text: // Copyright 2018 The Chromium Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  #ifndef THIRD_PARTY_BLINK_PUBLIC_COMMON_MANIFEST_MANIFEST_SHARE_TARGET_UTIL_H_
  #define THIRD_PARTY_BLINK_PUBLIC_COMMON_MANIFEST_MANIFEST_SHARE_TARGET_UTIL_H_
  
  #include <string>
  
  #include "base/strings/string_piece.h"
  #include "third_party/blink/common/common_export.h"
  
  class GURL;
  
  namespace blink {
  
  // Determines whether |url_template| is valid; that is, whether
  // ReplaceWebShareUrlPlaceholders() would succeed for the given template.
  BLINK_COMMON_EXPORT bool ValidateWebShareUrlTemplate(const GURL& url_template);
  
  // Writes to |url_template_filled|, a copy of |url_template| with all
  // instances of "{title}", "{text}", and "{url}" in the query and fragment
  // parts of the URL replaced with |title|, |text|, and |url| respectively.
  // Replaces instances of "{X}" where "X" is any string besides "title",
  // "text", and "url", with an empty string, for forwards compatibility.
  // Returns false, if there are badly nested placeholders.
  // This includes any case in which two "{" occur before a "}", or a "}"
  // occurs with no preceding "{".
  BLINK_COMMON_EXPORT bool ReplaceWebShareUrlPlaceholders(
      const GURL& url_template,
      base::StringPiece title,
      base::StringPiece text,
      const GURL& share_url,
      GURL* url_template_filled);
  
  }  // namespace blink
  
  #endif  // THIRD_PARTY_BLINK_PUBLIC_COMMON_MANIFEST_MANIFEST_SHARE_TARGET_UTIL_H_
  