patrick/plasp
Archived
1
0
Fork 0
Code Issues 12 Releases 8 Activity

Refactored tokenizer to lazily evaluate file locations.

Browse Source
This commit is contained in:
Patrick Lühne
2017-06-18 18:15:04 +02:00
parent 04dffdb09e
commit 4c0583c91f
30 changed files with 420 additions and 260 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
lib/pddlparse/include/pddlparse/Context.h
View File

@@ -23,7 +23,7 @@ struct Context
}
// TODO: replace std::string with char *
using WarningCallback = std::function<void (tokenize::Location, const std::string &)>;
using WarningCallback = std::function<void (tokenize::Location &&, const std::string &)>;
Context() = default;
~Context() = default;

35
lib/pddlparse/include/pddlparse/Exception.h
View File

@@ -2,9 +2,10 @@
#define __PDDL_PARSE__EXCEPTION_H
#include <exception>
#include <experimental/optional>
#include <string>
#include <tokenize/Stream.h>
#include <tokenize/Location.h>
namespace pddl
{
@@ -18,48 +19,45 @@ namespace pddl
class Exception: public std::exception
{
public:
explicit Exception()
Exception()
: Exception("unspecified parser error")
{
}
explicit Exception(const char *message)
Exception(const char *message)
: Exception(static_cast<std::string>(message))
{
}
explicit Exception(const std::string &message)
Exception(const std::string &message)
: m_message{message}
{
}
explicit Exception(const tokenize::Location &location)
: Exception(location, "unspecified parser error")
Exception(tokenize::Location &&location)
: Exception(std::forward<tokenize::Location>(location), "unspecified parser error")
{
}
explicit Exception(const tokenize::Location &location, const char *message)
: Exception(location, static_cast<std::string>(message))
Exception(tokenize::Location &&location, const char *message)
: Exception(std::forward<tokenize::Location>(location), static_cast<std::string>(message))
{
}
explicit Exception(const tokenize::Location &location, const std::string &message)
: m_location{location},
m_message{message},
// TODO: refactor
m_plainMessage{std::string(m_location.sectionStart) + ":" + std::to_string(m_location.rowStart)
+ ":" + std::to_string(m_location.columnStart) + " " + m_message}
Exception(tokenize::Location &&location, const std::string &message)
: m_location{std::move(location)},
m_message{message}
{
}
~Exception() noexcept = default;
const char *what() const throw()
const char *what() const noexcept
{
return m_plainMessage.c_str();
return m_message.c_str();
}
const tokenize::Location &location() const
const std::experimental::optional<tokenize::Location> &location() const
{
return m_location;
}
@@ -70,9 +68,8 @@ class Exception: public std::exception
}
private:
tokenize::Location m_location;
std::experimental::optional<tokenize::Location> m_location;
std::string m_message;
std::string m_plainMessage;
};
////////////////////////////////////////////////////////////////////////////////////////////////////

8
lib/pddlparse/include/pddlparse/detail/parsing/Action.h
View File

@@ -34,12 +34,12 @@ class ActionParser
Context &m_context;
ast::Domain &m_domain;
tokenize::Stream::Position m_parametersPosition;
tokenize::Stream::Position m_preconditionPosition;
tokenize::Stream::Position m_effectPosition;
tokenize::StreamPosition m_parametersPosition;
tokenize::StreamPosition m_preconditionPosition;
tokenize::StreamPosition m_effectPosition;
// For compatibility with old PDDL versions
tokenize::Stream::Position m_varsPosition;
tokenize::StreamPosition m_varsPosition;
};
////////////////////////////////////////////////////////////////////////////////////////////////////

4
lib/pddlparse/include/pddlparse/detail/parsing/Description.h
View File

@@ -27,8 +27,8 @@ class DescriptionParser
void findSections();
Context &m_context;
tokenize::Stream::Position m_domainPosition;
tokenize::Stream::Position m_problemPosition;
tokenize::StreamPosition m_domainPosition;
tokenize::StreamPosition m_problemPosition;
};
////////////////////////////////////////////////////////////////////////////////////////////////////

10
lib/pddlparse/include/pddlparse/detail/parsing/Domain.h
View File

@@ -35,11 +35,11 @@ class DomainParser
Context &m_context;
tokenize::Stream::Position m_requirementsPosition;
tokenize::Stream::Position m_typesPosition;
tokenize::Stream::Position m_constantsPosition;
tokenize::Stream::Position m_predicatesPosition;
std::vector<tokenize::Stream::Position> m_actionPositions;
tokenize::StreamPosition m_requirementsPosition;
tokenize::StreamPosition m_typesPosition;
tokenize::StreamPosition m_constantsPosition;
tokenize::StreamPosition m_predicatesPosition;
std::vector<tokenize::StreamPosition> m_actionPositions;
};
////////////////////////////////////////////////////////////////////////////////////////////////////

