cmd/mandoc/term.c

	term.c revision 95c635efb7c3b86efc493e0447eaec7aecca3f0f
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore/*  $Id: term.c,v 1.201 2011/09/21 09:57:13 schwarze Exp $ */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore/*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * Permission to use, copy, modify, and distribute this software for any
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * purpose with or without fee is hereby granted, provided that the above
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * copyright notice and this permission notice appear in all copies.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#ifdef HAVE_CONFIG_H
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include "config.h"
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#endif
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include <sys/types.h>
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include <assert.h>
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include <ctype.h>
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include <stdint.h>
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include <stdio.h>
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include <stdlib.h>
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include <string.h>
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include "mandoc.h"
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include "out.h"
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include "term.h"
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore#include "main.h"
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorestatic  void         adjbuf(struct termp *p, int);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorestatic  void         bufferc(struct termp *, char);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorestatic  void         encode(struct termp *, const char *, size_t);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorestatic  void         encode1(struct termp *, int);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_free(struct termp *p)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (p->buf)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        free(p->buf);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (p->symtab)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        mchars_free(p->symtab);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    free(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_begin(struct termp *p, term_margin head,
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        term_margin foot, const void *arg)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->headf = head;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->footf = foot;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->argf = arg;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    (*p->begin)(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_end(struct termp *p)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    (*p->end)(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore/*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * Flush a line of text.  A "line" is loosely defined as being something
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * that should be followed by a newline, regardless of whether it's
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * broken apart by newlines getting there.  A line can also be a
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * fragment of a columnar list (`Bl -tag' or `Bl -column'), which does
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * not have a trailing newline.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * The following flags may be specified:
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  - TERMP_NOBREAK: this is the most important and is used when making
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *    columns.  In short: don't print a newline and instead expect the
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *    next call to do the padding up to the start of the next column.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  - TERMP_TWOSPACE: make sure there is room for at least two space
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *    characters of padding.  Otherwise, rather break the line.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  - TERMP_DANGLE: don't newline when TERMP_NOBREAK is specified and
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *    the line is overrun, and don't pad-right if it's underrun.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  - TERMP_HANG: like TERMP_DANGLE, but doesn't newline when
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *    overrunning, instead save the position and continue at that point
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *    when the next invocation.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  In-line line breaking:
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  If TERMP_NOBREAK is specified and the line overruns the right
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  margin, it will break and pad-right to the right margin after
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  writing.  If maxrmargin is violated, it will break and continue
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  writing from the right-margin, which will lead to the above scenario
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore *  upon exit.  Otherwise, the line will break at the right margin.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_flushln(struct termp *p)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    int      i;     /* current input position in p->buf */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    size_t       vis;   /* current visual position on output */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    size_t       vbl;   /* number of blanks to prepend to output */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    size_t       vend;  /* end of word visual position on output */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    size_t       bp;    /* visual right border position */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    size_t       dv;    /* temporary for visual pos calculations */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    int      j;     /* temporary loop index for p->buf */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    int      jhy;   /* last hyph before overflow w/r/t j */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    size_t       maxvis; /* output position of visible boundary */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    size_t       mmax; /* used in calculating bp */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * First, establish the maximum columns of "visible" content.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * This is usually the difference between the right-margin and
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * an indentation, but can be, for tagged lists or columns, a
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * small set of values.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    assert  (p->rmargin >= p->offset);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    dv     = p->rmargin - p->offset;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    maxvis = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    dv     = p->maxrmargin - p->offset;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    mmax   = (int)dv > p->overstep ? dv - (size_t)p->overstep : 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    bp = TERMP_NOBREAK & p->flags ? mmax : maxvis;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * Calculate the required amount of padding.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    vbl = p->offset + p->overstep > p->viscol ?
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore          p->offset + p->overstep - p->viscol : 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    vis = vend = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    i = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    while (i < p->col) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * Handle literal tab characters: collapse all
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * subsequent tabs into a single huge set of spaces.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        while (i < p->col && '\t' == p->buf[i]) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            vend = (vis / p->tabwidth + 1) * p->tabwidth;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            vbl += vend - vis;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            vis = vend;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            i++;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * Count up visible word characters.  Control sequences
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * (starting with the CSI) aren't counted.  A space
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * generates a non-printing word, which is valid (the
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * space is printed according to regular spacing rules).
