Hello, Boris. I took a look at the API guide and here are my thoughts.
Compatibility of the low-level parser with range-based for loop and
semi-automatic type conversion are nice features, but:
1) your words about libstudxml being free from external dependencies
contradict with the fact that actual parsing is done by Expat. Packaging
two libraries together doesn't make Expat "internal" dependency;
2) looks like the high-level parser will blow up, throwing an exception,
if the input doesn't completely satisfies all of the application's
expectations. Making so strict requirements to the order of child
elements is a questionable idea IMHO (unless they [can] contain
references to each other, of course).
On 05/21/2014 06:48 PM, Boris Kolpackov wrote:
> Hi,
>
> libstudxml is an XML library for modern, standard C++. It has an API
> that I believe should have already been in Boost or even in the C++
> standard library.
>
> The API was first presented at the C++Now 2014 conference. Based on
> the positive feedback and encouragement I received during the talk,
> I've decided to make the implementation generally available.
>
> As an example, we can parse this XML:
>
> <person id="123">
> <name>John Doe</name>
> <age>23</age>
> <gender>male</gender>
> </person>
>
> With the following C++ code, which performs all the validation
> necessary for this XML vocabulary:
>
> enum class gender {...};
>
> ifstream ifs (argv[1]);
> parser p (ifs, argv[1]);
>
> p.next_expect (parser::start_element, "person", content::complex);
>
> long id = p.attribute<long> ("id");
>
> string n = p.element ("name");
> short a = p.element<short> ("age");
> gender g = p.element<gender> ("gender");
>
> p.next_expect (parser::end_element); // person
>
> The API has the following interesting features:
>
> * Streaming pull parser and streaming serializer
> * Two-level API: minimum overhead low-level & more convenient high-level
> * Content model-aware (empty, simple, complex, mixed)
> * Whitespace processing based on content model
> * Validation based on content model
> * Validation of missing/extra attributes
> * Validation of unexpected events (elements, etc)
> * Data extraction to value types
> * Attribute map with extended lifetime (high-level API)
>
> libstudxml is compact, external dependency-free, and reasonably
> efficient. The XML parser is a conforming, non-validating XML 1.0
> implementation that is based on tested and proven code. The library
> is released under the MIT license.
>
> More information, documentation, and source code are available from:
>
> http://www.codesynthesis.com/projects/libstudxml/
>
> Or, you can jump directly to the API description with examples:
>
> http://www.codesynthesis.com/projects/libstudxml/doc/intro.xhtml#2
>
> Enjoy,
> Boris
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