Profile of File/Basename.pm

Filename	/usr/share/perl/5.10/File/Basename.pm
Statements	Executed 145 statements in 2.51ms

Subroutines
Calls	P	F	Exclusive Time	Inclusive Time	Subroutine
1	1	1	1.30ms	1.40ms	File::Basename::::BEGIN@43File::Basename::BEGIN@43
6	4	3	200µs	247µs	File::Basename::::fileparseFile::Basename::fileparse
1	1	1	81µs	139µs	File::Basename::::fileparse_set_fstypeFile::Basename::fileparse_set_fstype
1	1	1	63µs	63µs	File::Basename::::BEGIN@51File::Basename::BEGIN@51
16	2	1	60µs	60µs	File::Basename::::CORE:matchFile::Basename::CORE:match (opcode)
10	1	1	45µs	45µs	File::Basename::::CORE:regcompFile::Basename::CORE:regcomp (opcode)
1	1	1	30µs	135µs	File::Basename::::dirnameFile::Basename::dirname
1	1	1	24µs	24µs	File::Basename::::BEGIN@371File::Basename::BEGIN@371
1	1	1	20µs	36µs	File::Basename::::_strip_trailing_sepFile::Basename::_strip_trailing_sep
1	1	1	16µs	39µs	File::Basename::::BEGIN@52File::Basename::BEGIN@52
1	1	1	14µs	17µs	File::Basename::::BEGIN@50File::Basename::BEGIN@50
1	1	1	10µs	10µs	File::Basename::::CORE:substFile::Basename::CORE:subst (opcode)
2	1	1	6µs	6µs	File::Basename::::CORE:substcontFile::Basename::CORE:substcont (opcode)
0	0	0	0s	0s	File::Basename::::basenameFile::Basename::basename

Call graph for these subroutines as a Graphviz dot language file.

