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// Replace some text with a ``MarkupRewriter``.
//
// > Experiment: You can use a similar approach for other kinds of replacements.
// > Try updating link destinations in your document by implementing
// > a `visitLink` method and returning a new ``Link`` element.
import Markdown
struct TextReplacer: MarkupRewriter {
var target: String
var replacement: String
init(replacing target: String, with replacement: String?) {
precondition(!target.isEmpty)
self.target = target
self.replacement = replacement ?? ""
}
func visitText(_ text: Text) -> Markup? {
return Text(text.string.replacingOccurrences(of: target, with: replacement))
}
}
let source = """
The word "foo" will be replaced with "bar".
"""
let document = Document(parsing: source)
var replacer = TextReplacer(replacing: "foo", with: "bar")
let newDocument = replacer.visit(document) as! Document
print("""
## Original Markdown structure:
\(document.debugDescription())
## New Markdown structure:
\(newDocument.debugDescription())
""")
// snippet.hide
/*
This source file is part of the Swift.org open source project
Copyright (c) 2022 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See https://swift.org/LICENSE.txt for license information
See https://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
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