我在文件中有以下序列文本每個標題以“>”開頭的內容行數是隨機的>XM_024446048.1 PREDICTED: Homo sapiens mannosidase alpha class 2A member 1 (MAN2A1), transcript variant X2, mRNACAGCCCCCTGAGCGACTCCCTAATGTGACAGTAAAGAA>NM_001308028.1 Homo sapiens FER tyrosine kinase (FER), transcript variant 2, mRNACAGCCCCCGTGACGCGGGGTGGTGACTGGCTCGGTGGTGTGAC>NM_0013082323028.1 H STZ mRSN1ACAGCCCCCGTGACGCGGGGTGGTGACTGGCTCCGGAGTCTGAGGGGTTCGG我想以下列格式創建一個嵌套的字典：nested_dict = { 'sequence1': {'header': 'XM_024446048.1 PREDICTED: Homo sapiens mannosidase alpha class 2A member 1 (MAN2A1), transcript variant X2, mRNA','content': 'CAGCCCCCTGAGCGACTCCCTAATGTGACAGTAAAGAA'}, 'sequence2': {'header': 'NM_001308028.1 Homo sapiens FER tyrosine kinase (FER), transcript variant 2, mRNA','content': 'CAGCCCCCGTGACGCGGGGTGGTGACTGGCTCGGTGGTGTGAC'}, 'sequence3': {'header': 'NM_0013082323028.1 H STZ mRSN1A','content': 'CAGCCCCCGTGACGCGGGGTGGTGACTGGCTCCGGAGTCTGAGGGGTTCGG'}我被正則表達式困住了，有人可以幫助我嗎？
1 回答
蝴蝶刀刀
TA貢獻1801條經驗 獲得超8個贊
你可以用
^>
(?P<header>
[^\n()]*
(?:\((?P<name>[^\n()]+)\))?
[^()\n]*
)
[\n\r]
(?P<content>[\s\S]+?)(?=^>|\Z)
使用multiline和verbose標志，請參閱regex101.com 上的演示。
在Python：
rx = re.compile(r'''
^>
(?P<header>
[^\n()]*
(?:\((?P<name>[^\n()]+)\))?
[^()\n]*
)
[\n\r]
(?P<content>[\s\S]+?)(?=^>|\Z)''', re.M | re.X)
sequences = {"sequence{}".format(idx):
{"header": m.group('header'),
"content": m.group("content"),
"name": m.group('name')
}
for idx, m in enumerate(rx.finditer(data), 1)}
print(sequences)
這產生
{'sequence1': {'header': 'XM_024446048.1 PREDICTED: Homo sapiens mannosidase alpha class 2A member 1 (MAN2A1), transcript variant X2, mRNA', 'content': 'CAGCCCCC\nTGAGCGAC\nTCCCTAATGTG\nACAGTAAAGAA\n', 'name': 'MAN2A1'}, 'sequence2': {'header': 'NM_001308028.1 Homo sapiens FER tyrosine kinase (FER), transcript variant 2, mRNA', 'content': 'CAGCCC\nCCGTGACGC\nGGGGTGGTGACT\nGGCTC\nGGTGGT\nGTGAC\n', 'name': 'FER'}, 'sequence3': {'header': 'NM_0013082323028.1 H STZ mRSN1A', 'content': 'CAGCCC\nCCGTGACGC\nGGG\nGTGGTGA\nCTGGCTCCGGAGT\nCTGAGGGGTTCGG', 'name': None}}
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