#!/usr/bin/perl -w

eval 'exec /usr/bin/perl -w -S $0 ${1+"$@"}'
    if 0; # not running under some shell
###############################################################################
# Sanity check plugin for the Krazy project.                                  #
# Copyright (C) 2006-2010 by Allen Winter <winter@kde.org>                    #
#                                                                             #
# This program is free software; you can redistribute it and/or modify        #
# it under the terms of the GNU General Public License as published by        #
# the Free Software Foundation; either version 2 of the License, or           #
# (at your option) any later version.                                         #
#                                                                             #
# This program 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 General Public License for more details.                                #
#                                                                             #
# You should have received a copy of the GNU General Public License along     #
# with this program; if not, write to the Free Software Foundation, Inc.,     #
# 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.               #
#                                                                             #
###############################################################################

# Tests KDE source for adherence to a coding style

# Supports these environment variables:
#  KRAZY_STYLE_CPPSTYLE: a predefined style, currently available styles are "kde" and "pim"
#  KRAZY_STYLE_OFFSET: basic indentation level, usually a small integer like 2 or 4
#  KRAZY_STYLE_LINEMAX: max number of chars per line allowed (defaults to 100)

# Program options:
#   --help:          print one-line help message and exit
#   --version:       print one-line version information and exit
#   --priority:      report issues of the specified priority only
#   --strict:        report issues with the specified strictness level only
#   --explain:       print an explanation with solving instructions
#   --installed      file is to be installed
#   --quiet:         suppress all output messages
#   --verbose:       print the offending content

# Exits with status=0 if test condition is not present in the source;
# else exits with the number of failures encountered.

use strict;
use Env qw (KRAZY_STYLE_CPPSTYLE KRAZY_STYLE_OFFSET KRAZY_STYLE_LINEMAX);
use Cwd 'abs_path';
use Tie::IxHash;
use FindBin qw($Bin);
use lib "$Bin/../../../../lib";
use Krazy::Utils;

my($Prog) = "style";
my($Version) = "1.2";

&parseArgs();

&Help() if &helpArg();
&Version() if &versionArg();
&Explain() if &explainArg();
if ($#ARGV != 0){ &Help(); Exit 0; }


# has of all issues we need to keep track of
tie my(%Issues), "Tie::IxHash";

# Check Condition
my($f) = $ARGV[0];

if ($f =~ m/\.cpp$/ || $f =~ m/\.cc$/ || $f =~ m/\.cxx$/ ||
    $f =~ m/\.h$/ || $f =~ m/\.hxx$/ ) {
  open(F, "$f") || die "Couldn't open $f";
} else {
  print "okay\n" if (!&quietArg());
  Exit 0;
}

$KRAZY_STYLE_LINEMAX = 100 if ( !$KRAZY_STYLE_LINEMAX );
if ( !$KRAZY_STYLE_CPPSTYLE ) {
  if ( abs_path($f) =~ m/kdepim/ ) {
    $KRAZY_STYLE_CPPSTYLE = "pim";
  } else {
    $KRAZY_STYLE_CPPSTYLE = "kde";
  }
}
if ( !$KRAZY_STYLE_OFFSET ) {
  if ( $KRAZY_STYLE_CPPSTYLE eq "pim" ) {
    $KRAZY_STYLE_OFFSET = 2;
  } else {
    $KRAZY_STYLE_OFFSET = 4;
  }
}

#open file and slurp it in
open(F, "$f") || die "Couldn't open $f";
my(@data_lines) = <F>;
close(F);

#get all the c-style comments from the file
my($data)="@data_lines";
my(@comments) = ($data =~ /\/\*.*?\*\//gs);

#for each comment, remove everything but the linebreaks, so
#our line numbering report does not get screwed up.
foreach my $comment ( @comments ) {
        my($fixed_comment) = $comment;
        $fixed_comment =~ s/[^\n]//gs;
        $fixed_comment =~ s/\n/\n/gs;
        $data =~ s/\Q$comment/$fixed_comment/s;
}

#put it back into an array so we can iterate over it
my(@lines) = split(/\n/, $data);

my($cnt) = 0;
my($linecnt) = 0;
my($line);
my($tline);
my($pline);
my($lstr) = "";
my($lline) = "";
my($indent,$lindent) = (0,0);
&initIssues();
foreach $line (@lines) {
  chomp($line);

  if ($line =~ m+//.*[Kk]razy:excludeall=.*$Prog+ ||
      $line =~ m+//.*[Kk]razy:skip+) {
    print "okay\n" if (!&quietArg());
    Exit 0;
  }
  next if ($line =~ m+//.*[Kk]razy:exclude=.*$Prog+);

  $line =~ s/^\ //;   #the comment stripper leaves a leading space
  $linecnt++;

  #skip preprocessor directives
  next if ($line =~ m/#[[:space:]]*if/);
  next if ($line =~ m/#[[:space:]]*else/);
  next if ($line =~ m/#[[:space:]]*elif/);
  next if ($line =~ m/#[[:space:]]*endif/);
  next if ($line =~ m/#[[:space:]]*include/);
  next if ($line =~ m/#[[:space:]]*define/);
  next if ($line =~ m/#[[:space:]]*undef/);
  next if ($line =~ m/#[[:space:]]*warning/);
  next if ($line =~ m/#[[:space:]]*error/);

  $tline = $line;
  if ($line =~ m+//+ && $line !~ m+".*//.*"+) {
    $line =~ s+//.*++;  #strip C++ comments
    $line =~ s/\s+$//;  #strip trailing whitespace
  }

