541 lines
16 KiB
Bash
541 lines
16 KiB
Bash
#!/bin/sh -- # This comment tells perl not to loop!
|
||
#
|
||
#***************************************************************************
|
||
#
|
||
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||
#
|
||
# Copyright 2000, 2010 Oracle and/or its affiliates.
|
||
#
|
||
# OpenOffice.org - a multi-platform office productivity suite
|
||
#
|
||
# This file is part of OpenOffice.org.
|
||
#
|
||
# OpenOffice.org is free software: you can redistribute it and/or modify
|
||
# it under the terms of the GNU Lesser General Public License version 3
|
||
# only, as published by the Free Software Foundation.
|
||
#
|
||
# OpenOffice.org is distributed in the hope that it will be useful,
|
||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
# GNU Lesser General Public License version 3 for more details
|
||
# (a copy is included in the LICENSE file that accompanied this code).
|
||
#
|
||
# You should have received a copy of the GNU Lesser General Public License
|
||
# version 3 along with OpenOffice.org. If not, see
|
||
# <http://www.openoffice.org/license.html>
|
||
# for a copy of the LGPLv3 License.
|
||
#
|
||
#***************************************************************************
|
||
|
||
|
||
eval 'exec perl -S $0 "$@"'
|
||
if 0;
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||
#
|
||
# @(#)jstyle 1.2 98/01/08
|
||
#
|
||
# jstyle - check for some common stylistic errors.
|
||
#
|
||
# jstyle is a sort of "lint" for Java coding style.
|
||
#
|
||
# There's a lot this can't check for, like proper
|
||
# indentation of continuation lines. There's also
|
||
# a lot more this could check for.
|
||
#
|
||
# A note to the non perl literate:
|
||
#
|
||
# perl regular expressions are pretty much like egrep
|
||
# regular expressions, with the following special symbols
|
||
#
|
||
# \s any space character
|
||
# \S any non-space character
|
||
# \w any "word" character [a-zA-Z0-9_]
|
||
# \W any non-word character
|
||
# \d a digit [0-9]
|
||
# \D a non-digit
|
||
# \b word boundary (between \w and \W)
|
||
# \B non-word boundary
|
||
#
|
||
#require "getopts.pl";
|
||
# XXX - because some versions of perl can not find the lib directory,
|
||
# we just include this here.
|
||
;# getopts.pl - a better getopt.pl
|
||
|
||
;# Usage:
|
||
;# do Getopts("a:bc"); # -a takes arg. -b & -c not. Sets opt_* as a
|
||
;# # side effect.
|
||
|
||
sub Getopts {
|
||
local($argumentative) = @_;
|
||
local(@args,$_,$first,$rest);
|
||
local($[) = 0;
|
||
local($errs) = 0;
|
||
|
||
@args = split( / */, $argumentative );
|
||
while(($_ = $ARGV[0]) =~ /^-(.)(.*)/) {
|
||
($first,$rest) = ($1,$2);
|
||
$pos = index($argumentative,$first);
|
||
if($pos >= $[) {
|
||
if($args[$pos+1] eq ":") {
|
||
shift(@ARGV);
|
||
if($rest eq "") {
|
||
$rest = shift(@ARGV);
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||
}
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||
eval "\$opt_$first = \$rest;";
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||
}
|
||
else {
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||
eval "\$opt_$first = 1";
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||
if($rest eq "") {
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||
shift(@ARGV);
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||
}
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||
else {
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||
$ARGV[0] = "-$rest";
|
||
}
|
||
}
|
||
}
|
||
else {
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||
print STDERR "Unknown option: $first\n";
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||
++$errs;
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||
if($rest ne "") {
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||
$ARGV[0] = "-$rest";
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||
}
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||
else {
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||
shift(@ARGV);
|
||
}
|
||
}
|
||
}
|
||
$errs == 0;
|
||
}
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||
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||
1;
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||
# end of getopts.pl
|
||
|
||
$usage =
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||
"usage: jstyle [-c] [-h] [-p] [-s] [-t] [-v] [-C] file ...
