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-rw-r--r--libraries/python-spidermonkey/README.md99
1 files changed, 90 insertions, 9 deletions
diff --git a/libraries/python-spidermonkey/README.md b/libraries/python-spidermonkey/README.md
index 0f5f823cdedbc..1ddc3d1fe46fa 100644
--- a/libraries/python-spidermonkey/README.md
+++ b/libraries/python-spidermonkey/README.md
@@ -1,10 +1,34 @@
-
Execute arbitrary JavaScript code from Python. Allows you to reference
arbitrary Python objects and functions in the JavaScript VM
+Having issues?
+==============
+
+The project support site can be found at [lighthouseapp.com][lh].
+
Requirements
============
+Pkg-Config
+----------
+
+Mac OS X:
+
+This should be installed by default. If not there is a port package:
+
+ $ sudo port install pkgconfig
+
+Debian/Ubuntu:
+
+This is also generally installed by default, but I have reports of it being
+otherwise.
+
+ $ sudo apt-get install pkg-config
+
+Gentoo:
+
+ $ sudo emerge dev-util/pkgconfig
+
Python Development Files
------------------------
@@ -21,6 +45,10 @@ Debian/Ubuntu:
Where X.X is the version of Python you are using. I have not tested
python-spidermonkey on Py3K so it may be horribly broken there.
+Gentoo:
+
+If you have python installed, then the headers should already be installed.
+
Netscape Portable Runtime (nspr)
--------------------------------
@@ -35,11 +63,40 @@ Mac OS X:
Debian/Ubuntu:
$ sudo apt-get install libnspr4-dev
+
+Gentoo:
+
+ $ sudo emerge dev-libs/nspr
Alternatively you can build from [source][nspr]. If you choose this route make
sure that the nspr-config command is on your $PATH when running the install
commands below.
+If you choose this route make
+sure that the pkg-config command is on your `$PATH` when running the install
+commands below. Additionally, make sure that `$PKG_CONFIG_PATH` is properly
+set.
+
+XULRunner (optional)
+--------------------
+You can optionally build the extension linked to your system's spidermonkey
+library, which is installed with XULRunner. You should be able to grab it from
+your package manager of choice with something like the following:
+
+Mac OS X:
+
+ $ sudo port install xulrunner
+
+Debian/Ubuntu:
+
+ $ sudo apt-get install xulrunner-1.9-dev
+
+Gentoo:
+
+ $ sudo emerge net-libs/xulrunner
+
+As with [nspr][nspr], you can also build [xulrunner][xulrunner] from source. And as with [nspr][nspr] you need to make sure hat `$PATH` and `$PKG_CONFIG_PATH` are properly set when building the module.
+
Installation
============
@@ -54,11 +111,10 @@ Installation
$ sudo python setup.py develop
-Having Issues?
-==============
-
-Add issues to the Lighthouse project [here][lh].
+If you want to build with the system spidermonkey library, replace the build
+command with the following:
+ $ python setup.py --system-library build
Examples
========
@@ -78,7 +134,8 @@ Basics
>>> fruit = Orange()
>>> cx.add_global("apple", fruit)
>>> cx.execute('"Show me the " + apple.is_ripe("raisin");')
- Show me the ripe raisin
+ u'Show me the ripe raisin'
+
Playing with Classes
--------------------
@@ -92,13 +149,14 @@ Playing with Classes
...
>>> rt = spidermonkey.Runtime()
>>> cx = rt.new_context()
- >>> cx.add_global(Monkey)
+ >>> cx.add_global("Monkey", Monkey)
>>> monkey = cx.execute('var x = new Monkey(); x.baz = "schmammo"; x;')
>>> monkey.baz
- 'schmammo'
+ u'schmammo'
>>> monkey.__class__.__name__
'Monkey'
+
JavaScript Functions
--------------------
@@ -107,7 +165,29 @@ JavaScript Functions
>>> cx = rt.new_context()
>>> func = cx.execute('function(val) {return "whoosh: " + val;}')
>>> func("zipper!");
- 'whoosh: zipper!'
+ u'whoosh: zipper!'
+
+
+Filtering access to Python
+--------------------------
+
+ >>> import spidermonkey
+ >>> rt = spidermonkey.Runtime()
+ >>> def checker(obj, name):
+ ... return not name.startswith("_")
+ ...
+ >>> cx = rt.new_context(access=checker)
+ >>> # Alternatively:
+ >>> cx.set_access() #doctest: +ELLIPSIS
+ <function checker at ...>
+ >>> cx.set_access(checker) #doctest: +ELLIPSIS
+ <function checker at ...>
+ >>> cx.add_global("fish", {"gold": "gone", "_old_lady": "huzza"})
+ >>> cx.execute('fish["_old_lady"];')
+ Traceback (most recent call last):
+ ...
+ JSError: Error executing JavaScript.
+
Previous Authors
================
@@ -117,3 +197,4 @@ Previous Authors
[lh]: http://davisp.lighthouseapp.com/projects/26898-python-spidermonkey/overview
[nspr]: ftp://ftp.mozilla.org/pub/mozilla.org/nspr/releases
+[xulrunner]: ftp://ftp.mozilla.org/pub/mozilla.org/xulrunner/releases