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|
#!/usr/local/bin/perl
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#
#
# Copyright 2006 Sun Microsystems, Inc. All rights reserved.
# Use is subject to license terms.
#
#pragma ident "%Z%%M% %I% %E% SMI"
require 5.6.1;
$PNAME = $0;
$PNAME =~ s:.*/::;
$USAGE = "Usage: $PNAME [file ...]\n";
$errs = 0;
sub err
{
my($msg) = @_;
print "$file: $lineno: $msg\n";
$errs++;
}
sub dstyle
{
open(FILE, "$file");
$lineno = 0;
$inclause = 0;
$skipnext = 0;
while (<FILE>) {
$lineno++;
chop;
if ($skipnext) {
$skipnext = 0;
next;
}
#
# Amazingly, some ident strings are longer than 80 characters!
#
if (/^#pragma ident/) {
next;
}
#
# The algorithm to calculate line length from cstyle.
#
$line = $_;
if ($line =~ tr/\t/\t/ * 7 + length($line) > 80) {
# yes, there is a chance.
# replace tabs with spaces and check again.
$eline = $line;
1 while $eline =~
s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e;
if (length($eline) > 80) {
err "line > 80 characters";
}
}
if (/\/\*DSTYLED\*\//) {
$skipnext = 1;
next;
}
if (/^#pragma/) {
next;
}
if (/^#include/) {
next;
}
#
# Before we do any more analysis, we want to prune out any
# quoted strings. This is a bit tricky because we need
# to be careful of backslashed quotes within quoted strings.
# I'm sure there is a very crafty way to do this with a
# single regular expression, but that will have to wait for
# somone with better regex juju that I; we do this by first
# eliminating the backslashed quotes, and then eliminating
# whatever quoted strings are left. Note that we eliminate
# the string by replacing it with "quotedstr"; this is to
# allow lines to end with a quoted string. (If we simply
# eliminated the quoted string, dstyle might complain about
# the line ending in a space or tab.)
#
s/\\\"//g;
s/\"[^\"]*\"/quotedstr/g;
if (/[ \t]$/) {
err "space or tab at end of line";
}
if (/^[\t]+[ ]+[\t]+/) {
err "spaces between tabs";
}
if (/^[\t]* \*/) {
next;
}
if (/^ /) {
err "indented by spaces not tabs";
}
if (/^{}$/) {
next;
}
if (!/^enum/ && !/^\t*struct/ && !/^\t*union/ && !/^typedef/ &&
!/^translator/ && !/^provider/) {
if (/[\w\s]+{/) {
err "left brace not on its own line";
}
if (/{[\w\s]+/) {
err "left brace not on its own line";
}
}
if (!/;$/) {
if (/[\w\s]+}/) {
err "right brace not on its own line";
}
if (/}[\w\s]+/) {
err "right brace not on its own line";
}
}
if (/^}/) {
$inclause = 0;
}
if (!$inclause && /^[\w ]+\//) {
err "predicate not at beginning of line";
}
if (!$inclause && /^\/[ \t]+\w/) {
err "space between '/' and expression in predicate";
}
if (!$inclause && /\w[ \t]+\/$/) {
err "space between expression and '/' in predicate";
}
if (!$inclause && /\s,/) {
err "space before comma in probe description";
}
if (!$inclause && /\w,[\w\s]/ && !/;$/) {
if (!/extern/ && !/\(/ && !/inline/) {
err "multiple probe descriptions on same line";
}
}
if ($inclause && /sizeof\(/) {
err "missing space after sizeof";
}
if ($inclause && /^[\w ]/) {
err "line doesn't begin with a tab";
}
if ($inclause && /,[\w]/) {
err "comma without trailing space";
}
if (/\w&&/ || /&&\w/ || /\w\|\|/ || /\|\|\w/) {
err "logical operator not set off with spaces";
}
#
# We want to catch "i<0" variants, but we don't want to
# erroneously flag translators.
#
if (!/\w<\w+>\(/) {
if (/\w>/ || / >\w/ || /\w</ || /<\w/) {
err "comparison operator not set " .
"off with spaces";
}
}
if (/\w==/ || /==\w/ || /\w<=/ || />=\w/ || /\w!=/ || /!=\w/) {
err "comparison operator not set off with spaces";
}
if (/\w=/ || /=\w/) {
err "assignment operator not set off with spaces";
}
if (/^{/) {
$inclause = 1;
}
}
}
foreach $arg (@ARGV) {
if (-f $arg) {
push(@files, $arg);
} else {
die "$PNAME: $arg is not a valid file\n";
}
}
die $USAGE if (scalar(@files) == 0);
foreach $file (@files) {
dstyle($file);
}
exit($errs != 0);
|
