!code_iso
!no_preamble [tex]

# Uncomment the following line for LaTeX 2.09
# !tex \documentstyle[12pt]{article}

# Uncomment the following lines for LaTeX2e
!tex_2e
!tex \documentclass[12pt,a4paper]
!tex \usepackage{a4}

!begin_document
!node Example
This example uses a userdefined (!LaTeX) preamble.
!end_document
