Git-Mirrors/RetroShare
1
0
Fork 0
mirror of https://github.com/RetroShare/RetroShare.git synced 2024-10-01 02:35:48 -04:00
Code Issues Actions Packages Projects Releases Wiki Activity

Change regular expression(s) for identifying hotlinks in feral text.

Browse Source
This commit is contained in:
Chuck Rhode aka Manuel Davis 2016-04-19 11:32:56 -05:00
parent 8be53dd79a
commit 5645e44f9c
1 changed files with 68 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

90
retroshare-gui/src/util/HandleRichText.cpp
View File

@ -17,6 +17,10 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* ccr . 2016 Jan 30 . Change regular expression(s) for identifying
* . . hotlinks in feral text.
*
****************************************************************/
#include <QApplication>
@ -56,7 +60,7 @@ protected:
public:
const EmbeddedType myType;
QRegExp myRE;
QList<QRegExp> myREs;
};
/**
@ -67,10 +71,42 @@ class EmbedInHtmlAhref : public EmbedInHtml
public:
EmbedInHtmlAhref() : EmbedInHtml(Ahref)
{
myRE.setPattern("(\\bretroshare://[^\\s]*)|(\\bhttps?://[^\\s]*)|(\\bfile://[^\\s]*)|(\\bwww\\.[^\\s]*)");
}
};
// myRE.setPattern("(\\bretroshare://[^\\s]*)|(\\bhttps?://[^\\s]*)|(\\bfile://[^\\s]*)|(\\bwww\\.[^\\s]*)");
// The following regular expressions for finding URLs in
// plain text are borrowed from *gnome-terminal*:
QString regPassCharset = "[-\\w,?;\\.:/!%$^*&~\\\"#']";
QString regHost = "[-\\w]+(\\.[-\\w]+)*";
QString regPort = "(?:\\:\\d{1,5})?";
QString regPathCharset = "[-\\w_$\\.+!*,;@&=?/~#%]";
QString regPathTermSet = "[^\\]'.}<>) \\t\\r\\n,\\\"]";
QStringList regSchemes;
// regSchemes.append("news:");
// regSchemes.append("telnet:");
// regSchemes.append("nntp:");
// regSchemes.append("file:/");
regSchemes.append("https?:");
// regSchemes.append("ftps?:");
// regSchemes.append("sftp:");
// regSchemes.append("webcal:");
regSchemes.append("retroshare:");
QString regScheme = "((?:" + regSchemes.join(")|(?:") + "))";
QString regUserPass = "[-\\w]+(?:%s+)?" % regPassCharset;
QString regUrlPath = "(?:(/" + regPathCharset + "+(?:[(]" + regPathCharset +"*[)])*" + regPathCharset + "*)*" + regPathTermSet + ")?";
QStringList regHotLinkFinders;
regHotLinkFinders.append(regScheme + "//(?:" + regUserPass + "@)?"+ regHost + regPort + regUrlPath);
// regHotLinkFinders.append("(?:(?:www)|(?:ftp))[-\\w]*\\." + regHost + regPort + regUrlPath);
// regHotLinkFinders.append("(?:(?:callto:)|(?:h323:)|(?:sip:))[-\\w][-\\w\\.]*(?:" + regPort + "/[a-z0-9]+)?@" + regHost);
// regHotLinkFinders.append("(?:mailto:)?[-\\w][-\\w\\.]*@[-\\w]+\\." + regHost);
// regHotLinkFinders.append("news:[\\w^_{|}~!\\\"#$%&'()*+,\\./;:=?`]+");
while (!regHotLinkFinders.isEmpty()) {
myREs.append(QRegExp(regHotLinkFinders.takeFirst(), Qt::CaseInsensitive));
};
}
};
/**
* This class is used to store information for embedding smileys into <img/> tags.
*
@ -134,7 +170,7 @@ void RsHtml::initEmoticons(const QHash< QString, QString >& hash)
*/
}
newRE.chop(1); // remove last |
defEmbedImg.myRE.setPattern(newRE);
defEmbedImg.myREs.append(QRegExp(newRE));
}
bool RsHtml::canReplaceAnchor(QDomDocument &/*doc*/, QDomElement &/*element*/, const RetroShareLink &link)
@ -243,7 +279,7 @@ void RsHtml::replaceAnchorWithImg(QDomDocument &doc, QDomElement &element, QText
* nodes. Any other kind of node is terminal.
*
* If the node is of type Text, its data is checked against the user-provided
* regular expression. If there is a match, the text is cut in three parts: the
* regular expression(s). If there is a match, the text is cut in three parts: the
* preceding part that will be inserted before, the part to be replaced, and the
* following part which will be itself checked against the regular expression.
*
@ -252,13 +288,10 @@ void RsHtml::replaceAnchorWithImg(QDomDocument &doc, QDomElement &element, QText
*
* @param[in] doc The whole DOM tree, necessary to create new nodes
* @param[in,out] currentElement The current node (which is of type Element)
