source: trunk/third/gtk/examples/extract.awk @ 14482

# extract - extract C source files from GTK Tutorial
# Copyright (C) Tony Gale 1998
# Contact: gale@gtk.org
#
# Command Switches:
# -c : Just do checking rather than output files
# -f <filename> : Extract a specific file
# -d : Extract files to current directory
 
BEGIN {in_example=0; check=0; spec_example=""; do_output=0; flatten=0
       for (i=0 ; i < ARGC ; i++) {
        if ( ARGV[i] == "-c" ) {
          check = 1;
          ARGV[i]="";
        } else if ( ARGV[i] == "-f" ) {
          spec_example=ARGV[i+1];
          ARGV[i]="";
          ARGV[i+1]="";
          if ( length(spec_example) == 0 ) {
            print "usage: -f <filename>";
            exit;
          }
        } else if ( ARGV[i] == "-d" ) {
          flatten = 1;
          ARGV[i]="";
        }
       }
      }

$2 == "example-start" && in_example == 1 { printf("\nERROR: nested example at line %d\n", NR) > "/dev/stderr";
                                           exit}

$2 == "example-start"                    { in_example=1 }

$2 == "example-start" && check == 0 \
  { if ( (spec_example == "") || (spec_example == $4) ) {
    if ( flatten == 0 ) {
      if (file_name != "")
          close(file_name);
      file_name = sprintf("%s/%s",$3, $4);
      command = sprintf("mkdir -p %s", $3);
      system(command);
    } else {
      file_name = $4;
    }
    do_output=1;
  }
  }

in_example==1 && check==0 && do_output==1 { gsub(/&amp;/, "\\&", $0);
                                            print $0 >file_name } 

$2 == "example-end" && in_example == 0    { printf("\nERROR: multiple ends at line %d\n", NR) > "/dev/stderr";
                                            exit}
$2 == "example-end"                       { in_example=0; do_output=0 }


END {}