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Implement GetLineFromStream that actually works and use it instead of getline

This commit is contained in:
Andy Cedilnik 2003-03-27 12:24:30 -05:00
parent b133b832fd
commit a9875aa62f
9 changed files with 109 additions and 93 deletions
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12
Source/cmCacheManager.cxx
View File

@ -125,16 +125,15 @@ bool cmCacheManager::LoadCache(const char* path,
{
return false;
}
const int bsize = 4096;
char buffer[bsize];
char *realbuffer;
const char *realbuffer;
std::string buffer;
std::string entryKey;
while(fin)
{
// Format is key:type=value
CacheEntry e;
fin.getline(buffer, bsize);
realbuffer = buffer;
cmSystemTools::GetLineFromStream(fin, buffer);
realbuffer = buffer.c_str();
while(*realbuffer != '0' &&
(*realbuffer == ' ' ||
*realbuffer == '\t' ||
@ -150,7 +149,8 @@ bool cmCacheManager::LoadCache(const char* path,
while(realbuffer[0] == '/' && realbuffer[1] == '/')
{
e.m_Properties["HELPSTRING"] += &realbuffer[2];
fin.getline(realbuffer, bsize);
cmSystemTools::GetLineFromStream(fin, buffer);
realbuffer = buffer.c_str();
if(!fin)
{
continue;

47
Source/cmConfigureFileCommand.cxx
View File

@ -105,49 +105,42 @@ void cmConfigureFileCommand::ConfigureFile()
// now copy input to output and expand variables in the
// input file at the same time
const int bufSize = 4096;
char buffer[bufSize];
std::string inLine;
cmRegularExpression cmdefine("#cmakedefine[ \t]*([A-Za-z_0-9]*)");
while(fin)
while( cmSystemTools::GetLineFromStream(fin, inLine) )
{
fin.getline(buffer, bufSize);
if(fin)
m_Makefile->ExpandVariablesInString(inLine, m_EscapeQuotes, m_AtOnly);
m_Makefile->RemoveVariablesInString(inLine, m_AtOnly);
// look for special cmakedefine symbol and handle it
// is the symbol defined
if (cmdefine.find(inLine))
{
inLine = buffer;
m_Makefile->ExpandVariablesInString(inLine, m_EscapeQuotes, m_AtOnly);
m_Makefile->RemoveVariablesInString(inLine, m_AtOnly);
// look for special cmakedefine symbol and handle it
// is the symbol defined
if (cmdefine.find(inLine))
const char *def = m_Makefile->GetDefinition(cmdefine.match(1).c_str());
if(!cmSystemTools::IsOff(def))
{
const char *def = m_Makefile->GetDefinition(cmdefine.match(1).c_str());
if(!cmSystemTools::IsOff(def))
{
cmSystemTools::ReplaceString(inLine,
"#cmakedefine", "#define");
fout << inLine << "\n";
}
else
{
cmSystemTools::ReplaceString(inLine,
"#cmakedefine", "#undef");
fout << "/* " << inLine << " */\n";
}
cmSystemTools::ReplaceString(inLine,
"#cmakedefine", "#define");
fout << inLine << "\n";
}
else
{
fout << inLine << "\n";
cmSystemTools::ReplaceString(inLine,
"#cmakedefine", "#undef");
fout << "/* " << inLine << " */\n";
}
}
else
{
fout << inLine << "\n";
}
}
// close the files before attempting to copy
fin.close();
fout.close();
cmSystemTools::CopyFileIfDifferent(tempOutputFile.c_str(),
m_OuputFile.c_str());
m_OuputFile.c_str());
cmSystemTools::RemoveFile(tempOutputFile.c_str());
}
}

