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ultimate_LR_grammar.py
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ultimate_LR_grammar.py
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#
# @作者 ysl
# 使用文法构建项目集，耗时久
#
from LR1 import createItems, createLR_sheeet
all_g =[
('S_', ['Entry']),
##########变量声明部分###########
('VDCL', ['VDCL', ',', 'id']), #1
('VDCL', ['VDCL', ',', 'id', '=', 'AE']), #2
('VDCL', ['none']), #3
('VDCL', ['Type', 'id']), #4
('VDCL', ['Type', 'id', '=', 'AE']), #5
##########常量声明部分###########
('DCL', ['Head', 'TD']), #6
('DCL', ['none']), #7
('Head', ['const', 'Type']), #8
('Type', ['int']), #9
('Type', ['float']), #10
('Type', ['char']), #11
('TD', ['id', '=', 'c', ',', 'TD']), #12
('TD', ['id', '=', 'c']), #13
##########算术表达式声明部分###########
('AE', ['AE', '+', 'IT']), #{AE.v =IT.v + AE.v} #14
('AE', ['AE', '-', 'IT']), #{AE.v = IT.v - AE.v} #15
('AE', ['IT']), # {AE.v = IT.v} #16
('IT', ['IT', '*', 'F']), #{ IT.v = F.v * IT.v} #17
('IT', ['IT', '/', 'F']), #{ IT.v = F.v / IT.v} #18
('IT', ['IT', '%', 'F']), #{ IT.v = F.v % IT.v} #19
('IT', ['F']), #{IT.v = F.v} #20
('F', ['P']), #{F.v = P.v} #21
('F', ['-', 'P']), #{ F.v = - P.v} #22
('P', ['(', 'AE', ')']), #{P.v = AE.v} #23
('P', ['id']), #{P.v = entry(id).v} #24
('P', ['c']), #25
#########布尔表达式声明部分###########
('BE', ['BE_or', 'BT']), #26
('BE_or', ['BE', '||']), #27
('BE', ['BT']), #3 #28
('BT', ['BT_and', 'BF']), #4 #29
('BT_and', ['BT', '&&']), #5 #30
('BT', ['BF']), #6 #31
('BF', ['!', 'BF']), #7 #32
('BF', ['(', 'BE', ')']), #8 #33
('BF', ['AH', 'AE']), #9 #34
('BF', ['id', 'rop', 'id']), #35
('BF', ['id']), #10 #36
# if语句
('S_if', ['C', 'S']), #1 S.CHAIN = merge(C.CHAIN, Ss.CHAIN) #37
('C', ['if', 'BE']), #2 backpath(BE.TC, NXQ); C.CHAIN = BE.FC #38
('S_if', ['T', 'S']), #3 S.CHAIN = merge(T.CHAIN, S.CHAIN) #39
('T', ['C', 'S', 'else']), #4 q = NXQ; gencode(j, , , 0); backpath(C.CHAIN, NXQ); T.CHAIN = merge(S.CHAIN, q); #40
('S', ['id', '=', 'AE', ';']), #41
('S', ['VDCL', ';']), # 语句包含变量定义 #42
('S', ['DCL', ';']), # 语句包含常量定义 #43
('S', ['none']), #44
# do - while语句
('D', ['do']), #45
('U', ['D', 'S', 'while']), #46
('S_dw', ['U', '(', 'BE', ')', ';']), #47
#赋值表达式
('E', ['AE']), #48
('E', ['BE']), #49
('E', ['id', '=', 'AE']), #50
# for 语句
('FF', ['for', '(', 'E', ';']), #51
('A', ['FF', 'E', ';']), #52
('B', ['A', 'E', ')']), #53
('S_for', ['B', 'S']), # 表示for语句 #54
# 复合语句
('S', ['{', 'Ss', '}']), #55
('Ss', ['S']), #56
('Ss', ['Ss', 'S']), #57
# while 语句
('SSw', ['D_w', 'BE', ')']), #58
('S', ['S_w']), #59
# return 语句
('S_r', ['return', ';']), #60
('S_r', ['return', 'AE', ';']), #61
('S', ['S_r']), #62
('S', ['S_b']), #63
('S', ['S_c']), #64
# break 语句
('S_b', ['break', ';']), #65
# continue 语句
('S_c', ['continue', ';']), #66
# 函数定义
('FD', ['FDB', 'FB']), #67
('FDB', ['Type', 'id', '(', 'FDP', ')']), #68
('FDB', ['void', 'id', '(', 'FDP', ')']), #69
# 函数定义语句
('FDS', ['Type', 'id', '(', 'FDP', ')', ';']), #70
('FDS', ['void', 'id', '(', 'FDP', ')', ';']), #71
('FDP', ['Type', 'id']), #72
('FDP', ['FDP', ',', 'FDP']), #73
('FDP', ['none']), #74
('FB', ['{', 'Ss', '}']), #75
#函数定义列表
('FDD', ['none']), #76
('FDD', ['FD', 'FDD']), #77
('S', ['FDS']), #78
('AH', ['AE', 'rop']), #79
#主函数
('M', ['Ss', 'main']), #80
('Entry', ['Main', 'FDD']), #81
#添加
('S', ['S_if']), #82
('S', ['S_for']), #83
('S', ['S_dw']), #84
('S_w', ['SSw', 'S']), #85
# 函数调用
('FC', ['id', '(', 'FCP', ')']), #86
('FCP', ['none']), #87
('FCP', ['FCFS']), #88
('FCFS', ['FCF']), #89
('FCFS', ['FCFS', ',', 'FCF']), #90
('FCF', ['AE']), #91
('FCF', ['FC']), #92
('S', ['FC', ';']), #93
('Main', ['M', '(', ')', '{', 'Ss', '}']), #94
('P', ['FC']), #95
('D_w',['while', '(']) #96
]
items = createItems(all_g)
print('创建items成功')
sheet = createLR_sheeet(items, all_g)
import pickle
##
pickle.dump(items, open('data/all_LR1_items4.pkl', 'wb'))
pickle.dump((all_g, sheet), open('data/all_sheetLR14.pkl', 'wb'))
print('yes')