<stránka

	xmlns="https://trac.frantovo.cz/xml-web-generator/wiki/xmlns/strana"

	xmlns:m="https://trac.frantovo.cz/xml-web-generator/wiki/xmlns/makro">

	<nadpis>Roadmap</nadpis>

	<perex>Vision of future versions</perex>

	<pořadí>14</pořadí>

	<text xmlns="http://www.w3.org/1999/xhtml">

		<p>

			Releases before v1.0.0 are development and are not intended for production use.

			Releases after v1.0.0 should follow the rules of <a href="http://semver.org/">Semantic versioning</a>.

		</p>

		<p>

			Released versions are described on the <m:a href="download">download</m:a> page.

		</p>

		<h2>v0.14, v0.15, v0.16 etc.</h2>

		<p>

			Releases for discussion and verification of the format and API design.

		</p>

		<h3>Data types</h3>

		<ul>

			<li>arrays/streams of bytes (octets)</li>

			<li>arrays of other types</li>

			<li>arrays of other types with support for NULL values</li>

			<li>nested relations</li>

			<li>date and time</li>

			<li>variable integer (probably LEB128 or similar)</li>

			<li>decimal numbers</li>

			<li>support NULL values (introduce bitmaps)</li>

			<li>support long strings (chunked, similar to octet streams)</li>

			<li>fixed size integers</li>

			<li>precise BigDecimal</li>

			<li>fractions</li>

			<li>string in UTF-16</li>

			<li>string in ASCII</li>

			<li>string in ISO 8859-1</li>

			<li>string in ISO 8859-2</li>

		</ul>

		<h3>Inputs</h3>

		<p>Probably no new ones before v1.0.0.</p>

		<h3>Transformations</h3>

		<p>Probably no new ones before v1.0.0.</p>

		<h3>Outputs</h3>

		<p>Probably no new ones before v1.0.0.</p>

		<h3>Other tasks</h3>

		<ul>

			<li>pkg-config: version numbers, debug vs. release</li>

			<li>automated complex tests (specification vs. implementation compliance)</li>

			<li>verify the format from the performance point of view</li>

			<li>packaging for Guix SD and .deb and .rpm distributions, Snapcraft, Flatpak etc.</li>

		</ul>

		<h2>v1.0</h2>

		<p>

			First version for production use. 

			Brings no new features, just stabilized result of previous development.

			Stable must be:

		</p>

		<ul>

			<li>format specification</li>

			<li>relpipe-lib-writer</li>

			<li>relpipe-lib-reader</li>

			<li>relpipe-in-cli</li>

			<li>relpipe-out-tabular</li>

			<li>relpipe-in-xml</li>

			<li>relpipe-out-xml</li>

			<li>relpipe-in-csv</li>

			<li>relpipe-out-csv</li>

			<li>relpipe-out-ods</li>

		</ul>

		<p>

			Other parts might be released as stable later.

		</p>

		<p>

			After this point, all components (the format specification, particular libraries and particular tools) 

			will be versioned independently and the compatibility matrix will be maintained.

		</p>

		<h2>Further versions</h2>

		<p>

			Plans for next decades:

		</p>

		<h3>Data types</h3>

		<ul>

			<li>intervals of various types</li>

			<li>IPv4 address and subnet</li>

			<li>IPv6 address and subnet</li>

			<li>UUID</li>

			<li>e-mail</li>

			<li>URL / URI</li>

			<li>geographic locations</li>

			<li>OID: Object identifier</li>

		</ul>

		<h3>Inputs</h3>

		<p>Systems, commands:</p>

		<ul>

			<li>network information: ip, iptables, netstat, ss, dhcp-lease-list</li>

			<li>network interaction: ping, host, wget, curl</li>

			<li>system information: ps, lsof</li>

			<li>versioning systems (Mercurial, Git, Subversion, Monotone, Bazaar)</li>

			<li>D-Bus</li>

		</ul>

		<p>Formats:</p>

		<ul>

			<li>regular expression (regex groups → attributes)</li>

			<li>ODS (LibreOffice)</li>

			<li>iCalendar</li>

			<li>vCard</li>

			<li>YAML, JSON, INI</li>

			<li>Fsdb</li>

			<li>Java .properties</li>

			<li>Gettext / .po files</li>

			<li>STDIO log: captured STDIN, STDOUT and STDERR of other process with precise timing of all events</li>

			<li>pcap / tcpdump</li>

			<li>Inverse tabular</li>

			<li>Wikipedia / MediaWiki: harvest tables from given article</li>

			<li>(X)HTML tables generic import (probably implemented in XQuery)</li>

		</ul>

		<h3>Transformations</h3>

		<ul>

			<li>iconv: character encoding converter</li>

			<li>rename: relations, attributes</li>

			<li>filter/skip: relations, attributes</li>

			<li>add constant attribute</li>

			<li>WHERE-like filter</li>

			<li>JOIN</li>

			<li>ORDER BY</li>

			<li>UNION, UNION ALL, explicit or implicit (relation interleaving)</li>

			<li>split single relation into multiple relations according to an attribute value</li>

			<li>union multiple relations and add an attribute with original relation name</li>

			<li>XPath, XSLT, XQuery</li>

			<li>statistics: compute/add aggregated values like min(), max(), avg(), sum() or percentiles</li>

			<li>function calls (probably should be part od SQL or XPath)</li>

			<li>pack and unpack: single record with arrays vs. multiple records with scalars</li>

			<li>Lua, Perl, Python</li>

			<li>system command executor</li>

		</ul>

		<h3>Outputs</h3>

		<ul>

			<li>GUI in GTK</li>

			<li>(La)TeX</li>

			<li>XML tree</li>

			<li>iCalendar</li>

			<li>vCard</li>

			<li>tar: directories and files <!--relations and records = directories; attribute values = files--></li>

			<li>YAML, JSON, INI</li>

			<li>Fsdb</li>

			<li>Java .properties</li>

			<li>Gettext / .po files</li>

			<li>XHTML: tables, graphs (probably implemented in XSLT or XQuery)</li>

			<li>GraphViz: .dot files</li>

			<li>SQL: CREATE TABLE, INSERT</li>

			<li>SMTP, IMAP, files, HTTP, SOAP, ZeroMQ, TCP, UDP</li>

			<li>D-Bus</li>

			<li>source code / literals in Java, C, C++, Bash</li>

			<li>return/exit code (single numeric value)</li>

		</ul>

		<h3>Libraries and tools</h3>

		<p>Readers (SAX-like parsers) and writers (generators) for:</p>

		<ul>

			<li>C++</li>

			<li>C</li>

			<li>Java</li>

			<li>Python</li>

			<li>Perl</li>

			<li>Rust</li>

			<li>Go</li>

			<li>PHP</li>

		</ul>

		<p>Other libraries and tools:</p>

		<ul>

			<li>ORM API: mapping between classes/objects and relations/records</li>

			<li>schemas (XSD-like)</li>

			<li>generators, compilers, validators, comparators</li>

			<li>transformer helpers</li>

			<li>Ragel input helpers</li>

			<li>PEG input helpers</li>

			<li>repair tools (for corrupted data)</li>

			<li>pull parsers</li>

			<li>SAX and DOM parsers (read relational data like it was XML)</li>

			<li>visual editor for pipeline design</li>

		</ul>

	</text>

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