GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/mandoc/tbl_term.c Lines: 0 172 0.0 %
Date: 2016-12-06 Branches: 0 142 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: tbl_term.c,v 1.31 2015/10/12 00:07:27 schwarze Exp $ */
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/*
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 * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
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 * Copyright (c) 2011, 2012, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
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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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#include <sys/types.h>
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mandoc.h"
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#include "out.h"
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#include "term.h"
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static	size_t	term_tbl_len(size_t, void *);
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static	size_t	term_tbl_strlen(const char *, void *);
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static	void	tbl_char(struct termp *, char, size_t);
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static	void	tbl_data(struct termp *, const struct tbl_opts *,
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			const struct tbl_dat *,
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			const struct roffcol *);
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static	void	tbl_literal(struct termp *, const struct tbl_dat *,
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			const struct roffcol *);
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static	void	tbl_number(struct termp *, const struct tbl_opts *,
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			const struct tbl_dat *,
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			const struct roffcol *);
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static	void	tbl_hrule(struct termp *, const struct tbl_span *, int);
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static	void	tbl_word(struct termp *, const struct tbl_dat *);
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static size_t
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term_tbl_strlen(const char *p, void *arg)
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{
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	return term_strlen((const struct termp *)arg, p);
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}
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static size_t
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term_tbl_len(size_t sz, void *arg)
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{
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	return term_len((const struct termp *)arg, sz);
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}
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void
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term_tbl(struct termp *tp, const struct tbl_span *sp)
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{
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	const struct tbl_cell	*cp;
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	const struct tbl_dat	*dp;
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	static size_t		 offset;
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	size_t			 rmargin, maxrmargin, tsz;
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	int			 ic, horiz, spans, vert;
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	rmargin = tp->rmargin;
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	maxrmargin = tp->maxrmargin;
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	tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;
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	/* Inhibit printing of spaces: we do padding ourselves. */
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	tp->flags |= TERMP_NONOSPACE;
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	tp->flags |= TERMP_NOSPACE;
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	/*
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	 * The first time we're invoked for a given table block,
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	 * calculate the table widths and decimal positions.
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	 */
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	if (tp->tbl.cols == NULL) {
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		tp->tbl.len = term_tbl_len;
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		tp->tbl.slen = term_tbl_strlen;
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		tp->tbl.arg = tp;
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		tblcalc(&tp->tbl, sp, rmargin - tp->offset);
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		/* Center the table as a whole. */
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		offset = tp->offset;
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		if (sp->opts->opts & TBL_OPT_CENTRE) {
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			tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)
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			    ? 2 : !!sp->opts->lvert + !!sp->opts->rvert;
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			for (ic = 0; ic < sp->opts->cols; ic++)
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				tsz += tp->tbl.cols[ic].width + 3;
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			tsz -= 3;
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			if (offset + tsz > rmargin)
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				tsz -= 1;
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			tp->offset = (offset + rmargin > tsz) ?
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			    (offset + rmargin - tsz) / 2 : 0;
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		}
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		/* Horizontal frame at the start of boxed tables. */
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		if (sp->opts->opts & TBL_OPT_DBOX)
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			tbl_hrule(tp, sp, 2);
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		if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX))
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			tbl_hrule(tp, sp, 1);
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	}
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	/* Vertical frame at the start of each row. */
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	horiz = sp->pos == TBL_SPAN_HORIZ || sp->pos == TBL_SPAN_DHORIZ;
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	if (sp->layout->vert ||
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	    (sp->prev != NULL && sp->prev->layout->vert) ||
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	    sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX))
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		term_word(tp, horiz ? "+" : "|");
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	else if (sp->opts->lvert)
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		tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
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	/*
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	 * Now print the actual data itself depending on the span type.
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	 * Match data cells to column numbers.
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	 */
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	if (sp->pos == TBL_SPAN_DATA) {
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		cp = sp->layout->first;
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		dp = sp->first;
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		spans = 0;
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		for (ic = 0; ic < sp->opts->cols; ic++) {
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			/*
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			 * Remeber whether we need a vertical bar
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			 * after this cell.
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			 */
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			vert = cp == NULL ? 0 : cp->vert;
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			/*
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			 * Print the data and advance to the next cell.
