46 lines
1.3 KiB
Swift
46 lines
1.3 KiB
Swift
import Foundation
|
|
import PathKit
|
|
|
|
#if os(Linux)
|
|
let NSFileNoSuchFileError = 4
|
|
#endif
|
|
|
|
/// A class representing a template
|
|
open class Template {
|
|
let tokens: [Token]
|
|
|
|
/// Create a template with the given name inside the given bundle
|
|
public convenience init(named:String, inBundle bundle:Bundle? = nil) throws {
|
|
let useBundle = bundle ?? Bundle.main
|
|
guard let url = useBundle.url(forResource: named, withExtension: nil) else {
|
|
throw NSError(domain: NSCocoaErrorDomain, code: NSFileNoSuchFileError, userInfo: nil)
|
|
}
|
|
|
|
try self.init(URL:url)
|
|
}
|
|
|
|
/// Create a template with a file found at the given URL
|
|
public convenience init(URL:Foundation.URL) throws {
|
|
try self.init(path: Path(URL.path))
|
|
}
|
|
|
|
/// Create a template with a file found at the given path
|
|
public convenience init(path:Path) throws {
|
|
self.init(templateString: try path.read())
|
|
}
|
|
|
|
/// Create a template with a template string
|
|
public init(templateString:String) {
|
|
let lexer = Lexer(templateString: templateString)
|
|
tokens = lexer.tokenize()
|
|
}
|
|
|
|
/// Render the given template
|
|
open func render(_ context: Context? = nil) throws -> String {
|
|
let context = context ?? Context()
|
|
let parser = TokenParser(tokens: tokens, namespace: context.namespace)
|
|
let nodes = try parser.parse()
|
|
return try renderNodes(nodes, context)
|
|
}
|
|
}
|