[Pyparsing] How to use ~ / NotAny() combined with LineStart() ?

[Stephan Sahm]

Dear all,

I am new to pyparsing and have the following aim:
*I want to match every line which does NOT start with "ABC".*

I got so far, that I formed an expression which matches an arbitrary line:

from pyparsing import *

line = LineStart().leaveWhitespace() + restOfLine

key = Literal("ABC")


So here are my first guesses, what to try:


parser0 = ~key + line

parser1 = ~(LineStart() + key) + line


However they respond like follows:


string = """

ABC

ABC

foo ABC

ABC

foo"""


print parser0.searchString(string)

[['foo ABC'], ['foo']]

print parser1.searchString(string)

[[' ABC'], ['foo ABC'], ['ABC'], ['foo']]

parser0 also ignores " ABC", which should be matched however.

parser1 does good here, however does not ignore the second "ABC"


what do I have to do for such a basic task to work?

Any help is highly appreciated,


thanks in advance,

best,

Stephan