2021-09-10 06:23:44 -07:00
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/* $OpenBSD: tbl_data.c,v 1.46 2021/09/10 13:23:44 schwarze Exp $ */
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2010-10-15 12:20:03 -07:00
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/*
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2011-01-04 14:28:17 -08:00
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* Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
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2021-05-18 06:22:37 -07:00
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* Copyright (c) 2011,2015,2017-2019,2021 Ingo Schwarze <schwarze@openbsd.org>
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2010-10-15 12:20:03 -07:00
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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2014-11-28 11:25:03 -08:00
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#include <sys/types.h>
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2010-10-15 12:20:03 -07:00
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#include <assert.h>
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#include <ctype.h>
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2020-01-11 12:48:13 -08:00
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#include <stdint.h>
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Major cleanup; may imply minor changes in edge cases of error reporting.
Finally, drop support for the run-time configurable mandocmsg()
callback. It was over-engineered from the start, never used for
anything in a decade, and repeatedly caused maintenance headaches.
Consolidate reporting infrastructure into two files, mandoc.h and
mandoc_msg.c, mopping up the bits and pieces that were scattered
around main.c, read.c, mandoc_parse.h, libmandoc.h, the prototypes
of four parsing-related functions, and both parser structs.
2018-12-13 17:17:46 -08:00
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#include <stdio.h>
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2010-10-15 12:20:03 -07:00
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#include <stdlib.h>
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#include <string.h>
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2011-01-04 14:28:17 -08:00
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#include <time.h>
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2010-10-15 12:20:03 -07:00
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2014-03-21 15:17:01 -07:00
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#include "mandoc_aux.h"
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2018-12-12 13:54:30 -08:00
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#include "mandoc.h"
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#include "tbl.h"
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2011-01-04 14:28:17 -08:00
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#include "libmandoc.h"
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2018-12-12 18:05:57 -08:00
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#include "tbl_int.h"
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2010-10-15 12:20:03 -07:00
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2015-01-20 16:45:16 -08:00
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static void getdata(struct tbl_node *, struct tbl_span *,
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2011-02-09 16:06:30 -08:00
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int, const char *, int *);
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2014-04-20 09:44:44 -07:00
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static struct tbl_span *newspan(struct tbl_node *, int,
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2011-02-09 16:06:30 -08:00
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struct tbl_row *);
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2010-10-15 12:20:03 -07:00
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2014-04-20 09:44:44 -07:00
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2015-01-20 16:45:16 -08:00
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static void
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2014-04-20 09:44:44 -07:00
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getdata(struct tbl_node *tbl, struct tbl_span *dp,
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2011-01-04 14:28:17 -08:00
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int ln, const char *p, int *pos)
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2010-10-15 12:20:03 -07:00
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{
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2018-11-25 11:23:59 -08:00
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struct tbl_dat *dat, *pdat;
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2011-01-04 14:28:17 -08:00
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struct tbl_cell *cp;
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2018-11-25 11:23:59 -08:00
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struct tbl_span *pdp;
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2021-05-18 06:22:37 -07:00
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const char *ccp;
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2021-09-07 04:47:42 -07:00
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int startpos, endpos;
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2011-01-04 14:28:17 -08:00
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2018-11-25 13:17:30 -08:00
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/*
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* Determine the length of the string in the cell
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* and advance the parse point to the end of the cell.
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*/
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2021-09-07 04:47:42 -07:00
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startpos = *pos;
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ccp = p + startpos;
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2021-05-18 06:22:37 -07:00
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while (*ccp != '\0' && *ccp != tbl->opts.tab)
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if (*ccp++ == '\\')
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mandoc_escape(&ccp, NULL, NULL);
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*pos = ccp - p;
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2018-11-25 13:17:30 -08:00
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2015-01-29 20:08:37 -08:00
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/* Advance to the next layout cell, skipping spanners. */
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2011-01-04 14:28:17 -08:00
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2015-01-29 20:08:37 -08:00
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cp = dp->last == NULL ? dp->layout->first : dp->last->layout->next;
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2015-01-29 18:08:37 -08:00
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while (cp != NULL && cp->pos == TBL_CELL_SPAN)
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2011-01-04 14:28:17 -08:00
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cp = cp->next;
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2011-01-15 17:11:50 -08:00
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/*
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2017-06-16 13:00:41 -07:00
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* If the current layout row is out of cells, allocate
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* a new cell if another row of the table has at least
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* this number of columns, or discard the input if we
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* are beyond the last column of the table as a whole.
