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[grammar test] Extra set delimiters and separators.

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Delimiters: Square brackets and parentheses.
Separators: Commas and semicolons
This commit is contained in:
Miguel Lechon
2021-02-17 12:05:56 +01:00
parent 35c802deae
commit c5d88b890b
2 changed files with 17 additions and 20 deletions
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tests/grammar.md
+12 -11
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@@ -9,14 +9,21 @@
* and miscellaneous semantics (@fill, @markup)
*/
file : [@child set_list]
set_list : { [tag_list] set [' ' @sibling set_list] }
file : [@child file_set_list]
file_set_list : { [tag_list] set [file_set_separator @sibling file_set_list] }
file_set_separator : ' ' | '\n'
// TODO(mal): Unify file_set_separator and set_separator by allowing ',' and ';' everywhere
set_list : { [tag_list] set [set_separator @sibling file_set_list] }
set_separator : ' ' | '\n' | ',' | ';'
// TODO(mal): Accept other open/close tokens
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] '}'
set : @fill leaf | @fill identifier ':' @child @fill leaf | [@fill identifier ':'] set_open [@child set_list] set_close
set_open : '{' | '[' | '('
set_close : '}' | ']' | ')'
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
identifier : alpha [alphanumeric] | '_' [alphanumeric]
alphanumeric : alpha [alphanumeric] | digit [alphanumeric] | '_' [alphanumeric]
integer_literal : { ['-'] natural_literal }
@@ -60,13 +67,7 @@ symbol_colon : ':'
/*
// NOTE(mal): I think this one should work too, but MD only allows newlines as top-level construct separators
file : [@child set_list]
set_list : set [',' @sibling set_list]
set : @fill element | '{' [@child set_list] '}'
element : 'A'
// NOTE(mal): This is the simplest grammar that works
// NOTE(mal): This is the simplest subset of the grammar that works
file : [@child set_list]
set_list : set ['\n' @sibling set_list]
set : @fill element | '{' [@child set_list] '}'