├── LICENSE ├── README.md ├── __pycache__ ├── node.cpython-36.pyc └── regexes.cpython-36.pyc ├── examples └── codes │ ├── Bubble_sort.py │ ├── add.py │ ├── algo.flow │ ├── basic_io.py │ ├── basic_process.py │ ├── complex_conditional.py │ ├── conditional.py │ ├── everything.py │ ├── for.py │ ├── loops.py │ └── mix.py ├── flowchart.py ├── node.py ├── regexes.py ├── t.flow └── visualizer.py /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # code_to_flowchart 2 | TThe program will take as input - code, algorithm, workflow or manual and will give as output- a flowchart for it. 3 | The code is written in python,I am using pygame for displaying flowchart. 4 | first flowchart.py with some program as input frr eg: "python3 flowchart.py bubble_sort.py t.flow" , then python3 python3 viszulaizer.py t.flow 5 | -------------------------------------------------------------------------------- /__pycache__/node.cpython-36.pyc: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Vatsha/code_to_flowchart/bfd737ed193b03c08c5875f8488604202a909cba/__pycache__/node.cpython-36.pyc -------------------------------------------------------------------------------- /__pycache__/regexes.cpython-36.pyc: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Vatsha/code_to_flowchart/bfd737ed193b03c08c5875f8488604202a909cba/__pycache__/regexes.cpython-36.pyc -------------------------------------------------------------------------------- /examples/codes/Bubble_sort.py: -------------------------------------------------------------------------------- 1 | i=1 2 | while iA[j+1] 6 | Swap A[j] and A[j+1] 7 | j++ 8 | i++ 9 | 10 | -------------------------------------------------------------------------------- /examples/codes/add.py: -------------------------------------------------------------------------------- 1 | num = float(input("Enter a number:")) 2 | if num >= 0: 3 | if num == 0: 4 | print("Zero") 5 | else: 6 | print("pos.number") 7 | else: 8 | print("Neg.number") 9 | -------------------------------------------------------------------------------- /examples/codes/algo.flow: -------------------------------------------------------------------------------- 1 | welcome 2 | if you are new : 3 | its easy 4 | while writing: 5 | get visual diagram 6 | 7 | -------------------------------------------------------------------------------- /examples/codes/basic_io.py: -------------------------------------------------------------------------------- 1 | a = input() 2 | b = a - 1 3 | c = input() 4 | b = b + c 5 | print(b) -------------------------------------------------------------------------------- /examples/codes/basic_process.py: -------------------------------------------------------------------------------- 1 | a = 7 2 | a = a + 1 3 | b = a - 1 -------------------------------------------------------------------------------- /examples/codes/complex_conditional.py: -------------------------------------------------------------------------------- 1 | age = input() 2 | if age < 18: 3 | print("no voting for u") 4 | else: 5 | print("go vote lmao") -------------------------------------------------------------------------------- /examples/codes/conditional.py: -------------------------------------------------------------------------------- 1 | a = input() 2 | if a == 3.14: 3 | print("a is close to pi") -------------------------------------------------------------------------------- /examples/codes/everything.py: -------------------------------------------------------------------------------- 1 | a = input() 2 | b = input() 3 | while a != b: 4 | if a > b: 5 | a = a - b 6 | else: 7 | b = b - a 8 | 9 | print(a) -------------------------------------------------------------------------------- /examples/codes/for.py: -------------------------------------------------------------------------------- 1 | print("List Iteration") 2 | l = ["geeks", "for", "geeks"] 3 | for i in l: 4 | print(i) 5 | -------------------------------------------------------------------------------- /examples/codes/loops.py: -------------------------------------------------------------------------------- 1 | reps = input() 2 | while reps > 0: 3 | print("performing repetitive task") 4 | reps = reps - 1 5 | print("all done") -------------------------------------------------------------------------------- /examples/codes/mix.py: -------------------------------------------------------------------------------- 1 | n = input() 2 | if n == 2 : 3 | while n != 20 : 4 | print(n) 5 | 6 | if n == 3 : 7 | while n != 30 : 8 | print(n) 9 | n = n+3 10 | 11 | if n == 4 : 12 | while n !