368 lines
8.8 KiB
C++
368 lines
8.8 KiB
C++
/*============================================================================
|
|
CMake - Cross Platform Makefile Generator
|
|
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
|
|
|
|
Distributed under the OSI-approved BSD License (the "License");
|
|
see accompanying file Copyright.txt for details.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY; without even the
|
|
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
See the License for more information.
|
|
============================================================================*/
|
|
#include "cmCommandArgumentParserHelper.h"
|
|
|
|
#include "cmSystemTools.h"
|
|
#include "cmMakefile.h"
|
|
|
|
#include "cmCommandArgumentLexer.h"
|
|
|
|
int cmCommandArgument_yyparse( yyscan_t yyscanner );
|
|
//
|
|
cmCommandArgumentParserHelper::cmCommandArgumentParserHelper()
|
|
{
|
|
this->WarnUninitialized = false;
|
|
this->CheckSystemVars = false;
|
|
this->FileLine = -1;
|
|
this->FileName = 0;
|
|
this->RemoveEmpty = true;
|
|
this->EmptyVariable[0] = 0;
|
|
strcpy(this->DCURLYVariable, "${");
|
|
strcpy(this->RCURLYVariable, "}");
|
|
strcpy(this->ATVariable, "@");
|
|
strcpy(this->DOLLARVariable, "$");
|
|
strcpy(this->LCURLYVariable, "{");
|
|
strcpy(this->BSLASHVariable, "\\");
|
|
|
|
this->NoEscapeMode = false;
|
|
this->ReplaceAtSyntax = false;
|
|
}
|
|
|
|
|
|
cmCommandArgumentParserHelper::~cmCommandArgumentParserHelper()
|
|
{
|
|
this->CleanupParser();
|
|
}
|
|
|
|
void cmCommandArgumentParserHelper::SetLineFile(long line, const char* file)
|
|
{
|
|
this->FileLine = line;
|
|
this->FileName = file;
|
|
}
|
|
|
|
char* cmCommandArgumentParserHelper::AddString(const std::string& str)
|
|
{
|
|
if ( str.empty() )
|
|
{
|
|
return this->EmptyVariable;
|
|
}
|
|
char* stVal = new char[str.size()+1];
|
|
strcpy(stVal, str.c_str());
|
|
this->Variables.push_back(stVal);
|
|
return stVal;
|
|
}
|
|
|
|
char* cmCommandArgumentParserHelper::ExpandSpecialVariable(const char* key,
|
|
const char* var)
|
|
{
|
|
if ( !key )
|
|
{
|
|
return this->ExpandVariable(var);
|
|
}
|
|
if(!var)
|
|
{
|
|
return this->EmptyVariable;
|
|
}
|
|
if ( strcmp(key, "ENV") == 0 )
|
|
{
|
|
char *ptr = getenv(var);
|
|
if (ptr)
|
|
{
|
|
if (this->EscapeQuotes)
|
|
{
|
|
return this->AddString(cmSystemTools::EscapeQuotes(ptr));
|
|
}
|
|
else
|
|
{
|
|
return ptr;
|
|
}
|
|
}
|
|
return this->EmptyVariable;
|
|
}
|
|
if ( strcmp(key, "CACHE") == 0 )
|
|
{
|
|
if(const char* c = this->Makefile->GetCacheManager()->GetCacheValue(var))
|
|
{
|
|
if(this->EscapeQuotes)
|
|
{
|
|
return this->AddString(cmSystemTools::EscapeQuotes(c));
|
|
}
|
|
else
|
|
{
|
|
return this->AddString(c);
|
|
}
|
|
}
|
|
return this->EmptyVariable;
|
|
}
|
|
cmOStringStream e;
|
|
e << "Syntax $" << key << "{} is not supported. "
|
|
<< "Only ${}, $ENV{}, and $CACHE{} are allowed.";
|
|
this->SetError(e.str());
|
|
return 0;
|
|
}
|
|
|
|
char* cmCommandArgumentParserHelper::ExpandVariable(const char* var)
