55 lines
1.6 KiB
Swift
55 lines
1.6 KiB
Swift
import Foundation
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public class Template {
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let parser:TokenParser
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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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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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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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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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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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let (result, error) = renderNodes(nodes, context)
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if let result = result {
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return .Success(string:result)
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} else if let error = error {
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return .Error(error:error)
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}
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return .Success(string:"")
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case .Error(let error):
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return .Error(error:error)
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}
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}
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}
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