Merge pull request #131 from albert-github/feature/bug_725516

Bug 725516 - In case of sections with the same name they are not reported.

8 files changed, 169 insertions, 53 deletions

diff --git a/src/commentscan.l b/src/commentscan.l
index fc53c57..3cd8f5f 100644
--- a/src/commentscan.l
+++ b/src/commentscan.l
@@ -553,7 +553,7 @@ static void addXRefItem(const char *listName,const char *itemTitle,
     item->text += " <p>";
     if (Doxygen::markdownSupport)
     {
-      item->text += processMarkdown(yyFileName,current,outputXRef);
+      item->text += processMarkdown(yyFileName,yyLineNr,current,outputXRef);
     }
     else
     {
@@ -575,7 +575,7 @@ static void addXRefItem(const char *listName,const char *itemTitle,
     ASSERT(item!=0);
     if (Doxygen::markdownSupport)
     {
-      item->text = processMarkdown(yyFileName,current,outputXRef);
+      item->text = processMarkdown(yyFileName,yyLineNr,current,outputXRef);
     }
     else
     {
@@ -593,11 +593,26 @@ static void addXRefItem(const char *listName,const char *itemTitle,
     {
       docEntry->doc += cmdString;
     }
-    SectionInfo *si=new SectionInfo(listName,anchorLabel,
-	                            g_sectionTitle,SectionInfo::Anchor,
-                                    g_sectionLevel);
-    Doxygen::sectionDict->append(anchorLabel,si);
-    docEntry->anchors->append(si);
+    SectionInfo *si = Doxygen::sectionDict->find(anchorLabel);
+    if (si)
+    {
+      if (si->lineNr != -1)
+      {
+        warn(listName,yyLineNr,"multiple use of section label '%s', (first occurrence: %s, line %d)",anchorLabel,si->fileName.data(),si->lineNr);
+      }
+      else
+      {
+        warn(listName,yyLineNr,"multiple use of section label '%s', (first occurrence: %s)",anchorLabel,si->fileName.data());
+      }
+    }
+    else
+    {
+      si=new SectionInfo(listName,yyLineNr,anchorLabel,
+                         g_sectionTitle,SectionInfo::Anchor,
+                         g_sectionLevel);
+      Doxygen::sectionDict->append(anchorLabel,si);
+      docEntry->anchors->append(si);
+    }
   }
   outputXRef.resize(0);
 }
@@ -643,18 +658,32 @@ static SectionInfo::SectionType sectionLevelToType(int level)
 
 static void addSection()
 {
-  // create a new section element
-  g_sectionTitle+=yytext;
-  g_sectionTitle=g_sectionTitle.stripWhiteSpace();
-  SectionInfo *si = new SectionInfo(yyFileName,g_sectionLabel,
+  SectionInfo *si = Doxygen::sectionDict->find(g_sectionLabel);
+  if (si)
+  {
+    if (si->lineNr != -1)
+    {
+      warn(yyFileName,yyLineNr,"multiple use of section label '%s', (first occurrence: %s, line %d)",g_sectionLabel.data(),si->fileName.data(),si->lineNr);
+    }
+    else
+    {
+      warn(yyFileName,yyLineNr,"multiple use of section label '%s', (first occurrence: %s)",g_sectionLabel.data(),si->fileName.data());
+    }
+  }
+  else
+  {
+    // create a new section element
+    g_sectionTitle+=yytext;
+    g_sectionTitle=g_sectionTitle.stripWhiteSpace();
+    si = new SectionInfo(yyFileName,yyLineNr,g_sectionLabel,
                           g_sectionTitle,sectionLevelToType(g_sectionLevel),g_sectionLevel);
 
-  // add section to this entry
-  current->anchors->append(si);
-
-  // add section to the global dictionary
-  Doxygen::sectionDict->append(g_sectionLabel,si);
+    // add section to this entry
+    current->anchors->append(si);
 
+    // add section to the global dictionary
+    Doxygen::sectionDict->append(g_sectionLabel,si);
+  }
 }
 
 //-----------------------------------------------------------------------------
@@ -1701,9 +1730,24 @@ RCSTAG    "$"{ID}":"[^\n$]+"$"
   /* ----- handle arguments of the anchor command ------- */
 
