(A) An alien error message (not generated by Perl).
Optional warnings are enabled by using the B<-w> switch. Warnings may
-be captured by setting C<$SIG{__WARN__}> to a reference to a routine that will be
-called on each warning instead of printing it. See L<perlvar>.
+be captured by setting C<$SIG{__WARN__}> to a reference to a routine that
+will be called on each warning instead of printing it. See L<perlvar>.
Trappable errors may be trapped using the eval operator. See
L<perlfunc/eval>.
it gives you this warning. Usually it indicates that an operator or
delimiter was omitted, such as a semicolon.
-=item %s had compilation errors.
+=item %s had compilation errors
(F) The final summary message when a C<perl -c> fails.
-=item %s has too many errors.
+=item %s has too many errors
(F) The parser has given up trying to parse the program after 10 errors.
Further error messages would likely be uninformative.
(F) The final summary message when a C<perl -c> succeeds.
-=item %s: Command not found.
+=item %s: Command not found
(A) You've accidentally run your script through B<csh> instead
-of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
-into Perl yourself.
+of Perl. Check the #! line, or manually feed your script into
+Perl yourself.
-=item %s: Expression syntax.
+=item %s: Expression syntax
(A) You've accidentally run your script through B<csh> instead
-of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
-into Perl yourself.
+of Perl. Check the #! line, or manually feed your script into
+Perl yourself.
-=item %s: Undefined variable.
+=item %s: Undefined variable
(A) You've accidentally run your script through B<csh> instead
-of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
-into Perl yourself.
+of Perl. Check the #! line, or manually feed your script into
+Perl yourself.
=item %s: not found
(A) You've accidentally run your script through the Bourne shell
-instead of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
+instead of Perl. Check the #! line, or manually feed your script
into Perl yourself.
=item B<-P> not allowed for setuid/setgid script
(F) You can't allocate more than 2^31+"small amount" bytes.
+=item Applying %s to %s will act on scalar(%s)
+
+(W) The pattern match (//), substitution (s///), and translation (tr///)
+operators work on scalar values. If you apply one of them to an array
+or a hash, it will convert the array or hash to a scalar value -- the
+length of an array, or the population info of a hash -- and then work on
+that scalar value. This is probably not what you meant to do. See
+L<perlfunc/grep> and L<perlfunc/map> for alternatives.
+
=item Arg too short for msgsnd
(F) msgsnd() requires a string at least as long as sizeof(long).
=item Args must match #! line
(F) The setuid emulator requires that the arguments Perl was invoked
-with match the arguments specified on the #! line.
+with match the arguments specified on the #! line. Since some systems
+impose a one-argument limit on the #! line, try combining switches;
+for example, turn C<-w -U> into C<-wU>.
-=item Argument "%s" isn't numeric
+=item Argument "%s" isn't numeric%s
(W) The indicated string was fed as an argument to an operator that
expected a numeric value instead. If you're fortunate the message
S<sizeof(struct msqid_ds *)>, S<sizeof(struct semid_ds *)>, and
S<sizeof(struct shmid_ds *)>.
-=item Bad associative array
-
-(P) One of the internal hash routines was passed a null HV pointer.
-
=item Bad filehandle: %s
(F) A symbol was passed to something wanting a filehandle, but the symbol
C<Berkeley DB> which is left unnoticed if C<DB> uses I<forgiving>
system malloc().
+=item Bad hash
+
+(P) One of the internal hash routines was passed a null HV pointer.
+
=item Bad name after %s::
(F) You started to name a symbol by using a package prefix, and then didn't
=item Badly placed ()'s
(A) You've accidentally run your script through B<csh> instead
-of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
-into Perl yourself.
+of Perl. Check the #! line, or manually feed your script into
+Perl yourself.
=item BEGIN failed--compilation aborted
(F) An untrapped exception was raised while executing a BEGIN subroutine.
Compilation stops immediately and the interpreter is exited.
+=item BEGIN not safe after errors--compilation aborted
+
+(F) Perl found a C<BEGIN {}> subroutine (or a C<use> directive, which
+implies a C<BEGIN {}>) after one or more compilation errors had
+already occurred. Since the intended environment for the C<BEGIN {}>
+could not be guaranteed (due to the errors), and since subsequent code
+likely depends on its correct operation, Perl just gave up.
