commit 89ad217a0b3e5130b0f2b2132239d48efa1b07f4
parent bd1b7c5f0c5990fb1015956e99757dcc23f89162
Author: Markus Hanetzok <markus@hanetzok.net>
Date: Mon, 11 Nov 2024 13:06:44 +0100
add patches and apply scrollback patch
Diffstat:
5 files changed, 759 insertions(+), 27 deletions(-)
diff --git a/config.def.h b/config.def.h
@@ -201,6 +201,8 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { MODKEY, XK_k, kscrollup, {.i = +1} },
+ { MODKEY, XK_j, kscrolldown, {.i = +1} },
};
/*
diff --git a/patches/st-colorschemes-0.8.5.diff b/patches/st-colorschemes-0.8.5.diff
@@ -0,0 +1,306 @@
+From 9bfbafa1e98c13c039bea4790941e51b3a8054b4 Mon Sep 17 00:00:00 2001
+From: Max Schillinger <maxschillinger@web.de>
+Date: Thu, 23 Jun 2022 21:58:37 +0200
+Subject: [PATCH] Add multiple color schemes and key bindings to change them
+
+This commits adds these color schemes:
+
+- the default (dark) st color scheme
+- the default (dark) alacritty color scheme
+- One Half (dark & light)
+- Solarized (dark & light)
+- Gruvbox (dark & light)
+
+Select one with Alt+1..8.
+Select the next one with Alt+0.
+Select the previous one with Ctrl+Alt+0.
+---
+ config.def.h | 118 +++++++++++++++++++++++++++++++++++++--------------
+ st.c | 22 ++++++++++
+ st.h | 2 +
+ x.c | 52 ++++++++++++++++++++++-
+ 4 files changed, 160 insertions(+), 34 deletions(-)
+
+diff --git a/config.def.h b/config.def.h
+index 91ab8ca..38777fe 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -93,46 +93,87 @@ char *termname = "st-256color";
+ */
+ unsigned int tabspaces = 8;
+
+-/* Terminal colors (16 first used in escape sequence) */
+-static const char *colorname[] = {
+- /* 8 normal colors */
+- "black",
+- "red3",
+- "green3",
+- "yellow3",
+- "blue2",
+- "magenta3",
+- "cyan3",
+- "gray90",
+-
+- /* 8 bright colors */
+- "gray50",
+- "red",
+- "green",
+- "yellow",
+- "#5c5cff",
+- "magenta",
+- "cyan",
+- "white",
+-
+- [255] = 0,
+-
+- /* more colors can be added after 255 to use with DefaultXX */
+- "#cccccc",
+- "#555555",
+- "gray90", /* default foreground colour */
+- "black", /* default background colour */
++typedef struct {
++ const char* const colors[258]; /* terminal colors */
++ unsigned int fg; /* foreground */
++ unsigned int bg; /* background */
++ unsigned int cs; /* cursor */
++ unsigned int rcs; /* reverse cursor */
++} ColorScheme;
++/*
++ * Terminal colors (16 first used in escape sequence,
++ * 2 last for custom cursor color),
++ * foreground, background, cursor, reverse cursor
++ */
++static const ColorScheme schemes[] = {
++ // st (dark)
++ {{"black", "red3", "green3", "yellow3",
++ "blue2", "magenta3", "cyan3", "gray90",
++ "gray50", "red", "green", "yellow",
++ "#5c5cff", "magenta", "cyan", "white",
++ [256]="#cccccc", "#555555"}, 7, 0, 256, 257},
++
++ // Alacritty (dark)
++ {{"#1d1f21", "#cc6666", "#b5bd68", "#f0c674",
++ "#81a2be", "#b294bb", "#8abeb7", "#c5c8c6",
++ "#666666", "#d54e53", "#b9ca4a", "#e7c547",
++ "#7aa6da", "#c397d8", "#70c0b1", "#eaeaea",
++ [256]="#cccccc", "#555555"}, 7, 0, 256, 257},
++
++ // One Half dark
++ {{"#282c34", "#e06c75", "#98c379", "#e5c07b",
++ "#61afef", "#c678dd", "#56b6c2", "#dcdfe4",
++ "#282c34", "#e06c75", "#98c379", "#e5c07b",
++ "#61afef", "#c678dd", "#56b6c2", "#dcdfe4",
++ [256]="#cccccc", "#555555"}, 7, 0, 256, 257},
++
++ // One Half light
++ {{"#fafafa", "#e45649", "#50a14f", "#c18401",
++ "#0184bc", "#a626a4", "#0997b3", "#383a42",
++ "#fafafa", "#e45649", "#50a14f", "#c18401",
++ "#0184bc", "#a626a4", "#0997b3", "#383a42",
++ [256]="#cccccc", "#555555"}, 7, 0, 256, 257},
++
++ // Solarized dark
++ {{"#073642", "#dc322f", "#859900", "#b58900",
++ "#268bd2", "#d33682", "#2aa198", "#eee8d5",
++ "#002b36", "#cb4b16", "#586e75", "#657b83",
++ "#839496", "#6c71c4", "#93a1a1", "#fdf6e3",
++ [256]="#93a1a1", "#fdf6e3"}, 12, 8, 256, 257},
