all the old tests pass... moving on

cli/src/gs_test_tokens.erl

@@ -116,11 +116,10 @@ tokstr_concat_test_() ->
 
 concat_property(FileName, FilePath) ->
     %?debugFmt("concat_property(~p, _)", [FileName]),
-    {ok, FileBytes} = file:read_file(FilePath),
-    FileChars = unicode:characters_to_nfc_list(FileBytes),
+    FileChars = gsc:very_stable_file(FilePath),
     {FileName ++ ": file = sum(tokens)",
      fun() ->
-        case gsc_tokenizer:tokens(FileChars) of
+        case gsc:tokens_from_file(FileChars) of
             {ok, SfcTokens} ->
                 ConcatStr = concat_token_strs(SfcTokens, []),
                 ?assertEqual(FileChars, ConcatStr);
@@ -139,13 +138,15 @@ div_test_() ->
     % divergence
     DivFiles = div_files(),
     %?debugFmt("DivFiles=~p", [DivFiles]),
-    {"claude tokenizer divergences fixed", [tokens_match(N, P) || {N, P} <- DivFiles]}.
+    {"claude tokenizer divergences fixed",
+     [tokens_match(N, P) || {N, P} <- DivFiles]}.
 
 tokens_match(FileName, FilePath) ->
     %?debugFmt("tokens_match(~p, _)", [FileName]),
     % extracting data to be tested
-    SoTokens = gsc_cli:so_tokens(FilePath),
-    SfTokens = gsc_cli:gso_tokens(FilePath),
+    % i hate this so much but lazy and this is test code so who really cares. 
+    SoTokens = so_tokens_from_file(FilePath),
+    SfTokens = gsc:gso_tokens_from_file(FilePath),
     {FileName ++ ": tokenizers_agree",
      fun() ->
           case {SoTokens, SfTokens} of
@@ -155,3 +156,10 @@ tokens_match(FileName, FilePath) ->
               {{error, _}, {ok, _}}    -> error("so_scan failed and gso_scan succeded")
           end
      end}.
+
+% that's right, we have to enter via converting the
+% bytes in the file to a list... lol
+so_tokens_from_file(F) ->
+    {ok, Bytes} = file:read_file(F),
+    S = binary_to_list(Bytes),
+    so_scan:scan(S).

cli/src/gsc_cli.erl

@@ -75,8 +75,35 @@ do(Args) ->
 
 do_doi() ->
     FP = zx:get_home() ++ "/priv/doi.txt",
-    Cmd = "less " ++ FP,
-    io:format("~s~n", [Cmd]).
+    page_file(FP).
+
+% thank you chatgpt
+% os:cmd didnt do nuffin because that's for running
+% stuff in the background and capturing the output, not
+% for taking over the screen
+page_file(FilePath) ->
+    Less = os:find_executable("less"),
+    case Less of
+        false -> cat_file(FilePath);
+        _     -> less_file(Less, FilePath)
+    end.
+
+cat_file(FilePath) ->
+    {ok, Bytes} = file:read_file(FilePath),
+    io:format("~ts", [Bytes]).
+
+less_file(Less, FilePath) ->
+    Port = open_port({spawn_executable, Less},
+                     [{args, [FilePath]},
+                      nouse_stdio, exit_status]),
+    receive
+        {Port, {exit_status, 0}} ->
+            ok;
+        {Port, {exit_status, N}} ->
+            error({less_exit_status, N});
+        {'EXIT', Port, Reason} ->
+            error(Reason)
+    end.
 
 do_tests() ->
     io:format("TestModules = ~p~n", [known_modules_with_prefix("ts")]),
@@ -134,7 +161,7 @@ do_eshell() ->
     end.
 
 tokenizers_agree(File) ->
-    so_tokens(File) =:= tokens(File).
+    gso_tokens(File) =:= so_tokens(File).
 
 
 do_tokens(FilePath) ->