139 lines
4.4 KiB
Perl
Executable File
139 lines
4.4 KiB
Perl
Executable File
#!/usr/bin/perl -w
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if ($ARGV[0] =~ /^-/) {
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$lang = shift @ARGV;
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$C = ($lang eq '-C');
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# $TXT = ($lang eq '-txt');
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}
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for $fn (@ARGV) {
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open(F, "$fn");
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$lastnil = 0;
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$lastline = "";
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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:$.\n";
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}
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## Warn about markers that don't have a space in front of them
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if (/^[a-zA-Z_][a-zA-Z_0-9]*:/) {
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print "nosplabel:$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 ($C && /\s(?:if|while|for|switch)\(/) {
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print " KW(:$fn:$.\n";
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}
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## Warn about #else #if instead of #elif.
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if (($lastline =~ /^\# *else/) and ($_ =~ /^\# *if/)) {
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print " #else#if:$fn:$.\n";
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}
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## Warn about some K&R violations
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if (/^\s+\{/ and $lastline =~ /^\s*(if|while|for|else if)/ and
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$lastline !~ /\{$/) {
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print "non-K&R {:$fn:$.\n";
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}
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if (/^\s*else/ and $lastline =~ /\}$/) {
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print " }\\nelse:$fn:$.\n";
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}
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$lastline = $_;
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## Warn about unnecessary empty lines.
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if ($lastnil && /^\s*}\n/) {
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print " UnnecNL:$fn:$.\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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$lastnil = 0;
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}
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## Terminals are still 80 columns wide in my world. I refuse to
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## accept double-line lines.
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if (/^.{80}/) {
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print " Wide:$fn:$.\n";
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}
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### Juju to skip over comments and strings, since the tests
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### we're about to do are okay there.
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if ($C) {
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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 unquoted 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\(([A-Z]*)/) {
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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 "elsif" and $1 ne "WINAPI" and $2 ne "WINAPI" and
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$1 ne "void" and $1 ne "__attribute__" and $1 ne "op") {
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print " fn ():$fn:$.\n";
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}
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}
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## Warn about functions not declared at start of line.
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if ($in_func_head ||
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($fn !~ /\.h$/ && /^[a-zA-Z0-9_]/ &&
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! /^(?:const |static )*(?:typedef|struct|union)[^\(]*$/ &&
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! /= *\{$/ && ! /;$/)) {
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if (/.\{$/){
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print "fn() {:$fn:$.\n";
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$in_func_head = 0;
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} elsif (/^\S[^\(]* +\**[a-zA-Z0-9_]+\(/) {
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$in_func_head = -1; # started with tp fn
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} elsif (/;$/) {
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$in_func_head = 0;
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} elsif (/\{/) {
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if ($in_func_head == -1) {
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print "tp fn():$fn:$.\n";
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}
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$in_func_head = 0;
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}
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}
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}
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}
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if (! $lastnil) {
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print " EOL\@EOF:$fn:$.\n";
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}
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close(F);
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}
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