  $line =~ s+\\\s*$++; #strip continuation
  $line =~ s/\s+$//;  #strip trailing whitespace

  $pline = $line;
  $pline =~ s/".*"/""/g;
  $pline =~ s/'.'/''/g;
  $pline =~ s/SIGNAL\(.*\(.*\).*\)/SIGNAL\(\)/g;
  $pline =~ s/SLOT\(.*\(.*\).*\)/SLOT\(\)/g;
  $pline =~ s/\(\*[[:alnum:]_>-]*\)//g;
  $pline =~ s/\([[:alnum:]_>-]*\)//g;
  $pline =~ s/\([[:digit:]]*\)//g;
  $pline =~ s/\(unsigned\)//g;
  $pline =~ s/\(unsigned int\)//g;
  $pline =~ s/\(unsigned char\)//g;
  $pline =~ s/\(signed char\)//g;
  $pline =~ s/\(signed char \*\)//g;
  $pline =~ s/\(const char \*\)//g;
  $pline =~ s/\(int\)//g;
  $pline =~ s/\(uint\)//g;
  $pline =~ s/\(float\)//g;
  $pline =~ s/\(Qt::[[:alnum:]]*\)//g;
  $pline =~ s/\([[:alnum:]]*\s*\*\)//g;

  #major hacks, but I'm lazy right now
  $pline =~ s/\(LDAPMod \*\*\)//g;
  $pline =~ s/\(LDAPControl \*\*\)//g;
  $pline =~ s/\(BerValue \*\*\)//g;
  $pline =~ s/\(sasl_conn_t \*\)//g;

  if ($KRAZY_STYLE_CPPSTYLE eq "pim" &&
      $pline =~ m/\(/ && $pline =~ m/\([[:alnum:]"'\(]/ || $line =~ m/\( {2,}/) {
    $Issues{'PARENSPACE'}{'count'}++;
    if ($Issues{'PARENSPACE'}{'count'} == 1) {
      $Issues{'PARENSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'PARENSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (missing 1 space after '\(') => $line\n" if (&verboseArg());
  }

  if ($KRAZY_STYLE_CPPSTYLE eq "kde" &&
      $pline =~ m/\(/ && $line =~ m/\(\s/) {
    $Issues{'PARENNOSPACE'}{'count'}++;
    if ($Issues{'PARENNOSPACE'}{'count'} == 1) {
      $Issues{'PARENNOSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'PARENNOSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (no space after '\(') => $line\n" if (&verboseArg());
  }

  if ($KRAZY_STYLE_CPPSTYLE eq "pim" &&
      $pline =~ m/\)/ && $pline =~ m/[[:alnum:]"'\)]\)/ || $line =~ m/ {2,}\)/) {
    $Issues{'SPACEPAREN'}{'count'}++;
    if ($Issues{'SPACEPAREN'}{'count'} == 1) {
      $Issues{'SPACEPAREN'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'SPACEPAREN'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (put 1 space before '\)') => $line\n" if (&verboseArg());
  }

  if ($KRAZY_STYLE_CPPSTYLE eq "kde" &&
      $pline =~ m/\)/ && $line =~ m/\s\)/) {
    $Issues{'NOSPACEPAREN'}{'count'}++;
    if ($Issues{'NOSPACEPAREN'}{'count'} == 1) {
      $Issues{'NOSPACEPAREN'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'NOSPACEPAREN'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (no space before '\)') => $line\n" if (&verboseArg());
  }

  if ($line =~ m/\)const/ || $line =~ m/\) {2,}const/) {
    $Issues{'SPACECONST'}{'count'}++;
    if ($Issues{'SPACECONST'}{'count'} == 1) {
      $Issues{'SPACECONST'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'SPACECONST'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (1 space before 'const') => $line\n" if (&verboseArg());
  }

  if ($pline =~ m/,[[:alnum:]]/ || $line =~ m/, {2,}/) {
    if ($line !~ m/,[[:space:]]*$/ && $line !~ m/<.*,.*>/) {
      $Issues{'COMMASPACE'}{'count'}++;
      if ($Issues{'COMMASPACE'}{'count'} == 1) {
	$Issues{'COMMASPACE'}{'lines'} = "line\#" . $linecnt;
      } else {
	$Issues{'COMMASPACE'}{'lines'} .= "," . $linecnt;
      }
      print "$linecnt (no space after ',') => $line\n" if (&verboseArg());
    }
  }

  if ($line =~ m/[[:space:]],/) {
    $Issues{'SPACECOMMA'}{'count'}++;
    if ($Issues{'SPACECOMMA'}{'count'} == 1) {
      $Issues{'SPACECOMMA'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'SPACECOMMA'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (no space before ',') => $line\n" if (&verboseArg());
  }

  if ($pline =~ m/[[:alnum:]]\*/ || $pline =~ m/[[:alnum:]]&/) {
    if ($pline !~ m/\*>/ && $pline !~ m/operator\*/) {
      $Issues{'STARSPACE'}{'count'}++;
      if ($Issues{'STARSPACE'}{'count'} == 1) {
	$Issues{'STARSPACE'}{'lines'} = "line\#" . $linecnt;
      } else {
	$Issues{'STARSPACE'}{'lines'} .= "," . $linecnt;
      }
      print "$linecnt (space after '*' or '&') => $line\n" if (&verboseArg());
    }
  }

