X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;f=st.c;h=3abf1b021258ce2b7f16f24bd1e14aa3247ed595;hb=ddb08dfe82ca196bb4f6e554e7db0fd32da58ba2;hp=540b4878e5ed4f44b72ef6840293cf999f98c3d9;hpb=a09138afa57adb4b76dba8ca72dc7ee2642a5c8d;p=st.git diff --git a/st.c b/st.c index 540b487..3abf1b0 100644 --- a/st.c +++ b/st.c @@ -1,33 +1,23 @@ /* See LICENSE for license details. */ +#include #include #include #include #include -#include #include #include #include #include #include #include -#include #include #include -#include -#include #include #include #include -#include #include -#include -#include #include -/* X11 */ -#include -#include - #include "st.h" #include "win.h" @@ -38,24 +28,36 @@ #elif defined(__FreeBSD__) || defined(__DragonFly__) #include #endif +#if defined(__OpenBSD__) + #include +#endif /* Arbitrary sizes */ #define UTF_INVALID 0xFFFD +#define UTF_SIZ 4 #define ESC_BUF_SIZ (128*UTF_SIZ) #define ESC_ARG_SIZ 16 #define STR_BUF_SIZ ESC_BUF_SIZ #define STR_ARG_SIZ ESC_ARG_SIZ /* macros */ -#define NUMMAXLEN(x) ((int)(sizeof(x) * 2.56 + 0.5) + 1) -#define DEFAULT(a, b) (a) = (a) ? (a) : (b) -#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177') +#define IS_SET(flag) ((term.mode & (flag)) != 0) +#define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == 0x7f) #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) -#define ISDELIM(u) (utf8strchr(worddelimiters, u) != NULL) - -/* constants */ -#define ISO14755CMD "dmenu -w \"$WINDOWID\" -p codepoint: b ? a : b; } +static inline int min(int a, int b) { return a < b ? a : b; } + +enum term_mode { + MODE_WRAP = 1 << 0, + MODE_INSERT = 1 << 1, + MODE_ALTSCREEN = 1 << 2, + MODE_CRLF = 1 << 3, + MODE_ECHO = 1 << 4, + MODE_PRINT = 1 << 5, + MODE_UTF8 = 1 << 6, +}; enum cursor_movement { CURSOR_SAVE, @@ -81,19 +83,65 @@ enum charset { enum escape_state { ESC_START = 1, ESC_CSI = 2, - ESC_STR = 4, /* OSC, PM, APC */ + ESC_STR = 4, /* DCS, 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, }; +typedef struct { + Glyph attr; /* current char attributes */ + int x; + int y; + char state; +} TCursor; + +typedef struct { + int mode; + int type; + int snap; + int swap; + /* + * Selection variables: + * nb – normalized coordinates of the beginning of the selection + * ne – normalized coordinates of the end of the selection + * ob – original coordinates of the beginning of the selection + * oe – original coordinates of the end of the selection + */ + struct { + int x, y; + } nb, ne, ob, oe; + + int alt; +} Selection; + +/* Internal representation of the screen */ +typedef struct { + int row; /* nb row */ + int col; /* nb col */ + Line *line; /* screen */ + Line *alt; /* alternate screen */ + int *dirty; /* dirtyness of lines */ + TCursor c; /* cursor */ + int ocx; /* old cursor col */ + int ocy; /* old cursor row */ + int top; /* top scroll limit */ + int bot; /* bottom scroll limit */ + int mode; /* terminal mode flags */ + int esc; /* escape state flags */ + char trantbl[4]; /* charset table translation */ + int charset; /* current charset */ + int icharset; /* selected charset for sequence */ + int *tabs; + Rune lastc; /* last printed char outside of sequence, 0 if control */ +} Term; + /* CSI Escape sequence structs */ /* ESC '[' [[ [] [;]] []] */ typedef struct { char buf[ESC_BUF_SIZ]; /* raw string */ - int len; /* raw string length */ + size_t len; /* raw string length */ char priv; int arg[ESC_ARG_SIZ]; int narg; /* nb of args */ @@ -104,39 +152,18 @@ typedef struct { /* ESC type [[ [] [;]] ] ESC '\' */ typedef struct { char type; /* ESC type ... */ - char buf[STR_BUF_SIZ]; /* raw string */ - int len; /* raw string length */ + char *buf; /* allocated raw string */ + size_t siz; /* allocation size */ + size_t len; /* raw string length */ char *args[STR_ARG_SIZ]; int narg; /* nb of args */ } STREscape; -typedef struct { - KeySym k; - uint mask; - char *s; - /* three valued logic variables: 0 indifferent, 1 on, -1 off */ - signed char appkey; /* application keypad */ - signed char appcursor; /* application cursor */ - signed char crlf; /* crlf mode */ -} Key; - -/* function definitions used in config.h */ -static void clipcopy(const Arg *); -static void clippaste(const Arg *); -static void numlock(const Arg *); -static void selpaste(const Arg *); -static void printsel(const Arg *); -static void printscreen(const Arg *) ; -static void iso14755(const Arg *); -static void toggleprinter(const Arg *); -static void sendbreak(const Arg *); - -/* config.h for applying patches and the configuration. */ -#include "config.h" - -static void execsh(void); -static void stty(void); +static void execsh(char *, char **); +static char *getcwd_by_pid(pid_t pid); +static void stty(char **); static void sigchld(int); +static void ttywriteraw(const char *, size_t); static void csidump(void); static void csihandle(void); @@ -165,16 +192,16 @@ static void tnewline(int); static void tputtab(int); static void tputc(Rune); static void treset(void); -static void tresize(int, int); static void tscrollup(int, int); static void tscrolldown(int, int); static void tsetattr(int *, int); static void tsetchar(Rune, Glyph *, int, int); +static void tsetdirt(int, int); static void tsetscroll(int, int); static void tswapscreen(void); static void tsetmode(int, int, int *, int); +static int twrite(const char *, int, int); static void tfulldirt(void); -static void techo(Rune); static void tcontrolcode(uchar ); static void tdectest(char ); static void tdefutf8(char); @@ -182,48 +209,58 @@ static int32_t tdefcolor(int *, int *, int); static void tdeftran(char); static void tstrsequence(uchar); +static void drawregion(int, int, int, int); + static void selscroll(int, int); -static void selsnap(int *, int *, int); +static void selnormalize(void); +static size_t utf8decode(const char *, Rune *, size_t); static Rune utf8decodebyte(char, size_t *); static char utf8encodebyte(Rune, size_t); -static char *utf8strchr(char *s, Rune u); static size_t utf8validate(Rune *, size_t); static char *base64dec(const char *); +static char base64dec_getc(const char **); static ssize_t xwrite(int, const char *, size_t); /* Globals */ -TermWindow win; -Term term; -Selection sel; -int cmdfd; -pid_t pid; -char **opt_cmd = NULL; -char *opt_class = NULL; -char *opt_embed = NULL; -char *opt_font = NULL; -char *opt_io = NULL; -char *opt_line = NULL; -char *opt_name = NULL; -char *opt_title = NULL; -int oldbutton = 3; /* button event on startup: 3 = release */ - +static Term term; +static Selection sel; static CSIEscape csiescseq; static STREscape strescseq; static int iofd = 1; +static int cmdfd; +static pid_t pid; static uchar utfbyte[UTF_SIZ + 1] = {0x80, 0, 0xC0, 0xE0, 0xF0}; static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8}; static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000}; static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF}; -/* config.h array lengths */ -size_t colornamelen = LEN(colorname); -size_t mshortcutslen = LEN(mshortcuts); -size_t shortcutslen = LEN(shortcuts); -size_t selmaskslen = LEN(selmasks); +int buffCols; +extern int const buffSize; +int histOp, histMode, histOff, histOffX, insertOff, altToggle, *mark; +Line *buf = NULL; +static TCursor c[3]; +static inline int rows() { return IS_SET(MODE_ALTSCREEN) ? term.row : buffSize;} +static inline int rangeY(int i) { while (i < 0) i += rows(); return i % rows();} + +int +subprocwd(char *path) +{ +#if defined(__linux) + if (snprintf(path, PATH_MAX, "/proc/%d/cwd", pid) < 0) + return -1; + return 0; +#elif defined(__OpenBSD__) + size_t sz = PATH_MAX; + int name[3] = {CTL_KERN, KERN_PROC_CWD, pid}; + if (sysctl(name, 3, path, &sz, 0, 0) == -1) + return -1; + return 0; +#endif +} ssize_t xwrite(int fd, const char *s, size_t len) @@ -245,10 +282,10 @@ xwrite(int fd, const char *s, size_t len) void * xmalloc(size_t len) { - void *p = malloc(len); + void *p; - if (!p) - die("Out of memory\n"); + if (!(p = malloc(len))) + die("malloc: %s\n", strerror(errno)); return p; } @@ -257,7 +294,7 @@ void * xrealloc(void *p, size_t len) { if ((p = realloc(p, len)) == NULL) - die("Out of memory\n"); + die("realloc: %s\n", strerror(errno)); return p; } @@ -266,13 +303,13 @@ char * xstrdup(char *s) { if ((s = strdup(s)) == NULL) - die("Out of memory\n"); + die("strdup: %s\n", strerror(errno)); return s; } size_t -utf8decode(char *c, Rune *u, size_t clen) +utf8decode(const char *c, Rune *u, size_t clen) { size_t i, j, len, type; Rune udecoded; @@ -330,23 +367,6 @@ 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) { @@ -376,8 +396,9 @@ static const char base64_digits[] = { char base64dec_getc(const char **src) { - while (**src && !isprint(**src)) (*src)++; - return *((*src)++); + while (**src && !isprint(**src)) + (*src)++; + return **src ? *((*src)++) : '='; /* emulate padding if string ends */ } char * @@ -395,6 +416,10 @@ base64dec(const char *src) int c = base64_digits[(unsigned char) base64dec_getc(&src)]; int d = base64_digits[(unsigned char) base64dec_getc(&src)]; + /* invalid input. 'a' can be -1, e.g. if src is "\n" (c-str) */ + if (a == -1 || b == -1) + break; + *dst++ = (a << 2) | ((b & 0x30) >> 4); if (c == -1) break; @@ -410,31 +435,9 @@ base64dec(const char *src) void 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; -} - -int -x2col(int x) -{ - x -= borderpx; - x /= win.cw; - - return LIMIT(x, 0, term.col-1); -} - -int -y2row(int y) -{ - y -= borderpx; - y /= win.ch; - - return LIMIT(y, 0, term.row-1); } int @@ -451,157 +454,197 @@ tlinelen(int y) return i; } -void -selnormalize(void) -{ - int i; +void historyOpToggle(int start, int paint) { + if (!histOp == !(histOp + start)) if ((histOp += start) || 1) return; + if (histMode && paint && (!IS_SET(MODE_ALTSCREEN) || altToggle)) draw(); + tcursor(CURSOR_SAVE); + histOp += start; + if (histMode && altToggle) { + tswapscreen(); + memset(term.dirty,0,sizeof(*term.dirty)*term.row); + } + tcursor(CURSOR_LOAD); + *(!IS_SET(MODE_ALTSCREEN)?&term.line:&term.alt)=&buf[histOp?histOff:insertOff]; +} - 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; +void historyModeToggle(int start) { + if (!(histMode = (histOp = !!start))) { + selnormalize(); + tfulldirt(); + } else { + tcursor(CURSOR_SAVE); + histOp = 0; + histOff = insertOff; + } +} + +int historyBufferScroll(int n) { + if (IS_SET(MODE_ALTSCREEN) || !n) return histOp; + int p=abs(n=(n<0) ? max(n,-term.row) : min(n,term.row)), r=term.row-p, + s=sizeof(*term.dirty), *ptr=histOp?&histOff:&insertOff; + if (!histMode || histOp) tfulldirt(); else { + memmove(&term.dirty[-min(n,0)], &term.dirty[max(n,0)], s*r); + memset(&term.dirty[n>0 ? r : 0], 0, s * p); + } + int const prevOffBuf = sel.alt ? 