12
lib/pddlparse/include/pddlparse/detail/parsing/Expressions.h
View File

@@ -64,12 +64,12 @@ std::experimental::optional<std::unique_ptr<Derived>> parseBinary(Context &conte
auto argumentLeft = parseArgumentLeft(context, astContext, variableStack);
if (!argumentLeft)
throw ParserException(tokenizer.location(), "could not parse argument of “" + std::string(Derived::Identifier) + "” expression");
throw ParserException(tokenizer, "could not parse argument of “" + std::string(Derived::Identifier) + "” expression");
auto argumentRight = parseArgumentRight(context, astContext, variableStack);
if (!argumentRight)
throw ParserException(tokenizer.location(), "could not parse argument of “" + std::string(Derived::Identifier) + "” expression");
throw ParserException(tokenizer, "could not parse argument of “" + std::string(Derived::Identifier) + "” expression");
tokenizer.expect<std::string>(")");
@@ -103,7 +103,7 @@ std::experimental::optional<std::unique_ptr<Derived>> parseNAry(Context &context
auto argument = parseArgument(context, astContext, variableStack);
if (!argument)
throw ParserException(tokenizer.location(), "could not parse argument of “" + std::string(Derived::Identifier) + "” expression");
throw ParserException(tokenizer, "could not parse argument of “" + std::string(Derived::Identifier) + "” expression");
arguments.emplace_back(std::move(argument.value()));
@@ -111,7 +111,7 @@ std::experimental::optional<std::unique_ptr<Derived>> parseNAry(Context &context
}
if (arguments.empty())
context.warningCallback(tokenizer.location(), "“" + std::string(Derived::Identifier) + "” expressions should not be empty");
context.warningCallback(tokenizer, "“" + std::string(Derived::Identifier) + "” expressions should not be empty");
tokenizer.expect<std::string>(")");
@@ -147,7 +147,7 @@ std::experimental::optional<std::unique_ptr<Derived>> parseQuantified(Context &c
auto argument = parseArgument(context, astContext, variableStack);
if (!argument)
throw ParserException(tokenizer.location(), "could not parse argument of “" + std::string(Derived::Identifier) + "” expression");
throw ParserException(tokenizer, "could not parse argument of “" + std::string(Derived::Identifier) + "” expression");
// Clean up variable stack
variableStack.pop();
@@ -221,7 +221,7 @@ std::experimental::optional<ast::NotPointer<Argument>> parseNot(Context &context
auto argument = parseArgument(context, astContext, variableStack);
if (!argument)
throw ParserException(tokenizer.location(), "could not parse argument of “not” expression");
throw ParserException(tokenizer, "could not parse argument of “not” expression");
tokenizer.expect<std::string>(")");

10
lib/pddlparse/include/pddlparse/detail/parsing/Problem.h
View File

@@ -36,11 +36,11 @@ class ProblemParser
Context &m_context;
ast::Domain &m_domain;
tokenize::Stream::Position m_domainPosition;
tokenize::Stream::Position m_requirementsPosition;
tokenize::Stream::Position m_objectsPosition;
tokenize::Stream::Position m_initialStatePosition;
tokenize::Stream::Position m_goalPosition;
tokenize::StreamPosition m_domainPosition;
tokenize::StreamPosition m_requirementsPosition;
tokenize::StreamPosition m_objectsPosition;
tokenize::StreamPosition m_initialStatePosition;
tokenize::StreamPosition m_goalPosition;
};
////////////////////////////////////////////////////////////////////////////////////////////////////

8
lib/pddlparse/src/pddlparse/detail/Requirements.cpp
View File

@@ -61,9 +61,9 @@ void checkRequirement(ast::Domain &domain, ast::Requirement requirement, Context
return;
if (context.mode == Mode::Compatibility)
context.warningCallback(context.tokenizer.location(), "requirement “" + std::string(toString(requirement)) + "” used but never declared, silently adding requirement");
context.warningCallback(context.tokenizer, "requirement “" + std::string(toString(requirement)) + "” used but never declared, silently adding requirement");
else
throw ParserException(context.tokenizer.location(), "requirement “" + std::string(toString(requirement)) + "” used but never declared");
throw ParserException(context.tokenizer, "requirement “" + std::string(toString(requirement)) + "” used but never declared");
domain.requirements.push_back(requirement);
}
@@ -76,9 +76,9 @@ void checkRequirement(ast::Problem &problem, ast::Requirement requirement, Conte
return;
if (context.mode == Mode::Compatibility)
context.warningCallback(context.tokenizer.location(), "requirement “" + std::string(toString(requirement)) + "” used but never declared, silently adding requirement");
context.warningCallback(context.tokenizer, "requirement “" + std::string(toString(requirement)) + "” used but never declared, silently adding requirement");
else
throw ParserException(context.tokenizer.location(), "requirement “" + std::string(toString(requirement)) + "” used but never declared");
throw ParserException(context.tokenizer, "requirement “" + std::string(toString(requirement)) + "” used but never declared");
problem.requirements.push_back(requirement);
}

24
lib/pddlparse/src/pddlparse/detail/parsing/Action.cpp
View File

@@ -23,10 +23,10 @@ namespace detail
ActionParser::ActionParser(Context &context, ast::Domain &domain)
: m_context{context},
m_domain{domain},
m_parametersPosition{tokenize::Stream::InvalidPosition},
m_preconditionPosition{tokenize::Stream::InvalidPosition},
m_effectPosition{tokenize::Stream::InvalidPosition},
m_varsPosition{tokenize::Stream::InvalidPosition}
m_parametersPosition{tokenize::InvalidStreamPosition},
m_preconditionPosition{tokenize::InvalidStreamPosition},
m_effectPosition{tokenize::InvalidStreamPosition},
m_varsPosition{tokenize::InvalidStreamPosition}
{
}
@@ -40,26 +40,26 @@ ast::ActionPointer ActionParser::parse()
auto &tokenizer = m_context.tokenizer;
if (m_parametersPosition != tokenize::Stream::InvalidPosition)
if (m_parametersPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_parametersPosition);
parseParameterSection(*action);
}
// For compatibility with old PDDL versions, vars sections are parsed in addition to parameters
if (m_varsPosition != tokenize::Stream::InvalidPosition)
if (m_varsPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_varsPosition);
parseVarsSection(*action);
}
if (m_preconditionPosition != tokenize::Stream::InvalidPosition)
if (m_preconditionPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_preconditionPosition);
parsePreconditionSection(*action);
}
if (m_effectPosition != tokenize::Stream::InvalidPosition)
if (m_effectPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_effectPosition);
parseEffectSection(*action);
@@ -84,10 +84,10 @@ void ActionParser::findSections(ast::Action &action)
const auto setSectionPosition =
[&](const std::string &sectionName, auto &sectionPosition, const auto value, bool unique = false)
{
if (unique && sectionPosition != tokenize::Stream::InvalidPosition)
if (unique && sectionPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(value);
throw ParserException(tokenizer.location(), "only one “:" + sectionName + "” section allowed");
throw ParserException(tokenizer, "only one “:" + sectionName + "” section allowed");
}
sectionPosition = value;
@@ -114,7 +114,7 @@ void ActionParser::findSections(ast::Action &action)
const auto sectionIdentifier = tokenizer.getIdentifier();
tokenizer.seek(position);
throw ParserException(tokenizer.location(), "unknown action section “" + sectionIdentifier + "”");
throw ParserException(tokenizer, "unknown action section “" + sectionIdentifier + "”");
}
tokenizer.expect<std::string>("(");
@@ -181,7 +181,7 @@ void ActionParser::parseVarsSection(ast::Action &action)
tokenizer.expect<std::string>(":vars");
tokenizer.expect<std::string>("(");
m_context.warningCallback(tokenizer.location(), "“vars” section is not part of the PDDL 3.1 specification, treating it like additional “parameters” section");
m_context.warningCallback(tokenizer, "“vars” section is not part of the PDDL 3.1 specification, treating it like additional “parameters” section");
parseAndAddVariableDeclarations(m_context, m_domain, action.parameters);

