我有一根绳子如下:
Features: -Includes hanging accessories. -Artist: William-Adolphe Bouguereau. -Made with 100pct cotton canvas. -100pct Anti-shrink pine wood bars and Epson anti-fade ultra chrome inks. -100pct Hand-made and inspected in the U.S.A. -Orientation: Horizontal. **Subject: -Figures/Nautical and beach.** Gender: -Unisex/Both. Size: -Mini 17'' and under/Small 18''-24''/Medium 25''-32''/Large 33''-40''/Oversized 41'' and above. Style: -Fine art. Color: -Blue. Country of Manufacture: -United States. Product Type: -Print of painting. Region: -Europe. Primary Art Material: -Canvas. Dimensions: -8'' H x 12'' W x 0.75'' D: 0.72 lb. -12'' H x 18'' W x 0.75'' D: 1.14 lbs. -12'' H x 18'' W x 1.5'' D: 2.45 lbs. -18'' H x 26'' W x 0.75'' D: 1.44 lbs. Paintings Prints Tori White Wildon Photography Photos Posters Abstract Black D cor Designs Framed Hazelwood Hokku Home Landscape Oil Accent 075 12 15 18 26 40 60 8 D H W x 1 1017 1824 2532 holidays, christmas gift gifts for girls boys
我必须在特定的单词后面找到单词。
我想提取上面例子中单词"Subject"
后面的单词。
输出如下:
Subject: -Figures/Nautical and beach.
我试过下面的正则表达式:
re.compile('(?<=subject)(.{30}(?:\s|.))',re.I)
但是主题关键字后面没有固定的字数要指定,所以我不能指定确切的字数。
我该如何在“peroid”或“space”停下来。没有具体的停下来的标准。
正则表达式:
代码:
您的
(?<=subject)(.{30}(?:\s|.))
正则表达式在subject
之后声明位置。然后抓取除换行符以外的30个字符,然后匹配空白或除换行符以外的任何字符。这并不真正符合您的要求,因为子字符串可以是任何长度。您可以将基于交替的正则表达式与捕获组一起使用:
见regex demo
详细信息:
subject:
-文本subject:
字符串\s*
-0+空格([^.]+|\S+)
组1捕获1个或多个非周期符号或1+非空白符号注意:
[^.]+
与空格匹配,\S+
与空格不匹配,^{的顺序在这里很重要。如果\s*
之后的子字符串以点开头,则\S+
将匹配该子字符串,直到出现空白。Python demo:
尝试:
Demo
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