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-c check continuation line indenting
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-h perform heuristic checks that are sometimes wrong
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||
-p perform some of the more picky checks
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||
-s check for spaces vs. tabs
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||
-t insist on indenting by tabs
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||
-v verbose
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||
-C don't check anything in header block comments
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||
-S print out overall statistics
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||
";
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||
|
||
if (!&Getopts("chpstvCS")) {
|
||
print $usage;
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||
exit 1;
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||
}
|
||
|
||
$check_continuation = $opt_c;
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||
$heuristic = $opt_h;
|
||
$picky = $opt_p;
|
||
$spaces = $opt_s;
|
||
$tabs = $opt_t;
|
||
$verbose = $opt_v;
|
||
$ignore_hdr_comment = $opt_C;
|
||
$statistics = $opt_S;
|
||
|
||
if ($verbose) {
|
||
$fmt = "%s: %d: %s\n%s\n";
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||
} else {
|
||
$fmt = "%s: %d: %s\n";
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||
}
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||
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||
# Note, following must be in single quotes so that \s and \w work right.
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||
$typename = '(int|char|boolean|byte|short|long|float|double)';
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||
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||
if ($#ARGV >= 0) {
|
||
foreach $arg (@ARGV) {
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||
if (!open(STDIN, $arg)) {
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||
printf "%s: can not open\n", $arg;
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||
} else {
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||
&jstyle($arg);
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||
close STDIN;
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||
}
|
||
}
|
||
} else {
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||
&jstyle("<stdin>");
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||
}
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||
|
||
if ($statistics != 0) {
|
||
foreach $key (sort(keys %errcount)) {
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||
printf "%6d %s\n", $errcount{$key}, $key;
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||
}
|
||
printf " -----\n";
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||
printf "%6d Total warnings\n", $tot_errcount;
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||
printf "%6d Lines of code\n", $totlines;
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||
}
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||
|
||
sub err {
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||
if ($statistics == 0) {
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||
printf $fmt, $filename, $., $_[0], $line;
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||
} else {
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||
$msg = $_[0];
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||
$msg =~ s/ \([0-9][0-9]*\)$//;
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||
$errcount{$msg} += 1;
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||
$tot_errcount += 1;
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||
}
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||
}
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||
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||
sub jstyle {
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||
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||
$in_comment = 0;
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||
$in_header_comment = 0;
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||
$in_continuation = 0;
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||
$in_class = 0;
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||
$in_declaration = 0;
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||
$note_level = 0;
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||
$nextok = 0;
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||
$nocheck = 0;
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||
$expect_continuation = 0;
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||
$prev = '';
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||
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||
$filename = $_[0];
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||
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||
line: while (<STDIN>) {
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||
++$totlines;
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||
s/\r?\n$//; # strip return and newline
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||
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||
# save the original line, then remove all text from within
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||
# double or single quotes, we do not want to check such text.
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||
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||
$line = $_;
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||
s/"[^"]*"/\"\"/g;
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||
s/'.'/''/g;
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||
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||
# an /* END JSTYLED */ comment ends a no-check block.
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||
if ($nocheck) {
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||
if (/\/\* *END *JSTYLED *\*\//) {
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||
$nocheck = 0;
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||
} else {
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||
next line;
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||
}
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||
}
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||
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||
# a /*JSTYLED*/ comment indicates that the next line is ok.
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||
if ($nextok) {
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||
if ($okmsg) {
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||
do err($okmsg);
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||
}
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||
$nextok = 0;
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||
$okmsg = 0;
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||
if (/\/\* *JSTYLED.*\*\//) {
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||
/^.*\/\* *JSTYLED *(.*) *\*\/.*$/;
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||
$okmsg = $1;
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||
$nextok = 1;
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||
}
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||
$prev = $line;
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||
next line;
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||
}
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||
|
||
# check length of line.
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||
# first, a quick check to see if there is any chance of being too long.
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||
if ($line =~ tr/\t/\t/ * 7 + length($line) > 100) {
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||
# yes, there is a chance.
|
||
# replace tabs with spaces and check again.
|
||
$eline = $line;
|
||
1 while $eline =~
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||
s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e;
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||
$l = length($eline);
|
||
if (length($eline) > 100) {
|
||
do err("line > 100 characters ($l)");