  if ($pline =~ m/\(/ && $line =~ m/[[:space:]]if[[:space:]]*\(/ && $line !~ m/\{$/ && $line !~ m/\(\s*$/ && $line !~ m/,\s*$/ && $line !~ m/\.\s*$/ && !&endOkCond($line)) {
    if (!&searchForward('\)\s*{\s*$',$linecnt,2)) {
      $Issues{'IFBRACE'}{'count'}++;
      if ($Issues{'IFBRACE'}{'count'} == 1) {
        $Issues{'IFBRACE'}{'lines'} = "line\#" . $linecnt;
      } else {
        $Issues{'IFBRACE'}{'lines'} .= "," . $linecnt;
      }
      print "$linecnt (missing if '{')=> $line\n" if (&verboseArg());
    }
  }

  if ($line =~ m/[[:space:]]*else[[:space:]]*/  && $line !~ m/else if/ && $line !~ m/} else {/) {
    $Issues{'ELSEBRACE'}{'count'}++;
    if ($Issues{'ELSEBRACE'}{'count'} == 1) {
      $Issues{'ELSEBRACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'ELSEBRACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt ('}' else '{')=> $line\n" if (&verboseArg());
  }

  if (($line =~ m/[[:space:]]*for[[:space:]]\(/ || $line =~ m/[[:space:]]*foreach[[:space:]]\(/) && $line !~ m/\{$/ && $line !~ m/\;$/) {
    $Issues{'FORBRACE'}{'count'}++;
    if ($Issues{'FORBRACE'}{'count'} == 1) {
      $Issues{'FORBRACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'FORBRACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (missing for '{')=> $line\n" if (&verboseArg());
  }

  if ($line =~ m/[[:space:]]*while[[:space:]]\(/ && $line !~ m/\{$/ && !&endOkCond($line) && $line !~ m/\;$/) {
    if (!&searchForward('\)\s*{\s*$',$linecnt,5) &&
        $line !~ m/\}[[:space:]]*while/) { # exclude the do-while
      $Issues{'WHILEBRACE'}{'count'}++;
      if ($Issues{'WHILEBRACE'}{'count'} == 1) {
	$Issues{'WHILEBRACE'}{'lines'} = "line\#" . $linecnt;
      } else {
	$Issues{'WHILEBRACE'}{'lines'} .= "," . $linecnt;
      }
      print "$linecnt (missing while '{')=> $line\n" if (&verboseArg());
    }
  }

  if ($line =~ m/[[:space:]]*switch[[:space:]]\(/ && $line !~ m/\{$/) {
    $Issues{'SWITCHBRACE'}{'count'}++;
    if ($Issues{'SWITCHBRACE'}{'count'} == 1) {
      $Issues{'SWITCHBRACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'SWITCHBRACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (missing switch '{')=> $line\n" if (&verboseArg());
  }

  if ($line =~ m/^[[:space:]]*enum[[:space:]]/ && $line !~ m/\{$/) {
    $Issues{'ENUMBRACE'}{'count'}++;
    if ($Issues{'ENUMBRACE'}{'count'} == 1) {
      $Issues{'ENUMBRACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'ENUMBRACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (missing enum '{')=> $line\n" if (&verboseArg());
  }

  if ($line =~ m/[[:space:]]*case[[:space:]].*:/ && $line =~ m/\{$/) {
    $Issues{'CASEBRACE'}{'count'}++;
    if ($Issues{'CASEBRACE'}{'count'} == 1) {
      $Issues{'CASEBRACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'CASEBRACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (put {' on line after case:)=> $line\n" if (&verboseArg());
  }

  if ($line =~ m/[[:space:]]*default[[:space:]].*:/ && $line =~ m/\{$/) {
    $Issues{'CASEBRACE'}{'count'}++;
    if ($Issues{'CASEBRACE'}{'count'} == 1) {
      $Issues{'CASEBRACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'CASEBRACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (put {' on line after default:)=> $line\n" if (&verboseArg());
  }

  if ($pline =~ m/[[:alnum:]]::[[:alnum:]].*\(.*{/) {
    if ($line !~ m/,/ && $line !~ m/\(\)->/ && !&isCond($line) && !&isCond($lline) && !&isLoop($line) && !&isLoop($lline) && $lline !~ m/,$/) {
      if ($line !~ m/\{\s*\}$/) {
	$Issues{'FUNCBRACE'}{'count'}++;
	if ($Issues{'FUNCBRACE'}{'count'} == 1) {
	  $Issues{'FUNCBRACE'}{'lines'} = "line\#" . $linecnt;
	} else {
	  $Issues{'FUNCBRACE'}{'lines'} .= "," . $linecnt;
	}
	print "$linecnt (put '{' on line after the 'class' or function)=> $line\n" if (&verboseArg());
      }
    }
  }

  if ($line =~ m/^[[:space:]]*class/ && $line =~ m/\{$/) {
    $Issues{'FUNCBRACE'}{'count'}++;
    if ($Issues{'FUNCBRACE'}{'count'} == 1) {
      $Issues{'FUNCBRACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'FUNCBRACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (put '{' on line after 'class')=> $line\n" if (&verboseArg());
  }

  if ($line =~ m/^[[:space:]]if\(/ || $line =~ m/^[[:space:]]*for\(/ || $line =~ m/^[[:space:]]*while\(/ || $line =~ m/^[[:space:]]*foreach\(/) {
    $Issues{'CONDSPACE'}{'count'}++;
    if ($Issues{'CONDSPACE'}{'count'} == 1) {
      $Issues{'CONDSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'CONDSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (space before '(')=> $line\n" if (&verboseArg());
  }