32
Source/cmListFileCache.cxx
View File

@ -145,16 +145,12 @@ void cmListFileCache::FlushCache(const char* path)
}
}
inline void RemoveComments(char* ptr)
inline void RemoveComments(std::string& line)
{
while(*ptr)
std::string::size_type pos = line.find("#");
if (pos != std::string::npos )
{
if(*ptr == '#')
{
*ptr = 0;
break;
}
++ptr;
line.erase(pos);
}
}
@ -169,13 +165,12 @@ bool cmListFileCache::ParseFunction(std::ifstream& fin,
std::vector<cmListFileArgument>& arguments = function.m_Arguments;
name = "";
arguments = std::vector<cmListFileArgument>();
const int BUFFER_SIZE = 4096;
char inbuffer[BUFFER_SIZE];
std::string inbuffer;
if(!fin)
{
return false;
}
if(fin.getline(inbuffer, BUFFER_SIZE ) )
if(cmSystemTools::GetLineFromStream(fin, inbuffer) )
{
++line;
RemoveComments(inbuffer);
@ -185,12 +180,12 @@ bool cmListFileCache::ParseFunction(std::ifstream& fin,
cmRegularExpression lastLine("^(.*)\\)[ \t\r]*$");
// check for blank line or comment
if(blankLine.find(inbuffer) )
if(blankLine.find(inbuffer.c_str()) )
{
return false;
}
// look for a oneline fun(arg arg2)
else if(oneLiner.find(inbuffer))
else if(oneLiner.find(inbuffer.c_str()))
{
// the arguments are the second match
std::string args = oneLiner.match(2);
@ -201,7 +196,7 @@ bool cmListFileCache::ParseFunction(std::ifstream& fin,
return true;
}
// look for a start of a multiline with no trailing ")" fun(arg arg2
else if(multiLine.find(inbuffer))
else if(multiLine.find(inbuffer.c_str()))
{
name = multiLine.match(1);
std::string args = multiLine.match(2);
@ -212,15 +207,15 @@ bool cmListFileCache::ParseFunction(std::ifstream& fin,
while(!done)
{
// read lines until the end paren is found
if(fin.getline(inbuffer, BUFFER_SIZE ) )
if(cmSystemTools::GetLineFromStream(fin, inbuffer) )
{
++line;
RemoveComments(inbuffer);
// Check for comment lines and ignore them.
if(blankLine.find(inbuffer))
if(blankLine.find(inbuffer.c_str()))
{ continue; }
// Is this the last line?
if(lastLine.find(inbuffer))
if(lastLine.find(inbuffer.c_str()))
{
done = true;
std::string gargs = lastLine.match(1);
@ -228,8 +223,7 @@ bool cmListFileCache::ParseFunction(std::ifstream& fin,
}
else
{
std::string lineB = inbuffer;
cmListFileCache::GetArguments(lineB, arguments);
cmListFileCache::GetArguments(inbuffer, arguments);
}
}
else

19
Source/cmLocalVisualStudio6Generator.cxx
View File

@ -532,10 +532,9 @@ void cmLocalVisualStudio6Generator::SetBuildType(BuildType b,
m_Configurations.erase(m_Configurations.begin(), m_Configurations.end());
// now add all the configurations possible
char buffer[2048];
while(fin)
std::string line;
while(cmSystemTools::GetLineFromStream(fin, line))
{
fin.getline(buffer, 2048);
std::string line = buffer;
cmSystemTools::ReplaceString(line, "OUTPUT_LIBNAME_EXPORTS",
exportSymbol.c_str());
cmSystemTools::ReplaceString(line, "OUTPUT_LIBNAME",libName);
@ -844,10 +843,9 @@ void cmLocalVisualStudio6Generator::WriteDSPHeader(std::ostream& fout, const cha
}
char buffer[2048];
while(fin)
std::string line;
while(cmSystemTools::GetLineFromStream(fin, line))
{
fin.getline(buffer, 2048);
std::string line = buffer;
const char* mfcFlag = m_Makefile->GetDefinition("CMAKE_MFC_FLAG");
if(!mfcFlag)
{
@ -935,8 +933,6 @@ void cmLocalVisualStudio6Generator::WriteDSPHeader(std::ostream& fout, const cha
}
}
void cmLocalVisualStudio6Generator::WriteDSPFooter(std::ostream& fout)
{
std::ifstream fin(m_DSPFooterTemplate.c_str());
@ -945,10 +941,9 @@ void cmLocalVisualStudio6Generator::WriteDSPFooter(std::ostream& fout)
cmSystemTools::Error("Error Reading ",
m_DSPFooterTemplate.c_str());
}
char buffer[2048];
while(fin)
std::string line;
while(cmSystemTools::GetLineFromStream(fin, line))
{
fin.getline(buffer, 2048);
fout << buffer << std::endl;
fout << line << std::endl;
}
}

6
Source/cmMakeDepend.cxx
View File

@ -198,10 +198,10 @@ void cmMakeDepend::DependWalk(cmDependInformation* info)
}
// TODO: Write real read loop (see cmSystemTools::CopyFile).
char line[255];
for(fin.getline(line, 255); fin; fin.getline(line, 255))
std::string line;
while( cmSystemTools::GetLineFromStream(fin, line) )
{
if(includeLine.find(line))
if(includeLine.find(line.c_str()))
{
// extract the file being included
std::string includeFile = includeLine.match(1);