Line	State ments	Time on line	Calls	Time in subs	Code
1					=head1 NAME
2
- -
38					package File::Basename;
39
40					# A bit of juggling to insure that C<use re 'taint';> always works, since
41					# File::Basename is used during the Perl build, when the re extension may
42					# not be available.
43					# spent 1.40ms (1.30+92µs) within File::Basename::BEGIN@43 which was called: # once (1.30ms+92µs) by XML::Simple::find_xml_file at line 47 BEGIN {
44	3	104µs			unless (eval { require re; })
45					{ eval ' sub re::import { $^H \|= 0x00100000; } ' } # HINT_RE_TAINT
46			1	33µs	import re 'taint'; # spent 33µs making 1 call to re::import
47	1	37µs	1	1.40ms	} # spent 1.40ms making 1 call to File::Basename::BEGIN@43
48
49
50	3	27µs	2	21µs	# spent 17µs (14+4) within File::Basename::BEGIN@50 which was called: # once (14µs+4µs) by XML::Simple::find_xml_file at line 50 use strict; # spent 17µs making 1 call to File::Basename::BEGIN@50 # spent 4µs making 1 call to strict::import
51	3	109µs	1	63µs	# spent 63µs within File::Basename::BEGIN@51 which was called: # once (63µs+0s) by XML::Simple::find_xml_file at line 51 use 5.006; # spent 63µs making 1 call to File::Basename::BEGIN@51
52	3	1.65ms	2	63µs	# spent 39µs (16+24) within File::Basename::BEGIN@52 which was called: # once (16µs+24µs) by XML::Simple::find_xml_file at line 52 use warnings; # spent 39µs making 1 call to File::Basename::BEGIN@52 # spent 24µs making 1 call to warnings::import
53	1	2µs			our(@ISA, @EXPORT, $VERSION, $Fileparse_fstype, $Fileparse_igncase);
54	1	2µs			require Exporter;
55	1	23µs			@ISA = qw(Exporter);
56	1	2µs			@EXPORT = qw(fileparse fileparse_set_fstype basename dirname);
57	1	700ns			$VERSION = "2.77";
58
59	1	5µs	1	139µs	fileparse_set_fstype($^O); # spent 139µs making 1 call to File::Basename::fileparse_set_fstype
60
61
62					=over 4
63
- -
104					# spent 247µs (200+47) within File::Basename::fileparse which was called 6 times, avg 41µs/call: # 3 times (86µs+19µs) by XML::Simple::find_xml_file at line 923 of XML/Simple.pm, avg 35µs/call # once (54µs+14µs) by File::Basename::dirname at line 294 # once (45µs+9µs) by FindBin::init at line 179 of FindBin.pm # once (15µs+4µs) by FindBin::init at line 186 of FindBin.pm sub fileparse {
105	96	260µs			my($fullname,@suffices) = @_;
106
107					unless (defined $fullname) {
108					require Carp;
109					Carp::croak("fileparse(): need a valid pathname");
110					}
111
112					my $orig_type = '';
113					my($type,$igncase) = ($Fileparse_fstype, $Fileparse_igncase);
114
115					my($taint) = substr($fullname,0,0); # Is $fullname tainted?
116
117					if ($type eq "VMS" and $fullname =~ m{/} ) {
118					# We're doing Unix emulation
119					$orig_type = $type;
120					$type = 'Unix';
121					}
122
123					my($dirpath, $basename);
124
125					if (grep { $type eq $_ } qw(MSDOS DOS MSWin32 Epoc)) {
126					($dirpath,$basename) = ($fullname =~ /^((?:.[:\\\/])?)(.)/s);
127					$dirpath .= '.\\' unless $dirpath =~ /[\\\/]\z/;
128					}
129					elsif ($type eq "OS2") {
130					($dirpath,$basename) = ($fullname =~ m#^((?:.[:\\/])?)(.)#s);
131					$dirpath = './' unless $dirpath; # Can't be 0
132					$dirpath .= '/' unless $dirpath =~ m#[\\/]\z#;
133					}
134					elsif ($type eq "MacOS") {
135					($dirpath,$basename) = ($fullname =~ /^(.:)?(.)/s);
136					$dirpath = ':' unless $dirpath;
137					}
138					elsif ($type eq "AmigaOS") {
139					($dirpath,$basename) = ($fullname =~ /(.[:\/])?(.)/s);
140					$dirpath = './' unless $dirpath;
141					}
142					elsif ($type eq 'VMS' ) {
143					($dirpath,$basename) = ($fullname =~ /^(.[:>\]])?(.)/s);
144					$dirpath \|\|= ''; # should always be defined
145					}
146					else { # Default to Unix semantics.
147			6	47µs	($dirpath,$basename) = ($fullname =~ m{^(./)?(.)}s); # spent 47µs making 6 calls to File::Basename::CORE:match, avg 8µs/call
148					if ($orig_type eq 'VMS' and $fullname =~ m{^(/[^/]+/000000(/\|$))(.*)}) {
149					# dev:[000000] is top of VMS tree, similar to Unix '/'
150					# so strip it off and treat the rest as "normal"
151					my $devspec = $1;
152					my $remainder = $3;
153					($dirpath,$basename) = ($remainder =~ m{^(./)?(.)}s);
154					$dirpath \|\|= ''; # should always be defined
155					$dirpath = $devspec.$dirpath;
156					}
157					$dirpath = './' unless $dirpath;
158					}
159
160
161					my $tail = '';
162					my $suffix = '';
163					if (@suffices) {
164					foreach $suffix (@suffices) {
165					my $pat = ($igncase ? '(?i)' : '') . "($suffix)\$";
166					if ($basename =~ s/$pat//s) {
167					$taint .= substr($suffix,0,0);
168					$tail = $1 . $tail;
169					}
170					}
171					}
172
173					# Ensure taint is propgated from the path to its pieces.
174					$tail .= $taint;
175					wantarray ? ($basename .= $taint, $dirpath .= $taint, $tail)
176					: ($basename .= $taint);
177					}
178
- -
181					=item C<basename>
182
- -
214					sub basename {
215					my($path) = shift;
216
217					# From BSD basename(1)
218					# The basename utility deletes any prefix ending with the last slash `/'