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2011-01-15 17:11:50 -08:00
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*/
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2015-01-29 18:08:37 -08:00
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if (cp == NULL) {
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2017-06-16 13:00:41 -07:00
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if (dp->layout->last->col + 1 < dp->opts->cols) {
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cp = mandoc_calloc(1, sizeof(*cp));
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cp->pos = TBL_CELL_LEFT;
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Support two-character font names (BI, CW, CR, CB, CI)
in the tbl(7) layout font modifier.
Get rid of the TBL_CELL_BOLD and TBL_CELL_ITALIC flags and use
the usual ESCAPE_FONT* enum mandoc_esc members from mandoc.h instead,
which simplifies and unifies some code.
While here, also support CB and CI in roff(7) \f escape sequences
and in roff(7) .ft requests for all output modes. Using those is
certainly not recommended because portability is limited even with
groff, but supporting them makes some existing third-party manual
pages look better, in particular in HTML output mode.
Bug-compatible with groff as far as i'm aware, except that i consider
font names starting with the '\n' (ASCII 0x0a line feed) character
so insane that i decided to not support them.
Missing feature reported by nabijaczleweli dot xyz in
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=992002.
I used none of the code from the initial patch submitted by
nabijaczleweli, but some of their ideas.
Final patch tested by them, too.
2021-08-10 05:36:42 -07:00
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cp->font = ESCAPE_FONTROMAN;
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2020-01-11 12:48:13 -08:00
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cp->spacing = SIZE_MAX;
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2017-06-16 13:00:41 -07:00
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dp->layout->last->next = cp;
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cp->col = dp->layout->last->col + 1;
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dp->layout->last = cp;
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} else {
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2018-12-13 21:17:45 -08:00
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mandoc_msg(MANDOCERR_TBLDATA_EXTRA,
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2021-09-07 04:47:42 -07:00
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ln, startpos, "%s", p + startpos);
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2018-11-25 13:17:30 -08:00
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while (p[*pos] != '\0')
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2017-06-16 13:00:41 -07:00
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(*pos)++;
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return;
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}
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2011-01-15 17:11:50 -08:00
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}
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2018-11-25 11:23:59 -08:00
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dat = mandoc_malloc(sizeof(*dat));
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2011-01-04 14:28:17 -08:00
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dat->layout = cp;
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2018-11-25 11:23:59 -08:00
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dat->next = NULL;
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dat->string = NULL;
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dat->hspans = 0;
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dat->vspans = 0;
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dat->block = 0;
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2011-01-04 14:28:17 -08:00
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dat->pos = TBL_DATA_NONE;
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2018-11-25 11:23:59 -08:00
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/*
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* Increment the number of vertical spans in a data cell above,
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* if this cell vertically extends one or more cells above.
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* The iteration must be done over data rows,
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* not over layout rows, because one layout row
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* can be reused for more than one data row.
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*/
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2018-11-25 13:17:30 -08:00
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if (cp->pos == TBL_CELL_DOWN ||
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2021-09-07 04:47:42 -07:00
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(*pos - startpos == 2 &&
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p[startpos] == '\\' && p[startpos + 1] == '^')) {
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2018-11-25 11:23:59 -08:00
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pdp = dp;
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while ((pdp = pdp->prev) != NULL) {
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pdat = pdp->first;
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while (pdat != NULL &&
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pdat->layout->col < dat->layout->col)
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pdat = pdat->next;
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if (pdat == NULL)
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break;
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2018-11-25 13:17:30 -08:00
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if (pdat->layout->pos != TBL_CELL_DOWN &&
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strcmp(pdat->string, "\\^") != 0) {
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2018-11-25 11:23:59 -08:00
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pdat->vspans++;
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break;
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}
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}
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}
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/*
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* Count the number of horizontal spans to the right of this cell.
