temp = x1, x1 = x2, x2 = temp; - if(y1 > y2) + if (y1 > y2) temp = y1, y1 = y2, y2 = temp; LIMIT(x1, 0, term.col-1); @@ -1678,11 +1906,11 @@ tclearregion(int x1, int y1, int x2, int y2) { LIMIT(y1, 0, term.row-1); LIMIT(y2, 0, term.row-1); - for(y = y1; y <= y2; y++) { + for (y = y1; y <= y2; y++) { term.dirty[y] = 1; - for(x = x1; x <= x2; x++) { + for (x = x1; x <= x2; x++) { gp = &term.line[y][x]; - if(selected(x, y)) + if (selected(x, y)) selclear(NULL); gp->fg = term.c.attr.fg; gp->bg = term.c.attr.bg; @@ -1693,7 +1921,8 @@ tclearregion(int x1, int y1, int x2, int y2) { } void -tdeletechar(int n) { +tdeletechar(int n) +{ int dst, src, size; Glyph *line; @@ -1709,7 +1938,8 @@ tdeletechar(int n) { } void -tinsertblank(int n) { +tinsertblank(int n) +{ int dst, src, size; Glyph *line; @@ -1725,19 +1955,22 @@ tinsertblank(int n) { } void -tinsertblankline(int n) { - if(BETWEEN(term.c.y, term.top, term.bot)) +tinsertblankline(int n) +{ + if (BETWEEN(term.c.y, term.top, term.bot)) tscrolldown(term.c.y, n); } void -tdeleteline(int n) { - if(BETWEEN(term.c.y, term.top, term.bot)) +tdeleteline(int n) +{ + if (BETWEEN(term.c.y, term.top, term.bot)) tscrollup(term.c.y, n); } int32_t -tdefcolor(int *attr, int *npar, int l) { +tdefcolor(int *attr, int *npar, int l) +{ int32_t idx = -1; uint r, g, b; @@ -1753,7 +1986,7 @@ tdefcolor(int *attr, int *npar, int l) { g = attr[*npar + 3]; b = attr[*npar + 4]; *npar += 4; - if(!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255)) + if (!BETWEEN(r, 0, 255) || !BETWEEN(g, 0, 255) || !BETWEEN(b, 0, 255)) fprintf(stderr, "erresc: bad rgb color (%u,%u,%u)\n", r, g, b); else @@ -1767,7 +2000,7 @@ tdefcolor(int *attr, int *npar, int l) { break; } *npar += 2; - if(!BETWEEN(attr[*npar], 0, 255)) + if (!BETWEEN(attr[*npar], 0, 255)) fprintf(stderr, "erresc: bad fgcolor %d\n", attr[*npar]); else idx = attr[*npar]; @@ -1786,12 +2019,13 @@ tdefcolor(int *attr, int *npar, int l) { } void -tsetattr(int *attr, int l) { +tsetattr(int *attr, int l) +{ int i; int32_t idx; - for(i = 0; i < l; i++) { - switch(attr[i]) { + for (i = 0; i < l; i++) { + switch (attr[i]) { case 0: term.c.attr.mode &= ~( ATTR_BOLD | @@ -1867,13 +2101,13 @@ tsetattr(int *attr, int l) { term.c.attr.bg = defaultbg; break; default: - if(BETWEEN(attr[i], 30, 37)) { + if (BETWEEN(attr[i], 30, 37)) { term.c.attr.fg = attr[i] - 30; - } else if(BETWEEN(attr[i], 40, 47)) { + } else if (BETWEEN(attr[i], 40, 47)) { term.c.attr.bg = attr[i] - 40; - } else if(BETWEEN(attr[i], 90, 97)) { + } else if (BETWEEN(attr[i], 90, 97)) { term.c.attr.fg = attr[i] - 90 + 8; - } else if(BETWEEN(attr[i], 100, 107)) { + } else if (BETWEEN(attr[i], 100, 107)) { term.c.attr.bg = attr[i] - 100 + 8; } else { fprintf(stderr, @@ -1886,12 +2120,13 @@ tsetattr(int *attr, int l) { } void -tsetscroll(int t, int b) { +tsetscroll(int t, int b) +{ int temp; LIMIT(t, 0, term.row-1); LIMIT(b, 0, term.row-1); - if(t > b) { + if (t > b) { temp = t; t = b; b = temp; @@ -1901,20 +2136,21 @@ tsetscroll(int t, int b) { } void -tsetmode(bool priv, bool set, int *args, int narg) { +tsetmode(int priv, int set, int *args, int narg) +{ int *lim, mode; - bool alt; + int alt; - for(lim = args + narg; args < lim; ++args) { - if(priv) { - switch(*args) { + for (lim = args + narg; args < lim; ++args) { + if (priv) { + switch (*args) { case 1: /* DECCKM -- Cursor key */ MODBIT(term.mode, set, MODE_APPCURSOR); break; case 5: /* DECSCNM -- Reverse video */ mode = term.mode; MODBIT(term.mode, set, MODE_REVERSE); - if(mode != term.mode) + if (mode != term.mode) redraw(); break; case 6: /* DECOM -- Origin */ @@ -1976,13 +2212,13 @@ tsetmode(bool priv, bool set, int *args, int narg) { if (!allowaltscreen) break; alt = IS_SET(MODE_ALTSCREEN); - if(alt) { + if (alt) { tclearregion(0, 0, term.col-1, term.row-1); } - if(set ^ alt) /* set is always 1 or 0 */ + if (set ^ alt) /* set is always 1 or 0 */ tswapscreen(); - if(*args != 1049) + if (*args != 1049) break; /* FALLTHROUGH */ case 1048: @@ -2007,7 +2243,7 @@ tsetmode(bool priv, bool set, int *args, int narg) { break; } } else { - switch(*args) { + switch (*args) { case 0: /* Error (IGNORED) */ break; case 2: /* KAM -- keyboard action */ @@ -2033,11 +2269,12 @@ tsetmode(bool priv, bool set, int *args, int narg) { } void -csihandle(void) { +csihandle(void) +{ char buf[40]; int len; - switch(csiescseq.mode[0]) { + switch (csiescseq.mode[0]) { default: unknown: fprintf(stderr, "erresc: unknown csi "); @@ -2058,7 +2295,7 @@ csihandle(void) { tmoveto(term.c.x, term.c.y+csiescseq.arg[0]); break; case 'i': /* MC -- Media Copy */ - switch(csiescseq.arg[0]) { + switch (csiescseq.arg[0]) { case 0: tdump(); break; @@ -2077,7 +2314,7 @@ csihandle(void) { } break; case 'c': /* DA -- Device Attributes */ - if(csiescseq.arg[0] == 0) + if (csiescseq.arg[0] == 0) ttywrite(vtiden, sizeof(vtiden) - 1); break; case 'C': /* CUF -- Cursor Forward */ @@ -2098,7 +2335,7 @@ csihandle(void) { tmoveto(0, term.c.y-csiescseq.arg[0]); break; case 'g': /* TBC -- Tabulation clear */ - switch(csiescseq.arg[0]) { + switch (csiescseq.arg[0]) { case 0: /* clear current tab stop */ term.tabs[term.c.x] = 0; break; @@ -2126,16 +2363,16 @@ csihandle(void) { break; case 'J': /* ED -- Clear screen */ selclear(NULL); - switch(csiescseq.arg[0]) { + switch (csiescseq.arg[0]) { case 0: /* below */ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); - if(term.c.y < term.row-1) { + if (term.c.y < term.row-1) { tclearregion(0, term.c.y+1, term.col-1, term.row-1); } break; case 1: /* above */ - if(term.c.y > 1) + if (term.c.y > 1) tclearregion(0, 0, term.col-1, term.c.y-1); tclearregion(0, term.c.y, term.c.x, term.c.y); break; @@ -2147,7 +2384,7 @@ csihandle(void) { } break; case 'K': /* EL -- Clear line */ - switch(csiescseq.arg[0]) { + switch (csiescseq.arg[0]) { case 0: /* right */ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); @@ -2210,7 +2447,7 @@ csihandle(void) { } break; case 'r': /* DECSTBM -- Set Scrolling Region */ - if(csiescseq.priv) { + if (csiescseq.priv) { goto unknown; } else { DEFAULT(csiescseq.arg[0], 1); @@ -2227,35 +2464,36 @@ csihandle(void) { break; case ' ': switch (csiescseq.mode[1]) { - case 'q': /* DECSCUSR -- Set Cursor Style */ - DEFAULT(csiescseq.arg[0], 1); - if (!BETWEEN(csiescseq.arg[0], 0, 6)) { - goto unknown; - } - xw.cursor = csiescseq.arg[0]; - break; - default: + case 'q': /* DECSCUSR -- Set Cursor Style */ + DEFAULT(csiescseq.arg[0], 1); + if (!BETWEEN(csiescseq.arg[0], 0, 6)) { goto unknown; + } + xw.cursor = csiescseq.arg[0]; + break; + default: + goto unknown; } break; } } void -csidump(void) { +csidump(void) +{ int i; uint c; printf("ESC["); - for(i = 0; i < csiescseq.len; i++) { + for (i = 0; i < csiescseq.len; i++) { c = csiescseq.buf[i] & 0xff; - if(isprint(c)) { + if (isprint(c)) { putchar(c); - } else if(c == '\n') { + } else if (c == '\n') { printf("(\\n)"); - } else if(c == '\r') { + } else if (c == '\r') { printf("(\\r)"); - } else if(c == 0x1b) { + } else if (c == 0x1b) { printf("(\\e)"); } else { printf("(%02x)", c); @@ -2265,12 +2503,14 @@ csidump(void) { } void -csireset(void) { +csireset(void) +{ memset(&csiescseq, 0, sizeof(csiescseq)); } void -strhandle(void) { +strhandle(void) +{ char *p = NULL; int j, narg, par; @@ -2278,23 +2518,23 @@ strhandle(void) { strparse(); par = (narg = strescseq.narg) ? atoi(strescseq.args[0]) : 0; - switch(strescseq.type) { + switch (strescseq.type) { case ']': /* OSC -- Operating System Command */ - switch(par) { + switch (par) { case 0: case 1: case 2: - if(narg > 1) + if (narg > 1) xsettitle(strescseq.args[1]); return; case 4: /* color set */ - if(narg < 3) + if (narg < 3) break; p = strescseq.args[2]; /* FALLTHROUGH */ case 104: /* color reset, here p = NULL */ j = (narg > 1) ? atoi(strescseq.args[1]) : -1; - if(xsetcolorname(j, p)) { + if (xsetcolorname(j, p)) { fprintf(stderr, "erresc: invalid color %s\n", p); } else { /* @@ -2310,6 +2550,7 @@ strhandle(void) { xsettitle(strescseq.args[0]); return; case 'P': /* DCS -- Device Control String */ + term.mode |= ESC_DCS; case '_': /* APC -- Application Program Command */ case '^': /* PM -- Privacy Message */ return; @@ -2320,43 +2561,45 @@ strhandle(void) { } void -strparse(void) { +strparse(void) +{ int c; char *p = strescseq.buf; strescseq.narg = 0; strescseq.buf[strescseq.len] = '\0'; - if(*p == '\0') + if (*p == '\0') return; - while(strescseq.narg < STR_ARG_SIZ) { + while (strescseq.narg < STR_ARG_SIZ) { strescseq.args[strescseq.narg++] = p; - while((c = *p) != ';' && c != '\0') + while ((c = *p) != ';' && c != '\0') ++p; - if(c == '\0') + if (c == '\0') return; *p++ = '\0'; } } void -strdump(void) { +strdump(void) +{ int i; uint c; printf("ESC%c", strescseq.type); - for(i = 0; i < strescseq.len; i++) { + for (i = 0; i < strescseq.len; i++) { c = strescseq.buf[i] & 0xff; - if(c == '\0') { + if (c == '\0') { return; - } else if(isprint(c)) { + } else if (isprint(c)) { putchar(c); - } else if(c == '\n') { + } else if (c == '\n') { printf("(\\n)"); - } else if(c == '\r') { + } else if (c == '\r') { printf("(\\r)"); - } else if(c == 0x1b) { + } else if (c == 0x1b) { printf("(\\e)"); } else { printf("(%02x)", c); @@ -2366,13 +2609,22 @@ strdump(void) { } void -strreset(void) { +strreset(void) +{ memset(&strescseq, 0, sizeof(strescseq)); } void -tprinter(char *s, size_t len) { - if(iofd != -1 && xwrite(iofd, s, len) < 0) { +sendbreak(const Arg *arg) +{ + if (tcsendbreak(cmdfd, 0)) + perror("Error sending break"); +} + +void +tprinter(char *s, size_t len) +{ + if (iofd != -1 && xwrite(iofd, s, len) < 0) { fprintf(stderr, "Error writing in %s:%s\n", opt_io, strerror(errno)); close(iofd); @@ -2381,76 +2633,84 @@ tprinter(char *s, size_t len) { } void -toggleprinter(const Arg *arg) { +toggleprinter(const Arg *arg) +{ term.mode ^= MODE_PRINT; } void -printscreen(const Arg *arg) { +printscreen(const Arg *arg) +{ tdump(); } void -printsel(const Arg *arg) { +printsel(const Arg *arg) +{ tdumpsel(); } void -tdumpsel(void) { +tdumpsel(void) +{ char *ptr; - if((ptr = getsel())) { + if ((ptr = getsel())) { tprinter(ptr, strlen(ptr)); free(ptr); } } void -tdumpline(int n) { +tdumpline(int n) +{ char buf[UTF_SIZ]; Glyph *bp, *end; bp = &term.line[n][0]; end = &bp[MIN(tlinelen(n), term.col) - 1]; - if(bp != end || bp->u != ' ') { - for( ;bp <= end; ++bp) + if (bp != end || bp->u != ' ') { + for ( ;bp <= end; ++bp) tprinter(buf, utf8encode(bp->u, buf)); } tprinter("\n", 1); } void -tdump(void) { +tdump(void) +{ int i; - for(i = 0; i < term.row; ++i) + for (i = 0; i < term.row; ++i) tdumpline(i); } void -tputtab(int n) { +tputtab(int n) +{ uint x = term.c.x; - if(n > 0) { - while(x < term.col && n--) - for(++x; x < term.col && !term.tabs[x]; ++x) + if (n > 0) { + while (x < term.col && n--) + for (++x; x < term.col && !term.tabs[x]; ++x) /* nothing */ ; - } else if(n < 0) { - while(x > 0 && n++) - for(--x; x > 0 && !term.tabs[x]; --x) + } else if (n < 0) { + while (x > 0 && n++) + for (--x; x > 0 && !term.tabs[x]; --x) /* nothing */ ; } term.c.x = LIMIT(x, 0, term.col-1); } void -techo(Rune u) { - if(ISCONTROL(u)) { /* control code */ - if(u & 0x80) { +techo(Rune u) +{ + if (ISCONTROL(u)) { /* control code */ + if (u & 0x80) { u &= 0x7f; tputc('^'); tputc('['); - } else if(u != '\n' && u != '\r' && u != '\t') { + } else if (u != '\n' && u != '\r' && u != '\t') { u ^= 0x40; tputc('^'); } @@ -2459,12 +2719,22 @@ techo(Rune u) { } void -tdeftran(char ascii) { +tdefutf8(char ascii) +{ + if (ascii == 'G') + term.mode |= MODE_UTF8; + else if (ascii == '@') + term.mode &= ~MODE_UTF8; +} + +void +tdeftran(char ascii) +{ static char cs[] = "0B"; static int vcs[] = {CS_GRAPHIC0, CS_USA}; char *p; - if((p = strchr(cs, ascii)) == NULL) { + if ((p = strchr(cs, ascii)) == NULL) { fprintf(stderr, "esc unhandled charset: ESC ( %c\n", ascii); } else { term.trantbl[term.icharset] = vcs[p - cs]; @@ -2472,22 +2742,27 @@ tdeftran(char ascii) { } void -tdectest(char c) { +tdectest(char c) +{ int x, y; - if(c == '8') { /* DEC screen alignment test. */ - for(x = 0; x < term.col; ++x) { - for(y = 0; y < term.row; ++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); } } } void -tstrsequence(uchar c) { +tstrsequence(uchar c) +{ + strreset(); + switch (c) { case 0x90: /* DCS -- Device Control String */ c = 'P'; + term.esc |= ESC_DCS; break; case 0x9f: /* APC -- Application Program Command */ c = '_'; @@ -2499,14 +2774,14 @@ tstrsequence(uchar c) { c = ']'; break; } - strreset(); strescseq.type = c; term.esc |= ESC_STR; } void -tcontrolcode(uchar ascii) { - switch(ascii) { +tcontrolcode(uchar ascii) +{ + switch (ascii) { case '\t': /* HT */ tputtab(1); return; @@ -2523,11 +2798,11 @@ tcontrolcode(uchar ascii) { tnewline(IS_SET(MODE_CRLF)); return; case '\a': /* BEL */ - if(term.esc & ESC_STR_END) { + if (term.esc & ESC_STR_END) { /* backwards compatibility to xterm */ strhandle(); } else { - if(!(xw.state & WIN_FOCUSED)) + if (!