ENH: Initial import of java parser

1 files changed, 433 insertions, 0 deletions

diff --git a/Source/cmDependsJavaParserHelper.cxx b/Source/cmDependsJavaParserHelper.cxx
new file mode 100644
index 0000000..3edbf13
--- /dev/null
+++ b/Source/cmDependsJavaParserHelper.cxx
@@ -0,0 +1,433 @@
+/*=========================================================================
+
+  Program:   CMake - Cross-Platform Makefile Generator
+  Module:    $RCSfile$
+  Language:  C++
+  Date:      $Date$
+  Version:   $Revision$
+
+  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even 
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#include "cmDependsJavaParserHelper.h"
+
+#include "cmSystemTools.h"
+#include "cmDependsJavaLexer.h"
+
+int cmDependsJava_yyparse( yyscan_t yyscanner );
+
+cmDependsJavaParserHelper::cmDependsJavaParserHelper()
+{
+  this->CurrentDepth = 0;
+
+  this->UnionsAvailable = 0;
+  this->LastClassId = 0;
+
+  CurrentClass tl;
+  tl.Name = "*";
+  this->ClassStack.push_back(tl);
+}
+
+
+cmDependsJavaParserHelper::~cmDependsJavaParserHelper()
+{
+  this->CleanupParser();
+}
+
+void cmDependsJavaParserHelper::CurrentClass::AddFileNamesForPrinting(std::vector<cmStdString> *files, const char* prefix, const char* sep)
+{
+  cmStdString rname = "";
+  if ( prefix )
+    {
+    rname += prefix;
+    rname += sep;
+    }
+  rname += this->Name;
+  files->push_back(rname);
+  std::vector<CurrentClass>::iterator it;
+  for ( it = this->NestedClasses.begin();
+    it != this->NestedClasses.end();
+    ++ it )
+    {
+    it->AddFileNamesForPrinting(files, rname.c_str(), sep);
+    }
+}
+
+void cmDependsJavaParserHelper::DeallocateParserType(char** pt)
+{
+  if (!pt)
+    {
+    return;
+    }
+  if (!*pt)
+    {
+    //*pt = 0;
+    return;
+    }
+  // std::cout << (void*) *pt << " " << *pt << " this->DeallocateParserType" << std::endl;
+  //delete [] *pt;
+  *pt = 0;
+  this->UnionsAvailable --;
+}
+
+void cmDependsJavaParserHelper::AddClassFound(const char* sclass)
+{
+  if( ! sclass )
+    {
+    return;
+    }
+  std::vector<cmStdString>::iterator it;
+  for ( it = this->ClassesFound.begin();
+    it != this->ClassesFound.end();
+    it ++ )
+    {
+    if ( *it == sclass )
+      {
+      return;
+      }
+    }
+  this->ClassesFound.push_back(sclass);
+}
+
+void cmDependsJavaParserHelper::AddPackagesImport(const char* sclass)
+{
+  std::vector<cmStdString>::iterator it;
+  for ( it = this->PackagesImport.begin();
+    it != this->PackagesImport.end();
+    it ++ )
+    {
+    if ( *it == sclass )
+      {
+      return;
+      }
+    }
+  this->PackagesImport.push_back(sclass);
+}
+
+void cmDependsJavaParserHelper::SafePrintMissing(const char* str, int line, int cnt)
+{
+  if ( str )
+    {
+    //std::cout << (void*) str << " JPSafePrintMissing" << std::endl;
+    std::cout << line << " String " << cnt << " exists: ";
+    unsigned int cc;
+    for ( cc = 0; cc < strlen(str); cc ++ )
+      {
+      unsigned char ch = str[cc];
+      if ( ch >= 32 && ch <= 126 )
+        {
+        std::cout << (char)ch;
+        }
+      else
+        {
+        std::cout << "<" << (int)ch << ">";
+        break;
+        }
+      }
+    std::cout << "- " << strlen(str) << std::endl;
+    }
+}
+void cmDependsJavaParserHelper::Print(const char* place, const char* str)
+{
+  if ( this->Verbose )
+    {
+    std::cout << "[" << place << "=" << str << "]" << std::endl;
+    }
+}
+
+void cmDependsJavaParserHelper::CombineUnions(char** out, const char* in1, char** in2,
