libroff.h

   1 /*      $Id: libroff.h,v 1.40 2017/06/26 20:09:04 schwarze Exp $ */
   2 /*
   3  * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
   4  * Copyright (c) 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
   5  *
   6  * Permission to use, copy, modify, and distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  */
  18
  19 enum    tbl_part {
  20         TBL_PART_OPTS, /* in options (first line) */
  21         TBL_PART_LAYOUT, /* describing layout */
  22         TBL_PART_DATA, /* creating data rows */
  23         TBL_PART_CDATA /* continue previous row */
  24 };
  25
  26 struct  tbl_node {
  27         struct mparse    *parse; /* parse point */
  28         int               pos; /* invocation column */
  29         int               line; /* invocation line */
  30         enum tbl_part     part;
  31         struct tbl_opts   opts;
  32         struct tbl_row   *first_row;
  33         struct tbl_row   *last_row;
  34         struct tbl_span  *first_span;
  35         struct tbl_span  *current_span;
  36         struct tbl_span  *last_span;
  37         struct tbl_node  *next;
  38 };
  39
  40 struct  eqn_node {
  41         struct eqn        eqn;    /* syntax tree of this equation */
  42         struct mparse    *parse;  /* main parser, for error reporting */
  43         struct eqn_node  *next;   /* singly linked list of equations */
  44         struct eqn_def   *defs;   /* array of definitions */
  45         char             *data;   /* source code of this equation */
  46         char             *start;  /* first byte of the current token */
  47         char             *end;    /* first byte of the next token */
  48         size_t            defsz;  /* number of definitions */
  49         size_t            sz;     /* length of the source code */
  50         size_t            toksz;  /* length of the current token */
  51         int               gsize;  /* default point size */
  52         int               delim;  /* in-line delimiters enabled */
  53         char              odelim; /* in-line opening delimiter */
  54         char              cdelim; /* in-line closing delimiter */
  55 };
  56
  57 struct  eqn_def {
  58         char             *key;
  59         size_t            keysz;
  60         char             *val;
  61         size_t            valsz;
  62 };
  63
  64
  65 struct tbl_node *tbl_alloc(int, int, struct mparse *);
  66 void             tbl_restart(int, int, struct tbl_node *);
  67 void             tbl_free(struct tbl_node *);
  68 void             tbl_reset(struct tbl_node *);
  69 enum rofferr     tbl_read(struct tbl_node *, int, const char *, int);
  70 void             tbl_option(struct tbl_node *, int, const char *, int *);
  71 void             tbl_layout(struct tbl_node *, int, const char *, int);
  72 void             tbl_data(struct tbl_node *, int, const char *, int);
  73 int              tbl_cdata(struct tbl_node *, int, const char *, int);
  74 const struct tbl_span   *tbl_span(struct tbl_node *);
  75 int              tbl_end(struct tbl_node **);
  76 struct eqn_node *eqn_alloc(int, int, struct mparse *);
  77 enum rofferr     eqn_end(struct eqn_node **);
  78 void             eqn_free(struct eqn_node *);
  79 enum rofferr     eqn_read(struct eqn_node **, int,
  80                         const char *, int, int *);