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d458fa2c7b
When viewing sbase's man pages the date displayed at the bottom is
the current date rather than the date entered in the <program>.1
file.
According to this:
https://mandoc.bsd.lv/mdoc/details/date.html
The traditional man date format used by sbase (.Dd year-month-day)
is no longer recommended and no longer supported by GNU troff or
Heirloom Docs and as a result the current date is displayed instead.
Although this format is still accepted by mandoc for backward
compatibility.
For portability it states the standard mdoc date format should be
used instead: .Dd month day, year
I applied the following patch to sbase's last commit b30fb56 and
it fixes the issue.
75 lines
1.4 KiB
Groff
75 lines
1.4 KiB
Groff
.Dd February 16, 2016
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.Dt TSORT 1
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.Os sbase
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.Sh NAME
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.Nm tsort
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.Nd topological sort
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.Sh SYNOPSIS
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.Nm
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.Op Ar file
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.Sh DESCRIPTION
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.Nm
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topologically sorts a graph.
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The graph is read either from
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.Ar file
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or from standard input.
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The result is not optimized for any particular usage.
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Loops are detected and reported to standard error, but does not stop the
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sort.
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.Pp
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The input is a list of edges (vertex pairs), where
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the edge is directed from the first vertex to the
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second vertex.
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.Sh OPTIONS
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None.
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.Sh EXIT STATUS
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.Bl -tag -width Ds
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.It 0
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The graph as successfully sorted.
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.It 1
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The graph as successfully sorted, but contained loops.
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.It > 1
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An error occurred.
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.El
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.Sh EXAMPLES
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.Bd -literal -offset left
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The input
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a a
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a b
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a c
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a c
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a d
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b c
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c b
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e f
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or equivalently
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a a a b a c a c a d
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b c c b e f
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represents the graph
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┌─┐
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↓ │
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┏━━━┓
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┌──────┃ a ┃──────┐
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│ ┗━━━┛ │
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│ │ │ │
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↓ ↓ ↓ ↓
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┏━━━┓───→┏━━━┓ ┏━━━┓
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┃ b ┃ ┃ c ┃ ┃ d ┃
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┗━━━┛←───┗━━━┛ ┗━━━┛
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┏━━━┓ ┏━━━┓
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┃ e ┃───→┃ f ┃
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┗━━━┛ ┗━━━┛
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.Ed
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.Sh STANDARDS
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The
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.Nm
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utility is compliant with the
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.St -p1003.1-2013
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specification.
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