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" Vim integration with IPython 0.11+
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"
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" A two-way integration between Vim and IPython.
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"
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" Using this plugin, you can send lines or whole files for IPython to execute,
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" and also get back object introspection and word completions in Vim, like
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" what you get with: object?<enter> object.<tab> in IPython
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"
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" -----------------
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" Quickstart Guide:
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" -----------------
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" Start ipython qtconsole and copy the connection string.
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" Source this file, which provides new IPython command
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" :source ipy.vim
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" :IPythonClipboard
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" (or :IPythonXSelection if you're using X11 without having to copy)
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"
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" written by Paul Ivanov (http://pirsquared.org)
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python << EOF
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reselect = False # reselect lines after sending from Visual mode
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show_execution_count = True # wait to get numbers for In[43]: feedback?
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monitor_subchannel = True # update vim-ipython 'shell' on every send?
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run_flags= "-i" # flags to for IPython's run magic when using <F5>
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import vim
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import sys
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# get around unicode problems when interfacing with vim
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vim_encoding=vim.eval('&encoding') or 'utf-8'
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try:
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sys.stdout.flush
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except AttributeError:
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# IPython complains if stderr and stdout don't have flush
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# this is fixed in newer version of Vim
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class WithFlush(object):
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def __init__(self,noflush):
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self.write=noflush.write
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self.writelines=noflush.writelines
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def flush(self):pass
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sys.stdout = WithFlush(sys.stdout)
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sys.stderr = WithFlush(sys.stderr)
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ip = '127.0.0.1'
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try:
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km
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except NameError:
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km = None
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def km_from_string(s=''):
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"""create kernel manager from IPKernelApp string
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such as '--shell=47378 --iopub=39859 --stdin=36778 --hb=52668' for IPython 0.11
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or just 'kernel-12345.json' for IPython 0.12
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"""
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from os.path import join as pjoin
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from IPython.zmq.blockingkernelmanager import BlockingKernelManager, Empty
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from IPython.config.loader import KeyValueConfigLoader
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from IPython.zmq.kernelapp import kernel_aliases
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global km,send,Empty
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s = s.replace('--existing', '')
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if 'connection_file' in BlockingKernelManager.class_trait_names():
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from IPython.lib.kernel import find_connection_file
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# 0.12 uses files instead of a collection of ports
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# include default IPython search path
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# filefind also allows for absolute paths, in which case the search
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# is ignored
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try:
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# XXX: the following approach will be brittle, depending on what
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# connection strings will end up looking like in the future, and
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# whether or not they are allowed to have spaces. I'll have to sync
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# up with the IPython team to address these issues -pi
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if '--profile' in s:
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k,p = s.split('--profile')
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k = k.lstrip().rstrip() # kernel part of the string
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p = p.lstrip().rstrip() # profile part of the string
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fullpath = find_connection_file(k,p)
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else:
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fullpath = find_connection_file(s.lstrip().rstrip())
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except IOError,e:
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echo(":IPython " + s + " failed", "Info")
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echo("^-- failed '" + s + "' not found", "Error")
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return
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km = BlockingKernelManager(connection_file = fullpath)
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km.load_connection_file()
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else:
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if s == '':
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echo(":IPython 0.11 requires the full connection string")
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return
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loader = KeyValueConfigLoader(s.split(), aliases=kernel_aliases)
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cfg = loader.load_config()['KernelApp']
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try:
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km = BlockingKernelManager(
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shell_address=(ip, cfg['shell_port']),
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sub_address=(ip, cfg['iopub_port']),
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stdin_address=(ip, cfg['stdin_port']),
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hb_address=(ip, cfg['hb_port']))
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except KeyError,e:
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echo(":IPython " +s + " failed", "Info")
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echo("^-- failed --"+e.message.replace('_port','')+" not specified", "Error")
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return
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km.start_channels()
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send = km.shell_channel.execute
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return km
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def echo(arg,style="Question"):
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try:
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vim.command("echohl %s" % style)
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vim.command("echom \"%s\"" % arg.replace('\"','\\\"'))
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vim.command("echohl None")
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except vim.error:
