X-Git-Url: https://git.danieliu.xyz/?a=blobdiff_plain;ds=sidebyside;f=st.c;h=4dc1c5acba75165857a294af55ebd37e7b21ea5f;hb=8fdba7494fe33d3be1f6f96b8e900ef1bca01d47;hp=e6a5e4ea32d35fd70b74bc0d45016c18d674747e;hpb=751fb765e4f26ce1500b4e8ee9f4cd5b6039b495;p=st.git

diff --git a/st.c b/st.c
index e6a5e4e..4dc1c5a 100644
--- a/st.c
+++ b/st.c
@@ -66,17 +66,61 @@
 #define X2COL(x) (((x) - BORDER)/xw.cw)
 #define Y2ROW(y) (((y) - BORDER)/xw.ch)
 
-/* Attribute, Cursor, Character state, Terminal mode, Screen draw mode */
-enum { ATTR_NULL=0 , ATTR_REVERSE=1 , ATTR_UNDERLINE=2, ATTR_BOLD=4, ATTR_GFX=8 };
-enum { CURSOR_UP, CURSOR_DOWN, CURSOR_LEFT, CURSOR_RIGHT,
-       CURSOR_SAVE, CURSOR_LOAD };
-enum { CURSOR_DEFAULT = 0, CURSOR_HIDE = 1, CURSOR_WRAPNEXT = 2 };
-enum { GLYPH_SET=1, GLYPH_DIRTY=2 };
-enum { MODE_WRAP=1, MODE_INSERT=2, MODE_APPKEYPAD=4, MODE_ALTSCREEN=8,
-       MODE_CRLF=16, MODE_MOUSEBTN=32, MODE_MOUSEMOTION=64, MODE_MOUSE=32|64, MODE_REVERSE=128 };
-enum { ESC_START=1, ESC_CSI=2, ESC_OSC=4, ESC_TITLE=8, ESC_ALTCHARSET=16 };
-enum { WIN_VISIBLE=1, WIN_REDRAW=2, WIN_FOCUSED=4 };
+enum glyph_attribute {
+	ATTR_NULL      = 0,
+	ATTR_REVERSE   = 1,
+	ATTR_UNDERLINE = 2,
+	ATTR_BOLD      = 4,
+	ATTR_GFX       = 8,
+};
+
+enum cursor_movement {
+	CURSOR_UP,
+	CURSOR_DOWN,
+	CURSOR_LEFT,
+	CURSOR_RIGHT,
+	CURSOR_SAVE,
+	CURSOR_LOAD
+};
+
+enum cursor_state {
+	CURSOR_DEFAULT  = 0,
+	CURSOR_HIDE     = 1,
+	CURSOR_WRAPNEXT = 2
+};
+
+enum glyph_state {
+	GLYPH_SET   = 1,
+	GLYPH_DIRTY = 2
+};
 
+enum term_mode {
+	MODE_WRAP        = 1,
+	MODE_INSERT      = 2,
+	MODE_APPKEYPAD   = 4,
+	MODE_ALTSCREEN   = 8,
+	MODE_CRLF        = 16,
+	MODE_MOUSEBTN    = 32,
+	MODE_MOUSEMOTION = 64,
+	MODE_MOUSE       = 32|64,
+	MODE_REVERSE     = 128
+};
+
+enum escape_state {
+	ESC_START      = 1,
+	ESC_CSI        = 2,
+	ESC_OSC        = 4,
+	ESC_TITLE      = 8,
+	ESC_ALTCHARSET = 16
+};
+
+enum window_state {
+	WIN_VISIBLE = 1,
+	WIN_REDRAW  = 2,
+	WIN_FOCUSED = 4
+};
+
+/* bit macro */
 #undef B0
 enum { B0=1, B1=2, B2=4, B3=8, B4=16, B5=32, B6=64, B7=128 };
 
