endbasic 0.2.0

The EndBASIC programming language
Documentation 
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' EndBASIC
' Copyright 2020 Julio Merino
'
' Licensed under the Apache License, Version 2.0 (the "License"); you may not
' use this file except in compliance with the License.  You may obtain a copy
' of the License at:
'
'     http://www.apache.org/licenses/LICENSE-2.0
'
' Unless required by applicable law or agreed to in writing, software
' distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
' WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
' License for the specific language governing permissions and limitations
' under the License.

' Interactive session editing a program.

EDIT ' Store the program until we get an empty line.
PRINT "Hello!"
PRINT "Good bye."

LIST
RUN

RENUM ' No-op renumbering.
LIST

EDIT 20 ' Edit a single line (ensuring editing stops at that line).
PRINT "Not yet"
PRINT "This is not part of the program"

EDIT 5 ' Insert an intermediate line.
PRINT "Pre-hello"
EDIT 15 ' Insert an intermediate line.
PRINT "Interlude"
EDIT 25 ' Insert an intermediate line.
PRINT "Leaving"
LIST
RENUM ' Make all numbers multiples of ten.
LIST

EDIT ' Append non-blank lines to the program.
PRINT "One more thing"
PRINT "Maybe not"

LIST

EDIT 30 ' Delete an existing line.

LIST
RENUM
LIST
RUN

NEW ' Reset the program.
LIST
EDIT ' Add an invalid line in-between valid ones.
PRINT "before"
THIS IS INVALID
PRINT "after"

RUN
PRINT "Did not abort on RUN error!"