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- 'if (s)' where s is a QCString has been replaced by 'if(!s.isEmpty())'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0' has been replaced by 'a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, 13 insertions, 10 deletions

diff --git a/src/fileparser.cpp b/src/fileparser.cpp
index 34085dc..33491fc 100644
--- a/src/fileparser.cpp
+++ b/src/fileparser.cpp
@@ -17,19 +17,19 @@
 #include "outputgen.h"
 
 void FileCodeParser::parseCode(CodeOutputInterface &codeOutIntf,
-               const char *,     // scopeName
+               const QCString &,    // scopeName
                const QCString &     input,
-               SrcLangExt,       // lang
-               bool,             // isExampleBlock
-               const char *,     // exampleName
+               SrcLangExt,          // lang
+               bool,                // isExampleBlock
+               const QCString &,    // exampleName
                FileDef *            fileDef,
                int                  startLine,
                int                  endLine,
-               bool,             // inlineFragment
-               const MemberDef *,  // memberDef
+               bool,                // inlineFragment
+               const MemberDef *,   // memberDef
                bool                 showLineNumbers,
-               const Definition *, // searchCtx,
-               bool              // collectXRefs
+               const Definition *,  // searchCtx,
+               bool                 // collectXRefs
               )
 {
   int lineNr = startLine!=-1 ? startLine : 1;
@@ -41,8 +41,11 @@ void FileCodeParser::parseCode(CodeOutputInterface &codeOutIntf,
     while (j<length && input[j]!='\n') j++;
     QCString lineStr = input.mid(i,j-i);
     codeOutIntf.startCodeLine(fileDef != 0 && showLineNumbers);
-    if (fileDef != 0 && showLineNumbers) codeOutIntf.writeLineNumber(0,0,0,lineNr);
-    if (!lineStr.isEmpty()) codeOutIntf.codify(lineStr);
+    if (fileDef != 0 && showLineNumbers)
+    {
+      codeOutIntf.writeLineNumber(QCString(),QCString(),QCString(),lineNr);
+    }
+    if (!lineStr.isEmpty()) codeOutIntf.codify(lineStr.data());
     codeOutIntf.endCodeLine();
     lineNr++;
     i=j+1;