0 : insertOff + term.row; + term.line = &buf[*ptr = (buffSize+*ptr+n) % buffSize]; + // Cut part of selection removed from buffer, and update sel.ne/b. + if (sel.ob.x != -1 && !histOp && n) { + int const offBuf = sel.alt ? 0 : insertOff + term.row, + pb = rangeY(sel.ob.y - prevOffBuf), + pe = rangeY(sel.oe.y - prevOffBuf); + int const b = rangeY(sel.ob.y - offBuf), nln = n < 0, + e = rangeY(sel.oe.y - offBuf), last = offBuf - nln; + if (pb != b && ((pb < b) != nln)) sel.ob.y = last; + if (pe != e && ((pe < e) != nln)) sel.oe.y = last; + if (sel.oe.y == last && sel.ob.y == last) selclear(); + } + selnormalize(); + // Clear the new region exposed by the shift. + if (!histOp) tclearregion(0, n>0?r+1:0, buffCols-1, n>0?term.row:p-1); + return 1; +} + +int historyMove(int x, int y, int ly) { + historyOpToggle(1, 1); + y += ((term.c.x += x) < 0 ?term.c.x-term.col :term.c.x) / term.col;//< x + if ((term.c.x %= term.col) < 0) term.c.x += term.col; + if ((term.c.y += y) >= term.row) ly += term.c.y - term.row + 1; //< y + else if (term.c.y < 0) ly += term.c.y; + term.c.y = MIN(MAX(term.c.y, 0), term.row - 1); + int off=insertOff-histOff, bot=rangeY(off), top=-rangeY(-term.row-off), + pTop = (-ly>-top), pBot = (ly > bot), fin=histMode&&(pTop||pBot); + if (fin && (x||y)) term.c.x = pBot ? term.col-1 : 0; + historyBufferScroll(fin ? (pBot ? bot : top) : ly); + historyOpToggle(-1, 1); + return fin; +} + +#include "normalMode.c" + +void selnormalize(void) { + historyOpToggle(1, 1); + + int const oldb = sel.nb.y, olde = sel.ne.y; + if (sel.ob.x == -1) { + sel.ne.y = sel.nb.y = -1; } else { - sel.nb.x = MIN(sel.ob.x, sel.oe.x); - sel.ne.x = MAX(sel.ob.x, sel.oe.x); + int const offsetBuffer = sel.alt ? 0 : insertOff + term.row; + int const off = sel.alt ? 0 : (histMode ? histOff : insertOff); + int const nby = rangeY(sel.ob.y - off), + ney = rangeY(sel.oe.y - off); + sel.swap = rangeY(sel.ob.y - offsetBuffer) + > rangeY(sel.oe.y - offsetBuffer); + sel.nb.y = sel.swap ? ney : nby; + sel.ne.y = !sel.swap ? ney : nby; + int const cnb = sel.nb.y < term.row, cne = sel.ne.y < term.row; + if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) { + if (cnb) sel.nb.x = (!sel.swap) ? sel.ob.x : sel.oe.x; + if (cne) sel.ne.x = (!sel.swap) ? sel.oe.x : sel.ob.x; + } else { + if (cnb) sel.nb.x = MIN(sel.ob.x, sel.oe.x); + if (cne) sel.ne.x = MAX(sel.ob.x, sel.oe.x); + } } - sel.nb.y = MIN(sel.ob.y, sel.oe.y); - sel.ne.y = MAX(sel.ob.y, sel.oe.y); + int const nBet=sel.nb.y<=sel.ne.y, oBet=oldb<=olde; + for (int i = 0; i < term.row; ++i) { + int const n = nBet ? BETWEEN(i, sel.nb.y, sel.ne.y) + : OUT(i, sel.nb.y, sel.ne.y); + term.dirty[i] |= (sel.type == SEL_RECTANGULAR && n) || + (n != (oBet ? BETWEEN(i,oldb,olde) : OUT(i,oldb,olde))); - selsnap(&sel.nb.x, &sel.nb.y, -1); - selsnap(&sel.ne.x, &sel.ne.y, +1); + } + if (BETWEEN(oldb, 0, term.row - 1)) term.dirty[oldb] = 1; + if (BETWEEN(olde, 0, term.row - 1)) term.dirty[olde] = 1; + if (BETWEEN(sel.nb.y, 0, term.row - 1)) term.dirty[sel.nb.y] = 1; + if (BETWEEN(sel.ne.y, 0, term.row - 1)) term.dirty[sel.ne.y] = 1; - /* expand selection over line breaks */ - if (sel.type == SEL_RECTANGULAR) + historyOpToggle(-1, 1); +} + +void +selstart(int col, int row, int snap) +{ + selclear(); + sel.mode = SEL_EMPTY; + sel.type = SEL_REGULAR; + sel.alt = IS_SET(MODE_ALTSCREEN); + sel.snap = snap; + sel.oe.x = sel.ob.x = col; + sel.oe.y = sel.ob.y = row + !sel.alt * (histMode ? histOff : insertOff); + if (sel.snap != 0) sel.mode = SEL_READY; + selnormalize(); +} + +void +selextend(int col, int row, int type, int done) +{ + if (sel.mode == SEL_IDLE) + return; + if (done && sel.mode == SEL_EMPTY) { + selclear(); return; - i = tlinelen(sel.nb.y); - if (i < sel.nb.x) - sel.nb.x = i; - if (tlinelen(sel.ne.y) <= sel.ne.x) - sel.ne.x = term.col - 1; + } + + sel.oe.x = col; + sel.oe.y = row + (sel.alt ? 0 : (histMode ? histOff : insertOff)); + selnormalize(); + sel.type = type; + sel.mode = done ? SEL_IDLE : SEL_READY; } int selected(int x, int y) { - if (sel.mode == SEL_EMPTY) + if (sel.mode == SEL_EMPTY || sel.ob.x == -1 || + sel.alt != IS_SET(MODE_ALTSCREEN)) return 0; if (sel.type == SEL_RECTANGULAR) return BETWEEN(y, sel.nb.y, sel.ne.y) && BETWEEN(x, sel.nb.x, sel.ne.x); - return BETWEEN(y, sel.nb.y, sel.ne.y) - && (y != sel.nb.y || x >= sel.nb.x) - && (y != sel.ne.y || x <= sel.ne.x); -} - -void -selsnap(int *x, int *y, int direction) -{ - int newx, newy, xt, yt; - int delim, prevdelim; - Glyph *gp, *prevgp; - - switch (sel.snap) { - case SNAP_WORD: - /* - * Snap around if the word wraps around at the end or - * beginning of a line. - */ - prevgp = &term.line[*y][*x]; - prevdelim = ISDELIM(prevgp->u); - for (;;) { - newx = *x + direction; - newy = *y; - 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) - yt = *y, xt = *x; - else - yt = newy, xt = newx; - if (!(term.line[yt][xt].mode & ATTR_WRAP)) - break; - } - - if (newx >= tlinelen(newy)) - break; - - gp = &term.line[newy][newx]; - delim = ISDELIM(gp->u); - if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim - || (delim && gp->u != prevgp->u))) - break; - - *x = newx; - *y = newy; - prevgp = gp; - prevdelim = delim; - } - break; - case SNAP_LINE: - /* - * Snap around if the the previous line or the current one - * has set ATTR_WRAP at its end. Then the whole next or - * 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 - & ATTR_WRAP)) { - break; - } - } - } else if (direction > 0) { - for (; *y < term.row-1; *y += direction) { - if (!