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Diff for /src/usr.bin/mandoc/mandoc.1 between version 1.138 and 1.139

version 1.138, 2017/07/04 14:40:30 version 1.139, 2017/07/06 22:58:44
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 date format  date format
 .Dq "Month dd, yyyy"  .Dq "Month dd, yyyy"
 instead.  instead.
   .It Sy "lower case character in document title"
   .Pq mdoc , man
   The title is still used as given in the
   .Ic \&Dt
   or
   .Ic \&TH
   macro.
 .It Sy "duplicate RCS id"  .It Sy "duplicate RCS id"
 A single manual page contains two copies of the RCS identifier for  A single manual page contains two copies of the RCS identifier for
 the same operating system.  the same operating system.
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 Fuzzy string matching revealed that the argument of an  Fuzzy string matching revealed that the argument of an
 .Ic \&Sh  .Ic \&Sh
 macro is similar, but not identical to a standard section name.  macro is similar, but not identical to a standard section name.
   .It Sy "unterminated quoted argument"
   .Pq roff
   Macro arguments can be enclosed in double quote characters
   such that space characters and macro names contained in the quoted
   argument need not be escaped.
   The closing quote of the last argument of a macro can be omitted.
   However, omitting it is not recommended because it makes the code
   harder to read.
 .It Sy "useless macro"  .It Sy "useless macro"
 .Pq mdoc  .Pq mdoc
 A  A
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 arguments is longer than one byte and ends with a trailing delimiter.  arguments is longer than one byte and ends with a trailing delimiter.
 Consider inserting a blank such that the delimiter becomes a separate  Consider inserting a blank such that the delimiter becomes a separate
 argument, thus moving it out of the scope of the macro.  argument, thus moving it out of the scope of the macro.
   .It Sy "fill mode already enabled, skipping"
   .Pq man
   A
   .Ic \&fi
   request occurs even though the document is still in fill mode,
   or already switched back to fill mode.
   It has no effect.
   .It Sy "fill mode already disabled, skipping"
   .Pq man
   An
   .Ic \&nf
   request occurs even though the document already switched to no-fill mode
   and did not switch back to fill mode yet.
   It has no effect.
 .It Sy "function name without markup"  .It Sy "function name without markup"
 .Pq mdoc  .Pq mdoc
 A word followed by an empty pair of parentheses occurs on a text line.  A word followed by an empty pair of parentheses occurs on a text line.
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 or  or
 .Ic \&Xr  .Ic \&Xr
 macro.  macro.
   .It Sy "whitespace at end of input line"
   .Pq mdoc , man , roff
   Whitespace at the end of input lines is almost never semantically
   significant \(em but in the odd case where it might be, it is
   extremely confusing when reviewing and maintaining documents.
   .It Sy "bad comment style"
   .Pq roff
   Comment lines start with a dot, a backslash, and a double-quote character.
   The
   .Nm
   utility treats the line as a comment line even without the backslash,
   but leaving out the backslash might not be portable.
 .El  .El
 .Ss Warnings related to the document prologue  .Ss Warnings related to the document prologue
 .Bl -ohang  .Bl -ohang
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 There is no  There is no
 .Ic \&TH  .Ic \&TH
 macro, or it has no arguments.  macro, or it has no arguments.
 .It Sy "lower case character in document title"  
 .Pq mdoc , man  
 The title is still used as given in the  
 .Ic \&Dt  
 or  
 .Ic \&TH  
 macro.  
 .It Sy "missing manual section, using \(dq\(dq"  .It Sy "missing manual section, using \(dq\(dq"
 .Pq mdoc , man  .Pq mdoc , man
 A  A
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 .It Sy "missing Os macro, using \(dq\(dq"  .It Sy "missing Os macro, using \(dq\(dq"
 .Pq mdoc  .Pq mdoc
 The default or current system is not shown in this case.  The default or current system is not shown in this case.
 .It Sy "duplicate prologue macro"  
 .Pq mdoc  
 One of the prologue macros occurs more than once.  
 The last instance overrides all previous ones.  
 .It Sy "late prologue macro"  .It Sy "late prologue macro"
 .Pq mdoc  .Pq mdoc
 A  A
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 or  or
 .Ic \&Os  .Ic \&Os
 macro occurs after some non-prologue macro, but still takes effect.  macro occurs after some non-prologue macro, but still takes effect.
