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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 "cmCommandArgumentsHelper.h"
cmCommandArgument::cmCommandArgument(cmCommandArgumentsHelper* args,
const char* key,
cmCommandArgumentGroup* group)
: Key(key)
, Group(group)
, WasActive(false)
, ArgumentsBeforeEmpty(true)
, CurrentIndex(0)
{
if (args != nullptr) {
args->AddArgument(this);
}
if (this->Group != nullptr) {
this->Group->ContainedArguments.push_back(this);
}
}
void cmCommandArgument::Reset()
{
this->WasActive = false;
this->CurrentIndex = 0;
this->DoReset();
}
void cmCommandArgument::Follows(const cmCommandArgument* arg)
{
this->ArgumentsBeforeEmpty = false;
this->ArgumentsBefore.insert(arg);
}
void cmCommandArgument::FollowsGroup(const cmCommandArgumentGroup* group)
{
if (group != nullptr) {
this->ArgumentsBeforeEmpty = false;
this->ArgumentsBefore.insert(group->ContainedArguments.begin(),
group->ContainedArguments.end());
}
}
bool cmCommandArgument::MayFollow(const cmCommandArgument* current) const
{
if (this->ArgumentsBeforeEmpty) {
return true;
}
return this->ArgumentsBefore.find(current) != this->ArgumentsBefore.end();
}
bool cmCommandArgument::KeyMatches(const std::string& key) const
{
if ((this->Key == nullptr) || (this->Key[0] == '\0')) {
return true;
}
return (key == this->Key);
}
void cmCommandArgument::ApplyOwnGroup()
{
if (this->Group != nullptr) {
for (cmCommandArgument* cargs : this->Group->ContainedArguments) {
if (cargs != this) {
this->ArgumentsBefore.insert(cargs);
}
}
}
}
void cmCommandArgument::Activate()
{
this->WasActive = true;
this->CurrentIndex = 0;
}
bool cmCommandArgument::Consume(const std::string& arg)
{
bool res = this->DoConsume(arg, this->CurrentIndex);
this->CurrentIndex++;
return res;
}
cmCAStringVector::cmCAStringVector(cmCommandArgumentsHelper* args,
const char* key,
cmCommandArgumentGroup* group)
: cmCommandArgument(args, key, group)
, Ignore(nullptr)
{
if ((key == nullptr) || (*key == 0)) {
this->DataStart = 0;
} else {
this->DataStart = 1;
}
}
bool cmCAStringVector::DoConsume(const std::string& arg, unsigned int index)
{
if (index >= this->DataStart) {
if ((this->Ignore == nullptr) || (arg != this->Ignore)) {
this->Vector.push_back(arg);
}
}
return false;
}
void cmCAStringVector::DoReset()
{
this->Vector.clear();
}
cmCAString::cmCAString(cmCommandArgumentsHelper* args, const char* key,
cmCommandArgumentGroup* group)
: cmCommandArgument(args, key, group)
{
if ((key == nullptr) || (*key == 0)) {
this->DataStart = 0;
} else {
this->DataStart = 1;
}
}
bool cmCAString::DoConsume(const std::string& arg, unsigned int index)
{
if (index == this->DataStart) {
this->String = arg;
}
return index >= this->DataStart;
}
void cmCAString::DoReset()
{
this->String.clear();
}
cmCAEnabler::cmCAEnabler(cmCommandArgumentsHelper* args, const char* key,
cmCommandArgumentGroup* group)
: cmCommandArgument(args, key, group)
, Enabled(false)
{
}
bool cmCAEnabler::DoConsume(const std::string&, unsigned int index)
{
if (index == 0) {
this->Enabled = true;
}
return true;
}
void cmCAEnabler::DoReset()
{
this->Enabled = false;
}
cmCADisabler::cmCADisabler(cmCommandArgumentsHelper* args, const char* key,
cmCommandArgumentGroup* group)
: cmCommandArgument(args, key, group)
, Enabled(true)
{
}
bool cmCADisabler::DoConsume(const std::string&, unsigned int index)
{
if (index == 0) {
this->Enabled = false;
}
return true;
}
void cmCADisabler::DoReset()
{
this->Enabled = true;
}
void cmCommandArgumentGroup::Follows(const cmCommandArgument* arg)
{
for (cmCommandArgument* ca : this->ContainedArguments) {
ca->Follows(arg);
}
}
void cmCommandArgumentGroup::FollowsGroup(const cmCommandArgumentGroup* group)
{
for (cmCommandArgument* ca : this->ContainedArguments) {
ca->FollowsGroup(group);
}
}
void cmCommandArgumentsHelper::Parse(const std::vector<std::string>* args,
std::vector<std::string>* unconsumedArgs)
{
if (args == nullptr) {
return;
}
for (cmCommandArgument* ca : this->Arguments) {
ca->ApplyOwnGroup();
ca->Reset();
}
cmCommandArgument* activeArgument = nullptr;
const cmCommandArgument* previousArgument = nullptr;
for (std::string const& it : *args) {
for (cmCommandArgument* ca : this->Arguments) {
if (ca->KeyMatches(it) && (ca->MayFollow(previousArgument))) {
activeArgument = ca;
activeArgument->Activate();
break;
}
}
if (activeArgument) {
bool argDone = activeArgument->Consume(it);
previousArgument = activeArgument;
if (argDone) {
activeArgument = nullptr;
}
} else {
if (unconsumedArgs != nullptr) {
unconsumedArgs->push_back(it);
}
}
}
}
void cmCommandArgumentsHelper::AddArgument(cmCommandArgument* arg)
{
this->Arguments.push_back(arg);
}
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