Implement a basic keybinding collision checker. (ToDo list #337) (#348)

diff --git a/src/nnn.c b/src/nnn.c
index 8c8ee0bb0564bea0492b98b7763f0a39442ec3d0..9509661a67975410ecea5eb64593fb0d582dbb59 100644 (file)
--- a/src/nnn.c
+++ b/src/nnn.c
@@ -4671,6 +4671,22 @@ nochange:
        }
 }
 
+static void check_keybinding_collision(void)
+{
+       unsigned long i;
+       bool bitmap[KEY_MAX] = {FALSE};
+
+       for (i = 0; i < sizeof(bindings) / sizeof(struct key); ++i) {
+               int curr_sym = bindings[i].sym;
+
+               if (bitmap[curr_sym])
+                       fprintf(stdout,
+                               "Collision of key %s detected\n", keyname(curr_sym));
+               else
+                       bitmap[curr_sym] = TRUE;
+       }
+}
+
 static void usage(void)
 {
        fprintf(stdout,
@@ -4685,6 +4701,7 @@ static void usage(void)
                " -d      detail mode\n"
                " -f      run filter as cmd on prompt key\n"
                " -H      show hidden files\n"
+               " -K      test for keybinding collision\n"
                " -i      nav-as-you-type mode\n"
                " -n      version sort\n"
                " -o      open files on Enter\n"
@@ -4828,7 +4845,7 @@ int main(int argc, char *argv[])
        bool progress = FALSE;
 #endif
 
-       while ((opt = getopt(argc, argv, "HSiab:cdfnop:rstvh")) != -1) {
+       while ((opt = getopt(argc, argv, "HSKiab:cdfnop:rstvh")) != -1) {
                switch (opt) {
                case 'S':
                        cfg.blkorder = 1;
@@ -4891,6 +4908,9 @@ int main(int argc, char *argv[])
                case 't':
                        cfg.autoselect = 0;
                        break;
+               case 'K':
+                       check_keybinding_collision();
+                       return _SUCCESS;
                case 'v':
                        fprintf(stdout, "%s\n", VERSION);
                        return _SUCCESS;