st-copyurl-20220221-0.8.5.diff - sites - public wiki contents of suckless.org
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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 <inz@inz.fi>
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 = 0} },
20 { ShiftMask, XK_Insert, selpaste, {.i = 0} },
21 { TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
22 + { MODKEY, XK_l, copyurl, {.i = 0} },
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])) == 0) {
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 url).
62 +**
63 +** FIXME: doesn't handle urls that span multiple lines; will need to add support
64 +** for multiline "getsel()" first
65 +*/
66 +void
67 +copyurl(const Arg *arg) {
68 + /* () and [] can appear in urls, but excluding them here will reduce false
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 ? term.line[row][col].u : ' ';
102 + linestr[col] = '\0';
103 +
104 + if ((match = findlastany(linestr, URLSTRINGS,
105 + sizeof(URLSTRINGS)/sizeof(URLSTRINGS[0]))))
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