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* This is purely a matter of the layout, independent of the data.
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*/
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2015-01-29 18:08:37 -08:00
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for (cp = cp->next; cp != NULL; cp = cp->next)
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if (cp->pos == TBL_CELL_SPAN)
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2018-11-25 11:23:59 -08:00
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dat->hspans++;
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2011-01-15 17:11:50 -08:00
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else
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break;
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2014-04-20 09:44:44 -07:00
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2018-11-25 11:23:59 -08:00
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/* Append the new data cell to the data row. */
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2015-01-29 18:08:37 -08:00
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if (dp->last == NULL)
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dp->first = dat;
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else
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2011-01-04 14:28:17 -08:00
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dp->last->next = dat;
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2015-01-29 18:08:37 -08:00
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dp->last = dat;
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2011-01-04 14:28:17 -08:00
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2021-09-10 06:23:44 -07:00
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/* Strip leading and trailing spaces, if requested. */
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endpos = *pos;
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if (dp->opts->opts & TBL_OPT_NOSPACE) {
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while (p[startpos] == ' ')
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startpos++;
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while (endpos > startpos && p[endpos - 1] == ' ')
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endpos--;
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}
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2011-01-04 14:28:17 -08:00
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/*
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* Check for a continued-data scope opening. This consists of a
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* trailing `T{' at the end of the line. Subsequent lines,
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* until a standalone `T}', are included in our cell.
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*/
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2021-09-10 06:23:44 -07:00
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if (endpos - startpos == 2 &&
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2021-09-07 04:47:42 -07:00
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p[startpos] == 'T' && p[startpos + 1] == '{') {
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2011-01-04 14:28:17 -08:00
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tbl->part = TBL_PART_CDATA;
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2015-01-20 16:45:16 -08:00
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return;
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2011-01-04 14:28:17 -08:00
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}
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2010-10-15 12:20:03 -07:00
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2021-09-07 04:47:42 -07:00
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dat->string = mandoc_strndup(p + startpos, endpos - startpos);
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2010-10-15 12:20:03 -07:00
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2018-11-25 13:17:30 -08:00
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if (p[*pos] != '\0')
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2011-01-04 14:28:17 -08:00
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(*pos)++;
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2010-10-15 12:20:03 -07:00
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if ( ! strcmp(dat->string, "_"))
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2011-01-04 14:28:17 -08:00
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dat->pos = TBL_DATA_HORIZ;
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2010-10-15 12:20:03 -07:00
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else if ( ! strcmp(dat->string, "="))
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2011-01-04 14:28:17 -08:00