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print "-- %s" % arg
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def disconnect():
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"disconnect kernel manager"
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# XXX: make a prompt here if this km owns the kernel
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pass
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def get_doc(word):
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if km is None:
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return ["Not connected to IPython, cannot query \"%s\"" %word]
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msg_id = km.shell_channel.object_info(word)
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doc = get_doc_msg(msg_id)
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# get around unicode problems when interfacing with vim
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return [d.encode(vim_encoding) for d in doc]
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import re
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# from http://serverfault.com/questions/71285/in-centos-4-4-how-can-i-strip-escape-sequences-from-a-text-file
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strip = re.compile('\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]')
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def strip_color_escapes(s):
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return strip.sub('',s)
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def get_doc_msg(msg_id):
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n = 13 # longest field name (empirically)
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b=[]
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try:
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content = get_child_msg(msg_id)['content']
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except Empty:
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# timeout occurred
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return ["no reply from IPython kernel"]
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if not content['found']:
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return b
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for field in ['type_name','base_class','string_form','namespace',
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'file','length','definition','source','docstring']:
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c = content.get(field,None)
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if c:
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if field in ['definition']:
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c = strip_color_escapes(c).rstrip()
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s = field.replace('_',' ').title()+':'
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s = s.ljust(n)
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if c.find('\n')==-1:
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b.append(s+c)
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else:
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b.append(s)
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b.extend(c.splitlines())
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return b
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def get_doc_buffer(level=0):
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# empty string in case vim.eval return None
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word = vim.eval('expand("<cfile>")') or ''
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doc = get_doc(word)
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if len(doc) ==0:
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echo(word+" not found","Error")
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return
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# close any currently open preview windows
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vim.command('pcl')
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# documentation buffer name is same as the query made to ipython
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vim.command('new '+word)
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vim.command('setlocal pvw modifiable noro')
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# doc window quick quit keys: 'q' and 'escape'
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vim.command('map <buffer> q :q<CR>')
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# Known issue: to enable the use of arrow keys inside the terminal when
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# viewing the documentation, comment out the next line
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vim.command('map <buffer> <Esc> :q<CR>')
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# and uncomment this line (which will work if you have a timoutlen set)
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#vim.command('map <buffer> <Esc><Esc> :q<CR>')
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b = vim.current.buffer
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b[:] = None
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b[:] = doc
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vim.command('setlocal nomodified bufhidden=wipe')
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#vim.command('setlocal previewwindow nomodifiable nomodified ro')
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#vim.command('set previewheight=%d'%len(b))# go to previous window
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vim.command('resize %d'%len(b))
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#vim.command('pcl')
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#vim.command('pedit doc')
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#vim.command('normal ') # go to previous window
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def update_subchannel_msgs(debug=False):
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msgs = km.sub_channel.get_msgs()
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if debug:
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#try:
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# vim.command("b debug_msgs")
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#except vim.error:
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# vim.command("new debug_msgs")
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#finally:
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db = vim.current.buffer
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else:
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db = []
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b = vim.current.buffer
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startedin_vimipython = vim.eval('@%')=='vim-ipython'
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if not startedin_vimipython:
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# switch to preview window
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vim.command(
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"try"
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"|silent! wincmd P"
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"|catch /^Vim\%((\a\+)\)\=:E441/"
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"|silent pedit +set\ ma vim-ipython"
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"|silent! wincmd P"
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"|endtry")
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# if the current window is called 'vim-ipython'
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if vim.eval('@%')=='vim-ipython':
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# set the preview window height to the current height
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vim.command("set pvh=" + vim.eval('winheight(0)'))
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else:
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# close preview window, it was something other than 'vim-ipython'
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vim.command("pcl")
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vim.command("silent pedit +set\ ma vim-ipython")
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vim.command("wincmd P") #switch to preview window
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# subchannel window quick quit key 'q'
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vim.command('map <buffer> q :q<CR>')
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vim.command("set bufhidden=hide buftype=nofile ft=python")
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#syntax highlighting for python prompt
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# QtConsole In[] is blue, but I prefer the oldschool green
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# since it makes the vim-ipython 'shell' look like the holidays!