2
lib/pddlparse/src/pddlparse/detail/parsing/Constant.cpp
View File

@@ -73,7 +73,7 @@ ast::ConstantPointer parseConstant(Context &context, ASTContext &astContext)
auto constant = findConstant(constantName, astContext);
if (!constant)
throw ParserException(tokenizer.location(), "undeclared constant “" + constantName + "”");
throw ParserException(tokenizer, "undeclared constant “" + constantName + "”");
return std::move(constant.value());
}

18
lib/pddlparse/src/pddlparse/detail/parsing/Description.cpp
View File

@@ -19,8 +19,8 @@ namespace detail
DescriptionParser::DescriptionParser(Context &context)
: m_context{context},
m_domainPosition{tokenize::Stream::InvalidPosition},
m_problemPosition{tokenize::Stream::InvalidPosition}
m_domainPosition{tokenize::InvalidStreamPosition},
m_problemPosition{tokenize::InvalidStreamPosition}
{
}
@@ -33,7 +33,7 @@ ast::Description DescriptionParser::parse()
findSections();
if (m_domainPosition == tokenize::Stream::InvalidPosition)
if (m_domainPosition == tokenize::InvalidStreamPosition)
throw ParserException("no PDDL domain specified");
tokenizer.seek(m_domainPosition);
@@ -41,7 +41,7 @@ ast::Description DescriptionParser::parse()
auto domain = DomainParser(m_context).parse();
// If no problem is given, return just the domain
if (m_problemPosition == tokenize::Stream::InvalidPosition)
if (m_problemPosition == tokenize::InvalidStreamPosition)
return {std::move(domain), std::experimental::nullopt};
tokenizer.seek(m_problemPosition);
@@ -73,7 +73,7 @@ void DescriptionParser::findSections()
if (m_context.mode == Mode::Compatibility && tokenizer.testAndReturn<std::string>("in-package"))
{
m_context.warningCallback(tokenizer.location(), "“in-package” section is not part of the PDDL 3.1 specification, ignoring section");
m_context.warningCallback(tokenizer, "“in-package” section is not part of the PDDL 3.1 specification, ignoring section");
skipSection(tokenizer);
tokenizer.skipWhiteSpace();
@@ -86,8 +86,8 @@ void DescriptionParser::findSections()
if (tokenizer.testAndSkip<std::string>("domain"))
{
if (m_domainPosition != tokenize::Stream::InvalidPosition)
throw ParserException(tokenizer.location(), "PDDL description may not contain two domains");
if (m_domainPosition != tokenize::InvalidStreamPosition)
throw ParserException(tokenizer, "PDDL description may not contain two domains");
m_domainPosition = position;
skipSection(tokenizer);
@@ -95,7 +95,7 @@ void DescriptionParser::findSections()
}
else if (m_context.tokenizer.testAndSkip<std::string>("problem"))
{
if (m_problemPosition != tokenize::Stream::InvalidPosition)
if (m_problemPosition != tokenize::InvalidStreamPosition)
throw ParserException("PDDL description may not contain two problems currently");
m_problemPosition = position;
@@ -105,7 +105,7 @@ void DescriptionParser::findSections()
else
{
const auto sectionIdentifier = tokenizer.get<std::string>();
throw ParserException(tokenizer.location(), "unknown PDDL section “" + sectionIdentifier + "”");
throw ParserException(tokenizer, "unknown PDDL section “" + sectionIdentifier + "”");
}
tokenizer.skipWhiteSpace();

