# -*- coding: utf-8 -*-
#@+leo-ver=5-thin
#@+node:ekr.20061024060248.1: * @file leoPymacs.py
#@@first
#@+<< docstring>>
#@+node:ekr.20061024060248.2: ** << docstring >> (leoPymacs.py)
'''A module to allow the Pymacs bridge to access Leo data.
All code in this module must be called *from* Emacs:
calling Pymacs.lisp in other situations will hang Leo.
Notes:
- The init method adds the parent directory of leoPymacs.py to
Python's sys.path. This is essential to make imports work from
inside Emacs.
- As of Leo 4.5, the following code, when executed from an Emacs buffer,
will open trunk/leo/test.leo::
(pymacs-load "c:\\leo.repo\\trunk\\leo\\core\\leoPymacs" "leo-")
(setq c (leo-open "c:\\leo.repo\\trunk\\leo\\test\\test.leo"))
Note that full path names are required in each case.
'''
#@-<< docstring>>
# As in leo.py we must be very careful about imports.
# pylint: disable = global-variable-not-assigned
g = None # set by init: do *not* import it here!
inited = False
pymacsFile = __file__
# print('leoPymacs:pymacsFile',pymacsFile)
#@+others
#@+node:ekr.20061024131236: ** dump (pymacs)
[docs]def dump(anObject):
global g
init()
return str(g.toEncodedString(repr(anObject), encoding='ascii'))
#@+node:ekr.20061024130957: ** getters (pymacs)
[docs]def get_app():
'''Scripts can use g.app.scriptDict for communication with pymacs.'''
global g
init()
return g.app
[docs]def get_g():
global g
init()
return g
[docs]def script_result():
global g
init()
return g.app.scriptResult
#@+node:ekr.20061024060248.3: ** hello (pymacs)
[docs]def hello():
init()
return 'Hello from Leo. g.app: %s' % g.app
#@+node:ekr.20061024075542: ** init (pymacs)
[docs]def init():
global inited
if inited:
return
else:
inited = True # Only try once, no matter what happens.
# Add the parent path of this file to sys.path
import os
import sys
theDir = os.path.abspath(os.path.join(os.path.dirname(pymacsFile), '..', '..'))
if theDir not in sys.path:
print('leoPymacs:adding', theDir, 'to sys.path')
sys.path.append(theDir)
# Create the dummy app
try:
import leo.core.runLeo as leo
except ImportError:
print('leoPymacs.init: can not import runLeo')
print('leoPymacs.init: sys.path:')
for z in sys.path: print(z)
leo.run(pymacs=True)
try:
import leo.core.leoGlobals as leoGlobals
except ImportError:
print('leoPymacs.init: can not import leoGlobals')
global g; g = leoGlobals
# print('leoPymacs:init:g',g)
if 1: # These traces show up in the pymacs buffer.
g.trace('app', g.app)
g.trace('gui', g.app.gui)
#@+node:ekr.20061024075542.1: ** open (pymacs)
[docs]def open(fileName=None):
global g
init()
if g.app.unitTesting:
return
if not fileName:
g.es_print('', 'leoPymacs.open:', 'no file name')
return None
# openWithFileName checks to see if the file is already open.
c = g.openWithFileName(fileName)
if c:
g.es_print('', 'leoPymacs.open:', c)
else:
g.es_print('', 'leoPymacs.open:', 'can not open', fileName)
return c
#@+node:ekr.20061024084200: ** run-script (pymacs)
[docs]def run_script(c, script, p=None):
# It is possible to use script=None, in which case p must be defined.
global g
init()
if c is None:
c = g.app.newCommander(fileName='dummy script file')
g.app.scriptResult = None
c.executeScript(
event=None,
p=p,
script=script,
useSelectedText=False,
define_g=True,
define_name='__main__',
silent=True, # Don't write to the log.
)
return g.app.scriptResult
#@-others
#@@language python
#@@tabwidth -4
#@@pagewidth 70
#@-leo