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#vim.command("hi Blue ctermfg=Blue guifg=Blue")
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vim.command("hi Green ctermfg=Green guifg=Green")
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vim.command("hi Red ctermfg=Red guifg=Red")
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vim.command("syn keyword Green 'In\ []:'")
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vim.command("syn match Green /^In \[[0-9]*\]\:/")
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vim.command("syn match Red /^Out\[[0-9]*\]\:/")
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b = vim.current.buffer
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|
for m in msgs:
|
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#db.append(str(m).splitlines())
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s = ''
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if 'msg_type' not in m['header']:
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# debug information
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#echo('skipping a message on sub_channel','WarningMsg')
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#echo(str(m))
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continue
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elif m['header']['msg_type'] == 'status':
|
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continue
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|
elif m['header']['msg_type'] == 'stream':
|
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s = strip_color_escapes(m['content']['data'])
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elif m['header']['msg_type'] == 'pyout':
|
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|
s = "Out[%d]: " % m['content']['execution_count']
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s += m['content']['data']['text/plain']
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elif m['header']['msg_type'] == 'pyin':
|
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# TODO: the next line allows us to resend a line to ipython if
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|
# %doctest_mode is on. In the future, IPython will send the
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# execution_count on subchannel, so this will need to be updated
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# once that happens
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if 'execution_count' in m['content']:
|
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s = "\nIn [%d]: "% m['content']['execution_count']
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else:
|
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s = "\nIn [00]: "
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s += m['content']['code'].strip()
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|
elif m['header']['msg_type'] == 'pyerr':
|
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|
c = m['content']
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|
s = "\n".join(map(strip_color_escapes,c['traceback']))
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|
s += c['ename'] + ":" + c['evalue']
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if s.find('\n') == -1:
|
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# somewhat ugly unicode workaround from
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# http://vim.1045645.n5.nabble.com/Limitations-of-vim-python-interface-with-respect-to-character-encodings-td1223881.html
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if isinstance(s,unicode):
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s=s.encode(vim_encoding)
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|
b.append(s)
|
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else:
|
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try:
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b.append(s.splitlines())
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except:
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b.append([l.encode(vim_encoding) for l in s.splitlines()])
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# make a newline so we can just start typing there
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if b[-1] != '':
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b.append([''])
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vim.command('normal G') # go to the end of the file
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|
if not startedin_vimipython:
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vim.command('normal p') # go back to where you were
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|
|
|
def get_child_msg(msg_id):
|
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# XXX: message handling should be split into its own process in the future
|
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while True:
|
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# get_msg will raise with Empty exception if no messages arrive in 1 second
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m= km.shell_channel.get_msg(timeout=1)
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if m['parent_header']['msg_id'] == msg_id:
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break
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else:
|
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#got a message, but not the one we were looking for
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echo('skipping a message on shell_channel','WarningMsg')
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return m
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|
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def print_prompt(prompt,msg_id=None):
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"""Print In[] or In[42] style messages"""
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global show_execution_count
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if show_execution_count and msg_id:
|
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# wait to get message back from kernel
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try:
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child = get_child_msg(msg_id)
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count = child['content']['execution_count']
