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#!/usr/bin/perl -w
# Author: Alexander Schwartz (alexander.schwartz@gmx.net)
# Licence: GPL
# First version: 2001-10-15
# Originally written for Drupal (http://www.drupal.org/) to ensure stylish
# code. This program tries to show as many improvements as possible with
# no false positives.
# $id$
$comment = 0;
$program = 0;
if ($ARGV[0] eq '-debug') {
$debug=1;
shift (@ARGV);
}
else {
$debug=0;
}
while (<>) {
$org=$_;
s/\\["']//g;
# please don't use nested comments for now... thanks!
# handles comments // style, but don't mess with http://
s/\/\/[^:]*//;
# handles comments /**/ on a single line
s/\/\*.*\*\///g;
# handles comments /**/ over several lines
if ($comment == 1) {
if (s/.*\*\///) {
$comment = 0;
}
else {
next;
}
}
if (s/\/\*.*//) {
$comment = 1;
}
if (/^\s*#/) {
next;
}
if (s/<\?php//) {
$program = 1;
}
if (/\?>/) {
$program = 0;
}
# enfoce "bar". foo() ."bar" syntax
if (/^("[^"]*"|[^"])*("[^"]*")\.[^ ]/ && $program) {
$msg = "'\".' -> '\". '";
}
elsif (/^("[^"]*"|[^"])*("[^"]*")\s+\./ && $program) {
$msg = "'\" .' -> '\".'";
}
# enfoce "bar". foo() ."bar" syntax
elsif (/^("[^"]*"|[^"])*[^ "]\.("[^"]*")/ && $program) {
$msg = "'.\"' -> '.\"'";
}
elsif (/^("[^"]*"|[^"])*[^ "]\.\s+("[^"]*")/ && $program) {
$msg = "'. \"' -> '.\"'";
}
# XHTML requires closing tag
elsif (/[<]br[>]/i) {
$msg = "'<b"."r>' -> '<b"."r />'";
}
# XHTML compatibility mode suggests a blank before /
# i.e. <br />
elsif (/<[a-z][^>]*[^ >]\/>/i) {
$msg = "'<foo/".">' -> '<foo />'";
}
# we write '{' on the same line, not on the next
elsif (/^\s*{/ && $program) {
$msg = "take '{' to previous line";
}
elsif (/function ([a-zA-Z_][a-zA-Z_0-9]*[A-Z][a-zA-Z_0-9]*)\(/) {
$msg = "no mixedcase, use lowercase and _";
}
elsif (/<[\/]*[A-Z]+[^>]*>/) {
$msg = "XHTML demands tags to be lowercase";
}
# trying to recognize splitted lines
# there are only a few valid last characters in programming mode,
# only sometimes it is ( if you use if/else with a single statement
# from here on we need no more strings
while (s/^([^"]*)"[^"]*"/$1#/) {};
while (s/^([^']*)'[^']*'/$1#/) {};
# it should be 'if (' all the time
if (/(^|[^a-zA-Z])(if|else|elseif|while|foreach|switch|return|for)\(/) {
$msg = "'$1(' -> '$1 ('";
}
elsif (/[^;{}:\s\n]\s*\n*$/ && $program && !/^[\s}]*(if|else)/) {
$msg = "don't split lines";
}
elsif (/\}\s*else/) {
$msg = "'} else' -> '}\\nelse'";
}
elsif (/[^{\s\n]\s*\n*$/ && $program && /^\s*(if|else)/) {
$msg = "every if/else needs a { at eol";
}
elsif (/([\(\[]) / && $program) {
$msg = "'$1 ' -> '$1'";
}
elsif (/ ([\)\]])/ && $program) {
$msg = "' $1' -> '$1'";
}
# but no brackets
elsif (/([a-z-A-Z_][a-zA-Z0-9_-]*)\s+\(/ && $program) {
if ($1 ne "switch" and $1 ne "if" and $1 ne "while" and $1 ne "foreach" and $1 ne "return" and $1 ne "for" and $1 ne "elseif") {
$msg = "'$1 (' -> '$1('";
}
}
# there should be a space before '{'
if (/[^ ][{]/ && $program) {
$msg = "missing space before '{'";
}
# there should be a space after ','
elsif (/[,][^ ]/ && $program) {
$msg = "missing space after ','";
}
# spaces before and after, only foreach may use $foo=>bar
elsif (/[^ =](==|\.=|=>|=|\|\|)[^ =>]/ && $program && !/foreach/) {
$msg = "'$1' -> ' $1 '"
}
if (defined $msg) {
if ($debug==0) {
print $ARGV .":". $. .": $msg : ". $org;
}
undef $msg;
}
elsif ($debug==1) {
print $org;
}
} continue {
close ARGV if eof;
}
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