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ENH: add an option to configure file command that allows for only expansion of at variables and not dollar variables

This commit is contained in:
Bill Hoffman 2001-10-30 14:05:07 -05:00
parent bc34c428df
commit 091e95f26d
4 changed files with 50 additions and 19 deletions
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9
Source/cmConfigureFileCommand.cxx
View File

@ -53,6 +53,7 @@ bool cmConfigureFileCommand::InitialPass(std::vector<std::string> const& args)
m_CopyOnly = false;
m_EscapeQuotes = false;
m_Immediate = false;
m_AtOnly = false;
for(unsigned int i=2;i < args.size();++i)
{
if(args[i] == "COPYONLY")
@ -63,6 +64,10 @@ bool cmConfigureFileCommand::InitialPass(std::vector<std::string> const& args)
{
m_EscapeQuotes = true;
}
else if(args[i] == "@ONLY")
{
m_AtOnly = true;
}
else if(args[i] == "IMMEDIATE")
{
m_Immediate = true;
@ -136,8 +141,8 @@ void cmConfigureFileCommand::ConfigureFile()
if(fin)
{
inLine = buffer;
m_Makefile->ExpandVariablesInString(inLine, m_EscapeQuotes);
m_Makefile->RemoveVariablesInString(inLine);
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))

7
Source/cmConfigureFileCommand.h
View File

@ -77,7 +77,7 @@ public:
virtual const char* GetFullDocumentation()
{
return
"CONFIGURE_FILE(InputFile OutputFile [COPYONLY] [ESCAPE_QUOTES] [IMMEDIATE])\n"
"CONFIGURE_FILE(InputFile OutputFile [COPYONLY] [ESCAPE_QUOTES] [IMMEDIATE] [@ONLY])\n"
"The Input and Ouput files have to have full paths.\n"
"They can also use variables like CMAKE_BINARY_DIR,CMAKE_SOURCE_DIR. "
"This command replaces any variables in the input file with their "
@ -87,7 +87,9 @@ public:
"passed in then any substitued quotes will be C style escaped. "
"If IMMEDIATE is specified, then the file will be configured with "
"the current values of CMake variables instead of waiting until the "
"end of CMakeLists processing.";
"end of CMakeLists processing. If @ONLY is present, only variables "
"of the form @var@ will be replaces and ${var} will be ignored. "
"This is useful for configuring tcl scripts that use ${var}.";
}
virtual void FinalPass();
@ -99,6 +101,7 @@ private:
bool m_CopyOnly;
bool m_EscapeQuotes;
bool m_Immediate;
bool m_AtOnly;
};

46
Source/cmMakefile.cxx
View File

@ -884,7 +884,8 @@ const char *cmMakefile::ExpandVariablesInString(std::string& source) const
}
const char *cmMakefile::ExpandVariablesInString(std::string& source,
bool escapeQuotes) const
bool escapeQuotes,
bool atOnly) const
{
// This method replaces ${VAR} and @VAR@ where VAR is looked up
// in the m_Definitions map, if not found in the map, nothing is expanded.
@ -892,7 +893,15 @@ const char *cmMakefile::ExpandVariablesInString(std::string& source,
// the current environment variables.
// start by look for $ or @ in the string
std::string::size_type markerPos = source.find_first_of("$@");
std::string::size_type markerPos;
if(atOnly)
{
markerPos = source.find_first_of("@");
}
else
{
markerPos = source.find_first_of("$@");
}
// if not found, or found as the last character, then leave quickly as
// nothing needs to be expanded
if((markerPos == std::string::npos) || (markerPos >= source.size()-1))
@ -910,7 +919,7 @@ const char *cmMakefile::ExpandVariablesInString(std::string& source,
result += source.substr(currentPos, markerPos - currentPos);
char endVariableMarker; // what is the end of the variable @ or }
int markerStartSize = 1; // size of the start marker 1 or 2 or 5
if(source[markerPos] == '$')
if(!atOnly && source[markerPos] == '$')
{
// ${var} case
if(source[markerPos+1] == '{')
@ -1017,27 +1026,40 @@ const char *cmMakefile::ExpandVariablesInString(std::string& source,
currentPos = endVariablePos+1;
}
}
markerPos = source.find_first_of("$@", currentPos);
if(atOnly)
{
markerPos = source.find_first_of("@", currentPos);
}
else
{
markerPos = source.find_first_of("$@", currentPos);
}
}
result += source.substr(currentPos); // pick up the rest of the string
source = result;
return source.c_str();
}
void cmMakefile::RemoveVariablesInString(std::string& source) const
void cmMakefile::RemoveVariablesInString(std::string& source,
bool atOnly) const
{
cmRegularExpression var("(\\${[A-Za-z_0-9]*})");
while (var.find(source))
if(!atOnly)
{
source.erase(var.start(),var.end() - var.start());
cmRegularExpression var("(\\${[A-Za-z_0-9]*})");
while (var.find(source))
{
source.erase(var.start(),var.end() - var.start());
}
}
cmRegularExpression varb("(\\$ENV{[A-Za-z_0-9]*})");
while (varb.find(source))
if(!atOnly)
{
source.erase(varb.start(),varb.end() - varb.start());
cmRegularExpression varb("(\\$ENV{[A-Za-z_0-9]*})");
while (varb.find(source))
{
source.erase(varb.start(),varb.end() - varb.start());
}
}
cmRegularExpression var2("(@[A-Za-z_0-9]*@)");
while (var2.find(source))
{

5
Source/cmMakefile.h
View File

@ -511,13 +511,14 @@ public:
* expanded to match autoconf style expansions.
*/
const char *ExpandVariablesInString(std::string& source) const;
const char *ExpandVariablesInString(std::string& source, bool escapeQuotes) const;
const char *ExpandVariablesInString(std::string& source, bool escapeQuotes,
bool atOnly = false) const;
/**
* Remove any remaining variables in the string. Anything with ${var} or
* @var@ will be removed.
*/
void RemoveVariablesInString(std::string& source) const;
void RemoveVariablesInString(std::string& source, bool atOnly = false) const;
/**
* Expand variables in the makefiles ivars such as link directories etc