blob: 62d49fdfac11c9f476797cc21d3391d343e249d1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Blockly Demo: Headless</title>
<script src="../../blockly_compressed.js"></script>
<script src="../../blocks_compressed.js"></script>
<script src="../../python_compressed.js"></script>
<script src="../../msg/js/en.js"></script>
<style>
body {
background-color: #fff;
font-family: sans-serif;
}
h1 {
font-weight: normal;
font-size: 140%;
}
td {
vertical-align: top;
}
textarea {
width: 100%;
height: 20em;
}
</style>
</head>
<body>
<h1><a href="https://developers.google.com/blockly/">Blockly</a> >
<a href="../index.html">Demos</a> > Headless</h1>
<p>This is a simple demo of generating Python code from XML with no graphics.
This might be useful for server-side code generation.</p>
<table style="width: 100%">
<tr>
<td style="width:50%">
<textarea id="xml_input">
<xml>
<block type="controls_if" inline="false" x="20" y="20">
<mutation else="1"></mutation>
<value name="IF0">
<block type="logic_compare" inline="true">
<field name="OP">EQ</field>
<value name="A">
<block type="math_arithmetic" inline="true">
<field name="OP">MULTIPLY</field>
<value name="A">
<block type="math_number">
<field name="NUM">6</field>
</block>
</value>
<value name="B">
<block type="math_number">
<field name="NUM">7</field>
</block>
</value>
</block>
</value>
<value name="B">
<block type="math_number">
<field name="NUM">42</field>
</block>
</value>
</block>
</value>
<statement name="DO0">
<block type="text_print" inline="false">
<value name="TEXT">
<block type="text">
<field name="TEXT">Don't panic</field>
</block>
</value>
</block>
</statement>
<statement name="ELSE">
<block type="text_print" inline="false">
<value name="TEXT">
<block type="text">
<field name="TEXT">Panic</field>
</block>
</value>
</block>
</statement>
</block>
</xml>
</textarea>
</td>
<td>
</td>
<td style="width:50%">
<textarea id="code_output" readonly></textarea>
</td>
</tr>
</table>
<div style="text-align: center">
<button onclick="generate()">Generate Python ⤴</button>
</div>
<script>
function generate() {
// Parse the XML into a tree.
var xmlText = document.getElementById('xml_input').value;
try {
var xml = Blockly.Xml.textToDom(xmlText)
} catch (e) {
alert(e);
return;
}
// Create a headless workspace.
var workspace = new Blockly.Workspace();
Blockly.Xml.domToWorkspace(xml, workspace);
var code = Blockly.Python.workspaceToCode(workspace);
document.getElementById('code_output').value = code;
}
</script>
</body>
</html>
|