|
||
}
|
||
}
|
||
# this is the fastest way to check line length,
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||
# but it doesnt work with perl 3.0.
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||
# if ($line =~ tr/\t/\t/ * 7 + length($line) > 80) {
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||
# $pos = $oldp = $p = 0;
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||
# while (($p = index($line, "\t", $p)) >= 0) {
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||
# $pos = ($pos + $p - $oldp + 8) & ~7;
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||
# $oldp = ++$p;
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||
# }
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||
# $pos += length($line) - $oldp;
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||
# if ($pos > 80) {
|
||
# do err("line > 80 characters");
|
||
# }
|
||
# }
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||
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||
# remember whether we expect to be inside a continuation line.
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||
$in_continuation = $expect_continuation;
|
||
|
||
# check for proper continuation line. blank lines
|
||
# in the middle of the
|
||
# continuation do not count.
|
||
# XXX - only check within functions.
|
||
if ($check_continuation && $expect_continuation && $in_class &&
|
||
!/^\s*$/) {
|
||
# continuation line must start with whitespace of
|
||
# previous line, plus either 4 spaces or a tab, but
|
||
# do not check lines that start with a string constant
|
||
# since they are often shifted to the left to make them
|
||
# fit on the line.
|
||
if (!/^$continuation_indent \S/ &&
|
||
!/^$continuation_indent\t\S/ && !/^\s*"/) {
|
||
do err("continuation line improperly indented");
|
||
}
|
||
$expect_continuation = 0;
|
||
}
|
||
|
||
# a /* BEGIN JSTYLED */ comment starts a no-check block.
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||
if (/\/\* *BEGIN *JSTYLED *\*\//) {
|
||
$nocheck = 1;
|
||
}
|
||
|
||
# a /*JSTYLED*/ comment indicates that the next line is ok.
|
||
if (/\/\* *JSTYLED.*\*\//) {
|
||
/^.*\/\* *JSTYLED *(.*) *\*\/.*$/;
|
||
$okmsg = $1;
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||
$nextok = 1;
|
||
}
|
||
if (/\/\/ *JSTYLED/) {
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||
/^.*\/\/ *JSTYLED *(.*)$/;
|
||
$okmsg = $1;
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||
$nextok = 1;
|
||
}
|
||
|
||
# is this the beginning or ending of a class?
|
||
if (/^(public\s+)*\w(class|interface)\s/) {
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||
$in_class = 1;
|
||
$in_declaration = 1;
|
||
$prev = $line;
|
||
next line;
|
||
}
|
||
if (/^}\s*(\/\*.*\*\/\s*)*$/) {
|
||
$in_class = 0;
|
||
$prev = $line;
|
||
next line;
|
||
}
|
||
|
||
if (!$spaces) {
|
||
# strip trailing spaces
|
||
s/\s*$//;
|
||
}
|
||
|
||
# does this looks like the start of a block comment?
|
||
if (/^\s*\/\*(\*|)$/) {
|
||
if (!/^(\t| )*\/\*(\*|)$/) {
|
||
do err("block comment not indented properly");
|
||
}
|
||
$in_comment = 1;
|
||
s/\/\*(\*|)/ /;
|
||
$comment_prefix = $_;
|
||
if ($comment_prefix eq " ") {
|
||
$in_header_comment = 1;
|
||
}
|
||
$prev = $line;
|
||
next line;
|
||
}
|
||
if (/^\s*\/\*./ && !/^\s*\/\*\*$/ && !/^\s*\/\*.*\*\//) {
|
||
do err("improper first line of block comment");
|
||
# it's a bad one, but it still is one.
|
||
# avoid ripple effect of not recognizing this.
|
||
if (!/^(\t| )*\/\*(\*|)/) {
|
||
do err("block comment not indented properly");
|
||
}
|
||
$in_comment = 1;
|
||
s/\/\*.*/ /;
|
||
$comment_prefix = $_;
|
||
if ($comment_prefix eq " ") {
|
||
$in_header_comment = 1;
|
||
}
|
||
$prev = $line;
|
||
next line;
|
||
}
|
||
# are we still in the block comment?
|
||
if ($in_comment && !/^$comment_prefix\*/) {
|
||
# assume out of comment
|
||
$in_comment = 0;
|
||
$in_header_comment = 0;
|
||
}
|
||
|
||
if ($in_header_comment && $ignore_hdr_comment) {
|
||
$prev = $line;
|
||
next line;
