|  | .\" Stolen from groff's an-ext.tmac as of 2012-Mar-05 | 
|  | .nr mS 0 | 
|  | . | 
|  | . | 
|  | .\" Declare start of command synopsis.  Sets up hanging indentation. | 
|  | .de SY | 
|  | .  ie !\\n(mS \{\ | 
|  | .    nh | 
|  | .    nr mS 1 | 
|  | .    nr mA \\n(.j | 
|  | .    ad l | 
|  | .    nr mI \\n(.i | 
|  | .  \} | 
|  | .  el \{\ | 
|  | .    br | 
|  | .    ns | 
|  | .  \} | 
|  | . | 
|  | .  nr mT \w'\fB\\$1\fP\ ' | 
|  | .  HP \\n(mTu | 
|  | .  B "\\$1" | 
|  | .. | 
|  | . | 
|  | . | 
|  | .\" End of command synopsis.  Restores adjustment. | 
|  | .de YS | 
|  | .  in \\n(mIu | 
|  | .  ad \\n(mA | 
|  | .  hy \\n(HY | 
|  | .  nr mS 0 | 
|  | .. | 
|  | . | 
|  | . | 
|  | .\" Declare optional option. | 
|  | .de OP | 
|  | .  ie \\n(.$-1 \ | 
|  | .    RI "[\fB\\$1\fP" "\ \\$2" "]" | 
|  | .  el \ | 
|  | .    RB "[" "\\$1" "]" | 
|  | .. | 
|  | . | 
|  | . | 
|  | .\" Start example. | 
|  | .de EX | 
|  | .  nr mE \\n(.f | 
|  | .  nf | 
|  | .  nh | 
|  | .  ft CW | 
|  | .. | 
|  | . | 
|  | . | 
|  | .\" End example. | 
|  | .de EE | 
|  | .  ft \\n(mE | 
|  | .  fi | 
|  | .  hy \\n(HY | 
|  | .. |