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