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import sublime

import sublime_plugin

import re

DEFINITION_KEY = 'MarkdownEditing-footnote-definitions'

REFERENCE_KEY = 'MarkdownEditing-footnote-references'

REFERENCE_REGEX = "\[\^([^\]]*)\]"

DEFINITION_REGEX = "^ *\[\^([^\]]*)\]:"

def get_footnote_references(view):

ids = {}

for ref in view.get_regions(REFERENCE_KEY):

if not re.match(DEFINITION_REGEX, view.substr(view.line(ref))):

id = view.substr(ref)[2:-1]

if id in ids:

ids[id].append(ref)

else:

ids[id] = [ref]

return ids

def get_footnote_definition_markers(view):

ids = {}

for defn in view.get_regions(DEFINITION_KEY):

id = view.substr(defn).strip()[2:-2]

ids[id] = defn

return ids

def get_footnote_identifiers(view):

ids = get_footnote_references(view).keys()

ids.sort()

return ids

def get_last_footnote_marker(view):

ids = [a for a in get_footnote_identifiers(view) if a.isdigit()]

if len(ids):

return int(ids[-1])

else:

return 0

def get_next_footnote_marker(view):

return get_last_footnote_marker(view) + 1

def is_footnote_definition(view):

line = view.substr(view.line(view.sel()[-1]))

return re.match(DEFINITION_REGEX, line)

def is_footnote_reference(view):

refs = view.get_regions(REFERENCE_KEY)

for ref in refs:

if ref.contains(view.sel()[0]):

return True

return False

def strip_trailing_whitespace(view, edit):

tws = view.find('\s+\Z', 0)

if tws:

view.erase(edit, tws)

class MarkFootnotes(sublime_plugin.EventListener):

def update_footnote_data(self, view):

view.add_regions(REFERENCE_KEY, view.find_all(REFERENCE_REGEX), '', 'cross', sublime.HIDDEN)

view.add_regions(DEFINITION_KEY, view.find_all(DEFINITION_REGEX), '', 'cross', sublime.HIDDEN)

def on_modified(self, view):

self.update_footnote_data(view)

def on_load(self, view):

self.update_footnote_data(view)

class GatherMissingFootnotesCommand(sublime_plugin.TextCommand):

def run(self, edit):

edit = self.view.begin_edit()

refs = get_footnote_identifiers(self.view)

defs = get_footnote_definition_markers(self.view)

missingnotes = [note_token for note_token in refs if not note_token in defs]

if len(missingnotes):

self.view.insert(edit, self.view.size(), "\n")

for note in missingnotes:

self.view.insert(edit, self.view.size(), '\n [^%s]: ' % note)

self.view.end_edit(edit)

def is_enabled(self):

return self.view.sel()

class InsertFootnoteCommand(sublime_plugin.TextCommand):

def run(self, edit):

edit = self.view.begin_edit()

startloc = self.view.sel()[-1].end()

markernum = get_next_footnote_marker(self.view)

if bool(self.view.size()):

targetloc = self.view.find('(\s|$)', startloc).begin()

else:

targetloc = 0

self.view.insert(edit, targetloc, '[^%s]' % markernum)

self.view.insert(edit, self.view.size(), '\n [^%s]: ' % markernum)

self.view.run_command('set_motion', {"inclusive": True, "motion": "move_to", "motion_args": {"extend": True, "to": "eof"}})

if self.view.settings().get('command_mode'):

self.view.run_command('enter_insert_mode', {"insert_command": "move", "insert_args": {"by": "characters", "forward": True}})

self.view.end_edit(edit)

def is_enabled(self):

return self.view.sel()

class GoToFootnoteDefinitionCommand(sublime_plugin.TextCommand):

def run(self, edit):

defs = get_footnote_definition_markers(self.view)

regions = self.view.get_regions(REFERENCE_KEY)

sel = self.view.sel()

if len(sel) == 1:

target = None

selreg = sel[0]

for region in regions:

if selreg.intersects(region):

target = self.view.substr(region)[2:-1]

if not target:

try:

target = self.view.substr(self.view.find(REFERENCE_REGEX, sel[-1].end()))[2:-1]

except:

pass

if target:

self.view.sel().clear()

self.view.sel().add(defs[target])

self.view.show(defs[target])

def is_enabled(self):

return self.view.sel()

class GoToFootnoteReferenceCommand(sublime_plugin.TextCommand):

def run(self, edit):

refs = get_footnote_references(self.view)

match = is_footnote_definition(self.view)

if match:

target = match.groups()[0]

self.view.sel().clear()

[self.view.sel().add(a) for a in refs[target]]

self.view.show(refs[target][0])

def is_enabled(self):

return self.view.sel()

class MagicFootnotesCommand(sublime_plugin.TextCommand):

def run(self, edit):

if (is_footnote_definition(self.view)):

self.view.run_command('go_to_footnote_reference')

elif (is_footnote_reference(self.view)):

self.view.run_command('go_to_footnote_definition')

else:

self.view.run_command('insert_footnote')

def is_enabled(self):

return self.view.sel()

class SwitchToFromFootnoteCommand(sublime_plugin.TextCommand):

def run(self, edit):

if (is_footnote_definition(self.view)):

self.view.run_command('go_to_footnote_reference')

else:

self.view.run_command('go_to_footnote_definition')

def is_enabled(self):

return self.view.sel()

class SortFootnotesCommand(sublime_plugin.TextCommand):

def run(self, edit):

edit = self.view.begin_edit()

strip_trailing_whitespace(self.view, edit)

self.view.end_edit(edit)

edit = self.view.begin_edit()

defs = get_footnote_definition_markers(self.view)

notes = {}

erase = []

keyorder = map(lambda x: self.view.substr(x)[2:-1], self.view.get_regions(REFERENCE_KEY))

keys = []

[keys.append(r) for r in keyorder if not r in keys]

for (key, item) in defs.items():

fnend = self.view.find('(\s*\Z|\n\s*\n(?!\ {4,}))', item.end())

fnreg = sublime.Region(item.begin(), fnend.end())

notes[key] = self.view.substr(fnreg).strip()

erase.append(fnreg)

erase.sort()

erase.reverse()

[self.view.erase(edit, reg) for reg in erase]

self.view.end_edit(edit)

import pprint

pprint.pprint(notes)

pprint.pprint(keys)

edit = self.view.begin_edit()

for key in keys:

self.view.insert(edit, self.view.size(), '\n\n ' + notes[key])

self.view.end_edit(edit)

def is_enabled(self):

return self.view.sel()