compiler2/ttcn3/PatternString.hh

   1 /******************************************************************************
   2  * Copyright (c) 2000-2016 Ericsson Telecom AB
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *   Balasko, Jeno
  10  *   Baranyi, Botond
  11  *   Delic, Adam
  12  *   Forstner, Matyas
  13  *   Raduly, Csaba
  14  *   Szabo, Janos Zoltan – initial implementation
  15  *   Zalanyi, Balazs Andor
  16  *
  17  ******************************************************************************/
  18 #ifndef _Ttcn_PatternString_HH
  19 #define _Ttcn_PatternString_HH
  20
  21 #include "../vector.hh"
  22 #include "../Setting.hh"
  23 #include "AST_ttcn3.hh"
  24
  25 #include "../Value.hh"
  26
  27 namespace Ttcn {
  28
  29   class Module;
  30   using namespace Common;
  31
  32   /**
  33    * The instances of this class can represent a TTCN pattern
  34    * string. It can built up from different kinds of elements:
  35    * "regular" RE-elements and "reference" elements ({reference} and
  36    * \\N{reference}).
  37    */
  38   class PatternString : public Node {
  39   public:
  40     enum pstr_type_t {
  41       CSTR_PATTERN,
  42       USTR_PATTERN
  43     };
  44   private:
  45     Scope *my_scope;
  46     struct ps_elem_t;
  47     vector<ps_elem_t> elems;
  48     PatternString(const PatternString& p);
  49     /** returns the last element if it contains a regular string or NULL
  50      * otherwise */
  51     ps_elem_t *get_last_elem() const;
  52
  53     Value* cstr_value;
  54
  55     pstr_type_t pattern_type;
  56
  57   public:
  58     PatternString(): Node(), my_scope(0), cstr_value(0),
  59       pattern_type(CSTR_PATTERN) { }
  60     virtual ~PatternString();
  61     virtual PatternString* clone() const;
  62     virtual void set_fullname(const string& p_fullname);
  63     virtual void set_my_scope(Scope *p_scope);
  64     void set_code_section(GovernedSimple::code_section_t p_code_section);
  65     void addChar(char c);
  66     void addString(const char *p_str);
  67     void addString(const string& p_str);
  68     void addRef(Ttcn::Reference *p_ref);
  69     void addRefdCharSet(Ttcn::Reference *p_ref);
  70     string get_full_str() const;
  71
  72     void set_pattern_type(pstr_type_t p_type);
  73     pstr_type_t get_pattern_type() const;
  74
  75     /** Returns whether the pattern contains embedded references */
  76     bool has_refs() const;
  77     /** Checks the embedded referenced values */
  78     void chk_refs(Type::expected_value_t expected_value=Type::EXPECTED_DYNAMIC_VALUE);
  79     void chk_recursions(ReferenceChain& refch);
  80     /** Checks the pattern by translating it to POSIX regexp */
  81     void chk_pattern();
  82     bool chk_self_ref(Common::Assignment *lhs);
  83     /** Joins adjacent string components into one for more efficient code
  84      * generation. */
  85     void join_strings();
  86     /** Temporary hack... */
  87     string create_charstring_literals(Common::Module *p_mod);
  88     virtual void dump(unsigned level) const;
  89
  90     /** Called by Value::get_value_refd_last() */
  91     Value* get_value();
  92
  93     /** Converts this string pattern into a JSON schema string pattern. */
  94     char* convert_to_json();
  95   };
  96
  97 } // namespace Ttcn
  98
  99 #endif // _Ttcn_PatternString_HH