ctangle

E424603

ctangle is a CWEB tool that converts literate CWEB source files into compilable C code by extracting and tangling the program fragments.

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All labels observed (1)

Label Occurrences
ctangle canonical 1

Statements (44)

Predicate Object
instanceOf CWEB tool
software tool
tangler
associatedWith cweave
buildRequirement C compiler to build ctangle itself
category code generation tool
literate programming tool
creator Donald E. Knuth
Silvio Levy
developedFor C
surface form: C programming language
distribution TeX-related software collections
distributionForm source code
documentation CWEB user manual
documentationToolRole separates documentation from compilable code
executionEnvironment command shell
historicalContext successor to WEB’s tangle for C
implementsParadigm literate programming
inputFormat CWEB source file
invocationMethod command-line program
license Knuth license
maintainer Donald E. Knuth
notableFeature orders code fragments according to program structure
supports change files for program modification
operatingSystem Unix-like systems
Windows
macOS
outputFormat C source file
packagedWith CWEB distribution
partOf CWEB literate programming system
surface form: CWEB
primaryFunction convert CWEB source to compilable C code
extract program fragments from CWEB files
tangle literate CWEB source into implementation order
programmingLanguage C
relatedConcept WEB
tangle
weave
supports change files
targetAudience C programmers
users of literate programming
textProcessing ignores typesetting commands for code output
typicalFileExtensionInput .w
typicalFileExtensionOutput .c
usedWith C compiler
workflowRole build step before compilation

How these facts were elicited

The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.

Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10.

# Requirements
- If you don't know the subject at all, return an empty list.
- If the subject is not a named entity, return an empty list.
- Include at least one triple where predicate is "instanceOf".
- Do not get too wordy.
- Separate several objects into multiple triples with one object.
Input
Subject: ctangle
Description of subject: ctangle is a CWEB tool that converts literate CWEB source files into compilable C code by extracting and tangling the program fragments.

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

CWEB literate programming system typicalToolName ctangle
subject surface form: CWEB