30
lib/pddlparse/src/pddlparse/detail/parsing/Domain.cpp
View File

@@ -22,10 +22,10 @@ namespace detail
DomainParser::DomainParser(Context &context)
: m_context{context},
m_requirementsPosition{tokenize::Stream::InvalidPosition},
m_typesPosition{tokenize::Stream::InvalidPosition},
m_constantsPosition{tokenize::Stream::InvalidPosition},
m_predicatesPosition{tokenize::Stream::InvalidPosition}
m_requirementsPosition{tokenize::InvalidStreamPosition},
m_typesPosition{tokenize::InvalidStreamPosition},
m_constantsPosition{tokenize::InvalidStreamPosition},
m_predicatesPosition{tokenize::InvalidStreamPosition}
{
}
@@ -39,32 +39,32 @@ ast::DomainPointer DomainParser::parse()
auto &tokenizer = m_context.tokenizer;
if (m_requirementsPosition != tokenize::Stream::InvalidPosition)
if (m_requirementsPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_requirementsPosition);
parseRequirementSection(*domain);
}
if (m_typesPosition != tokenize::Stream::InvalidPosition)
if (m_typesPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_typesPosition);
parseTypeSection(*domain);
}
if (m_constantsPosition != tokenize::Stream::InvalidPosition)
if (m_constantsPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_constantsPosition);
parseConstantSection(*domain);
}
if (m_predicatesPosition != tokenize::Stream::InvalidPosition)
if (m_predicatesPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_predicatesPosition);
parsePredicateSection(*domain);
}
for (size_t i = 0; i < m_actionPositions.size(); i++)
if (m_actionPositions[i] != tokenize::Stream::InvalidPosition)
if (m_actionPositions[i] != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_actionPositions[i]);
parseActionSection(*domain);
@@ -93,10 +93,10 @@ void DomainParser::findSections(ast::Domain &domain)
const auto setSectionPosition =
[&](const std::string &sectionName, auto &sectionPosition, const auto value, bool unique = false)
{
if (unique && sectionPosition != tokenize::Stream::InvalidPosition)
if (unique && sectionPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(value);
throw ParserException(tokenizer.location(), "only one “:" + sectionName + "” section allowed");
throw ParserException(tokenizer, "only one “:" + sectionName + "” section allowed");
}
sectionPosition = value;
@@ -125,7 +125,7 @@ void DomainParser::findSections(ast::Domain &domain)
setSectionPosition("predicates", m_predicatesPosition, position, true);
else if (tokenizer.testIdentifierAndSkip("action"))
{
m_actionPositions.emplace_back(tokenize::Stream::InvalidPosition);
m_actionPositions.emplace_back(tokenize::InvalidStreamPosition);
setSectionPosition("action", m_actionPositions.back(), position);
}
else if (tokenizer.testIdentifierAndSkip("functions")
@@ -137,7 +137,7 @@ void DomainParser::findSections(ast::Domain &domain)
const auto sectionIdentifier = tokenizer.getIdentifier();
m_context.warningCallback(tokenizer.location(), "section type “" + sectionIdentifier + "” currently unsupported, ignoring section");
m_context.warningCallback(tokenizer, "section type “" + sectionIdentifier + "” currently unsupported, ignoring section");
tokenizer.seek(sectionIdentifierPosition);
}
@@ -146,7 +146,7 @@ void DomainParser::findSections(ast::Domain &domain)
const auto sectionIdentifier = tokenizer.getIdentifier();
tokenizer.seek(position);
throw ParserException(tokenizer.location(), "unknown domain section “" + sectionIdentifier + "”");
throw ParserException(tokenizer, "unknown domain section “" + sectionIdentifier + "”");
}
// Skip section for now and parse it later
@@ -246,7 +246,7 @@ void DomainParser::parseTypeSection(ast::Domain &domain)
while (tokenizer.currentCharacter() != ')')
{
if (tokenizer.currentCharacter() == '(')
throw ParserException(tokenizer.location(), "only primitive types are allowed in type section");
throw ParserException(tokenizer, "only primitive types are allowed in type section");
parseAndAddPrimitiveTypeDeclarations(m_context, domain);

4
lib/pddlparse/src/pddlparse/detail/parsing/Effect.cpp
View File

@@ -83,7 +83,7 @@ std::experimental::optional<ast::Effect> parseEffectBody(Context &context, ASTCo
const auto expressionIdentifier = tokenizer.getIdentifier();
tokenizer.seek(position);
throw ParserException(tokenizer.location(), "expression type “" + expressionIdentifier + "” unknown or not allowed in effect body");
throw ParserException(tokenizer, "expression type “" + expressionIdentifier + "” unknown or not allowed in effect body");
}
////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -144,7 +144,7 @@ std::experimental::optional<ast::ConditionalEffect> parseConditionalEffectBody(C
const auto expressionIdentifier = tokenizer.getIdentifier();
tokenizer.seek(position);
throw ParserException(tokenizer.location(), "expression type “" + expressionIdentifier + "” unknown or not allowed in conditional effect body");
throw ParserException(tokenizer, "expression type “" + expressionIdentifier + "” unknown or not allowed in conditional effect body");
}
////////////////////////////////////////////////////////////////////////////////////////////////////

2
lib/pddlparse/src/pddlparse/detail/parsing/InitialState.cpp
View File

@@ -28,7 +28,7 @@ ast::InitialState parseInitialState(Context &context, ASTContext &astContext, Va
auto fact = parseFact(context, astContext, variableStack);
if (!fact)
throw ParserException(tokenizer.location(), "invalid initial state fact");
throw ParserException(tokenizer, "invalid initial state fact");
initialState.facts.emplace_back(std::move(fact.value()));

2
lib/pddlparse/src/pddlparse/detail/parsing/Precondition.cpp
View File

@@ -99,7 +99,7 @@ std::experimental::optional<ast::Precondition> parsePreconditionBody(Context &co
const auto expressionIdentifier = tokenizer.getIdentifier();
tokenizer.seek(position);
throw ParserException(tokenizer.location(), "expression type “" + expressionIdentifier + "” unknown or not allowed in precondition body");
throw ParserException(tokenizer, "expression type “" + expressionIdentifier + "” unknown or not allowed in precondition body");
}
////////////////////////////////////////////////////////////////////////////////////////////////////

2
lib/pddlparse/src/pddlparse/detail/parsing/Predicate.cpp
View File

@@ -78,7 +78,7 @@ std::experimental::optional<ast::PredicatePointer> parsePredicate(Context &conte
{
// TODO: enumerate candidates and why they are incompatible
tokenizer.seek(previousPosition);
throw ParserException(tokenizer.location(), "no matching declaration found for predicate “" + name + "”");
throw ParserException(tokenizer, "no matching declaration found for predicate “" + name + "”");
}
auto *declaration = matchingPredicateDeclaration->get();

6
lib/pddlparse/src/pddlparse/detail/parsing/PrimitiveType.cpp
View File

@@ -22,7 +22,7 @@ ast::PrimitiveTypePointer parsePrimitiveType(Context &context, ast::Domain &doma
auto typeName = tokenizer.getIdentifier();
if (typeName.empty())
throw ParserException(tokenizer.location(), "could not parse primitive type, expected identifier");
throw ParserException(tokenizer, "could not parse primitive type, expected identifier");
auto matchingType = std::find_if(types.begin(), types.end(),
[&](auto &primitiveTypeDeclaration)
@@ -34,9 +34,9 @@ ast::PrimitiveTypePointer parsePrimitiveType(Context &context, ast::Domain &doma
if (matchingType == types.end())
{
if (context.mode != Mode::Compatibility)
throw ParserException(tokenizer.location(), "primitive type “" + typeName + "” used without or before declaration");
throw ParserException(tokenizer, "primitive type “" + typeName + "” used without or before declaration");
context.warningCallback(tokenizer.location(), "primitive type “" + typeName + "” used without or before declaration, silently adding declaration");
context.warningCallback(tokenizer, "primitive type “" + typeName + "” used without or before declaration, silently adding declaration");
types.emplace_back(std::make_unique<ast::PrimitiveTypeDeclaration>(std::move(typeName)));

