Use custom parser values instead of simple parser values for parsing Zone definitions

This commit is contained in:
Jan 2021-03-20 14:07:48 +01:00
parent ef36d6cdc5
commit 5e08469635
27 changed files with 431 additions and 174 deletions

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@ -1,6 +1,5 @@
#include "SimpleMatcherFactory.h"
#include "SimpleMatcherAnyCharacterBesides.h"
#include "SimpleMatcherCharacter.h"
#include "SimpleMatcherKeyword.h"

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@ -1,61 +0,0 @@
#include "ZoneDefinitionCommonMatchers.h"
#include <sstream>
#include "Parsing/Simple/Matcher/SimpleMatcherFactory.h"
std::unique_ptr<ZoneDefinitionCommonMatchers::matcher_t> ZoneDefinitionCommonMatchers::AssetName(const supplier_t* labelSupplier)
{
const SimpleMatcherFactory create(labelSupplier);
return create.And({
create.Loop(create.Or({
create.Identifier(),
create.AnyCharBesides({',', '<', '>', '"', '\\', '*', '?', '|', ':'})
})),
create.Or({
create.Type(SimpleParserValueType::NEW_LINE),
create.Type(SimpleParserValueType::END_OF_FILE)
}).NoConsume()
}).Transform([](SimpleMatcherFactory::token_list_t& tokens)
{
std::ostringstream str;
auto previousType = SimpleParserValueType::INVALID;
auto previousCharacterWasSlash = false;
for (const auto& token : tokens)
{
switch (token.get().m_type)
{
case SimpleParserValueType::IDENTIFIER:
if (previousType == SimpleParserValueType::IDENTIFIER)
str << " ";
str << token.get().IdentifierValue();
break;
case SimpleParserValueType::CHARACTER:
if (token.get().CharacterValue() == '/')
{
if (previousType != SimpleParserValueType::CHARACTER || !previousCharacterWasSlash)
{
str << "/";
previousCharacterWasSlash = true;
}
}
else
{
str << token.get().CharacterValue();
previousCharacterWasSlash = false;
}
break;
default:
break;
}
previousType = token.get().m_type;
}
return SimpleParserValue::Identifier(tokens.front().get().GetPos(), new std::string(str.str()));
});
}

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@ -1,19 +0,0 @@
#pragma once
#include <limits>
#include <memory>
#include "Parsing/Simple/SimpleParserValue.h"
#include "Parsing/Matcher/AbstractMatcher.h"
#include "Parsing/Matcher/MatcherLabel.h"
class ZoneDefinitionCommonMatchers
{
public:
typedef AbstractMatcher<SimpleParserValue> matcher_t;
typedef IMatcherForLabelSupplier<SimpleParserValue> supplier_t;
static constexpr int LABEL_ASSET_NAME = std::numeric_limits<int>::max() - 1;
static std::unique_ptr<matcher_t> AssetName(const supplier_t* labelSupplier);
};

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@ -0,0 +1,14 @@
#include "ZoneDefinitionMatcherCharacter.h"
ZoneDefinitionMatcherCharacter::ZoneDefinitionMatcherCharacter(const char c)
: m_char(c)
{
}
MatcherResult<ZoneDefinitionParserValue> ZoneDefinitionMatcherCharacter::CanMatch(ILexer<ZoneDefinitionParserValue>* lexer, const unsigned tokenOffset)
{
const auto& token = lexer->GetToken(tokenOffset);
return token.m_type == ZoneDefinitionParserValueType::CHARACTER && token.CharacterValue() == m_char
? MatcherResult<ZoneDefinitionParserValue>::Match(1)
: MatcherResult<ZoneDefinitionParserValue>::NoMatch();
}

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@ -0,0 +1,15 @@
#pragma once
#include "Parsing/Matcher/AbstractMatcher.h"
#include "Parsing/ZoneDefinition/ZoneDefinitionParserValue.h"
class ZoneDefinitionMatcherCharacter final : public AbstractMatcher<ZoneDefinitionParserValue>
{
char m_char;
protected:
MatcherResult<ZoneDefinitionParserValue> CanMatch(ILexer<ZoneDefinitionParserValue>* lexer, unsigned tokenOffset) override;
public:
explicit ZoneDefinitionMatcherCharacter(char c);
};

