From b02aa18ffb14ebeb1cca7a9ec513cf7d6825939f Mon Sep 17 00:00:00 2001 From: Francisco Fuentes Date: Wed, 23 Dec 2020 21:18:28 -0300 Subject: scrollback --- LEEME | 2 +- config.def.h | 3 + config.def.h.orig | 19 ++- config.def.h.rej | 5 +- config.h | 3 + patches/st-scrollback-0.8.4.diff | 351 +++++++++++++++++++++++++++++++++++++++ st | Bin 106304 -> 102176 bytes st.c | 125 +++++++++++--- st.c.orig | 124 ++++++++++++++ st.h | 2 + st.o | Bin 77336 -> 79752 bytes x.o | Bin 74816 -> 74768 bytes 12 files changed, 598 insertions(+), 36 deletions(-) create mode 100644 patches/st-scrollback-0.8.4.diff diff --git a/LEEME b/LEEME index 60d4d70..f819e29 100644 --- a/LEEME +++ b/LEEME @@ -7,7 +7,7 @@ Apliqué hasta el momento: - Copyurl (para seleccionar cualquier URL en pantalla con Alt+L) - w3m (para que muestre imágenes si es que tienes alguna aplicación que muestre fotos dentro de la terminal) - blinking cursor - +- scrollback (permite ir hacia atrás en la consola con Mayús+Repag y volver con Mayús+AvPag) El código fuente ya está modificado. Sólo hay que hacer "sudo make clean install" Los parches están en /patches pero sólo como referencia futura. diff --git a/config.def.h b/config.def.h index 19a9d64..bfa7795 100644 --- a/config.def.h +++ b/config.def.h @@ -220,6 +220,9 @@ static Shortcut shortcuts[] = { { TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, { MODKEY, XK_l, copyurl, {.i = 0} }, { XK_ANY_MOD, XK_F6, swapcolors, {.i = 0} }, + { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} }, + { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} }, + }; /* diff --git a/config.def.h.orig b/config.def.h.orig index a432657..19a9d64 100644 --- a/config.def.h.orig +++ b/config.def.h.orig @@ -145,13 +145,20 @@ static unsigned int defaultcs = 14; static unsigned int defaultrcs = 15; /* - * Default shape of cursor - * 2: Block ("█") - * 4: Underline ("_") - * 6: Bar ("|") - * 7: Snowman ("☃") + * https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h4-Functions-using-CSI-_-ordered-by-the-final-character-lparen-s-rparen:CSI-Ps-SP-q.1D81 + * Default style of cursor + * 0: Blinking block + * 1: Blinking block (default) + * 2: Steady block ("█") + * 3: Blinking underline + * 4: Steady underline ("_") + * 5: Blinking bar + * 6: Steady bar ("|") + * 7: Blinking st cursor + * 8: Steady st cursor */ -static unsigned int cursorshape = 2; +static unsigned int cursorstyle = 1; +static Rune stcursor = 0x2603; /* snowman (U+2603) */ /* * Default columns and rows numbers diff --git a/config.def.h.rej b/config.def.h.rej index d0981e2..842c96f 100644 --- a/config.def.h.rej +++ b/config.def.h.rej @@ -1,10 +1,11 @@ --- config.def.h +++ config.def.h -@@ -178,6 +178,7 @@ static Shortcut shortcuts[] = { +@@ -199,6 +199,8 @@ static Shortcut shortcuts[] = { { TERMMOD, XK_Y, selpaste, {.i = 0} }, { ShiftMask, XK_Insert, selpaste, {.i = 0} }, { TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, -+ { MODKEY, XK_l, copyurl, {.i = 0} }, ++ { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} }, ++ { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} }, }; /* diff --git a/config.h b/config.h index 19a9d64..bfa7795 100644 --- a/config.h +++ b/config.h @@ -220,6 +220,9 @@ static Shortcut shortcuts[] = { { TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, { MODKEY, XK_l, copyurl, {.i = 0} }, { XK_ANY_MOD, XK_F6, swapcolors, {.i = 0} }, + { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} }, + { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} }, + }; /* diff --git a/patches/st-scrollback-0.8.4.diff b/patches/st-scrollback-0.8.4.diff new file mode 100644 index 0000000..88e0c79 --- /dev/null +++ b/patches/st-scrollback-0.8.4.diff @@ -0,0 +1,351 @@ +diff --git a/config.def.h b/config.def.h +index 6f05dce..93cbcc0 100644 +--- a/config.def.h ++++ b/config.def.h +@@ -199,6 +199,8 @@ static Shortcut shortcuts[] = { + { TERMMOD, XK_Y, selpaste, {.i = 0} }, + { ShiftMask, XK_Insert, selpaste, {.i = 0} }, + { TERMMOD, XK_Num_Lock, numlock, {.i = 0} }, ++ { ShiftMask, XK_Page_Up, kscrollup, {.i = -1} }, ++ { ShiftMask, XK_Page_Down, kscrolldown, {.i = -1} }, + }; + + /* +diff --git a/st.c b/st.c +index 76b7e0d..edec064 100644 +--- a/st.c ++++ b/st.c +@@ -35,6 +35,7 @@ + #define ESC_ARG_SIZ 16 + #define STR_BUF_SIZ ESC_BUF_SIZ + #define STR_ARG_SIZ ESC_ARG_SIZ ++#define HISTSIZE 2000 + + /* macros */ + #define IS_SET(flag) ((term.mode & (flag)) != 0) +@@ -42,6 +43,9 @@ + #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) + #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) + #define ISDELIM(u) (u && wcschr(worddelimiters, u)) ++#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \ ++ term.scr + HISTSIZE + 1) % HISTSIZE] : \ ++ term.line[(y) - term.scr]) + + enum term_mode { + MODE_WRAP = 1 << 0, +@@ -115,6 +119,9 @@ typedef struct { + int col; /* nb col */ + Line *line; /* screen */ + Line *alt; /* alternate screen */ ++ Line hist[HISTSIZE]; /* history buffer */ ++ int histi; /* history index */ ++ int scr; /* scroll back */ + int *dirty; /* dirtyness of lines */ + TCursor c; /* cursor */ + int ocx; /* old cursor col */ +@@ -184,8 +191,8 @@ static void tnewline(int); + static void tputtab(int); + static void tputc(Rune); + static void treset(void); +-static void tscrollup(int, int); +-static void tscrolldown(int, int); ++static void tscrollup(int, int, int); ++static void tscrolldown(int, int, int); + static void tsetattr(int *, int); + static void tsetchar(Rune, Glyph *, int, int); + static void tsetdirt(int, int); +@@ -414,10 +421,10 @@ tlinelen(int y) + { + int i = term.col; + +- if (term.line[y][i - 1].mode & ATTR_WRAP) ++ if (TLINE(y)[i - 1].mode & ATTR_WRAP) + return i; + +- while (i > 0 && term.line[y][i - 1].u == ' ') ++ while (i > 0 && TLINE(y)[i - 1].u == ' ') + --i; + + return i; +@@ -526,7 +533,7 @@ selsnap(int *x, int *y, int direction) + * Snap around if the word wraps around at the end or + * beginning of a line. + */ +- prevgp = &term.line[*y][*x]; ++ prevgp = &TLINE(*y)[*x]; + prevdelim = ISDELIM(prevgp->u); + for (;;) { + newx = *x + direction; +@@ -541,14 +548,14 @@ selsnap(int *x, int *y, int direction) + yt = *y, xt = *x; + else + yt = newy, xt = newx; +- if (!(term.line[yt][xt].mode & ATTR_WRAP)) ++ if (!(TLINE(yt)[xt].mode & ATTR_WRAP)) + break; + } + + if (newx >= tlinelen(newy)) + break; + +- gp = &term.line[newy][newx]; ++ gp = &TLINE(newy)[newx]; + delim = ISDELIM(gp->u); + if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim + || (delim && gp->u != prevgp->u))) +@@ -569,14 +576,14 @@ selsnap(int *x, int *y, int direction) + *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 (!