1 files changed, 104 insertions, 0 deletions
diff --git a/bootstrap/comments/frontend/strings.js b/bootstrap/comments/frontend/strings.js
new file mode 100644
index 0000000..270ce92
--- /dev/null
+++ b/bootstrap/comments/frontend/strings.js
@@ -0,0 +1,104 @@
+// Collection of convenient string related functions (strings.js)
+HashOverConstructor.prototype.strings = {
+	// sprintf specifiers regular expression
+	specifiers: /%([cdfs])/g,
+
+	// Curly-brace variable regular expression
+	curlyBraces: /(\{\{.+?\}\})/g,
+
+	// Curly-brace variable name regular expression
+	curlyNames: /\{\{(.+?)\}\}/,
+
+	// Simplistic JavaScript port of sprintf function in C
+	sprintf: function (string, args)
+	{
+		var string = string || '';
+		var args = args || [];
+		var count = 0;
+
+		// Replace specifiers with array items
+		return string.replace (this.specifiers, function (match, type)
+		{
+			// Return the original specifier if there isn't an item for it
+			if (args[count] === undefined) {
+				return match;
+			}
+
+			// Switch through each specific type
+			switch (type) {
+				// Single characters
+				case 'c': {
+					// Use only the first character
+					return args[count++][0];
+				}
+
+				// Integer numbers
+				case 'd': {
+					// Parse item as integer
+					return parseInt (args[count++]);
+				}
+
+				// Floating point numbers
+				case 'f': {
+					// Parse item as float
+					return parseFloat (args[count++]);
+				}
+
+				// Strings
+				case 's': {
+					// Use string as-is
+					return args[count++];
+				}
+			}
+		});
+	},
+
+	templatify: function (text)
+	{
+		var template = text.split (this.curlyBraces);
+		var indexes = {};
+
+		for (var i = 0, il = template.length, curly, name; i < il; i++) {
+			curly = template[i].match (this.curlyNames);
+
+			if (curly && curly.length > 0) {
+				name = curly[1];
+				template[i] = '';
+
+				if (indexes[name] !== undefined) {
+					indexes[name].push (i);
+				} else {
+					indexes[name] = [ i ];
+				}
+			}
+		}
+
+		return {
+			text: template,
+			indexes: indexes
+		}
+	},
+
+	// Parses an HTML template
+	parseTemplate: function (template, data)
+	{
+		if (!template || !template.indexes || !template.text) {
+			return;
+		}
+
+		var textClone = template.text.slice ();
+
+		for (var name in data) {
+			if (template.indexes[name] === undefined) {
+				continue;
+			}
+
+			for (var i = 0, il = template.indexes[name].length, index; i < il; i++) {
+				index = template.indexes[name][i];
+				textClone[index] = data[name];
+			}
+		}
+
+		return textClone.join ('');
+	}
+};