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/* |
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* attributes and attribute sets |
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*/ |
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#ifndef ATTR_H |
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#define ATTR_H |
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#include <string> |
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#include <map> |
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#include "lsys.h" |
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#include "util.h" |
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#include "matrix.h" |
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using namespace std; |
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struct attribute_set : public shared<module_map> { |
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const module *operator ()(const string &attr) const t_no |
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{ const_iterator i; return (i = obj->find (attr)) == end () ? 0 : &i->second; } |
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string operator ()(const string &attr, const string &def) const t_no |
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{ const_iterator i; return (i = obj->find (attr)) == end () ? def : i->second.first ().str; } |
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double operator ()(const string &attr, double def) const t_err |
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{ const_iterator i; return (i = obj->find (attr)) == end () ? def : eval_expr (i->second); } |
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vec operator ()(const string &attr, const vec &def) const t_err; |
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const_iterator find (const string &s) const t_no { return obj->find (s); }; |
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const module &operator [](const string &s) const t_no { return (*obj)[s]; }; |
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module &operator [](const string &s) t_no { unshare (); return (*obj)[s]; }; |
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}; |
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#endif |
