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	st-copyurl-20220221-0.8.5.diff (3868B)
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	1 From 897c3958d01d8df80ebf1666b972b8a658b419ba Mon Sep 17 00:00:00 2001
	2 From: Santtu Lakkala <[email protected]>
	3 Date: Wed, 16 Feb 2022 20:34:20 +0200
	4 Subject: [PATCH] Loop through urls on screen and copy to clipboard
	5
	6 Based on the previous highlighting patches, slightly simplified and
	7 fixes graphical issues with mixed copyurl and selection.
	8 ---
	9 config.def.h \| 1 +
	10 st.c \| 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++
	11 st.h \| 1 +
	12 3 files changed, 84 insertions(+)
	13
	14 diff --git a/config.def.h b/config.def.h
	15 index 91ab8ca..3f365c7 100644
	16 --- a/config.def.h
	17 +++ b/config.def.h
	18 @@ -201,6 +201,7 @@ static Shortcut shortcuts[] = {
	19 { TERMMOD, XK_Y, selpaste, {.i = …
	20 { ShiftMask, XK_Insert, selpaste, {.i = …
	21 { TERMMOD, XK_Num_Lock, numlock, {.i = …
	22 + { MODKEY, XK_l, copyurl, {.i = …
	23 };
	24
	25 /*
	26 diff --git a/st.c b/st.c
	27 index 51049ba..bf3d81a 100644
	28 --- a/st.c
	29 +++ b/st.c
	30 @@ -200,6 +200,7 @@ static void tdefutf8(char);
	31 static int32_t tdefcolor(const int , int , int);
	32 static void tdeftran(char);
	33 static void tstrsequence(uchar);
	34 +static const char findlastany(const char , const char**, size_t);
	35
	36 static void drawregion(int, int, int, int);
	37
	38 @@ -2688,3 +2689,84 @@ redraw(void)
	39 tfulldirt();
	40 draw();
	41 }
	42 +
	43 +const char *
	44 +findlastany(const char str, const char*find, size_t len)
	45 +{
	46 + const char *found = NULL;
	47 + int i = 0;
	48 +
	49 + for (found = str + strlen(str) - 1; found >= str; --found) {
	50 + for(i = 0; i < len; i++) {
	51 + if (strncmp(found, find[i], strlen(find[i])) ==…
	52 + return found;
	53 + }
	54 + }
	55 + }
	56 +
	57 + return NULL;
	58 +}
	59 +
	60 +/*
	61 +** Select and copy the previous url on screen (do nothing if there's no…
	62 +**
	63 +** FIXME: doesn't handle urls that span multiple lines; will need to ad…
	64 +** for multiline "getsel()" first
	65 +*/
	66 +void
	67 +copyurl(const Arg *arg) {
	68 + /* () and [] can appear in urls, but excluding them here will r…
	69 + * positives when figuring out where a given url ends.
	70 + */
	71 + static const char URLCHARS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	72 + "abcdefghijklmnopqrstuvwxyz"
	73 + "0123456789-._~:/?#@!$&'*+,;=%";
	74 +
	75 + static const char* URLSTRINGS[] = {"http://", "https://"};
	76 +
	77 + int row = 0, /* row of current URL */
	78 + col = 0, /* column of current URL start */
	79 + colend = 0, /* column of last occurrence */
	80 + passes = 0; /* how many rows have been scanned */
	81 +
	82 + char linestr[term.col + 1];
	83 + const char *c = NULL,
	84 + *match = NULL;
	85 +
	86 + row = (sel.ob.x >= 0 && sel.nb.y > 0) ? sel.nb.y : term.bot;
	87 + LIMIT(row, term.top, term.bot);
	88 +
	89 + colend = (sel.ob.x >= 0 && sel.nb.y > 0) ? sel.nb.x : term.col;
	90 + LIMIT(colend, 0, term.col);
	91 +
	92 + /*
	93 + ** Scan from (term.row - 1,term.col - 1) to (0,0) and find
	94 + ** next occurrance of a URL
	95 + */
	96 + for (passes = 0; passes < term.row; passes++) {
	97 + /* Read in each column of every row until
	98 + ** we hit previous occurrence of URL
	99 + */
	100 + for (col = 0; col < colend; ++col)
	101 + linestr[col] = term.line[row][col].u < 128 ? te…
	102 + linestr[col] = '\0';
	103 +
	104 + if ((match = findlastany(linestr, URLSTRINGS,
	105 + sizeof(URLSTRINGS)/size…
	106 + break;
	107 +
	108 + if (--row < 0)
	109 + row = term.row - 1;
	110 +
	111 + colend = term.col;
	112 + };
	113 +
	114 + if (match) {
	115 + size_t l = strspn(match, URLCHARS);
	116 + selstart(match - linestr, row, 0);
	117 + selextend(match - linestr + l - 1, row, SEL_REGULAR, 0);
	118 + selextend(match - linestr + l - 1, row, SEL_REGULAR, 1);
	119 + xsetsel(getsel());
	120 + xclipcopy();
	121 + }
	122 +}
	123 diff --git a/st.h b/st.h
	124 index 519b9bd..0458005 100644
	125 --- a/st.h
	126 +++ b/st.h
	127 @@ -85,6 +85,7 @@ void printscreen(const Arg *);
	128 void printsel(const Arg *);
	129 void sendbreak(const Arg *);
	130 void toggleprinter(const Arg *);
	131 +void copyurl(const Arg *);
	132
	133 int tattrset(int);
	134 void tnew(int, int);
	135 --
	136 2.32.0
	137