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        for (j = i, jhy = 0; j < p->col; j++) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if ((j && ' ' == p->buf[j]) || '\t' == p->buf[j])
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            /* Back over the the last printed character. */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (8 == p->buf[j]) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                assert(j);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                vend -= (*p->width)(p, p->buf[j - 1]);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                continue;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            /* Regular word. */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            /* Break at the hyphen point if we overrun. */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (vend > vis && vend < bp &&
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    ASCII_HYPH == p->buf[j])
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                jhy = j;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            vend += (*p->width)(p, p->buf[j]);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * Find out whether we would exceed the right margin.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * If so, break to the next line.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if (vend > bp && 0 == jhy && vis > 0) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            vend -= vis;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            (*p->endline)(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            p->viscol = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (TERMP_NOBREAK & p->flags) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                vbl = p->rmargin;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                vend += p->rmargin - p->offset;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            } else
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                vbl = p->offset;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            /* Remove the p->overstep width. */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            bp += (size_t)p->overstep;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            p->overstep = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        /* Write out the [remaining] word. */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        for ( ; i < p->col; i++) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (vend > bp && jhy > 0 && i > jhy)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if ('\t' == p->buf[i])
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (' ' == p->buf[i]) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                j = i;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                while (' ' == p->buf[i])
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    i++;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                dv = (size_t)(i - j) * (*p->width)(p, ' ');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                vbl += dv;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                vend += dv;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (ASCII_NBRSP == p->buf[i]) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                vbl += (*p->width)(p, ' ');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                continue;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore             * Now we definitely know there will be
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore             * printable characters to output,
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore             * so write preceding white space now.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore             */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (vbl) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                (*p->advance)(p, vbl);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                p->viscol += vbl;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                vbl = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (ASCII_HYPH == p->buf[i]) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                (*p->letter)(p, '-');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                p->viscol += (*p->width)(p, '-');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                continue;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            (*p->letter)(p, p->buf[i]);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (8 == p->buf[i])
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                p->viscol -= (*p->width)(p, p->buf[i-1]);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            else
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                p->viscol += (*p->width)(p, p->buf[i]);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        vis = vend;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * If there was trailing white space, it was not printed;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * so reset the cursor position accordingly.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (vis)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        vis -= vbl;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->col = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->overstep = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if ( ! (TERMP_NOBREAK & p->flags)) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->viscol = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        (*p->endline)(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        return;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (TERMP_HANG & p->flags) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        /* We need one blank after the tag. */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->overstep = (int)(vis - maxvis + (*p->width)(p, ' '));
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * Behave exactly the same way as groff:
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * If we have overstepped the margin, temporarily move
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * it to the right and flag the rest of the line to be
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * shorter.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * If we landed right at the margin, be happy.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * If we are one step before the margin, temporarily
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * move it one step LEFT and flag the rest of the line
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         * to be longer.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore         */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if (p->overstep < -1)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            p->overstep = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        return;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    } else if (TERMP_DANGLE & p->flags)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        return;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    /* If the column was overrun, break the line. */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (maxvis <= vis +
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        ((TERMP_TWOSPACE & p->flags) ? (*p->width)(p, ' ') : 0)) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        (*p->endline)(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->viscol = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore/*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * A newline only breaks an existing line; it won't assert vertical
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * space.  All data in the output buffer is flushed prior to the newline
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * assertion.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_newln(struct termp *p)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->flags |= TERMP_NOSPACE;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (p->col || p->viscol)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        term_flushln(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore/*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * Asserts a vertical space (a full, empty line-break between lines).