=40 : 13 | print(n) 14 | n = n+4 15 | 16 | print"table done" 17 | 18 | 19 | -------------------------------------------------------------------------------- /flowchart.py: -------------------------------------------------------------------------------- 1 | from node import * 2 | from regexes import * 3 | from sys import argv 4 | import pickle 5 | 6 | if len(argv) < 3: 7 | print("Usage: python3 %s [input code file] [output flowchart file]" % argv[0]) 8 | raise SystemExit() 9 | 10 | 11 | """ 12 | start = StartNode() 13 | a_in = InputNode("A") 14 | b_in = InputNode("B") 15 | a_lt_b = ConditionalNode("A < B") 16 | a_dec_b = Node("A = A - B") 17 | a_out = OutputNode("A") 18 | stop = StopNode() 19 | 20 | start.connect(a_in) 21 | a_in.connect(b_in) 22 | b_in.connect(a_lt_b) 23 | a_lt_b.if_yes(a_out) 24 | a_lt_b.if_no(a_dec_b) 25 | a_dec_b.connect(a_lt_b) 26 | a_out.connect(stop) 27 | 28 | walkthrough(start) 29 | """ 30 | 31 | 32 | lines = list(filter(lambda c: len(c), map(lambda line: line.rstrip().replace(" ", "~"), open(argv[1])))) 33 | 34 | 35 | def get_handle(code): 36 | nodes = list() 37 | while len(code): 38 | line = code[0] 39 | print(line) 40 | if line[-1] == ":": 41 | blank = ConnectorNode() 42 | print("block node") 43 | if loop.match(line): 44 | print("loop node") 45 | loop_br = ConditionalNode(loop.match(line).groups()[0]) 46 | body = list() 47 | while (len(code)-1) and code[1][0] == "~": 48 | body.append(code[1][1:]) 49 | del code[1] 50 | print("body: %s" % str(body)) 51 | body_flow = get_handle(body) 52 | print("body flow: %s" % str(body_flow)) 53 | 54 | loop_br.if_yes(body_flow[0]) 55 | body_flow[-1].connect(loop_br) 56 | loop_br.if_no(blank) 57 | if len(nodes): 58 | nodes[-1].connect(loop_br) 59 | else: 60 | nodes.append(loop_br) 61 | elif branch.match(line): 62 | print("conditional node") 63 | con_br = ConditionalNode(branch.match(line).groups()[0]) 64 | body = list() 65 | while (len(code)-1) and code[1][0] == "~": 66 | body.append(code[1][1:]) 67 | del code[1] 68 | print("body: %s"% str(body)) 69 | body_flow = get_handle(body) 70 | print("body flow: %s" % str(body_flow)) 71 | if len(code)-1 and code[1] == "else:": 72 | print("ELSE CLAUSE PRESENT") 73 | else_body = list() 74 | print(code) 75 | del code[1] 76 | while (len(code)-1) and code[1][0] == "~": 77 | print(code) 78 | else_body.append(code[1][1:]) 79 | del code[1] 80 | print("else body: %s" % str(else_body)) 81 | else_body_flow = get_handle(else_body) 82 | print("else body flow: %s" % str(else_body_flow)) 83 | con_br.if_yes(body_flow[0]) 84 | con_br.if_no(else_body_flow[0]) 85 | body_flow[-1].connect(blank) 86 | else_body_flow[-1].connect(blank) 87 | else: 88 | con_br.if_yes(body_flow[0]) 89 | body_flow[-1].connect(blank) 90 | con_br.if_no(blank) 91 | print(nodes) 92 | if len(nodes): 93 | nodes[-1].connect(con_br) 94 | else: 95 | nodes.append(con_br) 96 | 97 | nodes.append(blank) 98 | 99 | elif read.match(line): 100 | this = InputNode(read.match(line).groups()[0]) 101 | if len(nodes): 102 | nodes[-1].connect(this) 103 | nodes.append(this) 104 | elif write.match(line): 105 | this = OutputNode(write.match(line).groups()[0]) 106 | if len(nodes): 107 | nodes[-1].connect(this) 108 | nodes.append(this) 109 | else: 110 | this = Node(line) 111 | if len(nodes): 112 | nodes[-1].connect(this) 113 | nodes.append(this) 114 | del code[0] 115 | print(nodes) 116 | return nodes 117 | 118 | process = get_handle(lines) 119 | begin = StartNode() 120 | begin.connect(process[0]) 121 | end = StopNode() 122 | process[-1].connect(end) 123 | 124 | pickle.dump(begin, open(argv[2], "wb")) 125 | -------------------------------------------------------------------------------- /node.py: -------------------------------------------------------------------------------- 1 | class Node: 2 | def __init__(self, text, nxt=None): 3 | self.text = text 4 | self.incoming = list() 5 | self.connect(nxt) 6 | def connect(self, node): 7 | self.next = node 8 | if node and self not in node.incoming: 9 | node.incoming.append(self) 10 | def __repr__(self): 11 | return "%s(%s) to %s" % (self.