3 # Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
9 # 1. Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
11 # 2. Redistributions in binary form must reproduce the above copyright
12 # notice, this list of conditions and the following disclaimer in the
13 # documentation and/or other materials provided with the distribution.
14 # 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
15 # its contributors may be used to endorse or promote products derived
16 # from this software without specific prior written permission.
18 # THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
19 # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20 # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 # DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
22 # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 # Used for helping remove extra blank lines from files when processing.
30 # see split-class for an example usage (or other scripts in bugzilla)
34 our ($VERSION, @ISA, @EXPORT, @EXPORT_OK, %EXPORT_TAGS);
37 @EXPORT = qw(&resetSpacingHeuristics &isOnlyWhiteSpace &applySpacingHeuristicsAndPrint &setPreviousAllowedLine &setPreviousAllowedLine &printPendingEmptyLines &ignoringLine);
44 my $justFoundEmptyLine = 0;
45 my $previousLineWasDisallowed = 0;
46 my $previousAllowedLine = "";
47 my $pendingEmptyLines = "";
49 sub resetSpacingHeuristics
51 $justFoundEmptyLine = 0;
52 $previousLineWasDisallowed = 0;
53 $previousAllowedLine = "";
54 $pendingEmptyLines = "";
60 my $isOnlyWhiteSpace = ($line =~ m/^\s+$/);
61 $pendingEmptyLines .= $line if ($isOnlyWhiteSpace);
62 return $isOnlyWhiteSpace;
65 sub applySpacingHeuristicsAndPrint
67 my ($out, $line) = @_;
69 printPendingEmptyLines($out, $line);
70 $previousLineWasDisallowed = 0;
74 sub setPreviousAllowedLine
77 $previousAllowedLine = $line;
80 sub printPendingEmptyLines
84 if ($previousLineWasDisallowed) {
85 if (!($pendingEmptyLines eq "") && !($previousAllowedLine =~ m/{\s*$/) && !($line =~ m/^\s*}/)) {
86 $pendingEmptyLines = "\n";
88 $pendingEmptyLines = "";
91 print $out $pendingEmptyLines;
92 $pendingEmptyLines = "";
97 # my $line = shift; # ignoring input argument
98 $previousLineWasDisallowed = 1;