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@ -0,0 +1,35 @@
#include "ZoneDefinitionMatcherFactory.h"
#include "ZoneDefinitionMatcherCharacter.h"
#include "ZoneDefinitionMatcherKeyword.h"
#include "ZoneDefinitionMatcherValueType.h"
ZoneDefinitionMatcherFactory::ZoneDefinitionMatcherFactory(const IMatcherForLabelSupplier<ZoneDefinitionParserValue>* labelSupplier)
: AbstractMatcherFactory(labelSupplier)
{
}
MatcherFactoryWrapper<ZoneDefinitionParserValue> ZoneDefinitionMatcherFactory::Type(ZoneDefinitionParserValueType type) const
{
return MatcherFactoryWrapper<ZoneDefinitionParserValue>(std::make_unique<ZoneDefinitionMatcherValueType>(type));
}
MatcherFactoryWrapper<ZoneDefinitionParserValue> ZoneDefinitionMatcherFactory::Keyword(std::string keyword) const
{
return MatcherFactoryWrapper<ZoneDefinitionParserValue>(std::make_unique<ZoneDefinitionMatcherKeyword>(std::move(keyword)));
}
MatcherFactoryWrapper<ZoneDefinitionParserValue> ZoneDefinitionMatcherFactory::Field() const
{
return MatcherFactoryWrapper<ZoneDefinitionParserValue>(std::make_unique<ZoneDefinitionMatcherValueType>(ZoneDefinitionParserValueType::FIELD));
}
MatcherFactoryWrapper<ZoneDefinitionParserValue> ZoneDefinitionMatcherFactory::String() const
{
return MatcherFactoryWrapper<ZoneDefinitionParserValue>(std::make_unique<ZoneDefinitionMatcherValueType>(ZoneDefinitionParserValueType::STRING));
}
MatcherFactoryWrapper<ZoneDefinitionParserValue> ZoneDefinitionMatcherFactory::Char(char c) const
{
return MatcherFactoryWrapper<ZoneDefinitionParserValue>(std::make_unique<ZoneDefinitionMatcherCharacter>(c));
}

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@ -0,0 +1,18 @@
#pragma once
#include <string>
#include "Parsing/ZoneDefinition/ZoneDefinitionParserValue.h"
#include "Parsing/Matcher/AbstractMatcherFactory.h"
class ZoneDefinitionMatcherFactory final : public AbstractMatcherFactory<ZoneDefinitionParserValue>
{
public:
explicit ZoneDefinitionMatcherFactory(const IMatcherForLabelSupplier<ZoneDefinitionParserValue>* labelSupplier);
_NODISCARD MatcherFactoryWrapper<ZoneDefinitionParserValue> Type(ZoneDefinitionParserValueType type) const;
_NODISCARD MatcherFactoryWrapper<ZoneDefinitionParserValue> Keyword(std::string keyword) const;
_NODISCARD MatcherFactoryWrapper<ZoneDefinitionParserValue> Field() const;
_NODISCARD MatcherFactoryWrapper<ZoneDefinitionParserValue> String() const;
_NODISCARD MatcherFactoryWrapper<ZoneDefinitionParserValue> Char(char c) const;
};

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@ -0,0 +1,16 @@
#include "ZoneDefinitionMatcherKeyword.h"
ZoneDefinitionMatcherKeyword::ZoneDefinitionMatcherKeyword(std::string value)
: m_value(std::move(value))
{
const std::hash<std::string> hash;
m_hash = hash(m_value);
}
MatcherResult<ZoneDefinitionParserValue> ZoneDefinitionMatcherKeyword::CanMatch(ILexer<ZoneDefinitionParserValue>* lexer, const unsigned tokenOffset)
{
const auto& token = lexer->GetToken(tokenOffset);
return token.m_type == ZoneDefinitionParserValueType::FIELD && token.FieldHash() == m_hash && token.FieldValue() == m_value
? MatcherResult<ZoneDefinitionParserValue>::Match(1)
: MatcherResult<ZoneDefinitionParserValue>::NoMatch();
}