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echo("In[%d]: %s" %(count,prompt))
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except Empty:
|
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echo("In[]: %s (no reply from IPython kernel)" % prompt)
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else:
|
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echo("In[]: %s" % prompt)
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|
|
|
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def with_subchannel(f,*args):
|
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"conditionally monitor subchannel"
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def f_with_update(*args):
|
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try:
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f(*args)
|
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|
if monitor_subchannel:
|
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update_subchannel_msgs()
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except AttributeError: #if km is None
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echo("not connected to IPython", 'Error')
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return f_with_update
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|
|
|
@with_subchannel
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def run_this_file():
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msg_id = send('run %s %s' % (run_flags, repr(vim.current.buffer.name),))
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print_prompt("In[]: run %s %s" % (run_flags, repr(vim.current.buffer.name)),msg_id)
|
|
|
|
|
|
@with_subchannel
|
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|
def run_this_line():
|
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|
msg_id = send(vim.current.line)
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|
print_prompt(vim.current.line, msg_id)
|
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|
|
|
|
@with_subchannel
|
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|
def run_command(cmd):
|
|
|
msg_id = send(cmd)
|
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|
print_prompt(cmd, msg_id)
|
|
|
if monitor_subchannel:
|
|
|
update_subchannel_msgs()
|
|
|
|
|
|
@with_subchannel
|
|
|
def run_these_lines():
|
|
|
r = vim.current.range
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|
|
lines = "\n".join(vim.current.buffer[r.start:r.end+1])
|
|
|
msg_id = send(lines)
|
|
|
#alternative way of doing this in more recent versions of ipython
|
|
|
#but %paste only works on the local machine
|
|
|
#vim.command("\"*yy")
|
|
|
#send("'%paste')")
|
|
|
#reselect the previously highlighted block
|
|
|
vim.command("normal gv")
|
|
|
if not reselect:
|
|
|
vim.command("normal ")
|
|
|
|
|
|
#vim lines start with 1
|
|
|
#print "lines %d-%d sent to ipython"% (r.start+1,r.end+1)
|
|
|
prompt = "lines %d-%d "% (r.start+1,r.end+1)
|
|
|
print_prompt(prompt,msg_id)
|
|
|
|
|
|
def dedent_run_this_line():
|
|
|
vim.command("left")
|
|
|
run_this_line()
|
|
|
vim.command("silent undo")
|
|
|
|
|
|
def dedent_run_these_lines():
|
|
|
r = vim.current.range
|
|
|
shiftwidth = vim.eval('&shiftwidth')
|
|
|
count = int(vim.eval('indent(%d+1)/%s' % (r.start,shiftwidth)))
|
|
|
vim.command("'<,'>" + "<"*count)
|
|
|
run_these_lines()
|
|
|
vim.command("silent undo")
|
|
|
|
|
|
#def set_this_line():
|
|
|
# # not sure if there's a way to do this, since we have multiple clients
|
|
|
# send("get_ipython().shell.set_next_input(\'%s\')" % vim.current.line.replace("\'","\\\'"))
|
|
|
# #print "line \'%s\' set at ipython prompt"% vim.current.line
|
|
|
# echo("line \'%s\' set at ipython prompt"% vim.current.line,'Statement')
|
|
|
|
|
|
|
|
|
def toggle_reselect():
|
|
|
global reselect
|
|
|
reselect=not reselect
|
|
|
print "F9 will%sreselect lines after sending to ipython"% (reselect and " " or " not ")
|
|
|
|
|
|
#def set_breakpoint():
|
|
|
# send("__IP.InteractiveTB.pdb.set_break('%s',%d)" % (vim.current.buffer.name,
|
|
|
# vim.current.window.cursor[0]))
|
|
|
# print "set breakpoint in %s:%d"% (vim.current.buffer.name,
|
|
|
# vim.current.window.cursor[0])
|
|
|
#
|
|
|
#def clear_breakpoint():
|
|
|
# send("__IP.InteractiveTB.pdb.clear_break('%s',%d)" % (vim.current.buffer.name,
|
|
|
# vim.current.window.cursor[0]))
|
|
|
# print "clearing breakpoint in %s:%d" % (vim.current.buffer.name,
|
|
|
# vim.current.window.cursor[0])
|
|
|
#
|
|
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#def clear_all_breakpoints():
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# send("__IP.InteractiveTB.pdb.clear_all_breaks()");
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# print "clearing all breakpoints"
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#
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#def run_this_file_pdb():
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# send(' __IP.InteractiveTB.pdb.run(\'execfile("%s")\')' % (vim.current.buffer.name,))
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# #send('run -d %s' % (vim.current.buffer.name,))
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# echo("In[]: run -d %s (using pdb)" % vim.current.buffer.name)
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EOF
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fun! <SID>toggle_send_on_save()
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if exists("s:ssos") && s:ssos == 0
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let s:ssos = 1
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au BufWritePost *.py :py run_this_file()
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echo "Autosend On"
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else
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let s:ssos = 0
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au! BufWritePost *.py
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echo "Autosend Off"
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endif
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endfun
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" Allow custom mappings
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if !exists('g:ipy_perform_mappings')
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let g:ipy_perform_mappings = 1
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endif
