Generated: Sun Apr 15 11:46:46 2012 from stripleft02.pl 2011/09/08 5.3 KB.
#!/usr/bin/perl -w # NAME: stripleft02.pl # AIM: Replace stripleft.pl # 08/09/2011 geoff mclane http://geoffair.net/mperl use strict; use warnings; use File::Basename; # split path ($name,$dir,$ext) = fileparse($file [, qr/\.[^.]*/] ) use Cwd; my $perl_dir = 'C:\GTools\perl'; unshift(@INC, $perl_dir); require 'lib_utils.pl' or die "Unable to load logfile.pl ...\n"; # log file stuff our ($LF); my $pgmname = $0; if ($pgmname =~ /(\\|\/)/) { my @tmpsp = split(/(\\|\/)/,$pgmname); $pgmname = $tmpsp[-1]; } my $outfile = $perl_dir."\\temp.$pgmname.txt"; open_log($outfile); # user variables my $VERS = "0.0.1 2011-09-08"; my $load_log = 0; my $in_file = ''; my $width = -1; my $out_file = $perl_dir."\\tempstrip.txt"; my $debug_on = 0; my $def_file = 'def_file'; ### program variables my @warnings = (); my $cwd = cwd(); my $os = $^O; sub show_warnings($) { my ($val) = @_; if (@warnings) { prt( "\nGot ".scalar @warnings." WARNINGS...\n" ); foreach my $itm (@warnings) { prt("$itm\n"); } prt("\n"); } else { ###prt( "\nNo warnings issued.\n\n" ); } } sub pgm_exit($$) { my ($val,$msg) = @_; if (length($msg)) { $msg .= "\n" if (!($msg =~ /\n$/)); prt($msg); } show_warnings($val); close_log($outfile,$load_log); exit($val); } sub prtw($) { my ($tx) = shift; $tx =~ s/\n$//; prt("$tx\n"); push(@warnings,$tx); } sub process_in_file($) { my ($inf) = @_; if (! open INF, "<$inf") { pgm_exit(1,"ERROR: Unable to open file [$inf]\n"); } my @lines = <INF>; close INF; my $lncnt = scalar @lines; prt("Processing $lncnt lines, from [$inf]...\n"); my ($line,$inc,$lnn,$len,$nline); $lnn = 0; my @nlines = (); foreach $line (@lines) { chomp $line; $lnn++; $len = length($line); $nline = ""; $nline = substr($line,$width) if ($len > $width); push(@nlines,$nline); } write2file(join("\n",@nlines)."\n",$out_file); prt("Modified lines written to [$out_file]\n"); } ######################################### ### MAIN ### parse_args(@ARGV); #prt( "$pgmname: in [$cwd]: Hello, World...\n" ); process_in_file($in_file); pgm_exit(0,""); ######################################## sub give_help { prt("$pgmname: version $VERS\n"); prt("Usage: $pgmname [options] in-file width\n"); prt("Options:\n"); prt(" --help (-h or -?) = This help, and exit 0.\n"); prt(" --in <file> (-i) = Set input file.\n"); prt(" --out <file> (-o) = Set output file. Will overwrite any existing!\n"); prt(" --width <NUM> (-w) = Set the width to strip from the left.\n"); } sub need_arg { my ($arg,@av) = @_; pgm_exit(1,"ERROR: [$arg] must have following argument!\n") if (!@av); } sub parse_args { my (@av) = @_; my ($arg,$sarg); my $cnt = 0; while (@av) { $arg = $av[0]; if ($arg =~ /^-/) { $sarg = substr($arg,1); $sarg = substr($sarg,1) while ($sarg =~ /^-/); if (($sarg =~ /^h/i)||($sarg eq '?')) { give_help(); pgm_exit(0,"Help exit(0)"); } elsif ($sarg =~ /^i/) { need_arg(@av); shift @av; $sarg = $av[0]; $in_file = $sarg; prt("Set input to [$in_file]\n"); } elsif ($sarg =~ /^o/) { need_arg(@av); shift @av; $sarg = $av[0]; $out_file = $sarg; prt("Set out put to [$in_file]\n"); } elsif ($sarg =~ /^w/) { need_arg(@av); shift @av; $sarg = $av[0]; if (($sarg =~ /^\d+$/)&&($sarg > 0)&&(int($sarg) == $sarg)) { $width = $sarg; prt("Set left width to [$width]\n"); } else { pgm_exit(1,"ERROR: Invalid argument [$sarg]! Must be integer width! Try -?\n"); } } else { pgm_exit(1,"ERROR: Invalid argument [$arg]! Try -?\n"); } } else { if ($cnt == 0) { $in_file = $arg; prt("Set input to [$in_file]\n"); } elsif ($cnt == 1) { if (($arg =~ /^\d+$/)&&($arg > 0)&&(int($arg) == $arg)) { $width = $arg; prt("Set width to [$width]\n"); } else { pgm_exit(1,"ERROR: Invalid argument [$arg]! Must be integer width! Try -?\n"); } } else { pgm_exit(1,"ERROR: Invalid argument [$arg]! Only two bare arguments - in file and width! Try -?\n"); } $cnt++; } shift @av; } if ((length($in_file) == 0) && $debug_on) { $in_file = $def_file; } if (length($in_file) == 0) { pgm_exit(1,"ERROR: No input files found in command!\n"); } if (! -f $in_file) { pgm_exit(1,"ERROR: Unable to find in file [$in_file]! Check name, location...\n"); } if ($width < 0) { pgm_exit(1,"ERROR: No width found in command!\n"); } } # eof - template.pl