Javascripts from plantuml and first test

encode.js

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+/** Functions from https://plantuml.com/code-javascript-synchronous
+ */
+
+function encode64(data) {
+	r = "";
+	for (i=0; i<data.length; i+=3) {
+ 		if (i+2==data.length) {
+			r +=append3bytes(data.charCodeAt(i), data.charCodeAt(i+1), 0);
+		} else if (i+1==data.length) {
+			r += append3bytes(data.charCodeAt(i), 0, 0);
+		} else {
+			r += append3bytes(data.charCodeAt(i), data.charCodeAt(i+1),
+				data.charCodeAt(i+2));
+		}
+	}
+	return r;
+}
+
+function append3bytes(b1, b2, b3) {
+	c1 = b1 >> 2;
+	c2 = ((b1 & 0x3) << 4) | (b2 >> 4);
+	c3 = ((b2 & 0xF) << 2) | (b3 >> 6);
+	c4 = b3 & 0x3F;
+	r = "";
+	r += encode6bit(c1 & 0x3F);
+	r += encode6bit(c2 & 0x3F);
+	r += encode6bit(c3 & 0x3F);
+	r += encode6bit(c4 & 0x3F);
+	return r;
+}
+
+function encode6bit(b) {
+	if (b < 10) {
+ 		return String.fromCharCode(48 + b);
+	}
+	b -= 10;
+	if (b < 26) {
+ 		return String.fromCharCode(65 + b);
+	}
+	b -= 26;
+	if (b < 26) {
+ 		return String.fromCharCode(97 + b);
+	}
+	b -= 26;
+	if (b == 0) {
+ 		return '-';
+	}
+	if (b == 1) {
+ 		return '_';
+	}
+	return '?';
+}

plantuml_codeblock_parse.js

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+
+var plantumlBasePath = "http://www.plantuml.com/plantuml/img/"
+
+var codeBlocks = document.getElementsByClassName("language-plantuml");
+
+for (var i = 0; i < codeBlocks.length; i++) {
+	s = codeBlocks[i].innerHTML
+	//UTF8
+	s = unescape(encodeURIComponent(s));
+	codeBlocks[i].innerHTML = "<img src=\"" + plantumlBasePath + encode64(zip_deflate(s, 9)) + ">";
+}