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[grammar test] Fairly complete test grammars.
This commit is contained in:
Miguel Lechon
+85
-121
@@ -1,60 +1,3 @@
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// Arbitrarily deep tree, possibly empty
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// file : [@child set]
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// set : '{' [@child set] '}' | set [' ' @sibling set]
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// Labeled leaves
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// file : [@child set]
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// set : @fill 'A' | '{' [@child set] '}' | set [' ' @sibling set]
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// Labels also on internal nodes ('iset' is an implicitly separated set)
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// file : [@child set]
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// set : @fill 'A' [':' @child iset '\n'] | [@fill 'A' ':'] curly_set | set [' ' @sibling set]
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// iset /* implicit separator */ : @fill 'A' [':' @child iset] | @fill 'A'[':' curly_set] | @fill 'A' [' ' @sibling iset] | @fill 'A' [' ' @sibling curly_set]
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// curly_set : '{' [@child set] '}'
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// Labels also on internal nodes (v2) ('iset' is an implicitly separated set)
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// file : [@child set]
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// set : @fill 'A' [':' @child iset '\n'] | [@fill 'A' ':'] curly_set | set [' ' @sibling set]
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// iset /* implicit separator */ : @fill 'A' [iset_tail]
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// iset_tail : ':' @child iset | ' ' @sibling iset | ':' curly_set | ' ' @sibling curly_set
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// curly_set : '{' [@child set] '}'
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// Tags
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// file : [@child set]
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// set : {[tag_list] untagged_set}
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// iset : {[tag_list] untagged_iset}
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// tag_list : '@' @tag tag ' ' [tag_list]
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// tag : 'T'
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// untagged_set : @fill 'A' [':' @child iset '\n'] | [@fill 'A' ':'] curly_set | set [' ' @sibling set]
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// untagged_iset : @fill 'A' [iset_tail]
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// iset_tail : ':' @child iset | ' ' @sibling iset | ':' curly_set | ' ' @sibling curly_set
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// curly_set : '{' [@child set] '}'
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// Tag parameters
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file : [@child set]
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set : {[tag_list] untagged_set}
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iset : {[tag_list] untagged_iset}
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tag_list : '@' @tag tag ' ' [tag_list]
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tag : @fill 'T'['(' [@child set] ')']
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untagged_set : @fill 'A' [':' @child iset '\n'] | [@fill 'A' ':'] curly_set | set [' ' @sibling set]
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untagged_iset : @fill 'A' [iset_tail]
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iset_tail : ':' @child iset | ' ' @sibling iset | ':' curly_set | ' ' @sibling curly_set
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curly_set : '{' [@child set] '}'
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// top-level and set separators
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// file : [@child file_set_list]
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// file_set_list : set [file_set_separator @sibling file_set_list]
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// file_set_separator : ' ' | '\n'
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// set : '{' [@child set] '}' | set [separator @sibling set]
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// separator : ' ' | ','
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/////////////////////////////////////////// REFERENCE ///////////////////////////////////////////////////////////
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/*
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/* MetaDesk grammar with semantic annotations
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*
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* Each line represents a BNF-esque production:
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@@ -66,73 +9,94 @@ curly_set : '{' [@child set] '}'
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* and miscellaneous semantics (@fill, @markup)
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*/
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file : [@child file_set_list]
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file_set_list : { [tag_list] set [file_set_separator @sibling file_set_list] }
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file_set_separator : ' ' | '\n'
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//// Arbitrarily deep tree, possibly empty
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// file : [@child set]
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// set : '{' [@child set] '}' | set [' ' @sibling set]
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// TODO(mal): Unify file_set_separator and set_separator by allowing ',' and ';' everywhere ?
