SDEditGen.g4

program

 WHITE title objects statements

objects

 'objects' '{' objectDecl '}'

objectDecl

 ident colon ident flags

flags

 pipe flag

flag

 'named' 'existing'

statements

 statement

statementsInBraces

 '{' statement '}'

statement

 constructor method objectActions objectCreation methodCall diagramLink aFragment loop alt

objectCreation

 'new' ident arguments result optStatements

methodCall

 'call' ident dot methodName arguments result optStatements

methodName

 ident string

optStatements

 statementsInBraces optEnd

arguments

 '(' argument comma argument ')'

argument

 expression

result

 'return' expression

expression

 ident number string backString

constructor

 'constructor' ident statementsInBraces

method

 'method' ident dot methodName statementsInBraces

objectActions

 'object' ident statementsInBraces

aFragment

 'fragment' ident fragmentBody

loop

 'loop' fragmentBody

alt

 'alt' fragmentBody

fragmentBody

 string fragmentItems

fragmentItems

 '{' fragmentItem '}'

fragmentItem

 statement sectionDelimiter

sectionDelimiter

 'section' string
'diagramLink' string ident number optEnd

title

 'title' string optEnd

optEnd

 ';' WHITE

ident

 IDENT WHITE

string

 STRING WHITE

backString

 BACKSTRING WHITE

number

 NUMBER WHITE

comma

 ',' WHITE

dot

 '.' WHITE

colon

 ':' WHITE

pipe

 '|' WHITE

IDENT

 [a-zA-Z_] [a-zA-Z0-9_]

STRING

 '"' not ["] '"'

BACKSTRING

 '`' not [`] '`'

NUMBER

 [0-9]

WHITE

 [ \t\n\r]