tbl_data.c

   1 /*      $Id: tbl_data.c,v 1.2 2010/12/30 09:34:07 kristaps Exp $ */
   2 /*
   3  * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
   4  *
   5  * Permission to use, copy, modify, and distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17 #include <assert.h>
  18 #include <ctype.h>
  19 #include <stdlib.h>
  20 #include <string.h>
  21
  22 #include "mandoc.h"
  23 #include "libmandoc.h"
  24 #include "libroff.h"
  25
  26 static  void    data(struct tbl *, struct tbl_span *,
  27                         int, const char *, int *);
  28
  29 void
  30 data(struct tbl *tbl, struct tbl_span *dp,
  31                 int ln, const char *p, int *pos)
  32 {
  33         struct tbl_dat  *dat;
  34         int              sv;
  35
  36         /* FIXME: warn about losing data contents if cell is HORIZ. */
  37
  38         dat = mandoc_calloc(1, sizeof(struct tbl_dat));
  39
  40         if (dp->last) {
  41                 dp->last->next = dat;
  42                 dp->last = dat;
  43         } else
  44                 dp->last = dp->first = dat;
  45
  46         sv = *pos;
  47         while (p[*pos] && p[*pos] != tbl->tab)
  48                 (*pos)++;
  49
  50         dat->string = mandoc_malloc(*pos - sv + 1);
  51         memcpy(dat->string, &p[sv], *pos - sv);
  52         dat->string[*pos - sv] = '\0';
  53
  54         if (p[*pos])
  55                 (*pos)++;
  56
  57         /* XXX: do the strcmps, then malloc(). */
  58
  59         if ( ! strcmp(dat->string, "_"))
  60                 dat->flags |= TBL_DATA_HORIZ;
  61         else if ( ! strcmp(dat->string, "="))
  62                 dat->flags |= TBL_DATA_DHORIZ;
  63         else if ( ! strcmp(dat->string, "\\_"))
  64                 dat->flags |= TBL_DATA_NHORIZ;
  65         else if ( ! strcmp(dat->string, "\\="))
  66                 dat->flags |= TBL_DATA_NDHORIZ;
  67 }
  68
  69 int
  70 tbl_data(struct tbl *tbl, int ln, const char *p)
  71 {
  72         struct tbl_span *dp;
  73         int              pos;
  74
  75         pos = 0;
  76
  77         if ('\0' == p[pos]) {
  78                 TBL_MSG(tbl, MANDOCERR_TBL, ln, pos);
  79                 return(1);
  80         }
  81
  82         dp = mandoc_calloc(1, sizeof(struct tbl_span));
  83
  84         if (tbl->last_span) {
  85                 tbl->last_span->next = dp;
  86                 tbl->last_span = dp;
  87         } else
  88                 tbl->last_span = tbl->first_span = dp;
  89
  90         if ( ! strcmp(p, "_")) {
  91                 dp->flags |= TBL_SPAN_HORIZ;
  92                 return(1);
  93         } else if ( ! strcmp(p, "=")) {
  94                 dp->flags |= TBL_SPAN_DHORIZ;
  95                 return(1);
  96         }
  97
  98         while ('\0' != p[pos])
  99                 data(tbl, dp, ln, p, &pos);
 100
 101         return(1);
 102 }