[wiki] [sites] Fix scrollback patch link and file name. || Alex Pilon

From: <git_AT_suckless.org>
Date: Sat, 19 Dec 2015 19:28:09 +0100

commit 670d28a7af352a65baf58c878fa5bb95efc09d77
Author: Alex Pilon <alp_AT_alexpilon.ca>
Date: Sat Dec 19 13:27:57 2015 -0500

    Fix scrollback patch link and file name.

diff --git a/st.suckless.org/patches/git-st-20151217-scrollback.diff b/st.suckless.org/patches/git-st-20151217-scrollback.diff
deleted file mode 100644
index 7bd97be..0000000
--- a/st.suckless.org/patches/git-st-20151217-scrollback.diff
+++ /dev/null
_AT_@ -1,388 +0,0 @@
-diff --git a/config.def.h b/config.def.h
-index fd09d72..96892f1 100644
---- a/config.def.h
-+++ b/config.def.h
-_AT_@ -7,6 +7,7 @@
- */
- static char font[] = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
- static int borderpx = 2;
-+#define histsize 2000
-
- /*
- * What program is execed by st depends of these precedence rules:
-_AT_@ -157,6 +158,8 @@ static Shortcut shortcuts[] = {
- { MODKEY|ShiftMask, XK_C, clipcopy, {.i = 0} },
- { MODKEY|ShiftMask, XK_V, clippaste, {.i = 0} },
- { MODKEY, 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 c5d62c1..c58c8c5 100644
---- a/st.c
-+++ b/st.c
-_AT_@ -85,6 +85,8 @@ char *argv0;
- #define TRUERED(x) (((x) & 0xff0000) >> 8)
- #define TRUEGREEN(x) (((x) & 0xff00))
- #define TRUEBLUE(x) (((x) & 0xff) << 8)
-+#define TLINE(y) ((y) < term.scr ? term.hist[((y) + term.histi - term.scr \
-+ + histsize + 1) % histsize] : term.line[(y) - term.scr])
-
-
- enum glyph_attribute {
-_AT_@ -227,26 +229,6 @@ typedef struct {
- int narg; /* nb of args */
- } STREscape;
-
--/* 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 */
-- XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */
-- TCursor c; /* cursor */
-- 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 numlock; /* lock numbers in keyboard */
-- int *tabs;
--} Term;
--
- /* Purely graphic info */
- typedef struct {
- 	Display *dpy;
-_AT_@ -326,6 +308,8 @@ typedef struct {
- /* function definitions used in config.h */
- static void clipcopy(const Arg *);
- static void clippaste(const Arg *);
-+static void kscrolldown(const Arg *);
-+static void kscrollup(const Arg *);
- static void numlock(const Arg *);
- static void selpaste(const Arg *);
- static void xzoom(const Arg *);
-_AT_@ -359,6 +343,29 @@ typedef struct {
- 	GC gc;
- } DC;
- 
-+/* Internal representation of the screen */
-+typedef struct {
-+	int row;      /* nb row */
-+	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 */
-+	XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */
-+	TCursor c;    /* cursor */
-+	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 numlock; /* lock numbers in keyboard */
-+	int *tabs;
-+} Term;
-+
- static void die(const char *, ...);
- static void draw(void);
- static void redraw(void);
-_AT_@ -398,8 +405,8 @@ 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 tscrollup(int, int, int);
-+static void tscrolldown(int, int, int);
- static void tsetattr(int *, int);