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@ -0,0 +1,18 @@
#pragma once
#include <string>
#include "Parsing/ZoneDefinition/ZoneDefinitionParserValue.h"
#include "Parsing/Matcher/AbstractMatcher.h"
class ZoneDefinitionMatcherKeyword final : public AbstractMatcher<ZoneDefinitionParserValue>
{
size_t m_hash;
std::string m_value;
protected:
MatcherResult<ZoneDefinitionParserValue> CanMatch(ILexer<ZoneDefinitionParserValue>* lexer, unsigned tokenOffset) override;
public:
explicit ZoneDefinitionMatcherKeyword(std::string value);
};

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@ -0,0 +1,13 @@
#include "ZoneDefinitionMatcherValueType.h"
ZoneDefinitionMatcherValueType::ZoneDefinitionMatcherValueType(const ZoneDefinitionParserValueType type)
: m_type(type)
{
}
MatcherResult<ZoneDefinitionParserValue> ZoneDefinitionMatcherValueType::CanMatch(ILexer<ZoneDefinitionParserValue>* lexer, const unsigned tokenOffset)
{
return lexer->GetToken(tokenOffset).m_type == m_type
? MatcherResult<ZoneDefinitionParserValue>::Match(1)
: MatcherResult<ZoneDefinitionParserValue>::NoMatch();
}

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@ -0,0 +1,15 @@
#pragma once
#include "Parsing/ZoneDefinition/ZoneDefinitionParserValue.h"
#include "Parsing/Matcher/AbstractMatcher.h"
class ZoneDefinitionMatcherValueType final : public AbstractMatcher<ZoneDefinitionParserValue>
{
ZoneDefinitionParserValueType m_type;
protected:
MatcherResult<ZoneDefinitionParserValue> CanMatch(ILexer<ZoneDefinitionParserValue>* lexer, unsigned tokenOffset) override;
public:
explicit ZoneDefinitionMatcherValueType(ZoneDefinitionParserValueType type);
};

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@ -1,14 +0,0 @@
#include "SequenceZoneDefinitionConsumeEmptyLines.h"
#include "Parsing/Simple/Matcher/SimpleMatcherFactory.h"
SequenceZoneDefinitionConsumeEmptyLines::SequenceZoneDefinitionConsumeEmptyLines()
{
const SimpleMatcherFactory create(this);
AddMatchers(create.Loop(create.Type(SimpleParserValueType::NEW_LINE)));
}
void SequenceZoneDefinitionConsumeEmptyLines::ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const
{
}

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@ -1,12 +0,0 @@
#pragma once
#include "Parsing/ZoneDefinition/ZoneDefinitionParser.h"
class SequenceZoneDefinitionConsumeEmptyLines final : public ZoneDefinitionParser::sequence_t
{
protected:
void ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const override;
public:
SequenceZoneDefinitionConsumeEmptyLines();
};

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@ -1,44 +1,38 @@
#include "SequenceZoneDefinitionEntry.h"
#include "Parsing/ZoneDefinition/Matcher/ZoneDefinitionCommonMatchers.h"
#include "Parsing/Simple/Matcher/SimpleMatcherFactory.h"
#include "Parsing/ZoneDefinition/Matcher/ZoneDefinitionMatcherFactory.h"
SequenceZoneDefinitionEntry::SequenceZoneDefinitionEntry()
{
const SimpleMatcherFactory create(this);
AddLabeledMatchers(ZoneDefinitionCommonMatchers::AssetName(this), ZoneDefinitionCommonMatchers::LABEL_ASSET_NAME);
const ZoneDefinitionMatcherFactory create(this);
AddMatchers({
create.Identifier().Capture(CAPTURE_TYPE_NAME),
create.Field().Capture(CAPTURE_TYPE_NAME),
create.Char(','),
create.Optional(create.Char(',').Tag(TAG_REFERENCE)),
create.Or({
create.Type(SimpleParserValueType::STRING),
create.Label(ZoneDefinitionCommonMatchers::LABEL_ASSET_NAME)
}).Capture(CAPTURE_ASSET_NAME),
create.Or({
create.Type(SimpleParserValueType::NEW_LINE),
create.Type(SimpleParserValueType::END_OF_FILE)
})
create.String(),
create.Field()
}).Capture(CAPTURE_ASSET_NAME)
});
}
void SequenceZoneDefinitionEntry::ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const
void SequenceZoneDefinitionEntry::ProcessMatch(ZoneDefinition* state, SequenceResult<ZoneDefinitionParserValue>& result) const
{
const auto& assetNameCapture = result.NextCapture(CAPTURE_ASSET_NAME);
std::string assetName;
if (assetNameCapture.m_type == SimpleParserValueType::STRING)
if (assetNameCapture.m_type == ZoneDefinitionParserValueType::STRING)
{
assetName = assetNameCapture.StringValue();
}
else
{
assetName = assetNameCapture.IdentifierValue();
assetName = assetNameCapture.FieldValue();
}
state->m_assets.emplace_back(
result.NextCapture(CAPTURE_TYPE_NAME).IdentifierValue(),
result.NextCapture(CAPTURE_TYPE_NAME).FieldValue(),
assetName,
result.NextTag() == TAG_REFERENCE);
}

