unexp_token

Description:

public void unexp_token (TokenType expected_token, string? identifier_spec, string? symbol_spec, string? symbol_name, string? message, bool is_error)

Outputs a message through the scanner's msg_handler, resulting from an unexpected token in the input stream.

Note that you should not call peek_next_token followed by unexp_token without an intermediate call to get_next_token, as unexp_token evaluates the scanner's current token (not the peeked token) to construct part of the message.

Parameters:

this	a Scanner
expected_token	the expected token
identifier_spec	a string describing how the scanner's user refers to identifiers (null defaults to "identifier"). This is used if `expected_token` is g_token_identifier or g_token_identifier_null.
symbol_spec	a string describing how the scanner's user refers to symbols (null defaults to "symbol"). This is used if `expected_token` is g_token_symbol or any token value greater than g_token_last.
symbol_name	the name of the symbol, if the scanner's current token is a symbol.
message	a message string to output at the end of the warning/error, or null.
is_error	if true it is output as an error. If false it is output as a warning.