通过匹配第一行单词来选择整段的正则表达式

Question

我用下面的正则表达式来匹配一个以“摘要”开头的段落，

([^\']*(?=Summary)[^\']*)

但它与所有文本匹配：regex101a

也试过

(?<=Summary).*?(?=]\.)

这与任何东西都不匹配：regex101b

我认为这与文本文件的格式有关。

下面是一个示例：

COMMENT     REVIEWED REFSEQ: This record has been curated by NCBI staff. The
            reference sequence was derived from AC105339.9 and FJ695193.1.
            This sequence is a reference standard in the RefSeqGene project.

        Summary: Adaptor protein complex 3 (AP-3 complex) is a
        heterotrimeric protein complex involved in the formation of
        clathrin-coated synaptic vesicles. The protein encoded by this gene
        represents the beta subunit of the neuron-specific AP-3 complex and
        was first identified as the target antigen in human paraneoplastic
        neurologic disorders. The encoded subunit binds clathrin and is
        phosphorylated by a casein kinase-like protein, which mediates
        synaptic vesicle coat assembly. Defects in this gene are a cause of
        early-onset epileptic encephalopathy. [provided by RefSeq, Feb
        2017].
PRIMARY     REFSEQ_SPAN         PRIMARY_IDENTIFIER PRIMARY_SPAN        COMP
            1-35060             AC105339.9         88079-123138
            35061-35259         FJ695193.1         1-199               c
            35260-57628         AC105339.9         123337-145705

这就是我的目标：

    Summary: Adaptor protein complex 3 (AP-3 complex) is a
    heterotrimeric protein complex involved in the formation of
    clathrin-coated synaptic vesicles. The protein encoded by this gene
    represents the beta subunit of the neuron-specific AP-3 complex and
    was first identified as the target antigen in human paraneoplastic
    neurologic disorders. The encoded subunit binds clathrin and is
    phosphorylated by a casein kinase-like protein, which mediates
    synaptic vesicle coat assembly. Defects in this gene are a cause of
    early-onset epileptic encephalopathy. [provided by RefSeq, Feb
    2017].

Answer 1

我认为这是一个与您的段落相匹配的健壮模式(使用Multiline标志)：

^\s+$\n^([ \t]+)Summary.*(?:\n\1[ \t]*\S.*)+

工作示例：https://regex101.com/r/P6KlBa/2

• “摘要”可以作为行中的第一个单词出现。我们从匹配空行开始，以确保“汇总”在段落的开头。
• ([ \t]+)捕获每行开头的空格数。有些口味有\h for 水平空间。
• Summary.* --第一行以“摘要”开头。
• (\n\1([ \t]+)*\S.*)* -匹配更多的非空行。