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set_list : { [tag_list] set [set_separator @sibling set_list] }
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set_separator : ' ' | '\n' // TODO(mal): | ',' | ';'
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//// Labeled leaves
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// file : [@child set]
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// set : @fill 'A' | '{' [@child set] '}' | set [' ' @sibling set]
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//// Labels also on internal nodes ('iset' is an implicitly separated set)
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// file : [@child set]
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// set : @fill 'A' [':' @child iset '\n'] | [@fill 'A' ':'] scoped_set | set [' ' @sibling set]
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// iset : @fill 'A' [iset_tail]
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// iset_tail : ':' @child iset | ' ' @sibling iset | ':' scoped_set | ' ' @sibling scoped_set
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// scoped_set : '{' [@child set] '}'
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//// Tags
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// file : [@child set]
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// set : {[tag_list] untagged_set}
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// iset : {[tag_list] untagged_iset}
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// tag_list : '@' @tag tag ' ' [tag_list]
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// tag : @fill 'T'['(' [@child set] ')']
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// untagged_set : @fill 'A' [':' @child iset '\n'] | [@fill 'A' ':'] scoped_set | set [' ' @sibling set]
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// untagged_iset : @fill 'A' [iset_tail]
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// iset_tail : ':' @child iset | ' ' @sibling iset | ':' scoped_set | ' ' @sibling scoped_set
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// scoped_set : '{' [@child set] '}'
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//// Alternative scope markers
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// file : [@child set]
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// set : {[tag_list] untagged_set}
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// iset : {[tag_list] untagged_iset}
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// tag_list : '@' @tag tag ' ' [tag_list]
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// tag : @fill 'T'['(' [@child set] ')']
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// untagged_set : @fill 'A' [':' @child iset '\n'] | [@fill 'A' ':'] scoped_set | set [' ' @sibling set]
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// untagged_iset : @fill 'A' [iset_tail]
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// iset_tail : ':' @child iset | ' ' @sibling iset | ':' scoped_set | ' ' @sibling scoped_set
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// scoped_set : '{' [@child set] '}' | scope_beg [@child set] scope_end
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// scope_beg : '(' | '['
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// scope_end : ')' | ']'
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//// Identifiers
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// file : [@child set]
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// set : {[tag_list] untagged_set}
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// iset : {[tag_list] untagged_iset}
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// tag_list : '@' @tag tag ' ' [tag_list]
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// tag : @fill id['(' [@child set] ')']
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// untagged_set : @fill 'A' [':' @child iset '\n'] | [@fill 'A' ':'] scoped_set | set [' ' @sibling set]
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// untagged_iset : @fill 'A' [iset_tail]
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// iset_tail : ':' @child iset | ' ' @sibling iset | ':' scoped_set | ' ' @sibling scoped_set
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// scoped_set : '{' [@child set] '}' | scope_beg [@child set] scope_end
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// scope_beg : '(' | '['
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// scope_end : ')' | ']'
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// id : alpha [alphanumeric]
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// alphanumeric : alpha [alphanumeric] | digit [alphanumeric] | '_' [alphanumeric]
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// alpha : lowercase | uppercase
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// lowercase : 'a'|'b'|'c'|'d'|'e'|'f'|'g'|'h'|'i'|'j'|'k'|'l'|'m'|'n'|'o'|'p'|'q'|'r'|'s'|'t'|'u'|'v'|'w'|'z'|'y'|'z'
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// uppercase : 'A'|'B'|'C'|'D'|'E'|'F'|'G'|'H'|'I'|'J'|'K'|'L'|'M'|'N'|'O'|'P'|'Q'|'R'|'S'|'T'|'U'|'V'|'W'|'Z'|'Y'|'Z'
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// digit : '0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'
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//// General labels
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file : [@child set]
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set : {[tag_list] untagged_set}
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iset : {[tag_list] untagged_iset}
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tag_list : '@' @tag tag ' ' [tag_list]
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/*
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tag : identifier [@markup '(' [@child set_list] @markup ')']
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set : @fill leaf | @fill identifier ':' @child @fill leaf | [@fill identifier ':'] '{' [@child set_list] '}' | [@fill identifier ':'] set_open [@child set_list] set_close
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set : @fill leaf | @fill identifier ':' @child space_separated_set_list | [@fill identifier ':'] set_open [@child set_list] set_close
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*/
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tag : identifier
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set : @fill leaf [':' @child space_separated_set_list '\n'] | @fill leaf [':' '{' [@child set_list] '}'] | space_separated_set_list '\n' | '{' [@child set_list] '}'
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space_separated_set_list : { [tag_list] set [' ' @sibling space_separated_set_list] }
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// set_open : '[' | '('
