|
|
马上注册，结交更多好友，享用更多功能^_^
您需要 登录 才可以下载或查看，没有账号？立即注册
x
本帖最后由 Robot_Steve 于 2021-11-10 21:50 编辑
最近闲来无事，想着办法“玩”
于是写了一个“编程语言”，至少满足了编程语言三大特性：
1. 变量
2. 函数
3. 关键字
注：部分东西没有加上，如:函数的参数不是一个变量
先上源码（GUI 由 tkinter 完成）:
- import tkinter.messagebox as msg
- from tkinter import *
- root = Tk() # 创建主窗口
- root.title("Title") # 设置标题
- root.geometry("550x340+370+240") # 设置窗口大小
- root.resizable(0, 0) # 设置窗口的尺寸不可改变
- # 菜单
- mb = Menu(root)
- root.config(menu=mb)
- # 定义 “主区块” 类
- class WinMian:
- def __init__(self):
- self.home()
- def home(self):
- self.homefrome = Frame(root, bg="Black", width=530,height=340)
- self.homefrome.place(x=0,y=0)
- # 命令框
- self.text = Text(self.homefrome, width=74, height=20, bg="LightSlateGray",
- fg="White")
- self.text.place(x=3,y=3)
- self.jg = Text(self.homefrome,width=74,height=5, bg="LightSlateGray")
- self.jg.place(x=3,y=270)
- def run(): # 运行函数
- commands_texts = (self.text.get("0.0","end").replace("\t","")).split("\n")
- commands_texts.pop()
- function_list = [] # 储存函数名
- function_drit = {} # 储存函数相对应的参数
- function_code_drit = {} # 储存函数相对应的代码
- global_var = {}
- local_var = {}
- def RunMainStartFunction(infunction=False, code=None, functionname=None,
- parmeter=None):
- global functioncode, parmeters_lens
- # print("Coommands",commands_text)
- # 定义关键字
- def hhh(name):
- name_list = []
- error = False
- for w2 in name:
- name_list.append(w2)
- commandd = list(commands_text[0])
- while name_list != []:
- if name_list[0] == commandd[0]:
- name_list.pop(0)
- commandd.pop(0)
- else:
- msg.showerror("Error", "SyntaxError"+"\nThe Wrong: "+commands_texts[0])
- error = True
- break
- # print(commandd)
- return_list = []
- if error == False:
- string = ""
- while commandd != []:
- # print(commandd)
- if commandd[0] != "^":
- string = string + commandd[0]
- commandd.pop(0)
- if commandd == []:
- return_list.append(string)
- break
- else:
- return_list.append(string)
- string = ""
- commandd.pop(0)
- if commandd == []:
- break
- return return_list
- if infunction == True:
- commands_text = code
- if "pm:" in commands_text[0]:
- r = hhh("pm:")
- functionparmeter = function_drit[functionname]
- get_parmeters_list = functionparmeter.keys()
- parmeters_list = []
- for w5 in get_parmeters_list:
- parmeters_list.append(w5) # 将键（函数参数）存入列表
- parmeters_list_lens = len(parmeters_list) # 函数参数长度
- set_parmeters_lens = len(r) # 设置参数的长度
- # print(parmeters_list, parmeters_list_lens, set_parmeters_lens)
- if set_parmeters_lens == parmeters_list_lens: # 当长度符合条件时...
- while r != []:
- if r[0] == "None": # 当用户放弃设置当前参数时，恢复默认（None）
- function_drit2 = function_drit[functionname]
- function_drit2[parmeters_list[0]] = None
- function_drit[functionname] = function_drit2
- r.pop(0)
- parmeters_list.pop(0)
- else:
- function_drit2 = function_drit[functionname]
- function_drit2[parmeters_list[0]] = r[0]
- function_drit[functionname] = function_drit2
- r.pop(0)
- parmeters_list.pop(0)
- commands_text.pop(0)
- else:
- msg.showerror("Error", "ParameterSettingFailedError"+"\nThe Wrong: "+commands_texts[0])
- functionparmeters = function_drit[functionname]
- if functionparmeters != None:
- get_parmeters = functionparmeters.keys()
- parmeterslist = []
- for w5 in get_parmeters:
- parmeterslist.append(w5)
- parmeters_lens = len(parmeterslist) # 参数长度
- parmeter_lens = len(parmeter)
- parmeterslist2 = parmeterslist.copy()
- while parmeterslist2 != []:
- if functionparmeters[parmeterslist2[0]] == None:
- parmeterslist2.pop(0)
- else:
- parmeterslist2.pop(0)
- parmeters_lens = parmeters_lens - 1
- if parmeters_lens == parmeter_lens:
- while parmeter != []:
- functionparmeters[parmeterslist[0]] = parmeter[0]
- parmeter.pop(0)
- parmeterslist.pop(0)
- else:
- msg.showerror("Error", "SyntaxError"+"\nThe Wrong: "+commands_texts[0])
- else:
- # ...
