Add support for iso14755 - st - Personal fork of st
 (HTM) git clone git://git.drkhsh.at/st.git
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       ---
 (DIR) commit 68bae9c7b121e30114f6b0cabe15da3fae46e673
 (DIR) parent 331033f1f6abe259218666e6f6a848f38d884078
 (HTM) Author: Quentin Rameau <quinq@fifth.space>
       Date:   Sat,  8 Oct 2016 16:22:18 +0200
       
       Add support for iso14755
       
       We launch dmenu for getting a codepoint, then convert it and send it to
       the terminal.
       
       Diffstat:
         M config.def.h                        |       1 +
         M st.c                                |      28 ++++++++++++++++++++++++++++
       
       2 files changed, 29 insertions(+), 0 deletions(-)
       ---
 (DIR) diff --git a/config.def.h b/config.def.h
       @@ -172,6 +172,7 @@ static Shortcut shortcuts[] = {
                { MODKEY|ShiftMask,     XK_C,           clipcopy,       {.i =  0} },
                { MODKEY|ShiftMask,     XK_V,           clippaste,      {.i =  0} },
                { MODKEY,               XK_Num_Lock,    numlock,        {.i =  0} },
       +        { MODKEY,               XK_Control_L,   iso14755,       {.i =  0} },
        };
        
        /*
 (DIR) diff --git a/st.c b/st.c
       @@ -66,6 +66,7 @@ char *argv0;
        #define MIN(a, b)                ((a) < (b) ? (a) : (b))
        #define MAX(a, b)                ((a) < (b) ? (b) : (a))
        #define LEN(a)                        (sizeof(a) / sizeof(a)[0])
       +#define NUMMAXLEN(x)                ((int)(sizeof(x) * 2.56 + 0.5) + 1)
        #define DEFAULT(a, b)                (a) = (a) ? (a) : (b)
        #define BETWEEN(x, a, b)        ((a) <= (x) && (x) <= (b))
        #define DIVCEIL(n, d)                (((n) + ((d) - 1)) / (d))
       @@ -87,6 +88,8 @@ char *argv0;
        #define TRUEGREEN(x)                (((x) & 0xff00))
        #define TRUEBLUE(x)                (((x) & 0xff) << 8)
        
       +/* constants */
       +#define ISO14755CMD                "dmenu -w %lu -p codepoint: </dev/null"
        
        enum glyph_attribute {
                ATTR_NULL       = 0,
       @@ -338,6 +341,7 @@ static void xzoomabs(const Arg *);
        static void xzoomreset(const Arg *);
        static void printsel(const Arg *);
        static void printscreen(const Arg *) ;
       +static void iso14755(const Arg *);
        static void toggleprinter(const Arg *);
        static void sendbreak(const Arg *);
        
       @@ -2633,6 +2637,30 @@ tprinter(char *s, size_t len)
        }
        
        void
       +iso14755(const Arg *arg)
       +{
       +        char cmd[sizeof(ISO14755CMD) + NUMMAXLEN(xw.win)];
       +        FILE *p;
       +        char *us, *e, codepoint[9], uc[UTF_SIZ];
       +        unsigned long utf32;
       +
       +        snprintf(cmd, sizeof(cmd), ISO14755CMD, xw.win);
       +        if (!(p = popen(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;
       +
       +        ttysend(uc, utf8encode(utf32, uc));
       +}
       +
       +void
        toggleprinter(const Arg *arg)
        {
                term.mode ^= MODE_PRINT;