angular_ast
Parser and utilities for AngularDart templates.
This package is platform agnostic (no HTML or Dart VM dependencies).
Usage
Currently in development and not stable.
import 'package:angular_ast/angular_ast.dart';
main() {
// Create an AST tree by parsing an AngularDart template.
var tree = parse('<button [title]="someTitle">Hello</button>');
// Print to console.
print(tree);
// Output:
// [
// ElementAst <button> {
// properties=
// PropertyAst {
// title="ExpressionAst {someTitle}"}
// childNodes=TextAst {Hello}
// }
// }
// ]
}Additional flags can be passed to change the behavior of the parser:
String sourceUrl: String describing the path of the HTML string.
bool desugar: (Default: true) Enabled desugaring of banana-syntax,
star syntax, and pipes.
bool parseExpressions: (Default: true) Parses Dart expressions
raises exceptions if occurred.
ExceptionHandler exceptionHandler: (Default: ThrowingExceptionHandler)
Switch to 'new RecoveringExceptionHandler()' to enable error
recovery.
When using RecoveringExceptionHandler, the accumulated exceptions can be accessed through the RecoveringExceptionHandler object. Refer to the following example:
void parse(String content, String sourceUrl) {
var exceptionHandler = new RecoveringExceptionHandler();
var asts = parse(
content,
sourceUrl: sourceUrl,
desugar: false,
parseExpressions: false,
exceptionHandler: exceptionHandler,
);
for (AngularParserException e in exceptionHandler.exceptions) {
// Do something with exception.
}
}