36
lib/pddlparse/src/pddlparse/detail/parsing/Problem.cpp
View File

@@ -22,11 +22,11 @@ namespace detail
ProblemParser::ProblemParser(Context &context, ast::Domain &domain)
: m_context{context},
m_domain{domain},
m_domainPosition{tokenize::Stream::InvalidPosition},
m_requirementsPosition{tokenize::Stream::InvalidPosition},
m_objectsPosition{tokenize::Stream::InvalidPosition},
m_initialStatePosition{tokenize::Stream::InvalidPosition},
m_goalPosition{tokenize::Stream::InvalidPosition}
m_domainPosition{tokenize::InvalidStreamPosition},
m_requirementsPosition{tokenize::InvalidStreamPosition},
m_objectsPosition{tokenize::InvalidStreamPosition},
m_initialStatePosition{tokenize::InvalidStreamPosition},
m_goalPosition{tokenize::InvalidStreamPosition}
{
}
@@ -40,32 +40,32 @@ ast::ProblemPointer ProblemParser::parse()
auto &tokenizer = m_context.tokenizer;
if (m_domainPosition == tokenize::Stream::InvalidPosition)
throw ParserException(tokenizer.location(), "problem description does not specify a corresponding domain");
if (m_domainPosition == tokenize::InvalidStreamPosition)
throw ParserException(tokenizer, "problem description does not specify a corresponding domain");
tokenizer.seek(m_domainPosition);
parseDomainSection(*problem);
if (m_requirementsPosition != tokenize::Stream::InvalidPosition)
if (m_requirementsPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_requirementsPosition);
parseRequirementSection(*problem);
}
if (m_objectsPosition != tokenize::Stream::InvalidPosition)
if (m_objectsPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(m_objectsPosition);
parseObjectSection(*problem);
}
if (m_initialStatePosition == tokenize::Stream::InvalidPosition)
throw ParserException(tokenizer.location(), "problem description does not specify an initial state");
if (m_initialStatePosition == tokenize::InvalidStreamPosition)
throw ParserException(tokenizer, "problem description does not specify an initial state");
tokenizer.seek(m_initialStatePosition);
parseInitialStateSection(*problem);
if (m_goalPosition == tokenize::Stream::InvalidPosition)
throw ParserException(tokenizer.location(), "problem description does not specify a goal");
if (m_goalPosition == tokenize::InvalidStreamPosition)
throw ParserException(tokenizer, "problem description does not specify a goal");
tokenizer.seek(m_goalPosition);
parseGoalSection(*problem);
@@ -91,10 +91,10 @@ void ProblemParser::findSections(ast::Problem &problem)
const auto setSectionPosition =
[&](const std::string &sectionName, auto &sectionPosition, const auto value, bool unique = false)
{
if (unique && sectionPosition != tokenize::Stream::InvalidPosition)
if (unique && sectionPosition != tokenize::InvalidStreamPosition)
{
tokenizer.seek(value);
throw ParserException(tokenizer.location(), "only one “:" + sectionName + "” section allowed");
throw ParserException(tokenizer, "only one “:" + sectionName + "” section allowed");
}
sectionPosition = value;
@@ -129,7 +129,7 @@ void ProblemParser::findSections(ast::Problem &problem)
const auto sectionIdentifier = tokenizer.getIdentifier();
m_context.warningCallback(tokenizer.location(), "section type “" + sectionIdentifier + "” currently unsupported, ignoring section");
m_context.warningCallback(tokenizer, "section type “" + sectionIdentifier + "” currently unsupported, ignoring section");
tokenizer.seek(sectionIdentifierPosition);
}
@@ -138,7 +138,7 @@ void ProblemParser::findSections(ast::Problem &problem)
const auto sectionIdentifier = tokenizer.getIdentifier();
tokenizer.seek(position);
throw ParserException(tokenizer.location(), "unknown problem section “" + sectionIdentifier + "”");
throw ParserException(tokenizer, "unknown problem section “" + sectionIdentifier + "”");
}
// Skip section for now and parse it later
@@ -165,7 +165,7 @@ void ProblemParser::parseDomainSection(ast::Problem &problem)
const auto domainName = tokenizer.getIdentifier();
if (problem.domain->name != domainName)
throw ParserException(tokenizer.location(), "domains do not match (“" + problem.domain->name + "” and “" + domainName + "”)");
throw ParserException(tokenizer, "domains do not match (“" + problem.domain->name + "” and “" + domainName + "”)");
tokenizer.expect<std::string>(")");
}

2
lib/pddlparse/src/pddlparse/detail/parsing/Requirement.cpp
View File

@@ -67,7 +67,7 @@ std::experimental::optional<ast::Requirement> parseRequirement(Context &context)
return matchingRequirement->second;
if (context.mode == Mode::Compatibility && (requirementName == "goal-utilities" || requirementName == "domain-axioms"))
context.warningCallback(tokenizer.location(), "“" + requirementName + "” requirement is not part of the PDDL 3.1 specification, ignoring requirement");
context.warningCallback(tokenizer, "“" + requirementName + "” requirement is not part of the PDDL 3.1 specification, ignoring requirement");
return std::experimental::nullopt;
}

2
lib/pddlparse/src/pddlparse/detail/parsing/Type.cpp
View File

@@ -37,7 +37,7 @@ ast::Type parseType(Context &context, ast::Domain &domain)
auto eitherType = parseEither<ast::PrimitiveTypePointer>(context, astContext, variableStack, parsePrimitiveTypeWrapper);
if (!eitherType)
throw ParserException(tokenizer.location(), "expected primitive type or “either” expression");
throw ParserException(tokenizer, "expected primitive type or “either” expression");
return std::move(eitherType.value());
}