++
++ // Solarized light
++ {{"#eee8d5", "#dc322f", "#859900", "#b58900",
++ "#268bd2", "#d33682", "#2aa198", "#073642",
++ "#fdf6e3", "#cb4b16", "#93a1a1", "#839496",
++ "#657b83", "#6c71c4", "#586e75", "#002b36",
++ [256]="#586e75", "#002b36"}, 12, 8, 256, 257},
++
++ // Gruvbox dark
++ {{"#282828", "#cc241d", "#98971a", "#d79921",
++ "#458588", "#b16286", "#689d6a", "#a89984",
++ "#928374", "#fb4934", "#b8bb26", "#fabd2f",
++ "#83a598", "#d3869b", "#8ec07c", "#ebdbb2",
++ [256]="#ebdbb2", "#555555"}, 15, 0, 256, 257},
++
++ // Gruvbox light
++ {{"#fbf1c7", "#cc241d", "#98971a", "#d79921",
++ "#458588", "#b16286", "#689d6a", "#7c6f64",
++ "#928374", "#9d0006", "#79740e", "#b57614",
++ "#076678", "#8f3f71", "#427b58", "#3c3836",
++ [256]="#3c3836", "#555555"}, 15, 0, 256, 257},
+ };
+
++static const char * const * colorname;
++int colorscheme = 0;
+
+ /*
+ * Default colors (colorname index)
+ * foreground, background, cursor, reverse cursor
+ */
+-unsigned int defaultfg = 258;
+-unsigned int defaultbg = 259;
+-unsigned int defaultcs = 256;
+-static unsigned int defaultrcs = 257;
++unsigned int defaultfg;
++unsigned int defaultbg;
++unsigned int defaultcs;
++static unsigned int defaultrcs;
+
+ /*
+ * Default shape of cursor
+@@ -201,6 +242,17 @@ static Shortcut shortcuts[] = {
+ { TERMMOD, XK_Y, selpaste, {.i = 0} },
+ { ShiftMask, XK_Insert, selpaste, {.i = 0} },
+ { TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
++ { MODKEY, XK_1, selectscheme, {.i = 0} },
++ { MODKEY, XK_2, selectscheme, {.i = 1} },
++ { MODKEY, XK_3, selectscheme, {.i = 2} },
++ { MODKEY, XK_4, selectscheme, {.i = 3} },
++ { MODKEY, XK_5, selectscheme, {.i = 4} },
++ { MODKEY, XK_6, selectscheme, {.i = 5} },
++ { MODKEY, XK_7, selectscheme, {.i = 6} },
++ { MODKEY, XK_8, selectscheme, {.i = 7} },
++ { MODKEY, XK_9, selectscheme, {.i = 8} },
++ { MODKEY, XK_0, nextscheme, {.i = +1} },
++ { MODKEY|ControlMask, XK_0, nextscheme, {.i = -1} },
+ };
+
+ /*
+diff --git a/st.c b/st.c
+index 51049ba..3ffe333 100644
+--- a/st.c
++++ b/st.c
+@@ -2196,6 +2196,28 @@ tstrsequence(uchar c)
+ term.esc |= ESC_STR;
+ }
+
++void
++tupdatebgcolor(int oldbg, int newbg)
++{
++ for (int y = 0; y < term.row; y++) {
++ for (int x = 0; x < term.col; x++) {
++ if (term.line[y][x].bg == oldbg)
++ term.line[y][x].bg = newbg;
++ }
++ }
++}
++
++void
++tupdatefgcolor(int oldfg, int newfg)
++{
++ for (int y = 0; y < term.row; y++) {
++ for (int x = 0; x < term.col; x++) {
++ if (term.line[y][x].fg == oldfg)
++ term.line[y][x].fg = newfg;
++ }
++ }
++}
++
+ void
+ tcontrolcode(uchar ascii)
+ {
+diff --git a/st.h b/st.h
+index 519b9bd..2700de5 100644
+--- a/st.h
++++ b/st.h
+@@ -90,6 +90,8 @@ int tattrset(int);
+ void tnew(int, int);
+ void tresize(int, int);
+ void tsetdirtattr(int);
++void tupdatebgcolor(int, int);
++void tupdatefgcolor(int, int);
+ void ttyhangup(void);
+ int ttynew(const char *, char *, const char *, char **);
+ size_t ttyread(void);
+diff --git a/x.c b/x.c
+index 8a16faa..bc0a48c 100644
+--- a/x.c
++++ b/x.c
+@@ -59,6 +59,8 @@ static void zoom(const Arg *);
+ static void zoomabs(const Arg *);
+ static void zoomreset(const Arg *);
+ static void ttysend(const Arg *);
++static void nextscheme(const Arg *);
++static void selectscheme(const Arg *);
+
+ /* config.h for applying patches and the configuration. */
+ #include "config.h"
+@@ -185,6 +187,7 @@ static void mousesel(XEvent *, int);
+ static void mousereport(XEvent *);
+ static char *kmap(KeySym, uint);
+ static int match(uint, uint);
++static void updatescheme(void);
+
+ static void run(void);
+ static void usage(void);
+@@ -785,7 +788,7 @@ xloadcols(void)
+ for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp)
+ XftColorFree(xw.dpy, xw.vis, xw.cmap, cp);
+ } else {
+- dc.collen = MAX(LEN(colorname), 256);