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// set_close : ']' | ')'
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set_open : '[' // TODO(mal): Should also accept '('
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set_close : ']' // TODO(mal): Should also accept ')'
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leaf : identifier | integer_literal | char_literal | string_literal // TODO(mal): Also symbol_label
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identifier : alpha [alphanumeric]
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name_identifier : alpha [alphanumeric]
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tag : @fill id['(' [@child set] ')']
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untagged_set : @fill label [':' @child iset '\n'] | [@fill label ':'] scoped_set | set [' ' @sibling set]
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untagged_iset : @fill label [iset_tail]
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iset_tail : ':' @child iset | ' ' @sibling iset | ':' scoped_set | ' ' @sibling scoped_set
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scoped_set : '{' [@child set] '}' | scope_beg [@child set] scope_end
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scope_beg : '(' | '['
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scope_end : ')' | ']'
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id : alpha [alphanumeric] | '_' [alphanumeric]
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alphanumeric : alpha [alphanumeric] | digit [alphanumeric] | '_' [alphanumeric]
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integer_literal : { ['-'] natural_literal }
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natural_literal : digit [natural_literal]
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char_literal : @markup '\'' [char_literal_items] @markup '\''
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char_literal_items : char_literal_item [char_literal_items]
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char_literal_item : ascii_no_backslash_no_quotes | '"' | '\\' ascii
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ascii : ascii_no_backslash_no_quotes | '\'' | '"' | '\\'
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ascii_no_backslash_no_quotes : digit | alpha | symbol_no_backslash_no_quotes | space
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symbol_no_backslash_no_quotes : symbol_no_backslash_no_quotes_1 | symbol_no_backslash_no_quotes_2
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symbol_no_backslash_no_quotes_1 : '!'|'#'|'$'|'%'|'&'|'('|')'|'*'|'+'|','|'-'|'.'|'/'|':'|';'
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symbol_no_backslash_no_quotes_2 : '<'|'='|'>'|'?'|'@'|'['|']'|'^'|'_'|'`'|'{'|'|'|'}'|'~'
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string_literal : @markup '"' [string_literal_items] @markup '"'
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string_literal_items : string_literal_item [string_literal_items]
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string_literal_item : ascii_no_backslash_no_quotes | '\'' | '\\' ascii
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digit : '0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'
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alpha : lowercase | uppercase
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lowercase : 'a'|'b'|'c'|'d'|'e'|'f'|'g'|'h'|'i'|'j'|'k'|'l'|'m'|'n'|'o'|'p'|'q'|'r'|'s'|'t'|'u'|'v'|'w'|'z'|'y'|'z'
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uppercase : 'A'|'B'|'C'|'D'|'E'|'F'|'G'|'H'|'I'|'J'|'K'|'L'|'M'|'N'|'O'|'P'|'Q'|'R'|'S'|'T'|'U'|'V'|'W'|'Z'|'Y'|'Z'
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space : ' '
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symbol_label : '~'|'!'|'%'|'^'|'&'|'*'|'+'|'-'|'/'|'|'|'<'|'>'|'$'|'='|'.'|'?'|'_'|'\\'
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/*
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symbol_no_quote : symbol_label | symbol_colon | symbol_group
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symbol : symbol_label | symbol_colon | symbol_group
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symbol_group : symbol_open | symbol_close
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symbol_open : '(' | '[' | '{'
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symbol_close : ')' | ']' | '}'
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escaped_char : '\\' '\\' | '\\' '\'' | '\\' '\"'
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symbol_colon : ':'
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*/
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*/
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digit : '0'|'1'|'2'|'3'|'4'|'5'|'6'|'7'|'8'|'9'
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label : id | integer_literal | char_literal | string_literal | symbol_label
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integer_literal : { ['-'] natural_literal }
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natural_literal : digit [natural_literal]
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char_literal : @markup '\'' [char_literal_items] @markup '\''
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char_literal_items : char_literal_item [char_literal_items]
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char_literal_item : ascii_no_backslash_no_quotes | '"' | '\\' ascii
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ascii : ascii_no_backslash_no_quotes | '\'' | '"' | '`' | '\\'
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ascii_no_backslash_no_quotes : digit | alpha | symbol_no_backslash_no_quotes | ' '
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symbol_no_backslash_no_quotes : symbol_no_backslash_no_quotes_1 | symbol_no_backslash_no_quotes_2
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symbol_no_backslash_no_quotes_1 : '!'|'#'|'$'|'%'|'&'|'('|')'|'*'|'+'|','|'-'|'.'|'/'|':'
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symbol_no_backslash_no_quotes_2 : ';'|'<'|'='|'>'|'?'|'@'|'['|']'|'^'|'_'|'{'|'|'|'}'|'~'
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string_literal : @markup '"' [string_literal_items] @markup '"' | @markup '`' [string_literal_items] @markup '`'
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string_literal_items : string_literal_item [string_literal_items]
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string_literal_item : ascii_no_backslash_no_quotes | '\'' | '\\' ascii
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symbol_label : '~'|'!'|'%'|'^'|'&'|'*'|'+'|'-'|'/'|'|'|'<'|'>'|'$'|'='|'.'|'?'|'$'
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