2
lib/pddlparse/src/pddlparse/detail/parsing/Unsupported.cpp
View File

@@ -22,7 +22,7 @@ ast::UnsupportedPointer parseUnsupported(Context &context)
auto expressionType = tokenizer.getIdentifier();
context.warningCallback(tokenizer.location(), "expression type “" + expressionType + "” currently unsupported in this context, substituting it with placeholder");
context.warningCallback(tokenizer, "expression type “" + expressionType + "” currently unsupported in this context, substituting it with placeholder");
skipSection(tokenizer);

2
lib/pddlparse/src/pddlparse/detail/parsing/Variable.cpp
View File

@@ -64,7 +64,7 @@ ast::VariablePointer parseVariable(Context &context, VariableStack &variableStac
auto variableDeclaration = variableStack.findVariableDeclaration(variableName);
if (!variableDeclaration)
throw ParserException(tokenizer.location(), "undeclared variable “" + variableName + "”");
throw ParserException(tokenizer, "undeclared variable “" + variableName + "”");
return std::make_unique<ast::Variable>(variableDeclaration.value());
}

41
lib/tokenize/include/tokenize/Location.h
View File

@@ -1,7 +1,7 @@
#ifndef __TOKENIZE__LOCATION_H
#define __TOKENIZE__LOCATION_H
#include <cstdlib>
#include <tokenize/StreamPosition.h>
namespace tokenize
{
@@ -12,16 +12,41 @@ namespace tokenize
//
////////////////////////////////////////////////////////////////////////////////////////////////////
struct Location
class Stream;
////////////////////////////////////////////////////////////////////////////////////////////////////
class Location
{
const char *sectionStart = nullptr;
const char *sectionEnd = nullptr;
public:
Location(Stream &stream);
Location(Stream &stream, StreamPosition position);
std::size_t rowStart = -1;
std::size_t rowEnd = -1;
const char *sectionStart() const;
const char *sectionEnd() const;
std::size_t columnStart = -1;
std::size_t columnEnd = -1;
StreamPosition rowStart() const;
StreamPosition rowEnd() const;
StreamPosition columnStart() const;
StreamPosition columnEnd() const;
private:
void initializeLazily() const;
Stream &m_stream;
const StreamPosition m_position;
mutable bool m_isInitialized{false};
mutable const char *m_sectionStart{nullptr};
mutable const char *m_sectionEnd{nullptr};
mutable StreamPosition m_rowStart{InvalidStreamPosition};
mutable StreamPosition m_rowEnd{InvalidStreamPosition};
mutable StreamPosition m_columnStart{InvalidStreamPosition};
mutable StreamPosition m_columnEnd{InvalidStreamPosition};
};
////////////////////////////////////////////////////////////////////////////////////////////////////

26
lib/tokenize/include/tokenize/Stream.h
View File

@@ -9,6 +9,7 @@
#include <vector>
#include <tokenize/Location.h>
#include <tokenize/StreamPosition.h>
#include <tokenize/TokenizerException.h>
namespace tokenize
@@ -23,12 +24,9 @@ namespace tokenize
class Stream
{
public:
using Position = size_t;
static const Position InvalidPosition;
struct Delimiter
{
Position position;
StreamPosition position;
std::string sectionName;
};
@@ -46,15 +44,17 @@ class Stream
void read(const std::experimental::filesystem::path &path);
void reset();
void seek(Position position);
Position position() const;
Location location() const;
void seek(StreamPosition position);
StreamPosition position() const;
char currentCharacter() const
const std::vector<Delimiter> &delimiters() const
{
assert(m_position < m_stream.size());
return m_delimiters;
}
// TODO: check if this should be secured by check()
char currentCharacter()
{
check();
return m_stream[m_position];
}
@@ -69,15 +69,15 @@ class Stream
return m_position >= m_stream.size();
}
void check() const
void check()
{
if (atEnd())
throw TokenizerException(location(), "reading past end of file");
throw TokenizerException(*this, "reading past end of file");
}
protected:
std::string m_stream;
mutable Position m_position;
mutable StreamPosition m_position{0};
std::vector<Delimiter> m_delimiters;
};

23
lib/tokenize/include/tokenize/StreamPosition.h Normal file
View File

@@ -0,0 +1,23 @@
#ifndef __TOKENIZE__STREAM_POSITION_H
#define __TOKENIZE__STREAM_POSITION_H
#include <cstddef>
#include <limits>
namespace tokenize
{
////////////////////////////////////////////////////////////////////////////////////////////////////
//
// StreamPosition
//
////////////////////////////////////////////////////////////////////////////////////////////////////
using StreamPosition = size_t;
static const StreamPosition InvalidStreamPosition{std::numeric_limits<StreamPosition>::max()};
////////////////////////////////////////////////////////////////////////////////////////////////////
}
#endif

10
lib/tokenize/include/tokenize/Tokenizer.h
View File

@@ -189,7 +189,7 @@ void Tokenizer<TokenizerPolicy>::expect(const Type &expectedValue)
std::stringstream message;
message << "unexpected value, expected “" << expectedValue << "”";
throw TokenizerException(location(), message.str());
throw TokenizerException(*this, message.str());
}
////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -208,7 +208,7 @@ std::string Tokenizer<TokenizerPolicy>::getIdentifier()
if (!TokenizerPolicy::isIdentifierCharacter(character))
{
if (value.empty())
throw TokenizerException(location(), "could not parse identifier");
throw TokenizerException(*this, "could not parse identifier");
return value;
}
@@ -406,7 +406,7 @@ uint64_t Tokenizer<TokenizerPolicy>::getIntegerBody()
check();
if (!std::isdigit(currentCharacter()))
throw TokenizerException(location(), "could not read integer value");
throw TokenizerException(*this, "could not read integer value");
uint64_t value = 0;
@@ -448,7 +448,7 @@ uint64_t Tokenizer<TokenizerPolicy>::getImpl(Tag<uint64_t>)
skipWhiteSpace();
if (currentCharacter() == '-')
throw TokenizerException(location(), "expected unsigned integer, got signed one");
throw TokenizerException(*this, "expected unsigned integer, got signed one");
return getIntegerBody();
}
@@ -482,7 +482,7 @@ bool Tokenizer<TokenizerPolicy>::getImpl(Tag<bool>)
if (testAndSkip<char>('1'))
return true;
throw TokenizerException(location(), "could not read Boolean value");
throw TokenizerException(*this, "could not read Boolean value");
}
////////////////////////////////////////////////////////////////////////////////////////////////////