  if ($pline =~ m/==/ && $line =~ m/==/ && $line !~ m/[[:space:]]{1}==[[:space:]]{1}/ && $line !~ m/==[[:space:]]*\(/ && $line !~ m/[[:space:]]{1}==$/) {
    $Issues{'EQUALSPACE'}{'count'}++;
    if ($Issues{'EQUALSPACE'}{'count'} == 1) {
      $Issues{'EQUALSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'EQUALSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (spaces around '==') => $line\n" if (&verboseArg());
  }

  if ($line =~ m/!=/ && $line !~ m/[[:space:]]{1}!=[[:space:]]{1}/ && $line !~ m/!=[[:space:]]*\(/) {
    $Issues{'EQUALSPACE'}{'count'}++;
    if ($Issues{'EQUALSPACE'}{'count'} == 1) {
      $Issues{'EQUALSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'EQUALSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (spaces around '!=') => $line\n" if (&verboseArg());
  }

  if ($pline =~ m/\+/ && $line =~ m/\+/ && $line !~ m/[[:space:]]{1}\+[[:space:]]{1}/ && $line !~ m/\+=/ && $line !~ m/\+\+/ && $line !~ m/\+[[:digit:]]/ && $line !~ m/^[[:space:]]*\+/ && $line !~ m/\([[:space:]]*\+/ && $line !~ m/\+$/ && $line !~ m/operator\+/ && $line !~ m/,\s\+/) {
    $Issues{'OPERSPACE'}{'count'}++;
    if ($Issues{'OPERSPACE'}{'count'} == 1) {
      $Issues{'OPERSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'OPERSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (spaces around '+') => $line\n" if (&verboseArg());
  }

  if ($pline =~ m/-/ && $line =~ m/-/ && $line !~ m/[[:space:]]{1}-[[:space:]]{1}/ && $line !~ m/-=/ && $line !~ m/\->/ && $line !~ m/--/ && $line !~ m/-[[:digit:]]/ && $line !~ m/=[[:space:]]{1}-/ && $line !~ m/^[[:space:]]*-/ && $line !~ m/\([[:space:]]*-/ && $line !~ m/-$/ && $line !~ m/operator-/ && $line !~ m/,\s-/) {
    $Issues{'OPERSPACE'}{'count'}++;
    if ($Issues{'OPERSPACE'}{'count'} == 1) {
      $Issues{'OPERSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'OPERSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (spaces around '-') => $line\n" if (&verboseArg());
  }
#Too hard
#  if ($line =~ m/\*/ && $line !~ m/[[:space:]]{1}\*[[:space:]]{1}/) {
#    $Issues{'OPERSPACE'}{'count'}++;
#    if ($Issues{'OPERSPACE'}{'count'} == 1) {
#      $Issues{'OPERSPACE'}{'lines'} = "line\#" . $linecnt;
#    } else {
#      $Issues{'OPERSPACE'}{'lines'} .= "," . $linecnt;
#    }
#    print "$linecnt (spaces around *) => $line\n" if (&verboseArg());
#  }

  if ($pline =~ m+/+ && $line =~ m+/+ && $line !~ m+[[:space:]]{1}/[[:space:]]{1}+ && $line !~ m+/=+ && $line !~ m+/$+ && $line !~ m/include/ && $line !~ m+operator/+) {
    $Issues{'OPERSPACE'}{'count'}++;
    if ($Issues{'OPERSPACE'}{'count'} == 1) {
      $Issues{'OPERSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'OPERSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (spaces around '/') => $line\n" if (&verboseArg());
  }

  if ($pline =~ m/=/ && $line !~ m/[[:space:]]{1}=[[:space:]]{1}/ && $line !~ m/[=\!><%\+-|&]=/ && $line !~ m/=$/ && $line !~ m/\*=/) {
    $Issues{'ASSIGNSPACE'}{'count'}++;
    if ($Issues{'ASSIGNSPACE'}{'count'} == 1) {
      $Issues{'ASSIGNSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'ASSIGNSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (spaces around '=') => $line\n" if (&verboseArg());
  }

  if ($pline =~ m/<</ && $line !~ m/\ {1}<<\ {1}/ && $line !~ m/<<=/ && $line !~ m/<<$/ && $line !~ m/operator</) {
    $Issues{'PUSHSPACE'}{'count'}++;
    if ($Issues{'PUSHSPACE'}{'count'} == 1) {
      $Issues{'PUSHSPACE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'PUSHSPACE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (1 space on each side of '<<') => $line\n" if (&verboseArg());
  }

  if ($line =~ m/<<$/) {
    $Issues{'PUSHEOL'}{'count'}++;
    if ($Issues{'PUSHEOL'}{'count'} == 1) {
      $Issues{'PUSHEOL'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'PUSHEOL'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (do not end a line with '<<') => $line\n" if (&verboseArg());
  }

  if ($line =~ m/};/ && $line =~ m/[[:space:]]{/ && $line !~ m/=\s*{/ && $line !~ m/{[[:space:]]*};/) {
    $Issues{'BRACESEMI'}{'count'}++;
    if ($Issues{'BRACESEMI'}{'count'} == 1) {
      $Issues{'BRACESEMI'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'BRACESEMI'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (bad brace-semi encountered) => $line\n" if (&verboseArg());
  }

