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From 897c3958d01d8df80ebf1666b972b8a658b419ba Mon Sep 17 00:00:00 2001
From: Santtu Lakkala <inz@inz.fi>
Date: Wed, 16 Feb 2022 20:34:20 +0200
Subject: [PATCH] Loop through urls on screen and copy to clipboard
Based on the previous highlighting patches, slightly simplified and
fixes graphical issues with mixed copyurl and selection.
---
config.def.h | 1 +
st.c | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++
st.h | 1 +
3 files changed, 84 insertions(+)
diff --git a/config.def.h b/config.def.h
index 91ab8ca..3f365c7 100644
--- a/config.def.h
+++ b/config.def.h
@@ -201,6 +201,7 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { MODKEY, XK_l, copyurl, {.i = 0} },
};
/*
diff --git a/st.c b/st.c
index 51049ba..bf3d81a 100644
--- a/st.c
+++ b/st.c
@@ -200,6 +200,7 @@ static void tdefutf8(char);
static int32_t tdefcolor(const int *, int *, int);
static void tdeftran(char);
static void tstrsequence(uchar);
+static const char *findlastany(const char *, const char**, size_t);
static void drawregion(int, int, int, int);
@@ -2688,3 +2689,84 @@ redraw(void)
tfulldirt();
draw();
}
+
+const char *
+findlastany(const char *str, const char**find, size_t len)
+{
+ const char *found = NULL;
+ int i = 0;
+
+ for (found = str + strlen(str) - 1; found >= str; --found) {
+ for(i = 0; i < len; i++) {
+ if (strncmp(found, find[i], strlen(find[i])) == 0) {
+ return found;
+ }
+ }
+ }
+
+ return NULL;
+}
+
+/*
+** Select and copy the previous url on screen (do nothing if there's no url).
+**
+** FIXME: doesn't handle urls that span multiple lines; will need to add support
+** for multiline "getsel()" first
+*/
+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 const char URLCHARS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz"
+ "0123456789-._~:/?#@!$&'*+,;=%";
+
+ static const char* URLSTRINGS[] = {"http://", "https://"};
+
+ 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 */
+
+ char linestr[term.col + 1];
+ const char *c = NULL,
+ *match = NULL;
+
+ 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 = 0; col < colend; ++col)
+ linestr[col] = term.line[row][col].u < 128 ? term.line[row][col].u : ' ';
+ linestr[col] = '\0';
+
+ if ((match = findlastany(linestr, URLSTRINGS,
+ sizeof(URLSTRINGS)/sizeof(URLSTRINGS[0]))))
+ break;
+
+ if (--row < 0)
+ row = term.row - 1;
+
+ colend = term.col;
+ };
+
+ if (match) {
+ size_t l = strspn(match, URLCHARS);
+ selstart(match - linestr, row, 0);
+ selextend(match - linestr + l - 1, row, SEL_REGULAR, 0);
+ selextend(match - linestr + l - 1, row, SEL_REGULAR, 1);
+ xsetsel(getsel());
+ xclipcopy();
+ }
+}
diff --git a/st.h b/st.h
index 519b9bd..0458005 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);
--
2.32.0
|
