---
name: "dtdtree"
section: "1"
platform: "linux"
package: "perlsgml"
version: "1:19970918-12.2"
release: "Debian 5.0 (Lenny)"
platforms: ["linux"]
url: "https://new.carta.tech/dtdtree"
---

# dtdtree(1)

generate a tree view of an SGML Document Type Definition (DTD)

## NAME

dtdtree — generate a tree view of an SGML Document Type Definition (DTD)

## SYNOPSIS

**dtdtree** \[options \]  \< *file*

## DESCRIPTION

**dtdtree** is a filter which expects an SGML DTD   on STDIN and sends a tree view of an SGML DTD to STDOUT.  Unlike   **dtd2html**, the output of **dtdtree**     is plain text, rather than a navigable hypertext document.

**dtdtree** is one of a  suite  of  tools available   in  the perlSGML  package, which together help one inspect, study,  and edit if necessary, an SGML Document  Type  Definitions  (DTD).    The   package   was   written   by   Earl   Hood  (ehood@medusa.acs.uci.edu).

This manual page was written for the **Debian GNU/Linux** distribution  because the original program does not have a manual page.  Instead, it has documentation in the **HTML**       format; see below.

## OPTIONS

This program takes the following command-line options:

- **-catalog** *file*

  Use *file* to map public identifiers  and external entities to system files.

- **-dtd** *file*

  Parse the DTD named by *file*.   Otherwise, read from STDIN.

- **-help**

  Print a brief usage description.  No other action is performed.

- **-level** *#*

  Set the prune level of the content hierarchy tree to   *#*.  Defaults to 15.

- **-treefile** *file*

  Output element content tree(s) to *file*     rather than STDOUT.

- **-verbose**

  Ouput to standard error messages of what   **dtdtree** is doing.   This option is mainly for debugging purposes.

## SEE ALSO

dtd2html (1), dtddiff (1), dtdview (1), and stripsgml (1).  These commands, as well as perlSGML's library of Perl modules   for parsing of the SGML DTD's are documented fully by       *The perlSGML Manual (link to URL http://www.oac.uci.edu/indiv/ehood/perlSGML/doc/html/perlSGML.html)* .

## AUTHOR

This manual page was written by Susan G. Kleinmann sgk@debian.org for  the **Debian GNU/Linux** system (but may be used by others).

Permission is granted to copy, distribute and/or modify  this document under the terms of the GNU Free  Documentation License, Version 1.1 or any later version  published by the Free Software Foundation; with no Invariant  Sections, no Front-Cover Texts and no Back-Cover Texts.  A copy  of the license can be found under  **/usr/share/common-licenses/FDL**.