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * Note that if used twice, this will cause two blank spaces and so on.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * All data in the output buffer is flushed prior to the newline
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * assertion.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_vspace(struct termp *p)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    term_newln(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->viscol = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    (*p->endline)(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_fontlast(struct termp *p)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    enum termfont    f;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    f = p->fontl;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->fontl = p->fontq[p->fonti];
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->fontq[p->fonti] = f;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_fontrepl(struct termp *p, enum termfont f)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->fontl = p->fontq[p->fonti];
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->fontq[p->fonti] = f;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_fontpush(struct termp *p, enum termfont f)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    assert(p->fonti + 1 < 10);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->fontl = p->fontq[p->fonti];
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->fontq[++p->fonti] = f;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreconst void *
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_fontq(struct termp *p)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    return(&p->fontq[p->fonti]);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreenum termfont
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_fonttop(struct termp *p)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    return(p->fontq[p->fonti]);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_fontpopq(struct termp *p, const void *key)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    while (p->fonti >= 0 && key != &p->fontq[p->fonti])
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->fonti--;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    assert(p->fonti >= 0);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_fontpop(struct termp *p)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    assert(p->fonti);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->fonti--;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore/*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * Handle pwords, partial words, which may be either a single word or a
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * phrase that cannot be broken down (such as a literal string).  This
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * handles word styling.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorevoid
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_word(struct termp *p, const char *word)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    const char  *seq, *cp;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    char         c;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    int      sz, uc;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    size_t       ssz;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    enum mandoc_esc  esc;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if ( ! (TERMP_NOSPACE & p->flags)) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if ( ! (TERMP_KEEP & p->flags)) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (TERMP_PREKEEP & p->flags)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                p->flags |= TERMP_KEEP;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            bufferc(p, ' ');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (TERMP_SENTENCE & p->flags)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                bufferc(p, ' ');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        } else
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            bufferc(p, ASCII_NBRSP);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if ( ! (p->flags & TERMP_NONOSPACE))
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->flags &= ~TERMP_NOSPACE;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    else
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->flags |= TERMP_NOSPACE;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->flags &= ~(TERMP_SENTENCE | TERMP_IGNDELIM);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    while ('\0' != *word) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if ((ssz = strcspn(word, "\\")) > 0)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            encode(p, word, ssz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        word += (int)ssz;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if ('\\' != *word)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            continue;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        word++;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        esc = mandoc_escape(&word, &seq, &sz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if (ESCAPE_ERROR == esc)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if (TERMENC_ASCII != p->enc)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            switch (esc) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            case (ESCAPE_UNICODE):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                uc = mchars_num2uc(seq + 1, sz - 1);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                if ('\0' == uc)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                encode1(p, uc);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                continue;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            case (ESCAPE_SPECIAL):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                uc = mchars_spec2cp(p->symtab, seq, sz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                if (uc <= 0)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                encode1(p, uc);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                continue;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            default:
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        switch (esc) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ESCAPE_UNICODE):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            encode1(p, '?');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ESCAPE_NUMBERED):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            c = mchars_num2char(seq, sz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if ('\0' != c)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                encode(p, &c, 1);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ESCAPE_SPECIAL):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            cp = mchars_spec2str(p->symtab, seq, sz, &ssz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (NULL != cp)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                encode(p, cp, ssz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            else if (1 == ssz)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                encode(p, seq, sz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ESCAPE_FONTBOLD):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            term_fontrepl(p, TERMFONT_BOLD);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ESCAPE_FONTITALIC):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            term_fontrepl(p, TERMFONT_UNDER);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ESCAPE_FONT):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            /* FALLTHROUGH */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ESCAPE_FONTROMAN):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            term_fontrepl(p, TERMFONT_NONE);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ESCAPE_FONTPREV):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            term_fontlast(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ESCAPE_NOSPACE):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if ('\0' == *word)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                p->flags |= TERMP_NOSPACE;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        default:
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorestatic void
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreadjbuf(struct termp *p, int sz)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (0 == p->maxcols)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->maxcols = 1024;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    while (sz >= p->maxcols)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->maxcols <<= 2;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->buf = mandoc_realloc
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        (p->buf, sizeof(int) * (size_t)p->maxcols);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorestatic void
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorebufferc(struct termp *p, char c)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (p->col + 1 >= p->maxcols)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        adjbuf(p, p->col + 1);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->buf[p->col++] = c;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore/*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * See encode().
