From 5453824394771ca21de32088a2842486b63e6f6d Mon Sep 17 00:00:00 2001 From: Mikko Rasa Date: Mon, 21 Aug 2006 09:42:41 +0000 Subject: [PATCH] Add files --- License.txt | 510 +++++++++++++++++++++++++++++++++++++++++++++ Package | 5 + source/Module | 4 + source/constant.h | 15 ++ source/input.cpp | 37 ++++ source/input.h | 31 +++ source/loader.h | 240 +++++++++++++++++++++ source/parser.cpp | 343 ++++++++++++++++++++++++++++++ source/parser.h | 42 ++++ source/statement.h | 35 ++++ source/token.h | 33 +++ source/value.cpp | 65 ++++++ source/value.h | 47 +++++ 13 files changed, 1407 insertions(+) create mode 100644 License.txt create mode 100644 Package create mode 100644 source/Module create mode 100644 source/constant.h create mode 100644 source/input.cpp create mode 100644 source/input.h create mode 100644 source/loader.h create mode 100644 source/parser.cpp create mode 100644 source/parser.h create mode 100644 source/statement.h create mode 100644 source/token.h create mode 100644 source/value.cpp create mode 100644 source/value.h diff --git a/License.txt b/License.txt new file mode 100644 index 0000000..2d2d780 --- /dev/null +++ b/License.txt @@ -0,0 +1,510 @@ + + GNU LESSER GENERAL PUBLIC LICENSE + Version 2.1, February 1999 + + Copyright (C) 1991, 1999 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + +[This is the first released version of the Lesser GPL. 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+ +#endif diff --git a/source/input.cpp b/source/input.cpp new file mode 100644 index 0000000..5b2d63b --- /dev/null +++ b/source/input.cpp @@ -0,0 +1,37 @@ +/* +This file is part of libmspparser +Copyright © 2006 Mikko Rasa, Mikkosoft Productions +Distributed under the LGPL +*/ +#include "input.h" + +namespace Msp { +namespace Parser { + +Input::Input(std::istream &i): + in(i), + line(1), + next(-1) +{ } + +int Input::get() +{ + int c=next; + next=-1; + if(c<0) c=in.get(); + + if(c=='\n') + ++line; + + return c; +} + +int Input::peek() +{ + if(next<0) + next=in.get(); + return next; +} + +} // namespace Parser +} // namespace Msp diff --git a/source/input.h b/source/input.h new file mode 100644 index 0000000..12d3eff --- /dev/null +++ b/source/input.h @@ -0,0 +1,31 @@ +/* +This file is part of libmspparser +Copyright © 2006 Mikko Rasa, Mikkosoft Productions +Distributed under the LGPL +*/ +#ifndef MSP_PARSER_INPUT_H_ +#define MSP_PARSER_INPUT_H_ + +#include + +namespace Msp { +namespace Parser { + +class Input +{ +public: + Input(std::istream &); + int get(); + int peek(); + unsigned get_line_number() const { return line; } + operator bool() const { return (bool)in; } +private: + std::istream ∈ + unsigned line; + int next; +}; + +} // namespace Parser +} // namespace Msp + +#endif diff --git a/source/loader.h b/source/loader.h new file mode 100644 index 0000000..5e8b2df --- /dev/null +++ b/source/loader.h @@ -0,0 +1,240 @@ +/* +This file is part of libmspparser +Copyright © 2006 Mikko Rasa, Mikkosoft Productions +Distributed under the LGPL +*/ +#ifndef MSP_PARSER_LOADER_H_ +#define MSP_PARSER_LOADER_H_ + +#include +#include +#include "parser.h" +#include "statement.h" +#include "value.h" + +namespace Msp { +namespace Parser { + +class Statement; + +template +class LoaderAction +{ +public: + virtual void execute(L &, const Statement &) const=0; + virtual ~LoaderAction() { } +protected: + LoaderAction() { } +}; + +template +class LoaderFunc0: public LoaderAction +{ +public: + typedef void (L::*FuncType)(); + + LoaderFunc0(FuncType f): func(f) { } + void execute(L &l, const Statement &st) const + { + if(st.args.size()!=0) throw TypeError("Wrong number of arguments"); + (l.