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Pattern for mode in multimode lexer #1999
Description
I'm sure this is quite simple, but I have a mode that should start with @{ and end with }@, and should accept anything else inside including }. My tokens are as below. How would I define the pattern for my Gate token ?
const EnterGate = createToken({
name: "EnterGate",
pattern: /@{/
push_mode: "gate_mode"
});
const ExitGate = createToken({
name: "ExitGate",
pattern: /}@/
pop_mode: true
});
const Gate = createToken({
name: "Gate",
pattern: ??
});
Activity
msujew commentedon Nov 16, 2023
You can probably use something like
(?:(?!}@).)*. It uses a negative lookahead group (?!) to prevent matching}@and then attempts to match any character.. This is repeating until it arrives at the end of the input or the}@sequence.