Update to 1.12.3.

*** 1,6 ****
! /*      $Id: mdoc.h,v 1.122 2011/03/22 14:05:45 kristaps Exp $ */
  /*
   * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
--- 1,6 ----
! /*      $Id: mdoc.h,v 1.125 2013/12/24 19:11:45 schwarze Exp $ */
  /*
   * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   *
   * Permission to use, copy, modify, and distribute this software for any
   * purpose with or without fee is hereby granted, provided that the above
*** 309,318 ****
--- 309,319 ----
          const char       *offs; /* -offset */
          enum mdoc_list    type; /* -tag, -enum, etc. */
          int               comp; /* -compact */
          size_t            ncols; /* -column arg count */
          const char      **cols; /* -column val ptr */
+         int               count; /* -enum counter */
  };
  
  struct  mdoc_bf {
          enum mdoc_font    font; /* font */
  };
*** 348,357 ****
--- 349,359 ----
          struct mdoc_node *next; /* sibling AST node */
          struct mdoc_node *prev; /* prior sibling AST node */
          int               nchild; /* number children */
          int               line; /* parse line */
          int               pos; /* parse column */
+         int               lastline; /* the node ends on this line */
          enum mdoct        tok; /* tok or MDOC__MAX if none */
          int               flags;
  #define MDOC_VALID       (1 << 0) /* has been validated */
  #define MDOC_EOS         (1 << 2) /* at sentence boundary */
  #define MDOC_LINE        (1 << 3) /* first macro/text on line */
*** 360,369 ****
--- 362,372 ----
  #define MDOC_DELIMO      (1 << 6)
  #define MDOC_DELIMC      (1 << 7)
          enum mdoc_type    type; /* AST node type */
          enum mdoc_sec     sec; /* current named section */
          union mdoc_data  *norm; /* normalised args */
+         const void       *prev_font; /* before entering this node */
          /* FIXME: these can be union'd to shave a few bytes. */
          struct mdoc_arg  *args; /* BLOCK/ELEM */
          struct mdoc_node *pending; /* BLOCK */
          struct mdoc_node *head; /* BLOCK */
          struct mdoc_node *body; /* BLOCK */