(TLINE(*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 ++ if (!(TLINE(*y)[term.col-1].mode + & ATTR_WRAP)) { + break; + } +@@ -607,13 +614,13 @@ getsel(void) + } + + if (sel.type == SEL_RECTANGULAR) { +- gp = &term.line[y][sel.nb.x]; ++ gp = &TLINE(y)[sel.nb.x]; + lastx = sel.ne.x; + } else { +- gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0]; ++ gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0]; + lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; + } +- last = &term.line[y][MIN(lastx, linelen-1)]; ++ last = &TLINE(y)[MIN(lastx, linelen-1)]; + while (last >= gp && last->u == ' ') + --last; + +@@ -848,6 +855,9 @@ void + ttywrite(const char *s, size_t n, int may_echo) + { + const char *next; ++ Arg arg = (Arg) { .i = term.scr }; ++ ++ kscrolldown(&arg); + + if (may_echo && IS_SET(MODE_ECHO)) + twrite(s, n, 1); +@@ -1059,13 +1069,53 @@ tswapscreen(void) + } + + void +-tscrolldown(int orig, int n) ++kscrolldown(const Arg* a) ++{ ++ int n = a->i; ++ ++ if (n < 0) ++ n = term.row + n; ++ ++ if (n > term.scr) ++ n = term.scr; ++ ++ if (term.scr > 0) { ++ term.scr -= n; ++ selscroll(0, -n); ++ tfulldirt(); ++ } ++} ++ ++void ++kscrollup(const Arg* a) ++{ ++ int n = a->i; ++ ++ if (n < 0) ++ n = term.row + n; ++ ++ if (term.scr <= HISTSIZE-n) { ++ term.scr += n; ++ selscroll(0, n); ++ tfulldirt(); ++ } ++} ++ ++void ++tscrolldown(int orig, int n, int copyhist) + { + int i; + Line temp; + + LIMIT(n, 0, term.bot-orig+1); + ++ if (copyhist) { ++ term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE; ++ temp = term.hist[term.histi]; ++ term.hist[term.histi] = term.line[term.bot]; ++ term.line[term.bot] = temp; ++ } ++ + tsetdirt(orig, term.bot-n); + tclearregion(0, term.bot-n+1, term.col-1, term.bot); + +@@ -1075,17 +1125,28 @@ tscrolldown(int orig, int n) + term.line[i-n] = temp; + } + +- selscroll(orig, n); ++ if (term.scr == 0) ++ selscroll(orig, n); + } + + void +-tscrollup(int orig, int n) ++tscrollup(int orig, int n, int copyhist) + { + int i; + Line temp; + + LIMIT(n, 0, term.bot-orig+1); + ++ if (copyhist) { ++ term.histi = (term.histi + 1) % HISTSIZE; ++ temp = term.hist[term.histi]; ++ term.hist[term.histi] = term.line[orig]; ++ term.line[orig] = temp; ++ } ++ ++ if (term.scr > 0 && term.scr < HISTSIZE) ++ term.scr = MIN(term.scr + n, HISTSIZE-1); ++ + tclearregion(0, orig, term.col-1, orig+n-1); + tsetdirt(orig+n, term.bot); + +@@ -1095,7 +1156,8 @@ tscrollup(int orig, int n) + term.line[i+n] = temp; + } + +- selscroll(orig, -n); ++ if (term.scr == 0) ++ selscroll(orig, -n); + } + + void +@@ -1124,7 +1186,7 @@ tnewline(int first_col) + int y = term.c.y; + + if (y == term.bot) { +- tscrollup(term.top, 1); ++ tscrollup(term.top, 1, 1); + } else { + y++; + } +@@ -1289,14 +1351,14 @@ void + tinsertblankline(int n) + { + if (BETWEEN(term.c.y, term.top, term.bot)) +- tscrolldown(term.c.y, n); ++ tscrolldown(term.c.y, n, 0); + } + + void + tdeleteline(int n) + { + if (BETWEEN(term.c.y, term.top, term.bot)) +- tscrollup(term.c.y, n); ++ tscrollup(term.c.y, n, 0); + } + + int32_t +@@ -1733,11 +1795,11 @@ csihandle(void) + break; + case 'S': /* SU -- Scroll line up */ + DEFAULT(csiescseq.arg[0], 1); +- tscrollup(term.top, csiescseq.arg[0]); ++ tscrollup(term.top, csiescseq.arg[0], 0); + break; + case 'T': /* SD -- Scroll line down */ + DEFAULT(csiescseq.arg[0], 1); +- tscrolldown(term.top, csiescseq.arg[0]); ++ tscrolldown(term.top, csiescseq.arg[0], 0); + break; + case 'L': /* IL -- Insert blank lines */ + DEFAULT(csiescseq.arg[0], 1); +@@ -2241,7 +2303,7 @@ eschandle(uchar ascii) + return 0; + case 'D': /* IND -- Linefeed */ + if (term.c.y == term.bot) { +- tscrollup(term.top, 1); ++ tscrollup(term.top, 1, 1); + } else { + tmoveto(term.c.x, term.c.y+1); + } +@@ -2254,7 +2316,7 @@ eschandle(uchar ascii) + break; + case 'M': /* RI -- Reverse index */ + if (term.c.y == term.top) { +- tscrolldown(term.top, 1); ++ tscrolldown(term.top, 1, 1); + } else { + tmoveto(term.c.x, term.c.y-1); + } +@@ -2464,7 +2526,7 @@ twrite(const char *buf, int buflen, int show_ctrl) + void + tresize(int col, int row) + { +- int i; ++ int i, j; + int minrow = MIN(row, term.row); + int mincol = MIN(col, term.col); + int *bp; +@@ -2501,6 +2563,14 @@ tresize(int col, int row) + term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); + term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); + ++ for (i = 0; i < HISTSIZE; i++) { ++ term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph)); ++ for (j = mincol; j < col; j++) { ++ term.hist[i][j] = term.c.attr; ++ term.hist[i][j].u = ' '; ++ } ++ } ++ + /* 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)); +@@ -2559,7 +2629,7 @@ drawregion(int x1, int y1, int x2, int y2) + continue; + + term.dirty[y] = 0; +- xdrawline(term.line[y], x1, y, x2); ++ xdrawline(TLINE(y), x1, y, x2); + } + } + +@@ -2580,8 +2650,9 @@ draw(void) + cx--; + + drawregion(0, 0, term.col, term.row); +- xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], +- term.ocx, term.ocy, term.line[term.ocy][term.ocx]); ++ if (term.scr == 0) ++ 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(); +diff --git a/st.h b/st.h +index 3d351b6..f44e1d3 100644 +--- a/st.h ++++ b/st.h +@@ -81,6 +81,8 @@ void die(const char *, ...); + void redraw(void); + void draw(void); + ++void kscrolldown(const Arg *); ++void kscrollup(const Arg *); + void printscreen(const Arg *); + void printsel(const Arg *); + void sendbreak(const Arg *); diff --git a/st b/st index 4cf70f5..9358d98 100755 Binary files a/st and b/st differ diff --git a/st.c b/st.c index 8051aa1..6f6168f 100644 --- a/st.c +++ b/st.c @@ -35,6 +35,7 @@ #define ESC_ARG_SIZ 16 #define STR_BUF_SIZ ESC_BUF_SIZ #define STR_ARG_SIZ ESC_ARG_SIZ +#define HISTSIZE 2000 /* macros */ #define IS_SET(flag) ((term.mode & (flag)) != 0) @@ -42,6 +43,9 @@ #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) #define ISDELIM(u) (u && wcschr(worddelimiters, u)) +#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - \ + term.scr + HISTSIZE + 1) % HISTSIZE] : \ + term.line[(y) - term.scr]) enum term_mode { MODE_WRAP = 1 << 0, @@ -115,6 +119,9 @@ typedef struct { int col; /* nb col */ Line *line; /* screen */ Line *alt; /* alternate screen */ + Line hist[HISTSIZE]; /* history buffer */ + int histi; /* history index */ + int scr; /* scroll back */ int *dirty; /* dirtyness of lines */ TCursor c; /* cursor */ int ocx; /* old cursor col */ @@ -184,8 +191,8 @@ static void tnewline(int); static void tputtab(int); static void tputc(Rune); static void treset(void); -static void tscrollup(int, int); -static void tscrolldown(int, int); +static void tscrollup(int, int, int); +static