Make aliases smarter

2 files changed, 47 insertions, 10 deletions

diff --git a/src/commands.c b/src/commands.c
index ca40244..3808929 100644
--- a/src/commands.c
+++ b/src/commands.c
@@ -1,12 +1,41 @@
 #include "commands.h"
 #include "list.h"
 
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+
 struct command {
   char* command;
   void (*handler)(struct list *args, const char *argstr, void *data);
   char* alias;
 };
 
+static char *join_str_list(struct list *list, const char *sep, size_t start)
+{
+  size_t len = 0;
+  size_t cap = 512;
+  char *buf = malloc(cap);
+  buf[0] = 0;
+
+  size_t sep_len = strlen(sep);
+  for (size_t i = start; i < list->len; ++i) {
+    size_t item_len = strlen(list->items[i]);
+    if (len + item_len + sep_len >= cap) {
+      cap *= 2;
+      buf = realloc(buf, cap);
+      assert(buf);
+    }
+
+    strncat(buf, list->items[i], cap);
+    len += item_len;
+
+    strncat(buf, sep, cap);
+    len += sep_len;
+  }
+  return buf;
+}
+
 struct imv_commands *imv_commands_create(void)
 {
   struct imv_commands *cmds = malloc(sizeof *cmds);
@@ -61,7 +90,13 @@ int imv_command_exec(struct imv_commands *cmds, const char *command, void *data)
           cmd->handler(args, argstr, data);
           ret = 0;
         } else if(cmd->alias) {
-          ret = imv_command_exec(cmds, cmd->alias, data);
+          char *new_args = join_str_list(args, " ", 1);
+          size_t cmd_len = strlen(cmd->alias) + 1 + strlen(new_args) + 1;
+          char *new_cmd = malloc(cmd_len);
+          snprintf(new_cmd, cmd_len, "%s %s", cmd->alias, new_args);
+          ret = imv_command_exec(cmds, new_cmd, data);
+          free(new_args);
+          free(new_cmd);
         }
         break;
       }
diff --git a/src/imv.c b/src/imv.c
index d0467eb..40831fb 100644
--- a/src/imv.c
+++ b/src/imv.c
@@ -510,18 +510,12 @@ struct imv *imv_create(void)
   );
 
   imv_command_register(imv->commands, "quit", &command_quit);
-  imv_command_register(imv->commands, "q", &command_quit);
   imv_command_register(imv->commands, "pan", &command_pan);
   imv_command_register(imv->commands, "next", &command_next);
-  imv_command_register(imv->commands, "n", &command_next);
   imv_command_register(imv->commands, "prev", &command_prev);
-  imv_command_register(imv->commands, "p", &command_prev);
   imv_command_register(imv->commands, "goto", &command_goto);
-  imv_command_register(imv->commands, "g", &command_goto);
   imv_command_register(imv->commands, "zoom", &command_zoom);
-  imv_command_register(imv->commands, "z", &command_zoom);
   imv_command_register(imv->commands, "open", &command_open);
-  imv_command_register(imv->commands, "o", &command_open);
   imv_command_register(imv->commands, "close", &command_close);
   imv_command_register(imv->commands, "fullscreen", &command_fullscreen);
   imv_command_register(imv->commands, "overlay", &command_overlay);
@@ -533,7 +527,15 @@ struct imv *imv_create(void)
   imv_command_register(imv->commands, "scaling", &command_set_scaling_mode);
   imv_command_register(imv->commands, "slideshow", &command_set_slideshow_duration);
   imv_command_register(imv->commands, "background", &command_set_background);
-  imv_command_register(imv->commands, "bg", &command_set_background);
+
+  imv_command_alias(imv->commands, "q", "quit");
+  imv_command_alias(imv->commands, "n", "next");
+  imv_command_alias(imv->commands, "p", "prev");
+  imv_command_alias(imv->commands, "g", "goto");
+  imv_command_alias(imv->commands, "z", "zoom");
+  imv_command_alias(imv->commands, "o", "open");
+  imv_command_alias(imv->commands, "bg", "background");
+  imv_command_alias(imv->commands, "ss", "slideshow");
 
   add_bind(imv, "q", "quit");
   add_bind(imv, "<Left>", "prev");
@@ -563,8 +565,8 @@ struct imv *imv_create(void)
   add_bind(imv, "r", "reset");
   add_bind(imv, "<period>", "next_frame");
   add_bind(imv, "<space>", "toggle_playing");
-  add_bind(imv, "t", "slideshow_duration +1");
-  add_bind(imv, "<Shift+T>", "slideshow_duration -1");
+  add_bind(imv, "t", "slideshow +1");
+  add_bind(imv, "<Shift+T>", "slideshow -1");
 
   return imv;
 }