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Diff for /mandoc/roff.7 between version 1.74 and 1.78

version 1.74, 2015/08/29 22:40:05 version 1.78, 2017/05/05 15:54:59
Line 492  Define a frame and place a picture in it.
Line 492  Define a frame and place a picture in it.
 This is a Heirloom extension and currently unsupported.  This is a Heirloom extension and currently unsupported.
 .Ss \&br  .Ss \&br
 Break the output line.  Break the output line.
 See  
 .Xr man 7  
 and  
 .Xr mdoc 7 .  
 .Ss \&break  .Ss \&break
 Break out of a  Break out of a
 .Sx \&while  .Sx \&while
Line 950  switches to normal font
Line 946  switches to normal font
 switches back to the previous font  switches back to the previous font
 .El  .El
 .Pp  .Pp
 This request takes effect only locally, may be overridden by macros  This request takes effect only locally and may be overridden
 and escape sequences, and is only supported in  by macros and escape sequences.
 .Xr man 7  
 for now.  
 .Ss \&ftr  .Ss \&ftr
 Translate font name.  Translate font name.
 This is a groff extension and currently ignored.  This is a groff extension and currently ignored.
Line 1068  COND evaluates to false.
Line 1062  COND evaluates to false.
 .It  .It
 If the first character of COND is  If the first character of COND is
 .Sq r ,  .Sq r ,
 it evalutes to true if the rest of COND is the name of an existing  it evaluates to true if the rest of COND is the name of an existing
 number register; otherwise, it evaluates to false.  number register; otherwise, it evaluates to false.
 .It  .It
 If COND starts with a parenthesis or with an optionally signed  If COND starts with a parenthesis or with an optionally signed
Line 1342  Currently unsupported.
Line 1336  Currently unsupported.
 Temporarily turn off line numbering.  Temporarily turn off line numbering.
 Currently unsupported.  Currently unsupported.
 .Ss \&nop  .Ss \&nop
 Exexute the rest of the input line as a request or macro line.  Execute the rest of the input line as a request or macro line.
 Currently unsupported.  Currently unsupported.
 .Ss \&nr  .Ss \&nr
 Define or change a register.  Define or change a register.
Line 1550  is discouraged.
Line 1544  is discouraged.
 Use  Use
 .Xr ln 1  .Xr ln 1
 instead.  instead.
   .Ss \&sp
   Break the output line and emit vertical space.
   Its syntax is as follows:
   .Pp
   .D1 Pf \. Cm \&sp Op Ar height
   .Pp
   The argument follows the syntax of
   .Sx Scaling Widths
   and defaults to one blank line
   .Pq Li 1v .
 .Ss \&spacewidth  .Ss \&spacewidth
 Set the space width from the font metrics file.  Set the space width from the font metrics file.
 This is a Heirloom extension and currently ignored.  This is a Heirloom extension and currently ignored.
Line 1584  Set tab stops.
Line 1588  Set tab stops.
 Takes an arbitrary number of arguments.  Takes an arbitrary number of arguments.
 Currently unsupported.  Currently unsupported.
 .Ss \&tc  .Ss \&tc
 Change tab repetion character.  Change tab repetition character.
 Currently unsupported.  Currently unsupported.
 .Ss \&TE  .Ss \&TE
 End a table context.  End a table context.
Line 1684  Notify on change of string or macro.
Line 1688  Notify on change of string or macro.
 This is a Heirloom extension and currently ignored.  This is a Heirloom extension and currently ignored.
 .Ss \&watchlength  .Ss \&watchlength
 On change, report the contents of macros and strings  On change, report the contents of macros and strings
 up to the sepcified length.  up to the specified length.
 This is a Heirloom extension and currently ignored.  This is a Heirloom extension and currently ignored.
 .Ss \&watchn  .Ss \&watchn
 Notify on change of register.  Notify on change of register.
Line 1779  minimum (not available in C)
Line 1783  minimum (not available in C)
 maximum (not available in C)  maximum (not available in C)
 .El  .El
 .Pp  .Pp
 There is no concept of precendence; evaluation proceeds from left to right,  There is no concept of precedence; evaluation proceeds from left to right,
 except when subexpressions are enclosed in parantheses.  except when subexpressions are enclosed in parentheses.
 Inside parentheses, whitespace is ignored.  Inside parentheses, whitespace is ignored.
 .Sh ESCAPE SEQUENCE REFERENCE  .Sh ESCAPE SEQUENCE REFERENCE
 The  The
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Removed from v.1.74  
changed lines
  Added in v.1.78
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