/// <summary>
/// Parses a string such as "web,cms,ubermeat" (without quotations) to extract tags; the return structure
/// will contain an array of successfully parsed tags; however if an error occurs, the error variable
/// is set and the process is aborted.
/// </summary>
/// <param name="tags"></param>
/// <returns></returns>
public static ArticleTags getTags(string tags, int tagsTitleMin, int tagsTitleMax, int tagsMax)
{
// Initialize return struct
ArticleTags tagCollection = new ArticleTags();
tagCollection.error = null;
tagCollection.tags = new List<string>();
// Parse the tags and try to find an error
string tag;
foreach (string rawTag in tags.Split(','))
{
tag = rawTag.Trim();
if (tag.Length != 0)
{
if (tag.Length < tagsTitleMin || tag.Length > tagsTitleMax)
{
tagCollection.error = "Invalid tag '" + tag + "' - must be between " + tagsTitleMin + " to " + tagsTitleMax + " characters!";
break;
}
else if (tagCollection.tags.Count + 1 > tagsMax)
tagCollection.error = "Maximum tags of " + tagsMax + " exceeded!";
else if(!tagCollection.tags.Contains(tag))
tagCollection.tags.Add(tag);
}
}
return tagCollection;
}