Here's a "vtk cross reference" perl script.
Tom G. Smith
smitty at kcc.com
Fri Oct 15 15:30:37 EDT 1999
I just finished this, so it may yet need a tweak or two.
Among other things it -
-> Lists all the parent classes from which a given class is derived.
-> Lists all the classes that are directly derived from a class.
-> Lists all the classes to which a particular method name are native.
.........................................................................
#!/usr/bin/perl
# ---------------------------------------------------------------------
# Description: See help routine below.
# Created by Tom Smith (smitty at kcc.com). You're free to copy, modify,
# and redistribute this script, and use it for any purpose you like,
# so long as you clearly document changes as yours and not mine.
#
# IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO ANY PARTY FOR
# DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
# OF THE USE OF THIS SOFTWARE, ITS DOCUMENTATION, OR ANY DERIVATIVES THEREOF,
# EVEN IF THE AUTHORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING,
# BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
# PARTICULAR PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON AN
# "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE NO OBLIGATION TO PROVIDE
# MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
# ---------------------------------------------------------------------
# Changelog:
# 991014 Smitty created.
# ---------------------------------------------------------------------
sub help {
# ---------------------------------------------------------------------
# Prints help text.
# ---------------------------------------------------------------------
print<<END;
Description:
vtkfind, Version 1.
Scans files in the vtk source directory to report information
about vtk object classes, e.g. all the children with
inheritance from a base class, or all the parents from
which a class has inheritet, or to which classes a given
method name is native to.
Usage: vtkfind [-a] [-c] [-d dir] [-e <edit command>] \\
[-h] [-m] [-p] [-s] <name>
-a indicates <name> is to remain as is. When using -h or -s, without
-a you can leave off the vtk prefix and vtkfind will add it
for you. Also, you don't need to worry about capitalization.
For example, "vtkfind -a SetDebug" would report -
/opt/vtk/common/vtkObject.h vtkObject/void SetDebug(...
and "vtkfind -h object" would report -
/opt/vtk/common/vtkObject.h
When using -m without -a, vtkfind does the search case-insensitive,
but it doesn't automatically prefix "vtk" to <name> for you, since
few, if any, methods have that prefix.
-c indicates find all the children of the class <name>, i.e. all the
classes for which <name> is an inherited class. This option
is relatively expensive, since all *.e files must be scanned.
-d dir
Dir is the directory for the vtk source. The default is /opt/vtk.
-e <edit command>
Indicates if a filename is found it is to be appended to
<edit command> and executed. For example
"vtkfind -e 'vi -R' -h object" would cause the command
"vi -R /opt/vtk/common/vtkObject.h" to be executed.
Use -e in conjunction with -m cautiously. The command
"vtkfind -e 'vi -R' insertnextcell" will put in edit on
four files.
-h indicates the full path to <name>.h is to be found,
e.g. "vtkfind -h vtkunstructuredgrid" might list
/opt/vtk/common/vtkUnstructuredGrid.h. Can be used in
conjunction with -e (see above).
-m indicates all the *.h files in the vtk source directory (see -d)
are to be searched to find the classes to which the specified
method is native. Can be used in conjunction with -e (see
above).
-p indicates find all the parents of the class <name>, i.e. all the
classes from which <name> has inherited.
-s indicates the full path to <name>.cxx is to be found,
e.g. "vtkfind -s vtkunstructuredgrid" might list
/opt/vtk/common/vtkUnstructuredGrid.cxx. Can be used in
conjunction with -e (see above).
END
exit;
} # End help.
sub listhit {
# ---------------------------------------------------------------------
# Called by both methodlist and namelist to take the proper action
# when a filename matching the search criteria is found.
# ---------------------------------------------------------------------
local($file,$trailer)=@_;
if ($edit) {
system("$edit $file") unless($hits{$file});
$hits{$file}=1; # Indicate file found.
} else {
print("$file$trailer\n");
}
return(1);
} # End listhit.
sub methodlist {
# ---------------------------------------------------------------------
# Called to search the specified file for the specified method name.
# ---------------------------------------------------------------------
local($file,$name)=@_;
local($class,$line, at lines,$ret);
die("ERROR: Unable to read $file\n") unless (open(IN,$file));
chop(@lines=<IN>);
close(IN);
$class="";
$ret=0;
foreach $line (@lines) {
next if ($line =~ m#^\s*//#); # Skip comments.
