st

commit 3621dc8c07e6b2b2ea0ce5a5dc5edabf9c783ba3
parent a1c24d0c82e4af05bcb290cbe86216452ebf1faa
Author: Natasha Kerensikova <natacha@instinctive.eu>
Date:   Sun, 19 Feb 2023 10:42:23 +0100

[nat] ISO 14755

Diffstat:
M
config.def.h
 | 
6
++++++
M
st.1
 | 
4
++++
M
st.c
 | 
22
++++++++++++++++++++++
M
st.h
 | 
2
++

4 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/config.def.h b/config.def.h
@@ -171,6 +171,11 @@ static unsigned int defaultattr = 11;
 static uint forcemousemod = ShiftMask;
 
 /*
+ * Command used to query unicode glyphs.
+ */
+char *iso14755_cmd = "dmenu -w \"$WINDOWID\" -p codepoint: </dev/null";
+
+/*
  * Internal mouse shortcuts.
  * Beware that overloading Button1 will disable the selection.
  */
@@ -201,6 +206,7 @@ static Shortcut shortcuts[] = {
 	{ TERMMOD,              XK_Y,           selpaste,       {.i =  0} },
 	{ ShiftMask,            XK_Insert,      selpaste,       {.i =  0} },
 	{ TERMMOD,              XK_Num_Lock,    numlock,        {.i =  0} },
+	{ TERMMOD,              XK_I,           iso14755,       {.i =  0} },
 };
 
 /*
diff --git a/st.1 b/st.1
@@ -159,6 +159,10 @@ Copy the selected text to the clipboard selection.
 .TP
 .B Ctrl-Shift-v
 Paste from the clipboard selection.
+.TP
+.B Ctrl-Shift-i
+Launch dmenu to enter a unicode codepoint and send the corresponding glyph
+to st.
 .SH CUSTOMIZATION
 .B st
 can be customized by creating a custom config.h and (re)compiling the source
diff --git a/st.c b/st.c
@@ -2048,6 +2048,28 @@ tprinter(char *s, size_t len)
 }
 
 void
+iso14755(const Arg *arg)
+{
+	FILE *p;
+	char *us, *e, codepoint[9], uc[UTF_SIZ];
+	unsigned long utf32;
+
+	if (!(p = popen(iso14755_cmd, "r")))
+		return;
+
+	us = fgets(codepoint, sizeof(codepoint), p);
+	pclose(p);
+
+	if (!us || *us == '\0' || *us == '-' || strlen(us) > 7)
+		return;
+	if ((utf32 = strtoul(us, &e, 16)) == ULONG_MAX ||
+	    (*e != '\n' && *e != '\0'))
+		return;
+
+	ttywrite(uc, utf8encode(utf32, uc), 1);
+}
+
+void
 toggleprinter(const Arg *arg)
 {
 	term.mode ^= MODE_PRINT;
diff --git a/st.h b/st.h
@@ -81,6 +81,7 @@ void die(const char *, ...);
 void redraw(void);
 void draw(void);
 
+void iso14755(const Arg *);
 void printscreen(const Arg *);
 void printsel(const Arg *);
 void sendbreak(const Arg *);
@@ -124,3 +125,4 @@ extern unsigned int tabspaces;
 extern unsigned int defaultfg;
 extern unsigned int defaultbg;
 extern unsigned int defaultcs;
+extern char *iso14755_cmd;