* @param[in] embedInfos The regular expression and the type of embedding to use
* @param[in] embedInfos The regular expression(s) and the type of embedding to use
*/
void RsHtml::embedHtml(QTextDocument *textDocument, QDomDocument& doc, QDomElement& currentElement, EmbedInHtml& embedInfos, ulong flag)
{
if(embedInfos.myRE.pattern().length() == 0) // we'll get stuck with an empty regexp
return;
QDomNodeList children = currentElement.childNodes();
for(uint index = 0; index < (uint)children.length(); index++) {
QDomNode node = children.item(index);
@ -298,15 +331,20 @@ void RsHtml::embedHtml(QTextDocument *textDocument, QDomDocument& doc, QDomEleme
}
}
else if(node.isText()) {
// child is a text, we parse it
QString tempText = node.toText().data();
if(embedInfos.myRE.indexIn(tempText) == -1)
// child is a text, we parse it
QString tempText = node.toText().data();
for (int patNdx = 0; patNdx < embedInfos.myREs.size(); ++patNdx) {
QRegExp myRE = embedInfos.myREs.at(patNdx);
if(myRE.pattern().length() == 0) // we'll get stuck with an empty regexp
return;
if(myRE.indexIn(tempText) == -1)
continue;
// there is at least one link inside, we start replacing
int currentPos = 0;
int nextPos = 0;
while((nextPos = embedInfos.myRE.indexIn(tempText, currentPos)) != -1) {
while((nextPos = myRE.indexIn(tempText, currentPos)) != -1) {
// if nextPos == 0 it means the text begins by a link
if(nextPos > 0) {
QDomText textPart = doc.createTextNode(tempText.mid(currentPos, nextPos - currentPos));
@ -320,10 +358,10 @@ void RsHtml::embedHtml(QTextDocument *textDocument, QDomDocument& doc, QDomEleme
case Ahref:
{
insertedTag = doc.createElement("a");
insertedTag.setAttribute("href", embedInfos.myRE.cap(0));
insertedTag.appendChild(doc.createTextNode(embedInfos.myRE.cap(0)));
insertedTag.setAttribute("href", myRE.cap(0));
insertedTag.appendChild(doc.createTextNode(myRE.cap(0)));
RetroShareLink link(embedInfos.myRE.cap(0));
RetroShareLink link(myRE.cap(0));
if (link.valid()) {
QString title = link.title();
if (!title.isEmpty()) {
@ -340,11 +378,11 @@ void RsHtml::embedHtml(QTextDocument *textDocument, QDomDocument& doc, QDomEleme
{
insertedTag = doc.createElement("img");
const EmbedInHtmlImg& embedImg = static_cast<const EmbedInHtmlImg&>(embedInfos);
// embedInfos.myRE.cap(0) may include spaces at the end/beginning -> trim!
insertedTag.setAttribute("src", embedImg.smileys[embedInfos.myRE.cap(0).trimmed()]);
// myRE.cap(0) may include spaces at the end/beginning -> trim!
insertedTag.setAttribute("src", embedImg.smileys[myRE.cap(0).trimmed()]);
/*
* NOTE
* Trailing spaces are matched, too. This leads to embedInfos.myRE.matchedLength() being incorrect.
* Trailing spaces are matched, too. This leads to myRE.matchedLength() being incorrect.
* This hack reduces nextPos by one so that the new value of currentPos is calculated corretly.
* This is needed to match multiple smileys since the leading whitespace in front of a smiley is required!
*
@ -353,7 +391,7 @@ void RsHtml::embedHtml(QTextDocument *textDocument, QDomDocument& doc, QDomEleme
* NOTE
* Preceding spaces are also matched and removed.
*/
if(embedInfos.myRE.cap(0).endsWith(' '))
if(myRE.cap(0).endsWith(' '))
nextPos--;
}
break;
@ -362,7 +400,7 @@ void RsHtml::embedHtml(QTextDocument *textDocument, QDomDocument& doc, QDomEleme
currentElement.insertBefore(insertedTag, node);
index++;
currentPos = nextPos + embedInfos.myRE.matchedLength();
currentPos = nextPos + myRE.matchedLength();
}
// text after the last link, only if there's one, don't touch the index
@ -375,10 +413,18 @@ void RsHtml::embedHtml(QTextDocument *textDocument, QDomDocument& doc, QDomEleme
index--;
currentElement.removeChild(node);
break;
// We'd better not expect that
// subsequent hotlink patterns
// wouldn't also match replacements
// we've already made. They might, so
// skip 'em to be safe.
};
}
}
}
/**
* Save space and tab out of bracket that XML loose.
*