219					# character present in string (after first stripping trailing slashes)
220					_strip_trailing_sep($path);
221
222					my($basename, $dirname, $suffix) = fileparse( $path, map("\Q$_\E",@_) );
223
224					# From BSD basename(1)
225					# The suffix is not stripped if it is identical to the remaining
226					# characters in string.
227					if( length $suffix and !length $basename ) {
228					$basename = $suffix;
229					}
230
231					# Ensure that basename '/' == '/'
232					if( !length $basename ) {
233					$basename = $dirname;
234					}
235
236					return $basename;
237					}
238
- -
241					=item C<dirname>
242
- -
283					# spent 135µs (30+104) within File::Basename::dirname which was called: # once (30µs+104µs) by XML::SAX::load_parsers at line 57 of XML/SAX.pm sub dirname {
284	8	26µs			my $path = shift;
285
286					my($type) = $Fileparse_fstype;
287
288					if( $type eq 'VMS' and $path =~ m{/} ) {
289					# Parse as Unix
290					local($File::Basename::Fileparse_fstype) = '';
291					return dirname($path);
292					}
293
294			1	68µs	my($basename, $dirname) = fileparse($path); # spent 68µs making 1 call to File::Basename::fileparse
295
296					if ($type eq 'VMS') {
297					$dirname \|\|= $ENV{DEFAULT};
298					}
299					elsif ($type eq 'MacOS') {
300					if( !length($basename) && $dirname !~ /^[^:]+:\z/) {
301					_strip_trailing_sep($dirname);
302					($basename,$dirname) = fileparse $dirname;
303					}
304					$dirname .= ":" unless $dirname =~ /:\z/;
305					}
306					elsif (grep { $type eq $_ } qw(MSDOS DOS MSWin32 OS2)) {
307					_strip_trailing_sep($dirname);
308					unless( length($basename) ) {
309					($basename,$dirname) = fileparse $dirname;
310					_strip_trailing_sep($dirname);
311					}
312					}
313					elsif ($type eq 'AmigaOS') {
314					if ( $dirname =~ /:\z/) { return $dirname }
315					chop $dirname;
316					$dirname =~ s{[^:/]+\z}{} unless length($basename);
317					}
318					else {
319			1	36µs	_strip_trailing_sep($dirname); # spent 36µs making 1 call to File::Basename::_strip_trailing_sep
320					unless( length($basename) ) {
321					($basename,$dirname) = fileparse $dirname;
322					_strip_trailing_sep($dirname);
323					}
324					}
325
326					$dirname;
327					}
328
329
330					# Strip the trailing path separator.
331					# spent 36µs (20+16) within File::Basename::_strip_trailing_sep which was called: # once (20µs+16µs) by File::Basename::dirname at line 319 sub _strip_trailing_sep {
332	3	36µs			my $type = $Fileparse_fstype;
333
334					if ($type eq 'MacOS') {
335					$_[0] =~ s/([^:]):\z/$1/s;
336					}
337					elsif (grep { $type eq $_ } qw(MSDOS DOS MSWin32 OS2)) {
338					$_[0] =~ s/([^:])[\\\/]*\z/$1/;
339					}
340					else {
341			3	16µs	$_[0] =~ s{(.)/*\z}{$1}s; # spent 10µs making 1 call to File::Basename::CORE:subst # spent 6µs making 2 calls to File::Basename::CORE:substcont, avg 3µs/call
342					}
343					}
344
345
346					=item C<fileparse_set_fstype>
347
- -
371					# spent 24µs within File::Basename::BEGIN@371 which was called: # once (24µs+0s) by XML::Simple::find_xml_file at line 394 BEGIN {
372
373	2	25µs			my @Ignore_Case = qw(MacOS VMS AmigaOS OS2 RISCOS MSWin32 MSDOS DOS Epoc);
374					my @Types = (@Ignore_Case, qw(Unix));
375
376					# spent 139µs (81+58) within File::Basename::fileparse_set_fstype which was called: # once (81µs+58µs) by XML::Simple::find_xml_file at line 59 sub fileparse_set_fstype {
377	17	141µs			my $old = $Fileparse_fstype;
378
379					if (@_) {
380					my $new_type = shift;
381
382					$Fileparse_fstype = 'Unix'; # default
383					foreach my $type (@Types) {
384			20	58µs	$Fileparse_fstype = $type if $new_type =~ /^$type/i; # spent 45µs making 10 calls to File::Basename::CORE:regcomp, avg 4µs/call # spent 14µs making 10 calls to File::Basename::CORE:match, avg 1µs/call
385					}
386
387					$Fileparse_igncase =
388					(grep $Fileparse_fstype eq $_, @Ignore_Case) ? 1 : 0;
389					}
390
391					return $old;
392					}
393
394	1	48µs	1	24µs	} # spent 24µs making 1 call to File::Basename::BEGIN@371
395
396
397	1	14µs			1;
398
399
400					=head1 SEE ALSO

					# spent 60µs within File::Basename::CORE:match which was called 16 times, avg 4µs/call: # 10 times (14µs+0s) by File::Basename::fileparse_set_fstype at line 384, avg 1µs/call # 6 times (47µs+0s) by File::Basename::fileparse at line 147, avg 8µs/call sub File::Basename::CORE:match; # opcode
					# spent 45µs within File::Basename::CORE:regcomp which was called 10 times, avg 4µs/call: # 10 times (45µs+0s) by File::Basename::fileparse_set_fstype at line 384, avg 4µs/call sub File::Basename::CORE:regcomp; # opcode
					# spent 10µs within File::Basename::CORE:subst which was called: # once (10µs+0s) by File::Basename::_strip_trailing_sep at line 341 sub File::Basename::CORE:subst; # opcode
					# spent 6µs within File::Basename::CORE:substcont which was called 2 times, avg 3µs/call: # 2 times (6µs+0s) by File::Basename::_strip_trailing_sep at line 341, avg 3µs/call sub File::Basename::CORE:substcont; # opcode