simple_template_engine 1.0.0 
simple_template_engine: ^1.0.0 copied to clipboard
A dynamic template rendering engine.
Simple Template Engine #
A dynamic template rendering engine for Dart that allows inline Dart expressions and control structures within your templates. This engine uses dart_eval to parse and execute templates, enabling features such as conditional rendering, loops, and more.
Installation #
Add the following to your pubspec.yaml:
dependencies:
simple_template_engine: ^1.0.0
Usage #
import 'package:simple_template_engine/simple_template_engine.dart';
Basic example #
main() {
var template = '''
Hello, <% name %>!
Today is <% DateTime.now().weekday %>.
''';
var output = executeTemplate(
template,
name: 'Dart Enthusiast',
);
print(output);
}
Control structures example #
var template = '''
<% if (showSkills) { %>
Skills:
<% for (final skill in skills) { %>
<p><% skill %></p>
<% } %>
<% } else { %>
No skills to show.
<% } %>
''';
var output = executeTemplate(
template,
skills: ['Dart', 'HTML'],
showSkills: true,
);
print(output);
HTML server example #
// Don't forget to add the shelf_router package too:
// dart pub add shelf_router
// ignore_for_file: implicit_call_tearoffs, depend_on_referenced_packages
import 'dart:math';
import 'dart:convert';
import 'package:shelf/shelf.dart';
import 'package:shelf/shelf_io.dart';
import 'package:shelf_router/shelf_router.dart';
import 'package:simple_template_engine/simple_template_engine.dart';
main() async {
final router = Router();
mapHelloPage(router);
final server = await serve(router, 'localhost', 8080);
print('Server running on http://localhost:${server.port}');
}
mapHelloPage(Router router) {
router.get('/<name>', (Request request, String name) {
// Define a template with inline CSS and a dynamic greeting.
final pageTemplate = '''
<html>
<head>
<style>
body {
font-family: Arial, sans-serif;
background-color: #f0f0f0;
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
margin: 0;
text-align: center;
}
.greeting {
font-size: 2em;
color: hsl(<% colorHue %>, 100%, 40%);
animation: pulse 2s infinite;
}
@keyframes pulse {
0% { transform: scale(1); }
50% { transform: scale(1.1); }
100% { transform: scale(1); }
}
</style>
</head>
<body>
<div class="greeting">Hello, <% name %>!</div>
</body>
</html>
''';
return Response.ok(
// Response body:
executeTemplate(
pageTemplate,
name: const HtmlEscape().convert(name), // Escape user input.
colorHue: Random().nextInt(360), // Generate random color.
),
// Response headers:
headers: {'Content-Type': 'text/html'},
);
});
}
License #
This project is licensed under the BSD (3-Clause) License - see the LICENSE file for details.
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A dynamic template rendering engine.
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License
BSD-3-Clause (license)