(term.line[*y][term.col-1].mode - & ATTR_WRAP)) { - break; - } - } - } - break; - } + return ((sel.nb.y > sel.ne.y) ? OUT(y, sel.nb.y, sel.ne.y) + : BETWEEN(y, sel.nb.y, sel.ne.y)) && + (y != sel.nb.y || x >= sel.nb.x) && + (y != sel.ne.y || x <= sel.ne.x); } char * getsel(void) { char *str, *ptr; - int y, bufsize, lastx, linelen; + int y, yy, bufsize, lastx; Glyph *gp, *last; if (sel.ob.x == -1) return NULL; - bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ; + int const start = sel.swap ? sel.oe.y : sel.ob.y, h = rows(); + int endy = (sel.swap ? sel.ob.y : sel.oe.y); + for (; endy < start; endy += h); + Line * const cbuf = IS_SET(MODE_ALTSCREEN) ? term.line : buf; + bufsize = (term.col+1) * (endy-start+1 ) * UTF_SIZ; + assert(bufsize > 0); ptr = str = xmalloc(bufsize); /* append every set & selected glyph to the selection */ - for (y = sel.nb.y; y <= sel.ne.y; y++) { - if ((linelen = tlinelen(y)) == 0) { - *ptr++ = '\n'; - continue; - } + for (y = start; y <= endy; y++) { + yy = y % h; if (sel.type == SEL_RECTANGULAR) { - gp = &term.line[y][sel.nb.x]; + gp = &cbuf[yy][sel.nb.x]; lastx = sel.ne.x; } else { - gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0]; - lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; + gp = &cbuf[yy][start == y ? sel.nb.x : 0]; + lastx = (endy == y) ? sel.ne.x : term.col-1; } - last = &term.line[y][MIN(lastx, linelen-1)]; - while (last >= gp && last->u == ' ') - --last; + last = &cbuf[yy][lastx]; + if (!(cbuf[yy][term.col - 1].mode & ATTR_WRAP)) + while (last > gp && last->u == ' ') --last; for ( ; gp <= last; ++gp) { - if (gp->mode & ATTR_WDUMMY) - continue; - + if (gp->mode & ATTR_WDUMMY) continue; ptr += utf8encode(gp->u, ptr); } @@ -614,31 +657,14 @@ getsel(void) * st. * FIXME: Fix the computer world. */ - if ((y < sel.ne.y || lastx >= linelen) && !(last->mode & ATTR_WRAP)) + if ((y < endy || lastx >= term.col - 1) && + (!(last->mode & ATTR_WRAP) || sel.type == SEL_RECTANGULAR)) *ptr++ = '\n'; } *ptr = 0; return str; } -void -selpaste(const Arg *dummy) -{ - xselpaste(); -} - -void -clipcopy(const Arg *dummy) -{ - xclipcopy(); -} - -void -clippaste(const Arg *dummy) -{ - xclippaste(); -} - void selclear(void) { @@ -646,7 +672,7 @@ selclear(void) return; sel.mode = SEL_IDLE; sel.ob.x = -1; - tsetdirt(sel.nb.y, sel.ne.y); + selnormalize(); } void @@ -661,29 +687,36 @@ die(const char *errstr, ...) } void -execsh(void) +execsh(char *cmd, char **args) { - char **args, *sh, *prog; + char *sh, *prog, *arg; const struct passwd *pw; errno = 0; if ((pw = getpwuid(getuid())) == NULL) { if (errno) - die("getpwuid:%s\n", strerror(errno)); + die("getpwuid: %s\n", strerror(errno)); else die("who are you?\n"); } if ((sh = getenv("SHELL")) == NULL) - sh = (pw->pw_shell[0]) ? pw->pw_shell : shell; - - if (opt_cmd) - prog = opt_cmd[0]; - else if (utmp) + sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd; + + if (args) { + prog = args[0]; + arg = NULL; + } else if (scroll) { + prog = scroll; + arg = utmp ? utmp : sh; + } else if (utmp) { prog = utmp; - else + arg = NULL; + } else { prog = sh; - args = (opt_cmd) ? opt_cmd : (char *[]) {prog, NULL}; + arg = NULL; + } + DEFAULT(args, ((char *[]) {prog, arg, NULL})); unsetenv("COLUMNS"); unsetenv("LINES"); @@ -712,19 +745,20 @@ sigchld(int a) pid_t p; if ((p = waitpid(pid, &stat, WNOHANG)) < 0) - die("Waiting for pid %hd failed: %s\n", pid, strerror(errno)); + die("waiting for pid %hd failed: %s\n", pid, strerror(errno)); if (pid != p) return; - if (!WIFEXITED(stat) || WEXITSTATUS(stat)) - die("child finished with error '%d'\n", stat); - exit(0); + if (WIFEXITED(stat) && WEXITSTATUS(stat)) + die("child exited with status %d\n", WEXITSTATUS(stat)); + else if (WIFSIGNALED(stat)) + die("child terminated due to signal %d\n", WTERMSIG(stat)); + _exit(0); } - void -stty(void) +stty(char **args) { char cmd[_POSIX_ARG_MAX], **p, *q, *s; size_t n, siz; @@ -734,7 +768,7 @@ stty(void) memcpy(cmd, stty_args, n); q = cmd + n; siz = sizeof(cmd) - n; - for (p = opt_cmd; p && (s = *p); ++p) { + for (p = args; p && (s = *p); ++p) { if ((n = strlen(s)) > siz-1) die("stty parameter length too long\n"); *q++ = ' '; @@ -744,40 +778,40 @@ stty(void) } *q = '\0'; if (system(cmd) != 0) - perror("Couldn't call stty"); + perror("Couldn't call stty"); } -void -ttynew(void) +int +ttynew(char *line, char *cmd, char *out, char **args) { int m, s; - struct winsize w = {term.row, term.col, 0, 0}; - if (opt_io) { + if (out) { term.mode |= MODE_PRINT; - iofd = (!strcmp(opt_io, "-")) ? - 1 : open(opt_io, O_WRONLY | O_CREAT, 0666); + iofd = (!strcmp(out, "-")) ? + 1 : open(out, O_WRONLY | O_CREAT, 0666); if (iofd < 0) { fprintf(stderr, "Error opening %s:%s\n", - opt_io, strerror(errno)); + out, strerror(errno)); } } - if (opt_line) { - if ((cmdfd = open(opt_line, O_RDWR)) < 0) - die("open line failed: %s\n", strerror(errno)); + if (line) { + if ((cmdfd = open(line, O_RDWR)) < 0) + die("open line '%s' failed: %s\n", + line, strerror(errno)); dup2(cmdfd, 