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https://github.com/jezhiggins/arabica
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77 lines
2.3 KiB
C++
Executable file
77 lines
2.3 KiB
C++
Executable file
#ifndef ARABICA_XML_STRINGS_HPP
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#define ARABICA_XML_STRINGS_HPP
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#include <XML/XMLCharacterClasses.hpp>
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#include <text/UnicodeCharacters.hpp>
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// QName
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//[7] QName ::= PrefixedName | UnprefixedName
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//[8] PrefixedName ::= Prefix ':' LocalPart
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//[9] UnprefixedName ::= LocalPart
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//[10] Prefix ::= NCName
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//[11] LocalPart ::= NCName
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// NCName
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// [4] NCName ::= NCNameStartChar NCNameChar* //An XML Name, minus the ":"
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// [5] NCNameChar ::= NameChar - ':'
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// [6] NCNameStartChar ::= Letter | '_' } // namespace XML
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namespace Arabica
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{
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namespace XML
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{
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template<typename string_adaptor>
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inline bool is_ncname(const typename string_adaptor::const_iterator& b,
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const typename string_adaptor::const_iterator& e)
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{
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using namespace Arabica::text;
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typedef typename string_adaptor::const_iterator const_iterator;
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typedef typename string_adaptor::value_type value_type;
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if(b == e)
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return false; // zero length
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const_iterator s = b;
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if(!(is_letter(*s) || (*s == Unicode<value_type>::LOW_LINE)))
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return false;
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++s;
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for( ; s != e; ++s)
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{
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value_type c = *s;
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if(!is_ncname_char(c))
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return false;
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}
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return true;
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} // is_ncname
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template<typename string_adaptor>
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inline bool is_ncname(const typename string_adaptor::string_type& str)
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{
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return is_ncname<string_adaptor>(string_adaptor::begin(str),
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string_adaptor::end(str));
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} // is_ncname
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template<typename string_adaptor>
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inline bool is_qname(const typename string_adaptor::string_type& str)
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{
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using namespace Arabica::text;
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typedef typename string_adaptor::const_iterator const_iterator;
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typedef typename string_adaptor::value_type value_type;
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size_t colon_index = string_adaptor::find(str, Unicode<value_type>::COLON);
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if(colon_index == string_adaptor::npos())
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return is_ncname<string_adaptor>(str);
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const_iterator b = string_adaptor::begin(str);
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const_iterator e = string_adaptor::end(str);
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return is_ncname<string_adaptor>(b, b+colon_index) &&
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is_ncname<string_adaptor>(b+(colon_index+1), e);
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} // is_qname
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} // namespace XML
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} // namespace Arabica
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#endif
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