7
Source/cmOutputRequiredFilesCommand.cxx
View File

@ -34,11 +34,10 @@ void cmLBDepend::DependWalk(cmDependInformation* info)
return;
}
char line[255];
while(!fin.eof() && !fin.fail())
std::string line;
while(cmSystemTools::GetLineFromStream(fin, line))
{
fin.getline(line, 255);
if(!strncmp(line, "#include", 8))
if(!strncmp(line.c_str(), "#include", 8))
{
// if it is an include line then create a string class
std::string currentline = line;

37
Source/cmSystemTools.cxx
View File

@ -1330,10 +1330,10 @@ bool RunCommandViaSystem(const char* command,
return false;
}
bool multiLine = false;
while(fin)
std::string line;
while(cmSystemTools::GetLineFromStream(fin, line))
{
fin.getline(buffer, BUFFER_SIZE);
output += buffer;
output += line;
if(multiLine)
{
output += "\n";
@ -2404,6 +2404,37 @@ std::string cmSystemTools::MakeCindentifier(const char* s)
return str;
}
// Due to a buggy stream library on the HP and another on Mac OSX, we
// need this very carefully written version of getline. Returns true
// if any data were read before the end-of-file was reached.
bool cmSystemTools::GetLineFromStream(std::istream& is, std::string& line)
{
const int bufferSize = 1024;
char buffer[bufferSize];
line = "";
bool haveData = false;
// If no characters are read from the stream, the end of file has
// been reached.
while((is.getline(buffer, bufferSize), is.gcount() > 0))
{
haveData = true;
line.append(buffer);
// If newline character was read, the gcount includes the
// character, but the buffer does not. The end of line has been
// reached.
if(strlen(buffer) == static_cast<size_t>(is.gcount()-1))
{
break;
}
// The fail bit may be set. Clear it.
is.clear(is.rdstate() & ~std::ios::failbit);
}
return haveData;
}
#if defined(_MSC_VER) && defined(_DEBUG)
# include <crtdbg.h>
# include <stdio.h>

9
Source/cmSystemTools.h
View File

@ -377,6 +377,15 @@ public:
* DART.
*/
static void EnableMSVCDebugHook();
/**
* Read line from file. Make sure to get everything. Due to a buggy stream
* library on the HP and another on Mac OSX, we need this very carefully
* written version of getline. Returns true if any data were read before the
* end-of-file was reached.
*/
static bool GetLineFromStream(std::istream& istr, std::string& line);
protected:
// these two functions can be called from ConvertToOutputPath
/**

33
Source/cmUseMangledMesaCommand.cxx
View File

@ -98,34 +98,29 @@ CopyAndFullPathMesaHeader(const char* source,
cmRegularExpression glDirLine("(gl|GL)(/|\\\\)([^<\"]+)");
// regular expression for gl GL or xmesa in a file (match(1) of above)
cmRegularExpression glLine("(gl|GL|xmesa)");
while(fin)
while(cmSystemTools::GetLineFromStream(fin,inLine))
{
fin.getline(buffer, bufSize);
if(fin)
if(includeLine.find(inLine.c_str()))
{
inLine = buffer;
if(includeLine.find(inLine.c_str()))
std::string includeFile = includeLine.match(1);
if(glDirLine.find(includeFile.c_str()))
{
std::string includeFile = includeLine.match(1);
if(glDirLine.find(includeFile.c_str()))
{
std::string gfile = glDirLine.match(3);
fout << "#include \"" << outdir << "/" << gfile.c_str() << "\"\n";
}
else if(glLine.find(includeFile.c_str()))
{
fout << "#include \"" << outdir << "/" << includeLine.match(1).c_str() << "\"\n";
}
else
{
fout << inLine << "\n";
}
std::string gfile = glDirLine.match(3);
fout << "#include \"" << outdir << "/" << gfile.c_str() << "\"\n";
}
else if(glLine.find(includeFile.c_str()))
{
fout << "#include \"" << outdir << "/" << includeLine.match(1).c_str() << "\"\n";
}
else
{
fout << inLine << "\n";
}
}
else
{
fout << inLine << "\n";
}
}
// close the files before attempting to copy
fin.close();