Re: Naming Convention For Global Variables?

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Re^2: Naming Convention For Global Variables? by LanX (Saint) on Sep 28, 2012 at 11:12 UTC
perldoc -u perlvar \|perl -ne '$seen{$1}=1 if /(\$[A-Z_]+)\b/}{ print +join "\n", keys %seen' $ERRNO $RS $OSNAME $OUTPUT_FIELD_SEPARATOR $EXTENDED_OS_ERROR $LAST_SUBMATCH_RESULT $COMPILING $PREMATCH $OFMT $OUTPUT_RECORD_SEPARATOR $FORMAT_NAME $SUBSCRIPT_SEPARATOR $LIST_SEPARATOR $WARNING $EUID $FORMAT_LINE_BREAK_CHARACTERS $OS_ERROR $FORMAT_FORMFEED $PERL_VERSION $I $INPUT_RECORD_SEPARATOR $DEBUGGING $NR $REAL_USER_ID $CHILD_ERROR $PID $FORMAT_TOP_NAME $EVAL_ERROR $FORMAT_LINES_LEFT $POSTMATCH $EXECUTABLE_NAME $ACCUMULATOR $EXCEPTIONS_BEING_CAUGHT $FORMAT_LINES_PER_PAGE $LAST_PAREN_MATCH $OLD_PERL_VERSION $ORS $OUTPUT_AUTOFLUSH $EGID $ARRAY_BASE $BASETIME $REAL_GROUP_ID $EFFECTIVE_GROUP_ID $SUBSEP $OFS $ARGV $PROGRAM_NAME $SIG $FORMAT_PAGE_NUMBER $UID $SYSTEM_FD_MAX $INPUT_LINE_NUMBER $GID $INPLACE_EDIT $MATCH $LAST_REGEXP_CODE_RESULT $PROCESS_ID $EFFECTIVE_USER_ID $PERLDB $_ [download] Cheers Rolf UPDATE: added underscore	[reply] [d/l]
Re^3: Naming Convention For Global Variables? by tobyink (Canon) on Sep 28, 2012 at 12:56 UTC
With the exception of `$ARGV` none of those variables are used by perl itself. They are specific to English.pm (see English) and are documented in perlvar for convenience (even though barely anybody uses English.pm). `perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'`	[reply] [d/l]
Re^4: Naming Convention For Global Variables? by LanX (Saint) on Sep 28, 2012 at 15:02 UTC
~~You forgot at least $MATCH, $PREMATCH and $POSTMATCH.~~ I'll check later... UPDATE: Your right it's Perl Critic moaning w/o checking if English was used. :( Cheers Rolf	[reply]
Re^3: Naming Convention For Global Variables? by Anonymous Monk on Sep 28, 2012 at 11:24 UTC
Where is the conflict? `$ perl -wE " say $BASETIME " Name "main::BASETIME" used only once: possible typo at -e line 1. Use of uninitialized value $BASETIME in say at -e line 1.` [download]	[reply] [d/l]