(xw.state & WIN_FOCUSED)) xseturgency(1); if (bellvolume) XkbBell(xw.dpy, xw.win, bellvolume, (Atom)NULL); @@ -2553,18 +2828,37 @@ tcontrolcode(uchar ascii) { case '\023': /* XOFF (IGNORED) */ case 0177: /* DEL (IGNORED) */ return; + case 0x80: /* TODO: PAD */ + case 0x81: /* TODO: HOP */ + case 0x82: /* TODO: BPH */ + case 0x83: /* TODO: NBH */ case 0x84: /* TODO: IND */ break; case 0x85: /* NEL -- Next line */ tnewline(1); /* always go to first col */ break; + case 0x86: /* TODO: SSA */ + case 0x87: /* TODO: ESA */ + break; case 0x88: /* HTS -- Horizontal tab stop */ term.tabs[term.c.x] = 1; break; + case 0x89: /* TODO: HTJ */ + case 0x8a: /* TODO: VTS */ + case 0x8b: /* TODO: PLD */ + case 0x8c: /* TODO: PLU */ case 0x8d: /* TODO: RI */ case 0x8e: /* TODO: SS2 */ case 0x8f: /* TODO: SS3 */ + case 0x91: /* TODO: PU1 */ + case 0x92: /* TODO: PU2 */ + case 0x93: /* TODO: STS */ + case 0x94: /* TODO: CCH */ + case 0x95: /* TODO: MW */ + case 0x96: /* TODO: SPA */ + case 0x97: /* TODO: EPA */ case 0x98: /* TODO: SOS */ + case 0x99: /* TODO: SGCI */ break; case 0x9a: /* DECID -- Identify Terminal */ ttywrite(vtiden, sizeof(vtiden) - 1); @@ -2573,9 +2867,9 @@ tcontrolcode(uchar ascii) { case 0x9c: /* TODO: ST */ break; case 0x90: /* DCS -- Device Control String */ - case 0x9f: /* APC -- Application Program Command */ - case 0x9e: /* PM -- Privacy Message */ case 0x9d: /* OSC -- Operating System Command */ + case 0x9e: /* PM -- Privacy Message */ + case 0x9f: /* APC -- Application Program Command */ tstrsequence(ascii); return; } @@ -2588,14 +2882,18 @@ tcontrolcode(uchar ascii) { * more characters for this sequence, otherwise 0 */ int -eschandle(uchar ascii) { - switch(ascii) { +eschandle(uchar ascii) +{ + switch (ascii) { case '[': term.esc |= ESC_CSI; return 0; case '#': term.esc |= ESC_TEST; return 0; + case '%': + term.esc |= ESC_UTF8; + return 0; case 'P': /* DCS -- Device Control String */ case '_': /* APC -- Application Program Command */ case '^': /* PM -- Privacy Message */ @@ -2615,7 +2913,7 @@ eschandle(uchar ascii) { term.esc |= ESC_ALTCHARSET; return 0; case 'D': /* IND -- Linefeed */ - if(term.c.y == term.bot) { + if (term.c.y == term.bot) { tscrollup(term.top, 1); } else { tmoveto(term.c.x, term.c.y+1); @@ -2628,7 +2926,7 @@ eschandle(uchar ascii) { term.tabs[term.c.x] = 1; break; case 'M': /* RI -- Reverse index */ - if(term.c.y == term.top) { + if (term.c.y == term.top) { tscrolldown(term.top, 1); } else { tmoveto(term.c.x, term.c.y-1); @@ -2655,7 +2953,7 @@ eschandle(uchar ascii) { tcursor(CURSOR_LOAD); break; case '\\': /* ST -- String Terminator */ - if(term.esc & ESC_STR_END) + if (term.esc & ESC_STR_END) strhandle(); break; default: @@ -2667,21 +2965,27 @@ eschandle(uchar ascii) { } void -tputc(Rune u) { +tputc(Rune u) +{ char c[UTF_SIZ]; - bool control; + int control; int width, len; Glyph *gp; - len = utf8encode(u, c); - if((width = wcwidth(u)) == -1) { - memcpy(c, "\357\277\275", 4); /* UTF_INVALID */ - width = 1; + control = ISCONTROL(u); + if (!IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) { + c[0] = u; + width = len = 1; + } else { + len = utf8encode(u, c); + if (!control && (width = wcwidth(u)) == -1) { + memcpy(c, "\357\277\275", 4); /* UTF_INVALID */ + width = 1; + } } - if(IS_SET(MODE_PRINT)) + if (IS_SET(MODE_PRINT)) tprinter(c, len); - control = ISCONTROL(u); /* * STR sequence must be checked before anything else @@ -2689,48 +2993,65 @@ tputc(Rune u) { * receives a ESC, a SUB, a ST or any other C1 control * character. */ - if(term.esc & ESC_STR) { - if(u == '\a' || u == 030 || u == 032 || u == 033 || + if (term.esc & ESC_STR) { + if (u == '\a' || u == 030 || u == 032 || u == 033 || ISCONTROLC1(u)) { - term.esc &= ~(ESC_START|ESC_STR); + term.esc &= ~(ESC_START|ESC_STR|ESC_DCS); + if (IS_SET(MODE_SIXEL)) { + /* TODO: render sixel */; + term.mode &= ~MODE_SIXEL; + return; + } term.esc |= ESC_STR_END; - } else if(strescseq.len + len < sizeof(strescseq.buf) - 1) { - memmove(&strescseq.buf[strescseq.len], c, len); - strescseq.len += len; + goto check_control_code; + } + + + if (IS_SET(MODE_SIXEL)) { + /* TODO: implement sixel mode */ return; - } else { - /* - * Here is a bug in terminals. If the user never sends - * some code to stop the str or esc command, then st - * will stop responding. But this is better than - * silently failing with unknown characters. At least - * then users will report back. - * - * In the case users ever get fixed, here is the code: - */ - /* - * term.esc = 0; - * strhandle(); - */ + } + if (term.esc&ESC_DCS && strescseq.len == 0 && u == 'q') + term.mode |= MODE_SIXEL; + + if (strescseq.len+len >= sizeof(strescseq.buf)-1) { + /* + * Here is a bug in terminals. If the user never sends + * some code to stop the str or esc command, then st + * will stop responding. But this is better than + * silently failing with unknown characters. At least + * then users will report back. + * + * In the case users ever get fixed, here is the code: + */ + /* + * term.esc = 0; + * strhandle(); + */ return; } + + memmove(&strescseq.buf[strescseq.len], c, len); + strescseq.len += len; + return; } +check_control_code: /* * Actions of control codes must be performed as soon they arrive * because they can be embedded inside a control sequence, and * they must not cause conflicts with sequences. */ - if(control) { + if (control) { tcontrolcode(u); /* * control codes are not shown ever */ return; - } else if(term.esc & ESC_START) { - if(term.esc & ESC_CSI) { + } else if (term.esc & ESC_START) { + if (term.esc & ESC_CSI) { csiescseq.buf[csiescseq.len++] = u; - if(BETWEEN(u, 0x40, 0x7E) + if (BETWEEN(u, 0x40, 0x7E) || csiescseq.len >= \ sizeof(csiescseq.buf)-1) { term.esc = 0; @@ -2738,9 +3059,11 @@ tputc(Rune u) { csihandle(); } return; - } else if(term.esc & ESC_ALTCHARSET) { + } else if (term.esc & ESC_UTF8) { + tdefutf8(u); + } else if (term.esc & ESC_ALTCHARSET) { tdeftran(u); - } else if(term.esc & ESC_TEST) { + } else if (term.esc & ESC_TEST) { tdectest(u); } else { if (!eschandle(u)) @@ -2754,34 +3077,34 @@ tputc(Rune u) { */ return; } - if(sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y)) + if (sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y)) selclear(NULL); gp = &term.line[term.c.y][term.c.x]; - if(IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) { + if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) { gp->mode |= ATTR_WRAP; tnewline(1); gp = &term.line[term.c.y][term.c.x]; } - if(IS_SET(MODE_INSERT) && term.c.x+width < term.col) + if (IS_SET(MODE_INSERT) && term.c.x+width < term.col) memmove(gp+width, gp, (term.col - term.c.x - width) * sizeof(Glyph)); - if(term.c.x+width > term.col) { + if (term.c.x+width > term.col) { tnewline(1); gp = &term.line[term.c.y][term.c.x]; } tsetchar(u, &term.c.attr, term.c.x, term.c.y); - if(width == 2) { + if (width == 2) { gp->mode |= ATTR_WIDE; - if(term.c.x+1 < term.col) { + if (term.c.x+1 < term.col) { gp[1].u = '\0'; gp[1].mode = ATTR_WDUMMY; } } - if(term.c.x+width < term.col) { + if (term.c.x+width < term.col) { tmoveto(term.c.x+width, term.c.y); } else { term.c.state |= CURSOR_WRAPNEXT; @@ -2789,14 +3112,15 @@ tputc(Rune u) { } void -tresize(int col, int row) { +tresize(int col, int row) +{ int i; int minrow = MIN(row, term.row); int mincol = MIN(col, term.col); - bool *bp; + int *bp; TCursor c; - if(col < 1 || row < 1) { + if (col < 1 || row < 1) { fprintf(stderr, "tresize: error resizing to %dx%d\n", col, row); return; @@ -2807,7 +3131,7 @@ tresize(int col, int row) { * tscrollup would work here, but we can optimize to * memmove because we're freeing the earlier lines */ - for(i = 0; i <= term.c.y - row; i++) { + for (i = 0; i <= term.c.y - row; i++) { free(term.line[i]); free(term.alt[i]); } @@ -2816,7 +3140,7 @@ tresize(int col, int row) { memmove(term.line, term.line + i, row * sizeof(Line)); memmove(term.alt, term.alt + i, row * sizeof(Line)); } - for(i += row; i < term.row; i++) { + for (i += row; i < term.row; i++) { free(term.line[i]); free(term.alt[i]); } @@ -2831,23 +3155,23 @@ tresize(int col, int row) { term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); /* resize each row to new width, zero-pad if needed */ - for(i = 0; i < minrow; i++) { + for (i = 0; i < minrow; i++) { term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph)); term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph)); } /* allocate any new rows */ - for(/* i == minrow */; i < row; i++) { + for (/* i == minrow */; i < row; i++) { term.line[i] = xmalloc(col * sizeof(Glyph)); term.alt[i] = xmalloc(col * sizeof(Glyph)); } - if(col > term.col) { + if (col > term.col) { bp = term.tabs + term.col; memset(bp, 0, sizeof(*term.tabs) * (col - term.col)); - while(--bp > term.tabs && !*bp) + while (--bp > term.tabs && !*bp) /* nothing */ ; - for(bp += tabspaces; bp < term.tabs + col; bp += tabspaces) + for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces) *bp = 1; } /* update terminal size */ @@ -2859,11 +3183,11 @@ tresize(int col, int row) { tmoveto(term.c.x, term.c.y); /* Clearing both screens (it makes dirty all lines) */ c = term.c; - for(i = 0; i < 2; i++) { - if(mincol < col && 0 < minrow) { + for (i = 0; i < 2; i++) { + if (mincol < col && 0 < minrow) { tclearregion(mincol, 0, col - 1, minrow - 1); } - if(0 < col && minrow < row) { + if (0 < col && minrow < row) { tclearregion(0, minrow, col - 1, row - 1); } tswapscreen(); @@ -2873,7 +3197,8 @@ tresize(int col, int row) { } void -xresize(int col, int row) { +xresize(int col, int row) +{ xw.tw = MAX(1, col * xw.cw); xw.th = MAX(1, row * xw.ch); @@ -2885,17 +3210,19 @@ xresize(int col, int row) { } ushort -sixd_to_16bit(int x) { +sixd_to_16bit(int x) +{ return x == 0 ? 0 : 0x3737 + 0x2828 * x; } -bool -xloadcolor(int i, const char *name, Color *ncolor) { +int +xloadcolor(int i, const char *name, Color *ncolor) +{ XRenderColor color = { .alpha = 0xffff }; - if(!name) { - if(BETWEEN(i, 16, 255)) { /* 256 color */ - if(i < 6*6*6+16) { /* same colors as xterm */ + if (!name) { + if (BETWEEN(i, 16, 255)) { /* 256 color */ + if (i < 6*6*6+16) { /* same colors as xterm */ color.red = sixd_to_16bit( ((i-16)/36)%6 ); color.green = sixd_to_16bit( ((i-16)/6) %6 ); color.blue = sixd_to_16bit( ((i-16)/1) %6 ); @@ -2908,69 +3235,66 @@ xloadcolor(int i, const char *name, Color *ncolor) { } else name = colorname[i]; } + return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor); } void -xloadcols(void) { +xloadcols(void) +{ int i; - static bool loaded; + static int loaded; Color *cp; - if(loaded) { + if (loaded) { for (cp = dc.col; cp < &dc.col[LEN(dc.col)]; ++cp) XftColorFree(xw.dpy, xw.vis, xw.cmap, cp); } - for(i = 0; i < LEN(dc.col); i++) - if(!xloadcolor(i, NULL, &dc.col[i])) { - if(colorname[i]) + for (i = 0; i < LEN(dc.col); i++) + if (!xloadcolor(i, NULL, &dc.col[i])) { + if (colorname[i]) die("Could not allocate color '%s'\n", colorname[i]); else die("Could not allocate color %d\n", i); } - loaded = true; + loaded = 1; } int -xsetcolorname(int x, const char *name) { +xsetcolorname(int x, const char *name) +{ Color ncolor; - if(!BETWEEN(x, 0, LEN(dc.col))) + if (!BETWEEN(x, 0, LEN(dc.col))) return 1; - if(!xloadcolor(x, name, &ncolor)) + if (!xloadcolor(x, name, &ncolor)) return 1; XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]); dc.col[x] = ncolor; - return 0; -} -void -xtermclear(int col1, int row1, int col2, int row2) { - XftDrawRect(xw.draw, - &dc.col[IS_SET(MODE_REVERSE) ? defaultfg : defaultbg], - borderpx + col1 * xw.cw, - borderpx + row1 * xw.ch, - (col2-col1+1) * xw.cw, - (row2-row1+1) * xw.ch); + return 0; } /* * Absolute coordinates. */ void -xclear(int x1, int y1, int x2, int y2) { +xclear(int x1, int y1, int x2, int y2) +{ XftDrawRect(xw.draw, &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg], x1, y1, x2-x1, y2-y1); } void -xhints(void) { - XClassHint class = {opt_class ? opt_class : termname, termname}; +xhints(void) +{ + XClassHint class = {opt_name ? opt_name : termname, + opt_class ? opt_class : termname}; XWMHints wm = {.flags = InputHint, .input = 1}; XSizeHints *sizeh = NULL; @@ -2983,12 +3307,12 @@ xhints(void) { sizeh->width_inc = xw.cw; sizeh->base_height = 2 * borderpx; sizeh->base_width = 2 * borderpx; - if(xw.isfixed == True) { + if (xw.isfixed) { sizeh->flags |= PMaxSize | PMinSize; sizeh->min_width = sizeh->max_width = xw.w; sizeh->min_height = sizeh->max_height = xw.h; } - if(xw.gm & (XValue|YValue)) { + if (xw.gm & (XValue|YValue)) { sizeh->flags |= USPosition | PWinGravity; sizeh->x = xw.l; sizeh->y = xw.t; @@ -3001,8 +3325,9 @@ xhints(void) { } int -xgeommasktogravity(int mask) { - switch(mask & (XNegative|YNegative)) { +xgeommasktogravity(int mask) +{ + switch (mask & (XNegative|YNegative)) { case 0: return NorthWestGravity; case XNegative: @@ -3010,23 +3335,30 @@ xgeommasktogravity(int mask) { case YNegative: return SouthWestGravity; } + return SouthEastGravity; } int -xloadfont(Font *f, FcPattern *pattern) { +xloadfont(Font *f, FcPattern *pattern) +{ FcPattern *match; FcResult result; + XGlyphInfo extents; - match = FcFontMatch(NULL, pattern, &result); - if(!match) + match = XftFontMatch(xw.dpy, xw.scr, pattern, &result); + if (!match) return 1; - if(!(f->match = XftFontOpenPattern(xw.dpy, match))) { + if (!