+
=item bind() on closed fd
(W) You tried to do a bind on a closed socket. Did you forget to check
there isn't a current block. Note that an "if" or "else" block doesn't
count as a "loopish" block, as doesn't a block given to sort(). You can
usually double the curlies to get the same effect though, because the inner
-curlies will be considered a block that loops once. See L<perlfunc/last>.
+curlies will be considered a block that loops once. See L<perlfunc/next>.
=item Can't "redo" outside a block
there isn't a current block. Note that an "if" or "else" block doesn't
count as a "loopish" block, as doesn't a block given to sort(). You can
usually double the curlies to get the same effect though, because the inner
-curlies will be considered a block that loops once. See L<perlfunc/last>.
+curlies will be considered a block that loops once. See L<perlfunc/redo>.
=item Can't bless non-reference value
=item Can't break at that line
-(S) A warning intended for while running within the debugger, indicating
+(S) A warning intended to only be printed while running within the debugger, indicating
the line number specified wasn't the location of a statement that could
be stopped at.
=item Can't open %s: %s
-(S) An inplace edit couldn't open the original file for the indicated reason.
+(S) An in-place edit couldn't open the original file for the indicated reason.
Usually this is because you don't have read permission for the file.
=item Can't open bidirectional pipe
inlining. See L<perlsub/"Constant Functions"> for commentary and
workarounds.
+=item Constant subroutine %s undefined
+
+(S) You undefined a subroutine which had previously been eligible for
+inlining. See L<perlsub/"Constant Functions"> for commentary and
+workarounds.
+
=item Copy method did not return a reference
(F) The method which overloads "=" is buggy. See L<overload/Copy Constructor>.
passed an invalid file specification to Perl, or you've found a
case the conversion routines don't handle. Drat.
-=item Execution of %s aborted due to compilation errors.
+=item Execution of %s aborted due to compilation errors
(F) The final summary message when a Perl compilation fails.
=item Global symbol "%s" requires explicit package name
-(F) You've said "use strict vars", which indicates that all variables must
-either be lexically scoped (using "my"), or explicitly qualified to
+(F) You've said "use strict vars", which indicates that all variables
+must either be lexically scoped (using "my"), or explicitly qualified to
say which package the global variable is in (using "::").
=item goto must have label
might directly modify logical name tables and introduce non-standard names,
or it may indicate that a logical name table has been corrupted.
+=item Illegal character %s (carriage return)
+
+(F) A carriage return character was found in the input. This is an
+error, and not a warning, because carriage return characters can break
+here documents (e.g., C<print E<lt>E<lt>EOF;>).
+
+Under UNIX, this error is usually caused by executing Perl code --
+either the main program, a module, or an eval'd string -- that was
+transferred over a network connection from a non-UNIX system without
+properly converting the text file format.
+
+Under systems that use something other than '\n' to delimit lines of
+text, this error can also be caused by reading Perl code from a file
+handle that is in binary mode (as set by the C<binmode> operator).
+
+In either case, the Perl code in question will probably need to be
+converted with something like C<s/\x0D\x0A?/\n/g> before it can be
+executed.
+
=item Illegal division by zero
(F) You tried to divide a number by 0. Either something was wrong in your
(W) You may have tried to use an 8 or 9 in a octal number. Interpretation
of the octal number stopped before the 8 or 9.
+=item In string, @%s now must be written as \@%s
+
+(F) It used to be that Perl would try to guess whether you wanted an
+array interpolated or a literal @. It did this when the string was first
+used at runtime. Now strings are parsed at compile time, and ambiguous
+instances of @ must be disambiguated, either by prepending a backslash to
+indicate a literal, or by declaring (or using) the array within the
+program before the string (lexically). (Someday it will simply assume
+that an unbackslashed @ interpolates an array.)
+
=item Insecure dependency in %s
(F) You tried to do something that the tainting mechanism didn't like.
(W) You tried to do a listen on a closed socket. Did you forget to check
the return value of your socket() call? See L<perlfunc/listen>.
-=item Literal @%s now requires backslash
-
-(F) It used to be that Perl would try to guess whether you wanted an
-array interpolated or a literal @. It did this when the string was
-first used at runtime. Now strings are parsed at compile time, and
-ambiguous instances of @ must be disambiguated, either by putting a
-backslash to indicate a literal, or by declaring (or using) the array
-within the program before the string (lexically). (Someday it will simply
-assume that an unbackslashed @ interpolates an array.)
