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218 lines
5.1 KiB
C
218 lines
5.1 KiB
C
/* $Vendor-Id: tbl_data.c,v 1.15 2011/01/09 23:14:41 kristaps Exp $ */
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/*
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* Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <assert.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include "mandoc.h"
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#include "libmandoc.h"
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#include "libroff.h"
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static int data(struct tbl_node *, struct tbl_span *,
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int, const char *, int *);
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static int
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data(struct tbl_node *tbl, struct tbl_span *dp,
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int ln, const char *p, int *pos)
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{
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struct tbl_dat *dat;
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struct tbl_cell *cp;
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int sv;
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cp = NULL;
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if (dp->last && dp->last->layout)
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cp = dp->last->layout->next;
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else if (NULL == dp->last)
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cp = dp->layout->first;
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/*
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* Skip over spanners and vertical lines to data formats, since
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* we want to match data with data layout cells in the header.
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*/
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while (cp && (TBL_CELL_VERT == cp->pos ||
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TBL_CELL_DVERT == cp->pos ||
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TBL_CELL_SPAN == cp->pos))
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cp = cp->next;
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dat = mandoc_calloc(1, sizeof(struct tbl_dat));
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dat->layout = cp;
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dat->pos = TBL_DATA_NONE;
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if (NULL == dat->layout)
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TBL_MSG(tbl, MANDOCERR_TBLEXTRADAT, ln, *pos);
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if (dp->last) {
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dp->last->next = dat;
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dp->last = dat;
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} else
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dp->last = dp->first = dat;
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sv = *pos;
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while (p[*pos] && p[*pos] != tbl->opts.tab)
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(*pos)++;
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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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if (*pos - sv == 2 && 'T' == p[sv] && '{' == p[sv + 1]) {
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tbl->part = TBL_PART_CDATA;
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return(0);
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}
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dat->string = mandoc_malloc(*pos - sv + 1);
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memcpy(dat->string, &p[sv], *pos - sv);
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dat->string[*pos - sv] = '\0';
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if (p[*pos])
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(*pos)++;
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if ( ! strcmp(dat->string, "_"))
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dat->pos = TBL_DATA_HORIZ;
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else if ( ! strcmp(dat->string, "="))
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dat->pos = TBL_DATA_DHORIZ;
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else if ( ! strcmp(dat->string, "\\_"))
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dat->pos = TBL_DATA_NHORIZ;
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else if ( ! strcmp(dat->string, "\\="))
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dat->pos = TBL_DATA_NDHORIZ;
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else
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dat->pos = TBL_DATA_DATA;
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if (NULL == dat->layout)
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return(1);
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if (TBL_CELL_HORIZ == dat->layout->pos ||
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TBL_CELL_DHORIZ == dat->layout->pos)
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if (TBL_DATA_DATA == dat->pos && '\0' != *dat->string)
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TBL_MSG(tbl, MANDOCERR_TBLIGNDATA, ln, sv);
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return(1);
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}
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/* ARGSUSED */
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int
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tbl_cdata(struct tbl_node *tbl, int ln, const char *p)
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{
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struct tbl_dat *dat;
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size_t sz;
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int pos;
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pos = 0;
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dat = tbl->last_span->last;
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dat->pos = TBL_DATA_DATA;
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if (p[pos] == 'T' && p[pos + 1] == '}') {
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pos += 2;
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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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return(data(tbl, tbl->last_span, ln, p, &pos));
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} else if ('\0' == p[pos]) {
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tbl->part = TBL_PART_DATA;
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return(1);
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}
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/* Fallthrough: T} is part of a word. */
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}
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if (dat->string) {
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sz = strlen(p) + strlen(dat->string) + 2;
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dat->string = mandoc_realloc(dat->string, sz);
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strlcat(dat->string, " ", sz);
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strlcat(dat->string, p, sz);
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} else
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dat->string = mandoc_strdup(p);
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return(0);
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}
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int
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tbl_data(struct tbl_node *tbl, int ln, const char *p)
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{
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struct tbl_span *dp;
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struct tbl_row *rp;
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int pos;
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pos = 0;
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if ('\0' == p[pos]) {
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TBL_MSG(tbl, MANDOCERR_TBL, ln, pos);
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return(0);
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}
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/*
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* Choose a layout row: take the one following the last parsed
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* span's. If that doesn't exist, use the last parsed span's.
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* If there's no last parsed span, use the first row. Lastly,
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* if the last span was a horizontal line, use the same layout
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* (it doesn't "consume" the layout).
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*
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* In the end, this can be NULL!
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*/
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if (tbl->last_span) {
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assert(tbl->last_span->layout);
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if (tbl->last_span->pos == TBL_SPAN_DATA)
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rp = tbl->last_span->layout->next;
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else
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rp = tbl->last_span->layout;
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if (NULL == rp)
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rp = tbl->last_span->layout;
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} else
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rp = tbl->first_row;
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dp = mandoc_calloc(1, sizeof(struct tbl_span));
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dp->tbl = &tbl->opts;
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dp->layout = rp;
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dp->head = tbl->first_head;
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if (tbl->last_span) {
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tbl->last_span->next = dp;
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tbl->last_span = dp;
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} else {
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tbl->last_span = tbl->first_span = dp;
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dp->flags |= TBL_SPAN_FIRST;
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}
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if ( ! strcmp(p, "_")) {
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dp->pos = TBL_SPAN_HORIZ;
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return(1);
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} else if ( ! strcmp(p, "=")) {
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dp->pos = TBL_SPAN_DHORIZ;
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return(1);
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}
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dp->pos = TBL_SPAN_DATA;
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/* This returns 0 when TBL_PART_CDATA is entered. */
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while ('\0' != p[pos])
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if ( ! data(tbl, dp, ln, p, &pos))
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return(0);
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return(1);
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}
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