  if ($pline =~ m/return[[:space:]]*\(.*\)$/ && $line !~ m/\?/ && $line !~ m/\($/ && $line !~ m/&\)/ && $line !~ m/\(\s*\);$/ && $line !~ m/\(\s*\(/) {
    $Issues{'RETURNPAREN'}{'count'}++;
    if ($Issues{'RETURNPAREN'}{'count'} == 1) {
      $Issues{'RETURNPAREN'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'RETURNPAREN'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (no return values in parens) => $line\n" if (&verboseArg());
  }

  if ($line =~ m/{};/ && $line !~ m/^\s*template\s<.*>\s(struct|class)/) {
    $Issues{'BADSEMI'}{'count'}++;
    if ($Issues{'BADSEMI'}{'count'} == 1) {
      $Issues{'BADSEMI'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'BADSEMI'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (bad brace-brace-semi encountered) => $line\n" if (&verboseArg());
  }

  if ($line =~ m/\s;/ && $line !~ m/for\s*\(\s*;/ && $line !~ m/while\s*\(\s*;/) {
    # allow semi on line by itself or consecutive semis inside a for statement
    if ($line !~ m/\s;$/ && $line !~ m/;\s?;.*\)/) {
      $Issues{'SPACESEMI'}{'count'}++;
      if ($Issues{'SPACESEMI'}{'count'} == 1) {
	$Issues{'SPACESEMI'}{'lines'} = "line\#" . $linecnt;
      } else {
	$Issues{'SPACESEMI'}{'lines'} .= "," . $linecnt;
      }
      print "$linecnt (whitespace preceeding semicolon) => $line\n" if (&verboseArg());
    }
  }

  if ($pline =~ m/;.*;/ && $line !~ m/\sfor\s*\(\s*/ && $line !~ m/\swhile\s*\(\s*/) {
    $Issues{'MULTISTATE'}{'count'}++;
    if ($Issues{'MULTISTATE'}{'count'} == 1) {
      $Issues{'MULTISTATE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'MULTISTATE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (only 1 statement permitted per line) => $line\n" if (&verboseArg());
  }

  if ($line =~ m/\t/) {
    $Issues{'TAB'}{'count'}++;
    if ($Issues{'TAB'}{'count'} == 1) {
      $Issues{'TAB'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'TAB'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (tab encountered) => $line\n" if (&verboseArg());
  }

  # do this test last please
  $line =~ s/\s+$//;
  $tline = $line;
  $tline =~ s/^\s+//;
  $indent = length($line) - length($tline);
  if ($indent % $KRAZY_STYLE_OFFSET) {
    if (!&isOkEnd($lline)) {
      $Issues{'BADINDENTOFF'}{'count'}++;
      if ($Issues{'BADINDENTOFF'}{'count'} == 1) {
	$Issues{'BADINDENTOFF'}{'lines'} = "line\#" . $linecnt;
      } else {
	$Issues{'BADINDENTOFF'}{'lines'} .= "," . $linecnt;
      }
      print "$linecnt (bad indent offset) => $tline\n" if (&verboseArg());
    }
  }
  if ($indent != $lindent) {
    if (($indent-$KRAZY_STYLE_OFFSET) != $lindent && ($indent+$KRAZY_STYLE_OFFSET) != $lindent) {
      if ($line !~ m/^{/ && $line !~ m/};$/ && $line !~ m/^\s*<</ && !&isClVi($line) && $line !~ m/^\s*$/ && !&isOkEnd($lline) && $lline !~ /break;$/ && $lline !~ /return;$/) {
	$Issues{'BADINDENTOFF'}{'count'}++;
	if ($Issues{'BADINDENTOFF'}{'count'} == 1) {
	  $Issues{'BADINDENTOFF'}{'lines'} = "line\#" . $linecnt;
	} else {
	  $Issues{'BADINDENTOFF'}{'lines'} .= "," . $linecnt;
	}
	print "$linecnt (bad indent offset too much) => $tline\n" if (&verboseArg());
      }
    }
  }
  if (($indent > 0) && ($indent < $lindent)) {
    if ($line !~ m/^\s*}/ && $line !~ m/^\s*case/ && !&isClVi($line) && $lline !~ m/{\s*}$/ && !&isOkEnd($lline) && $lline !~ m/break/) { # legit reduce indent conditions
      if(! ($lline =~ m/{$/ && $lline !~ m/^[[:space:]]if/ && $lline !~ m/^[[:space:]]for/ && $lline !~ m/^[[:space:]]while/ && $lline !~ m/^[[:space:]]if/)) { # last is continue if,while,for
	$Issues{'BADINDENT'}{'count'}++;
	if ($Issues{'BADINDENT'}{'count'} == 1) {
	  $Issues{'BADINDENT'}{'lines'} = "line\#" . $linecnt;
	} else {
	  $Issues{'BADINDENT'}{'lines'} .= "," . $linecnt;
	}
	print "$linecnt (bad indent) => $tline\n" if (&verboseArg());
      }
    }
  }
  if ($indent > $lindent) {
    if (!&isOkStart($line) && $lline !~ m/{$/ && $lline !~ m/,$/ && $lline !~ m/\($/ && $lline !~ m/:$/ && $lline !~ m/=$/ && $lline !~ m+\\$+ && $line !~ m+\\$+ && $lline !~ m/^\s*return/ && !&endOkCond($lline) && !&isLoop($lline) && !&isOper($lline)) {
	$Issues{'BADINDENT'}{'count'}++;
	if ($Issues{'BADINDENT'}{'count'} == 1) {
	  $Issues{'BADINDENT'}{'lines'} = "line\#" . $linecnt;
	} else {
	  $Issues{'BADINDENT'}{'lines'} .= "," . $linecnt;
	}
      }
  }
  if ($KRAZY_STYLE_CPPSTYLE eq "pim" &&
      (($line =~ m/^\s*public\s*:/ && $line !~ m/\s{2}public/) ||
       ($line =~ m/^\s*private\s*:/ && $line !~ m/\s{2}private/) ||
       ($line =~ m/^\s*protected\s*:/ && $line !~ m/\s{2}protected/) ||
       ($line =~ m/^\s*public\sslots\s*:/ && $line !~ m/\s{2}public/) ||
       ($line =~ m/^\s*public\sQ_SLOTS\s*:/ && $line !~ m/\s{2}public/) ||
       ($line =~ m/^\s*private\sslots\s*:/ && $line !~ m/\s{2}private/) ||
       ($line =~ m/^\s*private\sQ_SLOTS\s*:/ && $line !~ m/\s{2}private/) ||
       ($line =~ m/^\s*protected\sslots\s*:/ && $line !~ m/\s{2}protected/) ||
       ($line =~ m/^\s*protected\sQ_SLOTS\s*:/ && $line !~ m/\s{2}protected/) ||
       ($line =~ m/^\s*signals\s*:/ && $line !~ m/\s{2}signals/) ||
       ($line =~ m/^\s*Q_OBJECT\s*:/ && $line !~ m/\s{2}Q_OBJECT/) ||
       ($line =~ m/^\s*k_dcop_signals\s*:/ && $line !~ m/\s{2}k_dcop_signals/) ||
       ($line =~ m/^\s*Q_SIGNALS\s*:/ && $line !~ m/\s{2}Q_SIGNALS/))
     ) {
    $Issues{'BADINDENT'}{'count'}++;
    if ($Issues{'BADINDENT'}{'count'} == 1) {
      $Issues{'BADINDENT'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'BADINDENT'}{'lines'} .= "," . $linecnt;
    }
  }
  if (length($line)) {
    if ($lline !~ m/,$/ && $lline !~ m/&&$/ && $lline !~ m/\|\|$/) {
      #do not change indent level if line to be continued
      $lindent = $indent
    }
    $lline = $line;
  }
}

