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@ -1,4 +1,4 @@
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.Dd 2015-10-08
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.Dd 2020-05-15
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.Dt NL 1
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.Os sbase
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.Sh NAME
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@ -28,6 +28,23 @@ If no
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is given
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.Nm
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reads from stdin.
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.Pp
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.Nm
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treats the input text as a collection of logical pages divided into
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logical page sections.
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Each logical page consists of a header section, a body
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section and a footer section.
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Sections may be empty.
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The start of each section is indicated by a single delimiting line, one of:
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.Bl -column "\e:\e:\e: " "header " -offset indent
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.It Em "Line" Ta Em "Start of"
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.It \e:\e:\e: header
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.It \e:\e: body
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.It \e: footer
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.El
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.Pp
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If the input text contains no delimiting line then all of the input text
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belongs to a single logical page body section.
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.Sh OPTIONS
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.Bl -tag -width Ds
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.It Fl p
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