 <AnchorLabel>{LABELID}			{ // found argument
-                                          SectionInfo  *si = new SectionInfo(yyFileName,yytext,0,SectionInfo::Anchor,0);
-                                          Doxygen::sectionDict->append(yytext,si);
-  					  current->anchors->append(si);
+                                          SectionInfo *si = Doxygen::sectionDict->find(yytext);
+                                          if (si)
+                                          {
+                                            if (si->lineNr != -1)
+                                            {
+                                              warn(yyFileName,yyLineNr,"multiple use of section label '%s', (first occurrence: %s, line %d)",yytext,si->fileName.data(),si->lineNr);
+                                            }
+                                            else
+                                            {
+                                              warn(yyFileName,yyLineNr,"multiple use of section label '%s', (first occurrence: %s)",yytext,si->fileName.data());
+                                            }
+                                          }
+                                          else
+                                          {
+                                            si = new SectionInfo(yyFileName,yyLineNr,yytext,0,SectionInfo::Anchor,0);
+                                            Doxygen::sectionDict->append(yytext,si);
+  					    current->anchors->append(si);
+                                          }
 					  addOutput(yytext);
 					  BEGIN( Comment );
   					}
@@ -2876,9 +2920,9 @@ bool parseCommentBlock(/* in */     ParserInterface *parser,
 
   if (Doxygen::markdownSupport)
   {
-    current->brief      = processMarkdown(fileName,current,current->brief);
-    current->doc        = processMarkdown(fileName,current,current->doc);
-    current->inbodyDocs = processMarkdown(fileName,current,current->inbodyDocs);
+    current->brief      = processMarkdown(fileName,lineNr,current,current->brief);
+    current->doc        = processMarkdown(fileName,lineNr,current,current->doc);
+    current->inbodyDocs = processMarkdown(fileName,lineNr,current,current->inbodyDocs);
   }
 
   Debug::print(Debug::CommentScan,0,
diff --git a/src/doxygen.cpp b/src/doxygen.cpp
index 251f2b4..5b8b379 100644
--- a/src/doxygen.cpp
+++ b/src/doxygen.cpp
@@ -8643,15 +8643,30 @@ static void findMainPage(EntryNav *rootNav)
       Doxygen::mainPage->setShowToc(root->stat);
       addPageToContext(Doxygen::mainPage,rootNav);
           
-      // a page name is a label as well!
-      SectionInfo *si=new SectionInfo(
-          indexName,
+      SectionInfo *si = Doxygen::sectionDict->find(Doxygen::mainPage->name());
+      if (si)
+      {
+        if (si->lineNr != -1)
+        {
+          warn(root->fileName,root->startLine,"multiple use of section label '%s', (first occurrence: %s, line %d)",Doxygen::mainPage->name().data(),si->fileName.data(),si->lineNr);
+        }
+        else
+        {
+          warn(root->fileName,root->startLine,"multiple use of section label '%s', (first occurrence: %s)",Doxygen::mainPage->name().data(),si->fileName.data());
+        }
+      }
+      else
+      {
+        // a page name is a label as well! but should no be double either
+        si=new SectionInfo(
+          indexName, root->startLine,
           Doxygen::mainPage->name(),
           Doxygen::mainPage->title(),
           SectionInfo::Page,
           0); // level 0
-      Doxygen::sectionDict->append(indexName,si);
-      Doxygen::mainPage->addSectionsToDefinition(root->anchors);
+        Doxygen::sectionDict->append(indexName,si);
+        Doxygen::mainPage->addSectionsToDefinition(root->anchors);
+      }
     }
     else
     {
diff --git a/src/markdown.cpp b/src/markdown.cpp
index 6ae95fe..9605f31 100644
--- a/src/markdown.cpp
+++ b/src/markdown.cpp
@@ -48,6 +48,7 @@
 #include "commentcnv.h"
 #include "config.h"
 #include "section.h"
+#include "message.h"
 
 //-----------
 
@@ -90,6 +91,7 @@ static QDict<LinkRef> g_linkRefs(257);
 static action_t       g_actions[256];
 static Entry         *g_current;
 static QCString       g_fileName;
+static int            g_lineNr;
 
