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<?xml version="1.0" encoding="iso-8859-1" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta name="generator" content="Docutils 0.4.1: http://docutils.sourceforge.net/" />
<title></title>
<meta name="author" content="a Pygments author|contributor; Felix Wiemann; Guenter Milde" />
<meta name="date" content="2007-06-08" />
<meta name="copyright" content="This module has been placed in the public domain." />
<link rel="stylesheet" href="../../../../lib/python2.4/site-packages/docutils/writers/html4css1/html4css1.css" type="text/css" />
</head>
<body>
<div class="document">
<table class="docinfo" frame="void" rules="none">
<col class="docinfo-name" />
<col class="docinfo-content" />
<tbody valign="top">
<tr><th class="docinfo-name">Author:</th>
<td>a Pygments author|contributor; Felix Wiemann; Guenter Milde</td></tr>
<tr><th class="docinfo-name">Date:</th>
<td>2007-06-08</td></tr>
<tr><th class="docinfo-name">Copyright:</th>
<td>This module has been placed in the public domain.</td></tr>
</tbody>
</table>
<!-- #!/usr/bin/python -->
<p>This is a merge of <a class="reference" href="http://pygments.org/docs/rstdirective/">Using Pygments in ReST documents</a> from the <a class="reference" href="http://pygments.org/">pygments</a>
documentation, and a <a class="reference" href="http://article.gmane.org/gmane.text.docutils.user/3689">proof of concept</a> by Felix Wiemann.</p>
<table border="1" class="docutils">
<colgroup>
<col width="14%" />
<col width="86%" />
</colgroup>
<tbody valign="top">
<tr><td>2007-06-01</td>
<td>Removed redundancy from class values.</td>
</tr>
<tr><td>2007-06-04</td>
<td>Merge of successive tokens of same type
(code taken from pygments.formatters.others).</td>
</tr>
<tr><td>2007-06-05</td>
<td>Separate docutils formatter script
Use pygments' CSS class names (like the html formatter)
allowing the use of pygments-produced style sheets.</td>
</tr>
<tr><td>2007-06-07</td>
<td>Merge in the formatting of the parsed tokens
(misnamed as docutils_formatter) as class DocutilsInterface</td>
</tr>
<tr><td>2007-06-08</td>
<td>Failsave implementation (fallback to a standard literal block
if pygments not found)</td>
</tr>
</tbody>
</table>
<div class="system-message">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">/usr/src/docutils-svn/sandbox/code-block-directive/pygments_code_block_directive.py.txt</tt>, line 23)</p>
<p>Unknown directive type "code-block".</p>
<pre class="literal-block">
.. code-block::
"""Define and register a code-block directive using pygments
"""
</pre>
</div>
<div class="section">
<h1><a id="requirements" name="requirements">Requirements</a></h1>
<div class="system-message">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">/usr/src/docutils-svn/sandbox/code-block-directive/pygments_code_block_directive.py.txt</tt>, line 31)</p>
<p>Unknown directive type "code-block".</p>
<pre class="literal-block">
.. code-block::
from docutils import nodes
from docutils.parsers.rst import directives
try:
import pygments
from pygments.lexers import get_lexer_by_name
from pygments.formatters.html import _get_ttype_class
except ImportError:
pass
</pre>
</div>
</div>
<div class="section">
<h1><a id="customisation" name="customisation">Customisation</a></h1>
<p>Do not insert inline nodes for the following tokens.
(You could add e.g. Token.Punctuation like <tt class="docutils literal"><span class="pre">['',</span> <span class="pre">'p']</span></tt>.)</p>
<div class="system-message">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">/usr/src/docutils-svn/sandbox/code-block-directive/pygments_code_block_directive.py.txt</tt>, line 50)</p>
<p>Unknown directive type "code-block".</p>
<pre class="literal-block">
.. code-block::
unstyled_tokens = ['']
</pre>
</div>
</div>
<div class="section">
<h1><a id="docutilsinterface" name="docutilsinterface">DocutilsInterface</a></h1>
<p>This interface class combines code from
pygments.formatters.html and pygments.formatters.others.</p>
<p>It does not require anything of docutils and could also become a part of
pygments</p>
<div class="system-message">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">/usr/src/docutils-svn/sandbox/code-block-directive/pygments_code_block_directive.py.txt</tt>, line 63)</p>
<p>Unknown directive type "code-block".</p>
<pre class="literal-block">
.. code-block::
class DocutilsInterface(object):
"""Parse `code` string and yield "classified" tokens.
