1 files changed, 121 insertions, 0 deletions
diff --git a/st.c.rej b/st.c.rej
new file mode 100644
index 0000000..ca81ac7
--- /dev/null
+++ b/st.c.rej
@@ -0,0 +1,121 @@
+--- st.c
++++ st.c
+@@ -152,6 +152,11 @@ typedef struct {
+ 	int narg;              /* nb of args */
+ } STREscape;
+ 
++typedef struct {
++	int state;
++	size_t length;
++} URLdfa;
++
+ static void execsh(char *, char **);
+ static void stty(char **);
+ static void sigchld(int);
+@@ -201,6 +206,7 @@ static void tdefutf8(char);
+ static int32_t tdefcolor(const int *, int *, int);
+ static void tdeftran(char);
+ static void tstrsequence(uchar);
++static int daddch(URLdfa *, char);
+ 
+ static void drawregion(int, int, int, int);
+ 
+@@ -2666,3 +2672,98 @@ redraw(void)
+ 	tfulldirt();
+ 	draw();
+ }
++
++int
++daddch(URLdfa *dfa, char c)
++{
++	/* () and [] can appear in urls, but excluding them here will reduce false
++	 * positives when figuring out where a given url ends.
++	 */
++	static const char URLCHARS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
++		"abcdefghijklmnopqrstuvwxyz"
++		"0123456789-._~:/?#@!$&'*+,;=%";
++	static const char RPFX[] = "//:sptth";
++
++	if (!strchr(URLCHARS, c)) {
++		dfa->length = 0;
++		dfa->state = 0;
++
++		return 0;
++	}
++
++	dfa->length++;
++
++	if (dfa->state == 2 && c == '/') {
++		dfa->state = 0;
++	} else if (dfa->state == 3 && c == 'p') {
++		dfa->state++;
++	} else if (c != RPFX[dfa->state]) {
++		dfa->state = 0;
++		return 0;
++	}
++
++	if (dfa->state++ == 7) {
++		dfa->state = 0;
++		return 1;
++	}
++
++	return 0;
++}
++
++/*
++** Select and copy the previous url on screen (do nothing if there's no url).
++*/
++void
++copyurl(const Arg *arg) {
++	int row = 0, /* row of current URL */
++		col = 0, /* column of current URL start */
++		colend = 0, /* column of last occurrence */
++		passes = 0; /* how many rows have been scanned */
++
++	const char *c = NULL,
++		 *match = NULL;
++	URLdfa dfa = { 0 };
++
++	row = (sel.ob.x >= 0 && sel.nb.y > 0) ? sel.nb.y : term.bot;
++	LIMIT(row, term.top, term.bot);
++
++	colend = (sel.ob.x >= 0 && sel.nb.y > 0) ? sel.nb.x : term.col;
++	LIMIT(colend, 0, term.col);
++
++	/*
++	** Scan from (term.row - 1,term.col - 1) to (0,0) and find
++	** next occurrance of a URL
++	*/
++	for (passes = 0; passes < term.row; passes++) {
++		/* Read in each column of every row until
++		** we hit previous occurrence of URL
++		*/
++		for (col = colend; col--;)
++			if (daddch(&dfa, term.line[row][col].u < 128 ? term.line[row][col].u : ' '))
++				break;
++
++		if (col >= 0)
++			break;
++
++        /* .i = 0 --> botton-up
++         * .i = 1 --> top-down
++         */
++        if (!arg->i) {
++            if (--row < 0)
++                row = term.row - 1;
++        } else {
++            if (++row >= term.row)
++                row = 0;
++        }
++
++		colend = term.col;
++	}
++
++	if (passes < term.row) {
++		selstart(col, row, 0);
++		selextend((col + dfa.length - 1) % term.col, row + (col + dfa.length - 1) / term.col, SEL_REGULAR, 0);
++		selextend((col + dfa.length - 1) % term.col, row + (col + dfa.length - 1) / term.col, SEL_REGULAR, 1);
++		xsetsel(getsel());
++		xclipcopy();
++	}
++}