public static bool checkPhraseFoundSimple(string Content, PhraseFilter filter, out string context)
{
context = "";
if ((filter.Phrase ?? "") == "")
{
return(false);
}
bool found = false;
Content = Content.ToLower();
switch (filter.Type)
{
case BlockPhraseType.CONTAIN:
var index = Content.IndexOf(filter.Phrase);
if (index > -1)
{
context = getWordSurrounding(Content, index, filter.Phrase.Length);
}
found = index > -1;
break;
case BlockPhraseType.REGEX:
var match = Regex.Match(Content, filter.Phrase);
if (match.Groups[0].Length > 0)
{
context = getWordSurrounding(Content, match.Groups[0].Index, match.Groups[0].Length);
}
found = match.Groups[0].Length > 0;
break;
}
return(found);
}
/// <summary>
/// Find the phrase that the content is blocked from using.
/// </summary>
/// <param name="Content">string chunk</param>
/// <returns>Null if no phrase rule is applicabalbe (allowed)</returns>
public PhraseFilter findBlockingPhrase(string Content, BlockPhraseScope scope, out string context)
{
PhraseFilter result = null;
List <string> Words = getWords(Content);
context = "";
for (int i = 0; i < BlockedPhrases.Count && (result == null); i++)
{
if (
// Any of the scope is ALL
scope == BlockPhraseScope.ANY ||
BlockedPhrases[i].Scope == BlockPhraseScope.ANY
// Scopes are equal:
|| BlockedPhrases[i].Scope == scope
)
{
switch (BlockedPhrases[i].Type)
{
case BlockPhraseType.CONTAIN:
case BlockPhraseType.REGEX:
if (checkPhraseFoundSimple(Content, BlockedPhrases[i], out context))
{
result = BlockedPhrases[i];
}
break;
case BlockPhraseType.EXACTWORD:
case BlockPhraseType.WORDCONTAINING:
if (checkPhraseFoundWord(Words, BlockedPhrases[i], out context))
{
result = BlockedPhrases[i];
}
break;
}
}
}
return(result);
}
public static bool checkPhraseFoundWord(List <string> words, PhraseFilter filter, out string context)
{
context = "";
if ((filter.Phrase ?? "") == "")
{
return(false);
}
bool found = false;
int index = 0;
switch (filter.Type)
{
case BlockPhraseType.EXACTWORD:
index = words.IndexOf(filter.Phrase.ToLower());
if (index > -1)
{
context = words[index];
}
found = index > -1;
break;
case BlockPhraseType.WORDCONTAINING:
index = words.FindIndex((word) => word.Contains(filter.Phrase.ToLower()));
if (index > -1)
{
context = words[index];
}
found = index > -1;
break;
}
context = "_<" + context + ">_";
return(found);
}