Parse tree
A parse tree is a hierarchical representation of the syntactic structure derived by parsing an expression, program, or structured document.
Building User-Friendly DSLs
A tree-shaped representation of the syntactic structure recognized while parsing text.
- How it is used
- Connects textual DSL parsing to structured data and downstream language services.
- How deep it goes
- Defines parse-tree production and its possible AST transformation, but leaves the transformation design as an exercise.
- Examples
- Uses a textual Rental record and an EBNF grammar covering attributes, types, values, and initial values.
- What you can do after
- Evaluate how textual DSL content becomes an AST that supports editor language services.
Fabulous Adventures in Data Structures and Algorithms
A parse tree is a tree that represents the syntactic structure derived by parsing a source-language expression or program.
- How it is used
- Structures parsed source expressions for subsequent formatting and other language-processing operations.
- How deep it goes
- Defines an immutable expression hierarchy and its design rationale, but defers parsing mechanics and detailed visitor implementation.
- Examples
- Uses Foo.Bar((x + y.z) * q, A.B.C) and C# records for identifiers, operators, member access, parentheses, and calls.
- What you can do after
- Build it from scratch as an immutable C# expression hierarchy for downstream source transformations.
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Related concepts
- Documentproduces · A discrete representation of information, such as content or a structured record, optionally accompanied by metadata.
- parserproduced by · A parser is a software component or algorithm that analyzes input according to a grammar or format to identify its structure, often producing a structured representation or reporting errors.
- parsingproduced by · Parsing is the analysis of input according to structural or syntactic rules to identify its components and produce a structured, usable representation.
- Beautiful Soupproduced by · Beautiful Soup is a Python library for parsing HTML and XML documents, navigating their parsed structures, and extracting or modifying their contents.
- visitor design patternaddressed by · The Visitor pattern separates operations on an object structure into visitor objects, allowing operations to be added without changing the structure’s element classes.
- immutable collectionimplements · An immutable collection is a collection whose membership and contents cannot be changed after creation.
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