*func)(); + }; +private: + FuncType func; +}; + +template +class LoaderFunc1: public LoaderAction +{ +public: + typedef void (L::*FuncType)(A0); + + LoaderFunc1(FuncType f): func(f) { } + void execute(L &l, const Statement &st) const + { + if(st.args.size()!=1) throw TypeError("Wrong number of arguments"); + (l.*func)(st.args[0].get()); + } +private: + FuncType func; +}; + +template +class LoaderFunc2: public LoaderAction +{ +public: + typedef void (L::*FuncType)(A0, A1); + + LoaderFunc2(FuncType f): func(f) { } + void execute(L &l, const Statement &st) const + { + if(st.args.size()!=2) throw TypeError("Wrong number of arguments"); + (l.*func)(st.args[0].get(), st.args[1].get()); + } +private: + FuncType func; +}; + +template +class LoaderFunc3: public LoaderAction +{ +public: + typedef void (L::*FuncType)(A0, A1, A2); + + LoaderFunc3(FuncType f): func(f) { } + void execute(L &l, const Statement &st) const + { + if(st.args.size()!=3) throw TypeError("Wrong number of arguments"); + (l.*func)(st.args[0].get(), st.args[1].get(), st.args[2].get()); + } +private: + FuncType func; +}; + +template +class LoaderFunc4: public LoaderAction +{ +public: + typedef void (L::*FuncType)(A0, A1, A2, A3); + + LoaderFunc4(FuncType f): func(f) { } + void execute(L &l, const Statement &st) const + { + if(st.args.size()!=4) throw TypeError("Wrong number of arguments"); + (l.*func)(st.args[0].get(), st.args[1].get(), st.args[2].get(), st.args[3].get()); + } +private: + FuncType func; +}; + +template +class LoadValue: public LoaderAction +{ +public: + typedef T L::ObjectType::*PointerType; + + LoadValue(PointerType p): ptr(p) { } + void execute(L &l, const Statement &st) const + { + if(st.args.size()!=1) throw TypeError("Wrong number of arguments"); + l.get_object().*ptr=st.args[0].get(); + } +private: + PointerType ptr; +}; + +template +class SubLoader0: public LoaderAction +{ +public: + typedef typename S::ObjectType &(L::*FuncType)(); + + SubLoader0(FuncType f): func(f) { } + void execute(L &l, const Statement &st) const + { + if(st.args.size()!=0) throw TypeError("Wrong number of arguments"); + typename S::ObjectType &obj=(l.*func)(); + S sl(obj); + sl.load(st); + } +private: + FuncType func; +}; + +template +class SubLoader1: public LoaderAction +{ +public: + typedef typename S::ObjectType &(L::*FuncType)(A0); + + SubLoader1(FuncType f): func(f) { } + void execute(L &l, const Statement &st) const + { + if(st.args.size()!=1) throw TypeError("Wrong number of arguments"); + typename S::ObjectType &obj=(l.*func)(st.args[0].get()); + S sl(obj); + sl.load(st); + } +private: + FuncType func; +}; + +template +class Loader +{ +public: + typedef C ObjectType; + + C &get_object() { return obj; } + void load(const Statement &st) + { + for(std::list::const_iterator i=st.sub.begin(); i!=st.sub.end(); ++i) + load_statement(*i); + } + void load(Parser &p) + { + while(p) + { + Statement st=p.parse(); + if(st.valid) + load_statement(st); + } + } + virtual ~Loader() + { + for(typename ActionMap::iterator i=actions.begin(); i!=actions.end(); ++i) + delete i->second; + } +protected: + typedef std::map *> ActionMap; + + C &obj; + + Loader(C &o): obj(o) { } + + void add(const std::string &k, void (L::*func)()) + { actions.insert(typename ActionMap::value_type(k, new LoaderFunc0(func))); } + + template + void add(const std::string &k, void (L::*func)(A0)) + { actions.insert(typename ActionMap::value_type(k, new LoaderFunc1(func))); } + + template + void add(const std::string &k, void (L::*func)(A0, A1)) + { actions.insert(typename ActionMap::value_type(k, new LoaderFunc2(func))); } + + template + void add(const std::string &k, void (L::*func)(A0, A1, A2)) + { actions.insert(typename ActionMap::value_type(k, new LoaderFunc3(func))); } + + template + void add(const std::string &k, void (L::*func)(A0, A1, A2, A3)) + { actions.insert(typename