-
=item Method for operation %s not found in package %s during blessing
(F) An attempt was made to specify an entry in an overloading table that
=item Name "%s::%s" used only once: possible typo
-(W) Typographical errors often show up as unique variable names. If you
-had a good reason for having a unique name, then just mention it
-again somehow to suppress the message (the C<use vars> pragma is
-provided for just this purpose).
+(W) Typographical errors often show up as unique variable names.
+If you had a good reason for having a unique name, then just mention
+it again somehow to suppress the message. The C<use vars> pragma is
+provided for just this purpose.
=item Negative length
=item No command into which to pipe on command line
(F) An error peculiar to VMS. Perl handles its own command line redirection,
-and found a '|' at the end of the command line, so it doesn't know whither you
+and found a '|' at the end of the command line, so it doesn't know where you
want to pipe the output from this command.
=item No DB::DB routine defined
(F) An error peculiar to VMS. Perl handles its own command line redirection,
and found a lone 'E<gt>' at the end of the command line, so it doesn't know
-whither you wanted to redirect stdout.
+where you wanted to redirect stdout.
=item No output file after E<gt> or E<gt>E<gt> on command line
=item Possible attempt to separate words with commas
(W) qw() lists contain items separated by whitespace; therefore commas
-aren't needed to separate the items. (You may have used different
+aren't needed to separate the items. (You may have used different
delimiters than the parentheses shown here; braces are also frequently
used.)
open(FOO || die);
-because of the strict regularization of Perl 5's grammar into unary and
-list operators. (The old open was a little of both.) You must put
-parentheses around the filehandle, or use the new "or" operator instead of "||".
+because of the strict regularization of Perl 5's grammar into unary
+and list operators. (The old open was a little of both.) You must
+put parentheses around the filehandle, or use the new "or" operator
+instead of "||".
=item print on closed filehandle %s
=item Script is not setuid/setgid in suidperl
-(F) Oddly, the suidperl program was invoked on a script with its setuid
-or setgid bit not set. This doesn't make much sense.
+(F) Oddly, the suidperl program was invoked on a script without a setuid
+or setgid bit set. This doesn't make much sense.
=item Search pattern not terminated
=item seek() on unopened file
(W) You tried to use the seek() function on a filehandle that was either
-never opened or has been closed since.
+never opened or has since been closed.
=item select not implemented
=item Server error
-Also known as "500 Server error". This is a CGI error, not a Perl
-error. You need to make sure your script is executable, is accessible
-by the user CGI is running the script under (which is probably not
-the user account you tested it under), does not rely on any environment
-variables (like PATH) from the user it isn't running under, and isn't
-in a location where the CGI server can't find it, basically, more or less.
+Also known as "500 Server error".
+
+B<This is a CGI error, not a Perl error>.
+
+You need to make sure your script is executable, is accessible by the user
+CGI is running the script under (which is probably not the user account you
+tested it under), does not rely on any environment variables (like PATH)
+from the user it isn't running under, and isn't in a location where the CGI
+server can't find it, basically, more or less. Please see the following
+for more information:
+
+ http://www.perl.com/perl/faq/idiots-guide.html
+ http://www.perl.com/perl/faq/perl-cgi-faq.html
+ ftp://rtfm.mit.edu/pub/usenet/news.answers/www/cgi-faq
+ http://hoohoo.ncsa.uiuc.edu/cgi/interface.html
+ http://www-genome.wi.mit.edu/WWW/faqs/www-security-faq.html
=item setegid() not implemented
(W) You tried to do a shutdown on a closed socket. Seems a bit superfluous.
-=item SIG%s handler "%s" not defined.
+=item SIG%s handler "%s" not defined
(W) The signal handler named in %SIG doesn't, in fact, exist. Perhaps you
put it into the wrong package?
=item Stat on unopened file E<lt>%sE<gt>
(W) You tried to use the stat() function (or an equivalent file test)
-on a filehandle that was either never opened or has been closed since.
+on a filehandle that was either never opened or has since been closed.
=item Statement unlikely to be reached
(P) The substitution was looping infinitely. (Obviously, a
substitution shouldn't iterate more times than there are characters of
-input, which is what happened.) See the discussion of substitution in
+input, which is what happened.) See the discussion of substitution in
L<perlop/"Quote and Quote-like Operators">.
