54 lines
1.6 KiB
Plaintext
54 lines
1.6 KiB
Plaintext
// This describes the plan definition grammar for zap
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planfile = _{ SOI
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~ task+
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~ EOI }
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task = { "task"
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~ string
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~ opening_brace
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~ kwarg*
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~ closing_brace
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}
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kwarg = { identifier ~ equals ~ arg }
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// Right now only string arguments are supported
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arg = { string }
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// Unfortunately pest doesn't yet support sharing rules between grammars
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// so everything below this line is copy/pasted between task.pest and
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// plan.pest, when making changes to one, make sure to change the other
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// An identifier will be used to refer to the task later
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identifier = { ASCII_ALPHA ~ (ASCII_ALPHANUMERIC | "_")* }
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opening_brace = _{ "{" }
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closing_brace = _{ "}" }
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equals = _{ "=" }
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quote = _{ "'" }
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triple_quote = _{ "'''" }
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string = { triple_quoted | single_quoted }
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single_quoted = ${ (quote ~ inner_single_str ~ quote) }
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inner_single_str = @{ (!(quote | "\\") ~ ANY)* ~ (escape ~ inner_single_str)? }
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triple_quoted = ${ (triple_quote ~ inner_triple_str ~ triple_quote) }
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inner_triple_str = @{ (!(triple_quote | "\\") ~ ANY)* ~ (escape ~ inner_triple_str)? }
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escape = @{ "\\" ~ ("\"" | "\\" | "r" | "n" | "t" | "0" | "'" | code | unicode) }
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code = @{ "x" ~ hex_digit{2} }
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unicode = @{ "u" ~ opening_brace ~ hex_digit{2, 6} ~ closing_brace }
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hex_digit = @{ '0'..'9' | 'a'..'f' | 'A'..'F' }
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typedef = { string_type }
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string_type = { "string" }
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bool = { truthy | falsey }
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truthy = { "true" }
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falsey = { "false" }
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block_comment = _{ "/*" ~ (block_comment | !"*/" ~ ANY)* ~ "*/" }
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COMMENT = _{ block_comment | ("//" ~ (!NEWLINE~ ANY)*) }
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WHITESPACE = _{ " " | "\t" | NEWLINE }
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