$linecnt=0;
$lline = '';
foreach $line (@data_lines) {
  $linecnt++;
  chomp($line);
  next if ($line =~ m+//.*[Kk]razy:exclude=.*$Prog+);

  if ($line =~ m/[[:space:]]$/) {
    $Issues{'TRAILWHITE'}{'count'}++;
    if ($Issues{'TRAILWHITE'}{'count'} == 1) {
      $Issues{'TRAILWHITE'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'TRAILWHITE'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (tailing whitespace) => $line\n" if (&verboseArg());
  }

  if (length($line) > $KRAZY_STYLE_LINEMAX) {
    $Issues{'LINELEN'}{'count'}++;
    if ($Issues{'LINELEN'}{'count'} == 1) {
      $Issues{'LINELEN'}{'lines'} = "line\#" . $linecnt;
    } else {
      $Issues{'LINELEN'}{'lines'} .= "," . $linecnt;
    }
    print "$linecnt (line too long) => $line\n" if (&verboseArg());
  }

  if ($line =~ m/^[[:space:]]*$/ && $lline =~ m/^[[:space:]]*$/) {
     $Issues{'BLANKS'}{'count'}++;
     if ($Issues{'BLANKS'}{'count'} == 1) {
       $Issues{'BLANKS'}{'lines'} = "line\#" . $linecnt;
     } else {
       $Issues{'BLANKS'}{'lines'} .= "," . $linecnt;
     }
     print "$linecnt (extra blank lines) => $tline\n" if (&verboseArg());
   }

  $lline = $line;
}

$cnt = &printResults();
if (!$cnt) {
  print "okay\n" if (!&quietArg());
  Exit 0;
} else {
  Exit $cnt;
}

sub Help {
  print "Check for adherence to a coding style\n";
  Exit 0 if &helpArg();
}

sub Version {
  print "$Prog, version $Version\n";
  Exit 0 if &versionArg();
}

sub Explain {
  print "Please follow the coding style guidelines at <http://pim.kde.org/development/coding-korganizer.php>\n";
  Exit 0 if &explainArg();
}

sub initIssues() {

  $Issues{'SPACEPAREN'}{'issue'} = 'Put 1 space before a closing paren';
  $Issues{'SPACEPAREN'}{'count'} = 0;
  $Issues{'SPACEPAREN'}{'lines'} = '';

  $Issues{'NOSPACEPAREN'}{'issue'} = 'Do not put spaces before a closing paren';
  $Issues{'NOSPACEPAREN'}{'count'} = 0;
  $Issues{'NOSPACEPAREN'}{'lines'} = '';

  $Issues{'PARENSPACE'}{'issue'} = 'Put 1 space after an opening paren';
  $Issues{'PARENSPACE'}{'count'} = 0;
  $Issues{'PARENSPACE'}{'lines'} = '';

  $Issues{'PARENNOSPACE'}{'issue'} = 'Do not put spaces after an opening paren';
  $Issues{'PARENNOSPACE'}{'count'} = 0;
  $Issues{'PARENNOSPACE'}{'lines'} = '';

