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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmParseArgumentsCommand.h"
#include "cmAlgorithms.h"
#include "cmSystemTools.h"
static std::string escape_arg(const std::string& arg)
{
// replace ";" with "\;" so output argument lists will split correctly
std::string escapedArg;
for (size_t i = 0; i < arg.size(); ++i) {
if (arg[i] == ';') {
escapedArg += '\\';
}
escapedArg += arg[i];
}
return escapedArg;
}
bool cmParseArgumentsCommand::InitialPass(std::vector<std::string> const& args,
cmExecutionStatus&)
{
// cmake_parse_arguments(prefix options single multi <ARGN>)
// 1 2 3 4
// or
// cmake_parse_arguments(PARSE_ARGV N prefix options single multi)
if (args.size() < 4) {
this->SetError("must be called with at least 4 arguments.");
return false;
}
std::vector<std::string>::const_iterator argIter = args.begin(),
argEnd = args.end();
bool parseFromArgV = false;
unsigned long argvStart = 0;
if (*argIter == "PARSE_ARGV") {
if (args.size() != 6) {
this->Makefile->IssueMessage(
cmake::FATAL_ERROR,
"PARSE_ARGV must be called with exactly 6 arguments.");
cmSystemTools::SetFatalErrorOccured();
return true;
}
parseFromArgV = true;
argIter++; // move past PARSE_ARGV
if (!cmSystemTools::StringToULong(argIter->c_str(), &argvStart)) {
this->Makefile->IssueMessage(cmake::FATAL_ERROR, "PARSE_ARGV index '" +
*argIter +
"' is not an unsigned integer");
cmSystemTools::SetFatalErrorOccured();
return true;
}
argIter++; // move past N
}
// the first argument is the prefix
const std::string prefix = (*argIter++) + "_";
// define the result maps holding key/value pairs for
// options, single values and multi values
typedef std::map<std::string, bool> options_map;
typedef std::map<std::string, std::string> single_map;
typedef std::map<std::string, std::vector<std::string> > multi_map;
options_map options;
single_map single;
multi_map multi;
// anything else is put into a vector of unparsed strings
std::vector<std::string> unparsed;
// remember already defined keywords
std::set<std::string> used_keywords;
const std::string dup_warning = "keyword defined more than once: ";
// the second argument is a (cmake) list of options without argument
std::vector<std::string> list;
cmSystemTools::ExpandListArgument(*argIter++, list);
for (std::vector<std::string>::const_iterator iter = list.begin(),
end = list.end();
iter != end; ++iter) {
if (!used_keywords.insert(*iter).second) {
this->GetMakefile()->IssueMessage(cmake::WARNING, dup_warning + *iter);
}
options[*iter]; // default initialize
}
// the third argument is a (cmake) list of single argument options
list.clear();
cmSystemTools::ExpandListArgument(*argIter++, list);
for (std::vector<std::string>::const_iterator iter = list.begin(),
end = list.end();
iter != end; ++iter) {
if (!used_keywords.insert(*iter).second) {
this->GetMakefile()->IssueMessage(cmake::WARNING, dup_warning + *iter);
}
single[*iter]; // default initialize
}
// the fourth argument is a (cmake) list of multi argument options
list.clear();
cmSystemTools::ExpandListArgument(*argIter++, list);
for (std::vector<std::string>::const_iterator iter = list.begin(),
end = list.end();
iter != end; ++iter) {
if (!used_keywords.insert(*iter).second) {
this->GetMakefile()->IssueMessage(cmake::WARNING, dup_warning + *iter);
}
multi[*iter]; // default initialize
}
enum insideValues
{
NONE,
SINGLE,
MULTI
} insideValues = NONE;
std::string currentArgName;
list.clear();
if (!parseFromArgV) {
// Flatten ;-lists in the arguments into a single list as was done
// by the original function(CMAKE_PARSE_ARGUMENTS).
for (; argIter != argEnd; ++argIter) {
cmSystemTools::ExpandListArgument(*argIter, list);
}
} else {
// in the PARSE_ARGV move read the arguments from ARGC and ARGV#
std::string argc = this->Makefile->GetSafeDefinition("ARGC");
unsigned long count;
if (!cmSystemTools::StringToULong(argc.c_str(), &count)) {
this->Makefile->IssueMessage(cmake::FATAL_ERROR,
"PARSE_ARGV called with ARGC='" + argc +
"' that is not an unsigned integer");
cmSystemTools::SetFatalErrorOccured();
return true;
}
for (unsigned long i = argvStart; i < count; ++i) {
std::ostringstream argName;
argName << "ARGV" << i;
const char* arg = this->Makefile->GetDefinition(argName.str());
if (!arg) {
this->Makefile->IssueMessage(cmake::FATAL_ERROR,
"PARSE_ARGV called with " +
argName.str() + " not set");
cmSystemTools::SetFatalErrorOccured();
return true;
}
list.push_back(arg);
}
}
// iterate over the arguments list and fill in the values where applicable
for (argIter = list.begin(), argEnd = list.end(); argIter != argEnd;
++argIter) {
const options_map::iterator optIter = options.find(*argIter);
if (optIter != options.end()) {
insideValues = NONE;
optIter->second = true;
continue;
}
const single_map::iterator singleIter = single.find(*argIter);
if (singleIter != single.end()) {
insideValues = SINGLE;
currentArgName = *argIter;
continue;
}
const multi_map::iterator multiIter = multi.find(*argIter);
if (multiIter != multi.end()) {
insideValues = MULTI;
currentArgName = *argIter;
continue;
}
switch (insideValues) {
case SINGLE:
single[currentArgName] = *argIter;
insideValues = NONE;
break;
case MULTI:
if (parseFromArgV) {
multi[currentArgName].push_back(escape_arg(*argIter));
} else {
multi[currentArgName].push_back(*argIter);
}
break;
default:
if (parseFromArgV) {
unparsed.push_back(escape_arg(*argIter));
} else {
unparsed.push_back(*argIter);
}
break;
}
}
// now iterate over the collected values and update their definition
// within the current scope. undefine if necessary.
for (options_map::const_iterator iter = options.begin(), end = options.end();
iter != end; ++iter) {
this->Makefile->AddDefinition(prefix + iter->first,
iter->second ? "TRUE" : "FALSE");
}
for (single_map::const_iterator iter = single.begin(), end = single.end();
iter != end; ++iter) {
if (!iter->second.empty()) {
this->Makefile->AddDefinition(prefix + iter->first,
iter->second.c_str());
} else {
this->Makefile->RemoveDefinition(prefix + iter->first);
}
}
for (multi_map::const_iterator iter = multi.begin(), end = multi.end();
iter != end; ++iter) {
if (!iter->second.empty()) {
this->Makefile->AddDefinition(
prefix + iter->first, cmJoin(cmMakeRange(iter->second), ";").c_str());
} else {
this->Makefile->RemoveDefinition(prefix + iter->first);
}
}
if (!unparsed.empty()) {
this->Makefile->AddDefinition(prefix + "UNPARSED_ARGUMENTS",
cmJoin(cmMakeRange(unparsed), ";").c_str());
} else {
this->Makefile->RemoveDefinition(prefix + "UNPARSED_ARGUMENTS");
}
return true;
}
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