stylo.xtext

grammar org.xtext.stylodesign.stylo.Stylo with org.eclipse.xtext.common.Terminals

generate stylo "http://www.example.org/Stylo"

Model:
    elements+=Element*;

Element:
    Import | Parameter | ClassDeclaration | ComponentDeclaration | Render;

Import:
    'import' importURI=STRING;

Parameter:
    'param' name=ID '=' value=STRING;

ClassDeclaration:
    'class' name=ID '{' properties+=Property* '}';

Property:
    name=ID ':' value=STRING ';';

ComponentDeclaration:
    'component' name=ID ('(' (parameters+=ComponentParameter (',' parameters+=ComponentParameter)*)? ')')? '{' content=Content '}';

ComponentParameter:
    name=ID ('=' defaultValue=STRING)?;

Content:
    (items+=ContentItem)*;

ContentItem:
    ComponentReference | HTMLElement | Text | Slot;

ComponentReference:
    component=[ComponentDeclaration] ('(' (arguments+=ComponentArgument (',' arguments+=ComponentArgument)*)? ')')?;

ComponentArgument:
    value=STRING;

HTMLElement:
    name=ID_LOWER ('(' (attributes+=Attribute*)')')? '{' content=Content '}';

Attribute:
    name=ID ('=' value=STRING)?;

Text:
    value=STRING;

Slot:
    'Slot' ('(' 'name' '=' name=STRING ')')?;

Render:
    'render' name=ID '(' parameters+=RenderParameter (',' parameters+=RenderParameter)* ')' '{' content=Content '}';

RenderParameter:
    value=STRING;

terminal ID_UPPER:
    ('A'..'Z');

terminal ID_LOWER:
    ('a'..'z');