+  const char* sep)
+{
+  int len = 1;
+  if ( in1 )
+    {
+    len += strlen(in1);
+    }
+  if ( *in2 )
+    {
+    len += strlen(*in2);
+    }
+  if ( sep )
+    {
+    len += strlen(sep);
+    }
+  *out = new char [ len ];
+  *out[0] = 0;
+  if ( in1 )
+    {
+    strcat(*out, in1);
+    }
+  if ( sep )
+    {
+    strcat(*out, sep);
+    }
+  if ( *in2 )
+    {
+    strcat(*out, *in2);
+    }
+  if ( *in2 )
+    {
+    this->DeallocateParserType(in2);
+    }
+  // std::cout << (void*) *out << " " << *out << " JPAllocateParserType" << std::endl;
+  this->UnionsAvailable ++;
+}
+
+void cmDependsJavaParserHelper::CheckEmpty(int line, int cnt, cmDependsJavaParserHelper::ParserType* pt)
+{
+  int cc;
+  int kk = -cnt + 1;
+  for ( cc = 1; cc <= cnt; cc ++)
+    {
+    cmDependsJavaParserHelper::ParserType* cpt = pt + kk;
+    this->SafePrintMissing(cpt->str, line, cc);
+    kk ++;
+    }
+}
+
+void cmDependsJavaParserHelper::PrepareElement(cmDependsJavaParserHelper::ParserType* me)
+{
+  // Inititalize self
+  me->str = 0;
+}
+
+void cmDependsJavaParserHelper::AllocateParserType(cmDependsJavaParserHelper::ParserType* pt, 
+  const char* str, int len = 0)
+{
+  pt->str = 0;
+  if ( len == 0 )
+    {
+    len = strlen(str);
+    }
+  if ( len == 0 )
+    {
+    return;
+    }
+  this->UnionsAvailable ++;
+  pt->str = new char[ len + 1 ];
+  strncpy(pt->str, str, len);
+  pt->str[len] = 0;
+  this->Allocates.push_back(pt->str);
+  // std::cout << (void*) pt->str << " " << pt->str << " JPAllocateParserType" << std::endl;
+}
+
+void cmDependsJavaParserHelper::StartClass(const char* cls)
+{
+  CurrentClass cl;
+  cl.Name = cls;
+  this->ClassStack.push_back(cl);
+
+  this->CurrentDepth ++;
+}
+
+void cmDependsJavaParserHelper::EndClass()
+{
+  CurrentClass* parent = 0;
+  CurrentClass* current = 0;
+  if ( this->ClassStack.size() > 0 )
+    {
+    current = &(*(this->ClassStack.end() - 1));
+    if ( this->ClassStack.size() > 1 )
+      {
+      parent = &(*(this->ClassStack.end() - 2));
+      }
+    }
+  if ( current == 0 )
+    {
+    std::cerr << "Error when parsing. Current class is null" << std::endl;
+    abort();
+    }
+  if ( parent == 0 )
+    {
+    std::cerr << "Error when parsing. Parent class is null" << std::endl;
+    abort();
+    }
+  this->CurrentDepth --;
+  parent->NestedClasses.push_back(*current);
+  this->ClassStack.erase(this->ClassStack.end()-1, this->ClassStack.end());
+}
+
+void cmDependsJavaParserHelper::PrintClasses()
+{
+  if ( this->ClassStack.size() == 0 )
+    {
+    std::cerr << "Error when parsing. No classes on class stack" << std::endl;
+    abort();
+    }
+  std::vector<cmStdString> files = this->GetFilesProduced();
+  std::vector<cmStdString>::iterator sit;
+  for ( sit = files.begin();
+    sit != files.end();
+    ++ sit )
+    {
+    std::cout << "  " << sit->c_str() << ".class" << std::endl;
+    }
+}
+
+std::vector<cmStdString> cmDependsJavaParserHelper::GetFilesProduced()
+{
+  std::vector<cmStdString> files;
+  CurrentClass* toplevel = &(*(this->ClassStack.begin()));
+  std::vector<CurrentClass>::iterator it;
+  for ( it = toplevel->NestedClasses.begin(); 
+    it != toplevel->NestedClasses.end();
+    ++ it )
+    {
+    it->AddFileNamesForPrinting(&files, 0, "$");
+    }
+  return files;
+}
+
+int cmDependsJavaParserHelper::ParseString(const char* str, int verb)
+{
+  if ( !str)
+    {
+    return 0;
+    }
+  //printf("Do some parsing: %s\n", str);
