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return lexer error for unknown characters #3

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opened 2023-06-03 19:44:07 -04:00 by josh · 1 comment
josh commented 2023-06-03 19:44:07 -04:00
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Currently the lexer hits an infinite loop when an unknown character is seen. Fix this and return a lexer error.

Currently the lexer hits an infinite loop when an unknown character is seen. Fix this and return a lexer error.
josh commented 2023-06-03 20:17:26 -04:00
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A complication here is that internal helper functions like find_longest_match() and transition() can have multiple result types, each specific to the individual function. I need to come up with a better way to represent these function return statuses, preferably avoiding exceptions.

A complication here is that internal helper functions like find_longest_match() and transition() can have multiple result types, each specific to the individual function. I need to come up with a better way to represent these function return statuses, preferably avoiding exceptions.
josh closed this issue 2023-07-08 10:37:23 -04:00
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Reference: josh/propane#3