1826
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#!/usr/local/dist/DIR/perl4/bin/perl
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#
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# gen-isa_xemacs
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# Franz Regensburger <regensbu@informatik.tu-muenchen.de>
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# 21.3.95
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#
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# last changed:
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#
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# configures the script `isa_xemacs'
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#
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#
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# I like to see the output as it happens (flushed output)
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$| = 1;
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# cash current working directory
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require "pwd.pl";
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&initpwd;
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$initial_dir = $ENV{'PWD'};
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########################
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# comand line processing
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# processes all known switches and ingnores others.
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# first non-switch which is the name of a text file is
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# interpreted as name of configuration file.
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#
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# initialize
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$config_file="";
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$do_debug = 0;
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$do_ddebug = 0;
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while (@ARGV){
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$cur_arg = shift @ARGV;
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if ($cur_arg eq '-d') {$do_debug = 1;}
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elsif ($cur_arg eq '-dd') {$do_debug = 1; $do_ddebug = 1;}
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elsif ((-T $cur_arg) && !$config_file) {$config_file = $cur_arg;}
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}
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# complain if no configuration file is found
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if ($config_file eq "") {
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print "\nno configuration file suplied or argument is not a text file\n\n";
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print "usage gen-isa_xemacs [-d -dd] configfile\n",
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"options must be seperated by blanks!";
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die "\n";
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}
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print "debug mode is on\n" if $do_debug;
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print "double debug mode is on\n" if $do_ddebug;
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print "name of configuration file is $config_file\n" if $do_debug;
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########################
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# open the configuration file
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open(INFILE,$config_file) || die "can't open $config_file: $!\n";
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print "opened configuration file,\nprocessing\n" if $do_debug;
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########################
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# search for general setup variables
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print "\ngeneral setup\n" if $do_debug;
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########################
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# search for PACK
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$pack = $ENV{'ISABELLE8BIT'};
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if ($pack eq "") {
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die "\ncan't find label PACK in configuration file\n";}
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if (! (-d $pack)){
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die "\nPACK is not a directory\n";}
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########################
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# search for XEMACS_DIR
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#$xemacs_dir = &look_for_value('^\s*XEMACS_DIR\s*"(.*)"',"XEMACS_DIR");
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#if ($xemacs_dir eq "") {
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# die "\ncan't find XEMACS_DIR in configuration file\n";}
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#if (!(-r $pack."/".$xemacs_dir && -w $pack."/".$xemacs_dir && -x $pack."/".$xemacs_dir)){
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# die "\nneed read, write and execute permission for directory XEMACS_DIR\n";}
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$xemacs_dir = "xemacs";
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########################
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# configuration of KEY_MAP
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print "\nsetup for KEY_MAP\n" if $do_debug;
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########################
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# search for BEGIN_KEY_MAP
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$found = &look_for_label('^\s*BEGIN_KEY_MA(P)',"BEGIN_KEY_MAP");
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if ($found eq "") {
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die "\ncan't find BEGIN_KEY_MAP in configuration file\n";}
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########################
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# read the KEY_MAP
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$index = 0;
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$found = 0;
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$end_key_map = 0;
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$pattern =
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'^\s*MOD\s*(None|Mod1|Mod2|Mod4|Shift|Ctrl)\s*KEY\s*([a-zA-Z]|F\d{1,2})\s*CODE\s*([0-9a-fA-F][0-9a-fA-F](\s*,\s*[0-9a-fA-F][0-9a-fA-F])*)\s*$';
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while (<INFILE> ){
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if (/^\s*END_KEY_MAP/){
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print "line $.: END_KEY_MAP found\n" if $do_debug;
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$found = 1;
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$end_key_map = $index - 1;
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last;}
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elsif (($modifiers,$key,$codeseq) = /$pattern/){
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$key_map[$index]= join(':',$modifiers,$key,$codeseq);
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print "line $.: \"$key_map[$index]\"\n" if $do_ddebug;
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$index +=1;
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}
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else {
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print "Is this a comment? line $.: $_\n" ;}
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}
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if (!$found){
