33 lines
1.1 KiB
Ruby
33 lines
1.1 KiB
Ruby
require_relative "basic_types"
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require_relative "tokens"
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require_relative "keywords"
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require_relative "conditional"
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require_relative "expression"
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require_relative "function_call"
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require_relative "function_definition"
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require_relative "operators"
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module Parser
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# obviously a work in progress !!
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# We "compose" the parser from bits, divide and hopefully conquer
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# a note about .maybe : .maybe is almost every respect the same as .repeat(0,1)
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# so either 0, or 1, in other words maybe. Nice feature, but there are strings attached:
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# a maybe removes the 0 a sequence (array) to a single (hash). Thus 2 transformations are needed
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# More work than the prettiness is worth, so only use .maybe on something that does not need capturing
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class Crystal < Parslet::Parser
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include BasicTypes
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include Tokens
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include Keywords
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include Conditional
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include Expression
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include FunctionCall
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include FunctionDefinition
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include Operators
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rule(:root){ (function_definition | expression | operator_expression | function_call).repeat }
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end
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end
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