 // In case a markdown page starts with a level1 header, that header is used
 // as a title of the page, in effect making it a level0 header, so the
@@ -1690,12 +1692,27 @@ void writeOneLineHeaderOrRuler(GrowBuf &out,const char *data,int size)
       out.addStr(" ");
       out.addStr(header);
       out.addStr("\n");
-      SectionInfo *si = new SectionInfo(g_fileName,id,header,type,level);
-      if (g_current)
+      SectionInfo *si = Doxygen::sectionDict->find(header);
+      if (si)
       {
-        g_current->anchors->append(si);
+        if (si->lineNr != -1)
+        {
+          warn(g_fileName,g_lineNr,"multiple use of section label '%s', (first occurrence: %s, line %d)",header.data(),si->fileName.data(),si->lineNr);
+        }
+        else
+        {
+          warn(g_fileName,g_lineNr,"multiple use of section label '%s', (first occurrence: %s)",header.data(),si->fileName.data());
+        }
+      }
+      else
+      {
+        si = new SectionInfo(g_fileName,g_lineNr,id,header,type,level);
+        if (g_current)
+        {
+          g_current->anchors->append(si);
+        }
+        Doxygen::sectionDict->append(header,si);
       }
-      Doxygen::sectionDict->append(header,si);
     }
     else
     {
@@ -2020,13 +2037,28 @@ static QCString processBlocks(const QCString &s,int indent)
             out.addStr(" ");
             out.addStr(header);
             out.addStr("\n\n");
-            SectionInfo *si = new SectionInfo(g_fileName,id,header,
-                level==1 ? SectionInfo::Section : SectionInfo::Subsection,level);
-            if (g_current)
+            SectionInfo *si = Doxygen::sectionDict->find(header);
+            if (si)
             {
-              g_current->anchors->append(si);
+              if (si->lineNr != -1)
+              {
+                warn(g_fileName,g_lineNr,"multiple use of section label '%s', (first occurrence: %s, line %d)",header.data(),si->fileName.data(),si->lineNr);
+              }
+              else
+              {
+                warn(g_fileName,g_lineNr,"multiple use of section label '%s', (first occurrence: %s)",header.data(),si->fileName.data());
+              }
+            }
+            else
+            {
+              si = new SectionInfo(g_fileName,g_lineNr,id,header,
+                      level==1 ? SectionInfo::Section : SectionInfo::Subsection,level);
+              if (g_current)
+              {
+                g_current->anchors->append(si);
+              }
+              Doxygen::sectionDict->append(header,si);
             }
-            Doxygen::sectionDict->append(header,si);
           }
           else
           {
@@ -2214,7 +2246,7 @@ static QCString detab(const QCString &s,int &refIndent)
 
 //---------------------------------------------------------------------------
 
-QCString processMarkdown(const QCString &fileName,Entry *e,const QCString &input)
+QCString processMarkdown(const QCString &fileName,const int lineNr,Entry *e,const QCString &input)
 {
   static bool init=FALSE;
   if (!init)
@@ -2237,6 +2269,7 @@ QCString processMarkdown(const QCString &fileName,Entry *e,const QCString &input
   g_linkRefs.clear();
   g_current = e;
   g_fileName = fileName;
+  g_lineNr   = lineNr;
   static GrowBuf out;
   if (input.isEmpty()) return input;
   out.clear();
diff --git a/src/markdown.h b/src/markdown.h
index 8fd7677..5e35259 100644
--- a/src/markdown.h
+++ b/src/markdown.h
@@ -22,7 +22,7 @@
 class Entry;
 
 /** processes string \a s and converts markdown into doxygen/html commands. */
-QCString processMarkdown(const QCString &fileName,Entry *e,const QCString &s);
+QCString processMarkdown(const QCString &fileName,const int lineNr,Entry *e,const QCString &s);
 QCString markdownFileNameToId(const QCString &fileName);
 
