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Posted to dev@ant.apache.org by bu...@apache.org on 2003/07/24 18:10:24 UTC
DO NOT REPLY [Bug 21858] New: -
Improper handling of "--" comments in the task
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=21858
Improper handling of "--" comments in the <sql> task
Summary: Improper handling of "--" comments in the <sql> task
Product: Ant
Version: 1.5.3
Platform: Other
OS/Version: Windows NT/2K
Status: NEW
Severity: Critical
Priority: Other
Component: Core tasks
AssignedTo: dev@ant.apache.org
ReportedBy: razvan.surdulescu@post.harvard.edu
There is a problem in the way the <sql> task handles "--" comments.
Consider the following example of a .sql file fragment:
...
select * from people; -- show me some people
select * from plants; -- show me some plants
...
Note that there is a newline between the two select statements above.
On line 460 of SQLExec.java, the code will detect that the first line contains
a "--" so it will continue as if the statement has not yet completed (even
though the "--" is preceded by a ";" that should normally end the statement).
Thus far, the "sql" variable contains "select * from people; -- show me some
people\n"
The next line in the file is an empty line, so, on line 454, the "sql" variable
will contain "select * from people; -- show me some people\n \n", and on line
454 (after the .trim()) the "sql" variable will contain "select * from people; -
- show me some people"
Note that the sql statement is still not considered to have ended thus far.
We now move on to the next line in the .sql file, where the sql statement
becomes:
"select * from people; -- show me some people select * from plants; -- show me
some plants"
This new statement is already invalid: the second select is commented out since
it follows on the same line as "--"!
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