However, trying to define a string with quotes instead of double quotes doesn't work

[Fxztam]

Hi,

I'm trying to use LARK as a search pattern engine for the given code and have to redefine a string with Quotes "'".

I'm using parser=lalr and lexer=contextual but I am not able to create a quoted separated string containing all rules to be ignored;

although the string is recognized, it is parsed, and a violation of a rule is recognized.

How can I define a quoted string so that all rules contained in it are ignored?

Thanks, Fried

[erezsh]

Sorry, but I don't understand at all what you're asking. Try to include a code example.

[Fxztam]

If I understand correctly, a string terminal in Lark is defined with double quotes. However, my Lark-built code handler for a given grammar requires the string as a quote definition; any characters and rules should be ignored in '....bla.bla...rule(1)..rule(n)..' and i.e. everything must be ignored in quotes-separated strings (no lexing & parsing).

I am going to build an extracted example for this where in my string definition Lark parses the string content.

Thanks, Fried

[Fxztam]

I have in my example to use the newly defined quoted-string '. any char or any rules ..'
to ignore the included content means no parsing of the quoted string e.g.

see in the example line 59 :

x:= '#+*()/&!"§$%&/()=? select a into ' ;

that brings me to:

` raise UnexpectedToken(token, expected, state=self, interactive_parser=None) lark.exceptions.UnexpectedToken: Unexpected token Token('INTO', 'into') at line 4, column 54. Expected one of:

• QUOTE
• __ANON_0
• SEMICOLON
• SYMBOLS__ `

How can I define the quoted string so that its content is not parsed?

Thanks, Fried

[erezsh]

Look at how strings are defined in the python grammar: https://github.com/lark-parser/lark/blob/master/lark/grammars/python.lark#L284C26-L284C26

Any reason that you can't use this approach?

[Fxztam]

Yes, of course, the string definition in the Python grammar works very well!

Thank you very much, Fried

[erezsh]

Great!