$class=$1 if ($line =~ /^\s*class\s+VTK_EXPORT\s+(\w+)\s+/);
$line=lc($line) unless($a_switch);
$ret=&listhit($file,"\t$class/$1")
if ($line =~ /^\s*(.*$name\s*\(.*)/);
}
return($ret);
} # End methodlist.
sub namelist {
# ---------------------------------------------------------------------
# Returns 1 or 0 after listing the full path to the specified filename.
# ---------------------------------------------------------------------
local($file,$name,$suffix)=@_;
local(@q,$basename,$ret);
$ret=0;
@q=split("/",$file);
$basename=pop(@q);
$basename=lc($basename) unless($a_switch);
$ret=&listhit($file) if ($basename =~ /^$name$suffix$/);
return($ret);
} # End namelist.
sub search {
# ---------------------------------------------------------------------
# Called from mainline to initiate a search.
# ---------------------------------------------------------------------
local($name,$suffix,$action)=@_;
local($ret);
if($action eq "p") {
$ret=&searchparent($name,$suffix,$action);
} else {
$ret=&searchfiles($name,$suffix,$action);
}
return($ret);
} # End search.
sub searchfile {
# ---------------------------------------------------------------------
# Called to search the specified file for the specified object.
# action may be either -
# "c" for class definition, searching for inheritance from
# $name in a class defined in this file.
# "m" for $name being a method of a class defined in this file.
# "p" for class $name being defined in this file. If found,
# the class' parent name will be returned, or a 1 if
# no parent is defined. Otherwise 0 is returned.
# ---------------------------------------------------------------------
local($file,$name,$action)=@_;
local($class,$line, at lines,$parent,$rest,$ret);
$ret=0;
die("ERROR: Unable to read $file\n") unless (open(IN,$file));
chop(@lines=<IN>);
close(IN);
$class="";
foreach $line (@lines) {
next if ($line =~ m#^\s*//#); # Skip comments.
if ($line =~ /^\s*class\s+VTK_EXPORT\s+(\w+)\s+(.*)/) {
$class=$1;
$rest=$2;
if ($action =~ /[cp]/) {
$parent = ($rest =~ /:\s+public\s+(\w+)/)
? $1 : "";
if ($action eq "c") {
$ret=&listhit($file,"\t$class")
if ($name eq lc($parent));
last if($ret); # All done.
}
if ($action eq "p") {
if ($name eq lc($class)) {
$ret=($parent) ? $parent : 1;
&listhit($file,
"\t$class/$parent");
last; # All done.
}
}
}
}
if ($action eq "m") {
$line=lc($line) unless($a_switch);
$ret=&listhit($file,"\t$class/$1")
if ($line =~ /^\s*(.*$name\s*\(.*)/);
}
}
return($ret);
} # End searchfile.
sub searchfiles {
# ---------------------------------------------------------------------
# Called to search directory $dir for the specified name.
# ---------------------------------------------------------------------
local($name,$suffix,$action)=@_;
local($cmd,$file, at files,$ret);
$cmd="find $dir/* -type f -name '*$suffix'";
chop(@files=`$cmd`);
$ret=0;
foreach $file (@files) {
if ($action eq "c") {
$ret=1 if(&searchfile($file,$name,$action));
next;
}
if ($action eq "h" || $action eq "s") {
$ret=&namelist($file,$name,$suffix);
last if($ret);
next;
}
if ($action eq "m") {
$ret+=&searchfile($file,$name,$action);
next;
}
if ($action eq "p") {
last if($ret=&searchfile($file,$name,$action));
next;
}
}
return($ret);
} # End searchfiles.
sub searchparent {
# ---------------------------------------------------------------------
# Called to initiate a parent search.
# ---------------------------------------------------------------------
local($name,$suffix,$action)=@_;
local($ret);
$ret=0;
while(1) {
last unless($name=lc(&searchfiles($name,$suffix,$action)));
$ret=1; # We found at least one file.
}
return($ret);
} # End searchparent.
# Mainline ---------------------------------------------------------------
&help if (0==scalar(@ARGV));
$dir="/opt/vtk"; # Default.
$prefix="vtk"; # Default.
$suffix=".h"; # Default.
$action="m"; # Default.
while($arg=shift) {
if (substr($arg,0,1) eq "-") {
if (length($arg) > 2) {
unshift(@ARGV,"-".substr($arg,2));
$arg=substr($arg,0,2);
}
if ($arg eq "-a") {
$a_switch=1;
$prefix="";
next;
}
if ($arg eq "-c") { $action="c"; next; }
if ($arg eq "-d") {
die("ERROR: -d not followed by path\n")
unless($dir=shift);
next;
}
if ($arg eq "-e") {
die("ERROR: -e not followed by edit command\n")
unless($edit=shift);
next;
}
if ($arg eq "-h") { $action="h"; next; }
if ($arg eq "-m") { $action="m"; next; }
if ($arg eq "-p") { $action="p"; next; }
if ($arg eq "-s") {
$action="s";
$suffix=".cxx";
next;
}
}
unshift(@ARGV,$arg);
last;
}
die("ERROR: No name to search for specified.\n") unless($name=shift);
unless($a_switch) {
$name="$prefix$name" if ($action ne "m" && 0 != index($name,$prefix));
$name=lc($name); # Make it all lowercase.
}
unless(&search($name,$suffix,$action)) {
print("Not Found: $name\n");
exit 1;
}
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