Login or Register to Ask a Question and Join Our Community


Software Releases - RSS News

LEPL 2.0 (Default branch)

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Special Forums News, Links, Events and Announcements Software Releases - RSS News LEPL 2.0 (Default branch)
# 1  
Old 03-05-2009
LEPL 2.0 (Default branch)
LEPL is a recursive descent parser library writtenin Python. It is based on parser combinatorlibraries popular in functional programming, butalso exploits Python language features. Operatorsprovide a friendly syntax, and the consistent useof generators supports full backtracking andresource management. Backtracking implies that awide variety of grammars are supported, but onlyLL(k) are guaranteed to terminate.License: GNU Lesser General Public License (LGPL)Changes:
This release introduces several new features while keeping the same basic syntax for grammars (expressed as Python code). These include: evaluation via trampolining, which avoids any limits on recursion due to the small Python stack; memoisation, allowing both packrat parsing (Norvig 1991) and left-recursive grammars (Frost and Hafiz 2006); matcher graph rewriting, allowing manipulation of the grammar before parsing starts.Image

Image

More...
Login or Register to Ask a Question

Previous Thread | Next Thread
Login or Register to Ask a Question

LEARN ABOUT DEBIAN

cython

CYTHON(1)							   User Commands							 CYTHON(1)

NAME

       Cython - compile Cython code (.pyx) into C to build a Python extension

SYNOPSIS

       cython [options] sourcefile.{pyx,py} ...

DESCRIPTION

       Cython (http://cython.org) is a compiler for code written in the Cython language.  Cython is based on Pyrex by Greg Ewing.

OPTIONS

       -V, --version
	      Display version number of cython compiler

       -l, --create-listing
	      Write error messages to a listing file

       -I, --include-dir <directory>
	      Search for include files in named directory (multiple include directories are allowed).

       -o, --output-file <filename>
	      Specify name of generated C file

       -t, --timestamps
	      Only compile newer source files

       -f, --force
	      Compile all source files (overrides implied -t)

       -q, --quiet
	      Don't print module names in recursive mode

       -v, --verbose
	      Be verbose, print file names on multiple compilation

       -p, --embed-positions
	      If specified, the positions in Cython files of each function definition is embedded in its docstring.

       --cleanup <level>
	      Release interned objects on python exit, for memory debugging.  Level indicates aggressiveness, default 0 releases nothing.

       -w, --working <directory>
	      Sets the working directory for Cython (the directory modules are searched from)

       --gdb  Output debug information for cygdb

       -D, --no-docstrings
	      Strip docstrings from the compiled module.

       -a, --annotate
	      Produce a colorized HTML version of the source.

       --line-directives
	      Produce #line directives pointing to the .pyx source

       --cplus
	      Output a C++ rather than C file.

       --embed[=<method_name>]
	      Generate a main() function that embeds the Python interpreter.

       -2     Compile based on Python-2 syntax and code semantics.

       -3     Compile based on Python-3 syntax and code semantics.

       --fast-fail
	      Abort the compilation on the first error

       --warning-error, -Werror
	      Make all warnings into errors

       --warning-extra, -Wextra
	      Enable extra warnings

       -X, --directive <name>=<value>[,<name=value,...] Overrides a compiler directive

Cython version 0.15.1						   January 2012 							 CYTHON(1)