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HDL parser

Project description

Hdlparse is a simple package implementing a rudimentary parser for VHDL and Verilog. It is not capable of fully parsing the entire language. Rather, it is meant to extract enough key information from a source file to create generated documentation.

This library is used by the Symbolator diagram generator.

For VHDL this library can extract component, subprogram, type, subtype, and constant declarations from a package. For Verilog it can extract module declarations (both 1995 and 2001 syntax).


Hdlparse requires either Python 2.7 or Python 3.x and no additional libraries.

The installation script depends on setuptools. The source is written in Python 2.7 syntax but will convert cleanly to Python 3 when the installer passes it through 2to3.


You can access the Hdlparse Git repository from Github. You can install direct from PyPI with the “pip” command if you have it available.


Hdlparse is a Python library. You must have Python installed first to use it. Most modern Linux distributions and OS/X have it available by default. There are a number of options available for Windows. If you don’t already have a favorite, I recommend getting one of the “full-stack” Python distros that are geared toward scientific computing such as Anaconda or Python(x,y).

You need to have the Python setuptools installed first. If your OS has a package manager, it may be preferable to install setuptools through that tool. Otherwise you can use Pip:

> pip install setuptools

The easiest way to install Hdlparse is from PyPI.

> pip install --upgrade hdlparse

This will download and install the latest release, upgrading if you already have it installed. If you don’t have pip you may have the easy_install command available which can be used to install pip on your system:

> easy_install pip

You can also use pip to get the latest development code from Github:

> pip install --upgrade

If you manually downloaded a source package or created a clone with Git you can install with the following command run from the base Hdlparse directory:

> python install

On Linux systems you may need to install with root privileges using the sudo command.

After a successful install the Hdlparse library will be available.


The full documentation is available online at the main Hdlparse site.

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