fix history, start cleaning up API

src/fenrir/commands/onScreenUpdate/60000-history.py

@@ -0,0 +1,54 @@
+#!/bin/python
+# -*- coding: utf-8 -*-
+
+# Fenrir TTY screen reader
+# By Chrys, Storm Dragon, and contributers.
+
+from core import debug
+
+class command():
+    def __init__(self):
+        pass
+    def initialize(self, environment):
+        self.env = environment
+    def shutdown(self):
+        pass
+    def getDescription(self):
+        return ''        
+
+    def run(self):
+        if self.env['screen']['newAttribDelta'] != '':
+            return  
+        if self.env['runtime']['screenManager'].isScreenChange():
+            return
+        if self.env['runtime']['cursorManager'].isCursorVerticalMove():
+            return
+        if not (self.env['runtime']['inputManager'].getLastDeepestInput() in [['KEY_UP'],['KEY_DOWN']]):
+            return            
+        prevLine = self.env['screen']['oldContentText'].split('\n')[self.env['screen']['newCursor']['y']]
+        currLine = self.env['screen']['newContentText'].split('\n')[self.env['screen']['newCursor']['y']]
+        if not currLine.isspace():
+            currPrompt = currLine.find('$')
+            rootPrompt = currLine.find('#')
+            if currPrompt <= 0:
+                if rootPrompt > 0:
+                    currPrompt = rootPrompt
+                else:
+                    announce = currLine            
+            if currPrompt > 0:
+                remove_digits = str.maketrans('0123456789', '          ')
+                if prevLine[:currPrompt].translate(remove_digits) == currLine[:currPrompt].translate(remove_digits):
+                    announce = currLine[currPrompt+1:]
+                else:
+                    announce = currLine                      
+
+        if currLine.isspace():
+            self.env['runtime']['outputManager'].presentText(_("blank"), soundIcon='EmptyLine', interrupt=True, flush=False)
+        else:            
+            self.env['runtime']['outputManager'].presentText(announce, interrupt=True, flush=False)
+        self.env['commandsIgnore']['onScreenUpdate']['CHAR_DELETE_ECHO'] = True
+        self.env['commandsIgnore']['onScreenUpdate']['CHAR_ECHO'] = True
+        self.env['commandsIgnore']['onScreenUpdate']['INCOMING_IGNORE'] = True
+    def setCallback(self, callback):
+        pass
+