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * Do this for a single (probably unicode) value.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore * Does not check for non-decorated glyphs.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorestatic void
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreencode1(struct termp *p, int c)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    enum termfont     f;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (p->col + 4 >= p->maxcols)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        adjbuf(p, p->col + 4);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    f = term_fonttop(p);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (TERMFONT_NONE == f) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->buf[p->col++] = c;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        return;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    } else if (TERMFONT_UNDER == f) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->buf[p->col++] = '_';
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    } else
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->buf[p->col++] = c;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->buf[p->col++] = 8;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    p->buf[p->col++] = c;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amorestatic void
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreencode(struct termp *p, const char *word, size_t sz)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    enum termfont     f;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    int       i, len;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    /* LINTED */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    len = sz;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * Encode and buffer a string of characters.  If the current
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * font mode is unset, buffer directly, else encode then buffer
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * character by character.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (TERMFONT_NONE == (f = term_fonttop(p))) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if (p->col + len >= p->maxcols)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            adjbuf(p, p->col + len);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        for (i = 0; i < len; i++)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            p->buf[p->col++] = word[i];
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        return;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    /* Pre-buffer, assuming worst-case. */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (p->col + 1 + (len * 3) >= p->maxcols)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        adjbuf(p, p->col + 1 + (len * 3));
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    for (i = 0; i < len; i++) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if (ASCII_HYPH != word[i] &&
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            ! isgraph((unsigned char)word[i])) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            p->buf[p->col++] = word[i];
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            continue;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        if (TERMFONT_UNDER == f)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            p->buf[p->col++] = '_';
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        else if (ASCII_HYPH == word[i])
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            p->buf[p->col++] = '-';
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        else
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            p->buf[p->col++] = word[i];
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->buf[p->col++] = 8;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        p->buf[p->col++] = word[i];
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoresize_t
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_len(const struct termp *p, size_t sz)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    return((*p->width)(p, ' ') * sz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoresize_t
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_strlen(const struct termp *p, const char *cp)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    size_t       sz, rsz, i;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    int      ssz, c;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    const char  *seq, *rhs;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    enum mandoc_esc  esc;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    static const char rej[] = { '\\', ASCII_HYPH, ASCII_NBRSP, '\0' };
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    /*
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * Account for escaped sequences within string length
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * calculations.  This follows the logic in term_word() as we
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     * must calculate the width of produced strings.
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore     */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    sz = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    while ('\0' != *cp) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        rsz = strcspn(cp, rej);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        for (i = 0; i < rsz; i++)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            sz += (*p->width)(p, *cp++);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        c = 0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        switch (*cp) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case ('\\'):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            cp++;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            esc = mandoc_escape(&cp, &seq, &ssz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (ESCAPE_ERROR == esc)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                return(sz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (TERMENC_ASCII != p->enc)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                switch (esc) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                case (ESCAPE_UNICODE):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    c = mchars_num2uc
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                        (seq + 1, ssz - 1);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    if ('\0' == c)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                        break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    sz += (*p->width)(p, c);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    continue;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                case (ESCAPE_SPECIAL):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    c = mchars_spec2cp
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                        (p->symtab, seq, ssz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    if (c <= 0)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                        break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    sz += (*p->width)(p, c);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    continue;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                default:
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            rhs = NULL;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            switch (esc) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            case (ESCAPE_UNICODE):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                sz += (*p->width)(p, '?');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            case (ESCAPE_NUMBERED):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                c = mchars_num2char(seq, ssz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                if ('\0' != c)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    sz += (*p->width)(p, c);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            case (ESCAPE_SPECIAL):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                rhs = mchars_spec2str
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    (p->symtab, seq, ssz, &rsz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                if (ssz != 1 || rhs)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                    break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                rhs = seq;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                rsz = ssz;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            default:
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            if (NULL == rhs)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            for (i = 0; i < rsz; i++)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore                sz += (*p->width)(p, *rhs++);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ASCII_NBRSP):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            sz += (*p->width)(p, ' ');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            cp++;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        case (ASCII_HYPH):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            sz += (*p->width)(p, '-');
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            cp++;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        default:
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    return(sz);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore/* ARGSUSED */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoresize_t
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_vspan(const struct termp *p, const struct roffsu *su)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    double       r;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    switch (su->unit) {
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    case (SCALE_CM):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        r = su->scale * 2;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    case (SCALE_IN):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        r = su->scale * 6;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    case (SCALE_PC):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        r = su->scale;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    case (SCALE_PT):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        r = su->scale / 8;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    case (SCALE_MM):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        r = su->scale / 1000;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    case (SCALE_VS):
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        r = su->scale;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    default:
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        r = su->scale - 1;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        break;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    }
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (r < 0.0)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        r = 0.0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    return(/* LINTED */(size_t)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            r);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoresize_t
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amoreterm_hspan(const struct termp *p, const struct roffsu *su)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore{
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    double       v;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    v = ((*p->hspan)(p, su));
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    if (v < 0.0)
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore        v = 0.0;
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore    return((size_t) /* LINTED */
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore            v);
95c635efb7c3b86efc493e0447eaec7aecca3f0fGarrett D'Amore}