8
lib/tokenize/include/tokenize/TokenizerException.h
View File

@@ -30,10 +30,7 @@ class TokenizerException: public std::exception
explicit TokenizerException(const Location &location, const std::string &message)
: m_location{location},
m_message{message},
// TODO: refactor
m_plainMessage{std::string(m_location.sectionStart) + ":" + std::to_string(m_location.rowStart)
+ ":" + std::to_string(m_location.columnStart) + " " + m_message}
m_message{message}
{
}
@@ -41,7 +38,7 @@ class TokenizerException: public std::exception
const char *what() const noexcept
{
return m_plainMessage.c_str();
return m_message.c_str();
}
const Location &location() const
@@ -57,7 +54,6 @@ class TokenizerException: public std::exception
private:
Location m_location;
std::string m_message;
std::string m_plainMessage;
};
////////////////////////////////////////////////////////////////////////////////////////////////////

150
lib/tokenize/src/tokenize/Location.cpp Normal file
View File

@@ -0,0 +1,150 @@
#include <tokenize/Location.h>
#include <algorithm>
#include <tokenize/Stream.h>
namespace tokenize
{
////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Location
//
////////////////////////////////////////////////////////////////////////////////////////////////////
Location::Location(Stream &stream)
: m_stream{stream},
m_position{stream.position()}
{
}
////////////////////////////////////////////////////////////////////////////////////////////////////
Location::Location(Stream &stream, StreamPosition position)
: m_stream{stream},
m_position{position}
{
}
////////////////////////////////////////////////////////////////////////////////////////////////////
const char *Location::sectionStart() const
{
if (!m_isInitialized)
initializeLazily();
return m_sectionStart;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
const char *Location::sectionEnd() const
{
if (!m_isInitialized)
initializeLazily();
return m_sectionEnd;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
StreamPosition Location::rowStart() const
{
if (!m_isInitialized)
initializeLazily();
return m_rowStart;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
StreamPosition Location::rowEnd() const
{
if (!m_isInitialized)
initializeLazily();
return m_rowEnd;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
StreamPosition Location::columnStart() const
{
if (!m_isInitialized)
initializeLazily();
return m_columnStart;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
StreamPosition Location::columnEnd() const
{
if (!m_isInitialized)
initializeLazily();
return m_columnEnd;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
void Location::initializeLazily() const
{
const auto previousPosition = m_stream.position();
const auto &delimiters = m_stream.delimiters();
// Find current section
auto currentFile = std::find_if(delimiters.crbegin(), delimiters.crend(),
[&](const auto &fileDelimiter)
{
return m_position >= fileDelimiter.position;
});
// If the tokenizer is at the end of the stream, still count from the beginning of the last section
if (currentFile == delimiters.crend())
currentFile = delimiters.crbegin();
// Go back to beginning of section
m_stream.seek(currentFile->position);
StreamPosition row{1};
StreamPosition column{1};
// Compute the location character by character
while (true)
{
if (m_stream.atEnd())
break;
else if (m_stream.position() >= m_position)
break;
const auto character = m_stream.currentCharacter();
if (character == '\n')
{
row++;
column = 1;
}
else if (std::isblank(character) || std::isprint(character))
column++;
m_stream.advance();
}
m_sectionStart = currentFile->sectionName.c_str();
m_sectionEnd = currentFile->sectionName.c_str();
m_rowStart = row;
m_rowEnd = row;
m_columnStart = column;
m_columnEnd = column;
m_isInitialized = true;
m_stream.seek(previousPosition);
}
////////////////////////////////////////////////////////////////////////////////////////////////////
}

67
lib/tokenize/src/tokenize/Stream.cpp
View File

@@ -1,6 +1,5 @@
#include <tokenize/Stream.h>
#include <algorithm>
#include <fstream>
namespace tokenize
@@ -12,12 +11,7 @@ namespace tokenize
//
////////////////////////////////////////////////////////////////////////////////////////////////////
const Stream::Position Stream::InvalidPosition{std::numeric_limits<Position>::max()};
////////////////////////////////////////////////////////////////////////////////////////////////////
Stream::Stream()
: m_position{0}
{
std::setlocale(LC_NUMERIC, "C");
}
@@ -34,18 +28,16 @@ Stream::Stream(std::string streamName, std::istream &istream)
void Stream::read(std::string streamName, std::istream &istream)
{
// Store position of new section
const auto position = m_stream.size();
m_delimiters.push_back({m_stream.size(), streamName});
m_delimiters.push_back({position, streamName});
istream.seekg(0, std::ios::end);
/*istream.seekg(0, std::ios::end);
const auto streamSize = istream.tellg();
istream.seekg(0, std::ios::beg);
const auto startPosition = m_stream.size();
m_stream.resize(m_stream.size() + streamSize);
std::copy(std::istreambuf_iterator<char>(istream), std::istreambuf_iterator<char>(), m_stream.begin() + startPosition);
m_stream.resize(m_stream.size() + streamSize);*/
std::copy(std::istreambuf_iterator<char>(istream), std::istreambuf_iterator<char>(), std::back_inserter(m_stream));
}
////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -69,65 +61,18 @@ void Stream::reset()
////////////////////////////////////////////////////////////////////////////////////////////////////
void Stream::seek(Position position)
void Stream::seek(StreamPosition position)
{
m_position = position;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
typename Stream::Position Stream::position() const
StreamPosition Stream::position() const
{
return m_position;
}
////////////////////////////////////////////////////////////////////////////////////////////////////
Location Stream::location() const
{
const auto currentPosition = position();
// Find current section
auto currentFile = std::find_if(m_delimiters.crbegin(), m_delimiters.crend(),
[&](const auto &fileDelimiter)
{
return currentPosition >= fileDelimiter.position;
});
// If the tokenizer is at the end of the stream, still count from the beginning of the last section
if (currentFile == m_delimiters.crend())
currentFile = m_delimiters.crbegin();
// Go back to beginning of section
m_position = currentFile->position;
size_t row = 1;
size_t column = 1;
// Compute the location character by character
while (true)
{
if (currentPosition >= m_stream.size() && atEnd())
break;
else if (currentPosition < m_stream.size() && position() >= currentPosition)
break;
const auto character = currentCharacter();
if (character == '\n')
{
row++;
column = 1;
}
else if (std::isblank(character) || std::isprint(character))
column++;
m_position++;
}
return {currentFile->sectionName.c_str(), currentFile->sectionName.c_str(), row, row, column, column};
}
////////////////////////////////////////////////////////////////////////////////////////////////////
}