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die "\ncan't find END_KEY_MAP in configuration file\n";}
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if ($end_low_table < $start_low_table){
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die "\nNo entries in KEY_MAP\n";}
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else {print
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"computed index for END_KEY_MAP is $end_key_map\n" if $do_debug;}
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########################
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# we reached the end of the configuration file
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print "\nprocessing of configuration file completed\n" if $do_debug;
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########################
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# close the handle for config file
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close(INFILE);
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print "closed configuration file\n" if $do_debug;
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#######################################################################
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# modify the sources
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#######################################################################
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########################
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# change to directory XEMACS_DIR and open the file `isa_xemacs'
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chdir $pack."/".$xemacs_dir || die "can't cd to $xemacs_dir: $!\n";
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########################
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# configure isa_xemacs
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#
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$filename = "isa_xemacs.emacs";
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print "\nconfiguring $filename\n" if $do_debug;
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open(INFILE ,$filename) || die "can't open $filename: $!\n";
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print "opened $filename for reading\n" if $do_ddebug;
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open(OUTFILE,">tmp.txt") || die "can't open temporary file tmp.txt: $!\n";
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print "opened tmp.txt for writing\n" if $do_ddebug;
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$found = &replicate_until('^\s*;;\s*BEGIN-KEY-(MAP)',
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'BEGIN-KEY-MAP');
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if ( $found eq "") {
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die "\ncan't find `BEGIN-KEY-MAP'\n";}
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# print header of table
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printf(OUTFILE ";; BEGIN-KEY-MAP\n");
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#print the table
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$index = 0;
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while ($index < $end_key_map) {
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$entry = &translate_entry(split(/:/,$key_map[$index]));
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printf(OUTFILE "%s\n", $entry);
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$index += 1;
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}
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# print the last item
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$entry = &translate_entry(split(/:/,$key_map[$index]));
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printf(OUTFILE "%s\n", $entry);
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# print footer of table
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printf(OUTFILE ";; END-KEY-MAP\n");
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# skip the table in the input file
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$found = &skip_until('^\s*;;\s*END-KEY-(MAP)','END-KEY-MAP');
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if ($found eq "") {
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die "\ncan't find END-KEY-MAP in file $filename\n";}
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## replicate the rest of the input file
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while (<INFILE> ){printf(OUTFILE "%s",$_);}
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close(INFILE);
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close(OUTFILE);
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print "closed $filename and tmp.txt\n" if $do_ddebug;
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$status = system("cp tmp.txt $filename") ;
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if ($status) { die "can't copy tmp.txt to $filename: $!\n";}
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print "copied tmp.txt to $filename\n" if $do_ddebug;
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$status = system("rm -f tmp.txt");
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if ($status) {die "can't remove file tmp.txt: $!\n";}
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print "removed tmp.txt to $filename\n" if $do_ddebug;
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########################
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# END of script
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#
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print "\nconfiguration of isa_xemacs properly terminated\n\n";
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exit(0);
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#######################################################################
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# subroutines
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#######################################################################
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sub look_for_value {
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local ($pattern,$label) = @_;
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local ($temp) = "";
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while (<INFILE> ){
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if (($temp) = /$pattern/){
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print "line $.: $label is $temp\n" if $do_debug;
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last;}
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}
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return $temp;
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}
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sub look_for_label {
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local ($pattern,$label) = @_;
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local ($temp) = "";
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while (<INFILE> ){
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if (($temp) = /$pattern/){
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print "line $.: $label found\n" if $do_debug;
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last;}
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}
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return $temp;
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}
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sub replicate_until {
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local ($pattern,$label) = @_;
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local ($temp) = "";
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while (<INFILE> ){
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if (($temp) = /$pattern/){
