How can I remove a lexer in qscintilla that I have set with.setLexer(lexer) if the user wants to go back to plain text? I have not found anything in the documentation. I'm using PyQt5 with Python3.
How to remove lexer in qscintilla
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I tried as @ekumoro replied in the comment above and it is working pretty fine.
https://scintilla.sourceforge.io/ScintillaDoc.html#SCI_SETLEXER