|
||
}
|
||
|
||
# check for errors that might occur in comments and in code.
|
||
|
||
# allow spaces to be used to draw pictures in header comments.
|
||
if ($spaces && /[^ ] / && !/".* .*"/ && !$in_header_comment) {
|
||
do err("spaces instead of tabs");
|
||
}
|
||
if ($tabs && /^ / && !/^ \*[ \t\/]/ && !/^ \*$/ &&
|
||
(!/^ \w/ || $in_class != 0)) {
|
||
do err("indent by spaces instead of tabs");
|
||
}
|
||
if (!$in_comment && (/^(\t )* {1,3}\S/ || /^(\t )* {5,7}\S/) &&
|
||
!(/^\s*[-+|&\/?:=]/ || ($prev =~ /,\s*$/))) {
|
||
do err("indent not a multiple of 4");
|
||
}
|
||
if ($spaces && /\s$/) {
|
||
do err("space or tab at end of line");
|
||
}
|
||
if (0) {
|
||
if (/^[\t]+ [^ \t\*]/ || /^[\t]+ \S/ || /^[\t]+ \S/) {
|
||
do err("continuation line not indented by 4 spaces");
|
||
}
|
||
}
|
||
if (/[^ \t(]\/\*/ && !/\w\(\/\*.*\*\/\);/) {
|
||
do err("comment preceded by non-blank");
|
||
}
|
||
if ($spaces && /\t[ ]+\t/) {
|
||
do err("spaces between tabs");
|
||
}
|
||
if ($spaces && / [\t]+ /) {
|
||
do err("tabs between spaces");
|
||
}
|
||
|
||
if ($in_comment) { # still in comment
|
||
$prev = $line;
|
||
next line;
|
||
}
|
||
|
||
if ((/\/\*\S/ && !/\/\*\*/) || /\/\*\*\S/) {
|
||
do err("missing blank after open comment");
|
||
}
|
||
if (/\S\*\//) {
|
||
do err("missing blank before close comment");
|
||
}
|
||
# allow // at beginnging of line, often used to comment out code
|
||
if (/.\/\/\S/) { # C++ comments
|
||
do err("missing blank after start comment");
|
||
}
|
||
# check for unterminated single line comments.
|
||
if (/\S.*\/\*/ && !/\S.*\/\*.*\*\//) {
|
||
do err("unterminated single line comment");
|
||
}
|
||
|
||
# delete any comments and check everything else.
|
||
s/\/\*.*\*\///g;
|
||
s/\/\/.*$//; # C++ comments
|
||
|
||
# delete any trailing whitespace; we have already checked for that.
|
||
s/\s*$//;
