283 lines
7.5 KiB
C++
283 lines
7.5 KiB
C++
/*
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* This file is a part of EZC -- Easy templating in C++
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@slimaczek.pl>
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*/
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/*
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* Copyright (c) 2007-2008, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name Tomasz Sowa nor the names of contributors to this
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* project may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef headerfileezc
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#define headerfileezc
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#include <string>
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#include <sstream>
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#include <fstream>
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#include <vector>
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#include <map>
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#include <cstdlib>
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#include <cstring>
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namespace Ezc
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{
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void CreateMsg(std::ostringstream & o, const char * type, const char * arg = 0);
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std::string CreateMsg(const char * type, const char * arg = 0);
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void SplitUnixDirectory(const char * name, std::string & dir, std::string & file);
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void SplitUnixDirectory(const std::string & name, std::string & dir, std::string & file);
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class Pattern
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{
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public:
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Pattern();
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void ParseFile(const std::string & file_name);
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void ParseFile(const char * file_name);
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void ParseString(const std::string & str);
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void ParseString(const char * str);
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void Directory(const char * d);
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void Directory(const std::string & d);
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struct Item
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{
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// change the name to 'Type'
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enum ItemType
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{
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item_none, item_container, item_text, item_ifany, item_ifno, item_for,
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item_else, item_end, item_err, item_normal, item_ifindex,
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item_include, item_is, item_ifone, item_comment, item_def
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};
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struct Directive
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{
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bool is_text; // if true that means a directive in quotes "static text"
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std::string name;
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};
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ItemType type;
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std::string text;
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std::vector<Item*> item_table;
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std::vector<Directive> directives;
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Item();
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Item(const Item & i);
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Item & operator=(const Item & i);
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void CopyItemTable(const Item & i);
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~Item();
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Item * AddItem(const Item * porg = 0);
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Item * AddItem(const Item & porg);
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void ClearItems();
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ItemType LastItemType();
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void DeleteLastItem();
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void Clear();
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};
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Item item_root;
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// allowing include tag
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// default: true
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bool allow_include;
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// if true all text-items which have only white characters (with new lines as well)
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// will be deleted - useful in *.txt templates
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// this not actually delete the whole item but only the string
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// the item will be present with an empty string
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// default: false
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bool delete_all_white;
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private:
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const char * itext;
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std::string directory;
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bool CheckFileName(const char * name);
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std::string ReadFile(const std::string & name);
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std::string ReadFile(const char * name);
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int ReadCharInText();
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bool IsWhite(int c);
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void SkipWhiteCharacters();
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void CheckWhiteAndDelete(std::string & s);
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Item::Directive ReadDirective();
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Item::Directive ReadString();
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Item::Directive ReadDirectiveOrString();
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void CreateTreeReadItemDirectiveCheckEnding(Item & item);
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void ReadDirectiveIfany(Item & item);
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void ReadDirectiveIfno(Item & item);
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void ReadDirectiveIfone(Item & item);
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void ReadDirectiveIs(Item & item);
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void ReadDirectiveIfindex(Item & item);
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void ReadDirectiveFor(Item & item);
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void ReadDirectiveComment(Item & item);
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void ReadDirectiveInclude(Item & item);
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void ReadDirectiveDef(Item & item);
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void CreateTreeReadItemDirective(Item & item);
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void CreateTreeReadItemText(Item & item);
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bool CreateTreeReadItem(Item & item);
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void CreateTreeReadIf(Item & item);
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void CreateTreeReadFor(Item & item);
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void CreateTree(Item & item);
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void CreateTreeReadInclude(Item & item);
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}; // Pattern
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struct Info
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{
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// this variables you can set in your function
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std::ostringstream & out;
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//std::string out_string;
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bool result;
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// in a [is function "text"] statement this is the pointer to "text" object
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// otherwise this is null pointer
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const std::string * is;
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// this is set by Generator
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// normally is 0
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// in a [for] statement it indicates the number of the current iteration (the first is 0)
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int iter;
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Info(std::ostringstream & o);
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void Clear();
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};
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// functions or variables
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class Functions
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{
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public:
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typedef void (*UserFunction)(Info &);
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enum Type { function, variable };
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struct Function
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{
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Type type;
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UserFunction user_function;
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std::string variable;
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int iter;
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bool is_for; // true if is used by a [for] statement
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bool is_running; // true if this function (if is) is currently running
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Function();
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};
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void Insert(const std::string & key, UserFunction ufunction); // inserting a function
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void Insert(const std::string & key, const char * var); // inserting a variable
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void Insert(const std::string & key, const std::string & var); // inserting a variable
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bool Find(const std::string & key, Function ** fun);
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void Clear();
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private:
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typedef std::map<std::string, Function> FunctionsTable;
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FunctionsTable functions_table;
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};
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class Generator
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{
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public:
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Generator(std::ostringstream &, Pattern & data, Functions & functions);
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void Generate();
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private:
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std::ostringstream & output_stream;
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Pattern & pattern;
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Functions & functions;
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Info info1, info2;
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int loop;
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bool Find(const std::string & key, Functions::Function ** function);
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void Call(Functions::Function * function, Info & info, const std::string * is = 0);
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bool Call(const std::string & name, Info & info, Functions::Function ** pfun = 0, const std::string * is = 0);
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void CallUserFunction(Functions::Function * function, Info & info);
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void CallVariable(Functions::Function * function, Info & info);
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void MakeTextIf_go(Pattern::Item & item, bool result);
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bool MakeTextIfindexnumber(Pattern::Item & item, Functions::Function * function, bool & result);
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void MakeTextIfany(Pattern::Item & item);
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void MakeTextIfno(Pattern::Item & item);
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void MakeTextIfone(Pattern::Item & item);
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void MakeTextIfindex(Pattern::Item & item);
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void MakeTextFor(Pattern::Item & item);
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void MakeTextContainer(Pattern::Item & item);
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void MakeTextNormal(Pattern::Item & item);
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bool MakeTextIsFunText(const std::string & fun_name, const std::string & text, bool & res);
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bool MakeTextIsFunFun(const std::string & fun_name1, const std::string & fun_name2, bool & res);
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void MakeTextIs(Pattern::Item & item);
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void MakeTextDefine(Pattern::Item & item);
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void MakeText(Pattern::Item & item);
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}; // Generator
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} // namespace Ezc
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#endif
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