changed: a function can have a postfix now e.g. [my_function:my_postfix]
this will be mainly used in conjuction with [for ...] statements [for my_function:xxx] [for my_function] [my_function_value] [my_function_valu:xxx] (references the first loop) [end] [end] added: to FunInfo<>: a reference to current item from a pattern (const Item & item) similary on the stack is added a pointer to an item by having this reference you can compare a function's name and its postfix added methods: Stack * FindLastFor(const std::wstring & name); Stack * FindLastFor(const std::wstring & name, const std::wstring & postfix); template<class FunUserObject> FunUserObject * FindUserObject(const std::wstring & function_name, Stack ** ezc_stack = 0); git-svn-id: svn://ttmath.org/publicrep/ezc/trunk@1038 e52654a7-88a9-db11-a3e9-0013d4bc506e
This commit is contained in:
parent
18696d412b
commit
363605bde5
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@ -1,4 +1,4 @@
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Copyright (c) 2007-2015, Tomasz Sowa
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Copyright (c) 2007-2016, Tomasz Sowa
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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@ -40,6 +40,7 @@
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#define headerfile_ezc_funinfo
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#include <vector>
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#include "item.h"
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@ -94,8 +95,8 @@ struct Stack
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FunData * fun_data;
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bool auto_remove;
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bool is_for;
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const Item * item;
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std::wstring * for_name; // !! IMPROVE ME give a better name
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Stack()
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{
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@ -111,12 +112,6 @@ struct Stack
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delete fun_data;
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fun_data = 0;
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}
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if( for_name )
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{
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delete for_name;
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for_name = 0;
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}
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}
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}
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@ -124,9 +119,9 @@ struct Stack
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{
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iter = 0;
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fun_data = 0;
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for_name = 0;
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auto_remove = true;
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is_for = false;
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item = 0;
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}
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};
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@ -187,13 +182,18 @@ struct FunInfo
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// for other statements than [for] this is always zero
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size_t iter;
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//
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const Item & item;
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// arguments: output_stream, table_of_parameters, the_first_parameter
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FunInfo(StreamType & o,
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std::vector<Var> & pars,
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const std::wstring & first_par,
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const StreamType & input_stream,
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Stack & s) : out(o), params(pars), par(first_par), in(input_stream), stack(s)
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Stack & s,
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const Item & item_) : out(o), params(pars), par(first_par), in(input_stream), stack(s), item(item_)
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{
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Clear();
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}
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@ -222,32 +222,56 @@ struct FunInfo
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{
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for(size_t i = stack_index ; i > 0 ; --i)
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{
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if( stack_tab[i-1].for_name && *stack_tab[i-1].for_name == name )
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if( stack_tab[i-1].is_for && stack_tab[i-1].item->has_function )
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{
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if( stack_tab[i-1].item->function.name == name )
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{
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return &stack_tab[i-1];
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}
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}
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}
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return 0;
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}
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Stack * FindLastFor()
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Stack * FindLastFor(const std::wstring & name, const std::wstring & postfix)
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{
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if( !params.empty() )
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return FindLastFor(params[0].str); // or last item?
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for(size_t i = stack_index ; i > 0 ; --i)
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{
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if( stack_tab[i-1].is_for && stack_tab[i-1].item->has_function )
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{
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if( stack_tab[i-1].item->function.name == name && stack_tab[i-1].item->function.postfix == postfix )
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{
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return &stack_tab[i-1];
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}
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}
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}
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return 0;
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}
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Stack * FindLastFor(const std::wstring & first_name, const std::wstring & second_name)
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template<class FunUserObject>
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FunUserObject * FindUserObject(const std::wstring & function_name, Stack ** ezc_stack = 0)
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{
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if( !first_name.empty() )
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return FindLastFor(first_name);
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Stack * stack;
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if( item.has_function && item.function.is_function )
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stack = FindLastFor(function_name, item.function.postfix);
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else
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if( !second_name.empty() )
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return FindLastFor(second_name);
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stack = FindLastFor(function_name);
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if( ezc_stack )
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*ezc_stack = stack;
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if( stack && stack->fun_data )
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return dynamic_cast<FunUserObject*>(stack->fun_data);
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return 0;
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}
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};
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@ -963,12 +963,12 @@ void Generator<StreamType>::CallFunction(typename Functions<StreamType>::UserFun
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{
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if( parameters.empty() )
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{
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FunInfo<StreamType> info(out_stream, parameters, empty, in_stream, stack_tab[stack_index-1]);
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FunInfo<StreamType> info(out_stream, parameters, empty, in_stream, stack_tab[stack_index-1], *stack_tab[stack_index-1].item);
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CallFunction(function, info);
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}
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else
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{
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FunInfo<StreamType> info(out_stream, parameters, parameters[0].str, in_stream, stack_tab[stack_index-1]);