__class__, self.text, str(self.next)) 12 | 13 | class StartNode(Node): 14 | def __init__(self, nxt=None): 15 | Node.__init__(self, "START", nxt) 16 | 17 | 18 | class StopNode(Node): 19 | def __init__(self): 20 | Node.__init__(self, "STOP", None) 21 | 22 | 23 | class InputNode(Node): 24 | def __init__(self, var, nxt=None): 25 | Node.__init__(self, "INPUT %s" % var, nxt) 26 | 27 | 28 | class OutputNode(Node): 29 | def __init__(self, var, nxt=None): 30 | Node.__init__(self, " %s" % var, nxt) 31 | 32 | 33 | class ConditionalNode(Node): 34 | def __init__(self, condition): 35 | Node.__init__(self, "%s?" % condition, None) 36 | def if_yes(self, node): 37 | self.yes = node 38 | def if_no(self, node): 39 | self.no = node 40 | def __repr__(self): 41 | return "%s(%s) no to %s" % (self.__class__, self.text, str(self.no)) 42 | 43 | 44 | class ConnectorNode(Node): 45 | def __init__(self): 46 | Node.__init__(self, "", None) 47 | -------------------------------------------------------------------------------- /regexes.py: -------------------------------------------------------------------------------- 1 | import re 2 | 3 | read = re.compile(r"([a-zA-Z]+) = input\(\)") 4 | write = re.compile(r"print\((.+)\)") 5 | loop = re.compile(r"while(.+)") 6 | branch = re.compile(r"if(.+)") 7 | -------------------------------------------------------------------------------- /t.flow: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Vatsha/code_to_flowchart/bfd737ed193b03c08c5875f8488604202a909cba/t.flow -------------------------------------------------------------------------------- /visualizer.py: -------------------------------------------------------------------------------- 1 | import pygame 2 | import pickle 3 | from sys import argv 4 | from node import * 5 | 6 | 7 | ## CONSTANTS ## 8 | SCREEN_SIZE = (800, 800) 9 | NODE_SIZE = (130, 50) 10 | NODE_VSPACE = 40 11 | NODE_HSPACE = 90 12 | 13 | NODE_COLOR = 0xffffff00 14 | LINE_COLOR = 0xffffff00 15 | GREEN = 0xFF00FF00 16 | WHITE = 0xFFFFFFFF 17 | BLUE = 0xFF0000FF 18 | 19 | NODEW, NODEH = NODE_SIZE 20 | pygame.font.init() 21 | FONT = pygame.font.Font(None, 25) 22 | 23 | def rhombus(rect): 24 | x, y, w, h = tuple(map(int, rect)) 25 | return [[x-3*w//4, y], [x, y-h//2], [x+3*w//4, y], [x, y+h//2]] 26 | 27 | def parallelogram(rect): 28 | x, y, w, h = tuple(map(int, rect)) 29 | return [[x-3*w//4, y+h//2], [x-w//2, y-h//2], [x+3*w//4, y-h//2], [x+w//2, y+h//2]] 30 | 31 | def connect(screen, obj, pos, npos): 32 | if id(obj) in drawn: 33 | pygame.draw.line(screen, WHITE, pos, drawn[id(obj)], 5) 34 | else: 35 | pygame.draw.line(screen, LINE_COLOR, pos, npos, 5) 36 | draw(obj, screen, *npos) 37 | 38 | def draw(obj, screen, x, y): 39 | if not isinstance(obj, Node): 40 | raise Exception("I don't know how to draw %s" % str(obj)) 41 | 42 | if type(obj) in (StartNode, StopNode): 43 | pygame.draw.ellipse(screen, BLUE, pygame.Rect(x-NODEW/2, y-NODEH/2, NODEW, NODEH)) 44 | elif type(obj) is Node: 45 | pygame.draw.rect(screen, NODE_COLOR, pygame.Rect(x-NODEW/2, y-NODEH/2, NODEW, NODEH)) 46 | elif type(obj) in (InputNode, OutputNode): 47 | pygame.draw.polygon(screen, NODE_COLOR, parallelogram((x, y, NODEW, NODEH))) 48 | elif type(obj) is ConnectorNode: 49 | pygame.draw.circle(screen, NODE_COLOR, (x,y), NODEH//2) 50 | elif type(obj) is ConditionalNode: 51 | pygame.draw.polygon(screen, GREEN, rhombus((x,y,NODEW,NODEH))) 52 | drawn[id(obj)] = (x, y-NODEH) 53 | connect(screen, obj.yes, (x, y), (x+NODE_HSPACE+NODEW, y)) 54 | connect(screen, obj.no, (x, y), (x, y+NODE_VSPACE+NODEH)) 55 | drawn[id(obj)] = (x, y-NODEH) 56 | if obj.next: 57 | connect(screen, obj.next, (x, y), (x, y+NODE_VSPACE+NODEH)) 58 | 59 | text = FONT.render(obj.text, 1, (255, 0, 0)) 60 | screen.blit(text, (x-NODEW//4,y-NODEH//4)) 61 | 62 | 63 | drawn = dict() 64 | 65 | if len(argv) < 2: 66 | print("Usage: pythons %s [flowchart file]" % argv[0]) 67 | raise SystemExit() 68 | begin = pickle.load(open(argv[1], "rb")) 69 | 70 | 71 | assert pygame.init() == (6, 0) 72 | 73 | SCREEN = pygame.display.set_mode((800, 800),pygame.RESIZABLE) 74 | pygame.display.set_caption("Flowchart") 75 | SCREEN.fill((0, 0, 0)) 76 | draw(begin, SCREEN, 100, 100) 77 | 78 | pygame.display.flip() 79 | while True: 80 | event = pygame.event.poll() 81 | if event.type == pygame.QUIT: 82 | break 83 | 84 | --------------------------------------------------------------------------------