(f->match = XftFontOpenPattern(xw.dpy, match))) { FcPatternDestroy(match); return 1; } + XftTextExtentsUtf8(xw.dpy, f->match, + (const FcChar8 *) ascii_printable, + strlen(ascii_printable), &extents); + f->set = NULL; f->pattern = FcPatternDuplicate(pattern); @@ -3036,38 +3368,38 @@ xloadfont(Font *f, FcPattern *pattern) { f->rbearing = f->match->max_advance_width; f->height = f->ascent + f->descent; - f->width = f->lbearing + f->rbearing; + f->width = DIVCEIL(extents.xOff, strlen(ascii_printable)); return 0; } void -xloadfonts(char *fontstr, double fontsize) { +xloadfonts(char *fontstr, double fontsize) +{ FcPattern *pattern; - FcResult r_sz, r_psz; double fontval; float ceilf(float); - if(fontstr[0] == '-') { + if (fontstr[0] == '-') { pattern = XftXlfdParse(fontstr, False, False); } else { pattern = FcNameParse((FcChar8 *)fontstr); } - if(!pattern) + if (!pattern) die("st: can't open font %s\n", fontstr); - if(fontsize > 1) { + if (fontsize > 1) { FcPatternDel(pattern, FC_PIXEL_SIZE); FcPatternDel(pattern, FC_SIZE); FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize); usedfontsize = fontsize; } else { - r_psz = FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval); - r_sz = FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval); - if(r_psz == FcResultMatch) { + if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) == + FcResultMatch) { usedfontsize = fontval; - } else if(r_sz == FcResultMatch) { + } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) == + FcResultMatch) { usedfontsize = -1; } else { /* @@ -3080,17 +3412,14 @@ xloadfonts(char *fontstr, double fontsize) { defaultfontsize = usedfontsize; } - FcConfigSubstitute(0, pattern, FcMatchPattern); - FcDefaultSubstitute(pattern); - - if(xloadfont(&dc.font, pattern)) + if (xloadfont(&dc.font, pattern)) die("st: can't open font %s\n", fontstr); - if(usedfontsize < 0) { + if (usedfontsize < 0) { FcPatternGetDouble(dc.font.match->pattern, FC_PIXEL_SIZE, 0, &fontval); usedfontsize = fontval; - if(fontsize == 0) + if (fontsize == 0) defaultfontsize = fontval; } @@ -3100,34 +3429,36 @@ xloadfonts(char *fontstr, double fontsize) { FcPatternDel(pattern, FC_SLANT); FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); - if(xloadfont(&dc.ifont, pattern)) + if (xloadfont(&dc.ifont, pattern)) die("st: can't open font %s\n", fontstr); FcPatternDel(pattern, FC_WEIGHT); FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); - if(xloadfont(&dc.ibfont, pattern)) + if (xloadfont(&dc.ibfont, pattern)) die("st: can't open font %s\n", fontstr); FcPatternDel(pattern, FC_SLANT); FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); - if(xloadfont(&dc.bfont, pattern)) + if (xloadfont(&dc.bfont, pattern)) die("st: can't open font %s\n", fontstr); FcPatternDestroy(pattern); } void -xunloadfont(Font *f) { +xunloadfont(Font *f) +{ XftFontClose(xw.dpy, f->match); FcPatternDestroy(f->pattern); - if(f->set) + if (f->set) FcFontSetDestroy(f->set); } void -xunloadfonts(void) { +xunloadfonts(void) +{ /* Free the loaded fonts in the font cache. */ - while(frclen > 0) + while (frclen > 0) XftFontClose(xw.dpy, frc[--frclen].font); xunloadfont(&dc.font); @@ -3137,46 +3468,52 @@ xunloadfonts(void) { } void -xzoom(const Arg *arg) { +xzoom(const Arg *arg) +{ Arg larg; - larg.i = usedfontsize + arg->i; + larg.f = usedfontsize + arg->f; xzoomabs(&larg); } void -xzoomabs(const Arg *arg) { +xzoomabs(const Arg *arg) +{ xunloadfonts(); - xloadfonts(usedfont, arg->i); + xloadfonts(usedfont, arg->f); cresize(0, 0); + ttyresize(); redraw(); xhints(); } void -xzoomreset(const Arg *arg) { +xzoomreset(const Arg *arg) +{ Arg larg; - if(defaultfontsize > 0) { - larg.i = defaultfontsize; + if (defaultfontsize > 0) { + larg.f = defaultfontsize; xzoomabs(&larg); } } void -xinit(void) { +xinit(void) +{ XGCValues gcvalues; Cursor cursor; Window parent; pid_t thispid = getpid(); + XColor xmousefg, xmousebg; - if(!(xw.dpy = XOpenDisplay(NULL))) + if (!(xw.dpy = XOpenDisplay(NULL))) die("Can't open display\n"); xw.scr = XDefaultScreen(xw.dpy); xw.vis = XDefaultVisual(xw.dpy, xw.scr); /* font */ - if(!FcInit()) + if (!FcInit()) die("Could not init fontconfig.\n"); usedfont = (opt_font == NULL)? font : opt_font; @@ -3189,10 +3526,10 @@ xinit(void) { /* adjust fixed window geometry */ xw.w = 2 * borderpx + term.col * xw.cw; xw.h = 2 * borderpx + term.row * xw.ch; - if(xw.gm & XNegative) + if (xw.gm & XNegative) xw.l += DisplayWidth(xw.dpy, xw.scr) - xw.w - 2; - if(xw.gm & YNegative) - xw.t += DisplayWidth(xw.dpy, xw.scr) - xw.h - 2; + if (xw.gm & YNegative) + xw.t += DisplayHeight(xw.dpy, xw.scr) - xw.h - 2; /* Events */ xw.attrs.background_pixel = dc.col[defaultbg].pixel; @@ -3223,11 +3560,11 @@ xinit(void) { xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap); /* input methods */ - if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { + if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { XSetLocaleModifiers("@im=local"); - if((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { + if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { XSetLocaleModifiers("@im="); - if((xw.xim = XOpenIM(xw.dpy, + if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { die("XOpenIM failed. Could not open input" " device.\n"); @@ -3237,15 +3574,26 @@ xinit(void) { xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing | XIMStatusNothing, XNClientWindow, xw.win, XNFocusWindow, xw.win, NULL); - if(xw.xic == NULL) + if (xw.xic == NULL) die("XCreateIC failed. Could not obtain input method.\n"); /* white cursor, black outline */ - cursor = XCreateFontCursor(xw.dpy, XC_xterm); + cursor = XCreateFontCursor(xw.dpy, mouseshape); XDefineCursor(xw.dpy, xw.win, cursor); - XRecolorCursor(xw.dpy, cursor, - &(XColor){.red = 0xffff, .green = 0xffff, .blue = 0xffff}, - &(XColor){.red = 0x0000, .green = 0x0000, .blue = 0x0000}); + + if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) { + xmousefg.red = 0xffff; + xmousefg.green = 0xffff; + xmousefg.blue = 0xffff; + } + + if (XParseColor(xw.dpy, xw.cmap, colorname[mousebg], &xmousebg) == 0) { + xmousebg.red = 0x0000; + xmousebg.green = 0x0000; + xmousebg.blue = 0x0000; + } + + XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg); xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False); xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False); @@ -3278,28 +3626,28 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x FcCharSet *fccharset; int i, f, numspecs = 0; - for(i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) { + for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) { /* Fetch rune and mode for current glyph. */ rune = glyphs[i].u; mode = glyphs[i].mode; /* Skip dummy wide-character spacing. */ - if(mode == ATTR_WDUMMY) + if (mode == ATTR_WDUMMY) continue; /* Determine font for glyph if different from previous glyph. */ - if(prevmode != mode) { + if (prevmode != mode) { prevmode = mode; font = &dc.font; frcflags = FRC_NORMAL; runewidth = xw.