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@ -10,7 +10,7 @@ class SequenceZoneDefinitionEntry final : public ZoneDefinitionParser::sequence_
static constexpr auto CAPTURE_ASSET_NAME = 2;
protected:
void ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const override;
void ProcessMatch(ZoneDefinition* state, SequenceResult<ZoneDefinitionParserValue>& result) const override;
public:
SequenceZoneDefinitionEntry();

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@ -1,23 +1,19 @@
#include "SequenceZoneDefinitionIgnore.h"
#include "Parsing/Simple/Matcher/SimpleMatcherFactory.h"
#include "Parsing/ZoneDefinition/Matcher/ZoneDefinitionMatcherFactory.h"
SequenceZoneDefinitionIgnore::SequenceZoneDefinitionIgnore()
{
const SimpleMatcherFactory create(this);
const ZoneDefinitionMatcherFactory create(this);
AddMatchers({
create.Keyword("ignore"),
create.Char(','),
create.Identifier().Capture(CAPTURE_IGNORE_NAME),
create.Or({
create.Type(SimpleParserValueType::NEW_LINE),
create.Type(SimpleParserValueType::END_OF_FILE)
})
create.Field().Capture(CAPTURE_IGNORE_NAME)
});
}
void SequenceZoneDefinitionIgnore::ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const
void SequenceZoneDefinitionIgnore::ProcessMatch(ZoneDefinition* state, SequenceResult<ZoneDefinitionParserValue>& result) const
{
state->m_ignores.emplace_back(result.NextCapture(CAPTURE_IGNORE_NAME).IdentifierValue());
state->m_ignores.emplace_back(result.NextCapture(CAPTURE_IGNORE_NAME).FieldValue());
}

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@ -7,7 +7,7 @@ class SequenceZoneDefinitionIgnore final : public ZoneDefinitionParser::sequence
static constexpr auto CAPTURE_IGNORE_NAME = 1;
protected:
void ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const override;
void ProcessMatch(ZoneDefinition* state, SequenceResult<ZoneDefinitionParserValue>& result) const override;
public:
SequenceZoneDefinitionIgnore();

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@ -1,23 +1,19 @@
#include "SequenceZoneDefinitionInclude.h"
#include "Parsing/Simple/Matcher/SimpleMatcherFactory.h"
#include "Parsing/ZoneDefinition/Matcher/ZoneDefinitionMatcherFactory.h"
SequenceZoneDefinitionInclude::SequenceZoneDefinitionInclude()
{
const SimpleMatcherFactory create(this);
const ZoneDefinitionMatcherFactory create(this);
AddMatchers({
create.Keyword("include"),
create.Char(','),
create.Identifier().Capture(CAPTURE_INCLUDE_NAME),
create.Or({
create.Type(SimpleParserValueType::NEW_LINE),
create.Type(SimpleParserValueType::END_OF_FILE)
})
create.Field().Capture(CAPTURE_INCLUDE_NAME)
});
}
void SequenceZoneDefinitionInclude::ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const
void SequenceZoneDefinitionInclude::ProcessMatch(ZoneDefinition* state, SequenceResult<ZoneDefinitionParserValue>& result) const
{
state->m_includes.emplace_back(result.NextCapture(CAPTURE_INCLUDE_NAME).IdentifierValue());
state->m_includes.emplace_back(result.NextCapture(CAPTURE_INCLUDE_NAME).FieldValue());
}