ActionMap::value_type(k, new LoaderFunc4(func))); } + + template + void add(const std::string &k, typename S::ObjectType &(L::*func)()) + { actions.insert(typename ActionMap::value_type(k, new SubLoader0(func))); } + + template + void add(const std::string &k, typename S::ObjectType &(L::*func)(A0)) + { actions.insert(typename ActionMap::value_type(k, new SubLoader1(func))); } + + template + void add(const std::string &k, T C::*p) + { actions.insert(typename ActionMap::value_type(k, new LoadValue(p))); } +private: + ActionMap actions; + + void load_statement(const Statement &st) + { + typename ActionMap::iterator j=actions.find(st.keyword); + if(j==actions.end()) + throw Exception(st.get_location()+": Unknown keyword '"+st.keyword+"'"); + j->second->execute(dynamic_cast(*this), st); + } +}; + +} // namespace Parser +} // namespace Msp + +#endif diff --git a/source/parser.cpp b/source/parser.cpp new file mode 100644 index 0000000..8707ced --- /dev/null +++ b/source/parser.cpp @@ -0,0 +1,343 @@ +/* +This file is part of libmspparser +Copyright © 2006 Mikko Rasa, Mikkosoft Productions +Distributed under the LGPL +*/ +#include +#include +#include +#include "parser.h" +#include "statement.h" +#include "token.h" + +using namespace std; + +#include + +namespace Msp { +namespace Parser { + +Parser::Parser(istream &i, const string &s): + in(i), + src(s), + good(true) +{ } + +Statement Parser::parse() +{ + if(!good) + throw Exception("Parser is not good"); + + try + { + return parse_(0); + } + catch(const Exception &e) + { + good=false; + throw; + } +} + +Statement Parser::parse_(const Token *t) +{ + Statement result; + bool sub=false; + bool finish=false; + + while(in) + { + Token token; + if(t) + { + token=*t; + t=0; + } + else + token=parse_token(); + + if(result.keyword.empty()) + { + if(token.str.empty()) + break; + else if(token.type!=Token::IDENTIFIER) + throw DataError(get_location()+format(": Syntax error at token '%S' (expected an identifier)", &token.str).str()); + result.keyword=token.str; + result.valid=true; + result.source=src; + result.line=in.get_line_number(); + } + else if(sub) + { + if(token.str=="}") + { + sub=false; + finish=true; + } + else + { + Statement ss=parse_(&token); + result.sub.push_back(ss); + } + } + else if(finish) + { + if(token.str!=";") + throw DataError(get_location()+format(": Syntax error at token '%S' (Expected a ';')", &token.str).str()); + break; + } + else if(token.str=="{") + sub=true; + else if(token.str==";") + break; + else if(token.type==Token::INTEGER) + result.args.push_back(Value(Value::INTEGER, token.str)); + else if(token.type==Token::FLOAT) + result.args.push_back(Value(Value::FLOAT, token.str)); + else if(token.type==Token::STRING) + result.args.push_back(Value(Value::STRING, token.str)); + else if(token.type==Token::IDENTIFIER) + { + //result.args.push_back(resolve_identifiertoken.str); + } + else if(token.str=="") + throw DataError(src+": Unexcepted EOF"); + else + throw DataError(get_location()+": Syntax error"); + } + + return result; +} + +Token Parser::parse_token() +{ + int c; + unsigned comment=0; + while(in) + { + c=in.get(); + int next=in.peek(); + + //cout<=ACCEPT) + return Token(token_type[state], buf); + } + + return Token(Token::SPECIAL, ""); +} + +bool Parser::is_delimiter(int c) +{ + return (isspace(c) || c=='{' || c=='}' || c==';' || c=='/'); +} + +bool Parser::isodigit(int c) +{ + return (c>='0' && c<='7'); +} + +string Parser::unescape_string(const string &str) +{ + string result; + bool escape=false; + unsigned hexcape=0; + for(string::const_iterator i=str.begin()+1; i!