  $Issues{'COMMASPACE'}{'issue'} = 'Bad spacing after a comma';
  $Issues{'COMMASPACE'}{'count'} = 0;
  $Issues{'COMMASPACE'}{'lines'} = '';

  $Issues{'SPACECOMMA'}{'issue'} = 'Bad spacing before a comma';
  $Issues{'SPACECOMMA'}{'count'} = 0;
  $Issues{'SPACECOMMA'}{'lines'} = '';

  $Issues{'CONDSPACE'}{'issue'} = 'Put 1 space before the opening paren';
  $Issues{'CONDSPACE'}{'count'} = 0;
  $Issues{'CONDSPACE'}{'lines'} = '';

  $Issues{'STARSPACE'}{'issue'} = 'Put 1 space before an asterisk or ampersand';
  $Issues{'STARSPACE'}{'count'} = 0;
  $Issues{'STARSPACE'}{'lines'} = '';

  $Issues{'IFBRACE'}{'issue'} = 'Put a brace on the line with the \'if\'';
  $Issues{'IFBRACE'}{'count'} = 0;
  $Issues{'IFBRACE'}{'lines'} = '';

  $Issues{'ELSEBRACE'}{'issue'} = 'Put a brace on the line with the \'else\'';
  $Issues{'ELSEBRACE'}{'count'} = 0;
  $Issues{'ELSEBRACE'}{'lines'} = '';

  $Issues{'FORBRACE'}{'issue'} = 'Put a brace on the line with the \'for\'';
  $Issues{'FORBRACE'}{'count'} = 0;
  $Issues{'FORBRACE'}{'lines'} = '';

  $Issues{'WHILEBRACE'}{'issue'} = 'Put a brace on the line with the \'while\'';
  $Issues{'WHILEBRACE'}{'count'} = 0;
  $Issues{'WHILEBRACE'}{'lines'} = '';

  $Issues{'SWITCHBRACE'}{'issue'} = 'Put a brace on the line with the \'switch\'';
  $Issues{'SWITCHBRACE'}{'count'} = 0;
  $Issues{'SWITCHBRACE'}{'lines'} = '';

  $Issues{'CASEBRACE'}{'issue'} = 'No brace on the line with the \'case\'';
  $Issues{'CASEBRACE'}{'count'} = 0;
  $Issues{'CASEBRACE'}{'lines'} = '';

  $Issues{'FUNCBRACE'}{'issue'} = 'No brace on the line with the \'class\' or function';
  $Issues{'FUNCBRACE'}{'count'} = 0;
  $Issues{'FUNCBRACE'}{'lines'} = '';

  $Issues{'ENUMBRACE'}{'issue'} = 'Put a brace on the line with the \'enum\'';
  $Issues{'ENUMBRACE'}{'count'} = 0;
  $Issues{'ENUMBRACE'}{'lines'} = '';

  $Issues{'EQUALSPACE'}{'issue'} = 'Put spaces around \'==\' and \'!=\'';
  $Issues{'EQUALSPACE'}{'count'} = 0;
  $Issues{'EQUALSPACE'}{'lines'} = '';

  $Issues{'OPERSPACE'}{'issue'} = 'Put spaces around \'+\', \'-\', \'*\', \'/\'';
  $Issues{'OPERSPACE'}{'count'} = 0;
  $Issues{'OPERSPACE'}{'lines'} = '';

  $Issues{'ASSIGNSPACE'}{'issue'} = 'Put spaces around \'=\' assignment';
  $Issues{'ASSIGNSPACE'}{'count'} = 0;
  $Issues{'ASSIGNSPACE'}{'lines'} = '';

  $Issues{'PUSHSPACE'}{'issue'} = 'Put spaces around \'<<\'';
  $Issues{'PUSHSPACE'}{'count'} = 0;
  $Issues{'PUSHSPACE'}{'lines'} = '';

  $Issues{'PUSHEOL'}{'issue'} = 'Do not end a line with \'<<\'';
  $Issues{'PUSHEOL'}{'count'} = 0;
  $Issues{'PUSHEOL'}{'lines'} = '';

  $Issues{'SPACECONST'}{'issue'} = 'Put 1 space between closing paren and const';
  $Issues{'SPACECONST'}{'count'} = 0;
  $Issues{'SPACECONST'}{'lines'} = '';

  $Issues{'BRACESEMI'}{'issue'} = 'Invalid semicolon after closing brace';
  $Issues{'BRACESEMI'}{'count'} = 0;
  $Issues{'BRACESEMI'}{'lines'} = '';

  $Issues{'SPACESEMI'}{'issue'} = 'No whitespace before semicolon';
  $Issues{'SPACESEMI'}{'count'} = 0;
  $Issues{'SPACESEMI'}{'lines'} = '';

  $Issues{'RETURNPAREN'}{'issue'} = 'Do not put return values in parens';
  $Issues{'RETURNPAREN'}{'count'} = 0;
  $Issues{'RETURNPAREN'}{'lines'} = '';

  $Issues{'BADSEMI'}{'issue'} = 'Invalid semicolon';
  $Issues{'BADSEMI'}{'count'} = 0;
  $Issues{'BADSEMI'}{'lines'} = '';

  $Issues{'MULTISTATE'}{'issue'} = 'Multiple statements on 1 line';
  $Issues{'MULTISTATE'}{'count'} = 0;
  $Issues{'MULTISTATE'}{'lines'} = '';

  $Issues{'TAB'}{'issue'} = 'Do not use tabs';
  $Issues{'TAB'}{'count'} = 0;
  $Issues{'TAB'}{'lines'} = '';