- static void tsetchar(Rune, Glyph *, int, int);
- static void tsetscroll(int, int);
-_AT_@ -730,10 +737,10 @@ 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;
-_AT_@ -795,7 +802,7 @@ 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;
-_AT_@ -810,14 +817,14 @@ 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)))
-_AT_@ -838,14 +845,14 @@ 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;
- 				}
-_AT_@ -1011,13 +1018,13 @@ 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;
- 
-_AT_@ -1490,6 +1497,9 @@ ttyread(void)
- 	/* keep any uncomplete utf8 char for the next call */
- 	memmove(buf, ptr, buflen);
- 
-+	if (term.scr > 0 && term.scr < histsize-1)
-+		term.scr++;
-+
- 	return ret;
- }
- 
-_AT_@ -1499,6 +1509,9 @@ ttywrite(const char *s, size_t n)
- 	fd_set wfd, rfd;
- 	ssize_t r;
- 	size_t lim = 256;
-+	Arg arg = (Arg){ .i = term.scr };
-+
-+	kscrolldown(&arg);
- 
- 	/*
- 	 * Remember that we are using a pty, which might be a modem line.
-_AT_@ -1690,13 +1703,53 @@ 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);
- 
-_AT_@ -1710,13 +1763,20 @@ tscrolldown(int orig, int 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;
-+	}
-+
- 	tclearregion(0, orig, term.col-1, orig+n-1);
- 	tsetdirt(orig+n, term.bot);
- 
-_AT_@ -1765,7 +1825,7 @@ tnewline(int first_col)
- 	int y = term.c.y;
- 
- 	if (y == term.bot) {
--		tscrollup(term.top, 1);
-+		tscrollup(term.top, 1, 1);
- 	} else {
- 		y++;
- 	}
-_AT_@ -1930,14 +1990,14 @@ 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
-_AT_@ -2371,11 +2431,11 @@ 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);
-_AT_@ -2871,7 +2931,7 @@ 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);
- 		}
-_AT_@ -2884,7 +2944,7 @@ 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);
- 		}
-_AT_@ -3047,7 +3107,7 @@ tputc(Rune u)
- 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;
-_AT_@ -3087,6 +3147,14 @@ 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));
-_AT_@ -3984,11 +4052,11 @@ drawregion(int x1, int y1, int x2, int y2)
- 		term.dirty[y] = 0;
- 
- 		specs = term.specbuf;
--		numspecs = xmakeglyphfontspecs(specs, &term.line[y][x1], x2 - x1, x1, y);
-+		numspecs = xmakeglyphfontspecs(specs, &TLINE(y)[x1], x2 - x1, x1, y);
- 
- 		i = ox = 0;
- 		for (x = x1; x < x2 && i < numspecs; x++) {
--			new = term.line[y][x];
-+			new = TLINE(y)[x];
- 			if (new.mode == ATTR_WDUMMY)
- 				continue;
- 			if (ena_sel && selected(x, y))
-_AT_@ -4008,7 +4076,8 @@ drawregion(int x1, int y1, int x2, int y2)
- 		if (i > 0)
- 			xdrawglyphfontspecs(specs, base, i, ox, y);
- 	}
--	xdrawcursor();
-+	if (term.scr == 0)
-+		xdrawcursor();
- }
- 
- void
-
diff --git a/st.suckless.org/patches/scrollback.md b/st.suckless.org/patches/scrollback.md
index 8878c37..45c4f90 100644
--- a/st.suckless.org/patches/scrollback.md
+++ b/st.suckless.org/patches/scrollback.md
_AT_@ -9,7 +9,7 @@ Scroll back through terminal output using Shift+{PageUp, PageDown}.
 Download
 --------
 