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if g:ipy_perform_mappings != 0
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map <silent> <F5> :python run_this_file()<CR>
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map <silent> <S-F5> :python run_this_line()<CR>
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map <silent> <F9> :python run_these_lines()<CR>
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map <silent> <leader>d :py get_doc_buffer()<CR>
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map <silent> <leader>s :py update_subchannel_msgs(); echo("vim-ipython shell updated",'Operator')<CR>
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map <silent> <S-F9> :python toggle_reselect()<CR>
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"map <silent> <C-F6> :python send('%pdb')<CR>
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"map <silent> <F6> :python set_breakpoint()<CR>
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"map <silent> <s-F6> :python clear_breakpoint()<CR>
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"map <silent> <F7> :python run_this_file_pdb()<CR>
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"map <silent> <s-F7> :python clear_all_breaks()<CR>
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imap <C-F5> <C-O><F5>
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imap <S-F5> <C-O><S-F5>
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imap <silent> <F5> <C-O><F5>
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map <C-F5> :call <SID>toggle_send_on_save()<CR>
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"" Example of how to quickly clear the current plot with a keystroke
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map <silent> <F12> :python run_command("plt.clf()")<cr>
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"" Example of how to quickly close all figures with a keystroke
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map <silent> <F11> :python run_command("plt.close('all')")<cr>
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"pi custom
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map <silent> <C-Return> :python run_this_file()<CR>
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map <silent> <C-s> :python run_this_line()<CR>
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imap <silent> <C-s> <C-O>:python run_this_line()<CR>
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map <silent> <M-s> :python dedent_run_this_line()<CR>
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vmap <silent> <C-S> :python run_these_lines()<CR>
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vmap <silent> <M-s> :python dedent_run_these_lines()<CR>
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map <silent> <M-c> I#<ESC>
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vmap <silent> <M-c> I#<ESC>
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map <silent> <M-C> :s/^\([ \t]*\)#/\1/<CR>
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vmap <silent> <M-C> :s/^\([ \t]*\)#/\1/<CR>
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endif
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command! -nargs=* IPython :py km_from_string("<args>")
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command! -nargs=0 IPythonClipboard :py km_from_string(vim.eval('@+'))
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command! -nargs=0 IPythonXSelection :py km_from_string(vim.eval('@*'))
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|
function! IPythonBalloonExpr()
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|
|
python << endpython
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|
|
word = vim.eval('v:beval_text')
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|
|
reply = get_doc(word)
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|
|
vim.command("let l:doc = %s"% reply)
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|
|
endpython
|
|
|
return l:doc
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|
|
endfunction
|
|
|
if has('balloon_eval')
|
|
|
set bexpr=IPythonBalloonExpr()
|
|
|
set ballooneval
|
|
|
endif
|
|
|
|
|
|
fun! CompleteIPython(findstart, base)
|
|
|
if a:findstart
|
|
|
" locate the start of the word
|
|
|
let line = getline('.')
|
|
|
let start = col('.') - 1
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|
|
while start > 0 && line[start-1] =~ '\k\|\.' "keyword
|
|
|
let start -= 1
|
|
|
endwhile
|
|
|
echo start
|
|
|
return start
|
|
|
else
|
|
|
" find months matching with "a:base"
|
|
|
let res = []
|
|
|
python << endpython
|
|
|
base = vim.eval("a:base")
|
|
|
findstart = vim.eval("a:findstart")
|
|
|
msg_id = km.shell_channel.complete(base, vim.current.line, vim.eval("col('.')"))
|
|
|
try:
|
|
|
m = get_child_msg(msg_id)
|
|
|
matches = m['content']['matches']
|
|
|
matches.insert(0,base) # the "no completion" version
|
|
|
# we need to be careful with unicode, because we can have unicode
|
|
|
# completions for filenames (for the %run magic, for example). So the next
|
|
|
# line will fail on those:
|
|
|
#completions= [str(u) for u in matches]
|
|
|
# because str() won't work for non-ascii characters
|
|
|
# and we also have problems with unicode in vim, hence the following:
|
|
|
completions = [s.encode(vim_encoding) for s in matches]
|
|
|
except Empty:
|
|
|
echo("no reply from IPython kernel")
|
|
|
completions=['']
|
|
|
## Additionally, we have no good way of communicating lists to vim, so we have
|
|
|
## to turn in into one long string, which can be problematic if e.g. the
|
|
|
## completions contain quotes. The next line will not work if some filenames
|
|
|
## contain quotes - but if that's the case, the user's just asking for
|
|
|
## it, right?
|
|
|
#completions = '["'+ '", "'.join(completions)+'"]'
|
|
|
#vim.command("let completions = %s" % completions)
|
|
|
## An alternative for the above, which will insert matches one at a time, so
|
|
|
## if there's a problem with turning a match into a string, it'll just not
|
|
|
## include the problematic match, instead of not including anything. There's a
|
|
|
## bit more indirection here, but I think it's worth it
|
|
|
for c in completions:
|
|
|
vim.command('call add(res,"'+c+'")')
|
|
|
endpython
|
|
|
"call extend(res,completions)
|
|
|
return res
|
|
|
endif
|
|
|
endfun
|
|
|
set completefunc=CompleteIPython
|
|
|
|
