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[grammar test] Sort tests by increading complexity.

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Miguel Lechon
2021-02-17 08:13:24 +01:00
parent 2e2ff1c42f
commit 35c802deae
2 changed files with 66 additions and 27 deletions
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tests/grammar.md
+4 -5
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@@ -5,17 +5,16 @@
* - Pipe signs indicate mutually exclusive alternatives
* - Square quotes denote optional rules
* - Character literals are terminal productions
* - Tags indicate which way the productions attach to the generated tree (@child, @sibling, @fill, @tag)
* and miscellaneous semantics (@markup)
* - Tags indicate which way the productions attach to the generated tree (@child, @sibling, @tag)
* and miscellaneous semantics (@fill, @markup)
*/
file : [@child set_list]
set_list : tagged_named_set [' ' @sibling set_list]
tagged_named_set: { [tag_list] set }
set_list : { [tag_list] set [' ' @sibling set_list] }
// TODO(mal): Accept other open/close tokens
set : @fill leaf | @fill identifier ':' @child @fill leaf | [@fill identifier ':'] '{' [@child set_list] '}'
tag_list : '@' @tag tag ' ' [tag_list]
tag : identifier [@markup '(' [@child set_list] @markup ')']
set : @fill leaf | @fill identifier ':' @child @fill leaf | [@fill identifier ':'] '{' [@child set_list] '}'
leaf : identifier | integer_literal | char_literal | string_literal // TODO(mal): Also symbol_label
identifier : alpha [alphanumeric] // TODO(mal): I think we should allow leading underscores
alphanumeric : alpha [alphanumeric] | digit [alphanumeric] | '_' [alphanumeric]