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using System.Text.RegularExpressions;
using Nop.Core.Domain.Common;
using Nop.Services.Html.CodeFormatter;
namespace Nop.Services.Html;
/// <summary>
/// Represents a BBCode helper
/// </summary>
public partial class BBCodeHelper : IBBCodeHelper
{
#region Fields
protected readonly CommonSettings _commonSettings;
protected static readonly Regex _regexBold = new(@"\[b\](.+?)\[/b\]", RegexOptions.Compiled | RegexOptions.IgnoreCase);
protected static readonly Regex _regexItalic = new(@"\[i\](.+?)\[/i\]", RegexOptions.Compiled | RegexOptions.IgnoreCase);
protected static readonly Regex _regexUnderLine = new(@"\[u\](.+?)\[/u\]", RegexOptions.Compiled | RegexOptions.IgnoreCase);
protected static readonly Regex _regexUrl1 = new(@"\[url\=(https?:.+?)\]([^\]]+)\[/url\]", RegexOptions.Compiled | RegexOptions.IgnoreCase);
protected static readonly Regex _regexUrl2 = new(@"\[url\](https?:.+?)\[/url\]", RegexOptions.Compiled | RegexOptions.IgnoreCase);
protected static readonly Regex _regexQuote = new(@"\[quote=(.+?)\](.+?)\[/quote\]", RegexOptions.Compiled | RegexOptions.IgnoreCase);
protected static readonly Regex _regexImg = new(@"\[img\](.+?)\[/img\]", RegexOptions.Compiled | RegexOptions.IgnoreCase);
#endregion
#region Ctor
public BBCodeHelper(CommonSettings commonSettings)
{
_commonSettings = commonSettings;
}
#endregion
#region Methods
/// <summary>
/// Formats the text
/// </summary>
/// <param name="text">Text</param>
/// <param name="replaceBold">A value indicating whether to replace Bold</param>
/// <param name="replaceItalic">A value indicating whether to replace Italic</param>
/// <param name="replaceUnderline">A value indicating whether to replace Underline</param>
/// <param name="replaceUrl">A value indicating whether to replace URL</param>
/// <param name="replaceCode">A value indicating whether to replace Code</param>
/// <param name="replaceQuote">A value indicating whether to replace Quote</param>
/// <param name="replaceImg">A value indicating whether to replace Img</param>
/// <returns>Formatted text</returns>
public virtual string FormatText(string text, bool replaceBold, bool replaceItalic,
bool replaceUnderline, bool replaceUrl, bool replaceCode, bool replaceQuote, bool replaceImg)
{
if (string.IsNullOrEmpty(text))
return string.Empty;
if (replaceBold)
// format the bold tags: [b][/b] becomes: <strong></strong>
text = _regexBold.Replace(text, "<strong>$1</strong>");
if (replaceItalic)
// format the italic tags: [i][/i] becomes: <em></em>
text = _regexItalic.Replace(text, "<em>$1</em>");
if (replaceUnderline)
// format the underline tags: [u][/u] becomes: <u></u>
text = _regexUnderLine.Replace(text, "<u>$1</u>");
if (replaceUrl)
{
var newWindow = _commonSettings.BbcodeEditorOpenLinksInNewWindow;
// format the URL tags: [url=https://www.nopCommerce.com]my site[/url]
// becomes: <a href="https://www.nopCommerce.com">my site</a>
text = _regexUrl1.Replace(text, $"<a href=\"$1\" rel=\"nofollow\"{(newWindow ? " target=_blank" : "")}>$2</a>");
// format the URL tags: [url]https://www.nopCommerce.com[/url]
// becomes: <a href="https://www.nopCommerce.com">https://www.nopCommerce.com</a>
text = _regexUrl2.Replace(text, $"<a href=\"$1\" rel=\"nofollow\"{(newWindow ? " target=_blank" : "")}>$1</a>");
}
if (replaceQuote)
while (_regexQuote.IsMatch(text))
text = _regexQuote.Replace(text, "<b>$1 wrote:</b><div class=\"quote\">$2</div>");
if (replaceCode)
text = CodeFormatHelper.FormatTextSimple(text);
if (replaceImg)
// format the img tags: [img]https://www.nopCommerce.com/Content/Images/Image.jpg[/img]
// becomes: <img src="https://www.nopCommerce.com/Content/Images/Image.jpg">
text = _regexImg.Replace(text, "<img src=\"$1\" class=\"user-posted-image\" alt=\"\">");
return text;
}
/// <summary>
/// Removes all quotes from string
/// </summary>
/// <param name="str">Source string</param>
/// <returns>string</returns>
public virtual string RemoveQuotes(string str)
{
str = Regex.Replace(str, @"\[quote=(.+?)\]", string.Empty, RegexOptions.Compiled | RegexOptions.IgnoreCase);
str = Regex.Replace(str, @"\[/quote\]", string.Empty, RegexOptions.Compiled | RegexOptions.IgnoreCase);
return str;
}
#endregion
}