|
|
{
|
|
if(!var)
|
|
{
|
|
return 0;
|
|
}
|
|
if(this->FileLine >= 0 && strcmp(var, "CMAKE_CURRENT_LIST_LINE") == 0)
|
|
{
|
|
cmOStringStream ostr;
|
|
ostr << this->FileLine;
|
|
return this->AddString(ostr.str());
|
|
}
|
|
const char* value = this->Makefile->GetDefinition(var);
|
|
if(!value && !this->RemoveEmpty)
|
|
{
|
|
// check to see if we need to print a warning
|
|
// if strict mode is on and the variable has
|
|
// not been "cleared"/initialized with a set(foo ) call
|
|
if(this->WarnUninitialized && !this->Makefile->VariableInitialized(var))
|
|
{
|
|
if (this->CheckSystemVars ||
|
|
cmSystemTools::IsSubDirectory(this->FileName,
|
|
this->Makefile->GetHomeDirectory()) ||
|
|
cmSystemTools::IsSubDirectory(this->FileName,
|
|
this->Makefile->GetHomeOutputDirectory()))
|
|
{
|
|
cmOStringStream msg;
|
|
cmListFileBacktrace bt;
|
|
cmListFileContext lfc;
|
|
lfc.FilePath = this->FileName;
|
|
lfc.Line = this->FileLine;
|
|
bt.push_back(lfc);
|
|
msg << "uninitialized variable \'" << var << "\'";
|
|
this->Makefile->GetCMakeInstance()->IssueMessage(cmake::AUTHOR_WARNING,
|
|
msg.str(), bt);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
if (this->EscapeQuotes && value)
|
|
{
|
|
return this->AddString(cmSystemTools::EscapeQuotes(value));
|
|
}
|
|
return this->AddString(value ? value : "");
|
|
}
|
|
|
|
char* cmCommandArgumentParserHelper::ExpandVariableForAt(const char* var)
|
|
{
|
|
if(this->ReplaceAtSyntax)
|
|
{
|
|
// try to expand the variable
|
|
char* ret = this->ExpandVariable(var);
|
|
// if the return was 0 and we want to replace empty strings
|
|
// then return an empty string
|
|
if(!ret && this->RemoveEmpty)
|
|
{
|
|
return this->AddString("");
|
|
}
|
|
// if the ret was not 0, then return it
|
|
if(ret)
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
// at this point we want to put it back because of one of these cases:
|
|
// - this->ReplaceAtSyntax is false
|
|
// - this->ReplaceAtSyntax is true, but this->RemoveEmpty is false,
|
|
// and the variable was not defined
|
|
std::string ref = "@";
|
|
ref += var;
|
|
ref += "@";
|
|
return this->AddString(ref);
|
|
}
|
|
|
|
char* cmCommandArgumentParserHelper::CombineUnions(char* in1, char* in2)
|
|
{
|
|
if ( !in1 )
|
|
{
|
|
return in2;
|
|
}
|
|
else if ( !in2 )
|
|
{
|
|
return in1;
|
|
}
|
|
size_t len = strlen(in1) + strlen(in2) + 1;
|
|
char* out = new char [ len ];
|
|
strcpy(out, in1);
|
|
strcat(out, in2);
|
|
this->Variables.push_back(out);
|
|
return out;
|
|
}
|
|
|
|
void cmCommandArgumentParserHelper::AllocateParserType
|
|
(cmCommandArgumentParserHelper::ParserType* pt,const char* str, int len)
|
|
{
|
|
pt->str = 0;
|
|
if ( len == 0 )
|
|
{
|
|
len = static_cast<int>(strlen(str));
|
|
}
|
|
if ( len == 0 )
|
|
{
|
|
return;
|
|
}
|
|
pt->str = new char[ len + 1 ];
|
|
strncpy(pt->str, str, len);
|
|
pt->str[len] = 0;
|
|
this->Variables.push_back(pt->str);
|
|
}
|
|
|
|
bool cmCommandArgumentParserHelper::HandleEscapeSymbol
|
|
