copied: parser.h -> patternparser.h

git-svn-id: svn://ttmath.org/publicrep/ezc/trunk@967 e52654a7-88a9-db11-a3e9-0013d4bc506e

src/patternparser.h

@@ -0,0 +1,262 @@
+/*
+ * This file is a part of EZC -- Easy templating in C++
+ * and is distributed under the (new) BSD licence.
+ * Author: Tomasz Sowa <t.sowa@ttmath.org>
+ */
+
+/* 
+ * Copyright (c) 2007-2014, Tomasz Sowa
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * 
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *    
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *    
+ *  * Neither the name Tomasz Sowa nor the names of contributors to this
+ *    project may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#ifndef headerfile_ezc_pattern
+#define headerfile_ezc_pattern
+
+#include <string>
+#include "item.h"
+#include "functions.h"
+#include "stringconv.h"
+#include "utf8/utf8.h"
+
+#ifdef EZC_USE_WINIX_LOGGER
+#include "core/log.h"
+#endif
+
+
+namespace Ezc
+{
+
+
+class Pattern
+{
+public:
+
+	Pattern();
+
+	/*!
+		clearing only the tree
+	*/
+	void Clear();
+
+
+	// first we're trying to read a file from directory dir
+	// if there is no such a file there then we try read from dir2
+	// (the second dir2 can be empty - it will not be used)
+	void Directory(const char * dir, const char * dir2 = 0);
+	void Directory(const std::string & dir);
+	void Directory(const std::string & dir, const std::string & dir2);
+
+	void Directory(const wchar_t * dir, const wchar_t * dir2 = 0);
+	void Directory(const std::wstring & dir);
+	void Directory(const std::wstring & dir, const std::wstring & dir2);
+
+	void ParseFile(const char * file_name);
+	void ParseFile(const std::string & file_name);
+
+	void ParseFile(const wchar_t * file_name);
+	void ParseFile(const std::wstring & file_name);
+
+
+	void ParseString(const char * str);
+	void ParseString(const std::string & str);
+	void ParseString(const wchar_t * str);
+	void ParseString(const std::wstring & str);
+
+	void AllowInclude(bool allow);
+	void DeleteWhiteTextItems(bool del);
+	void SetIncludeMax(int include_max);
+
+	// files and strings (only char* and std::string) are treated 
+	// as UTF-8
+	void UTF8(bool utf8);
+
+	void SetCommentary(const char * com_start, const char * com_stop);
+	void SetCommentary(const std::string & com_start, const std::string & com_stop);
+	void SetCommentary(const wchar_t * com_start, const wchar_t * com_stop);
+	void SetCommentary(const std::wstring & com_start, const std::wstring & com_stop);
+	
+	void CreateMsg(std::wstring & out, const wchar_t * type, const wchar_t * arg = 0);
+	static bool IsWhite(wchar_t c);
+
+	Item item_root;
+
+	template<class StreamType>
+	void CacheFunctions(Functions<StreamType> & fun)
+	{
+		CacheFunctions(item_root, fun);
+	}
+
+	void ClearCache();
+
+private:
+
+	// the main pointer to the parsed text
+	const wchar_t * itext;
+
+
+	// allowing include tag
+	// default: true
+	bool allow_include;
+
+	// if true all text-items which have only white characters (with new lines as well)
+	// will be deleted - useful in *.txt templates
+	// this not actually delete the whole item but only the string
+	// the item will be present with an empty string
+	// default: false
+	bool delete_white_text_items;
+
+	// first we're trying to read a file from 'directory'
+	// if there is no such a file there then we try read from 'directory2'
+	// we read from these directories only if they are not empty
