Refactoring: remove implicit conversion from QCString to const char *

This commit changes the following in relation to string use
- The implicit convert from 'QCString' to 'const char *' is removed
- Strings parameters use 'const QCString &' as much as possible in favor
  over 'const char *'
- 'if (s)' where s is a QCString has been replaced by 'if(!s.isEmpty())'
- data() now always returns a valid C-string and not a 0-pointer.
- when passing a string 's' to printf and related functions 'qPrint(s)' is
  used instead of 's.data()'
- for empty string arguments 'QCString()' is used instead of '0'
- The copy() operation has been removed
- Where possible 'qstrcmp(a,b)==0' has been replaces by 'a==b' and
  'qstrcmp(a,b)<0' has been replaced by 'a<b'
- Parameters of string type that were default initialized with '= 0' are
  no initialized with '= QCString()'

1 files changed, 3 insertions, 4 deletions

diff --git a/src/dotfilepatcher.h b/src/dotfilepatcher.h
index e0ac918..af2c855 100644
--- a/src/dotfilepatcher.h
+++ b/src/dotfilepatcher.h
@@ -26,8 +26,7 @@ class TextStream;
 class DotFilePatcher
 {
   public:
-    DotFilePatcher(const char *patchFile);
-
+    DotFilePatcher(const QCString &patchFile);
     int addMap(const QCString &mapFile,const QCString &relPath,
                bool urlOnly,const QCString &context,const QCString &label);
 
@@ -42,8 +41,8 @@ class DotFilePatcher
     bool run() const;
     bool isSVGFile() const;
 
-    static bool convertMapFile(TextStream &t,const char *mapName,
-                               const QCString relPath, bool urlOnly=FALSE,
+    static bool convertMapFile(TextStream &t,const QCString &mapName,
+                               const QCString &relPath, bool urlOnly=FALSE,
                                const QCString &context=QCString());
 
     static bool writeSVGFigureLink(TextStream &out,const QCString &relPath,