  $Issues{'LINELEN'}{'issue'} = "Line longer than $KRAZY_STYLE_LINEMAX characters";
  $Issues{'LINELEN'}{'count'} = 0;
  $Issues{'LINELEN'}{'lines'} = '';

  $Issues{'BADINDENT'}{'issue'} = "Bad indentation";
  $Issues{'BADINDENT'}{'count'} = 0;
  $Issues{'BADINDENT'}{'lines'} = '';

  $Issues{'BADINDENTOFF'}{'issue'} = "Bad ident offset";
  $Issues{'BADINDENTOFF'}{'count'} = 0;
  $Issues{'BADINDENTOFF'}{'lines'} = '';

  $Issues{'TRAILWHITE'}{'issue'} = "Trailing whitespace";
  $Issues{'TRAILWHITE'}{'count'} = 0;
  $Issues{'TRAILWHITE'}{'lines'} = '';

  $Issues{'BLANKS'}{'issue'} = "Extra blank lines";
  $Issues{'BLANKS'}{'count'} = 0;
  $Issues{'BLANKS'}{'lines'} = '';
}

sub printResults() {
  my($guy);
  my($check_num)=0;
  my($tot)=0;
  my($cline,$rline);
  my($fred);
  foreach $guy (keys %Issues) {
    $cline = "$Issues{$guy}{'issue'}:";

    if ($Issues{$guy}{'count'}) {
      $tot += $Issues{$guy}{'count'};
      print "$cline $Issues{$guy}{'lines'}\n";
    }
  }
  return $tot;
}

# printCheck function: print the "check" and "result" strings
sub printCheck(){
  my($check,$result) = @_;
  print "$check $result\n";
}

# isClVi function: return 1 if the string contains a class visibity
sub isClVi() {
  my($l) = @_;
  return 1
    if ($l =~ m/^\s*public:/ ||
	$l =~ m/^\s*private:/ ||
	$l =~ m/^\s*public slots:/ ||
	$l =~ m/^\s*protected:/ ||
	$l =~ m/^\s*signals:/ ||
	$l =~ m/^\s*slots:/ ||
	$l =~ m/^\s*Q_SIGNALS:/ ||
	$l =~ m/^\s*public Q_SIGNALS:/ ||
	$l =~ m/^\s*Q_SLOTS:/ ||
	$l =~ m/^\s*public Q_SLOTS:/);
  return 0;
}

# isOkStart function: return 1 if the string starts with ok stuff
sub isOkStart() {
  my($l) = @_;
  return 1
    if ($l =~ m/^\s*<</ ||
	$l =~ m/^\s*>>/ ||
	$l =~ m/^\s*\"/ ||
	$l =~ m/^\s*:/);
  return 0;
}

# isOkEnd function: return 1 if the string ends with ok stuff
sub isOkEnd() {
  my($l) = @_;
  return 1
    if ($l =~ m/,\s*$/ ||
	$l =~ m/\"\s*$/ ||
	&endOkCond($l));
  return 1;
}

# endOkCond function: return 1 if the string ends with a conditional op
sub endOkCond() {
  my($l) = @_;
  return 1
    if ($l =~ m/&&\s*$/ ||
	$l =~ m/&\s*$/ ||
	$l =~ m/\|\|\s*$/ ||
	$l =~ m/\|\s*$/ ||
        $l =~ m/<\s*$/ ||
        $l =~ m/>\s*$/ ||
        $l =~ m/==\s*$/ ||
        $l =~ m/!=\s*$/ ||
	$l =~ m/\?\s*$/);
  return 0;
}

# beginOkCond function: return 1 if the string begins with a conditional op
sub beginOkCond() {
  my($l) = @_;
  return 1
    if ($l =~ m/^\s*&&/ ||
	$l =~ m/^\s*&/ ||
	$l =~ m/^\s*\|\|/ ||
	$l =~ m/^\s*\|/ ||
        $l =~ m/^\s*</ ||
        $l =~ m/^\s*>/ ||
        $l =~ m/^\s*==/ ||
        $l =~ m/^\s*!=/ ||
	$l =~ m/^\s*\?/);
  return 0;
}

# isCond function: return 1 if the string starts a conditional
sub isCond() {
  my($l) = @_;
  return 1
    if ($l =~ m/^\s*if\s*\(/ ||
	$l =~ m/^\s*}\s*else\sif\s*\(/);
  return 0;
}

# isLoop function: return 1 if the string starts a loop
sub isLoop() {
  my($l) = @_;
  return 1
    if ($l =~ m/^\s*for\s*\(/ ||
	$l =~ m/^\s*while\s*\(/);
  return 0;
}

# isOper function: return 1 if the string ends with an operator
sub isOper() {
  my($l) = @_;
  return 1
    if ($l =~ m/\+\s*$/ ||
	$l =~ m/\.\s*$/ ||
	$l =~ m/-\s*$/  ||
	$l =~ m/\*\s*$/ ||
	$l =~ m+\/\s*$+ ||
        $l =~ m+/\s*$+);
  return 0;
}

# search the next $n lines for a pattern $p
sub searchForward {
  my($p,$l,$n) = @_;
  my($i);
  $n = $#lines if ($#lines < $n);
  for($i=0; $i<$n; $i++) {
    my $s = $lines[$l+$i];
    if ($lines[$l+$i] =~ $p) {
      return 1;
    }
  }
  return 0;
}