@@ -215,6 +259,7 @@ static void tsetattr(int*, int);
 static void tsetchar(char*);
 static void tsetscroll(int, int);
 static void tswapscreen(void);
+static void tsetdirt(int, int);
 static void tfulldirt(void);
 
 static void ttynew(void);
@@ -402,8 +447,8 @@ utf8size(char *s) {
 
 void
 selinit(void) {
-	sel.tclick1.tv_sec = 0;
-	sel.tclick1.tv_usec = 0;
+	memset(&sel.tclick1, 0, sizeof(sel.tclick1));
+	memset(&sel.tclick2, 0, sizeof(sel.tclick2));
 	sel.mode = 0;
 	sel.bx = -1;
 	sel.clip = NULL;
@@ -476,8 +521,7 @@ bpress(XEvent *e) {
 		mousereport(e);
 	else if(e->xbutton.button == Button1) {
 		if(sel.bx != -1)
-			for(int i=sel.b.y; i<=sel.e.y; i++)
-				term.dirty[i] = 1;
+			tsetdirt(sel.b.y, sel.e.y);
 		sel.mode = 1;
 		sel.ex = sel.bx = X2COL(e->xbutton.x);
 		sel.ey = sel.by = Y2ROW(e->xbutton.y);
@@ -487,21 +531,28 @@ bpress(XEvent *e) {
 void
 selcopy(void) {
 	char *str, *ptr;
-	int x, y, sz, sl, ls = 0;
+	int x, y, bufsize, is_selected = 0;
 
 	if(sel.bx == -1)
 		str = NULL;
+
 	else {
-		sz = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
-		ptr = str = malloc(sz);
+		bufsize = (term.col+1) * (sel.e.y-sel.b.y+1) * UTF_SIZ;
+		ptr = str = malloc(bufsize);
+
+		/* append every set & selected glyph to the selection */
 		for(y = 0; y < term.row; y++) {
-			for(x = 0; x < term.col; x++)
-				if(term.line[y][x].state & GLYPH_SET && (ls = selected(x, y))) {
-					sl = utf8size(term.line[y][x].c);
-					memcpy(ptr, term.line[y][x].c, sl);
-					ptr += sl;
+			for(x = 0; x < term.col; x++) {
+				is_selected = selected(x, y);
+				if((term.line[y][x].state & GLYPH_SET) && is_selected) {
+					int size = utf8size(term.line[y][x].c);
+					memcpy(ptr, term.line[y][x].c, size);
+					ptr += size;
 				}
-			if(ls && y < sel.e.y)
+			}
+
+			/* \n at the end of every selected line except for the last one */
+			if(is_selected && y < sel.e.y)
 				*ptr++ = '\n';
 		}
 		*ptr = 0;
@@ -643,8 +694,7 @@ bmotion(XEvent *e) {
 		if(oldey != sel.ey || oldex != sel.ex) {
 			int starty = MIN(oldey, sel.ey);
 			int endy = MAX(oldey, sel.ey);
-			for(int i = starty; i <= endy; i++)
-				term.dirty[i] = 1;
+			tsetdirt(starty, endy);
 			draw();
 		}
 	}
@@ -665,7 +715,7 @@ execsh(void) {
 	char **args;
 	char *envshell = getenv("SHELL");
 
-	DEFAULT(envshell, "sh");
+	DEFAULT(envshell, SHELL);
 	putenv("TERM="TNAME);
 	args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};
 	execvp(args[0], args);
@@ -769,13 +819,23 @@ ttyresize(int x, int y) {
 }
 
 void
-tfulldirt(void)
+tsetdirt(int top, int bot)
 {
 	int i;
-	for(i = 0; i < term.row; i++)
+
+	LIMIT(top, 0, term.row-1);
+	LIMIT(bot, 0, term.row-1);
+
+	for(i = top; i <= bot; i++)
 		term.dirty[i] = 1;
 }
 
+void
+tfulldirt(void)
+{
+	tsetdirt(0, term.row-1);
+}
+
 void
 tcursor(int mode) {
 	static TCursor c;
@@ -1343,8 +1403,17 @@ csihandle(void) {
 
 void
 csidump(void) {
-	fwrite("\033[", 1, 2, stdout);
-	fwrite(escseq.buf, 1, escseq.len, stdout);
+	int i;
+	printf("ESC[");
+	for(i = 0; i < escseq.len; i++) {
+		uint c = escseq.buf[i] & 0xff;
+		if(isprint(c)) putchar(c);
+		else if(c == '\n') printf("(\\n)");
+		else if(c == '\r') printf("(\\r)");
+		else if(c == 0x1b) printf("(\\e)");
+		else printf("(%02x)", c);
+	}
+	putchar('\n');
 }
 
 void