++ dc.collen = 258;
+ dc.col = xmalloc(dc.collen * sizeof(Color));
+ }
+
+@@ -2008,6 +2011,47 @@ usage(void)
+ " [stty_args ...]\n", argv0, argv0);
+ }
+
++void
++nextscheme(const Arg *arg)
++{
++ colorscheme += arg->i;
++ if (colorscheme >= (int)LEN(schemes))
++ colorscheme = 0;
++ else if (colorscheme < 0)
++ colorscheme = LEN(schemes) - 1;
++ updatescheme();
++}
++
++void
++selectscheme(const Arg *arg)
++{
++ if (BETWEEN(arg->i, 0, LEN(schemes)-1)) {
++ colorscheme = arg->i;
++ updatescheme();
++ }
++}
++
++void
++updatescheme(void)
++{
++ int oldbg, oldfg;
++
++ oldbg = defaultbg;
++ oldfg = defaultfg;
++ colorname = schemes[colorscheme].colors;
++ defaultbg = schemes[colorscheme].bg;
++ defaultfg = schemes[colorscheme].fg;
++ defaultcs = schemes[colorscheme].cs;
++ defaultrcs = schemes[colorscheme].rcs;
++ xloadcols();
++ if (defaultbg != oldbg)
++ tupdatebgcolor(oldbg, defaultbg);
++ if (defaultfg != oldfg)
++ tupdatefgcolor(oldfg, defaultfg);
++ cresize(win.w, win.h);
++ redraw();
++}
++
+ int
+ main(int argc, char *argv[])
+ {
+@@ -2060,6 +2104,12 @@ main(int argc, char *argv[])
+ } ARGEND;
+
+ run:
++ colorname = schemes[colorscheme].colors;
++ defaultbg = schemes[colorscheme].bg;
++ defaultfg = schemes[colorscheme].fg;
++ defaultcs = schemes[colorscheme].cs;
++ defaultrcs = schemes[colorscheme].rcs;
++
+ if (argc > 0) /* eat all remaining arguments */
+ opt_cmd = argv;
+
+--
+2.36.1
+
diff --git a/patches/st-scrollback-0.8.4.diff 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 <n> 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 <n> 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 <n> 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.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 */
@@ -185,8 +192,8 @@ 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(const int *, int);
static void tsetchar(Rune, const Glyph *, int, int);
static void tsetdirt(int, int);
@@ -409,10 +416,10 @@ 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;
@@ -521,7 +528,7 @@ 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;
@@ -536,14 +543,14 @@ 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)))
@@ -564,14 +571,14 @@ 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;
}
@@ -602,13 +609,13 @@ 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;
@@ -844,6 +851,9 @@ 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);
@@ -1055,13 +1065,53 @@ 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);
@@ -1071,17 +1121,28 @@ 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);
@@ -1091,7 +1152,8 @@ tscrollup(int orig, int n)
term.line[i+n] = temp;
}
- selscroll(orig, -n);
+ if (term.scr == 0)
+ selscroll(orig, -n);
}
void
@@ -1120,7 +1182,7 @@ tnewline(int first_col)
int y = term.c.y;
if (y == term.bot) {
- tscrollup(term.top, 1);
+ tscrollup(term.top, 1, 1);
} else {
y++;
}
@@ -1288,14 +1350,14 @@ 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)
case 'S': /* SU -- Scroll <n> line up */
if (csiescseq.priv) break;
DEFAULT(csiescseq.arg[0], 1);
- tscrollup(term.top, csiescseq.arg[0]);
+ tscrollup(term.top, csiescseq.arg[0], 0);
break;
case 'T': /* SD -- Scroll <n> 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 <n> blank lines */
DEFAULT(csiescseq.arg[0], 1);
@@ -2309,7 +2371,7 @@ 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);
}
@@ -2322,7 +2384,7 @@ 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);
}
@@ -2545,7 +2607,7 @@ 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;
@@ -2582,6 +2644,14 @@ 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));
@@ -2640,7 +2710,7 @@ 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);
}
}
@@ -2661,8 +2731,9 @@ 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
@@ -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 *);
