45 lines
1.3 KiB
Swift
45 lines
1.3 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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private var nodes:[NodeType]? = nil
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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? = nil) throws {
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let useBundle = bundle ?? NSBundle.mainBundle()
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guard let url = useBundle.URLForResource(named, withExtension: nil) else {
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throw NSError(domain: NSCocoaErrorDomain, code: NSFileNoSuchFileError, userInfo: nil)
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}
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try 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) throws {
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try self.init(path: Path(URL.path!))
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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) throws {
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self.init(templateString: try path.read())
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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
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public func render(context:Context? = nil) throws -> String {
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if nodes == nil {
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nodes = try parser.parse()
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}
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return try renderNodes(nodes!, context ?? Context())
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}
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}
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