- commands_text = commands_texts.copy()
- # 运行 函数
- # print(commands_text)
- true = "True"
- false = "False"
- while commands_text != []:
- if "printf:" in commands_text[0]:
- r = hhh("printf:")
- string = r[0]
- while "/b" in string: # 转移符捕捉
- string_list = list(string)
- hindex = string_list.index("/")
- if string_list[hindex + 1] == "b":
- string_list.pop(hindex)
- string_list.pop(hindex)
- string_list.insert(hindex, "\n")
- import_str = ""
- for w3 in string_list:
- import_str = import_str + w3
- string = import_str
- # print(r)
- if string in global_var:
- if len(r) == 1:
- self.jg.insert(END, str(global_var[string][1]) + "\n")
- if len(r) == 2:
- if r[1] in global_var:
- self.jg.insert(END, str(global_var[string][1]) + str(global_var[r[1]][1]))
- elif r[1] in local_var:
- self.jg.insert(END, str(global_var[string][1]) + str(local_var[r[1]][1]))
- else:
- self.jg.insert(END, r[0] + r[1])
- elif string in local_var:
- yesglobal = local_var[string][2]
- print(yesglobal)
- if infunction == True:
- if yesglobal == functionname or yesglobal == None:
- if len(r) == 1:
- self.jg.insert(END, str(local_var[string][1]) + "\n")
- if len(r) == 2:
- if r[1] in global_var:
- self.jg.insert(END, str(local_var[string][1]) + str(global_var[r[1]][1]))
- elif r[1] in local_var:
- self.jg.insert(END, str(local_var[string][1]) + str(local_var[r[1]][1]))
- else:
- self.jg.insert(END, r[0] + r[1])
- else:
- msg.showerror("Error","NameError")
- else:
- if yesglobal == None:
- if len(r) == 1:
- self.jg.insert(END, str(local_var[string][1]) + "\n")
- if len(r) == 2:
- if r[1] in global_var:
- self.jg.insert(END, str(local_var[string][1]) + str(global_var[r[1]][1]))
- elif r[1] in local_var:
- self.jg.insert(END, str(local_var[string][1]) + str(local_var[r[1]][1]))
- else:
- self.jg.insert(END, r[0] + r[1])
- else:
- msg.showerror("Error", "NameError")
- else:
- if len(r) == 1:
- self.jg.insert(END,string+"\n")
- if len(r) == 2:
- if r[1] in global_var:
- self.jg.insert(END, r[0] + str(global_var[r[1]][1]) )
- elif r[1] in local_var:
- yesglobal2 = local_var[r[1]][2]
- if infunction == True:
- if yesglobal2 == functionname or yesglobal2 == None:
- self.jg.insert(END, r[0] + str(local_var[r[1]][1]))
- else:
- msg.showerror("Error", "NameError")
- else:
- self.jg.insert(END, r[0] + str(local_var[r[1]][1]))
- else:
- self.jg.insert(END,r[0]+r[1])
- commands_text.pop(0)
- elif "function:" in commands_text[0]:
- r = hhh("function:")
- try:
- function_name = r[0] # 函数名
- except:
- msg.showerror("Error", "ParameterSettingFailedError"+"\nThe Wrong: "+commands_texts[0])
- else:
- r.pop(0)
- function_parameter_drit = {} # 函数参数
- have_parameter = False
- if r == []:
- # 如果没有设置参数，默认为 None
- pass
- else:
- for w4 in r:
- function_parameter_drit[w4] = None
- have_parameter = True
- commands_text.pop(0)
- code = []
- if commands_text[0] == "{":
- commands_text.pop(0)
- while commands_text[0] != "}":
- code.append(commands_text[0].replace("\t",""))
- commands_text.pop(0)
- if commands_text == []:
- msg.showerror("Error", "SyntaxError")
- function_code_drit[function_name] = code
- function_list.append(function_name)
- if have_parameter == False:
- function_drit[function_name] = None
- else:
- function_drit[function_name] = function_parameter_drit
- # print(function_list,function_drit,function_code_drit)
- else:
- msg.showerror("Error", "SyntaxError"+"\nThe Wrong: "+commands_texts[0])
- commands_text.pop(0)
- elif "value:" in commands_text[0]:
- h2 = hhh("value:")
- if len(h2) == 4:
- if h2[1] == "int":
- try:
- intnum = int(h2[2])
- except:
- msg.showerror("Error", "TypeError")
- else:
- if infunction == True:
- if h2[3] == true:
- global_var[h2[0]] = ["int",intnum,functionname]
- elif h2[3] == false:
- local_var[h2[0]] = ["int",intnum,functionname]
- else:
- msg.showerror("Error", "SyntaxError")
- else:
- if h2[3] == true:
- global_var[h2[0]] = ["int",intnum,None]
