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Iliyan Angelov
2025-12-01 06:50:10 +02:00
parent 91f51bc6fe
commit 62c1fe5951
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Backend/venv/lib/python3.12/site-packages/nltk/app/collocations_app.py Normal file
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# Natural Language Toolkit: Collocations Application
# Much of the GUI code is imported from concordance.py; We intend to merge these tools together
# Copyright (C) 2001-2025 NLTK Project
# Author: Sumukh Ghodke <sghodke@csse.unimelb.edu.au>
# URL: <https://www.nltk.org/>
# For license information, see LICENSE.TXT
#
import queue as q
import threading
from tkinter import (
END,
LEFT,
SUNKEN,
Button,
Frame,
IntVar,
Label,
Menu,
OptionMenu,
Scrollbar,
StringVar,
Text,
Tk,
)
from tkinter.font import Font
from nltk.corpus import (
alpino,
brown,
cess_cat,
cess_esp,
floresta,
indian,
mac_morpho,
machado,
nps_chat,
sinica_treebank,
treebank,
)
from nltk.probability import FreqDist
from nltk.util import in_idle
CORPUS_LOADED_EVENT = "<<CL_EVENT>>"
ERROR_LOADING_CORPUS_EVENT = "<<ELC_EVENT>>"
POLL_INTERVAL = 100
_DEFAULT = "English: Brown Corpus (Humor)"
_CORPORA = {
"Catalan: CESS-CAT Corpus": lambda: cess_cat.words(),
"English: Brown Corpus": lambda: brown.words(),
"English: Brown Corpus (Press)": lambda: brown.words(
categories=["news", "editorial", "reviews"]
),
"English: Brown Corpus (Religion)": lambda: brown.words(categories="religion"),
"English: Brown Corpus (Learned)": lambda: brown.words(categories="learned"),
"English: Brown Corpus (Science Fiction)": lambda: brown.words(
categories="science_fiction"
),
"English: Brown Corpus (Romance)": lambda: brown.words(categories="romance"),
"English: Brown Corpus (Humor)": lambda: brown.words(categories="humor"),
"English: NPS Chat Corpus": lambda: nps_chat.words(),
"English: Wall Street Journal Corpus": lambda: treebank.words(),
"Chinese: Sinica Corpus": lambda: sinica_treebank.words(),
"Dutch: Alpino Corpus": lambda: alpino.words(),
"Hindi: Indian Languages Corpus": lambda: indian.words(files="hindi.pos"),
"Portuguese: Floresta Corpus (Portugal)": lambda: floresta.words(),
"Portuguese: MAC-MORPHO Corpus (Brazil)": lambda: mac_morpho.words(),
"Portuguese: Machado Corpus (Brazil)": lambda: machado.words(),
"Spanish: CESS-ESP Corpus": lambda: cess_esp.words(),
}
class CollocationsView:
_BACKGROUND_COLOUR = "#FFF" # white
def __init__(self):
self.queue = q.Queue()
self.model = CollocationsModel(self.queue)
self.top = Tk()
self._init_top(self.top)
self._init_menubar()
self._init_widgets(self.top)
self.load_corpus(self.model.DEFAULT_CORPUS)
self.after = self.top.after(POLL_INTERVAL, self._poll)
def _init_top(self, top):
top.geometry("550x650+50+50")
top.title("NLTK Collocations List")
top.bind("<Control-q>", self.destroy)
top.protocol("WM_DELETE_WINDOW", self.destroy)
top.minsize(550, 650)
def _init_widgets(self, parent):
self.main_frame = Frame(
parent, dict(background=self._BACKGROUND_COLOUR, padx=1, pady=1, border=1)
)
self._init_corpus_select(self.main_frame)
self._init_results_box(self.main_frame)
self._init_paging(self.main_frame)
self._init_status(self.main_frame)
self.main_frame.pack(fill="both", expand=True)
def _init_corpus_select(self, parent):
innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
self.var = StringVar(innerframe)
self.var.set(self.model.DEFAULT_CORPUS)
Label(
innerframe,
justify=LEFT,
text=" Corpus: ",
background=self._BACKGROUND_COLOUR,
padx=2,
pady=1,
border=0,
).pack(side="left")
other_corpora = list(self.model.CORPORA.keys()).remove(
self.model.DEFAULT_CORPUS
)
om = OptionMenu(
innerframe,
self.var,
self.model.DEFAULT_CORPUS,
command=self.corpus_selected,
*self.model.non_default_corpora()
)
om["borderwidth"] = 0
om["highlightthickness"] = 1
om.pack(side="left")
innerframe.pack(side="top", fill="x", anchor="n")
def _init_status(self, parent):
self.status = Label(
parent,
justify=LEFT,
relief=SUNKEN,
background=self._BACKGROUND_COLOUR,
border=0,
padx=1,
pady=0,
)
self.status.pack(side="top", anchor="sw")
