Add <esc><ctrl-j> to toggle edit mode

Author: rocky

trepan/inout/input.py

@@ -37,9 +37,7 @@
 else:
     from trepan.inout.prompt_bindkeys import bindings, read_inputrc, read_init_file
 
-    USER_INPUTRC = os.environ.get(
-        "TREPAN3K_INPUTRC", default_configfile("inputrc")
-    )
+    USER_INPUTRC = os.environ.get("TREPAN3K_INPUTRC", default_configfile("inputrc"))
 
     read_inputrc(read_init_file, use_unicode=False)
     if osp.isfile(USER_INPUTRC):
@@ -56,17 +54,28 @@ class DebuggerUserInput(Mbase.DebuggerInputBase):
 
     def __init__(self, inp=None, opts=dict()):
 
-        self.edit_mode = opts.get("edit_mode", "emacs")
         if opts.get("readline") == "prompt_toolkit":
+
+            edit_mode = opts.get("edit_mode", "emacs")
             prompt_editing_mode = (
-                EditingMode.EMACS if self.edit_mode == "emacs" else EditingMode.VI
+                EditingMode.EMACS if edit_mode == "emacs" else EditingMode.VI
             )
             self.session = PromptSession(
                 editing_mode=prompt_editing_mode,
                 enable_history_search=True,
                 history=FileHistory(opts.get("histfile")),
                 key_bindings=bindings,
             )
+
+            @bindings.add("escape", "c-j")
+            def toggle_editmode(_):
+                self.session.editing_mode = (
+                    EditingMode.VI
+                    if self.session.editing_mode == EditingMode.EMACS
+                    else EditingMode.EMACS
+                )
+                print(f"\nedit mode is now {self.session.editing_mode}")
+
             self.input = self.session.input
             self.line_edit = True
             self.closed = False

trepan/inout/prompt_bindkeys.py

@@ -24,12 +24,12 @@
 
 
 import pathlib
+import re
 from prompt_toolkit.key_binding import KeyBindings
 from typing import Callable
 
 bindings = KeyBindings()
 
-
 def read_inputrc(read_init_file_fn: Callable, use_unicode: bool) -> None:
     """
     Read GNU Readline style inputrc for prompt_toolkit