STRUCTURED EDITING AND INCREMENTAL PARSING

Summary from the TLDR Web Dev newsletter

Structured editing is a method where code editors understand a program's syntax, offering benefits like instant feedback and accurate selections. Structured editors often restrict non-structural editing, which frustrates many programmers who frequently edit code in ways that violate its syntax. A solution to this is incremental parsing, which allows for both structured understanding and free-form editing by maintaining a parse tree in the background, even if the code becomes temporarily invalid.