NAME

proof − troff output interpreter

SYNOPSIS

­proof [ -mmag ] [ -/nview ] [ ­-F ­dir ] [ ­-d ] [ ­file ]

DESCRIPTION

­Proof reads troff(1) intermediate language from ­file or standard input and simulates the resulting pages on the screen. 

After a page of text is displayed, ­proof pauses for a command from the keyboard.  The typed commands are:

newline Go on to next page of text. 

­- Go back to the previous page. 

­q Quit. 

pn Print page ­n.  An out-of-bounds page number means the end nearer to that number; a missing number means the current page; a signed number means an offset to the current page. 

­n Same as pn.

­c Clear the screen, then wait for another command. 

mmag Change the magnification at which the output is printed.  Normally it is printed with magnification .9; mag=.5 shrinks it to half size; mag=2 doubles the size.

xval Move everything ­val screen pixels to the right (left, if ­val is negative). 

yval Move everything ­val screen pixels down (up, if ­val is negative). 

/nview Split the window into ­nview pieces.  The current page goes into the rightmost, bottommost piece, and previous pages are shown in the other pieces. 

-F dir Use ­dir for fonts instead of /lib/font/bit. 

­d Toggle the debug flag. 

The m, /, and ­d commands are also available as command line options. 

FILES

­/lib/font/bit/∗ fonts

­/lib/font/bit/MAP
how to convert troff output fonts and character names into screen fonts and character numbers

SEE ALSO

lp(1), psi(1)
Brian W. Kernighan, ­A Typesetter-independent Troff

Plan 9  —  January 03, 1993