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Re^4: Gtk2 Visual Grep

by zentara (Archbishop)
on Jan 24, 2006 at 13:36 UTC ( #525175=note: print w/ replies, xml ) Need Help??


in reply to Re^3: Gtk2 Visual Grep
in thread Gtk2 Visual Grep

I "think" I found the answer to the "malformed utf8 errors". It probably only works for those using latin1 encoding. Possibly, it can be adjusted to use whatever encoding you use? Anyways, change the line which opens the file from

open (FH,"<", $_); # to open (FH,"<:encoding(latin1)", $_);
Anyways, it works for me in stopping the errors. I can't say how the regex search works in all it's complexity, for instance a really complex regex may need some special handling, but so far, so good. :-)

Here is a complete patched snippet. I added another feature to skip search directories that begin with the number 1. (The code is commented out, but you may activate it). I store alot of html files for my categories, in 1DOCS, and I prefer not to delve into them on recursive searches. Modify to fit your needs.

New script:

#!/usr/bin/perl use warnings; use strict; use File::Find; use Gtk2 -init; use Glib qw(FALSE TRUE); use Gtk2::Pango; $|++; my $help; while(<DATA>){$help .= $_} my $seeking = 0; #global flag to indicate searching is in progress my $cancel = 0; #global flag to cancel a long running search my %files; #global to store results my $current; #global to hold currently opened file my ($recurse, $name, $case,$linenums,$quick_start,$use_regex) =(0,0,0, +0,0,0); if( grep{/\bn\b/} @ARGV ){@ARGV = grep { $_ ne 'n' } @ARGV; $name = 1 +}; if( grep{/\br\b/} @ARGV ){@ARGV = grep { $_ ne 'r' } @ARGV; $recurse = + 1 }; if( grep{/\bc\b/} @ARGV ){@ARGV = grep { $_ ne 'c' } @ARGV; $case = 1 +}; if( grep{/\bR\b/} @ARGV ){@ARGV = grep { $_ ne 'R' } @ARGV; $use_regex + = 1 }; $linenums = 1; #opened file line numbering is on by default my $search_str = $ARGV[0] or $quick_start = 1; $search_str ||= undef; #only accept 1 search string, so quote phrases on commandline #print "$name $recurse $case @ARGV\n"; my $font = Gtk2::Pango::FontDescription->from_string("Sans Bold 18"); my $hand_cursor = Gtk2::Gdk::Cursor->new ('hand2'); my $regular_cursor = Gtk2::Gdk::Cursor->new ('xterm'); my $hovering_over_link = FALSE; my $blue = Gtk2::Gdk::Color->new (0,0,0xFFFF); my $red = Gtk2::Gdk::Color->new (0xFFFF,0xFFFF,0); my $white = Gtk2::Gdk::Color->new (0xFFFF,0xFFFF,0xFFFF); my $window = Gtk2::Window->new; $window->signal_connect( destroy => sub { Gtk2->main_quit; } ); $window->set_default_size( 700, 600 ); $window->signal_connect (key_press_event => \&key_handler); #main box for display my $vbox = Gtk2::VBox->new(); $vbox->set( "border_width" => 10 ); $window->add($vbox); #top main box for search entry and options my $vboxt = Gtk2::VBox->new(); $vboxt->set( "border_width" => 1 ); $vbox->pack_start( $vboxt, 0, 0, 1 ); # expand?, fill?, padding #top layer my $hboxt = Gtk2::HBox->new(); $hboxt->set( "border_width" => 1 ); $vboxt->pack_start( $hboxt, 0, 0, 1 ); # expand?, fill?, padding #bottom layer my $hboxb = Gtk2::HBox->new(); $hboxb->set( "border_width" => 1 ); $vboxt->pack_start( $hboxb, 0, 0, 1 ); # expand?, fill?, padding ################################################################ my $vboxC1 = Gtk2::VBox->new(); my $vboxC2 = Gtk2::VBox->new(); my $vboxC3 = Gtk2::VBox->new(); my $checkbutton1 = Gtk2::CheckButton->new('Recurse SubDirs'); $checkbutton1->signal_connect( clicked => sub{check_button_callback($checkbutton1, \$recurse, 're +curse') } ); $vboxC1->pack_start( $checkbutton1, 0, 0, 0 ); if($recurse){$checkbutton1->set_active(1);} my $checkbutton2 = Gtk2::CheckButton->new('Name Search Only'); $checkbutton2->signal_connect( clicked => sub{check_button_callback($checkbutton2, \$name , 'name' +)}); $vboxC1->pack_start( $checkbutton2, 0, 0, 0 ); if($name){$checkbutton2->set_active(1);} my $checkbutton3 = Gtk2::CheckButton->new('Case Sensitive'); $checkbutton3->signal_connect( clicked => sub{check_button_callback($checkbutton3, \$case , 'case') +}); $vboxC2->pack_start( $checkbutton3, 0, 0, 0 ); if($case){$checkbutton3->set_active(1);} my $checkbutton4 = Gtk2::CheckButton->new('File Line Numbered'); $checkbutton4->signal_connect( clicked => sub{check_button_callback($checkbutton4, \$linenums , 'li +nenums')}); $vboxC2->pack_start( $checkbutton4, 0, 0, 0 ); if($linenums){$checkbutton4->set_active(1);} my $checkbutton5 = Gtk2::CheckButton->new('Use Regex'); $checkbutton5->signal_connect( clicked => sub{check_button_callback($checkbutton5, \$use_regex , 'u +se_regex')}); $vboxC3->pack_start( $checkbutton5, 0, 0, 0 ); if($use_regex){$checkbutton5->set_active(1);} $hboxt->pack_start( $vboxC1, 0, 0, 0 ); $hboxt->pack_start( $vboxC2, 0, 0, 0 ); $hboxt->pack_start( $vboxC3, 0, 0, 0 ); ################################################################# # the search button my $sbutton = Gtk2::Button->new_from_stock('gtk-find'); $sbutton->signal_connect( clicked => sub{ if(! $seeking){ do_dir_searc +h()} }); $hboxt->pack_start( $sbutton, 0, 0, 5 ); ############################################################## # exit button my $ebutton = Gtk2::Button->new_from_stock('gtk-quit'); $ebutton->signal_connect( clicked => sub { Gtk2->main_quit; } ); $hboxt->pack_end( $ebutton, 0, 0, 5 ); ################################################################# # the help button my $hbutton = Gtk2::Button->new_from_stock('gtk-help'); $hbutton->signal_connect( clicked => \&print_usage ); $hboxt->pack_end( $hbutton, 0, 0, 5 ); ################################################################## #bottom fields my $label = Gtk2::Label->new('Search Text:'); $label->modify_font($font); $hboxb->pack_start( $label, 0, 0, 5 ); # expand?, fill?, padding my $entry = Gtk2::Entry->new(); $entry->modify_font($font); if(defined $search_str){ $entry->set_text($search_str) } $hboxb->pack_start( $entry, 1, 1, 1 ); # expand?, fill?, padding #setup default focaus chain $vboxt->set_focus_child ($hboxb); $hboxb->set_focus_child ($entry); #$entry->has_focus(TRUE); $entry->signal_connect (key_press_event => \&key_handler); ################################################################# #box for list my $hbox1 = Gtk2::HBox->new(); $hbox1->set( "border_width" => 1 ); #box for textview my $hbox2 = Gtk2::HBox->new(); $hbox2->set( "border_width" => 1 ); #$hbox2->set_size_request(200,500); my $f1_label = Gtk2::Label->new('Search Results'); $f1_label->modify_fg('normal',$red); $f1_label->modify_font($font); my $frame1 = Gtk2::Frame->new(); $frame1->set_label_widget($f1_label); $vbox->pack_start( $frame1, 1, 1, 1 ); # expand?, fill?, padding $frame1->set_border_width(1); $frame1->add($hbox1); $frame1->modify_bg('normal', $red); my $f2_label = Gtk2::Label->new('File'); $f2_label->modify_fg('normal',$blue); $f2_label->modify_font($font); my $frame2 = Gtk2::Frame->new(); $frame2->set_label_widget($f2_label); $vbox->pack_start( $frame2, 1, 1, 1 ); # expand?, fill?, padding $frame2->set_border_width(1); $frame2->add($hbox2); $frame2->modify_bg('normal', $blue); # Create a textbuffer to contain the resultant files my $textbuffer0 = Gtk2::TextBuffer->new(); create_tags($textbuffer0); $textbuffer0->set_text(''); $textbuffer0->apply_tag_by_name ('bold',$textbuffer0->get_start_iter,$ +textbuffer0->get_end_iter); # Create a textview using that textbuffer my $textview0 = Gtk2::TextView->new_with_buffer($textbuffer0); $textview0->set_left_margin (5); $textview0->signal_connect (event_after => \&event_after); $textview0->signal_connect (motion_notify_event => \&motion_notify_eve +nt); my $swl = Gtk2::ScrolledWindow -> new(); $swl -> add_with_viewport($textview0); $hbox1->add($swl); ###################################################### # Create a textbuffer to contain the opened files my $textbuffer = Gtk2::TextBuffer->new(); create_tags($textbuffer); $textbuffer->set_text(''); $textbuffer->apply_tag_by_name ('bold',$textbuffer->get_start_iter,$te +xtbuffer->get_end_iter); # Create a textview using that textbuffer my $textview = Gtk2::TextView->new_with_buffer($textbuffer); $textview->set_left_margin (5); # Add the textview to a scrolledwindow my $scrolledwindow = Gtk2::ScrolledWindow->new( undef, undef ); $scrolledwindow->add($textview); # add that scrolledwindow to the vbox $hbox2->add($scrolledwindow); $window->show_all; #setup a control-c exit---------- my @accels = ( { key => 'C', mod => 'control-mask', func => sub{ Gtk2->main_q +uit } }, ); my $accel_group = Gtk2::AccelGroup->new; use Gtk2::Gdk::Keysyms; foreach my $a (@accels) { $accel_group->connect ($Gtk2::Gdk::Keysyms{$a->{key}}, $a->{mo +d}, 'visible', $a->{func}); } $window->add_accel_group ($accel_group); ##############------------------- if( $quick_start == 0){ Glib::Timeout->add (10, sub { do_dir_search(); 0 }); } Gtk2->main; ###################################################################### +####### sub do_file_search{ my $file = shift; if( ! defined $file ){return} my @lines = (); foreach my $aref( @{$files{$file}} ){ push @lines, $$aref[0]; } $textbuffer->set_text(''); open (FH,"< $file"); while(<FH>){ my $line = $.; if($linenums){ my $lineI = sprintf "%03d", $line; $textbuffer->insert_with_tags_by_name ($textbuffer->get_end_ite +r, $lineI, 'rmap'); $textbuffer->insert ($textbuffer->get_end_iter, ' '); } if( grep {/^$line$/} @lines ){ $textbuffer->insert_with_tags_by_name ($textbuffer->get_end +_iter, $_, 'rmapZ'); }else{ $textbuffer->insert_with_tags_by_name ($textbuffer->get_end_ +iter, $_, 'bold'); } } close FH; #set up where to scroll to when opening file my $first; if ( $lines[0] > 0 ){ $first = $lines[0] }else{$first = 1} my $start_iter = $textbuffer->get_iter_at_line($first); my $start_mark = $textbuffer->create_mark('start', $start_iter, 1); $textview->scroll_to_mark($start_mark ,0.0, 0, 0, 0.0); #set frame label to file name $f2_label->set_text($file); $current = $file; } ################################################################ sub do_dir_search{ #prevent accidental double enter's or double find button presses $seeking = 1; $cancel = 0; #clear old screens $textbuffer->delete($textbuffer->get_start_iter,$textbuffer->get_end_i +ter,); $textbuffer0->delete($textbuffer0->get_start_iter,$textbuffer0->get_en +d_iter,); #clear old results %files = (); $f1_label->set_text('Search Results'); $f2_label->set_text('File'); # defaults are case-insensitive, no recurse, open and search files (no +t filename) my $path = '.'; $search_str = $entry->get_text(); if( ! length $search_str){$seeking = 0; $cancel = 0; return} my $regex; #defaults to case insensitive if ($case){ if ($use_regex) { $regex = qr/$search_str/; } else { $regex = qr/\Q$search_str\E/ } }else { if ($use_regex) { $regex = qr/$search_str/i; }else{ $regex = qr/\Q$search_str\E/i; } } # use s modifier for multiline match my $count = 0; my $count1 = 0; find (sub { if( $cancel ){ return $File::Find::prune = 1} # skip directories which begin with 1 # if (-d && $_ =~ /^1.*$/) { # $File::Find::prune = 1; # return; # } $count1++; if( ! $recurse ){ my $n = ($File::Find::name) =~ tr!