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print "line $.: $label found\n" if $do_debug;
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last;}
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else {printf(OUTFILE "%s",$_);}
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}
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return $temp;
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}
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sub skip_until {
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local ($pattern,$label) = @_;
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local ($temp) = "";
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while (<INFILE> ){
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if (($temp) = /$pattern/){
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print "line $.: $label found\n" if $do_debug;
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last;}
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}
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return $temp;
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}
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sub double_bs {
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local ($string) = @_;
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local ($element);
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local (@temp1);
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local (@temp2) = ();
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# find the hex-numbers
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@temp1 = split(/(\\x[0-9a-fA-F][0-9a-fA-F])/,$string);
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#duplicate all backslashes in elements which are not hexnumbers
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while(@temp1) {
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$element = shift(@temp1);
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if ($element =~ /\\x[0-9a-fA-F][0-9a-fA-F]/){
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push(@temp2,$element);}
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else{
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$element =~ s/\\/\\\\/g;
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push(@temp2,$element);}
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}
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return (join('',@temp2));
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}
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# strip leading and trailing blanks
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sub strip_blanks{
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local ($string) = @_;
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$string =~ s/^\s*((\S+)|(\S.*\S))\s*$/$1/g;
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return $string;
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}
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# translate an entry for `isa_xemacs' script
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sub translate_entry{
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local ($mod,$key,$code) = @_;
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local (@codelist);
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local ($string);
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local ($emacs_mod);
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# we have to construct an emacs modifier
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if ($mod eq "None") { # No Modifier
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if ($key =~ /^[a-zA-Z]$/) { # key is not a function key
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$emacs_mod = "\"$key\"";}
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else { # key must be a function key, we translate the F to lowercase
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$key =~ tr/F/f/;
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$emacs_mod = "'(".$key.")";}}
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elsif ($mod eq "Mod1") { # Mod2 is Meta key in emacs
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if ($key =~ /^[a-zA-Z]$/) { # key is not a function key
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$emacs_mod = "'(meta ".$key.")";}
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else { # key must be a function key, we translate the F to lowercase
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$key =~ tr/F/f/;
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$emacs_mod = "'(meta ".$key.")";}}
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elsif ($mod eq "Mod2") { # Mod2 is Super key in emacs
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if ($key =~ /^[a-zA-Z]$/) { # key is not a function key
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$emacs_mod = "'(super ".$key.")";}
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else { # key must be a function key, we translate the F to lowercase
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$key =~ tr/F/f/;
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$emacs_mod = "'(super ".$key.")";}}
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elsif ($mod eq "Mod4") { # Mod4 is Hyper key in emacs
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if ($key =~ /^[a-zA-Z]$/) { # key is not a function key
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$emacs_mod = "'(hyper ".$key.")";}
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else { # key must be a function key, we translate the F to lowercase
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$key =~ tr/F/f/;
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$emacs_mod = "'(hyper ".$key.")";}}
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elsif ($mod eq "Ctrl") { # Ctrl is Control key in emacs
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if ($key =~ /^[a-zA-Z]$/) { # key is not a function key
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$emacs_mod = "'(control ".$key.")";}
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else { # key must be a function key, we translate the F to lowercase
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$key =~ tr/F/f/;
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$emacs_mod = "'(control ".$key.")";}}
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else { # modifier must be Shift
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if ($key =~ /^[a-zA-Z]$/) { # key is not a function key
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$key =~ tr/a-z/A-Z/; # we translate to uppercase
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$emacs_mod = "\"$key\"";}
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else { # key must be a function key, we translate the F to lowercase
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$key =~ tr/F/f/;
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$emacs_mod = "'(shift ".$key.")";}}
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# split the sequence of key codes
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@codelist = split(/\s*,\s*/,$code);
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# generate key codes
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$code="";
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foreach $string (@codelist){
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$code .= "(insert \"". sprintf("\\%o",hex($string)) ."\")";}
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# assemble the whole line
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$string =
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"(global-set-key ".$emacs_mod." '(lambda () (interactive) " .
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$code. "))";
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return $string;
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}
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