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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

Pattern Based Text Generator Specifications


The Pattern-Based Text Generator PTG supports translations into any kind of structured text.

Typical patterns:

    Pair: "(" $ "." $ ")"       /* ordinary pattern */
    Decl: $2 ":" $1 ";"         /* indexed pattern */
    Ident: $ string $ int       /* typed pattern */
    CommaSeq: $1 {", "} $2      /* optional pattern */
    IndText: [Indent $2 int] $1 /* function call pattern */     
Typical Error Situations

  • Wrong number of parameters in PTG function application:

    ==> ERROR: prototype mismatch: 3 args passed, 2 expected

  • Wrong type of parameters in PTG function application:

    ==> argument #3 is incompatible with prototype

  • Correct PTG function signature but wrong parameter order:

    ==> Runtime surprise

Back to Typical Eli Errors