gcl
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Introduction
Language Basics
Scoping rules and their consequences
Using GCL files from Python
Command Line Tools
Schemas
Generating library documentation
Functions in GCL
Syntax Highlighting
Why should I care about GCL?
Expressive Power
gcl
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Welcome to gcl’s documentation!
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Welcome to gcl’s documentation!
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Contents:
Introduction
Vision
Why not use JSON?
Alternatives
Language Basics
Basic syntax
Expressions
Calling functions
Accessing values in tuples
Including other files
‘if’ expressions
List comprehensions
Tuple composition
Parameterized tuples
Accessing inherited values
Identifiers
Scoping rules and their consequences
Lexical Scope
Valueless keys are input parameters
The ‘inherit’ keyword
Using GCL files from Python
Bindings variables from the script
Finding nodes by location: GPath
Finding nodes by criteria: TupleFinder
Thread safety
Command Line Tools
gcl-print
gcl2json
Schemas
Use cases
Specifying a schema
Controlling key visibility on exports
Generating library documentation
Prerequisites
Writing doc comments
Special documentation tags
Generating the documentation
Functions in GCL
List of standard functions
Custom functions
Syntax Highlighting
Why should I care about GCL?
A gentle note of warning
Whither JSON?
Readability/writability
GCL Extensions
Principle: don’t repeat yourself!
Rule: you can always tell where a variable is coming from
Influences on script interpreting GCL models
Expressive Power
Tuples are functions
A more elaborate example
Multi-way relations
Inner tuples are closures
Let’s do something silly
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