CE Implement positional arguments

ce/ce.c

@@ -8,6 +8,7 @@
 #include <in_gb.h>
 #include <in_input.h>
 #include <malloc.h>
+#include <minmax.h>
 #include <mprintf.h>
 #include <path.h>
 #include <printf.h>
@@ -77,8 +78,23 @@ static bool split_lines_cb (void* ctx, const char* start, size_t len) {
   return true;
 }
 
+static bool split_args_cb (void* ctx, const char* start, size_t len) {
+  (void)ctx;
+
+  if (posvar_count >= POSVAR_MAX)
+    return false;
+
+  struct posvar* posvar = &posvars[posvar_count++];
+  memset (posvar, 0, sizeof (*posvar));
+
+  memcpy (posvar->buf, start, min (len, sizeof (posvar->buf) - 1));
+
+  return true;
+}
+
 void app_main (void) {
   char scriptpathbuf[PATH_MAX];
+  char posvarsbuf[2048];
   char line[1024];
 
   memset (scriptpathbuf, 0, sizeof (scriptpathbuf));
@@ -87,6 +103,10 @@ void app_main (void) {
   if (has_script == ST_OK) {
     interactive_mode = false;
 
+    if (env_get (process_get_pgid (), "args", (void*)posvarsbuf, sizeof (posvarsbuf)) == ST_OK) {
+      strtokenize (posvarsbuf, ' ', NULL, &split_args_cb);
+    }
+
     char volume[VOLUME_MAX];
     const char* path;
     int ret;