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DoC_main.py
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DoC_main.py
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import io
import sys
import Parser_Py
from Scannar import Scanner
from DoC_project import Ui_MainWindow
from PyQt5.QtWidgets import QApplication, QMainWindow, QFileDialog
import networkx as nx
import matplotlib
import matplotlib.pyplot as plt
matplotlib.use("TkAgg")
class MainApp(QMainWindow, Ui_MainWindow):
def __init__(self) -> None:
QMainWindow.__init__(self)
self.G = None
self.graph = None
self.setupUi(self)
self.parser_obj = None
self.apply_scanner.clicked.connect(self.scan)
self.apply_parser.clicked.connect(self.parse)
self.copy.clicked.connect(self.copied)
self.paste.clicked.connect(self.pasted)
self.toolButton.clicked.connect(self.browse)
self.parse_btn.clicked.connect(self.parse_btn_fn)
self.textBrowser.clear()
self.textBrowser_2.clear()
self.statusBar.showMessage("Ready...")
def copied(self):
if self.textBrowser.toPlainText() == '':
self.statusBar.showMessage("Nothing to copy!")
else:
self.textBrowser.selectAll()
self.textBrowser.copy()
self.statusBar.showMessage("copied!")
def pasted(self):
self.textEdit_2.clear()
self.textEdit_2.paste()
self.statusBar.showMessage("pasted!")
def browse(self):
file_name, _ = QFileDialog.getOpenFileName(self, "Open file", "", "Text files (*.txt);;All files (*)")
if file_name:
try:
with open(file_name, 'r') as inp:
input_text = inp.read()
self.textEdit.setText(input_text)
self.scan()
except Exception as e:
self.statusBar.showMessage("Error" + " " + str(e))
def parse_btn_fn(self):
if self.textBrowser.toPlainText() == '':
self.statusBar.showMessage("Nothing to parse!")
else:
self.textBrowser.selectAll()
self.textBrowser.copy()
self.textEdit_2.clear()
self.textEdit_2.paste()
self.tabWidget.setCurrentIndex(1)
self.parse()
def scan(self):
self.textBrowser.clear()
found_text = False
input_text = self.textEdit.toPlainText()
path_input = self.lineEdit.text()
if path_input == '':
if input_text == '':
self.statusBar.showMessage("No input!!")
else:
found_text = True
else:
try:
with open(path_input, 'r') as inp:
input_text = inp.read()
found_text = True
self.textEdit.setText(input_text)
except Exception as e:
self.statusBar.showMessage("Error" + " " + str(e))
if found_text:
scr = Scanner(input_text)
scr.scan()
output_list = scr.token_list
for output_tup in output_list:
self.textBrowser.append(output_tup[0] + " , " + output_tup[1])
self.statusBar.showMessage("Done...")
else:
self.textBrowser.clear()
def parse(self):
self.textBrowser_2.clear()
token_text = self.textEdit_2.toPlainText()
types = []
values = []
i = 0
if token_text == '':
self.statusBar.showMessage("Empty input!")
return
for line in io.StringIO(token_text):
try:
i += 1
line_list = line.split(',')
values.append(line_list[0].strip().lower())
types.append(line_list[1].strip().lower())
except Exception as e:
self.statusBar.showMessage(f"Error at line {str(i)}: ({line}) ({str(e)})")
return
self.parser_obj = Parser_Py.Parser(token_text, types, values)
try:
self.parser_obj.run()
st = self.parser_obj.print_tree()
self.textBrowser_2.append(st)
nodes_list = self.parser_obj.nodes_table
edges_list = self.parser_obj.edges_table
self.G = nx.DiGraph(ordering='out')
for node_number, node in nodes_list.items():
self.G.add_node(
node_number, value=node[0] + '\n' + node[1], shape=node[2])
self.G.add_edges_from(edges_list)
self.parser_obj.clear_tables()
self.draw(self.parser_obj.same_rank_nodes)
self.statusBar.showMessage("Done...")
except Exception as e:
self.statusBar.showMessage("Error" + " " + str(e))
return
def draw(self, same_rank_nodes):
graph = self.G
pos = pygraphviz_layout_with_rank(
graph, prog='dot', sameRank=same_rank_nodes)
labels = dict((n, d['value']) for n, d in graph.nodes(data=True))
# #e0e1e3 #19232d #455364
plt.rcParams['axes.facecolor'] = '#19232d'
f = plt.figure("Syntax tree", figsize=(10, 7), layout='constrained')
for shape in ['s', 'o']:
nx.draw_networkx_nodes(graph, pos, node_color='#455364', node_size=2200, node_shape=shape,
nodelist=[sNode[0] for sNode in
filter(lambda x: x[1]["shape"] == shape, graph.nodes(data=True))])
nx.draw_networkx_edges(graph, pos, arrows=True, arrowsize=38, edge_color='#e0e1e3')
nx.draw_networkx_labels(graph, pos, labels=labels, font_size=14, font_color='#e0e1e3',
font_family='Arial Rounded MT Bold')
f.canvas.manager.window.wm_geometry("+%d+%d" % (600, 10))
plt.show()
def pygraphviz_layout_with_rank(G, prog="dot", root=None, sameRank=[], args=""):
try:
import pygraphviz
except ImportError:
raise ImportError('requires pygraphviz ',
'http://networkx.lanl.gov/pygraphviz ',
'(not available for Python3)')
if root is not None:
args += "-Groot=%s" % root
A = nx.nx_agraph.to_agraph(G)
for sameNodeHeight in sameRank:
if type(sameNodeHeight) == str:
print("node \"%s\" has no peers in its rank group" %
sameNodeHeight)
A.add_subgraph(sameNodeHeight, rank="same")
A.layout(prog=prog, args=args)
node_pos = {}
for n in G:
node = pygraphviz.Node(A, n)
try:
xx, yy = node.attr["pos"].split(',')
node_pos[n] = (float(xx), float(yy))
except:
print("no position for node", n)
node_pos[n] = (0.0, 0.0)
return node_pos
app = QApplication(sys.argv)
window = MainApp()
window.show()
app.exec_()