132
lib/tokenize/tests/TestTokenizer.cpp
View File

@@ -72,7 +72,7 @@ TEST_CASE("[tokenizer] While tokenizing, the cursor position is as expected", "[
std::stringstream s(" identifier 5 \n-51\t 0 1");
tokenize::Tokenizer<> p("input", s);
tokenize::Tokenizer<>::Position pos;
tokenize::StreamPosition pos;
pos = p.position();
REQUIRE(p.testAndReturn<std::string>("error") == false);
@@ -181,86 +181,108 @@ TEST_CASE("[tokenizer] While tokenizing, the cursor location is as expcected", "
const auto startPosition = p.position();
tokenize::Location l;
l = p.location();
REQUIRE(l.rowStart == 1u);
REQUIRE(l.columnStart == 1u);
REQUIRE(p.currentCharacter() == '1');
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 1u);
REQUIRE(l.columnStart() == 1u);
REQUIRE(p.currentCharacter() == '1');
}
REQUIRE_NOTHROW(p.advance());
l = p.location();
REQUIRE(l.rowStart == 1u);
REQUIRE(l.columnStart == 2u);
REQUIRE(p.currentCharacter() == '2');
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 1u);
REQUIRE(l.columnStart() == 2u);
REQUIRE(p.currentCharacter() == '2');
}
REQUIRE_NOTHROW(p.advance());
l = p.location();
REQUIRE(l.rowStart == 1u);
REQUIRE(l.columnStart == 3u);
REQUIRE(p.currentCharacter() == '3');
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 1u);
REQUIRE(l.columnStart() == 3u);
REQUIRE(p.currentCharacter() == '3');
}
REQUIRE_NOTHROW(p.advance());
l = p.location();
REQUIRE(l.rowStart == 1u);
REQUIRE(l.columnStart == 4u);
REQUIRE(p.currentCharacter() == ' ');
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 1u);
REQUIRE(l.columnStart() == 4u);
REQUIRE(p.currentCharacter() == ' ');
}
REQUIRE_NOTHROW(p.advance());
l = p.location();
REQUIRE(l.rowStart == 1u);
REQUIRE(l.columnStart == 5u);
REQUIRE(p.currentCharacter() == '\n');
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 1u);
REQUIRE(l.columnStart() == 5u);
REQUIRE(p.currentCharacter() == '\n');
}
REQUIRE_NOTHROW(p.advance());
l = p.location();
REQUIRE(l.rowStart == 2u);
REQUIRE(l.columnStart == 1u);
REQUIRE(p.currentCharacter() == '4');
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 2u);
REQUIRE(l.columnStart() == 1u);
REQUIRE(p.currentCharacter() == '4');
}
REQUIRE_NOTHROW(p.advance());
REQUIRE_NOTHROW(p.expect<std::string>("test1"));
l = p.location();
REQUIRE(l.rowStart == 3u);
REQUIRE(l.columnStart == 6u);
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 3u);
REQUIRE(l.columnStart() == 6u);
}
REQUIRE_NOTHROW(p.expect<std::string>("test2"));
l = p.location();
REQUIRE(l.rowStart == 4u);
REQUIRE(l.columnStart == 7u);
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 4u);
REQUIRE(l.columnStart() == 7u);
}
REQUIRE_NOTHROW(p.expect<std::string>("test3"));
l = p.location();
REQUIRE(l.rowStart == 5u);
REQUIRE(l.columnStart == 6u);
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 5u);
REQUIRE(l.columnStart() == 6u);
}
REQUIRE_NOTHROW(p.skipLine());
l = p.location();
REQUIRE(l.rowStart == 6u);
REQUIRE(l.columnStart == 1u);
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 6u);
REQUIRE(l.columnStart() == 1u);
}
REQUIRE_NOTHROW(p.skipLine());
l = p.location();
REQUIRE(l.rowStart == 7u);
REQUIRE(l.columnStart == 1u);
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 7u);
REQUIRE(l.columnStart() == 1u);
}
REQUIRE_NOTHROW(p.skipWhiteSpace());
l = p.location();
REQUIRE(l.rowStart == 10u);
REQUIRE(l.columnStart == 1u);
REQUIRE(p.atEnd());
{
auto l = tokenize::Location(p);
REQUIRE(l.rowStart() == 10u);
REQUIRE(l.columnStart() == 1u);
REQUIRE(p.atEnd());
}
p.reset();
REQUIRE(p.position() == startPosition);
@@ -289,19 +311,21 @@ TEST_CASE("[tokenizer] Comments are correctly removed", "[tokenizer]")
p1.removeComments(";", "\n", false);
tokenize::Location l;
REQUIRE_NOTHROW(p1.expect<std::string>("test1"));
l = p1.location();
REQUIRE(l.rowStart == 2u);
REQUIRE(l.columnStart == 6u);
{
auto l = tokenize::Location(p1);
REQUIRE(l.rowStart() == 2u);
REQUIRE(l.columnStart() == 6u);
}
REQUIRE_NOTHROW(p1.expect<std::string>("test2"));
l = p1.location();
REQUIRE(l.rowStart == 3u);
REQUIRE(l.columnStart == 6u);
{
auto l = tokenize::Location(p1);
REQUIRE(l.rowStart() == 3u);
REQUIRE(l.columnStart() == 6u);
}
p1.skipWhiteSpace();