ncreader: allow NCREADER_OPTION_HORSCROLL #839

doc/man/man3/notcurses_init.3.md

@@ -40,11 +40,11 @@ typedef struct notcurses_options {
 } notcurses_options;
 ```
 
-**int notcurses_lex_margins(const char* op, notcurses_options* opts);**
+**struct notcurses* notcurses_init(const notcurses_options* opts, FILE* fp);**
 
 **void notcurses_version_components(int* major, int* minor, int* patch, int* tweak);**
 
-**struct notcurses* notcurses_init(const notcurses_options* opts, FILE* fp);**
+**int notcurses_lex_margins(const char* op, notcurses_options* opts);**
 
 **int notcurses_cursor_enable(struct notcurses* nc, int y, int x);**
 

src/lib/reader.c

@@ -2,10 +2,12 @@
 
 ncreader* ncreader_create(ncplane* n, int y, int x, const ncreader_options* opts){
   if(opts->physrows <= 0 || opts->physcols <= 0){
+    logerror(n->nc, "Provided illegal geometry %dx%d\n", opts->physcols, opts->physrows);
     return NULL;
   }
-  if(opts->flags){
-    return NULL; // FIXME none yet handled
+  if(opts->flags > NCREADER_OPTION_HORSCROLL){
+    logerror(n->nc, "Provided unsupported flags %016lx\n", opts->flags);
+    return NULL;
   }
   ncreader* nr = malloc(sizeof(*nr));
   if(nr){