Bugs item #1885856, was opened at 2008-02-03 20:33
Message generated for change (Settings changed) made by helly
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Category: None
Group: None
>Status: Closed
Resolution: Later
Priority: 5
Private: No
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: code generation error
Initial Comment:
consider the following example
/*!re2c
[0-9a-zA-Z+.\-]* ":" { schema given; }
[0-9a-zA-Z+.\-]* [^:\000?;#] [^\000?;#]* { netloc; }
[0-9a-zA-Z+.\-]* { path given; }
*/
The algorithm takes an URL.
http://www.sf.net/
The generated code chooses the case 2)
although it should select the case 1)
The generated code doesnt have such an error in case the regexp admitting
schema symbols is omitted.
/*!re2c
":" { schema given; }
[^:\000?;#] [^\000?;#]* { netloc; }
[\000?;#]* { ; }
*/
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Comment By: Marcus Börger (helly)
Date: 2008-02-03 22:37
Message:
Logged In: YES
user_id=271023
Originator: NO
Actually you have no else case here. As the documentation explains, re2c
will not generate and else or default state for you. Instead you have to do
so yourself. However re2c does not really allow this kind of constructs.
That is a beginning snippet that basically gets skipped and is a common
prefix to a bunch of states. Maybe re2c could get a detection for this kind
of stuff.
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