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			 */
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			if (spans == 0) {
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				tbl_data(tp, sp->opts, dp, tp->tbl.cols + ic);
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				if (dp != NULL) {
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					spans = dp->spans;
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					dp = dp->next;
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				}
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			} else
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				spans--;
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			if (cp != NULL)
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				cp = cp->next;
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			/*
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			 * Separate columns, except in the middle
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			 * of spans and after the last cell.
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			 */
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			if (ic + 1 == sp->opts->cols || spans)
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				continue;
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			tbl_char(tp, ASCII_NBRSP, 1);
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			if (vert > 0)
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				tbl_char(tp, '|', vert);
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			if (vert < 2)
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				tbl_char(tp, ASCII_NBRSP, 2 - vert);
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		}
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	} else if (horiz)
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		tbl_hrule(tp, sp, 0);
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	/* Vertical frame at the end of each row. */
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	if (sp->layout->last->vert ||
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	    (sp->prev != NULL && sp->prev->layout->last->vert) ||
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	    (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX)))
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		term_word(tp, horiz ? "+" : " |");
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	else if (sp->opts->rvert)
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		tbl_char(tp, horiz ? '-' : ASCII_NBRSP, 1);
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	term_flushln(tp);
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	/*
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	 * If we're the last row, clean up after ourselves: clear the
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	 * existing table configuration and set it to NULL.
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	 */
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	if (sp->next == NULL) {
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		if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) {
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			tbl_hrule(tp, sp, 1);
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			tp->skipvsp = 1;
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		}
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		if (sp->opts->opts & TBL_OPT_DBOX) {
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			tbl_hrule(tp, sp, 2);
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			tp->skipvsp = 2;
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		}
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		assert(tp->tbl.cols);
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		free(tp->tbl.cols);
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		tp->tbl.cols = NULL;
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		tp->offset = offset;
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	}
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	tp->flags &= ~TERMP_NONOSPACE;
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	tp->rmargin = rmargin;
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	tp->maxrmargin = maxrmargin;
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}
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/*
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 * Kinds of horizontal rulers:
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 * 0: inside the table (single or double line with crossings)
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 * 1: inner frame (single line with crossings and ends)
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 * 2: outer frame (single line without crossings with ends)
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 */
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static void
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tbl_hrule(struct termp *tp, const struct tbl_span *sp, int kind)
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{
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	const struct tbl_cell *c1, *c2;
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	int	 vert;
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	char	 line, cross;
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	line = (kind == 0 && TBL_SPAN_DHORIZ == sp->pos) ? '=' : '-';
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	cross = (kind < 2) ? '+' : '-';
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	if (kind)
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		term_word(tp, "+");
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	c1 = sp->layout->first;
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	c2 = sp->prev == NULL ? NULL : sp->prev->layout->first;
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	if (c2 == c1)
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		c2 = NULL;
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	for (;;) {
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		tbl_char(tp, line, tp->tbl.cols[c1->col].width + 1);
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		vert = c1->vert;
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		if ((c1 = c1->next) == NULL)
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			 break;
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		if (c2 != NULL) {
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			if (vert < c2->vert)
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				vert = c2->vert;
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			c2 = c2->next;
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		}
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		if (vert)
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			tbl_char(tp, cross, vert);
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		if (vert < 2)
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			tbl_char(tp, line, 2 - vert);
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	}
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	if (kind) {
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		term_word(tp, "+");
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		term_flushln(tp);
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	}
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}
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static void
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tbl_data(struct termp *tp, const struct tbl_opts *opts,
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	const struct tbl_dat *dp,
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	const struct roffcol *col)
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{
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	if (dp == NULL) {
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		tbl_char(tp, ASCII_NBRSP, col->width);
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		return;
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	}
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	switch (dp->pos) {
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	case TBL_DATA_NONE:
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		tbl_char(tp, ASCII_NBRSP, col->width);
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		return;
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	case TBL_DATA_HORIZ:
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	case TBL_DATA_NHORIZ:
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		tbl_char(tp, '-', col->width);
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		return;
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	case TBL_DATA_NDHORIZ:
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	case TBL_DATA_DHORIZ:
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		tbl_char(tp, '=', col->width);
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		return;
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	default:
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		break;
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	}
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	switch (dp->layout->pos) {
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	case TBL_CELL_HORIZ:
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		tbl_char(tp, '-', col->width);
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		break;
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	case TBL_CELL_DHORIZ:
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		tbl_char(tp, '=', col->width);
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		break;
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	case TBL_CELL_LONG:
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	case TBL_CELL_CENTRE:
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	case TBL_CELL_LEFT:
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	case TBL_CELL_RIGHT:
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		tbl_literal(tp, dp, col);
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		break;
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	case TBL_CELL_NUMBER:
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		tbl_number(tp, opts, dp, col);
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		break;
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	case TBL_CELL_DOWN:
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		tbl_char(tp, ASCII_NBRSP, col->width);
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		break;
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	default:
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		abort();
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	}
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}
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static void
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tbl_char(struct termp *tp, char c, size_t len)
304
{
305
	size_t		i, sz;
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	char		cp[2];
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	cp[0] = c;
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	cp[1] = '\0';
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	sz = term_strlen(tp, cp);
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	for (i = 0; i < len; i += sz)
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		term_word(tp, cp);
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}
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static void
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tbl_literal(struct termp *tp, const struct tbl_dat *dp,
319
		const struct roffcol *col)
320
{
321
	size_t		 len, padl, padr, width;
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	int		 ic, spans;
323
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	assert(dp->string);
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	len = term_strlen(tp, dp->string);
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	width = col->width;
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	ic = dp->layout->col;
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	spans = dp->spans;
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	while (spans--)
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		width += tp->tbl.cols[++ic].width + 3;
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	padr = width > len ? width - len : 0;
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	padl = 0;
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	switch (dp->layout->pos) {
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	case TBL_CELL_LONG:
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		padl = term_len(tp, 1);
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		padr = padr > padl ? padr - padl : 0;
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		break;
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	case TBL_CELL_CENTRE:
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		if (2 > padr)
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			break;
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		padl = padr / 2;
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		padr -= padl;
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		break;
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	case TBL_CELL_RIGHT:
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		padl = padr;
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		padr = 0;
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		break;
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	default:
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		break;
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	}
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	tbl_char(tp, ASCII_NBRSP, padl);
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	tbl_word(tp, dp);
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	tbl_char(tp, ASCII_NBRSP, padr);
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}
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static void
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tbl_number(struct termp *tp, const struct tbl_opts *opts,
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		const struct tbl_dat *dp,
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		const struct roffcol *col)
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{
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	char		*cp;
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	char		 buf[2];
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	size_t		 sz, psz, ssz, d, padl;
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	int		 i;
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	/*
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	 * See calc_data_number().  Left-pad by taking the offset of our
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	 * and the maximum decimal; right-pad by the remaining amount.
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	 */
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	assert(dp->string);
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	sz = term_strlen(tp, dp->string);
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	buf[0] = opts->decimal;
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	buf[1] = '\0';
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	psz = term_strlen(tp, buf);
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383
	if ((cp = strrchr(dp->string, opts->decimal)) != NULL) {
384
		for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
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			buf[0] = dp->string[i];
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			ssz += term_strlen(tp, buf);
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		}
388
		d = ssz + psz;
389
	} else
390
		d = sz + psz;
391
392
	if (col->decimal > d && col->width > sz) {
393
		padl = col->decimal - d;
394
		if (padl + sz > col->width)
395
			padl = col->width - sz;
396
		tbl_char(tp, ASCII_NBRSP, padl);
397
	} else
398
		padl = 0;
399
	tbl_word(tp, dp);
400
	if (col->width > sz + padl)
401
		tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);
402
}
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404
static void
405
tbl_word(struct termp *tp, const struct tbl_dat *dp)
406
{
407
	int		 prev_font;
408
409
	prev_font = tp->fonti;
410
	if (dp->layout->flags & TBL_CELL_BOLD)
411
		term_fontpush(tp, TERMFONT_BOLD);
412
	else if (dp->layout->flags & TBL_CELL_ITALIC)
413
		term_fontpush(tp, TERMFONT_UNDER);
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415
	term_word(tp, dp->string);
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417
	term_fontpopq(tp, prev_font);
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}