definition.h File Reference

#include <vector>
#include "types.h"
#include "reflist.h"
#include "construct.h"
#include "requirement.h"

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Classes
struct	DocInfo
	Data associated with a detailed description. More...
struct	BriefInfo
	Data associated with a brief description. More...
struct	BodyInfo
	Data associated with description found in the body. More...
class	Definition
	The common base class of all entity definitions found in the sources. More...
class	DefinitionMutable

Functions
Definition *	toDefinition (DefinitionMutable *dm)
DefinitionMutable *	toDefinitionMutable (Definition *d)
bool	readCodeFragment (const DString &fileName, bool isMacro, int &startLine, int &endLine, DString &result)
	Reads a fragment from file fileName starting with line startLine and ending with line endLine.

Function Documentation

readCodeFragment()

bool readCodeFragment	(	const DString &	fileName,
		bool	isMacro,
		int &	startLine,
		int &	endLine,
		DString &	result )

Reads a fragment from file fileName starting with line startLine and ending with line endLine.

The result is returned as a string via result. The function returns true if successful and false in case of an error.

Reads a fragment of code from file fileName starting at line startLine and ending at line endLine (inclusive). The fragment is stored in result. If false is returned the code fragment could not be found.

The file is scanned for a opening bracket ('{') from startLine onward The line actually containing the bracket is returned via startLine. The file is scanned for a closing bracket ('}') from endLine backward. The line actually containing the bracket is returned via endLine. Note that for VHDL code the bracket search is not done.

Definition at line 764 of file definition.cpp.

{
  bool filterSourceFiles = Config_getBool(FILTER_SOURCE_FILES);
  DString filter = getFileFilter(fileName,true);
  bool usePipe = !filter.empty() && filterSourceFiles;
  int tabSize = Config_getInt(TAB_SIZE);
  SrcLangExt lang = getLanguageFromFileName(fileName);
  const int blockSize = 4096;
  std::string str;
  FilterCache::instance().getFileContents(fileName,
                                          static_cast<size_t>(std::max(1,startLine)),
                                          static_cast<size_t>(std::max({1,startLine,endLine})),str);
  //printf("readCodeFragment(%s,startLine=%d,endLine=%d)=\n[[[\n%s]]]\n",qPrint(fileName),startLine,endLine,qPrint(str));
 
  bool found = lang==SrcLangExt::VHDL   ||
               lang==SrcLangExt::Python ||
               lang==SrcLangExt::Fortran ||
               isMacro;
               // for VHDL, Python, and Fortran no bracket search is possible
  char *p=str.data();
  if (p && *p)
  {
    char c=0;
    int col=0;
    int lineNr=startLine;
    // skip until the opening bracket or lonely : is found
    char cn=0;
    while (*p && !found)
    {
      int pc=0;
      while ((c=*p++)!='{' && c!=':' && c!='=' && c!=0)
      {
        //printf("parsing char '%c'\n",c);
        if (c=='\n')
        {
          lineNr++;
          col = 0;
        }
        else if (c=='\t')
        {
          col+=tabSize - (col%tabSize);
        }
        else if (pc=='/' && c=='/') // skip single line comment
        {
          while ((c=*p++)!='\n' && c!=0);
          if (c == '\n')
          {
            lineNr++;
            col = 0;
          }
        }
        else if (pc=='/' && c=='*') // skip C style comment
        {
          while (((c=*p++)!='/' || pc!='*') && c!=0)
          {
            if (c == '\n')
            {
              lineNr++;
              col = 0;
            }
            pc=c;
          }
        }
        else
        {
          col++;
        }
        pc = c;
      }
      if (c==':')
      {
        cn=*p++;
        if (cn!=':') found=true;
      }
      else if (c=='=')
      {
        cn=*p++;
        if (cn=='>') // C# Expression body
        {
          found=true;
        }
      }
      else if (c=='{')
      {
        found=true;
      }
      else if (c==0)
      {
        break;
      }
    }
    //printf(" -> readCodeFragment(%s,%d,%d) lineNr=%d\n",fileName,startLine,endLine,lineNr);
    if (found)
    {
      // For code with more than one line,
      // fill the line with spaces until we are at the right column
      // so that the opening brace lines up with the closing brace
      if (endLine!=startLine)
      {
        DString spaces;
        spaces.fill(' ',col);
        result+=spaces;
      }
      // copy until end of line
      if (c) result+=c;
      startLine=lineNr;
      if (c==':' || c=='=')
      {
        result+=cn;
        if (cn=='\n') lineNr++;
      }
      char lineStr[blockSize];
      do
      {
        //printf("reading line %d in range %d-%d\n",lineNr,startLine,endLine);
        int size_read=0;
        do
        {
          // read up to blockSize-1 non-zero characters
          int i=0;
          while ((c=*p) && i<blockSize-1)
          {
            lineStr[i++]=c;
            p++;
            if (c=='\n') break; // stop at end of the line
          }
          lineStr[i]=0;
          size_read=i;
          result+=lineStr; // append line to the output
        } while (size_read == (blockSize-1)); // append more if line does not fit in buffer
        lineNr++;
      } while (*p);
 