|
||
|
||
# following checks do not apply to text in comments.
|
||
|
||
# if it looks like an operator at the end of the line, and it is
|
||
# not really the end of a comment (...*/), and it is not really
|
||
# a label (done:), and it is not a case label (case FOO:),
|
||
# or we are not in a function definition (ANSI C style) and the
|
||
# operator is a "," (to avoid hitting "int\nfoo(\n\tint i,\n\tint j)"),
|
||
# or we are in a function and the operator is a
|
||
# "*" (to avoid hitting on "char*\nfunc()").
|
||
if ((/[-+|&\/?:=]$/ && !/\*\/$/ && !/^\s*\w*:$/ &&
|
||
!/^\s\s*case\s\s*\w*:$/) ||
|
||
/,$/ ||
|
||
($in_class && /\*$/)) {
|
||
$expect_continuation = 1;
|
||
if (!$in_continuation) {
|
||
/^(\s*)\S/;
|
||
$continuation_indent = $1;
|
||
}
|
||
}
|
||
if (/[^<>\s][!<>=]=/ || /[^<>][!<>=]=\S/ ||
|
||
(/[^->]>[^=>\s]/ && !/[^->]>$/) || (/[^<]<[^=<\s]/ && !/[^<]<$/) ||
|
||
/[^<\s]<[^<]/ || /[^->\s]>[^>]/) {
|
||
do err("missing space around relational operator");
|
||
}
|
||
if (/\S>>=/ || /\S<<=/ || />>=\S/ || /<<=\S/ || /\S[-+*\/&|^%]=/ ||
|
||
(/[^-+*\/&|^%!<>=\s]=[^=]/ && !/[^-+*\/&|^%!<>=\s]=$/) ||
|
||
(/[^!<>=]=[^=\s]/ && !/[^!<>=]=$/)) {
|
||
do err("missing space around assignment operator");
|
||
}
|
||
if (/[,;]\S/ && !/\bfor \(;;\)/) {
|
||
do err("comma or semicolon followed by non-blank");
|
||
}
|
||
# allow "for" statements to have empty "while" clauses
|
||
if (/\s[,;]/ && !/^[\t]+;$/ && !/^\s*for \([^;]*; ;[^;]*\)/) {
|
||
do err("comma or semicolon preceded by blank");
|
||
}
|
||
if (0) {
|
||
if (/^\s*(&&|\|\|)/) {
|
||
do err("improper boolean continuation");
|
||
}
|
||
}
|
||
if ($picky && /\S *(&&|\|\|)/ || /(&&|\|\|) *\S/) {
|
||
do err("more than one space around boolean operator");
|
||
}
|
||
if (/\b(for|if|while|switch|return|case|catch|synchronized)\(/) {
|
||
do err("missing space between keyword and paren");
|
||
}
|
||
if (/(\b(for|if|while|switch|return|catch|synchronized)\b.*){2,}/) {
|
||
# multiple "case" allowed
|
||
do err("more than one keyword on line");
|
||
}
|
||
if (/\b(for|if|while|switch|return|case|catch|synchronized)\s\s+\(/ &&
|
||
!/^#if\s+\(/) {
|
||
do err("extra space between keyword and paren");
|
||
}
|
||
# try to detect "func (x)" but not "if (x)" or
|
||
# "int (*func)();"
|
||
if (/\w\s\(/) {
|
||
$s = $_;
|
||
# strip off all keywords on the line
|
||
s/\b(for|if|while|switch|return|case|catch|synchronized)\s\(/XXX(/g;
|
||
#s/\b($typename|void)\s+\(+/XXX(/og;
|
||
if (/\w\s\(/) {
|
||
do err("extra space between function name and left paren");
|
||
}
|
||
$_ = $s;
|
||
}
|
||
if (/\(\s/) {
|
||
do err("whitespace after left paren");
|
||
}
|
||
# allow "for" statements to have empty "continue" clauses
|
||
if (/\s\)/ && !/^\s*for \([^;]*;[^;]*; \)/) {
|
||
do err("whitespace before right paren");
|
||
}
|
||
if (/^\s*\(void\)[^ ]/) {
|
||
do err("missing space after (void) cast");
|
||
}
|
||
if (/\S{/ && !/{{/) {
|
||
do err("missing space before left brace");
|
||
}
|
||
if ($in_class && /^\s+{/ && ($prev =~ /\)\s*$/)) {
|
||
do err("left brace starting a line");
|
||
}
|
||
if (/}(else|while)/) {
|
||
do err("missing space after right brace");
|
||
}
|
||
if (/}\s\s+(else|while)/) {
|
||
do err("extra space after right brace");
|
||
}
|
||
if (/\b$typename\*/o) {
|
||
do err("missing space between type name and *");
|
||
}
|
||
if ($heuristic) {
|
||
# cannot check this everywhere due to "struct {\n...\n} foo;"
|
||
if ($in_class && !$in_declaration &&
|
||
/}./ && !/}\s+=/ && !/{.*}[;,]$/ && !/}(\s|)*$/ &&
|
||
!/} (else|while)/ && !/}}/) {
|
||
do err("possible bad text following right brace");
|
||
}
|
||
# cannot check this because sub-blocks in
|
||
# the middle of code are ok
|
||
if ($in_class && /^\s+{/) {
|
||
do err("possible left brace starting a line");
|
||
}
|
||
}
|
||
if (/^\s*else\W/) {
|
||
if ($prev =~ /^\s*}$/) {
|
||
$str = "else and right brace should be on same line";
|
||
if ($statistics == 0) {
|
||
printf $fmt, $filename, $., $str, $prev;
|
||
if ($verbose) {
|
||
printf "%s\n", $line;
|
||
}
|
||
} else {
|
||
$errcount{$str} += 1;
|
||
$tot_errcount += 1;
|
||
}
|
||
}
|
||
}
|
||
$prev = $line;
|
||
}
|
||
|
||
if ($picky && $prev eq "") {
|
||
do err("last line in file is blank");
|
||
}
|
||
|
||
}
|