0); - stty(); - return; + stty(args); + return cmdfd; } /* seems to work fine on linux, openbsd and freebsd */ - if (openpty(&m, &s, NULL, NULL, &w) < 0) + if (openpty(&m, &s, NULL, NULL, NULL) < 0) die("openpty failed: %s\n", strerror(errno)); switch (pid = fork()) { case -1: - die("fork failed\n"); + die("fork failed: %s\n", strerror(errno)); break; case 0: close(iofd); @@ -789,14 +823,23 @@ ttynew(void) die("ioctl TIOCSCTTY failed: %s\n", strerror(errno)); close(s); close(m); - execsh(); +#ifdef __OpenBSD__ + if (pledge("stdio getpw proc exec", NULL) == -1) + die("pledge\n"); +#endif + execsh(cmd, args); break; default: +#ifdef __OpenBSD__ + if (pledge("stdio rpath tty proc ps exec", NULL) == -1) + die("pledge\n"); +#endif close(s); cmdfd = m; signal(SIGCHLD, sigchld); break; } + return cmdfd; } size_t @@ -804,44 +847,57 @@ ttyread(void) { static char buf[BUFSIZ]; static int buflen = 0; - char *ptr; - int charsize; /* size of utf8 char in bytes */ - Rune unicodep; - int ret; + int ret, written; /* append read bytes to unprocessed bytes */ - if ((ret = read(cmdfd, buf+buflen, LEN(buf)-buflen)) < 0) - die("Couldn't read from shell: %s\n", strerror(errno)); + ret = read(cmdfd, buf+buflen, LEN(buf)-buflen); + + switch (ret) { + case 0: + exit(0); + case -1: + die("couldn't read from shell: %s\n", strerror(errno)); + default: + buflen += ret; + written = twrite(buf, buflen, 0); + buflen -= written; + /* keep any incomplete UTF-8 byte sequence for the next call */ + if (buflen > 0) + memmove(buf, buf + written, buflen); + return ret; + } +} - buflen += ret; - ptr = buf; +void +ttywrite(const char *s, size_t n, int may_echo) +{ + const char *next; - 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; + if (may_echo && IS_SET(MODE_ECHO)) + twrite(s, n, 1); + if (!IS_SET(MODE_CRLF)) { + ttywriteraw(s, n); + return; + } + + /* This is similar to how the kernel handles ONLCR for ttys */ + while (n > 0) { + if (*s == '\r') { + next = s + 1; + ttywriteraw("\r\n", 2); } else { - if (buflen <= 0) - break; - tputc(*ptr++ & 0xFF); - buflen--; + next = memchr(s, '\r', n); + DEFAULT(next, s + n); + ttywriteraw(s, next - s); } + n -= next - s; + s = next; } - /* keep any uncomplete utf8 char for the next call */ - if (buflen > 0) - memmove(buf, ptr, buflen); - - return ret; } void -ttywrite(const char *s, size_t n) +ttywriteraw(const char *s, size_t n) { fd_set wfd, rfd; ssize_t r; @@ -898,44 +954,25 @@ write_error: } void -ttysend(char *s, size_t n) -{ - int len; - char *t, *lim; - Rune u; - - ttywrite(s, n); - 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(int tw, int th) { struct winsize w; w.ws_row = term.row; w.ws_col = term.col; - w.ws_xpixel = win.tw; - w.ws_ypixel = win.th; + w.ws_xpixel = tw; + w.ws_ypixel = th; if (ioctl(cmdfd, TIOCSWINSZ, &w) < 0) fprintf(stderr, "Couldn't set window size: %s\n", strerror(errno)); } +void +ttyhangup() +{ + /* Send SIGHUP to shell */ + kill(pid, SIGHUP); +} + int tattrset(int attr) { @@ -987,8 +1024,7 @@ tfulldirt(void) void tcursor(int mode) { - static TCursor c[2]; - int alt = IS_SET(MODE_ALTSCREEN); + int alt = (histOp) ? 0 : (IS_SET(MODE_ALTSCREEN) + 1); if (mode == CURSOR_SAVE) { c[alt] = term.c; @@ -1031,8 +1067,6 @@ tnew(int col, int row) { term = (Term){ .c = { .attr = { .fg = defaultfg, .bg = defaultbg } } }; tresize(col, row); - term.numlock = 1; - treset(); } @@ -1047,9 +1081,30 @@ tswapscreen(void) tfulldirt(); } +void +newterm(const Arg* a) +{ + switch (fork()) { + case -1: + die("fork failed: %s\n", strerror(errno)); + break; + case 0: + chdir(getcwd_by_pid(pid)); + execlp("st", "./st", NULL); + break; + } +} + +static char *getcwd_by_pid(pid_t pid) { + char buf[32]; + snprintf(buf, sizeof buf, "/proc/%d/cwd", pid); + return realpath(buf, NULL); +} + void tscrolldown(int orig, int n) { + if (historyBufferScroll(-n)) return; int i; Line temp; @@ -1070,6 +1125,7 @@ tscrolldown(int orig, int n) void tscrollup(int orig, int n) { + if (historyBufferScroll(n)) return; int i; Line temp; @@ -1093,27 +1149,17 @@ 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.nb.y, orig, term.bot) != BETWEEN(sel.ne.y, orig, term.bot)) { + selclear(); + } else if (BETWEEN(sel.nb.y, orig, term.bot)) { + sel.ob.y += n; + sel.oe.y += n; + if (sel.ob.y < term.top || sel.ob.y > term.bot || + sel.oe.y < term.top || sel.oe.y > term.bot) { selclear(); - return; - } - if (sel.type == SEL_RECTANGULAR) { - if (sel.ob.y < term.top) - sel.ob.y = term.top; - if (sel.oe.y > term.bot) - sel.oe.y = term.bot; } else { - if (sel.ob.y < term.top) { - sel.ob.y = term.top; - sel.ob.x = 0; - } - if (sel.oe.y > term.bot) { - sel.oe.y = term.bot; - sel.oe.x = term.col; - } + selnormalize(); } - selnormalize(); } } @@ -1231,8 +1277,8 @@ tclearregion(int x1, int y1, int x2, int y2) if (y1 > y2) temp = y1, y1 = y2, y2 = temp; - LIMIT(x1, 0, term.col-1); - LIMIT(x2, 0, term.col-1); + LIMIT(x1, 0, buffCols-1); + LIMIT(x2, 0, buffCols-1); LIMIT(y1, 0, term.row-1); LIMIT(y2, 0, term.row-1); @@ -1240,8 +1286,6 @@ tclearregion(int x1, int y1, int x2, int y2) term.dirty[y] = 1; for (x = x1; x <= x2; x++) { gp = &term.line[y][x]; - if (selected(x, y)) - selclear(); gp->fg = term.c.attr.fg; gp->bg = term.c.attr.bg; gp->mode = 0; @@ -1442,7 +1486,8 @@ tsetattr(int *attr, int