+	std::wstring directory, directory2;
+
+	
+	bool input_as_utf8;
+
+	int include_level, include_level_max;
+
+
+
+	std::wstring commentary_start, commentary_stop;
+
+
+	// temporary content for ParseString(const char*) method
+	std::wstring string_content;
+	
+	// temporary object for a file name
+	std::wstring file_name;
+
+	// temporary object for a file name
+	std::string afile_name;
+
+	// temporary object for a EZC function's parameter
+	std::wstring temp_param;
+
+	// temporary object for a EZC function
+	Item::Function temp_function;
+
+
+
+	void ReadFile(const std::wstring & name, std::wstring & result);
+	void ReadFile(const wchar_t * name, std::wstring & result);
+	bool HasFileAtBeginning(const wchar_t * path, const wchar_t * file);
+	bool IsFileCorrect(const wchar_t * name);
+	bool ReadFileFromDir(const std::wstring & dir, const wchar_t * name, std::wstring & result);
+	void ReadFile(std::ifstream & file, std::wstring & result);
+	void ReadFileContent(std::ifstream & file, std::wstring & result);
+
+	int  ReadCharInText();
+	void SkipWhite();
+	void CheckWhiteAndDelete(std::wstring & s);
+	
+	bool IsNameChar(wchar_t c);
+	bool IsDigit(wchar_t c);
+	bool IsPositiveNumber(const std::wstring & str);
+
+	bool ReadName(std::wstring & name);
+	bool ReadString(std::wstring & str);
+	bool ReadParams(Item::Function & function);
+	bool ReadFunction(Item::Function & function);
+	bool ReadFunctions(Item & item);
+
+	void ReadDirectiveIf(Item & item);
+	void ReadDirectiveIfno(Item & item);
+	void ReadDirectiveIfany(Item & item);
+	void ReadDirectiveIfone(Item & item);
+	void ReadDirectiveIfanyno(Item & item);
+	void ReadDirectiveIfoneno(Item & item);
+	void ReadDirectiveIs(Item & item);
+	void ReadDirectiveIsno(Item & item);
+	void ReadDirectiveIfindex(Item & item);
+	void ReadDirectiveFor(Item & item);
+	void ReadDirectiveComment(Item & item);
+	void ReadDirectiveInclude(Item & item);
+	void ReadDirectiveDef(Item & item);
+	void ReadDirectiveFilter(Item & item);
+	void ReadDirectiveEzc(Item & item);
+	void ReadDirectiveNormal(const std::wstring & name, Item & item);
+
+	void CreateTreeReadItemDirectiveCheckEnding(Item & item);
+	void CreateTreeReadItemDirective(Item & item);
+	void CreateTreeReadItemText(Item & item);
+	bool CreateTreeReadItem(Item & item);
+	void CreateTreeReadIf(Item & item);
+	void CreateTreeReadFor(Item & item);
+	void CreateTree(Item & item);
+	void CreateTreeReadInclude(Item & item);
+	void CreateTreeReadIncludeSkipAllowFlag(Item & item);
+
+
+	template<class StreamType>
+	void CacheFunctions(Item & item, Functions<StreamType> & fun)
+	{
+		typename Functions<StreamType>::Function * ezc_fun;
+
+		// one exception (if_index is putting its argument on the functions stack)
+		if( item.type != Item::item_ifindex )
+		{
+			for(size_t f=0; f < item.functions.size() ; ++f)
+			{
+				if( fun.Find(item.functions[f].name, &ezc_fun) )
+				{
+					item.functions[f].fun_cache = ezc_fun;
+				}
+				else
+				{
+					item.functions[f].fun_cache = 0;
+
+					#ifdef EZC_USE_WINIX_LOGGER
+					Winix::log << Winix::log1 << "Ezc: unknown function: " << item.functions[f].name << Winix::logend;
+					#endif
+				}
+			}
+		}
+
+		for(size_t i=0; i < item.item_tab.size() ; ++i)
+			CacheFunctions(*item.item_tab[i], fun);
+	}
+
+
+	void ClearCache(Item & item);
+
+}; // class Pattern
+
+
+
+
+
+
+
+
+
+} // namespace Ezc
+
+
+#endif