=item Substitution pattern not terminated
That is, the absolute value of the offset was larger than the length of
the string. See L<perlfunc/substr>.
-=item suidperl is no longer needed since...
+=item suidperl is no longer needed since %s
(F) Your Perl was compiled with B<-D>SETUID_SCRIPTS_ARE_SECURE_NOW, but a
version of the setuid emulator somehow got run anyway.
=item syntax error at line %d: `%s' unexpected
(A) You've accidentally run your script through the Bourne shell
-instead of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
+instead of Perl. Check the #! line, or manually feed your script
into Perl yourself.
=item System V IPC is not implemented on this machine
=item tell() on unopened file
(W) You tried to use the tell() function on a filehandle that was either
-never opened or has been closed since.
+never opened or has since been closed.
=item Test on unopened file E<lt>%sE<gt>
The function indicated isn't implemented on this architecture, according
to the probings of Configure.
-=item The crypt() function is unimplemented due to excessive paranoia.
+=item The crypt() function is unimplemented due to excessive paranoia
(F) Configure couldn't find the crypt() function on your machine,
probably because your vendor didn't supply it, probably because they
(F) There has to be at least one argument to syscall() to specify the
system call to call, silly dilly.
+=item Too late for "B<-T>" option
+
+(X) The #! line (or local equivalent) in a Perl script contains the
+B<-T> option, but Perl was not invoked with B<-T> in its argument
+list. This is an error because, by the time Perl discovers a B<-T> in
+a script, it's too late to properly taint everything from the
+environment. So Perl gives up.
+
+If the Perl script is being executed as a command using the #!
+mechanism (or its local equivalent), this error can usually be fixed
+by editing the #! line so that the B<-T> option is a part of Perl's
+first argument: e.g. change C<perl -n -T> to C<perl -T -n>.
+
+If the Perl script is being executed as C<perl scriptname>, then the
+B<-T> option must appear on the command line: C<perl -T scriptname>.
+
=item Too many ('s
=item Too many )'s
(A) You've accidentally run your script through B<csh> instead
-of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
-into Perl yourself.
+of Perl. Check the #! line, or manually feed your script into
+Perl yourself.
=item Too many args to syscall
(W) A file operation was attempted on a filename, and that operation
failed, PROBABLY because the filename contained a newline, PROBABLY
-because you forgot to chop() or chomp() it off. See L<perlfunc/chop>.
+because you forgot to chop() or chomp() it off. See L<perlfunc/chomp>.
=item Unsupported directory function "%s" called
(W) A copy of the object returned from C<tie> (or C<tied>) was still
valid when C<untie> was called.
-=item Value of %s construct can be "0"; test with defined()
+=item Value of %s can be "0"; test with defined()
-(W) In a conditional expression, you used <HANDLE>, <*> (glob), or
-C<readdir> as a boolean value. Each of these constructs can return a
-value of "0"; that would make the conditional expression false, which
-is probably not what you intended. When using these constructs in
-conditional expressions, test their values with the C<defined> operator.
+(W) In a conditional expression, you used <HANDLE>, <*> (glob), C<each()>,
+or C<readdir()> as a boolean value. Each of these constructs can return a
+value of "0"; that would make the conditional expression false, which is
+probably not what you intended. When using these constructs in conditional
+expressions, test their values with the C<defined> operator.
-=item Variable "%s" is not exported
+=item Variable "%s" is not imported%s
(F) While "use strict" in effect, you referred to a global variable
that you apparently thought was imported from another module, because
they are automatically re-bound to the current values of such
variables.
-=item Variable syntax.
+=item Variable syntax
(A) You've accidentally run your script through B<csh> instead
-of Perl. Check the E<lt>#!E<gt> line, or manually feed your script
-into Perl yourself.
+of Perl. Check the #! line, or manually feed your script into
+Perl yourself.
=item Warning: something's wrong
(W) You passed warn() an empty string (the equivalent of C<warn "">) or
you called it with no args and C<$_> was empty.
-=item Warning: unable to close filehandle %s properly.
+=item Warning: unable to close filehandle %s properly
(S) The implicit close() done by an open() got an error indication on the
close(). This usually indicates your file system ran out of disk space.
projects / p5sagit/p5-mst-13.2.git / blobdiff