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  • 大小: 13.6MB
    文件類型: .rar
    金幣: 1
    下載: 0 次
    發布日期: 2023-07-14
  • 語言: Python
  • 標簽: PYTHON??編譯原理??

資源簡介

用python開發的小型語法分析器,用處不大,但可以剛學習編譯原理要做實驗的小同學參考

資源截圖

代碼片段和文件信息

import?State

fo?=?open(“MC.txt“?“r“)
#token元組#
token?=?[]
state?=?[]

State.init()

#=============================Main======================================#
line?=?fo.read(1)
#讀取每一句#
while?line?!=?‘‘:
????if?line?==?‘?‘?or?line?==?‘\n‘?or?line?==?‘\t‘:#空白狀態處理
????????line?=?fo.read(1)
????elif?line?==?‘(‘?or?line?==?‘)‘?or?line?==?‘{‘?or?line?==?‘}‘?or?line?==?‘;‘?or?line?==?‘‘:#判斷括號狀態
????????token.append(line)
????????state.append(‘Brackets‘)
????????line?=?fo.read(1)
????elif?line?==?‘+‘?or?line?==?‘-‘?or?line?==?‘*‘?or?line?==?‘/‘?or?line?==?‘%‘?or?line?==?‘=‘?or?line?==?‘|‘?or?line?==?‘&‘?or?line?==?‘^‘?or?line?==?‘!‘:
????????token.append(line)
????????state.append(‘Operators‘)
????????line?=?fo.read(1)
????elif?(line?>=?‘a‘?and?line?<=?‘z‘)?or?(line?>=?‘A‘?and?line?<=?‘Z‘)?or?line?==?‘_‘:#字母狀態處理
????????line?=?State.alphabetState(line?fo?token?state)
????elif?(line?>=??‘0‘?and?line?<=?‘9‘):#數字狀態片理
????????line?=?State.numberState(line?fo?token?state)
????else:#錯誤狀態
????????print(“ERROR“)
????????fo.close()#關閉文件
????????break
#讀取每一句#

for?i?in?range(0?len(token)):
????print(token[i]?+?‘\t‘?+?state[i])
#=============================Main======================================#


?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????398453??2014-11-20?08:14??CompilerTheory\chapter01.pptx

?????文件?????334930??2014-11-20?08:14??CompilerTheory\chapter02.pptx

?????文件????1107456??2014-11-20?08:14??CompilerTheory\chapter03a.ppt

?????文件????1324544??2014-11-20?08:14??CompilerTheory\chapter03b.ppt

?????文件????1165824??2014-11-20?08:14??CompilerTheory\chapter03c.ppt

?????文件????1007616??2014-11-20?08:14??CompilerTheory\chapter04a.ppt

?????文件?????????48??2014-11-20?11:35??CompilerTheory\Parsing\Parsing\init.txt

?????文件????????231??2014-11-20?11:34??CompilerTheory\Parsing\Parsing\MC.txt

?????文件???????1292??2014-11-20?11:39??CompilerTheory\Parsing\Parsing\Parsing.py

?????文件???????2091??2014-11-20?11:38??CompilerTheory\Parsing\Parsing\Parsing.pyproj

?????文件???????1052??2014-11-20?11:39??CompilerTheory\Parsing\Parsing\State.py

?????文件???????1298??2014-11-20?11:39??CompilerTheory\Parsing\Parsing\__pycache__\State.cpython-34.pyc

?????文件????????826??2014-11-20?08:08??CompilerTheory\Parsing\Parsing.sln

????..A..H.?????22016??2014-11-20?11:39??CompilerTheory\Parsing\Parsing.v12.suo

?????文件?????129173??2014-11-20?08:14??CompilerTheory\實驗一詞法分析程序.docx

?????文件????1588946??2014-10-15?22:15??CompilerTheory\詞法分析器示例\示例P1.jpg

?????文件????1651616??2014-10-15?22:28??CompilerTheory\詞法分析器示例\示例P2.jpg

?????文件????1506133??2014-10-15?22:17??CompilerTheory\詞法分析器示例\示例P3.jpg

?????文件????1434227??2014-10-15?22:12??CompilerTheory\詞法分析器示例\示例P4.jpg

?????文件????6087478??2014-11-20?08:14??CompilerTheory\詞法分析器示例.rar

?????目錄??????????0??2014-11-20?11:39??CompilerTheory\Parsing\Parsing\__pycache__

?????目錄??????????0??2014-11-20?11:39??CompilerTheory\Parsing\Parsing

?????目錄??????????0??2014-11-20?08:08??CompilerTheory\Parsing

?????目錄??????????0??2014-11-20?08:15??CompilerTheory\詞法分析器示例

?????目錄??????????0??2014-11-20?11:39??CompilerTheory

-----------?---------??----------?-----??----

?????????????17765250????????????????????25


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