(cmCommandArgumentParserHelper::ParserType* pt, char symbol)
|
|
{
|
|
switch ( symbol )
|
|
{
|
|
case '\\':
|
|
case '"':
|
|
case ' ':
|
|
case '#':
|
|
case '(':
|
|
case ')':
|
|
case '$':
|
|
case '@':
|
|
case '^':
|
|
this->AllocateParserType(pt, &symbol, 1);
|
|
break;
|
|
case ';':
|
|
this->AllocateParserType(pt, "\\;", 2);
|
|
break;
|
|
case 't':
|
|
this->AllocateParserType(pt, "\t", 1);
|
|
break;
|
|
case 'n':
|
|
this->AllocateParserType(pt, "\n", 1);
|
|
break;
|
|
case 'r':
|
|
this->AllocateParserType(pt, "\r", 1);
|
|
break;
|
|
case '0':
|
|
this->AllocateParserType(pt, "\0", 1);
|
|
break;
|
|
default:
|
|
{
|
|
cmOStringStream e;
|
|
e << "Invalid escape sequence \\" << symbol;
|
|
this->SetError(e.str());
|
|
}
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void cmCommandArgument_SetupEscapes(yyscan_t yyscanner, bool noEscapes);
|
|
|
|
int cmCommandArgumentParserHelper::ParseString(const char* str, int verb)
|
|
{
|
|
if ( !str)
|
|
{
|
|
return 0;
|
|
}
|
|
this->Verbose = verb;
|
|
this->InputBuffer = str;
|
|
this->InputBufferPos = 0;
|
|
this->CurrentLine = 0;
|
|
|
|
this->Result = "";
|
|
|
|
yyscan_t yyscanner;
|
|
cmCommandArgument_yylex_init(&yyscanner);
|
|
cmCommandArgument_yyset_extra(this, yyscanner);
|
|
cmCommandArgument_SetupEscapes(yyscanner, this->NoEscapeMode);
|
|
int res = cmCommandArgument_yyparse(yyscanner);
|
|
cmCommandArgument_yylex_destroy(yyscanner);
|
|
if ( res != 0 )
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
this->CleanupParser();
|
|
|
|
if ( Verbose )
|
|
{
|
|
std::cerr << "Expanding [" << str << "] produced: ["
|
|
<< this->Result << "]" << std::endl;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void cmCommandArgumentParserHelper::CleanupParser()
|
|
{
|
|
std::vector<char*>::iterator sit;
|
|
for ( sit = this->Variables.begin();
|
|
sit != this->Variables.end();
|
|
++ sit )
|
|
{
|
|
delete [] *sit;
|
|
}
|
|
this->Variables.erase(this->Variables.begin(), this->Variables.end());
|
|
}
|
|
|
|
int cmCommandArgumentParserHelper::LexInput(char* buf, int maxlen)
|
|
{
|
|
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 cmCommandArgumentParserHelper::Error(const char* str)
|
|
{
|
|
unsigned long pos = static_cast<unsigned long>(this->InputBufferPos);
|
|
cmOStringStream ostr;
|
|
ostr << str << " (" << pos << ")";
|
|
this->SetError(ostr.str());
|
|
}
|
|
|
|
void cmCommandArgumentParserHelper::SetMakefile(const cmMakefile* mf)
|
|
{
|
|
this->Makefile = mf;
|
|
this->WarnUninitialized = mf->GetCMakeInstance()->GetWarnUninitialized();
|
|
this->CheckSystemVars = mf->GetCMakeInstance()->GetCheckSystemVars();
|
|
}
|
|
|
|
void cmCommandArgumentParserHelper::SetResult(const char* value)
|
|
{
|
|
if ( !value )
|
|
{
|
|
this->Result = "";
|
|
return;
|
|
}
|
|
this->Result = value;
|
|
}
|
|
|
|
void cmCommandArgumentParserHelper::SetError(std::string const& msg)
|
|
{
|
|
// Keep only the first error.
|
|
if(this->ErrorString.empty())
|
|
{
|
|
this->ErrorString = msg;
|
|
}
|
|
}
|