=str.end()-1; ++i) + { + if(escape) + { + if(*i=='n') + result+='\n'; + else if(*i=='t') + result+='\t'; + else if(*i=='\\') + result+='\\'; + else if(*i=='"') + result+='"'; + else if(*i=='x') + hexcape=0x100; + else + throw DataError("Invalid escape"); + escape=false; + } + else if(hexcape) + { + unsigned digit=0; + if(*i>='0' && *i<='9') + digit=*i-'0'; + else if(*i>='a' && *i<='f') + digit=*i-'a'+10; + else if(*i>='A' && *i<='F') + digit=*i-'A'+10; + else + throw DataError("Invalid hex digit"); + + hexcape=(hexcape<<4)|digit; + if(hexcape&0x10000) + { + result+=hexcape&0xFF; + hexcape=0; + } + } + else if(*i=='\\') + escape=true; + else + result+=*i; + } + + return result; +} + +string Parser::get_location() +{ + ostringstream ss; + ss< +#include +#include "input.h" + +namespace Msp { +namespace Parser { + +class Statement; +struct Token; + +class Parser +{ +public: + Parser(std::istream &, const std::string &); + Statement parse(); + operator bool() const { return (bool)in; } +private: + Input in; + std::string src; + bool good; + + Statement parse_(const Token *); + Token parse_token(); + bool is_delimiter(int); + bool isodigit(int); + std::string unescape_string(const std::string &); + std::string get_location(); + void parse_error(int, int); +}; + +} // namespace Parser +} // namespace Msp + +#endif diff --git a/source/statement.h b/source/statement.h new file mode 100644 index 0000000..378ddab --- /dev/null +++ b/source/statement.h @@ -0,0 +1,35 @@ +/* +This file is part of libmspparser +Copyright © 2006 Mikko Rasa, Mikkosoft Productions +Distributed under the LGPL +*/ +#ifndef MSP_PARSER_STATEMENT_H_ +#define MSP_PARSER_STATEMENT_H_ + +#include +#include +#include +#include "value.h" + +namespace Msp { +namespace Parser { + +class Statement +{ +public: + std::string keyword; + ValueArray args; + bool valid; + std::string source; + unsigned line; + std::list sub; + + Statement(): valid(false), line(0) { } + std::string get_location() const + { std::ostringstream ss; ss< +#include +#include "value.h" + +namespace Msp { +namespace Parser { + +/*template<> +unsigned Value::get() const +{ + if(type!=INTEGER) + throw TypeError("Value is not an integer"); + errno=0; + unsigned long result=strtoul(data); + if(errno==ERANGE + return result; +} + +template<> +unsigned Value::get() const +{ + if(type!=INTEGER) + throw TypeError("Value is not an integer"); + return strtoul(data); +} + +template<> +unsigned Value::get() const +{ + if(type!=INTEGER) + throw TypeError("Value is not an integer"); + return strtoul(data); +} + +template<> +float Value::get() const +{ + if(type!=FLOAT && type!=INTEGER) + throw TypeError("Value is not a float"); + return strtod(data); +}*/ + +template<> +std::string Value::get() const +{ + if(type!=STRING) + throw TypeError("Value is not a string"); + return data; +} + +template<> +const std::string &Value::get() const +{ + if(type!=STRING) + throw TypeError("Value is not a string"); + return data; +} + +} // namespace Msp +} // namespace Parser diff --git a/source/value.h b/source/value.h new file mode 100644 index 0000000..dc117e0 --- /dev/null +++ b/source/value.h @@ -0,0 +1,47 @@ +/* +This file is part of libmspparser +Copyright © 2006 Mikko Rasa, Mikkosoft Productions +Distributed under the LGPL +*/ +#ifndef MSP_PARSER_VALUE_H_ +#define MSP_PARSER_VALUE_H_ + +#include +#include +#include + +namespace Msp { +namespace Parser { + +class Value +{ +public: + enum Type + { + INTEGER, + FLOAT, + STRING, + BOOLEAN + }; + + Value(Type t, const std::string &d): type(t), data(d) { } + template + T get() const + { + std::istringstream ss(data); + T result; + ss>>result; + if(ss.fail()) + throw TypeError("Type mismatch"); + return result; + } +private: + Type type; + std::string data; +}; +typedef std::vector ValueArray; + +} // namespace Parser +} // namespace Msp + +#endif -- 2.45.2