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Added markdown support. Underline, Italics, Strikethrough and Bold supported.

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This commit is contained in:
Andrew Morgan 2016-01-21 02:50:51 -08:00
parent bfb866cfa2
commit 4a1da7099f
2 changed files with 56 additions and 0 deletions
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55
src/chatlog/chatmessage.cpp
View File

@ -54,6 +54,9 @@ ChatMessage::Ptr ChatMessage::createChatMessage(const QString &sender, const QSt
//quotes (green text)
text = detectQuotes(detectAnchors(text), type);
//markdown
text = detectMarkdown(text);
switch(type)
{
case ACTION:
@ -175,6 +178,58 @@ void ChatMessage::hideDate()
c->hide();
}
QString ChatMessage::detectMarkdown(const QString &str)
{
QString out;
// Create regex for certain markdown syntax
QRegExp exp("(\\*\\*)([^\\*\\*]*)(\\*\\*)" // Bold **text**
"|(\\*)([^\\*]*)(\\*)" // Italics *text*
"|(\\_)([^\\_]*)(\\_)" // Italics _text_
"|(\\_\\_)([^\\_\\_]*)(\\_\\_)" // Italics __text__
"|(\\-)([^\\-]*)(\\-)" // Underline -text-
"|(\\~)([^\\~]*)(\\~)" // Strike ~text~
"|(\\~~)([^\\~\\~]*)(\\~~)" // Strike ~~text~~
);
// Support for multi-line text
QStringList messageLines = str.split("\n");
QStringList outLines;
for (int i = 0; i < messageLines.size(); ++i)
{
out = messageLines.at(i);
int offset = 0;
while ((offset = exp.indexIn(out, offset)) != -1)
{
QString snippet = exp.cap();
QString htmledSnippet;
// Match captured string to corresponding md format
if (exp.cap(1) == "**") // Bold **text**
htmledSnippet = QString("<b>%1</b>").arg(snippet.mid(2,snippet.length()-4));
else if (exp.cap(4) == "*" && snippet.length() > 2) // Italics *text*
htmledSnippet = QString("<i>%1</i>").arg(snippet.mid(1,snippet.length()-2));
else if (exp.cap(7) == "_" && snippet.length() > 2) // Italics _text_
htmledSnippet = QString("<i>%1</i>").arg(snippet.mid(1,snippet.length()-2));
else if (exp.cap(10) == "__"&& snippet.length() > 4) // Italics __text__
htmledSnippet = QString("<i>%1</i>").arg(snippet.mid(2,snippet.length()-4));
else if (exp.cap(13) == "-" && snippet.length() > 2) // Underline -text-
htmledSnippet = QString("<u>%1</u>").arg(snippet.mid(1,snippet.length()-2));
else if (exp.cap(16) == "~" && snippet.length() > 2) // Strikethrough ~text~
htmledSnippet = QString("<s>%1</s>").arg(snippet.mid(1,snippet.length()-2));
else if (exp.cap(19) == "~~" && snippet.length() > 4) // Strikethrough ~~text~~
htmledSnippet = QString("<s>%1</s>").arg(snippet.mid(2,snippet.length()-4));
else
htmledSnippet = snippet;
out.replace(offset, exp.cap().length(), htmledSnippet);
offset += htmledSnippet.length();
}
outLines.push_back(out);
}
return outLines.join("\n");
}
QString ChatMessage::detectAnchors(const QString &str)
{
QString out;

1
src/chatlog/chatmessage.h
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@ -61,6 +61,7 @@ public:
void hideDate();
protected:
static QString detectMarkdown(const QString& str);
static QString detectAnchors(const QString& str);
static QString detectQuotes(const QString& str, MessageType type);
static QString wrapDiv(const QString& str, const QString& div);