l) } else { fprintf(stderr, "erresc(default): gfx attr %d unknown\n", - attr[i]), csidump(); + attr[i]); + csidump(); } break; } @@ -1468,20 +1513,16 @@ tsetscroll(int t, int b) void tsetmode(int priv, int set, int *args, int narg) { - int *lim, mode; - int alt; + int alt, *lim; for (lim = args + narg; args < lim; ++args) { if (priv) { switch (*args) { case 1: /* DECCKM -- Cursor key */ - MODBIT(term.mode, set, MODE_APPCURSOR); + xsetmode(set, MODE_APPCURSOR); break; case 5: /* DECSCNM -- Reverse video */ - mode = term.mode; - MODBIT(term.mode, set, MODE_REVERSE); - if (mode != term.mode) - redraw(); + xsetmode(set, MODE_REVERSE); break; case 6: /* DECOM -- Origin */ MODBIT(term.c.state, set, CURSOR_ORIGIN); @@ -1501,36 +1542,36 @@ tsetmode(int priv, int set, int *args, int narg) case 12: /* att610 -- Start blinking cursor (IGNORED) */ break; case 25: /* DECTCEM -- Text Cursor Enable Mode */ - MODBIT(term.mode, !set, MODE_HIDE); + xsetmode(!set, MODE_HIDE); break; case 9: /* X10 mouse compatibility mode */ xsetpointermotion(0); - MODBIT(term.mode, 0, MODE_MOUSE); - MODBIT(term.mode, set, MODE_MOUSEX10); + xsetmode(0, MODE_MOUSE); + xsetmode(set, MODE_MOUSEX10); break; case 1000: /* 1000: report button press */ xsetpointermotion(0); - MODBIT(term.mode, 0, MODE_MOUSE); - MODBIT(term.mode, set, MODE_MOUSEBTN); + xsetmode(0, MODE_MOUSE); + xsetmode(set, MODE_MOUSEBTN); break; case 1002: /* 1002: report motion on button press */ xsetpointermotion(0); - MODBIT(term.mode, 0, MODE_MOUSE); - MODBIT(term.mode, set, MODE_MOUSEMOTION); + xsetmode(0, MODE_MOUSE); + xsetmode(set, MODE_MOUSEMOTION); break; case 1003: /* 1003: enable all mouse motions */ xsetpointermotion(set); - MODBIT(term.mode, 0, MODE_MOUSE); - MODBIT(term.mode, set, MODE_MOUSEMANY); + xsetmode(0, MODE_MOUSE); + xsetmode(set, MODE_MOUSEMANY); break; case 1004: /* 1004: send focus events to tty */ - MODBIT(term.mode, set, MODE_FOCUS); + xsetmode(set, MODE_FOCUS); break; case 1006: /* 1006: extended reporting mode */ - MODBIT(term.mode, set, MODE_MOUSESGR); + xsetmode(set, MODE_MOUSESGR); break; case 1034: - MODBIT(term.mode, set, MODE_8BIT); + xsetmode(set, MODE_8BIT); break; case 1049: /* swap screen & set/restore cursor as xterm */ if (!allowaltscreen) @@ -1555,7 +1596,7 @@ tsetmode(int priv, int set, int *args, int narg) tcursor((set) ? CURSOR_SAVE : CURSOR_LOAD); break; case 2004: /* 2004: bracketed paste mode */ - MODBIT(term.mode, set, MODE_BRCKTPASTE); + xsetmode(set, MODE_BRCKTPASTE); break; /* Not implemented mouse modes. See comments there. */ case 1001: /* mouse highlight mode; can hang the @@ -1566,6 +1607,7 @@ tsetmode(int priv, int set, int *args, int narg) case 1015: /* urxvt mangled mouse mode; incompatible and can be mistaken for other control codes. */ + break; default: fprintf(stderr, "erresc: unknown private set/reset mode %d\n", @@ -1576,8 +1618,8 @@ tsetmode(int priv, int set, int *args, int narg) switch (*args) { case 0: /* Error (IGNORED) */ break; - case 2: /* KAM -- keyboard action */ - MODBIT(term.mode, set, MODE_KBDLOCK); + case 2: + xsetmode(set, MODE_KBDLOCK); break; case 4: /* IRM -- Insertion-replacement */ MODBIT(term.mode, set, MODE_INSERT); @@ -1645,7 +1687,13 @@ csihandle(void) break; case 'c': /* DA -- Device Attributes */ if (csiescseq.arg[0] == 0) - ttywrite(vtiden, sizeof(vtiden) - 1); + ttywrite(vtiden, strlen(vtiden), 0); + break; + case 'b': /* REP -- if last char is printable print it more times */ + DEFAULT(csiescseq.arg[0], 1); + if (term.lastc) + while (csiescseq.arg[0]-- > 0) + tputc(term.lastc); break; case 'C': /* CUF -- Cursor Forward */ case 'a': /* HPR -- Cursor Forward */ @@ -1692,7 +1740,6 @@ csihandle(void) tputtab(csiescseq.arg[0]); break; case 'J': /* ED -- Clear screen */ - selclear(); switch (csiescseq.arg[0]) { case 0: /* below */ tclearregion(term.c.x, term.c.y, term.col-1, term.c.y); @@ -1771,9 +1818,9 @@ csihandle(void) break; case 'n': /* DSR – Device Status Report (cursor position) */ if (csiescseq.arg[0] == 6) { - len = snprintf(buf, sizeof(buf),"\033[%i;%iR", + len = snprintf(buf, sizeof(buf), "\033[%i;%iR", term.c.y+1, term.c.x+1); - ttywrite(buf, len); + ttywrite(buf, len, 0); } break; case 'r': /* DECSTBM -- Set Scrolling Region */ @@ -1795,11 +1842,8 @@ csihandle(void) case ' ': switch (csiescseq.mode[1]) { case 'q': /* DECSCUSR -- Set Cursor Style */ - DEFAULT(csiescseq.arg[0], 1); - if (!BETWEEN(csiescseq.arg[0], 0, 6)) { + if (xsetcursor(csiescseq.arg[0])) goto unknown; - } - win.cursor = csiescseq.arg[0]; break; default: goto unknown; @@ -1811,7 +1855,7 @@ csihandle(void) void csidump(void) { - int i; + size_t i; uint c; fprintf(stderr, "ESC["); @@ -1841,7 +1885,7 @@ csireset(void) void strhandle(void) { - char *p = NULL; + char *p = NULL, *dec; int j, narg, par; term.esc &= ~(ESC_STR_END|ESC_STR); @@ -1858,13 +1902,11 @@ strhandle(void) xsettitle(strescseq.args[1]); return; case 52: - if (narg > 2) { - char *dec; - + if (narg > 2 && allowwindowops) { dec = base64dec(strescseq.args[2]); if (dec) { - xsetsel(dec, CurrentTime); - clipcopy(NULL); + xsetsel(dec); + xclipcopy(); } else { fprintf(stderr, "erresc: invalid base64\n"); } @@ -1878,7 +1920,10 @@ strhandle(void) case 104: /* color reset, here p = NULL */ j = (narg > 1) ? atoi(strescseq.args[1]) : -1; if (xsetcolorname(j, p)) { - fprintf(stderr, "erresc: invalid color %s\n", p); + if (par == 104 && narg <= 1) + return; /* color reset without parameter */ + fprintf(stderr, "erresc: invalid color j=%d, p=%s\n", + j, p ? p : "(null)"); } else { /* * TODO if defaultbg color is changed, borders @@ -1893,7 +1938,6 @@ 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; @@ -1928,7 +1972,7 @@ strparse(void) void strdump(void) { - int i; + size_t i; uint c; fprintf(stderr, "ESC%c", strescseq.type); @@ -1955,7 +1999,10 @@ strdump(void) void strreset(void) { - memset(&strescseq, 0, sizeof(strescseq)); + strescseq = (STREscape){ + .buf = xrealloc(strescseq.buf, STR_BUF_SIZ), + .siz = STR_BUF_SIZ, + }; } void @@ -1969,35 +2016,12 @@ 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)); + perror("Error writing to output file"); close(iofd); iofd = -1; } } -void -iso14755(const Arg *arg) -{ - FILE *p; - char *us, *e, codepoint[9], uc[UTF_SIZ]; - unsigned long utf32; - - if (!(p = popen(ISO14755CMD, "r"))) - return; - - us = fgets(codepoint, sizeof(codepoint), p); - pclose(p); - - if (!us || *us == '\0' || *us == '-' || strlen(us) > 7) - return; - if ((utf32 = strtoul(us, &e, 16)) == ULONG_MAX || - (*e != '\n' && *e != '\0')) - return; - - ttysend(uc, utf8encode(utf32, uc)); -} - void toggleprinter(const Arg *arg) { @@ -2036,7 +2060,7 @@ tdumpline(int n) bp = &term.line[n][0]; end = &bp[MIN(tlinelen(n), term.col) - 1]; if (bp != end || bp->u != ' ') { - for ( ;bp <= end; ++bp) + for ( ; bp <= end; ++bp) tprinter(buf, utf8encode(bp->u, buf)); } tprinter("\n", 1); @@ -2068,22 +2092,6 @@ tputtab(int n) term.c.x = LIMIT(x, 0, term.col-1); } -void -techo(Rune u) -{ - if (ISCONTROL(u)) { /* control code */ - if (u & 0x80) { - u &= 0x7f; - tputc('^'); - tputc('['); - } else if (u != '\n' && u != '\r' && u != '\t') { - u ^= 0x40; - tputc('^'); - } - } - tputc(u); -} - void tdefutf8(char ascii) { @@ -2123,12 +2131,9 @@ tdectest(char c) void 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 = '_'; @@ -2140,6 +2145,7 @@ tstrsequence(uchar c) c = ']'; break; } + strreset(); strescseq.type = c; term.esc |= ESC_STR; } @@ -2182,6 +2188,7 @@ tcontrolcode(uchar ascii) return; case '\032': /* SUB */ tsetchar('?', &term.c.attr, term.c.x, term.c.y); + /* FALLTHROUGH */ case '\030': /* CAN */ csireset(); break; @@ -2224,7 +2231,7 @@ tcontrolcode(uchar ascii) case 0x99: /* TODO: SGCI */ break; case 0x9a: /* DECID -- Identify Terminal */ - ttywrite(vtiden, sizeof(vtiden) - 1); + ttywrite(vtiden, strlen(vtiden), 0); break; case 0x9b: /* TODO: CSI */ case 0x9c: /* TODO: ST */ @@ -2296,18 +2303,18 @@ eschandle(uchar ascii) } break; case 'Z': /* DECID -- Identify Terminal */ - ttywrite(vtiden, sizeof(vtiden) - 1); + ttywrite(vtiden, strlen(vtiden), 0); break; - case 'c': /* RIS -- Reset to inital state */ + case 'c': /* RIS -- Reset to initial state */ treset(); resettitle(); xloadcols(); break; case '=': /* DECPAM -- Application keypad */ - term.mode |= MODE_APPKEYPAD; + xsetmode(1, MODE_APPKEYPAD); break; case '>': /* DECPNM -- Normal keypad */ - term.mode &= ~MODE_APPKEYPAD; + xsetmode(0, MODE_APPKEYPAD); break; case '7': /* DECSC -- Save Cursor */ tcursor(CURSOR_SAVE); @@ -2336,15 +2343,13 @@ tputc(Rune u) Glyph *gp; control = ISCONTROL(u); - if (!IS_SET(MODE_UTF8) && !IS_SET(MODE_SIXEL)) { + if (u < 127 || !IS_SET(MODE_UTF8)) { 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 */ + if (!control && (width = wcwidth(u)) == -1) width = 1; - } } if (IS_SET(MODE_PRINT)) @@ -2359,25 +2364,12 @@ tputc(Rune u) if (term.esc & ESC_STR) { if (u == '\a' || u == 030 || u == 032 || u == 033 || ISCONTROLC1(u)) { - term.esc &= ~(ESC_START|ESC_STR|ESC_DCS); - if (IS_SET(MODE_SIXEL)) { - /* TODO: render sixel */; - term.mode &= ~MODE_SIXEL; - return; - } + term.esc &= ~(ESC_START|ESC_STR); term.esc |= ESC_STR_END; goto check_control_code; } - - if (IS_SET(MODE_SIXEL)) { - /* TODO: implement sixel mode */ - return; - } - if (term.esc&ESC_DCS && strescseq.len == 0 && u == 'q') - term.mode |= MODE_SIXEL; - - if (strescseq.len+len >= sizeof(strescseq.buf)-1) { + if (strescseq.len+len >= strescseq.siz) { /* * Here is a bug in terminals. If the user never sends * some code to stop the str or esc command, then st @@ -2391,7 +2383,10 @@ tputc(Rune u) * term.esc = 0; * strhandle(); */ - return; + if (strescseq.siz > (SIZE_MAX - UTF_SIZ) / 2) + return; + strescseq.siz *= 2; + strescseq.buf = xrealloc(strescseq.buf, strescseq.siz); } memmove(&strescseq.buf[strescseq.len], c, len); @@ -2410,6 +2405,8 @@ check_control_code: /* * control codes are not shown ever */ + if (!term.esc) + term.lastc = 0; return; } else if (term.esc & ESC_START) { if (term.esc & ESC_CSI) { @@ -2440,8 +2437,8 @@ check_control_code: */ return; } - if (sel.ob.x != -1 && BETWEEN(term.c.y, sel.ob.y, sel.oe.y)) - selclear(); + //if (selected(term.c.x, term.c.y)) + // selclear(); gp = &term.line[term.c.y][term.c.x]; if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) { @@ -2459,6 +2456,7 @@ check_control_code: } tsetchar(u, &term.c.attr, term.c.x, term.c.y); + term.lastc = u; if (width == 2) { gp->mode |= ATTR_WIDE; @@ -2474,12 +2472,46 @@ check_control_code: } } +int +twrite(const char *buf, int buflen, int show_ctrl) +{ + int charsize; + Rune u; + int n; + + for (n = 0; n < buflen; n += charsize) { + if (IS_SET(MODE_UTF8)) { + /* process a complete utf8 char */ + charsize = utf8decode(buf + n, &u, buflen - n); + if (charsize == 0) + break; + } else { + u = buf[n] & 0xFF; + charsize = 1; + } + if (show_ctrl && ISCONTROL(u)) { + if (u & 0x80) { + u &= 0x7f; + tputc('^'); + tputc('['); + } else if (u != '\n' && u != '\r' && u != '\t') { + u ^= 0x40; + tputc('^'); + } + } + tputc(u); + } + return n; +} + void tresize(int col, int row) { int i; - int minrow = MIN(row, term.row); - int mincol = MIN(col, term.col); + int const colSet = col, alt = IS_SET(MODE_ALTSCREEN), ini = buf == NULL; + col = MAX(col, buffCols); + row = MIN(row, buffSize); + int const minrow = MIN(row, term.row), mincol = MIN(col, buffCols); int *bp; TCursor c; @@ -2488,6 +2520,7 @@ tresize(int col, int row) "tresize: error resizing to %dx%d\n", col, row); return; } + if (alt) tswapscreen(); /* * slide screen to keep cursor where we expect it - @@ -2495,48 +2528,54 @@ tresize(int col, int row) * memmove because we're freeing the earlier lines */ for (i = 0; i <= term.c.y - row; i++) { - free(term.line[i]); free(term.alt[i]); } /* ensure that both src and dst are not NULL */ if (i > 0) { - 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++) { - free(term.line[i]); free(term.alt[i]); } /* resize to new height */ - term.line = xrealloc(term.line, row * sizeof(Line)); + buf = xrealloc(buf, (buffSize + row) * sizeof(Line)); term.alt = xrealloc(term.alt, row * sizeof(Line)); term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); + mark = xrealloc(mark, col * row * sizeof(*mark)); 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++) { - 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++) { - term.line[i] = xmalloc(col * sizeof(Glyph)); term.alt[i] = xmalloc(col * sizeof(Glyph)); } - if (col > term.col) { - bp = term.tabs + term.col; + if (col > buffCols) { + bp = term.tabs + buffCols; - memset(bp, 0, sizeof(*term.tabs) * (col - term.col)); + memset(bp, 0, sizeof(*term.tabs) * (col - buffCols)); while (--bp > term.tabs && !*bp) /* nothing */ ; for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces) *bp = 1; } + Glyph g=(Glyph){.bg=term.c.attr.bg, .fg=term.c.attr.fg, .u=' ', .mode=0}; + for (i = 0; i < buffSize; ++i) { + buf[i] = xrealloc(ini ? NULL : buf[i], col*sizeof(Glyph)); + for (int j = ini ? 0 : buffCols; j < col; ++j) buf[i][j] = g; + } + for (i = 0; i < row; ++i) buf[buffSize + i] = buf[i]; + term.line = &buf[*(histOp?&histOff:&insertOff) +=MAX(term.c.y-row+1,0)]; + memset(mark, 0, col * row * sizeof(*mark)); /* update terminal size */ - term.col = col; + term.col = colSet; + buffCols = col; term.row = row; + if (alt) tswapscreen(); /* reset scrolling region */ tsetscroll(0, row-1); /* make use of the LIMIT in tmoveto */ @@ -2559,81 +2598,56 @@ tresize(int col, int row) void resettitle(void) { - xsettitle(opt_title ? opt_title : "st"); + xsettitle(NULL); } void -redraw(void) +drawregion(int x1, int y1, int x2, int y2) { - tfulldirt(); - draw(); -} + if (altToggle && histMode && !histOp) + memset(term.dirty, 0, sizeof(*term.dirty) * term.row); + int const o = !IS_SET(MODE_ALTSCREEN) && histMode && !histOp, h =rows(); + int y; -int -match(uint mask, uint state) -{ - return mask == XK_ANY_MOD || mask == (state & ~ignoremod); + for (y = y1; y < y2; y++) { + int const oy = o ? (y + insertOff - histOff + h) % h : y; + if (!BETWEEN(oy, 0, term.row-1) || !term.dirty[y]) continue; + xdrawline(term.line[y], x1, oy, x2); + } + memset(&term.dirty[y1], 0, sizeof(*term.dirty) * (y2 - y1)); } void -numlock(const Arg *dummy) -{ - term.numlock ^= 1; -} - -char* -kmap(KeySym k, uint state) +draw(void) { - Key *kp; - int i; + int cx = term.c.x, ocx = term.ocx, ocy = term.ocy; - /* Check for mapped keys out of X11 function keys. */ - for (i = 0; i < LEN(mappedkeys); i++) { - if (mappedkeys[i] == k) - break; - } - if (i == LEN(mappedkeys)) { - if ((k & 0xFFFF) < 0xFD00) - return NULL; - } - - for (kp = key; kp < key + LEN(key); kp++) { - if (kp->k != k) - continue; - - if (!match(kp->mask, state)) - continue; - - if (IS_SET(MODE_APPKEYPAD) ? kp->appkey < 0 : kp->appkey > 0) - continue; - if (term.numlock && kp->appkey == 2) - continue; - - if (IS_SET(MODE_APPCURSOR) ? kp->appcursor < 0 : kp->appcursor > 0) - continue; - - if (IS_SET(MODE_CRLF) ? kp->crlf < 0 : kp->crlf > 0) - continue; + if (!xstartdraw()) + return; - return kp->s; - } + /* adjust cursor position */ + LIMIT(term.ocx, 0, term.col-1); + LIMIT(term.ocy, 0, term.row-1); + if (term.line[term.ocy][term.ocx].mode & ATTR_WDUMMY) + term.ocx--; + if (term.line[term.c.y][cx].mode & ATTR_WDUMMY) + cx--; - return NULL; + if (histMode) historyPreDraw(); + drawregion(0, 0, term.col, term.row); + if (!histMode) + xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], + term.ocx, term.ocy, term.line[term.ocy][term.ocx]); + term.ocx = cx; + term.ocy = term.c.y; + xfinishdraw(); + if (ocx != term.ocx || ocy != term.ocy) + xximspot(term.ocx, term.ocy); } void -cresize(int width, int height) +redraw(void) { - int col, row; - - if (width != 0) - win.w = width; - if (height != 0) - win.h = height; - - col = (win.w - 2 * borderpx) / win.cw; - row = (win.h - 2 * borderpx) / win.ch; - - tresize(col, row); - xresize(col, row); + tfulldirt(); + draw(); }