compiler2/ttcn3/PatternString.hh

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Copyright (c) 2000-2015 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 #ifndef _Ttcn_PatternString_HH
   9 #define _Ttcn_PatternString_HH
  10
  11 #include "../vector.hh"
  12 #include "../Setting.hh"
  13 #include "AST_ttcn3.hh"
  14
  15 #include "../Value.hh"
  16
  17 namespace Ttcn {
  18
  19   class Module;
  20   using namespace Common;
  21
  22   /**
  23    * The instances of this class can represent a TTCN pattern
  24    * string. It can built up from different kinds of elements:
  25    * "regular" RE-elements and "reference" elements ({reference} and
  26    * \\N{reference}).
  27    */
  28   class PatternString : public Node {
  29   public:
  30     enum pstr_type_t {
  31       CSTR_PATTERN,
  32       USTR_PATTERN
  33     };
  34   private:
  35     Scope *my_scope;
  36     struct ps_elem_t;
  37     vector<ps_elem_t> elems;
  38     PatternString(const PatternString& p);
  39     /** returns the last element if it contains a regular string or NULL
  40      * otherwise */
  41     ps_elem_t *get_last_elem() const;
  42
  43     Value* cstr_value;
  44
  45     pstr_type_t pattern_type;
  46
  47   public:
  48     PatternString(): Node(), my_scope(0), cstr_value(0),
  49       pattern_type(CSTR_PATTERN) { }
  50     virtual ~PatternString();
  51     virtual PatternString* clone() const;
  52     virtual void set_fullname(const string& p_fullname);
  53     virtual void set_my_scope(Scope *p_scope);
  54     void set_code_section(GovernedSimple::code_section_t p_code_section);
  55     void addChar(char c);
  56     void addString(const char *p_str);
  57     void addString(const string& p_str);
  58     void addRef(Ttcn::Reference *p_ref);
  59     void addRefdCharSet(Ttcn::Reference *p_ref);
  60     string get_full_str() const;
  61
  62     void set_pattern_type(pstr_type_t p_type);
  63     pstr_type_t get_pattern_type() const;
  64
  65     /** Returns whether the pattern contains embedded references */
  66     bool has_refs() const;
  67     /** Checks the embedded referenced values */
  68     void chk_refs(Type::expected_value_t expected_value=Type::EXPECTED_DYNAMIC_VALUE);
  69     void chk_recursions(ReferenceChain& refch);
  70     /** Checks the pattern by translating it to POSIX regexp */
  71     void chk_pattern();
  72     bool chk_self_ref(Common::Assignment *lhs);
  73     /** Joins adjacent string components into one for more efficient code
  74      * generation. */
  75     void join_strings();
  76     /** Temporary hack... */
  77     string create_charstring_literals(Common::Module *p_mod);
  78     virtual void dump(unsigned level) const;
  79
  80     /** Called by Value::get_value_refd_last() */
  81     Value* get_value();
  82
  83     /** Converts this string pattern into a JSON schema string pattern. */
  84     char* convert_to_json();
  85   };
  86
  87 } // namespace Ttcn
  88
  89 #endif // _Ttcn_PatternString_HH