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@ -7,7 +7,7 @@ class SequenceZoneDefinitionInclude final : public ZoneDefinitionParser::sequenc
static constexpr auto CAPTURE_INCLUDE_NAME = 1;
protected:
void ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const override;
void ProcessMatch(ZoneDefinition* state, SequenceResult<ZoneDefinitionParserValue>& result) const override;
public:
SequenceZoneDefinitionInclude();

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@ -1,24 +1,20 @@
#include "SequenceZoneDefinitionMetaData.h"
#include "Parsing/Simple/Matcher/SimpleMatcherFactory.h"
#include "Parsing/ZoneDefinition/Matcher/ZoneDefinitionMatcherFactory.h"
SequenceZoneDefinitionMetaData::SequenceZoneDefinitionMetaData()
{
const SimpleMatcherFactory create(this);
const ZoneDefinitionMatcherFactory create(this);
AddMatchers({
create.Char('>'),
create.Identifier().Capture(CAPTURE_KEY),
create.Field().Capture(CAPTURE_KEY),
create.Char(','),
create.Identifier().Capture(CAPTURE_VALUE),
create.Or({
create.Type(SimpleParserValueType::NEW_LINE),
create.Type(SimpleParserValueType::END_OF_FILE)
})
create.Field().Capture(CAPTURE_VALUE)
});
}
void SequenceZoneDefinitionMetaData::ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const
void SequenceZoneDefinitionMetaData::ProcessMatch(ZoneDefinition* state, SequenceResult<ZoneDefinitionParserValue>& result) const
{
state->m_metadata.insert(std::make_pair(result.NextCapture(CAPTURE_KEY).IdentifierValue(), result.NextCapture(CAPTURE_VALUE).IdentifierValue()));
state->m_metadata.insert(std::make_pair(result.NextCapture(CAPTURE_KEY).FieldValue(), result.NextCapture(CAPTURE_VALUE).FieldValue()));
}

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@ -8,7 +8,7 @@ class SequenceZoneDefinitionMetaData final : public ZoneDefinitionParser::sequen
static constexpr auto CAPTURE_VALUE = 2;
protected:
void ProcessMatch(ZoneDefinition* state, SequenceResult<SimpleParserValue>& result) const override;
void ProcessMatch(ZoneDefinition* state, SequenceResult<ZoneDefinitionParserValue>& result) const override;
public:
SequenceZoneDefinitionMetaData();

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@ -1,9 +1,71 @@
#include "ZoneDefinitionLexer.h"
#include <sstream>
ZoneDefinitionLexer::ZoneDefinitionLexer(IParserLineStream* stream)
: SimpleLexer(stream)
: AbstractLexer(stream)
{
SetShouldEmitNewLineTokens(true);
SetShouldReadStrings(true);
SetShouldReadNumbers(false);
}
}
std::string ZoneDefinitionLexer::ReadField()
{
const auto& currentLine = CurrentLine();
assert(m_current_line_offset >= 1);
const auto startPos = m_current_line_offset - 1;
const auto lineSize = currentLine.m_line.size();
while (m_current_line_offset < lineSize)
{
const auto c = currentLine.m_line[m_current_line_offset];
bool isNonFieldCharacter;
switch (c)
{
case '\"':
case '>':
case '<':
case ',':
isNonFieldCharacter = true;
break;
default:
isNonFieldCharacter = false;
break;
}
if (isNonFieldCharacter)
break;
m_current_line_offset++;
}
return std::string(currentLine.m_line, startPos, m_current_line_offset - startPos);
}
ZoneDefinitionParserValue ZoneDefinitionLexer::GetNextToken()
{
auto c = NextChar();
while (c != EOF)
{
switch (c)
{
case '\"':
return ZoneDefinitionParserValue::String(GetPreviousCharacterPos(), new std::string(ReadString()));
case '>':
case '<':
case ',':
return ZoneDefinitionParserValue::Character(GetPreviousCharacterPos(), static_cast<char>(c));
default:
if (isspace(c))
break;
return ZoneDefinitionParserValue::Field(GetPreviousCharacterPos(), new std::string(ReadField()));
}
c = NextChar();
}
return ZoneDefinitionParserValue::EndOfFile(TokenPos());
}