+
+  this->Verbose = verb;
+  this->InputBuffer = str;
+  this->InputBufferPos = 0;
+  this->CurrentLine = 0;
+  
+
+  yyscan_t yyscanner;
+  cmDependsJava_yylex_init(&yyscanner);
+  cmDependsJava_yyset_extra(this, yyscanner);
+  int res = cmDependsJava_yyparse(yyscanner);
+  cmDependsJava_yylex_destroy(yyscanner);
+  if ( res != 0 )
+    {
+    std::cout << "JP_Parse returned: " << res << std::endl;
+    return 0;
+    }
+
+  if ( verb )
+    {
+    if ( this->CurrentPackage.size() > 0 )
+      {
+      std::cout << "Current package is: " << this->CurrentPackage.c_str() << std::endl;
+      }
+    std::cout << "Imports packages:";
+    if ( this->PackagesImport.size() > 0 )
+      {
+      std::vector<cmStdString>::iterator it;
+      for ( it = this->PackagesImport.begin();
+        it != this->PackagesImport.end();
+        ++ it )
+        {
+        std::cout << " " << it->c_str();
+        }
+      }
+    std::cout << std::endl;
+    std::cout << "Depends on:";
+    if ( this->ClassesFound.size() > 0 )
+      {
+      std::vector<cmStdString>::iterator it;
+      for ( it = this->ClassesFound.begin();
+        it != this->ClassesFound.end();
+        ++ it )
+        {
+        std::cout << " " << it->c_str();
+        }
+      }
+    std::cout << std::endl;
+    std::cout << "Generated files:" << std::endl;
+    this->PrintClasses();
+    if ( this->UnionsAvailable != 0 )
+      {
+      std::cout << "There are still " << this->UnionsAvailable << " unions available" << std::endl;
+      //return 0;
+      }
+    }
+  this->CleanupParser();
+  return 1;
+}
+
+void cmDependsJavaParserHelper::CleanupParser()
+{
+  std::vector<char*>::iterator it;
+  for ( it = this->Allocates.begin(); 
+    it != this->Allocates.end();
+    ++ it )
+    {
+    delete [] *it;
+    }
+  this->Allocates.erase(this->Allocates.begin(), 
+    this->Allocates.end());
+}
+
+int cmDependsJavaParserHelper::LexInput(char* buf, int maxlen)
+{
+  //std::cout << "JPLexInput ";
+  //std::cout.write(buf, maxlen);
+  //std::cout << std::endl;
+  if ( maxlen < 1 )
+    {
+    return 0;
+    }
+  if ( this->InputBufferPos < this->InputBuffer.size() )
+    {
+    buf[0] = this->InputBuffer[ this->InputBufferPos++ ];
+    if ( buf[0] == '\n' )
+      {
+      this->CurrentLine ++;
+      }
+    return(1);
+    }
+  else
+    {
+    buf[0] = '\n';
+    return( 0 );
+    }
+}
+void cmDependsJavaParserHelper::Error(const char* str)
+{
+  fprintf(stderr, "JPError: %s (%d / Line: %d)\n", str, this->InputBufferPos, this->CurrentLine);
+  int cc;
+  std::cerr << "String: [";
+  for ( cc = 0; cc < 30 && *(this->InputBuffer.c_str() + this->InputBufferPos + cc);
+    cc ++ )
+    {
+    std::cerr << *(this->InputBuffer.c_str() + this->InputBufferPos + cc);
+    }
+  std::cerr << "]" << std::endl;
+}
+
+void cmDependsJavaParserHelper::UpdateCombine(const char* str1, const char* str2)
+{
+  if ( this->CurrentCombine == "" && str1 != 0)
+    {
+    this->CurrentCombine = str1;
+    }
+  this->CurrentCombine += ".";
+  this->CurrentCombine += str2;
+}
+
+int cmDependsJavaParserHelper::ParseFile(const char* file)
+{
+  if ( !cmSystemTools::FileExists(file))
+    {
+    return 0;
+    }
+  std::ifstream ifs(file);
+  if ( !ifs )
+    {
+    return 0;
+    }
+
+  cmStdString fullfile = "";
+  cmStdString line;
+  while ( cmSystemTools::GetLineFromStream(ifs, line) )
+    {
+    fullfile += line + "\n";
+    }
+  return this->ParseString(fullfile.c_str(), 0);
+}
+