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#!/usr/bin/perl -w
for $fn (@ARGV) {
open(F, "$fn");
$lastnil = 0;
$incomment = 0;
while (<F>) {
## Warn about windows-style newlines.
if (/\r/) {
print " CR:$fn:$.\n";
}
## Warn about tabs.
if (/\t/) {
print " TAB:$fn:$.\n";
}
## Warn about trailing whitespace.
if (/ +$/) {
print "Space\@EOL:$fn:$.\n";
}
## Warn about control keywords without following space.
if (/\s(?:if|while|for|switch)\(/) {
print " KW(:$fn:$.\n";
}
## Warn about multiple empty lines.
if ($lastnil && /^$/) {
print " DoubleNL:$fn:$.\n";
} elsif (/^$/) {
$lastnil = 1;
} else {
$lastnil = 0;
}
### Juju to skip over comments and strings, since the tests
### we're about to do are okay there.
if ($incomment) {
if (m!\*/!) {
s!.*?\*/!!;
$incomment = 0;
} else {
next;
}
}
if (m!/\*.*?\*/!) {
s!/\*.*?\*/!!;
} elsif (m!/\*!) {
s!/\*!!;
$incomment = 1;
next;
}
s!"(?:[^\"]+|\\.)*"!!g;
next if /^\#/;
## Warn about C++-style comments.
if (m!//!) {
# print " //:$fn:$.\n";
s!//.*!!;
}
## Warn about braces preceded by non-space.
if (/([^\s])\{/) {
print " $1\{:$fn:$.\n";
}
## Warn about function calls with space before parens.
if (/(\w+)\s\(/) {
if ($1 ne "if" and $1 ne "while" and $1 ne "for" and
$1 ne "switch" and $1 ne "return" and $1 ne "int" and
$1 ne "void" and $1 ne "__attribute__") {
print " fn ():$fn:$.\n";
}
}
## Warn about multiple internal spaces.
#if (/\S\s{2,}[^\s\\]/) {
# print " X X:$fn:$.\n";
#}
## Warn about { with stuff after.
#s/\s+$//;
#if (/\{[^\}\\]+$/) {
# print " {X:$fn:$.\n";
#}
}
close(F);
}
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