From: Daniel Liu Date: Thu, 15 Oct 2020 21:51:30 +0000 (-0400) Subject: applied reject no match patch X-Git-Url: https://git.danieliu.xyz/?a=commitdiff_plain;p=dmenu.git applied reject no match patch --- diff --git a/dmenu.1 b/dmenu.1 index c036baa..10d968f 100644 --- a/dmenu.1 +++ b/dmenu.1 @@ -3,7 +3,7 @@ dmenu \- dynamic menu .SH SYNOPSIS .B dmenu -.RB [ \-bfiv ] +.RB [ \-bfirv ] .RB [ \-l .IR lines ] .RB [ \-m @@ -50,6 +50,9 @@ is faster, but will lock up X until stdin reaches end\-of\-file. .B \-i dmenu matches menu items case insensitively. .TP +.B \-r +dmenu will reject any input which would result in no matching option left. +.TP .BI \-l " lines" dmenu lists items vertically, with the given number of lines. .TP diff --git a/dmenu.c b/dmenu.c index 3f8f689..9a965e1 100644 --- a/dmenu.c +++ b/dmenu.c @@ -40,6 +40,7 @@ static char *embed; static int bh, mw, mh; static int inputw = 0, promptw; static int lrpad; /* sum of left and right padding */ +static int reject_no_match = 0; static size_t cursor; static struct item *items = NULL; static struct item *matches, *matchend; @@ -283,12 +284,26 @@ insert(const char *str, ssize_t n) { if (strlen(text) + n > sizeof text - 1) return; + + static char last[BUFSIZ] = ""; + if(reject_no_match) { + /* store last text value in case we need to revert it */ + memcpy(last, text, BUFSIZ); + } + /* move existing text out of the way, insert new text, and update cursor */ memmove(&text[cursor + n], &text[cursor], sizeof text - cursor - MAX(n, 0)); if (n > 0) memcpy(&text[cursor], str, n); cursor += n; match(); + + if(!matches && reject_no_match) { + /* revert to last text value if theres no match */ + memcpy(text, last, BUFSIZ); + cursor -= n; + match(); + } } static size_t @@ -723,7 +738,7 @@ setup(void) static void usage(void) { - fputs("usage: dmenu [-bfiv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n" + fputs("usage: dmenu [-bfirv] [-l lines] [-p prompt] [-fn font] [-m monitor]\n" " [-nb color] [-nf color] [-sb color] [-sf color] [-w windowid]\n", stderr); exit(1); } @@ -783,7 +798,9 @@ main(int argc, char *argv[]) else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */ fstrncmp = strncasecmp; fstrstr = cistrstr; - } else if (i + 1 == argc) + } else if (!strcmp(argv[i], "-r")) /* reject input which results in no match */ + reject_no_match = 1; + else if (i + 1 == argc) usage(); /* these options take one argument */ else if (!strcmp(argv[i], "-l")) /* number of lines in vertical list */