Arguments
code -- string of source code to parse
language -- formal language the code is written in.
Merge subsequent tokens of the same token-type.
Yields the tokens as ``(ttype_class, value)`` tuples,
where ttype_class is taken from pygments.token.STANDARD_TYPES and
corresponds to the class argument used in pygments html output.
"""
def __init__(self, code, language):
self.code = code
self.language = language
def lex(self):
# Get lexer for language (use text as fallback)
try:
lexer = get_lexer_by_name(self.language)
except ValueError:
# info: "no pygments lexer for %s, using 'text'"%self.language
lexer = get_lexer_by_name('text')
return pygments.lex(self.code, lexer)
def join(self, tokens):
"""join subsequent tokens of same token-type
"""
tokens = iter(tokens)
(lasttype, lastval) = tokens.next()
for ttype, value in tokens:
if ttype is lasttype:
lastval += value
else:
yield(lasttype, lastval)
(lasttype, lastval) = (ttype, value)
yield(lasttype, lastval)
def __iter__(self):
"""parse code string and yield "clasified" tokens
"""
try:
tokens = self.lex()
except IOError:
print "INFO: Pygments lexer not found, using fallback"
# TODO: write message to INFO
yield ('', self.code)
return
for ttype, value in self.join(tokens):
yield (_get_ttype_class(ttype), value)
</pre>
</div>
</div>
<div class="section">
<h1><a id="code-block-directive" name="code-block-directive">code_block_directive</a></h1>
<div class="system-message">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">/usr/src/docutils-svn/sandbox/code-block-directive/pygments_code_block_directive.py.txt</tt>, line 127)</p>
<p>Unknown directive type "code-block".</p>
<pre class="literal-block">
.. code-block::
def code_block_directive(name, arguments, options, content, lineno,
content_offset, block_text, state, state_machine):
"""parse and classify content of a code_block
"""
language = arguments[0]
# create a literal block element and set class argument
code_block = nodes.literal_block(classes=["code-block", language])
# parse content with pygments and add to code_block element
for cls, value in DocutilsInterface(u'\n'.join(content), language):
if cls in unstyled_tokens:
# insert as Text to decrease the verbosity of the output.
code_block += nodes.Text(value, value)
else:
code_block += nodes.inline(value, value, classes=[cls])
return [code_block]
</pre>
</div>
</div>
<div class="section">
<h1><a id="register-directive" name="register-directive">Register Directive</a></h1>
<div class="system-message">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">/usr/src/docutils-svn/sandbox/code-block-directive/pygments_code_block_directive.py.txt</tt>, line 151)</p>
<p>Unknown directive type "code-block".</p>
<pre class="literal-block">
.. code-block::
code_block_directive.arguments = (1, 0, 1)
code_block_directive.content = 1
directives.register_directive('code-block', code_block_directive)
</pre>
</div>
</div>
<div class="section">
<h1><a id="test-output" name="test-output">Test output</a></h1>
<p>If called from the command line, call the docutils publisher to render the
input</p>
<div class="system-message">
<p class="system-message-title">System Message: ERROR/3 (<tt class="docutils">/usr/src/docutils-svn/sandbox/code-block-directive/pygments_code_block_directive.py.txt</tt>, line 169)</p>
<p>Unknown directive type "code-block".</p>
<pre class="literal-block">
.. code-block::
if __name__ == '__main__':
from docutils.core import publish_cmdline, default_description
description = "code-block directive test output" + default_description
try:
import locale
locale.setlocale(locale.LC_ALL, '')
except:
pass
# Uncomment the desired output format:
publish_cmdline(writer_name='pseudoxml', description=description)
# publish_cmdline(writer_name='xml', description=description)
# publish_cmdline(writer_name='html', description=description)
# publish_cmdline(writer_name='latex', description=description)
# publish_cmdline(writer_name='newlatex2e', description=description)
</pre>
</div>
</div>
</div>
<div class="footer">
<hr class="footer" />
<a class="reference" href="pygments_code_block_directive.py.txt">View document source</a>.
Generated on: 2007-06-13.
</div>
</body>
</html>
|