/!!; #count slashes in file return $File::Find::prune = 1 if ($n > 1); } return if -d; return unless (-f and -T ); if($name){ if ($_ =~ /$regex/){ push @{$files{$File::Find::name}}, [-1,'']; #push into HoA } }else{ # open (FH,"<", $_); # binmode(FH, ":encoding(latin1)"); open (FH,"<:encoding(latin1)", $_); while(<FH>){ if ($_ =~ /$regex/){ chomp $_; push @{$files{$File::Find::name}}, [$., $_]; #push +into HoA } } close FH; } #------ my $key = $File::Find::name; if( defined $files{$key} ){ $count++; my $aref = $files{$key}; my @larray = @$aref; insert_link ($textbuffer0, $key ); foreach my $aref(@larray){ if( $$aref[0] > 0 ){ #don't do for name searches, which are - +1 #add line number with color my $lineI = sprintf"%03d", $$aref[0]; $textbuffer0->insert_with_tags_by_name( $textbuffer0->get_end_iter,"\n$lineI",'rmap'); #add matching line $textbuffer0->insert_with_tags_by_name( $textbuffer0->get_end_iter,"$$aref[1]",'bold'); } } $textbuffer0->insert($textbuffer0->get_end_iter,"\n"); } $f1_label->set_text("$count1 checked -- $count matches .. Space +Bar cancels"); Gtk2->main_iteration while Gtk2->events_pending; #----- }, $path); $f1_label->set_text("$count matches DONE"); $seeking = 0; $cancel = 0; Gtk2->main_iteration while Gtk2->events_pending; } ###################################################################### +######## sub insert_link { #print "@_\n"; my ($buffer, $file ) = @_; #create tag here independently, so we can piggyback unique data my $tag = $buffer->create_tag (undef, foreground => "blue", underline => 'single', size => 20 * PANGO_SCALE ); # piggyback data onto each tag $tag->{file} = $file; $buffer->insert_with_tags ($textbuffer0->get_end_iter, $file, $tag); } ###################################################################### +##### # Looks at all tags covering the position of iter in the text view, # and if one of them is a link, follow it by showing the page identifi +ed # by the data attached to it. # sub follow_if_link { my ($text_view, $iter) = @_; my $tag = $iter->get_tags; my $file = $tag->{file}; if($file){ do_file_search($file); } } ################################################################# # Links can also be activated by clicking. sub event_after { my ($text_view, $event) = @_; return FALSE unless $event->type eq 'button-release'; return FALSE unless $event->button == 1; my $buffer = $text_view->get_buffer; # we shouldn't follow a link if the user has selected something my ($start, $end) = $buffer->get_selection_bounds; return FALSE if defined $end and $start->get_offset != $end->get_offset; my ($x, $y) = $text_view->window_to_buffer_coords ('widget', #GTK_TE +XT_WINDOW_WIDGET, $event->x, $event +->y); my $iter = $text_view->get_iter_at_location ($x, $y); follow_if_link ($text_view, $iter); return FALSE; } ##################################################################### # Looks at all tags covering the position (x, y) in the text view, # and if one of them is a link, change the cursor to the "hands" curso +r # typically used by web browsers. # sub set_cursor_if_appropriate { my ($text_view, $x, $y) = @_; my $hovering = FALSE; my $buffer = $text_view->get_buffer; my $iter = $text_view->get_iter_at_location ($x, $y); foreach my $tag ($iter->get_tags) { if ($tag->{file}) { $hovering = TRUE; last; } } if ($hovering != $hovering_over_link) { $hovering_over_link = $hovering; $text_view->get_window ('text')->set_cursor ($hovering_over_link ? $hand_cursor : $regular_cursor); } } ###################################################################### +# # Update the cursor image if the pointer moved. # sub motion_notify_event { my ($text_view, $event) = @_; my ($x, $y) = $text_view->window_to_buffer_coords ( 'widget', #GTK_TEXT_WINDOW_WI +DGET, $event->x, $event->y); set_cursor_if_appropriate ($text_view, $x, $y); $text_view->window->get_pointer; return FALSE; } ###################################################################### +### sub check_button_callback { my ($button,$ident,$name) = @_; if ($button->get_active) { # if