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f); - if((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) { + if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) { font = &dc.ibfont; frcflags = FRC_ITALICBOLD; - } else if(mode & ATTR_ITALIC) { + } else if (mode & ATTR_ITALIC) { font = &dc.ifont; frcflags = FRC_ITALIC; - } else if(mode & ATTR_BOLD) { + } else if (mode & ATTR_BOLD) { font = &dc.bfont; frcflags = FRC_BOLD; } @@ -3308,7 +3656,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x /* Lookup character index with default font. */ glyphidx = XftCharIndex(xw.dpy, font->match, rune); - if(glyphidx) { + if (glyphidx) { specs[numspecs].font = font->match; specs[numspecs].glyph = glyphidx; specs[numspecs].x = (short)xp; @@ -3319,23 +3667,23 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x } /* Fallback on font cache, search the font cache for match. */ - for(f = 0; f < frclen; f++) { + for (f = 0; f < frclen; f++) { glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune); /* Everything correct. */ - if(glyphidx && frc[f].flags == frcflags) + if (glyphidx && frc[f].flags == frcflags) break; /* We got a default font for a not found glyph. */ - if(!glyphidx && frc[f].flags == frcflags + if (!glyphidx && frc[f].flags == frcflags && frc[f].unicodep == rune) { break; } } /* Nothing was found. Use fontconfig to find matching font. */ - if(f >= frclen) { - if(!font->set) + if (f >= frclen) { + if (!font->set) font->set = FcFontSort(0, font->pattern, - FcTrue, 0, &fcres); + 1, 0, &fcres); fcsets[0] = font->set; /* @@ -3351,8 +3699,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x FcCharSetAddChar(fccharset, rune); FcPatternAddCharSet(fcpattern, FC_CHARSET, fccharset); - FcPatternAddBool(fcpattern, FC_SCALABLE, - FcTrue); + FcPatternAddBool(fcpattern, FC_SCALABLE, 1); FcConfigSubstitute(0, fcpattern, FcMatchPattern); @@ -3364,7 +3711,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x /* * Overwrite or create the new cache entry. */ - if(frclen >= LEN(frc)) { + if (frclen >= LEN(frc)) { frclen = LEN(frc) - 1; XftFontClose(xw.dpy, frc[frclen].font); frc[frclen].unicodep = 0; @@ -3387,7 +3734,7 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x specs[numspecs].font = frc[f].font; specs[numspecs].glyph = glyphidx; specs[numspecs].x = (short)xp; - specs[numspecs].y = (short)(winy + frc[f].font->ascent); + specs[numspecs].y = (short)yp; xp += runewidth; numspecs++; } @@ -3396,7 +3743,8 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x } void -xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y) { +xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y) +{ int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1); int winx = borderpx + x * xw.cw, winy = borderpx + y * xw.ch, width = charlen * xw.cw; @@ -3405,16 +3753,16 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i XRectangle r; /* Determine foreground and background colors based on mode. */ - if(base.fg == defaultfg) { - if(base.mode & ATTR_ITALIC) + if (base.fg == defaultfg) { + if (base.mode & ATTR_ITALIC) base.fg = defaultitalic; - else if((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) + else if ((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD)) base.fg = defaultitalic; - else if(base.mode & ATTR_UNDERLINE) + else if (base.mode & ATTR_UNDERLINE) base.fg = defaultunderline; } - if(IS_TRUECOL(base.fg)) { + if (IS_TRUECOL(base.fg)) { colfg.alpha = 0xffff; colfg.red = TRUERED(base.fg); colfg.green = TRUEGREEN(base.fg); @@ -3425,7 +3773,7 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i fg = &dc.col[base.fg]; } - if(IS_TRUECOL(base.bg)) { + if (IS_TRUECOL(base.bg)) { colbg.alpha = 0xffff; colbg.green = TRUEGREEN(base.bg); colbg.red = TRUERED(base.bg); @@ -3437,11 +3785,11 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i } /* Change basic system colors [0-7] to bright system colors [8-15] */ - if((base.mode & ATTR_BOLD_FAINT) == ATTR_BOLD && BETWEEN(base.fg, 0, 7)) + if ((base.mode & ATTR_BOLD_FAINT) == ATTR_BOLD && BETWEEN(base.fg, 0, 7)) fg = &dc.col[base.fg + 8]; - if(IS_SET(MODE_REVERSE)) { - if(fg == &dc.col[defaultfg]) { + if (IS_SET(MODE_REVERSE)) { + if (fg == &dc.col[defaultfg]) { fg = &dc.col[defaultbg]; } else { colfg.red = ~fg->color.red; @@ -3453,7 +3801,7 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i fg = &revfg; } - if(bg == &dc.col[defaultbg]) { + if (bg == &dc.col[defaultbg]) { bg = &dc.col[defaultfg]; } else { colbg.red = ~bg->color.red; @@ -3466,13 +3814,13 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i } } - if(base.mode & ATTR_REVERSE) { + if (base.mode & ATTR_REVERSE) { temp = fg; fg = bg; bg = temp; } - if((base.mode & ATTR_BOLD_FAINT) == ATTR_FAINT) { + if ((base.mode & ATTR_BOLD_FAINT) == ATTR_FAINT) { colfg.red = fg->color.red / 2; colfg.green = fg->color.green / 2; colfg.blue = fg->color.blue / 2; @@ -3480,24 +3828,24 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i fg = &revfg; } - if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK) + if (base.mode & ATTR_BLINK && term.mode & MODE_BLINK) fg = bg; - if(base.mode & ATTR_INVISIBLE) + if (base.mode & ATTR_INVISIBLE) fg = bg; /* Intelligent cleaning up of the borders. */ - if(x == 0) { + if (x == 0) { xclear(0, (y == 0)? 0 : winy, borderpx, winy + xw.ch + ((y >= term.row-1)? xw.h : 0)); } - if(x + charlen >= term.col) { + if (x + charlen >= term.col) { xclear(winx + width, (y == 0)? 0 : winy, xw.w, ((y >= term.row-1)? xw.h : (winy + xw.ch))); } - if(y == 0) + if (y == 0) xclear(winx, 0, winx + width, borderpx); - if(y == term.row-1) + if (y == term.row-1) xclear(winx, winy + xw.ch, winx + width, xw.h); /* Clean up the region we want to draw to. */ @@ -3514,12 +3862,12 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i XftDrawGlyphFontSpec(xw.draw, fg, specs, len); /* Render underline and strikethrough. */ - if(base.mode & ATTR_UNDERLINE) { + if (base.mode & ATTR_UNDERLINE) { XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, width, 1); } - if(base.mode & ATTR_STRUCK) { + if (base.mode & ATTR_STRUCK) { XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3, width, 1); } @@ -3529,18 +3877,23 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i } void -xdrawglyph(Glyph g, int x, int y) { +xdrawglyph(Glyph g, int x, int y) +{ int numspecs; XftGlyphFontSpec spec; + numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y); xdrawglyphfontspecs(&spec, g, numspecs, x, y); } void -xdrawcursor(void) { +xdrawcursor(void) +{ static int oldx = 0, oldy = 0; int curx; - Glyph g = {' ', ATTR_NULL, defaultbg, defaultcs}; + Glyph g = {' ', ATTR_NULL, defaultbg, defaultcs}, og; + int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN); + Color drawcol; LIMIT(oldx, 0, term.col-1); LIMIT(oldy, 0, term.row-1); @@ -3548,63 +3901,86 @@ xdrawcursor(void) { curx = term.c.x; /* adjust position if in dummy */ - if(term.line[oldy][oldx].mode & ATTR_WDUMMY) + if (term.line[oldy][oldx].mode & ATTR_WDUMMY) oldx--; - if(term.line[term.c.y][curx].mode & ATTR_WDUMMY) + if (term.line[term.c.y][curx].mode & ATTR_WDUMMY) curx--; + /* remove the old cursor */ + og = term.line[oldy][oldx]; + if (ena_sel && selected(oldx, oldy)) + og.mode ^= ATTR_REVERSE; + xdrawglyph(og, oldx, oldy); + g.u = term.line[term.c.y][term.c.x].u; - /* remove the old cursor */ - xdrawglyph(term.line[oldy][oldx], oldx, oldy); + /* + * Select the right color for the right mode. + */ + if (IS_SET(MODE_REVERSE)) { + g.mode |= ATTR_REVERSE; + g.bg = defaultfg; + if (ena_sel && selected(term.c.x, term.c.y)) { + drawcol = dc.col[defaultcs]; + g.fg = defaultrcs; + } else { + drawcol = dc.col[defaultrcs]; + g.fg = defaultcs; + } + } else { + if (ena_sel && selected(term.c.x, term.c.y)) { + drawcol = dc.col[defaultrcs]; + g.fg = defaultfg; + g.bg = defaultrcs; + } else { + drawcol = dc.col[defaultcs]; + } + } - if(IS_SET(MODE_HIDE)) + if (IS_SET(MODE_HIDE)) return; /* draw the new one */ - if(xw.state & WIN_FOCUSED) { + if (xw.state & WIN_FOCUSED) { switch (xw.cursor) { - case 0: /* Blinking Block */ - case 1: /* Blinking Block (Default) */ - case 2: /* Steady Block */ - if(IS_SET(MODE_REVERSE)) { - g.mode |= ATTR_REVERSE; - g.fg = defaultcs; - g.bg = defaultfg; - } - - g.mode |= term.line[term.c.y][curx].mode & ATTR_WIDE; - xdrawglyph(g, term.c.x, term.c.y); - break; - case 3: /* Blinking Underline */ - case 4: /* Steady Underline */ - XftDrawRect(xw.draw, &dc.col[defaultcs], - borderpx + curx * xw.cw, - borderpx + (term.c.y + 1) * xw.ch - cursorthickness, - xw.cw, cursorthickness); - break; - case 5: /* Blinking bar */ - case 6: /* Steady bar */ - XftDrawRect(xw.draw, &dc.col[defaultcs], - borderpx + curx * xw.cw, - borderpx + term.c.y * xw.ch, - cursorthickness, xw.ch); - break; + case 7: /* st extension: snowman */ + utf8decode("☃", &g.u, UTF_SIZ); + case 0: /* Blinking Block */ + case 1: /* Blinking Block (Default) */ + case 2: /* Steady Block */ + g.mode |= term.line[term.c.y][curx].mode & ATTR_WIDE; + xdrawglyph(g, term.c.x, term.c.y); + break; + case 3: /* Blinking Underline */ + case 4: /* Steady Underline */ + XftDrawRect(xw.draw, &drawcol, + borderpx + curx * xw.cw, + borderpx + (term.c.y + 1) * xw.ch - \ + cursorthickness, + xw.cw, cursorthickness); + break; + case 5: /* Blinking bar */ + case 6: /* Steady bar */ + XftDrawRect(xw.draw, &drawcol, + borderpx + curx * xw.cw, + borderpx + term.c.y * xw.ch, + cursorthickness, xw.ch); + break; } } else { - XftDrawRect(xw.draw, &dc.col[defaultcs], + XftDrawRect(xw.draw, &drawcol, borderpx + curx * xw.cw, borderpx + term.c.y * xw.ch, xw.cw - 1, 1); - XftDrawRect(xw.draw, &dc.col[defaultcs], + XftDrawRect(xw.draw, &drawcol, borderpx + curx * xw.cw, borderpx + term.c.y * xw.ch, 1, xw.ch - 1); - XftDrawRect(xw.draw, &dc.col[defaultcs], + XftDrawRect(xw.draw, &drawcol, borderpx + (curx + 1) * xw.cw - 1, borderpx + term.c.y * xw.ch, 1, xw.ch - 1); - XftDrawRect(xw.draw, &dc.col[defaultcs], + XftDrawRect(xw.draw, &drawcol, borderpx + curx * xw.cw, borderpx + (term.c.y + 1) * xw.ch - 1, xw.cw, 1); @@ -3614,7 +3990,8 @@ xdrawcursor(void) { void -xsettitle(char *p) { +xsettitle(char *p) +{ XTextProperty prop; Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle, @@ -3625,18 +4002,21 @@ xsettitle(char *p) { } void -xresettitle(void) { +xresettitle(void) +{ xsettitle(opt_title ? opt_title : "st"); } void -redraw(void) { +redraw(void) +{ tfulldirt(); draw(); } void -draw(void) { +draw(void) +{ drawregion(0, 0, term.col, term.row); XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, xw.w, xw.h, 0, 0); @@ -3646,75 +4026,80 @@ draw(void) { } void -drawregion(int x1, int y1, int x2, int y2) { +drawregion(int x1, int y1, int x2, int y2) +{ int i, x, y, ox, numspecs; Glyph base, new; - XftGlyphFontSpec* specs; - bool ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN); + XftGlyphFontSpec *specs; + int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN); - if(!(xw.state & WIN_VISIBLE)) + if (!(xw.state & WIN_VISIBLE)) return; - for(y = y1; y < y2; y++) { - if(!term.dirty[y]) + for (y = y1; y < y2; y++) { + if (!term.dirty[y]) continue; - xtermclear(0, y, term.col, y); term.dirty[y] = 0; specs = term.specbuf; - numspecs = xmakeglyphfontspecs(specs, &term.line[y][0], x2 - x1, x1, y); + numspecs = xmakeglyphfontspecs(specs, &term.line[y][x1], x2 - x1, x1, y); i = ox = 0; - for(x = x1; x < x2 && i < numspecs; x++) { + for (x = x1; x < x2 && i < numspecs; x++) { new = term.line[y][x]; - if(new.mode == ATTR_WDUMMY) + if (new.mode == ATTR_WDUMMY) continue; - if(ena_sel && selected(x, y)) + if (ena_sel && selected(x, y)) new.mode ^= ATTR_REVERSE; - if(i > 0 && ATTRCMP(base, new)) { + if (i > 0 && ATTRCMP(base, new)) { xdrawglyphfontspecs(specs, base, i, ox, y); specs += i; numspecs -= i; i = 0; } - if(i == 0) { + if (i == 0) { ox = x; base = new; } i++; } - if(i > 0) + if (i > 0) xdrawglyphfontspecs(specs, base, i, ox, y); } xdrawcursor(); } void -expose(XEvent *ev) { +expose(XEvent *ev) +{ redraw(); } void -visibility(XEvent *ev) { +visibility(XEvent *ev) +{ XVisibilityEvent *e = &ev->xvisibility; MODBIT(xw.state, e->state != VisibilityFullyObscured, WIN_VISIBLE); } void -unmap(XEvent *ev) { +unmap(XEvent *ev) +{ xw.state &= ~WIN_VISIBLE; } void -xsetpointermotion(int set) { +xsetpointermotion(int set) +{ MODBIT(xw.attrs.event_mask, set, PointerMotionMask); XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); } void -xseturgency(int add) { +xseturgency(int add) +{ XWMHints *h = XGetWMHints(xw.dpy, xw.win); MODBIT(h->flags, add, XUrgencyHint); @@ -3723,67 +4108,71 @@ xseturgency(int add) { } void -focus(XEvent *ev) { +focus(XEvent *ev) +{ XFocusChangeEvent *e = &ev->xfocus; - if(e->mode == NotifyGrab) + if (e->mode == NotifyGrab) return; - if(ev->type == FocusIn) { + if (ev->type == FocusIn) { XSetICFocus(xw.xic); xw.state |= WIN_FOCUSED; xseturgency(0); - if(IS_SET(MODE_FOCUS)) + if (IS_SET(MODE_FOCUS)) ttywrite("\033[I", 3); } else { XUnsetICFocus(xw.xic); xw.state &= ~WIN_FOCUSED; - if(IS_SET(MODE_FOCUS)) + if (IS_SET(MODE_FOCUS)) ttywrite("\033[O", 3); } } -bool -match(uint mask, uint state) { +int +match(uint mask, uint state) +{ return mask == XK_ANY_MOD || mask == (state & ~ignoremod); } void -numlock(const Arg *dummy) { +numlock(const Arg *dummy) +{ term.numlock ^= 1; } char* -kmap(KeySym k, uint state) { +kmap(KeySym k, uint state) +{ Key *kp; int i; /* Check for mapped keys out of X11 function keys. */ - for(i = 0; i < LEN(mappedkeys); i++) { - if(mappedkeys[i] == k) + for (i = 0; i < LEN(mappedkeys); i++) { + if (mappedkeys[i] == k) break; } - if(i == LEN(mappedkeys)) { - if((k & 0xFFFF) < 0xFD00) + if (i == LEN(mappedkeys)) { + if ((k & 0xFFFF) < 0xFD00) return NULL; } - for(kp = key; kp < key + LEN(key); kp++) { - if(kp->k != k) + for (kp = key; kp < key + LEN(key); kp++) { + if (kp->k != k) continue; - if(!match(kp->mask, state)) + if (!match(kp->mask, state)) continue; - if(IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0) + if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0) continue; - if(term.numlock && kp->appkey == 2) + if (term.numlock && kp->appkey == 2) continue; - if(IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0) + if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0) continue; - if(IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0) + if (IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0) continue; return kp->s; @@ -3793,7 +4182,8 @@ kmap(KeySym k, uint state) { } void -kpress(XEvent *ev) { +kpress(XEvent *ev) +{ XKeyEvent *e = &ev->xkey; KeySym ksym; char buf[32], *customkey; @@ -3802,30 +4192,30 @@ kpress(XEvent *ev) { Status status; Shortcut *bp; - if(IS_SET(MODE_KBDLOCK)) + if (IS_SET(MODE_KBDLOCK)) return; len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status); /* 1. shortcuts */ - for(bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) { - if(ksym == bp->keysym && match(bp->mod, e->state)) { + for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) { + if (ksym == bp->keysym && match(bp->mod, e->state)) { bp->func(&(bp->arg)); return; } } /* 2. custom keys from config.h */ - if((customkey = kmap(ksym, e->state))) { + if ((customkey = kmap(ksym, e->state))) { ttysend(customkey, strlen(customkey)); return; } /* 3. composed string from input method */ - if(len == 0) + if (len == 0) return; - if(len == 1 && e->state & Mod1Mask) { - if(IS_SET(MODE_8BIT)) { - if(*buf < 0177) { + if (len == 1 && e->state & Mod1Mask) { + if (IS_SET(MODE_8BIT)) { + if (*buf < 0177) { c = *buf | 0x80; len = utf8encode(c, buf); } @@ -3840,32 +4230,34 @@ kpress(XEvent *ev) { void -cmessage(XEvent *e) { +cmessage(XEvent *e) +{ /* * See xembed specs * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html */ - if(e->xclient.message_type == xw.xembed && e->xclient.format == 32) { - if(e->xclient.data.l[1] == XEMBED_FOCUS_IN) { + if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) { + if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) { xw.state |= WIN_FOCUSED; xseturgency(0); - } else if(e->xclient.data.l[1] == XEMBED_FOCUS_OUT) { + } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) { xw.state &= ~WIN_FOCUSED; } - } else if(e->xclient.data.l[0] == xw.wmdeletewin) { + } else if (e->xclient.data.l[0] == xw.wmdeletewin) { /* Send SIGHUP to shell */ kill(pid, SIGHUP); - exit(EXIT_SUCCESS); + exit(0); } } void -cresize(int width, int height) { +cresize(int width, int height) +{ int col, row; - if(width != 0) + if (width != 0) xw.w = width; - if(height != 0) + if (height != 0) xw.h = height; col = (xw.w - 2 * borderpx) / xw.cw; @@ -3873,19 +4265,21 @@ cresize(int width, int height) { tresize(col, row); xresize(col, row); - ttyresize(); } void -resize(XEvent *e) { - if(e->xconfigure.width == xw.w && e->xconfigure.height == xw.h) +resize(XEvent *e) +{ + if (e->xconfigure.width == xw.w && e->xconfigure.height == xw.h) return; cresize(e->xconfigure.width, e->xconfigure.height); + ttyresize(); } void -run(void) { +run(void) +{ XEvent ev; int w = xw.w, h = xw.h; fd_set rfd; @@ -3896,38 +4290,46 @@ run(void) { /* Waiting for window mapping */ do { XNextEvent(xw.dpy, &ev); - if(ev.type == ConfigureNotify) { + /* + * This XFilterEvent call is required because of XOpenIM. It + * does filter out the key event and some client message for + * the input method too. + */ + if (XFilterEvent(&ev, None)) + continue; + if (ev.type == ConfigureNotify) { w = ev.xconfigure.width; h = ev.xconfigure.height; } - } while(ev.type != MapNotify); + } while (ev.type != MapNotify); - ttynew(); cresize(w, h); + ttynew(); + ttyresize(); clock_gettime(CLOCK_MONOTONIC, &last); lastblink = last; - for(xev = actionfps;;) { + for (xev = actionfps;;) { FD_ZERO(&rfd); FD_SET(cmdfd, &rfd); FD_SET(xfd, &rfd); - if(pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) { - if(errno == EINTR) + if (pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) { + if (errno == EINTR) continue; die("select failed: %s\n", strerror(errno)); } - if(FD_ISSET(cmdfd, &rfd)) { + if (FD_ISSET(cmdfd, &rfd)) { ttyread(); - if(blinktimeout) { + if (blinktimeout) { blinkset = tattrset(ATTR_BLINK); - if(!blinkset) + if (!blinkset) MODBIT(term.mode, 0, MODE_BLINK); } } - if(FD_ISSET(xfd, &rfd)) + if (FD_ISSET(xfd, &rfd)) xev = actionfps; clock_gettime(CLOCK_MONOTONIC, &now); @@ -3936,35 +4338,35 @@ run(void) { tv = &drawtimeout; dodraw = 0; - if(blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) { + if (blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) { tsetdirtattr(ATTR_BLINK); term.mode ^= MODE_BLINK; lastblink = now; dodraw = 1; } deltatime = TIMEDIFF(now, last); - if(deltatime > 1000 / (xev ? xfps : actionfps)) { + if (deltatime > 1000 / (xev ? xfps : actionfps)) { dodraw = 1; last = now; } - if(dodraw) { - while(XPending(xw.dpy)) { + if (dodraw) { + while (XPending(xw.dpy)) { XNextEvent(xw.dpy, &ev); - if(XFilterEvent(&ev, None)) + if (XFilterEvent(&ev, None)) continue; - if(handler[ev.type]) + if (handler[ev.type]) (handler[ev.type])(&ev); } draw(); XFlush(xw.dpy); - if(xev && !FD_ISSET(xfd, &rfd)) + if (xev && !FD_ISSET(xfd, &rfd)) xev--; - if(!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) { - if(blinkset) { - if(TIMEDIFF(now, lastblink) \ + if (!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) { + if (blinkset) { + if (TIMEDIFF(now, lastblink) \ > blinktimeout) { drawtimeout.tv_nsec = 1000; } else { @@ -3985,32 +4387,36 @@ run(void) { } void -usage(void) { - die("%s " VERSION " (c) 2010-2015 st engineers\n" - "usage: st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n" - " [-i] [-t title] [-w windowid] [-e command ...] [command ...]\n" - " st [-a] [-v] [-c class] [-f font] [-g geometry] [-o file]\n" - " [-i] [-t title] [-w windowid] [-l line] [stty_args ...]\n", - argv0); +usage(void) +{ + die("usage: %s [-aiv] [-c class] [-f font] [-g geometry]" + " [-n name] [-o file]\n" + " [-T title] [-t title] [-w windowid]" + " [[-e] command [args ...]]\n" + " %s [-aiv] [-c class] [-f font] [-g geometry]" + " [-n name] [-o file]\n" + " [-T title] [-t title] [-w windowid] -l line" + " [stty_args ...]\n", argv0, argv0); } int -main(int argc, char *argv[]) { +main(int argc, char *argv[]) +{ uint cols = 80, rows = 24; xw.l = xw.t = 0; xw.isfixed = False; - xw.cursor = 0; + xw.cursor = cursorshape; ARGBEGIN { case 'a': - allowaltscreen = false; + allowaltscreen = 0; break; case 'c': opt_class = EARGF(usage()); break; case 'e': - if(argc > 0) + if (argc > 0) --argc, ++argv; goto run; case 'f': @@ -4021,7 +4427,7 @@ main(int argc, char *argv[]) { &xw.l, &xw.t, &cols, &rows); break; case 'i': - xw.isfixed = True; + xw.isfixed = 1; break; case 'o': opt_io = EARGF(usage()); @@ -4029,22 +4435,28 @@ main(int argc, char *argv[]) { case 'l': opt_line = EARGF(usage()); break; + case 'n': + opt_name = EARGF(usage()); + break; case 't': + case 'T': opt_title = EARGF(usage()); break; case 'w': opt_embed = EARGF(usage()); break; case 'v': + die("%s " VERSION " (c) 2010-2016 st engineers\n", argv0); + break; default: usage(); } ARGEND; run: - if(argc > 0) { + if (argc > 0) { /* eat all remaining arguments */ opt_cmd = argv; - if(!opt_title && !opt_line) + if (!opt_title && !opt_line) opt_title = basename(xstrdup(argv[0])); } setlocale(LC_CTYPE, "");