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@ -1,9 +1,15 @@
#pragma once
#include "Parsing/Simple/SimpleLexer.h"
#include "ZoneDefinitionParserValue.h"
#include "Parsing/Impl/AbstractLexer.h"
class ZoneDefinitionLexer final : public SimpleLexer
class ZoneDefinitionLexer final : public AbstractLexer<ZoneDefinitionParserValue>
{
std::string ReadField();
protected:
ZoneDefinitionParserValue GetNextToken() override;
public:
explicit ZoneDefinitionLexer(IParserLineStream* stream);
};
};

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@ -1,25 +1,22 @@
#include "ZoneDefinitionParser.h"
#include "Sequence/SequenceZoneDefinitionConsumeEmptyLines.h"
#include "Sequence/SequenceZoneDefinitionEntry.h"
#include "Sequence/SequenceZoneDefinitionIgnore.h"
#include "Sequence/SequenceZoneDefinitionInclude.h"
#include "Sequence/SequenceZoneDefinitionMetaData.h"
ZoneDefinitionParser::ZoneDefinitionParser(SimpleLexer* lexer)
ZoneDefinitionParser::ZoneDefinitionParser(ZoneDefinitionLexer* lexer)
: AbstractParser(lexer, std::make_unique<ZoneDefinition>())
{
}
const std::vector<AbstractParser<SimpleParserValue, ZoneDefinition>::sequence_t*>& ZoneDefinitionParser::GetTestsForState()
const std::vector<AbstractParser<ZoneDefinitionParserValue, ZoneDefinition>::sequence_t*>& ZoneDefinitionParser::GetTestsForState()
{
static std::vector<sequence_t*> tests({
new SequenceZoneDefinitionMetaData(),
new SequenceZoneDefinitionInclude(),
new SequenceZoneDefinitionIgnore(),
new SequenceZoneDefinitionEntry(),
new SequenceZoneDefinitionConsumeEmptyLines()
new SequenceZoneDefinitionEntry()
});
return tests;

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@ -1,16 +1,16 @@
#pragma once
#include "Parsing/Simple/SimpleLexer.h"
#include "Parsing/Simple/SimpleParserValue.h"
#include "ZoneDefinitionLexer.h"
#include "ZoneDefinitionParserValue.h"
#include "Parsing/Impl/AbstractParser.h"
#include "Zone/Definition/ZoneDefinition.h"
class ZoneDefinitionParser final : public AbstractParser<SimpleParserValue, ZoneDefinition>
class ZoneDefinitionParser final : public AbstractParser<ZoneDefinitionParserValue, ZoneDefinition>
{
protected:
const std::vector<sequence_t*>& GetTestsForState() override;
public:
explicit ZoneDefinitionParser(SimpleLexer* lexer);
explicit ZoneDefinitionParser(ZoneDefinitionLexer* lexer);
std::unique_ptr<ZoneDefinition> GetParsedValue();
};