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FunInfo<StreamType> info(out_stream, parameters, parameters[0].str, in_stream, stack_tab[stack_index-1], *stack_tab[stack_index-1].item);
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CallFunction(function, info);
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}
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}
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@ -1008,12 +1008,12 @@ void Generator<StreamType>::CallObject(BaseObj<StreamType> * base_obj,
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{
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if( parameters.empty() )
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{
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FunInfo<StreamType> info(out_stream, parameters, empty, in_stream, stack_tab[stack_index-1]);
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FunInfo<StreamType> info(out_stream, parameters, empty, in_stream, stack_tab[stack_index-1], *stack_tab[stack_index-1].item);
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CallObject(base_obj, method_index, info);
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}
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else
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{
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FunInfo<StreamType> info(out_stream, parameters, parameters[0].str, in_stream, stack_tab[stack_index-1]);
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FunInfo<StreamType> info(out_stream, parameters, parameters[0].str, in_stream, stack_tab[stack_index-1], *stack_tab[stack_index-1].item);
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CallObject(base_obj, method_index, info);
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}
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}
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@ -1734,6 +1734,7 @@ void Generator<StreamType>::MakeText(Item & item)
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is_generating_filter = false;
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stack_tab[stack_index-1].Clear();
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stack_tab[stack_index-1].item = &item;
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if ( item.type == Item::item_text ) MakeItemText(item);
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else if( item.type == Item::item_container )MakeTextContainer(item);
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@ -5,7 +5,7 @@
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*/
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/*
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* Copyright (c) 2007-2015, Tomasz Sowa
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* Copyright (c) 2007-2016, 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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@ -63,6 +63,8 @@ struct Item
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{
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bool is_function; // if true then we have a function parameter, if false then we have a string parameter
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std::wstring name; // a function or parameter name
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std::wstring postfix; // a function can have an additional postfix in its name
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// e.g. [my_function:my_postfix]
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std::vector<Function*> parameters; // if is_function is true then it is a function and can have 'parameters'
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// if is_functino is empty then 'parameters' is empty too
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void * fun_cache; // only valid if is_function is true
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parameters.clear();
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name.clear();
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postfix.clear();
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fun_cache = 0;
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item_block = 0;
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base_obj = 0;
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@ -5,7 +5,7 @@
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*/
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/*
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* Copyright (c) 2007-2015, Tomasz Sowa
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* Copyright (c) 2007-2016, 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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@ -499,7 +499,6 @@ return true;
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bool PatternParser::ReadName(std::wstring & name)
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{
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name.clear();
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SkipWhite();
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while( IsNameChar(*itext) )
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{
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/*
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returns true if it correctly reads all parameters
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*/
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bool PatternParser::ReadFunction(Item::Function & function, bool with_params)
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bool PatternParser::ReadFunction(Item::Function & function, bool with_params, const std::wstring * function_name)
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{
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SkipWhite();
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function.Clear();
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function.is_function = true;
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if( function_name )
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{
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function.name = *function_name;
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}
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else
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if( !ReadName(function.name) )
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return false;
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if( *itext == ':' )
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{
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itext += 1;
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ReadName(function.postfix); // we allow the postfix to be empty
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}
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CheckFunctionIsNumber(function);
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if( with_params )
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item.type = Item::item_function;
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item.has_function = true;
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item.function.Clear();
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item.function.name = name;
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item.function.is_function = true;
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CheckFunctionIsNumber(item.function);
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if( !ReadParams(item.function) )
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if( !ReadFunction(item.function, true, &name) )
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{
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item.type = Item::item_err;
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item.function.Clear();
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std::wstring name;
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++itext;
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SkipWhite();
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ReadName(name);
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if ( name == L"if" ) ReadDirectiveIf(item);
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@ -5,7 +5,7 @@
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*/
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/*
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* Copyright (c) 2007-2015, Tomasz Sowa
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* Copyright (c) 2007-2016, 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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@ -152,11 +152,12 @@ private:
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bool IsPositiveNumber(const std::wstring & str);
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bool ReadName(std::wstring & name);
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bool ReadFunctionName(std::wstring & name, std::wstring & postfix);
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bool ReadString(std::wstring & str);
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bool ReadNestedFunction(Item::Function & function);
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bool ReadParamString(Item::Function & function);
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bool ReadParams(Item::Function & function);
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bool ReadFunction(Item::Function & function, bool with_params);
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bool ReadFunction(Item::Function & function, bool with_params, const std::wstring * function_name = 0);
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bool ReadFunction(Item & item);
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void ReadDirectiveIf(Item & item);
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