74 lines
2.1 KiB
Swift
74 lines
2.1 KiB
Swift
import Foundation
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import PathKit
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/// A class representing a template
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public class Template {
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public let parser:TokenParser
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/// Create a template with the given name inside the main bundle
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public convenience init?(named:String) {
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self.init(named:named, inBundle:nil)
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}
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/// Create a template with the given name inside the given bundle
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public convenience init?(named:String, inBundle bundle:NSBundle?) {
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var url:NSURL?
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if let bundle = bundle {
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url = bundle.URLForResource(named, withExtension: nil)
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} else {
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url = NSBundle.mainBundle().URLForResource(named, withExtension: nil)
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}
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self.init(URL:url!)
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}
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/// Create a template with a file found at the given URL
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public convenience init?(URL:NSURL) {
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var error:NSError?
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let maybeTemplateString = NSString(contentsOfURL: URL, encoding: NSUTF8StringEncoding, error: &error)
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if let templateString = maybeTemplateString {
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self.init(templateString:templateString)
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} else {
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self.init(templateString:"")
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return nil
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}
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}
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/// Create a template with a file found at the given path
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public convenience init?(path:Path) {
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var error:NSError?
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if let string:String = path.read() {
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self.init(templateString:string)
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} else {
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self.init(templateString:"")
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return nil
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}
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}
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/// Create a template with a template string
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public init(templateString:String) {
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let lexer = Lexer(templateString: templateString)
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let tokens = lexer.tokenize()
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parser = TokenParser(tokens: tokens)
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}
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/// Render the given template in a context
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public func render(context:Context) -> Result {
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switch parser.parse() {
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case .Success(let nodes):
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return renderNodes(nodes, context)
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case .Error(let error):
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return .Error(error)
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}
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}
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/// Render the given template without a context
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public func render() -> Result {
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let context = Context()
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return render(context)
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}
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}
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