-* [st-git-20151122-scrollback.diff](st-git-20151217-scrollback.diff)
+* [st-git-20151217-scrollback.diff](st-git-20151217-scrollback.diff)
 
 Apply the following patch on top of the previous to allow scrolling
 using Shift+MouseWheel.
diff --git a/st.suckless.org/patches/st-git-20151217-scrollback.diff b/st.suckless.org/patches/st-git-20151217-scrollback.diff
new file mode 100644
index 0000000..7bd97be
--- /dev/null
+++ b/st.suckless.org/patches/st-git-20151217-scrollback.diff
_AT_@ -0,0 +1,388 @@
+diff --git a/config.def.h b/config.def.h
+index fd09d72..96892f1 100644
+--- a/config.def.h
++++ b/config.def.h
+_AT_@ -7,6 +7,7 @@
+  */
+ static char font[] = "Liberation Mono:pixelsize=12:antialias=true:autohint=true";
+ static int borderpx = 2;
++#define histsize 2000
+ 
+ /*
+  * What program is execed by st depends of these precedence rules:
+_AT_@ -157,6 +158,8 @@ static Shortcut shortcuts[] = {
+ 	{ MODKEY|ShiftMask,     XK_C,           clipcopy,       {.i =  0} },
+ 	{ MODKEY|ShiftMask,     XK_V,           clippaste,      {.i =  0} },
+ 	{ MODKEY,               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 c5d62c1..c58c8c5 100644
+--- a/st.c
++++ b/st.c
+_AT_@ -85,6 +85,8 @@ char *argv0;
+ #define TRUERED(x)		(((x) & 0xff0000) >> 8)
+ #define TRUEGREEN(x)		(((x) & 0xff00))
+ #define TRUEBLUE(x)		(((x) & 0xff) << 8)
++#define TLINE(y)		((y) < term.scr ? term.hist[((y) + term.histi - term.scr \
++				+ histsize + 1) % histsize] : term.line[(y) - term.scr])
+ 
+ 
+ enum glyph_attribute {
+_AT_@ -227,26 +229,6 @@ typedef struct {
+ 	int narg;              /* nb of args */
+ } STREscape;
+ 
+-/* 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 */
+-	XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */
+-	TCursor c;    /* cursor */
+-	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 numlock; /* lock numbers in keyboard */
+-	int *tabs;
+-} Term;
+-
+ /* Purely graphic info */
+ typedef struct {
+ 	Display *dpy;
+_AT_@ -326,6 +308,8 @@ typedef struct {
+ /* function definitions used in config.h */
+ static void clipcopy(const Arg *);
+ static void clippaste(const Arg *);
++static void kscrolldown(const Arg *);
++static void kscrollup(const Arg *);
+ static void numlock(const Arg *);
+ static void selpaste(const Arg *);
+ static void xzoom(const Arg *);
+_AT_@ -359,6 +343,29 @@ typedef struct {
+ 	GC gc;
+ } DC;
+ 
++/* Internal representation of the screen */
++typedef struct {
++	int row;      /* nb row */
++	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 */
++	XftGlyphFontSpec *specbuf; /* font spec buffer used for rendering */
++	TCursor c;    /* cursor */
++	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 numlock; /* lock numbers in keyboard */
++	int *tabs;
++} Term;
++
+ static void die(const char *, ...);
+ static void draw(void);
+ static void redraw(void);
+_AT_@ -398,8 +405,8 @@ 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 tscrollup(int, int, int);
++static void tscrolldown(int, int, int);
+ static void tsetattr(int *, int);
+ static void tsetchar(Rune, Glyph *, int, int);
+ static void tsetscroll(int, int);
+_AT_@ -730,10 +737,10 @@ 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;
+_AT_@ -795,7 +802,7 @@ 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;
+_AT_@ -810,14 +817,14 @@ 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)))
+_AT_@ -838,14 +845,14 @@ 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;
+ 				}
+_AT_@ -1011,13 +1018,13 @@ 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;
+ 
+_AT_@ -1490,6 +1497,9 @@ ttyread(void)
+ 	/* keep any uncomplete utf8 char for the next call */
+ 	memmove(buf, ptr, buflen);
+ 
++	if (term.scr > 0 && term.scr < histsize-1)
++		term.scr++;
++
+ 	return ret;
+ }
+ 
+_AT_@ -1499,6 +1509,9 @@ ttywrite(const char *s, size_t n)
+ 	fd_set wfd, rfd;
+ 	ssize_t r;
+ 	size_t lim = 256;
++	Arg arg = (Arg){ .i = term.scr };
++
++	kscrolldown(&arg);
+ 
+ 	/*
+ 	 * Remember that we are using a pty, which might be a modem line.
+_AT_@ -1690,13 +1703,53 @@ 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);
+ 
+_AT_@ -1710,13 +1763,20 @@ tscrolldown(int orig, int 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;
++	}
++
+ 	tclearregion(0, orig, term.col-1, orig+n-1);
+ 	tsetdirt(orig+n, term.bot);
+ 
+_AT_@ -1765,7 +1825,7 @@ tnewline(int first_col)
+ 	int y = term.c.y;
+ 
+ 	if (y == term.bot) {
+-		tscrollup(term.top, 1);
++		tscrollup(term.top, 1, 1);
+ 	} else {
+ 		y++;
+ 	}
+_AT_@ -1930,14 +1990,14 @@ 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
+_AT_@ -2371,11 +2431,11 @@ 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);
+_AT_@ -2871,7 +2931,7 @@ 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);
+ 		}
+_AT_@ -2884,7 +2944,7 @@ 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);
+ 		}
+_AT_@ -3047,7 +3107,7 @@ tputc(Rune u)
+ 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;
+_AT_@ -3087,6 +3147,14 @@ 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));
+_AT_@ -3984,11 +4052,11 @@ drawregion(int x1, int y1, int x2, int y2)
+ 		term.dirty[y] = 0;
+ 
+ 		specs = term.specbuf;
+-		numspecs = xmakeglyphfontspecs(specs, &term.line[y][x1], x2 - x1, x1, y);
++		numspecs = xmakeglyphfontspecs(specs, &TLINE(y)[x1], x2 - x1, x1, y);
+ 
+ 		i = ox = 0;
+ 		for (x = x1; x < x2 && i < numspecs; x++) {
+-			new = term.line[y][x];
++			new = TLINE(y)[x];
+ 			if (new.mode == ATTR_WDUMMY)
+ 				continue;
+ 			if (ena_sel && selected(x, y))
+_AT_@ -4008,7 +4076,8 @@ drawregion(int x1, int y1, int x2, int y2)
+ 		if (i > 0)
+ 			xdrawglyphfontspecs(specs, base, i, ox, y);
+ 	}
+-	xdrawcursor();
++	if (term.scr == 0)
++		xdrawcursor();
+ }
+ 
+ void
+
Received on Sat Dec 19 2015 - 19:28:09 CET

This archive was generated by hypermail 2.3.0 : Sat Dec 19 2015 - 19:36:14 CET