Commit 136fa173 authored by dcw's avatar dcw
Browse files

not install instructions now

parent 0ac38050
......@@ -5,54 +5,48 @@ implement them.
Duncan C. White,
19th March 2002
Building and Packaging on Linux
An Example of Datadec in Action
Either download
and install it (rpm -i) from there, or do a source build:
1. Download the datadec-1.0.tgz file and save it in your RPM SOURCES directory.
2. Extract the package SPEC file:
tar xzf datadec-1.0.tgz datadec-1.0/PKG/RPM
3. Enter the directory and build the package:
cd datadec-1.0/PKG/RPM
rpm -bb datadec.spec
4. Now you can install the datadec-1.0-1.is386.rpm that you just built,
using rpm -i..
Building on Solaris or Other Unices
1. Extract the .tgz file..
2. Compile it:
cd datadec-1.0
3. Install it (run this as root) into /usr/local/bin and /usr/man/man1:
make install
4. (Optionally on Solaris) package it up and store in somewhere:
cd PKG/Solaris
(edit Makefile, changing where to store the built package)
make install
5. install the package (as root):
pkgadd -d datadec-1.0-1-sol8-sparc-dcw all
To give you a feel for what datadec can do, you could write:
intlist = nil
| cons( int first, intlist next )
illist = nil
| cons( intlist first, illist next )
idtree = leaf( string id, illist l )
| node( idtree left, idtree right )
What does this mean?
The first rule declares that an intlist can take two basic "shapes" -
it is either empty, nil, or of the form cons(int,intlist).
nil and cons() are called constructors, and define different
"shapes" that objects of the type can take.
However, because the second argument of a cons() constructor is itself
an intlist, this type is said to be recursively defined.
Functional programmers will recognise nil or cons() as the standard
way of defining a list, so more intuitively, intlist is simply
a list of integers!
Reading on, an illist is declared as a list of intlists,
and an idtree is declared as a binary tree where each leaf node
contains a (string, illist) pair.
Given this input, datadec can automatically construct an ANSI C
module which implements all the data types, a constructor function for
each constructor, deconstructor functions to help you to take objects
apart again and printing functions to help you with debugging.
Building and Packaging datadec
See the INSTALL file for building and packaging instructions.
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