GNU Flex
E284605
free software
lexical analyzer generator
open-source software
scanner generator
software development tool
GNU Flex is a widely used open-source lexical analyzer generator that produces C-based scanners for tokenizing text according to user-defined patterns.
All labels observed (1)
| Label | Occurrences |
|---|---|
| GNU Flex canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2629215 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: GNU Flex Context triple: [GNU toolchain, includes, GNU Flex]
-
A.
Backus–Naur Form
Backus–Naur Form is a formal notation used to define the syntax of programming languages and other formal grammars in a precise, structured way.
-
B.
GNU Compiler Collection
The GNU Compiler Collection (GCC) is a widely used, free and open-source compiler system that supports numerous programming languages and platforms, forming a core component of the GNU toolchain and much of the open-source software ecosystem.
-
C.
GNU Autoconf
GNU Autoconf is a build configuration tool that automatically generates portable shell scripts to configure software packages for compilation on diverse Unix-like systems.
-
D.
Alur language
The Alur language is a Western Nilotic language spoken primarily by the Alur people of northwestern Uganda and northeastern Democratic Republic of the Congo.
-
E.
GNU Binutils
GNU Binutils is a collection of binary tools, including assemblers, linkers, and related utilities, widely used in software development for compiling and manipulating executable programs and object files.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: GNU Flex Target entity description: GNU Flex is a widely used open-source lexical analyzer generator that produces C-based scanners for tokenizing text according to user-defined patterns.
-
A.
Backus–Naur Form
Backus–Naur Form is a formal notation used to define the syntax of programming languages and other formal grammars in a precise, structured way.
-
B.
GNU Compiler Collection
The GNU Compiler Collection (GCC) is a widely used, free and open-source compiler system that supports numerous programming languages and platforms, forming a core component of the GNU toolchain and much of the open-source software ecosystem.
-
C.
GNU Autoconf
GNU Autoconf is a build configuration tool that automatically generates portable shell scripts to configure software packages for compilation on diverse Unix-like systems.
-
D.
Alur language
The Alur language is a Western Nilotic language spoken primarily by the Alur people of northwestern Uganda and northeastern Democratic Republic of the Congo.
-
E.
GNU Binutils
GNU Binutils is a collection of binary tools, including assemblers, linkers, and related utilities, widely used in software development for compiling and manipulating executable programs and object files.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
free software
ⓘ
lexical analyzer generator ⓘ open-source software ⓘ scanner generator ⓘ software development tool ⓘ |
| alternativeTo | lex ⓘ |
| buildSystem | autotools ⓘ |
| category |
GNU programming tool
ⓘ
compiler construction tool ⓘ |
| compatibleWith | lex ⓘ |
| developer | The Flex Project ⓘ |
| distributionFormat | source code ⓘ |
| documentation | flex manual ⓘ |
| generates |
C-based scanners
ⓘ
tokenizers ⓘ |
| homepage | https://github.com/westes/flex ⓘ |
| implements | lexical analysis ⓘ |
| influencedBy | lex ⓘ |
| inputFormat | .l files ⓘ |
| invocationCommand | flex ⓘ |
| license | GNU General Public License ⓘ |
| outputLanguage | C ⓘ |
| partOf | GNU Project ⓘ |
| programmingLanguage | C ⓘ |
| purpose |
building lexical analyzers
ⓘ
tokenizing text ⓘ |
| repository | https://github.com/westes/flex ⓘ |
| runsOn |
Linux
ⓘ
Unix-like systems ⓘ Windows ⓘ macOS ⓘ |
| supports |
regular expressions
ⓘ
user-defined patterns ⓘ |
| supportsFeature |
C++ scanner skeletons
ⓘ
bison-bridge interfaces ⓘ compressed transition tables ⓘ debugging output ⓘ fast table-driven scanners ⓘ interactive scanning ⓘ performance profiling options ⓘ reentrant scanners ⓘ start conditions ⓘ |
| usedFor |
compiler construction
ⓘ
domain-specific languages ⓘ interpreters ⓘ parsers ⓘ text processing tools ⓘ |
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: GNU Flex Description of subject: GNU Flex is a widely used open-source lexical analyzer generator that produces C-based scanners for tokenizing text according to user-defined patterns.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.