Diff for "PySh" - Mercurial

Differences between revisions 1 and 10 (spanning 9 versions)

PySh is a planned roughly POSIX-compliant shell with various built-ins to allow portability of the test suite. It is important that this tool be both simple and relatively self-contained.

Some useful links for getting started:

[http://pyparsing.wikispaces.com/ Pyparsing]: an easy-to-use recursive descent parser as a single Python module.
[http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_10 POSIX shell BNF]: a good starting point for building our shell grammar
[http://pyparsing.wikispaces.com/space/showimage/ebnf.py ebnf.py]: An EBNF->pyparsing converter

Other links:

[http://www.antlr.org Antlr]: An LL(k) recursive descent parser generator which can generate Python.
[http://www.dabeaz.com/ply PLY] - lex/yacc alike framework for Python
[http://dev.modelnine.org/hg/pyrr/ PyRR]: a lexing and parsing toolkit for Python.
[http://ipython.scipy.org/doc/manual/node12.html PySh]: the other Python shell
[http://www.busybox.net/cgi-bin/viewcvs.cgi/trunk/busybox/shell/ash.c Ash]: A maintained slim shell
[http://lists.samba.org/archive/linux/2004-February/009990.html Martin Pool presumes that it is not possible to use BNF to describe the sh grammar]
- - which is ok, because we only want to make a shell usable for the test suite, not a complete sh replacement

-  ⇤ ← Revision 1 as of 2006-07-24 20:44:46 → 
  Size: 509
  Editor: mpm
  Comment:
+   ← Revision 10 as of 2006-09-09 21:48:41 → ⇥
  Size: 1346
  Editor: AlexanderSchremmer
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
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-PySh is a planned roughly POSIX-compliant shell with various built-ins to allow portability of the test suite.
+PySh is a planned roughly POSIX-compliant shell with various built-ins to allow portability of the test suite. It is important that this tool be both simple and relatively self-contained.
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-Some useful links:
+Some useful links for getting started:
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-[http://pyparsing.wikispaces.com/ Pyparsing]: an easy-to-use recursive descent parser as a singly Python module.
+ * [http://pyparsing.wikispaces.com/ Pyparsing]: an easy-to-use recursive descent parser as a single Python module. 
 * [http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_10 POSIX shell BNF]: a good starting point for building our shell grammar
 * [http://pyparsing.wikispaces.com/space/showimage/ebnf.py ebnf.py]: An EBNF->pyparsing converter
-Line 7:
+Line 9:
-[http://www.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_10 POSIX shell BNF]: a good starting point for building our shell grammar
+Other links:
-Line 9:
+Line 11:
-[http://pyparsing.wikispaces.com/space/showimage/ebnf.py ebnf.py]: An EBNF->pyparsing converter
+ * [http://www.antlr.org Antlr]: An LL(k) recursive descent parser generator which can generate Python.
 * [http://www.dabeaz.com/ply PLY] - lex/yacc alike framework for Python
 * [http://dev.modelnine.org/hg/pyrr/ PyRR]: a lexing and parsing toolkit for Python.
 * [http://ipython.scipy.org/doc/manual/node12.html PySh]: the other Python shell
 * [http://www.busybox.net/cgi-bin/viewcvs.cgi/trunk/busybox/shell/ash.c Ash]: A maintained slim shell
 * [http://lists.samba.org/archive/linux/2004-February/009990.html Martin Pool presumes that it is not possible to use BNF to describe the sh grammar]
    - which is ok, because we only want to make a shell usable for the test suite, not a complete sh replacement