Bugs item #1381029, was opened at 2005-12-15 00:41
Message generated for change (Comment added) made by sand0z
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Category: Core
Group: 0.85
Status: Open
Resolution: None
Priority: 5
Submitted By: sand0z (sand0z)
Assigned to: Nobody/Anonymous (nobody)
Summary: Expression evaluation less than or equals requires <
Initial Comment:
I'm using nant build 0.85.2143.0; nightly 11/13/2005.
I want to see if one integer is less than or equal to
another. That is, compare to integers using <=
1. So I write my test:
<if test="${5 <= 0}" >
<echo message="Val 1 not-less-or-equal-to 0 or less."
/> </if>
I shouldn't get a:
"Error loading buildfile.
'<', hexadecimal value 0x3c, is an invalid attribute
character, Line 159, position 20."
(I've attached the stack trace)
2. If I go: >=, as in:
<if test="${5 >= 0}" >
<echo message="Val 1 not-less-or-equal-to 0 or less."
/> </if>
Things work fine.
3. If I go: <=
<if test="${5 <= 0}" >
<echo message="Val 1 not-less-or-equal-to 0 or less."
/> </if>
Things work fine.
4. If I go: ==
<if test="${5 == 0}" >
<echo message="Val 1 not-less-or-equal-to 0 or less."
/> </if>
Things work fine.
Thanks for looking into this! If a bug has already been
submitted for this, please forgive, I did do some
searching to see if this bug existed, but if something
was there, I couldn't find it.
----------------------------------------------------------------------
>Comment By: sand0z (sand0z)
Date: 2005-12-15 16:13
Message:
Logged In: YES
user_id=1338161
I'm not sure what you mean, "by design". I'm not sure why <=
doesn't work but ==, and >= works. If you can get == and >=
working, then <= should work also. It seems like a bug, not
an inherent flaw. Perhaps I completely misunderstand what
you have said. Could you clarify what you mean?
< for that mater > (ie, less than, greater than) I'm
not sure where it comes from either. I know it is something
that you can use in html to get < and > to render ok on web
pages. I used it because I used the " and > before
to work around another problem where I needed quotes within
quotes and a > (redirect, also a "greater than")... (so I
tried < and it worked)
see?
<echo append="True" file="encryptor.bat"
message="${g_HexBin}\Encryptor.exe "${g_KeyFile}"
"${g_FileToEncryptPath}\"
${g_EncryptFlags} > ${tEncryptionOutFile}" />
created a encryptor.bat file with a single line that looked
like:
c:\somedir with a space\Encryptor.exe "ceasar.txt"
"c:\somedir with a space\somefile.txt" -e > outfile.txt
----------------------------------------------------------------------
Comment By: Martin Aliger (maliger)
Date: 2005-12-15 06:53
Message:
Logged In: YES
user_id=655297
This is "by design". In fact everything built atop of XML
have this flaw. XSLT comes to my mind, but there are alot
of technologies around.
Maybe we should stress this fact in documentation. I was
unable to find any mention of < at all. (expression
page?)
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