qdoc: Added support for modularized example doc

qdoc now searches for .qdoc files in the directories
listed in the exampledirs variable. These files are
added to the list of sources to be parsed.

Task nr: QTBUG-26708

Change-Id: I6dfd7cd7b41e0bdf847f88b6d61ac0272902d4e1
Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>

src/tools/qdoc/config.cpp

@@ -315,7 +315,7 @@ QSet<QString> Config::getStringSet(const QString& var) const
 /*!
   First, this function looks up the configuration variable \a var
   in the location map and, if found, sets the internal variable
-  \c{lastLoc} the Location that \a var maps to.
+  \c{lastLoc} to the Location that \a var maps to.
 
   Then it looks up the configuration variable \a var in the string
   list map, and returns the string list that \a var maps to.
@@ -477,6 +477,22 @@ QStringList Config::getAllFiles(const QString &filesVar,
     return result;
 }
 
+QStringList Config::getExampleQdocFiles()
+{
+    QStringList result;
+    QSet<QString> excludedDirs;
+    QSet<QString> excludedFiles;
+    QStringList dirs = getStringList("exampledirs");
+    QString nameFilter = " *.qdoc";
+
+    QStringList::ConstIterator d = dirs.constBegin();
+    while (d != dirs.constEnd()) {
+        result += getFilesHere(*d, nameFilter, excludedDirs, excludedFiles);
+        ++d;
+    }
+    return result;
+}
+
 /*!
   \a fileName is the path of the file to find.
 

src/tools/qdoc/config.h

@@ -85,7 +85,7 @@ public:
                             const QString& dirsVar,
                             const QSet<QString> &excludedDirs = QSet<QString>(),
                             const QSet<QString> &excludedFiles = QSet<QString>());
-
+    QStringList getExampleQdocFiles();
     static QStringList getFilesHere(const QString& dir,
                                     const QString& nameFilter,
                                     const QSet<QString> &excludedDirs = QSet<QString>(),

src/tools/qdoc/main.cpp

@@ -363,6 +363,16 @@ static void processQdocconfFile(const QString &fileName)
         QString t = sourceList[i].mid(sourceList[i].lastIndexOf('/')+1);
         sourceFileNames.insert(t,t);
     }
+    /*
+      Find all the qdoc files in the example dirs, and add
+      them to the source files to be parsed.
+     */
+    QStringList exampleQdocList = config.getExampleQdocFiles();
+    for (int i=0; i<exampleQdocList.size(); ++i) {
+        sources.insert(exampleQdocList[i],exampleQdocList[i]);
+        QString t = exampleQdocList[i].mid(exampleQdocList[i].lastIndexOf('/')+1);
+        sourceFileNames.insert(t,t);
+    }
 
     /*
       Parse each header file in the set using the appropriate parser and add it