tignore prompt if it is empty in addition to NULL - dmenu - Dmenu fork with xft fonts.
 (HTM) git clone git://r-36.net/dmenu
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       ---
 (DIR) commit 1299e41447fe5850d127857a68f37c5badd491ce
 (DIR) parent 38fccafada4eee3e4e0301d7c6eadd3c5788b305
 (HTM) Author: Moritz Wilhelmy <moritz+hg@wzff.de>
       Date:   Tue, 15 May 2012 11:47:54 +0200
       
       ignore prompt if it is empty in addition to NULL
       Diffstat:
         dmenu.c                             |       4 ++--
       
       1 file changed, 2 insertions(+), 2 deletions(-)
       ---
 (DIR) diff --git a/dmenu.c b/dmenu.c
       t@@ -169,7 +169,7 @@ drawmenu(void) {
                dc->h = bh;
                drawrect(dc, 0, 0, mw, mh, True, BG(dc, normcol));
        
       -        if(prompt) {
       +        if(prompt && *prompt) {
                        dc->w = promptw;
                        drawtext(dc, prompt, selcol);
                        dc->x = dc->w;
       t@@ -579,7 +579,7 @@ setup(void) {
                        y = topbar ? 0 : DisplayHeight(dc->dpy, screen) - mh;
                        mw = DisplayWidth(dc->dpy, screen);
                }
       -        promptw = prompt ? textw(dc, prompt) : 0;
       +        promptw = (prompt && *prompt) ? textw(dc, prompt) : 0;
                inputw = MIN(inputw, mw/3);
                match();