EP

Section: Misc. Reference Manual Pages (l)
Updated: 11/11/92
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NAME

ep - Eiffel-3 Parser

 

SYNOPSIS

ep [ -MEY | -ISE | -SIG ] [ -bfiq ] filename ...

ep [ -MEY | -ISE | -SIG ] -t filename ...  

DESCRIPTION

By default ep parses the source file given by filename and generates a readable abstract syntax tree (ast) if the source file is syntax correct according to the Eiffel-3 syntax as defined in [1] and [2]. If errors occur they are printed on stderr and no tree is generated. If filename does not end with .e ep uses filename.e as source file. The file containing the abstract syntax tree is named after the source file - the suffix .atr replacing .e. ep was implemented using the Karlsruhe Toolbox for Compiler Construction [3].  

OPTIONS

Compatibility

-MEY
The default. The syntax check is performed according to [1] and [2].
-ISE
The syntax check is performed according to [1], [2] and deviations as indicated by Eiffel-3 source files provided by ISE.
-SIG
The syntax check is performed according to [1], [2], [4] and deviations as indicated by Eiffel-3 source files shipped with SIG Eiffel-3/S 1.2 (beta).

Output Format

-b
A tree in a binary format for further use by the Karlsruhe Toolbox for Compiler Construction or other tools is generated. The format is specified in [6]. The filename suffix is .btr.
-f
The generated tree is printed on stdout .
-i
An integrated error listing is generated and placed in the same directory as the source file. The error listing file is named after the source file - the suffix .lst replacing .e in the name of the error listing.
-q
An interactive tree browser [5], is activated with the generated tree as input. The user is prompted to provide one of the following commands: 
 parent            display parent node
 quit              quit the tree browser
 <selector>        display specified child (first match)
 <selector><space> display specified child (exact match)
All commands can be abbreviated to an unambigous prefix.
 

-t

No tree is generated if the source is syntax correct. Only errors are reported.  

SEE ALSO

[1]
B. Meyer: Eiffel - The Language. Prentice Hall, Englewood Cliffs, 1992.
[2]
B. Meyer: Eiffel-3 syntax revision, comp.lang.eiffel, July 1992.
[3]
J. Grosch: Toolbox Introduction. Compiler Generation Report No.25, GMD Forschungsstelle at the University of Karlsruhe, Aug. 1992.
[4]
M. Schweitzer and L. Strether: Eiffel/S: The Compiler, SIG Computer GmbH, 1st edition, 1991.
[5]
J. Grosch: Ast - A Generator for Abstract Syntax Trees (Revised Version), Compiler Generation Report No.15, GMD Forschungsstelle at the University of Karlsruhe, Aug. 1989.
[6]
B. Groeber and O. Langmack: A Compiler Front-End for Eiffel-3, Report B-92-25, Freie Universitaet Berlin - Institut fuer Informatik, 1992.
 

BUGS

No known bugs. 
Please send questions, comments and error reports to:
                
        Burghardt Groeber 
        Institut fuer Informatik
        FU Berlin
        Nestorstr. 8/9
        W-1000 Berlin 31

        groeber@inf.fu-berlin.de
 

AUTHORS

B. Groeber
O. Langmack
 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
-t
SEE ALSO
BUGS
AUTHORS
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