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@ -0,0 +1,115 @@
#include "ZoneDefinitionParserValue.h"
#include <cassert>
ZoneDefinitionParserValue ZoneDefinitionParserValue::Invalid(const TokenPos pos)
{
ZoneDefinitionParserValue pv(pos, ZoneDefinitionParserValueType::INVALID);
return pv;
}
ZoneDefinitionParserValue ZoneDefinitionParserValue::EndOfFile(const TokenPos pos)
{
ZoneDefinitionParserValue pv(pos, ZoneDefinitionParserValueType::END_OF_FILE);
return pv;
}
ZoneDefinitionParserValue ZoneDefinitionParserValue::Character(const TokenPos pos, const char c)
{
ZoneDefinitionParserValue pv(pos, ZoneDefinitionParserValueType::CHARACTER);
pv.m_value.char_value = c;
return pv;
}
ZoneDefinitionParserValue ZoneDefinitionParserValue::String(const TokenPos pos, std::string* str)
{
ZoneDefinitionParserValue pv(pos, ZoneDefinitionParserValueType::STRING);
pv.m_value.string_value = str;
return pv;
}
ZoneDefinitionParserValue ZoneDefinitionParserValue::Field(const TokenPos pos, std::string* field)
{
ZoneDefinitionParserValue pv(pos, ZoneDefinitionParserValueType::FIELD);
pv.m_value.string_value = field;
pv.m_hash = std::hash<std::string>()(*field);
return pv;
}
ZoneDefinitionParserValue::ZoneDefinitionParserValue(const TokenPos pos, const ZoneDefinitionParserValueType type)
: m_pos(pos),
m_type(type),
m_hash(0),
m_value{}
{
}
ZoneDefinitionParserValue::~ZoneDefinitionParserValue()
{
switch (m_type)
{
case ZoneDefinitionParserValueType::STRING:
case ZoneDefinitionParserValueType::FIELD:
delete m_value.string_value;
break;
default:
break;
}
m_value = ValueType();
}
ZoneDefinitionParserValue::ZoneDefinitionParserValue(ZoneDefinitionParserValue&& other) noexcept
: m_pos(other.m_pos),
m_type(other.m_type),
m_hash(other.m_hash),
m_value(other.m_value)
{
other.m_value = ValueType();
}
ZoneDefinitionParserValue& ZoneDefinitionParserValue::operator=(ZoneDefinitionParserValue&& other) noexcept
{
m_pos = other.m_pos;
m_type = other.m_type;
m_value = other.m_value;
m_hash = other.m_hash;
other.m_value = ValueType();
return *this;
}
bool ZoneDefinitionParserValue::IsEof() const
{
return m_type == ZoneDefinitionParserValueType::END_OF_FILE;
}
const TokenPos& ZoneDefinitionParserValue::GetPos() const
{
return m_pos;
}
char ZoneDefinitionParserValue::CharacterValue() const
{
assert(m_type == ZoneDefinitionParserValueType::CHARACTER);
return m_value.char_value;
}
std::string& ZoneDefinitionParserValue::StringValue() const
{
assert(m_type == ZoneDefinitionParserValueType::STRING);
return *m_value.string_value;
}
std::string& ZoneDefinitionParserValue::FieldValue() const
{
assert(m_type == ZoneDefinitionParserValueType::FIELD);
return *m_value.string_value;
}
size_t ZoneDefinitionParserValue::FieldHash() const
{
assert(m_type == ZoneDefinitionParserValueType::FIELD);
return m_hash;
}

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@ -0,0 +1,58 @@
#pragma once
#include <string>
#include "Parsing/IParserValue.h"
#include "Utils/ClassUtils.h"
#include "Parsing/TokenPos.h"
enum class ZoneDefinitionParserValueType
{
// Meta tokens
INVALID,
END_OF_FILE,
CHARACTER,
STRING,
FIELD,
// End
MAX
};
class ZoneDefinitionParserValue final : public IParserValue
{
public:
TokenPos m_pos;
ZoneDefinitionParserValueType m_type;
size_t m_hash;
union ValueType
{
char char_value;
std::string* string_value;
} m_value;
static ZoneDefinitionParserValue Invalid(TokenPos pos);
static ZoneDefinitionParserValue EndOfFile(TokenPos pos);
static ZoneDefinitionParserValue Character(TokenPos pos, char c);
static ZoneDefinitionParserValue String(TokenPos pos, std::string* str);
static ZoneDefinitionParserValue Field(TokenPos pos, std::string* field);
private:
ZoneDefinitionParserValue(TokenPos pos, ZoneDefinitionParserValueType type);
public:
~ZoneDefinitionParserValue() override;
ZoneDefinitionParserValue(const ZoneDefinitionParserValue& other) = delete;
ZoneDefinitionParserValue(ZoneDefinitionParserValue&& other) noexcept;
ZoneDefinitionParserValue& operator=(const ZoneDefinitionParserValue& other) = delete;
ZoneDefinitionParserValue& operator=(ZoneDefinitionParserValue&& other) noexcept;
_NODISCARD bool IsEof() const override;
_NODISCARD const TokenPos& GetPos() const override;
_NODISCARD char CharacterValue() const;
_NODISCARD std::string& StringValue() const;
_NODISCARD std::string& FieldValue() const;
_NODISCARD size_t FieldHash() const;
};