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dat->pos = TBL_DATA_DHORIZ;
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2010-10-15 12:20:03 -07:00
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else if ( ! strcmp(dat->string, "\\_"))
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2011-01-04 14:28:17 -08:00
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dat->pos = TBL_DATA_NHORIZ;
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2010-10-15 12:20:03 -07:00
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else if ( ! strcmp(dat->string, "\\="))
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2011-01-04 14:28:17 -08:00
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dat->pos = TBL_DATA_NDHORIZ;
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2010-10-15 12:20:03 -07:00
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else
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2011-01-04 14:28:17 -08:00
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dat->pos = TBL_DATA_DATA;
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2015-01-29 18:08:37 -08:00
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if ((dat->layout->pos == TBL_CELL_HORIZ ||
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dat->layout->pos == TBL_CELL_DHORIZ ||
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dat->layout->pos == TBL_CELL_DOWN) &&
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dat->pos == TBL_DATA_DATA && *dat->string != '\0')
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mandoc_msg(MANDOCERR_TBLDATA_SPAN,
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2021-09-07 04:47:42 -07:00
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ln, startpos, "%s", dat->string);
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2010-10-15 12:20:03 -07:00
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}
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2017-07-08 10:52:42 -07:00
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void
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2015-01-28 07:02:25 -08:00
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tbl_cdata(struct tbl_node *tbl, int ln, const char *p, int pos)
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2011-01-04 14:28:17 -08:00
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{
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struct tbl_dat *dat;
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2014-04-20 09:44:44 -07:00
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size_t sz;
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2011-01-04 14:28:17 -08:00
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dat = tbl->last_span->last;
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2011-01-09 06:30:48 -08:00
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if (p[pos] == 'T' && p[pos + 1] == '}') {
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pos += 2;
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2021-09-10 05:06:29 -07:00
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if (tbl->opts.opts & TBL_OPT_NOSPACE)
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while (p[pos] == ' ')
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pos++;
|
2011-01-09 06:30:48 -08:00
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if (p[pos] == tbl->opts.tab) {
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tbl->part = TBL_PART_DATA;
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pos++;
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2015-04-19 13:34:56 -07:00
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while (p[pos] != '\0')
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getdata(tbl, tbl->last_span, ln, p, &pos);
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2017-07-08 10:52:42 -07:00
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return;
|
2015-01-29 18:08:37 -08:00
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} else if (p[pos] == '\0') {
|
2011-01-09 06:30:48 -08:00
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tbl->part = TBL_PART_DATA;
|
2017-07-08 10:52:42 -07:00
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return;
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2011-01-09 06:30:48 -08:00
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}
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/* Fallthrough: T} is part of a word. */
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}
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2011-01-15 17:11:50 -08:00
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dat->pos = TBL_DATA_DATA;
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2017-06-08 11:11:15 -07:00
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dat->block = 1;
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2011-01-15 17:11:50 -08:00
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2015-01-29 18:08:37 -08:00
