miloignis/kraken
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

More AST stuff. Now supports boolean stuff

Browse Source
This commit is contained in:
Nathan Braswell
2013-11-07 22:19:33 -05:00
parent 1117fdf0cb
commit d38fd32323
4 changed files with 44 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
krakenGrammer.kgm
View File

@@ -28,29 +28,30 @@ typed_parameter = type WS parameter ;
opt_parameter_list = parameter_list | ;
parameter_list = parameter_list WS parameter | parameter ;
parameter = expression ;
parameter = boolean_expression ;
code_block = "{" WS statement_list WS "}" ;
statement_list = statement_list WS statement | statement ;
statement = if_statement | return_statement | expression WS ";" | boolean_expression WS ";" | assignment_statement WS ";" | declaration_statement WS ";" | code_block ;
statement = if_statement | return_statement | boolean_expression WS ";" | boolean_expression WS ";" | assignment_statement WS ";" | declaration_statement WS ";" | code_block ;
function_call = scope identifier "\(" WS opt_parameter_list WS "\)" ;
scope = scope identifier "::" | ;
if_statement = "if" WS boolean_expression WS statement | "if" WS "\(" WS boolean_expression WS "\)" WS statement ;
if_statement = "if" WS boolean_expression WS statement ;
return_statement = "return" WS boolean_expression WS ";" ;
boolean_expression = boolean_expression WS "\|\|" WS and_boolean_expression | and_boolean_expression ;
and_boolean_expression = and_boolean_expression "&&" bool_exp | bool_exp ;
bool_exp = "!" WS bool_exp | expression WS "==" WS expression | bool ;
return_statement = "return" WS "\(" WS expression WS "\)" WS ";" | "return" WS expression WS ";" ;
bool_exp = "!" WS bool_exp | expression WS comparator WS expression | bool | expression ;
comparator = "==" | "<=" | ">=" | "!=" ;
expression = expression WS "-" WS term | expression WS "\+" WS term | term ;
term = term WS forward_slash WS factor | term WS "\*" WS factor | factor ;
factor = number | identifier | function_call | bool | string ;
factor = number | identifier | function_call | bool | string | "\(" WS boolean_expression WS "\)" ;
number = integer | float | double ;
assignment_statement = identifier WS "=" WS expression ;
declaration_statement = type WS identifier WS "=" WS expression ;
assignment_statement = identifier WS "=" WS boolean_expression ;
declaration_statement = type WS identifier WS "=" WS boolean_expression ;
alphanumeric = alphanumeric numeric | alphanumeric alpha | numeric | alpha ;
hexadecimal = "0x(1|2|3|4|5|6|7|8|9|a|b|c|d|e|f)+" ;
@@ -61,4 +62,4 @@ double = sign numeric "." numeric | sign numeric "." numeric "d" ;
bool = "true" | "false" | "True" | "False" ;
alpha = "(a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z|.|_)+" ;
numeric = "(0|1|2|3|4|5|6|7|8|9)+" ;
string = "\"(a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z|.|!|_|-| | |\\|/|\||0|1|2|3|4|5|6|7|8|9)+\"" ;
string = "\"(a|b|c|d|e|f|g|h|i|j|k|l|m|n|o|p|q|r|s|t|u|v|w|x|y|z|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z|.|!|\?|_|-| | |\\|/|\||0|1|2|3|4|5|6|7|8|9)+\"" ;