twisted.xish.xpathparser.html [plain text]
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<a href="twisted.html">Package twisted</a> ::
<a href="twisted.xish.html">Package xish</a> ::
Module xpathparser
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<h2 class="module">Module twisted.xish.xpathparser</h2>
<p>Run time libraries needed to run parsers generated by Yapps.</p>
This module defines parse-time exception classes, a scanner class, a
base class for parsers produced by Yapps, and a context class that keeps
track of the parse stack.
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<th colspan="2">Classes</th></tr>
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<b><a href="twisted.xish.xpathparser.Context.html"><code>Context</code></a></b></td>
<td>Class to represent the parser's call stack.</td></tr>
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<b><a href="twisted.xish.xpathparser.Parser.html"><code>Parser</code></a></b></td>
<td>Base class for Yapps-generated parsers.</td></tr>
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<b><a href="twisted.xish.xpathparser.Scanner.html"><code>Scanner</code></a></b></td>
<td>Yapps scanner.</td></tr>
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<b><a href="twisted.xish.xpathparser.XPathParser.html"><code>XPathParser</code></a></b></td>
<td> </td></tr>
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<b><a href="twisted.xish.xpathparser.XPathParserScanner.html"><code>XPathParserScanner</code></a></b></td>
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<!-- =========== START OF EXCEPTIONS =========== -->
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<th colspan="2">Exceptions</th></tr>
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<b><a href="twisted.xish.xpathparser.NoMoreTokens.html"><code>NoMoreTokens</code></a></b></td>
<td>Another exception object, for when we run out of tokens</td></tr>
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<b><a href="twisted.xish.xpathparser.SyntaxError.html"><code>SyntaxError</code></a></b></td>
<td>When we run into an unexpected token, this is the exception to use</td></tr>
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<!-- =========== START OF FUNCTION SUMMARY =========== -->
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<td><code><a name="parse"></a><span class="summary-sig"><span class="summary-sig-name">parse</span>(<span class=summary-sig-arg>rule</span>,
<span class=summary-sig-arg>text</span>)</span></code>
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<td><code><span class="summary-sig"><a href="twisted.xish.xpathparser.html#print_error" class="summary-sig-name"><code>print_error</code></a>(<span class=summary-sig-arg>input</span>,
<span class=summary-sig-arg>err</span>,
<span class=summary-sig-arg>scanner</span>)</span></code>
<br />
Print error messages, the parser stack, and the input text -- for
human-readable error messages.</td></tr>
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<td><code><span class="summary-sig"><a href="twisted.xish.xpathparser.html#print_line_with_pointer" class="summary-sig-name"><code>print_line_with_pointer</code></a>(<span class=summary-sig-arg>text</span>,
<span class=summary-sig-arg>p</span>)</span></code>
<br />
Print the line of 'text' that includes position 'p', along with a
second line with a single caret (^) at position p</td></tr>
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<td><code><a name="wrap_error_reporter"></a><span class="summary-sig"><span class="summary-sig-name">wrap_error_reporter</span>(<span class=summary-sig-arg>parser</span>,
<span class=summary-sig-arg>rule</span>)</span></code>
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<a name="print_error"></a>
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<h3><span class="sig"><span class="sig-name">print_error</span>(<span class=sig-arg>input</span>,
<span class=sig-arg>err</span>,
<span class=sig-arg>scanner</span>)</span>
</h3>
Print error messages, the parser stack, and the input text -- for
human-readable error messages.
<dl><dt></dt><dd>
</dd></dl>
</td></tr></table>
<a name="print_line_with_pointer"></a>
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<h3><span class="sig"><span class="sig-name">print_line_with_pointer</span>(<span class=sig-arg>text</span>,
<span class=sig-arg>p</span>)</span>
</h3>
Print the line of 'text' that includes position 'p', along with a
second line with a single caret (^) at position p
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