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if (dat->string != NULL) {
|
2015-01-28 09:30:37 -08:00
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sz = strlen(p + pos) + strlen(dat->string) + 2;
|
2011-01-04 14:28:17 -08:00
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dat->string = mandoc_realloc(dat->string, sz);
|
2014-04-23 09:07:06 -07:00
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(void)strlcat(dat->string, " ", sz);
|
2015-01-28 09:30:37 -08:00
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(void)strlcat(dat->string, p + pos, sz);
|
2011-01-04 14:28:17 -08:00
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} else
|
2015-01-28 09:30:37 -08:00
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dat->string = mandoc_strdup(p + pos);
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2011-01-04 14:28:17 -08:00
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2015-01-29 18:08:37 -08:00
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if (dat->layout->pos == TBL_CELL_DOWN)
|
2018-12-13 21:17:45 -08:00
|
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mandoc_msg(MANDOCERR_TBLDATA_SPAN,
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ln, pos, "%s", dat->string);
|
2011-01-04 14:28:17 -08:00
|
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}
|
2010-10-15 12:20:03 -07:00
|
|
|
|
2011-01-25 04:16:19 -08:00
|
|
|
static struct tbl_span *
|
2011-02-09 16:06:30 -08:00
|
|
|
newspan(struct tbl_node *tbl, int line, struct tbl_row *rp)
|
2011-01-25 04:16:19 -08:00
|
|
|
{
|
|
|
|
struct tbl_span *dp;
|
|
|
|
|
2015-01-29 18:08:37 -08:00
|
|
|
dp = mandoc_calloc(1, sizeof(*dp));
|
2011-02-09 16:06:30 -08:00
|
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|
dp->line = line;
|
2013-05-31 14:37:08 -07:00
|
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|
dp->opts = &tbl->opts;
|
2011-01-25 04:16:19 -08:00
|
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|
dp->layout = rp;
|
2015-01-26 21:20:30 -08:00
|
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|
dp->prev = tbl->last_span;
|
2011-01-25 04:16:19 -08:00
|
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|
|
2015-01-26 21:20:30 -08:00
|
|
|
if (dp->prev == NULL) {
|
|
|
|
tbl->first_span = dp;
|
2011-01-25 04:24:26 -08:00
|
|
|
tbl->current_span = NULL;
|
2015-01-26 21:20:30 -08:00
|
|
|
} else
|
|
|
|
dp->prev->next = dp;
|
|
|
|
tbl->last_span = dp;
|
2011-01-25 04:16:19 -08:00
|
|
|
|
2015-10-06 11:30:43 -07:00
|
|
|
return dp;
|
2011-01-25 04:16:19 -08:00
|
|
|
}
|
|
|
|
|
2015-01-20 16:45:16 -08:00
|
|
|
void
|
2015-01-28 07:02:25 -08:00
|
|
|
tbl_data(struct tbl_node *tbl, int ln, const char *p, int pos)
|
2010-10-15 12:20:03 -07:00
|
|
|
{
|
2011-01-04 14:28:17 -08:00
|
|
|
struct tbl_row *rp;
|
2017-06-16 13:00:41 -07:00
|
|
|
struct tbl_cell *cp;
|
2017-07-04 13:59:17 -07:00
|
|
|
struct tbl_span *sp;
|
2010-10-15 12:20:03 -07:00
|
|
|
|
2021-05-15 10:16:38 -07:00
|
|
|
for (sp = tbl->last_span; sp != NULL; sp = sp->prev)
|
|
|
|
if (sp->pos == TBL_SPAN_DATA)
|
|
|
|
break;
|
|
|
|
rp = sp == NULL ? tbl->first_row :
|
|
|
|
sp->layout->next == NULL ? sp->layout : sp->layout->next;
|
2017-06-16 13:00:41 -07:00
|
|
|
assert(rp != NULL);
|
2011-01-15 17:11:50 -08:00
|
|
|
|
2019-02-09 08:00:06 -08:00
|
|
|
if (p[1] == '\0') {
|
|
|
|
switch (p[0]) {
|
|
|
|
case '.':
|
|
|
|
/*
|
|
|
|
* Empty request lines must be handled here
|
|
|
|
* and cannot be discarded in roff_parseln()
|
|
|
|
* because in the layout section, they
|
|
|
|
* are significant and end the layout.
|
|
|
|
*/
|
|
|
|
return;
|
|
|
|
case '_':
|
|
|
|
sp = newspan(tbl, ln, rp);
|
|
|
|
sp->pos = TBL_SPAN_HORIZ;
|
|
|
|
return;
|
|
|
|
case '=':
|
|
|
|
sp = newspan(tbl, ln, rp);
|
|
|
|
sp->pos = TBL_SPAN_DHORIZ;
|
|
|
|
return;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
2010-10-15 12:20:03 -07:00
|
|
|
}
|
2017-06-16 13:00:41 -07:00
|
|
|
|
|
|
|
/*
|
2017-07-04 13:59:17 -07:00
|
|
|
* If the layout row contains nothing but horizontal lines,
|
|
|
|
* allocate an empty span for it and assign the current span
|
|
|
|
* to the next layout row accepting data.
|
2017-06-16 13:00:41 -07:00
|
|
|
*/
|
|
|
|
|
2017-07-04 13:59:17 -07:00
|
|
|
while (rp->next != NULL) {
|
|
|
|
if (rp->last->col + 1 < tbl->opts.cols)
|
|
|
|
break;
|
|
|
|
for (cp = rp->first; cp != NULL; cp = cp->next)
|
|
|
|
if (cp->pos != TBL_CELL_HORIZ &&
|
|
|
|
cp->pos != TBL_CELL_DHORIZ)
|
|
|
|
break;
|
|
|
|
if (cp != NULL)
|
|
|
|
break;
|
|
|
|
sp = newspan(tbl, ln, rp);
|
|
|
|
sp->pos = TBL_SPAN_DATA;
|
|
|
|
rp = rp->next;
|
2017-06-16 13:00:41 -07:00
|
|
|
}
|
|
|
|
|
2017-07-04 13:59:17 -07:00
|
|
|
/* Process a real data row. */
|
2017-06-16 13:00:41 -07:00
|
|
|
|
2017-07-04 13:59:17 -07:00
|
|
|
sp = newspan(tbl, ln, rp);
|
|
|
|
sp->pos = TBL_SPAN_DATA;
|
|
|
|
while (p[pos] != '\0')
|
|
|
|
getdata(tbl, sp, ln, p, &pos);
|
2010-10-15 12:20:03 -07:00
|
|
|
}
|