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openmw-tes3coop/components/compiler/lineparser.hpp

100 lines
3.3 KiB
C++

#ifndef COMPILER_LINEPARSER_H_INCLUDED
#define COMPILER_LINEPARSER_H_INCLUDED
#include <vector>
#include <string>
#include <components/interpreter/types.hpp>
#include <components/misc/messageformatparser.hpp>
#include "parser.hpp"
#include "exprparser.hpp"
namespace Compiler
{
class Locals;
class Literals;
/// \brief Line parser, to be used in console scripts and as part of ScriptParser
class LineParser : public Parser
{
enum State
{
BeginState,
SetState, SetLocalVarState, SetGlobalVarState, SetPotentialMemberVarState,
SetMemberVarState, SetMemberVarState2,
MessageState, MessageCommaState, MessageButtonState, MessageButtonCommaState,
EndState, PotentialEndState /* may have a stray string argument */,
PotentialExplicitState, ExplicitState, MemberState
};
Locals& mLocals;
Literals& mLiterals;
std::vector<Interpreter::Type_Code>& mCode;
State mState;
std::string mName;
std::string mMemberName;
bool mReferenceMember;
int mButtons;
std::string mExplicit;
char mType;
ExprParser mExprParser;
bool mAllowExpression;
void parseExpression (Scanner& scanner, const TokenLoc& loc);
public:
LineParser (ErrorHandler& errorHandler, const Context& context, Locals& locals,
Literals& literals, std::vector<Interpreter::Type_Code>& code,
bool allowExpression = false);
///< \param allowExpression Allow lines consisting of a naked expression
/// (result is send to the messagebox interface)
virtual bool parseInt (int value, const TokenLoc& loc, Scanner& scanner);
///< Handle an int token.
/// \return fetch another token?
virtual bool parseFloat (float value, const TokenLoc& loc, Scanner& scanner);
///< Handle a float token.
/// \return fetch another token?
virtual bool parseName (const std::string& name, const TokenLoc& loc,
Scanner& scanner);
///< Handle a name token.
/// \return fetch another token?
virtual bool parseKeyword (int keyword, const TokenLoc& loc, Scanner& scanner);
///< Handle a keyword token.
/// \return fetch another token?
virtual bool parseSpecial (int code, const TokenLoc& loc, Scanner& scanner);
///< Handle a special character token.
/// \return fetch another token?
void reset();
///< Reset parser to clean state.
};
class GetArgumentsFromMessageFormat : public ::Misc::MessageFormatParser
{
private:
std::string mArguments;
protected:
virtual void visitedPlaceholder(Placeholder placeholder, char padding, int width, int precision);
virtual void visitedCharacter(char c) {}
public:
virtual void process(const std::string& message)
{
mArguments.clear();
::Misc::MessageFormatParser::process(message);
}
std::string getArguments() const { return mArguments; }
};
}
#endif