From: Michael Buch <michaelbuc...@gmail.com>

---
 config.def.h |  1 +
 st.c         | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 st.h         |  1 +
 3 files changed, 64 insertions(+)

diff --git a/config.def.h b/config.def.h
index 82b1b09..cbe923e 100644
--- a/config.def.h
+++ b/config.def.h
@@ -178,6 +178,7 @@ static Shortcut shortcuts[] = {
        { TERMMOD,              XK_Y,           selpaste,       {.i =  0} },
        { TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
        { TERMMOD,              XK_I,           iso14755,       {.i =  0} },
+       { MODKEY,               XK_l,           copyurl,        {.i =  0} },
 };
 
 /*
diff --git a/st.c b/st.c
index 0628707..3df99d9 100644
--- a/st.c
+++ b/st.c
@@ -2617,3 +2617,65 @@ redraw(void)
        tfulldirt();
        draw();
 }
+
+/* select and copy the previous url on screen (do nothing if there's no url).
+ * known bug: doesn't handle urls that span multiple lines (wontfix)
+ * known bug: only finds first url on line (mightfix)
+ */
+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-._~:/?#@!$&'*+,;=%";
+
+       int i, row, startrow;
+       char *linestr = calloc(sizeof(char), term.col+1); /* assume ascii */
+       char *c, *match = NULL;
+
+       row = (sel.ob.x >= 0 && sel.nb.y > 0) ? sel.nb.y-1 : term.bot;
+       LIMIT(row, term.top, term.bot);
+       startrow = row;
+
+       /* find the start of the last url before selection */
+       do {
+               for (i = 0; i < term.col; ++i) {
+                       if (term.line[row][i].u > 127) /* assume ascii */
+                               continue;
+                       linestr[i] = term.line[row][i].u;
+               }
+               linestr[term.col] = '\0';
+               if ((match = strstr(linestr, "http://";))
+                               || (match = strstr(linestr, "https://";)))
+                       break;
+               if (--row < term.top)
+                       row = term.bot;
+       } while (row != startrow);
+
+       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;
+                       }
+
+               /* 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 dac64d8..5a58f8f 100644
--- a/st.h
+++ b/st.h
@@ -85,6 +85,7 @@ void printscreen(const Arg *);
 void printsel(const Arg *);
 void sendbreak(const Arg *);
 void toggleprinter(const Arg *);
+void copyurl(const Arg *);
 
 int tattrset(int);
 void tnew(int, int);
-- 
2.17.0


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