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List: kde-edu-devel
Subject: Review Request: Fixing bug 204068, adding ERROR-Token to parser
From: "Eike Krumbacher" <eike.krumbacher () x-eike ! de>
Date: 2011-11-18 23:26:41
Message-ID: 20111118232641.18681.88083 () vidsolbach ! de
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This is an automatically generated e-mail. To reply, visit:
http://git.reviewboard.kde.org/r/103182/
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Review request for KDE Edu.
Description
-------
Hello Folks!
If you have a set of functions like
f(x) = g x ²
g(x) = 2 x
* kmplot crashes without notice, because the parser reads "g" as a function and reports "Wrong \
number of arguments" but crashes.
* If "g" is meant to be a predefined constant the parser crashes because g is read as a \
function with wrong argument counts.
So there are several cases:
1) g(x) and f(x) exists in a file, reading the file should not crash
2) if g is a constant, whether in the file or "global", f(x) should read this constant first
3) a function set like
g(x) = 10 * g
f(x) = g(x) + g
should be read and displayed.
With the given diff, we can archive (1) and (2) but not (3), which now does not crash anymore \
but gives strange results. In the surrounding of the changes, I added some whitespaces to \
reflect the style guide of the given code. The main part is an introduction of the token \
"ERROR", adding this token to the stack in case of an error.
Have fun
Eike
This addresses bug 204068.
http://bugs.kde.org/show_bug.cgi?id=204068
Diffs
-----
kmplot/parser.h c3fb92e
kmplot/parser.cpp 23569aa
Diff: http://git.reviewboard.kde.org/r/103182/diff/diff
Testing
-------
(1), (2) and (3) was tested. The original file from the bug report associated with this review \
was tested. No crashes in these special cases.
Thanks,
Eike Krumbacher
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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/103182/">http://git.reviewboard.kde.org/r/103182/</a>
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<div>Review request for KDE Edu.</div>
<div>By Eike Krumbacher.</div>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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solid #b8b5a0"> <tr>
<td>
<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Hello Folks!
If you have a set of functions like
f(x) = g x ²
g(x) = 2 x
* kmplot crashes without notice, because the parser reads "g" as a function and \
reports "Wrong number of arguments" but crashes.
* If "g" is meant to be a predefined constant the parser crashes because g is read as \
a function with wrong argument counts.
So there are several cases:
1) g(x) and f(x) exists in a file, reading the file should not crash
2) if g is a constant, whether in the file or "global", f(x) should read this \
constant first 3) a function set like
g(x) = 10 * g
f(x) = g(x) + g
should be read and displayed.
With the given diff, we can archive (1) and (2) but not (3), which now does not crash anymore \
but gives strange results. In the surrounding of the changes, I added some whitespaces to \
reflect the style guide of the given code. The main part is an introduction of the token \
"ERROR", adding this token to the stack in case of an error.
Have fun
Eike</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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#b8b5a0"> <tr>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; \
white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">(1), (2) and (3) was \
tested. The original file from the bug report associated with this review was tested. No \
crashes in these special cases. </pre> </td>
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<div style="margin-top: 1.5em;">
<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="http://bugs.kde.org/show_bug.cgi?id=204068">204068</a>
</div>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
<ul style="margin-left: 3em; padding-left: 0;">
<li>kmplot/parser.h <span style="color: grey">(c3fb92e)</span></li>
<li>kmplot/parser.cpp <span style="color: grey">(23569aa)</span></li>
</ul>
<p><a href="http://git.reviewboard.kde.org/r/103182/diff/" style="margin-left: 3em;">View \
Diff</a></p>
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