def _init_menubar(self):
self._result_size = IntVar(self.top)
menubar = Menu(self.top)
filemenu = Menu(menubar, tearoff=0, borderwidth=0)
filemenu.add_command(
label="Exit", underline=1, command=self.destroy, accelerator="Ctrl-q"
)
menubar.add_cascade(label="File", underline=0, menu=filemenu)
editmenu = Menu(menubar, tearoff=0)
rescntmenu = Menu(editmenu, tearoff=0)
rescntmenu.add_radiobutton(
label="20",
variable=self._result_size,
underline=0,
value=20,
command=self.set_result_size,
)
rescntmenu.add_radiobutton(
label="50",
variable=self._result_size,
underline=0,
value=50,
command=self.set_result_size,
)
rescntmenu.add_radiobutton(
label="100",
variable=self._result_size,
underline=0,
value=100,
command=self.set_result_size,
)
rescntmenu.invoke(1)
editmenu.add_cascade(label="Result Count", underline=0, menu=rescntmenu)
menubar.add_cascade(label="Edit", underline=0, menu=editmenu)
self.top.config(menu=menubar)
def set_result_size(self, **kwargs):
self.model.result_count = self._result_size.get()
def _init_results_box(self, parent):
innerframe = Frame(parent)
i1 = Frame(innerframe)
i2 = Frame(innerframe)
vscrollbar = Scrollbar(i1, borderwidth=1)
hscrollbar = Scrollbar(i2, borderwidth=1, orient="horiz")
self.results_box = Text(
i1,
font=Font(family="courier", size="16"),
state="disabled",
borderwidth=1,
yscrollcommand=vscrollbar.set,
xscrollcommand=hscrollbar.set,
wrap="none",
width="40",
height="20",
exportselection=1,
)
self.results_box.pack(side="left", fill="both", expand=True)
vscrollbar.pack(side="left", fill="y", anchor="e")
vscrollbar.config(command=self.results_box.yview)
hscrollbar.pack(side="left", fill="x", expand=True, anchor="w")
hscrollbar.config(command=self.results_box.xview)
# there is no other way of avoiding the overlap of scrollbars while using pack layout manager!!!
Label(i2, text=" ", background=self._BACKGROUND_COLOUR).pack(
side="left", anchor="e"
)
i1.pack(side="top", fill="both", expand=True, anchor="n")
i2.pack(side="bottom", fill="x", anchor="s")
innerframe.pack(side="top", fill="both", expand=True)
def _init_paging(self, parent):
innerframe = Frame(parent, background=self._BACKGROUND_COLOUR)
self.prev = prev = Button(
innerframe,
text="Previous",
command=self.previous,
width="10",
borderwidth=1,
highlightthickness=1,
state="disabled",
)
prev.pack(side="left", anchor="center")
self.next = next = Button(
innerframe,
text="Next",
command=self.__next__,
width="10",
borderwidth=1,
highlightthickness=1,
state="disabled",
)
next.pack(side="right", anchor="center")
innerframe.pack(side="top", fill="y")
self.reset_current_page()
def reset_current_page(self):
self.current_page = -1
def _poll(self):
try:
event = self.queue.get(block=False)
except q.Empty:
pass
else:
if event == CORPUS_LOADED_EVENT:
self.handle_corpus_loaded(event)
elif event == ERROR_LOADING_CORPUS_EVENT:
self.handle_error_loading_corpus(event)
self.after = self.top.after(POLL_INTERVAL, self._poll)
def handle_error_loading_corpus(self, event):
self.status["text"] = "Error in loading " + self.var.get()
self.unfreeze_editable()
self.clear_results_box()
self.freeze_editable()
self.reset_current_page()
def handle_corpus_loaded(self, event):
self.status["text"] = self.var.get() + " is loaded"
self.unfreeze_editable()
self.clear_results_box()
self.reset_current_page()
# self.next()
collocations = self.model.next(self.current_page + 1)
self.write_results(collocations)
self.current_page += 1
def corpus_selected(self, *args):
new_selection = self.var.get()
self.load_corpus(new_selection)
def previous(self):
self.freeze_editable()
collocations = self.model.prev(self.current_page - 1)
self.current_page = self.current_page - 1
self.clear_results_box()
self.write_results(collocations)
self.unfreeze_editable()
def __next__(self):
self.freeze_editable()
collocations = self.model.next(self.current_page + 1)
self.clear_results_box()
self.write_results(collocations)
self.current_page += 1
self.unfreeze_editable()
def load_corpus(self, selection):
if self.model.selected_corpus != selection:
self.status["text"] = "Loading " + selection + "..."