      // strip stuff after closing bracket
      size_t newLineIndex = result.rfind('\n');
      size_t braceIndex   = result.rfind('}');
      if (newLineIndex!=DString::npos && braceIndex!=DString::npos && braceIndex > newLineIndex)
      {
        result.resize(braceIndex+1);
      }
      endLine=lineNr-1;
    }
    if (usePipe)
    {
      Debug::print(Debug::FilterOutput, 0, "Filter output\n");
      Debug::print(Debug::FilterOutput,0,"-------------\n{}\n-------------\n",result);
    }
  }
  DString encoding = getEncoding(FileInfo(fileName.str()));
  if (encoding!="UTF-8")
  {
    std::string encBuf = result.str();
    bool ok = transcodeCharacterStringToUTF8(encBuf,encoding.data());
    if (ok)
    {
      result = encBuf;
    }
    else
    {
      err("failed to transcode characters in code fragment in file {} lines {} to {}, from input encoding {} to UTF-8\n",
          fileName,startLine,endLine,encoding);
 
    }
  }
  if (!result.empty() && result.at(result.length()-1)!='\n') result += "\n";
  //printf("readCodeFragment(%d-%d)=%s\n",startLine,endLine,qPrint(result));
  return found;
}

References DString::at(), Config_getBool, Config_getInt, DString::data(), DString::empty(), err, FileInfo::FileInfo(), DString::fill(), Debug::FilterOutput, getEncoding(), FilterCache::getFileContents(), getFileFilter(), getLanguageFromFileName(), FilterCache::instance(), DString::length(), DString::npos, Debug::print(), readCodeFragment(), DString::resize(), DString::rfind(), DString::str(), and transcodeCharacterStringToUTF8().

Referenced by VhdlDocGen::createFlowChart(), readCodeFragment(), DefinitionMutable::toDefinition_(), and DefinitionImpl::writeInlineCode().

toDefinition()

Definition * toDefinition

(

DefinitionMutable *

dm

)

Definition at line 395 of file definition.cpp.

{
  return dm ? dm->toDefinition_() : nullptr;
}

Referenced by buildScopeFromQualifiedName(), endFileWithNavPath(), findScopeFromQualifiedName(), toClassDef(), toConceptDef(), toMemberDef(), toNamespaceDef(), and MemberList::writeDocumentationPage().

toDefinitionMutable()

DefinitionMutable * toDefinitionMutable

(

Definition *

d

)

Definition at line 303 of file definition.cpp.

{
  return d ? d->toDefinitionMutable_() : nullptr;
}

Referenced by addConceptToContext(), buildNamespaceList(), buildScopeFromQualifiedName(), computeTooltipTexts(), createTagLessInstance(), resolveClassNestingRelations(), and DefinitionMutable::toDefinition_().