Eli   Documents Get Eli: Translator Construction Made Easy at SourceForge.net.
    Fast, secure and Free Open Source software downloads

General Information

 o Eli: Translator Construction Made Easy
 o Global Index
 o Frequently Asked Questions
 o Typical Eli Usage Errors

Tutorials

 o Quick Reference Card
 o Guide For new Eli Users
 o Release Notes of Eli
 o Tutorial on Name Analysis
 o Tutorial on Type Analysis
 o Typical Eli Usage Errors

Reference Manuals

 o User Interface
 o Eli products and parameters
 o LIDO Reference Manual
 o Typical Eli Usage Errors

Libraries

 o Eli library routines
 o Specification Module Library

Translation Tasks

 o Lexical analysis specification
 o Syntactic Analysis Manual
 o Computation in Trees

Tools

 o LIGA Control Language
 o Debugging Information for LIDO
 o Graphical ORder TOol

 o FunnelWeb User's Manual

 o Pattern-based Text Generator
 o Property Definition Language
 o Operator Identification Language
 o Tree Grammar Specification Language
 o Command Line Processing
 o COLA Options Reference Manual

 o Generating Unparsing Code

 o Monitoring a Processor's Execution

Administration

 o System Administration Guide

Mail Home

New Features of Eli Version 4.1

Previous Chapter Next Chapter Table of Contents


FunnelWeb Output Specification

A non-product output file, named by @N, is now available. A non-product output file is identical to a normal output file except that it is not included in the set of files making up the final product specification.

Non-product files are files that are used in the derivation of product components, but are not themselves components of the product. For example, consider the problem of making keywords case-insensitive but retaining case sensitivity in identifiers (see Making Literal Symbols Case Insensitive of Lexical Analysis). Here is a portion of a FunnelWeb file implementing such a processor:

@O@<nolit.gla@>==@{
identifier: C_IDENTIFIER
@}

@N@<keyword.gla@>==@{
$[a-z]+
@}

@O@<keyword.specs@>==@{
keyword.gla :kwd
@}

Note that the file `keyword.gla' can not form part of the final product specification. If it did, the specified processor would treat all completely lower case identifiers as comments! Nevertheless, file `keyword.gla' is necessary to specify the representation of the keywords in the grammar so that they can be extracted and processed separately (see Making Literal Symbols Case Insensitive of Lexical Analysis). Thus file `keyword.gla' is defined as a non-product file by using @N instead of @O when specifying its name and content.


Previous Chapter Next Chapter Table of Contents