- elif h2[3] == false:
- local_var[h2[0]] = ["int",intnum,None]
- else:
- msg.showerror("Error", "SyntaxError")
- elif h2[1] == "str":
- try:
- strnum = str(h2[2])
- except:
- msg.showerror("Error", "TypeError")
- else:
- if infunction == True:
- if h2[3] == true:
- global_var[h2[0]] = ["str",strnum,functionname]
- elif h2[3] == false:
- local_var[h2[0]] = ["str",strnum,functionname]
- else:
- msg.showerror("Error", "SyntaxError")
- else:
- if h2[3] == true:
- global_var[h2[0]] = ["str",strnum,None]
- elif h2[3] == false:
- local_var[h2[0]] = ["str",strnum,None]
- else:
- msg.showerror("Error", "SyntaxError")
- elif h2[1] == "float":
- try:
- floatnum = float(h2[2])
- except:
- msg.showerror("Error", "TypeError")
- else:
- if infunction == True:
- if h2[3] == true:
- global_var[h2[0]] = ["float", floatnum, functionname]
- elif h2[3] == false:
- local_var[h2[0]] = ["float", floatnum, functionname]
- else:
- msg.showerror("Error", "SyntaxError")
- else:
- if h2[3] == true:
- global_var[h2[0]] = ["float", floatnum, None]
- elif h2[3] == false:
- local_var[h2[0]] = ["float", floatnum, None]
- else:
- msg.showerror("Error", "SyntaxError")
- else:
- msg.showerror("Error", "ValueError")
- else:
- msg.showerror("Error", "SyntaxError")
- commands_text.pop(0)
- print(global_var, local_var)
- elif "#" in commands_text[0]:
- hhh("#") # 行注释
- commands_text.pop(0)
- elif commands_text[0] == "":
- # 当用户为了美观不写任何代码时，忽略此行
- commands_text.pop(0)
- else:
- function_name_check = function_list.copy()
- if function_name_check != []:
- self.have = False
- while function_name_check != []:
- if function_name_check[0] in commands_text[0]:
- functioncode = function_code_drit[function_name_check[0]]
- self.have = True
- break
- else:
- function_name_check.pop(0)
- if self.have != False:
- r1 = hhh(function_name_check[0]+":")
- RunMainStartFunction(True, functioncode,function_name_check[0],r1)
- commands_text.pop(0)
- else:
- msg.showerror("Error", "NameError1"+"\nThe Wrong: "+commands_texts[0])
- break
- else:
- msg.showerror("Error", "NameError"+"\nThe Wrong: "+commands_texts[0])
- break
- self.have = False
- RunMainStartFunction()
- # 创建文件菜单
- file = Menu(mb, tearoff=False)
- file.add_command(label="Open ", command="")
- file.add_command(label="Save ", command="")
- file.add_command(label="Run ", command=run)
- file.add_separator()
- file.add_command(label="Exit ", command=root.quit)
- mb.add_cascade(label=" File ", menu=file)
- WinMian()
- mainloop()
运行后在最上边的文本文档里边儿输入此代码，可以看到解析的结果哟(可以加上缩进，[b]但注意一定要是缩进[/b]):
- value:e1^int^123^False
- function:hhh^a^b
- {
- pm:None^abcdefg
- printf:hello, world
- value:ints^int^123^False
- printf:ints
- printf:e1
- }
- # ...
- hhh:12
- printf:========
- function:exercise
- {
- value:e2^str^hello123456^False
- printf:e2
- printf:e1^e2
- }
- exercise:
你也可以由此源代码继续发展，获得一个真正的编程语言。
我有注释，你可以查看代码进行继续编写
定义关键字的函数: hhh()
我把它单独提炼了出来
代码：
- # 定义关键字
- def hhh(name):
- name_list = []
- error = False
- for w2 in name:
- name_list.append(w2)
-
- """
- commands_text 是一个列表是用户输入的内容。
- commands_text = self.text.get("0.0","end").split("\n")
- """
- commandd = list(commands_text[0])
- while name_list != []:
- if name_list[0] == commandd[0]:
- name_list.pop(0)
- commandd.pop(0)
- else:
- msg.showerror("Error", "SyntaxError"+"\nThe Wrong: "+commands_texts[0])
- error = True
- break
- # print(commandd)
- return_list = []
- if error == False:
- string = ""
- while commandd != []:
- # print(commandd)
- if commandd[0] != "^": # 我在这儿以“^”作为分隔符
- string = string + commandd[0]
- commandd.pop(0)
-
- if commandd == []:
- return_list.append(string)
- break
- else:
- return_list.append(string)
- string = ""
- commandd.pop(0)
- if commandd == []:
- break
-
- return return_list # 返回值是一个列表
- # 例如: printf:hello, world^12345
- # 返回: ["hello, world", 12345]
|
|
( 粤ICP备18085999号-1 | 粤公网安备 44051102000585号)
狗仔卡
发表于 2020-4-3 19:22:40
置顶卡
千斤顶
显身卡
发表于 2020-4-3 19:28:20
楼主