void tscrolldown(int, int, int); static void tsetattr(int *, int); static void tsetchar(Rune, Glyph *, int, int); static void tsetdirt(int, int); @@ -416,10 +423,10 @@ tlinelen(int y) { int i = term.col; - if (term.line[y][i - 1].mode & ATTR_WRAP) + if (TLINE(y)[i - 1].mode & ATTR_WRAP) return i; - while (i > 0 && term.line[y][i - 1].u == ' ') + while (i > 0 && TLINE(y)[i - 1].u == ' ') --i; return i; @@ -528,7 +535,7 @@ selsnap(int *x, int *y, int direction) * Snap around if the word wraps around at the end or * beginning of a line. */ - prevgp = &term.line[*y][*x]; + prevgp = &TLINE(*y)[*x]; prevdelim = ISDELIM(prevgp->u); for (;;) { newx = *x + direction; @@ -543,14 +550,14 @@ selsnap(int *x, int *y, int direction) yt = *y, xt = *x; else yt = newy, xt = newx; - if (!(term.line[yt][xt].mode & ATTR_WRAP)) + if (!(TLINE(yt)[xt].mode & ATTR_WRAP)) break; } if (newx >= tlinelen(newy)) break; - gp = &term.line[newy][newx]; + gp = &TLINE(newy)[newx]; delim = ISDELIM(gp->u); if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim || (delim && gp->u != prevgp->u))) @@ -571,14 +578,14 @@ selsnap(int *x, int *y, int direction) *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 (!(TLINE(*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 + if (!(TLINE(*y)[term.col-1].mode & ATTR_WRAP)) { break; } @@ -609,13 +616,13 @@ getsel(void) } if (sel.type == SEL_RECTANGULAR) { - gp = &term.line[y][sel.nb.x]; + gp = &TLINE(y)[sel.nb.x]; lastx = sel.ne.x; } else { - gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0]; + gp = &TLINE(y)[sel.nb.y == y ? sel.nb.x : 0]; lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1; } - last = &term.line[y][MIN(lastx, linelen-1)]; + last = &TLINE(y)[MIN(lastx, linelen-1)]; while (last >= gp && last->u == ' ') --last; @@ -850,6 +857,9 @@ void ttywrite(const char *s, size_t n, int may_echo) { const char *next; + Arg arg = (Arg) { .i = term.scr }; + + kscrolldown(&arg); if (may_echo && IS_SET(MODE_ECHO)) twrite(s, n, 1); @@ -1061,13 +1071,53 @@ tswapscreen(void) } void -tscrolldown(int orig, int n) +kscrolldown(const Arg* a) +{ + int n = a->i; + + if (n < 0) + n = term.row + n; + + if (n > term.scr) + n = term.scr; + + if (term.scr > 0) { + term.scr -= n; + selscroll(0, -n); + tfulldirt(); + } +} + +void +kscrollup(const Arg* a) +{ + int n = a->i; + + if (n < 0) + n = term.row + n; + + if (term.scr <= HISTSIZE-n) { + term.scr += n; + selscroll(0, n); + tfulldirt(); + } +} + +void +tscrolldown(int orig, int n, int copyhist) { int i; Line temp; LIMIT(n, 0, term.bot-orig+1); + if (copyhist) { + term.histi = (term.histi - 1 + HISTSIZE) % HISTSIZE; + temp = term.hist[term.histi]; + term.hist[term.histi] = term.line[term.bot]; + term.line[term.bot] = temp; + } + tsetdirt(orig, term.bot-n); tclearregion(0, term.bot-n+1, term.col-1, term.bot); @@ -1077,17 +1127,28 @@ tscrolldown(int orig, int n) term.line[i-n] = temp; } - selscroll(orig, n); + if (term.scr == 0) + selscroll(orig, n); } void -tscrollup(int orig, int n) +tscrollup(int orig, int n, int copyhist) { int i; Line temp; LIMIT(n, 0, term.bot-orig+1); + if (copyhist) { + term.histi = (term.histi + 1) % HISTSIZE; + temp = term.hist[term.histi]; + term.hist[term.histi] = term.line[orig]; + term.line[orig] = temp; + } + + if (term.scr > 0 && term.scr < HISTSIZE) + term.scr = MIN(term.scr + n, HISTSIZE-1); + tclearregion(0, orig, term.col-1, orig+n-1); tsetdirt(orig+n, term.bot); @@ -1097,7 +1158,8 @@ tscrollup(int orig, int n) term.line[i+n] = temp; } - selscroll(orig, -n); + if (term.scr == 0) + selscroll(orig, -n); } void @@ -1126,7 +1188,7 @@ tnewline(int first_col) int y = term.c.y; if (y == term.bot) { - tscrollup(term.top, 1); + tscrollup(term.top, 1, 1); } else { y++; } @@ -1291,14 +1353,14 @@ void tinsertblankline(int n) { if (BETWEEN(term.c.y, term.top, term.bot)) - tscrolldown(term.c.y, n); + tscrolldown(term.c.y, n, 0); } void tdeleteline(int n) { if (BETWEEN(term.c.y, term.top, term.bot)) - tscrollup(term.c.y, n); + tscrollup(term.c.y, n, 0); } int32_t @@ -1735,11 +1797,11 @@ csihandle(void) break; case 'S': /* SU -- Scroll line up */ DEFAULT(csiescseq.arg[0], 1); - tscrollup(term.top, csiescseq.arg[0]); + tscrollup(term.top, csiescseq.arg[0], 0); break; case 'T': /* SD -- Scroll line down */ DEFAULT(csiescseq.arg[0], 1); - tscrolldown(term.top, csiescseq.arg[0]); + tscrolldown(term.top, csiescseq.arg[0], 0); break; case 'L': /* IL -- Insert blank lines */ DEFAULT(csiescseq.arg[0], 1); @@ -2251,7 +2313,7 @@ eschandle(uchar ascii) return 0; case 'D': /* IND -- Linefeed */ if (term.c.y == term.bot) { - tscrollup(term.top, 1); + tscrollup(term.top, 1, 1); } else { tmoveto(term.c.x, term.c.y+1); } @@ -2264,7 +2326,7 @@ eschandle(uchar ascii) break; case 'M': /* RI -- Reverse index */ if (term.c.y == term.top) { - tscrolldown(term.top, 1); + tscrolldown(term.top, 1, 1); } else { tmoveto(term.c.x, term.c.y-1); } @@ -2474,7 +2536,7 @@ twrite(const char *buf, int buflen, int show_ctrl) void tresize(int col, int row) { - int i; + int i, j; int minrow = MIN(row, term.row); int mincol = MIN(col, term.col); int *bp; @@ -2511,6 +2573,14 @@ tresize(int col, int row) term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty)); term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs)); + for (i = 0; i < HISTSIZE; i++) { + term.hist[i] = xrealloc(term.hist[i], col * sizeof(Glyph)); + for (j = mincol; j < col; j++) { + term.hist[i][j] = term.c.attr; + term.hist[i][j].u = ' '; + } + } + /* 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)); @@ -2569,7 +2639,7 @@ drawregion(int x1, int y1, int x2, int y2) continue; term.dirty[y] = 0; - xdrawline(term.line[y], x1, y, x2); + xdrawline(TLINE(y), x1, y, x2); } } @@ -2590,8 +2660,9 @@ draw(void) cx--; drawregion(0, 0, term.col, term.row); - xdrawcursor(cx, term.c.y, term.line[term.c.y][cx], - term.ocx, term.ocy, term.line[term.ocy][term.ocx]); + if (term.scr == 0) + 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(); diff --git a/st.c.orig b/st.c.orig index abbbe4b..8051aa1 100644 --- a/st.c.orig +++ b/st.c.orig @@ -200,6 +200,8 @@ static void tdefutf8(char); static int32_t tdefcolor(int *, int *, int); static void tdeftran(char); static void tstrsequence(uchar); +static void tsetcolor(int, int, int, uint32_t, uint32_t); +static char * findlastany(char *, const char**, size_t); static void drawregion(int, int, int, int); @@ -2603,3 +2605,125 @@ redraw(void) tfulldirt(); draw(); } + +void +tsetcolor( int row, int start, int end, uint32_t fg, uint32_t bg ) +{ + int i = start; + for( ; i < end; ++i ) + { + term.line[row][i].fg = fg; + term.line[row][i].bg = bg; + } +} + +char * +findlastany(char *str, const char** find, size_t len) +{ + char* found = NULL; + int i = 0; + for(found = str + strlen(str) - 1; found >= str; --found) { + for(i = 0; i < len; i++) { + if(strncmp(found, find[i], strlen(find[i])) == 0) { + return found; + } + } + } + + return NULL; +} + +/* +** Select and copy the previous url on screen (do nothing if there's no url). +** +** FIXME: doesn't handle urls that span multiple lines; will need to add support +** for multiline "getsel()" first +*/ +void +copyurl(const Arg *arg) { + /* () and [] can appear in urls, but excluding them here will reduce false + * positives when figuring out where a given url ends. + */ + static char URLCHARS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "0123456789-._~:/?#@!$&'*+,;=%"; + + static const char* URLSTRINGS[] = {"http://", "https://"}; + + /* remove highlighting from previous selection if any */ + if(sel.ob.x >= 0 && sel.oe.x >= 0) + tsetcolor(sel.nb.y, sel.ob.x, sel.oe.x + 1, defaultfg, defaultbg); + + int i = 0, + row = 0, /* row of current URL */ + col = 0, /* column of current URL start */ + startrow = 0, /* row of last occurrence */ + colend = 0, /* column of last occurrence */ + passes = 0; /* how many rows have been scanned */ + + char *linestr = calloc(sizeof(char), term.col+1); /* assume ascii */ + char *c = NULL, + *match = NULL; + + row = (sel.ob.x >= 0 && sel.nb.y > 0) ? sel.nb.y : term.bot; + LIMIT(row, term.top, term.bot); + startrow = row; + + colend = (sel.ob.x >= 0 && sel.nb.y > 0) ? sel.nb.x : term.col; + LIMIT(colend, 0, term.col); + + /* + ** Scan from (term.bot,term.col) to (0,0) and find + ** next occurrance of a URL + */ + while(passes !=term.bot + 2) { + /* Read in each column of every row until + ** we hit previous occurrence of URL + */ + for (col = 0, i = 0; col < colend; ++col,++i) { + /* assume ascii */ + if (term.line[row][col].u > 127) + continue; + linestr[i] = term.line[row][col].u; + } + linestr[term.col] = '\0'; + + if ((match = findlastany(linestr, URLSTRINGS, + sizeof(URLSTRINGS)/sizeof(URLSTRINGS[0])))) + break; + + if (--row < term.top) + row = term.bot; + + colend = term.col; + passes++; + }; + + if (match) { + /* must happen before trim */ + selclear(); + sel.ob.x = strlen(linestr) - strlen(match); + + /* trim the rest of the line from the url match */ + for (c = match; *c != '\0'; ++c) + if (!strchr(URLCHARS, *c)) { + *c = '\0'; + break; + } + + /* highlight selection by inverting terminal colors */ + tsetcolor(row, sel.ob.x, sel.ob.x + strlen( match ), defaultbg, defaultfg); + + /* select and copy */ + sel.mode = 1; + sel.type = SEL_REGULAR; + sel.oe.x = sel.ob.x + strlen(match)-1; + sel.ob.y = sel.oe.y = row; + selnormalize(); + tsetdirt(sel.nb.y, sel.ne.y); + xsetsel(getsel()); + xclipcopy(); + } + + free(linestr); +} diff --git a/st.h b/st.h index 4a5d713..bf6d8a3 100644 --- a/st.h +++ b/st.h @@ -81,6 +81,8 @@ void die(const char *, ...); void redraw(void); void draw(void); +void kscrolldown(const Arg *); +void kscrollup(const Arg *); void printscreen(const Arg *); void printsel(const Arg *); void sendbreak(const Arg *); diff --git a/st.o b/st.o index 2b36046..72dcb69 100644 Binary files a/st.o and b/st.o differ diff --git a/x.o b/x.o index 29b5afd..332bd6c 100644 Binary files a/x.o and b/x.o differ -- cgit v1.2.3