 class MarkdownFileParser : public ParserInterface
diff --git a/src/marshal.cpp b/src/marshal.cpp
index a6b3e75..04f426d 100644
--- a/src/marshal.cpp
+++ b/src/marshal.cpp
@@ -139,6 +139,7 @@ void marshalSectionInfoList(StorageIntf *s, QList<SectionInfo> *anchors)
       marshalQCString(s,si->ref);
       marshalInt(s,(int)si->type);
       marshalQCString(s,si->fileName);
+      marshalInt(s,si->lineNr);
       marshalInt(s,si->level);
     }
   }
@@ -546,8 +547,9 @@ QList<SectionInfo> *unmarshalSectionInfoList(StorageIntf *s)
     QCString ref   = unmarshalQCString(s);
     SectionInfo::SectionType type = (SectionInfo::SectionType)unmarshalInt(s);
     QCString fileName = unmarshalQCString(s);
+    int lineNr = unmarshalInt(s);
     int level = unmarshalInt(s);
-    result->append(new SectionInfo(fileName,label,title,type,level,ref));
+    result->append(new SectionInfo(fileName,lineNr,label,title,type,level,ref));
   }
   return result;
 }
diff --git a/src/section.h b/src/section.h
index 431c63b..7df4166 100644
--- a/src/section.h
+++ b/src/section.h
@@ -33,17 +33,23 @@ struct SectionInfo
                      Paragraph     = 4, 
                      Anchor        = 5 
                    };
-  SectionInfo(const char *f,const char *l,const char *t,
+  SectionInfo(const char *f,const int lin,const char *l,const char *t,
               SectionType st,int lev,const char *r=0) :
     label(l), title(t), type(st), ref(r), definition(0), 
-    fileName(f), generated(FALSE), level(lev)
+    fileName(f), generated(FALSE), level(lev), lineNr(lin)
   { 
   }
   SectionInfo(const SectionInfo &s)
   {
-    label=s.label.copy(); title=s.title.copy(); ref=s.ref.copy();
-    type =s.type; definition=s.definition;
-    fileName=s.fileName.copy(); generated=s.generated;
+    label=s.label.copy();
+    title=s.title.copy();
+    type =s.type;
+    ref=s.ref.copy();
+    definition=s.definition;
+    fileName=s.fileName.copy();
+    lineNr=s.lineNr;
+    generated=s.generated;
+    level=s.level;
   }
  ~SectionInfo() {}
   QCString label; 
@@ -52,6 +58,7 @@ struct SectionInfo
   QCString ref;
   Definition *definition;
   QCString fileName;
+  int lineNr;
   bool generated;
   int level;
 };
diff --git a/src/tagreader.cpp b/src/tagreader.cpp
index 467781a..036e24f 100644
--- a/src/tagreader.cpp
+++ b/src/tagreader.cpp
@@ -1120,7 +1120,7 @@ void TagFileParser::addDocAnchors(Entry *e,const TagAnchorInfoList &l)
     {
       //printf("New sectionInfo file=%s anchor=%s\n",
       //    ta->fileName.data(),ta->label.data());
-      SectionInfo *si=new SectionInfo(ta->fileName,ta->label,ta->title,
+      SectionInfo *si=new SectionInfo(ta->fileName,-1,ta->label,ta->title,
           SectionInfo::Anchor,0,m_tagName);
       Doxygen::sectionDict->append(ta->label,si);
       e->anchors->append(si);
diff --git a/src/util.cpp b/src/util.cpp
index bc93446..0452fbb 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -6280,14 +6280,29 @@ PageDef *addRelatedPage(const char *name,const QCString &ptitle,
       {
         file=pd->getOutputFileBase();
       }
-      SectionInfo *si=new SectionInfo(
-          file,pd->name(),pd->title(),SectionInfo::Page,0,pd->getReference());
-      //printf("si->label=`%s' si->definition=%s si->fileName=`%s'\n",
-      //      si->label.data(),si->definition?si->definition->name().data():"<none>",
-      //      si->fileName.data());
-      //printf("  SectionInfo: sec=%p sec->fileName=%s\n",si,si->fileName.data());
-      //printf("Adding section key=%s si->fileName=%s\n",pageName.data(),si->fileName.data());
-      Doxygen::sectionDict->append(pd->name(),si);
+      SectionInfo *si = Doxygen::sectionDict->find(pd->name());
+      if (si)
+      {
+        if (si->lineNr != -1)
+        {
+          warn(file,-1,"multiple use of section label '%s', (first occurrence: %s, line %d)",pd->name().data(),si->fileName.data(),si->lineNr);
+        }
+        else
+        {
+          warn(file,-1,"multiple use of section label '%s', (first occurrence: %s)",pd->name().data(),si->fileName.data());
+        }
+      }
+      else
+      {
+        si=new SectionInfo(
+            file,-1,pd->name(),pd->title(),SectionInfo::Page,0,pd->getReference());
+        //printf("si->label=`%s' si->definition=%s si->fileName=`%s'\n",
+        //      si->label.data(),si->definition?si->definition->name().data():"<none>",
+        //      si->fileName.data());
+        //printf("  SectionInfo: sec=%p sec->fileName=%s\n",si,si->fileName.data());
+        //printf("Adding section key=%s si->fileName=%s\n",pageName.data(),si->fileName.data());
+        Doxygen::sectionDict->append(pd->name(),si);
+      }
     }
   }
   return pd;