self.freeze_editable()
self.model.load_corpus(selection)
def freeze_editable(self):
self.prev["state"] = "disabled"
self.next["state"] = "disabled"
def clear_results_box(self):
self.results_box["state"] = "normal"
self.results_box.delete("1.0", END)
self.results_box["state"] = "disabled"
def fire_event(self, event):
# Firing an event so that rendering of widgets happen in the mainloop thread
self.top.event_generate(event, when="tail")
def destroy(self, *e):
if self.top is None:
return
self.top.after_cancel(self.after)
self.top.destroy()
self.top = None
def mainloop(self, *args, **kwargs):
if in_idle():
return
self.top.mainloop(*args, **kwargs)
def unfreeze_editable(self):
self.set_paging_button_states()
def set_paging_button_states(self):
if self.current_page == -1 or self.current_page == 0:
self.prev["state"] = "disabled"
else:
self.prev["state"] = "normal"
if self.model.is_last_page(self.current_page):
self.next["state"] = "disabled"
else:
self.next["state"] = "normal"
def write_results(self, results):
self.results_box["state"] = "normal"
row = 1
for each in results:
self.results_box.insert(str(row) + ".0", each[0] + " " + each[1] + "\n")
row += 1
self.results_box["state"] = "disabled"
class CollocationsModel:
def __init__(self, queue):
self.result_count = None
self.selected_corpus = None
self.collocations = None
self.CORPORA = _CORPORA
self.DEFAULT_CORPUS = _DEFAULT
self.queue = queue
self.reset_results()
def reset_results(self):
self.result_pages = []
self.results_returned = 0
def load_corpus(self, name):
self.selected_corpus = name
self.collocations = None
runner_thread = self.LoadCorpus(name, self)
runner_thread.start()
self.reset_results()
def non_default_corpora(self):
copy = []
copy.extend(list(self.CORPORA.keys()))
copy.remove(self.DEFAULT_CORPUS)
copy.sort()
return copy
def is_last_page(self, number):
if number < len(self.result_pages):
return False
return self.results_returned + (
number - len(self.result_pages)
) * self.result_count >= len(self.collocations)
def next(self, page):
if (len(self.result_pages) - 1) < page:
for i in range(page - (len(self.result_pages) - 1)):
self.result_pages.append(
self.collocations[
self.results_returned : self.results_returned
+ self.result_count
]
)
self.results_returned += self.result_count
return self.result_pages[page]
def prev(self, page):
if page == -1:
return []
return self.result_pages[page]
class LoadCorpus(threading.Thread):
def __init__(self, name, model):
threading.Thread.__init__(self)
self.model, self.name = model, name
def run(self):
try:
words = self.model.CORPORA[self.name]()
from operator import itemgetter
text = [w for w in words if len(w) > 2]
fd = FreqDist(tuple(text[i : i + 2]) for i in range(len(text) - 1))
vocab = FreqDist(text)
scored = [
((w1, w2), fd[(w1, w2)] ** 3 / (vocab[w1] * vocab[w2]))
for w1, w2 in fd
]
scored.sort(key=itemgetter(1), reverse=True)
self.model.collocations = list(map(itemgetter(0), scored))
self.model.queue.put(CORPUS_LOADED_EVENT)
except Exception as e:
print(e)
self.model.queue.put(ERROR_LOADING_CORPUS_EVENT)
# def collocations():
# colloc_strings = [w1 + ' ' + w2 for w1, w2 in self._collocations[:num]]
def app():
c = CollocationsView()
c.mainloop()
if __name__ == "__main__":
app()
__all__ = ["app"]