 .It Sy "skipping late title macro"  
 .Pq mdoc  
 The  
 .Ic \&Dt  
 macro appears after the first non-prologue macro.  
 Traditional formatters cannot handle this because  
 they write the page header before parsing the document body.  
 Even though this technical restriction does not apply to  
 .Nm ,  
 traditional semantics is preserved.  
 The late macro is discarded including its arguments.  
 .It Sy "prologue macros out of order"  .It Sy "prologue macros out of order"
 .Pq mdoc  .Pq mdoc
 The prologue macros are not given in the conventional order  The prologue macros are not given in the conventional order
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 list, a  list, a
 .Ic \&Ta  .Ic \&Ta
 macro occurs as the first macro on a line, which is not portable.  macro occurs as the first macro on a line, which is not portable.
 .It Sy "fill mode already enabled, skipping"  
 .Pq man  
 A  
 .Ic \&fi  
 request occurs even though the document is still in fill mode,  
 or already switched back to fill mode.  
 It has no effect.  
 .It Sy "fill mode already disabled, skipping"  
 .Pq man  
 An  
 .Ic \&nf  
 request occurs even though the document already switched to no-fill mode  
 and did not switch back to fill mode yet.  
 It has no effect.  
 .It Sy "line scope broken"  .It Sy "line scope broken"
 .Pq man  .Pq man
 While parsing the next-line scope of the previous macro,  While parsing the next-line scope of the previous macro,
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 .El  .El
 .Ss "Warnings related to bad macro arguments"  .Ss "Warnings related to bad macro arguments"
 .Bl -ohang  .Bl -ohang
 .It Sy "unterminated quoted argument"  
 .Pq roff  
 Macro arguments can be enclosed in double quote characters  
 such that space characters and macro names contained in the quoted  
 argument need not be escaped.  
 The closing quote of the last argument of a macro can be omitted.  
 However, omitting it is not recommended because it makes the code  
 harder to read.  
 .It Sy "duplicate argument"  .It Sy "duplicate argument"
 .Pq mdoc  .Pq mdoc
 A  A
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 are passed through to the formatters in any case.  are passed through to the formatters in any case.
 Given that the text before the tab character will be filled,  Given that the text before the tab character will be filled,
 it is hard to predict which tab stop position the tab will advance to.  it is hard to predict which tab stop position the tab will advance to.
 .It Sy "whitespace at end of input line"  
 .Pq mdoc , man , roff  
 Whitespace at the end of input lines is almost never semantically  
 significant \(em but in the odd case where it might be, it is  
 extremely confusing when reviewing and maintaining documents.  
 .It Sy "new sentence, new line"  .It Sy "new sentence, new line"
 .Pq mdoc  .Pq mdoc
 A new sentence starts in the middle of a text line.  A new sentence starts in the middle of a text line.
 Start it on a new input line to help formatters produce correct spacing.  Start it on a new input line to help formatters produce correct spacing.
 .It Sy "bad comment style"  
 .Pq roff  
 Comment lines start with a dot, a backslash, and a double-quote character.  
 The  
 .Nm  
 utility treats the line as a comment line even without the backslash,  
 but leaving out the backslash might not be portable.  
 .It Sy "invalid escape sequence"  .It Sy "invalid escape sequence"
 .Pq roff  .Pq roff
 An escape sequence has an invalid opening argument delimiter, lacks the  An escape sequence has an invalid opening argument delimiter, lacks the
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 .El  .El
 .Ss "Errors related to roff, mdoc, and man code"  .Ss "Errors related to roff, mdoc, and man code"
 .Bl -ohang  .Bl -ohang
   .It Sy "duplicate prologue macro"
   .Pq mdoc
   One of the prologue macros occurs more than once.
   The last instance overrides all previous ones.
   .It Sy "skipping late title macro"
   .Pq mdoc
   The
   .Ic \&Dt
   macro appears after the first non-prologue macro.
   Traditional formatters cannot handle this because
   they write the page header before parsing the document body.
   Even though this technical restriction does not apply to
   .Nm ,
   traditional semantics is preserved.
   The late macro is discarded including its arguments.
 .It Sy "input stack limit exceeded, infinite loop?"  .It Sy "input stack limit exceeded, infinite loop?"
 .Pq roff  .Pq roff
 Explicit recursion limits are implemented for the following features,  Explicit recursion limits are implemented for the following features,
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Removed from v.1.138  
changed lines
  Added in v.1.139