Parsing Oracle text into a typed AST
·1 min
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The front end turns raw Oracle text into a typed abstract syntax tree:
flowchart LR
A[Oracle text] --> B[Lexer]
B --> C[Tokens]
C --> D[Parser]
D --> E[Typed AST]
Each stage gets its own treatment: how the lexer handles reminder text and mana symbols, and how the grammar copes with the long tail of one-off templating while still producing a well-typed tree.