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Xml_node::Unquoted utility for attribute values

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The new utility can be used to revert quoted XML attribute values.
Such quoting is needed whenever an attribute value can contain '"'
characters. E.g., in the menu_view's <label text="..."> widget.

Issue #1757
This commit is contained in:
Norman Feske 2020-01-14 23:02:24 +01:00 committed by Christian Helmuth
parent d70cf314d8
commit 567d9f7910
1 changed files with 38 additions and 0 deletions
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38
repos/base/include/util/xml_node.h
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@ -16,11 +16,13 @@
#include <base/log.h> #include <base/log.h>
#include <util/token.h> #include <util/token.h>
#include <util/noncopyable.h>
#include <base/exception.h> #include <base/exception.h>
namespace Genode { namespace Genode {
class Xml_attribute; class Xml_attribute;
class Xml_node; class Xml_node;
class Xml_unquoted;
} }
@ -276,6 +278,8 @@ class Genode::Xml_node
*/ */
class Tag; class Tag;
friend class Xml_unquoted;
public: public:
/********************* /*********************
@ -1105,4 +1109,38 @@ class Genode::Xml_node
} }
}; };
class Genode::Xml_unquoted : Noncopyable
{
private:
struct
{
char const *base;
size_t len;
} const _content_ptr;
public:
template <size_t N>
Xml_unquoted(String<N> const &string)
: _content_ptr({ string.string(), string.length() - 1})
{ }
void print(Output &out) const
{
char const *src = _content_ptr.base;
size_t len = _content_ptr.len;
while (len > 0) {
Xml_node::Decoded_character const decoded_character(src, len);
Genode::print(out, Char(decoded_character.character));
src += decoded_character.encoded_len;
len -= decoded_character.encoded_len;
}
}
};
#endif /* _INCLUDE__UTIL__XML_NODE_H_ */ #endif /* _INCLUDE__UTIL__XML_NODE_H_ */