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OpenSP - Features Summary
SP
A free, object-oriented toolkit for SGML parsing and entity management
Features summary
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Includes onsgmls
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Compatible with sgmls
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Also generates RAST (ISO/IEC 13673)
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Provides access to all information about SGML document
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Access to DTD and SGML declaration as well as document instance
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Access to markup as well as abstract document
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Sufficient to recreate character-for-character identical
copy of any SGML document
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Supports almost all optional SGML features
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Arbitrary concrete syntaxes
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SHORTTAG, OMITTAG, RANK
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SUBDOC
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LINK (SIMPLE, IMPLICIT and EXPLICIT)
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Only DATATAG not supported
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Sophisticated entity manager
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Supports ISO/IEC 10744 Formal System Identifiers
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Supports SGML Open catalogs
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Supports WWW
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Can be used independently of parser
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Supports multi-byte character sets
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Parser can use 32-bit characters internally
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32-bit characters can be used in tag names and other markup
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Supports ISO/IEC 10646 (Unicode) using UTF-8, UTF-16 and UTF-32
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Supports Japanese character sets (Shift-JIS, EUC)
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Object-oriented
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Written in C++ from scratch
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Not a modified version of a parser originally written in C
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Reentrant
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Sophisticated architecture
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Fast
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Up to twice as fast as sgmls on large documents
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Portable
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All major Unix variants
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MS-DOS
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Win32: Windows 95/Windows NT
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OS/2
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Production quality
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Version 1.0 recently released, after a year of test releases
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Tested using several SGML test suites
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Already used in several new commercial products
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Written by James Clark, previously responsible for turning arcsgml into sgmls
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Free
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Includes source code
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No restrictions on commercial use
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Disadvantages
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Programmer-level documentation only for generic API
and not for native API.
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