control reaches here, the check button is down $$ident = 1; } else { # if control reaches here, the check button is up $$ident = 0; } #reload current file with(or without) linenums #useful when copying for pasting to other apps if( $name eq 'linenums' ){ do_file_search($current) } } ###################################################################### +############ sub create_tags{ my $buffer = shift; $buffer->create_tag( "italic", style => 'italic' ); $buffer->create_tag( "bold", weight => PANGO_WEIGHT_BOLD ); $buffer->create_tag( "big", size => 20 * PANGO_SCALE ); # points times the PANGO_SCALE factor $buffer->create_tag( "x-large", scale => PANGO_SCALE_X_LARGE ); my $gray25_bits = pack 'CC', 0x02, 0x01, 0x01; my $stipple = Gtk2::Gdk::Bitmap->create_from_data( undef, $gray25_b +its, 3, 3); $buffer->create_tag( "background_stipple", background_stipple => $s +tipple ); $buffer->create_tag('rmap', background => 'red', background_stipple => $stipple , weight => PANGO_WEIGHT_BOLD, ); $buffer->create_tag('rmapX', background => 'red', background_stipple => $stipple , scale => PANGO_SCALE_X_LARGE, ); $buffer->create_tag('rmapZ', foreground => 'red', weight => PANGO_WEIGHT_BOLD, size => 15 * PANGO_SCALE ); $buffer->create_tag('blue', background => 'blue', ); } ###################################################################### sub key_handler { my ($widget, $event) = @_; # match the keyval --- in general you don't want to use magic # numbers here, use values from %Gtk2::Gdk::Keysyms instead. if (($seeking) && ($event->keyval == 32)) { #detect spacebar hit +to cancel search $cancel = 1; $seeking = 0; return TRUE; # tell the system we handled this } if ($event->keyval == 65293) { #detect Enter press do_dir_search() unless $seeking; return TRUE; # tell the system we handled this } return FALSE; # tell the system we did not handle this } ###################################################################### sub print_usage{ $textbuffer->delete($textbuffer->get_start_iter,$textbuffer->get_end +_iter,); $textbuffer->set_text($help); } ###################################################################### __DATA__ # USAGE: # -- takes a quoted string on the command line to search for # -- you can give options n r c, separately on the commandline # -- n ->search filenames only # -- r ->recurse into sub directories # -- c ->case sensitive # Will open with no options or search string, in empty mode. # Found files, will be displayed as blue underlined hyperlinks. # Under each link, will be the line numbers and matched lines. # Clicking blue links will open the file, and all matched lines will # be displayed in red text. # Control-c from anywhere will kill the program. # SpaceBar cancels a long search # Multi-word search strings on the command line should be # single quoted. # Search strings entered in the entry box, do not need quotes # and will be submitted by an enter keypress, or the find button. # The line numbering can be turned off for copying and pasting from # the opened files. A right click in the lower textbox, will open # the textbox menu for Copying to the Clipboard for pasting with # the paste options from other apps (Control-v). Otherwise, the selec +ted # text is only in the mouse clipboard buffer. __END__

I'm not really a human, but I play one on earth. flash japh


Comment on Re^4: Gtk2 Visual Grep
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Re^5: Gtk2 Visual Grep
by svenXY (Deacon) on Jan 24, 2006 at 14:42 UTC
    Thanks a bunch, ++zentara!

    Last thing I was thinking about (except excluding dirs (for me it would be .svn dirs or so)) would be a start dir parameter. But I can easily do that myself.

    Regards,
    svenXY

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