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Diffstat (limited to 'usr.bin/mandoc/mdoc_term.c')
-rw-r--r--usr.bin/mandoc/mdoc_term.c1962
1 files changed, 1962 insertions, 0 deletions
diff --git a/usr.bin/mandoc/mdoc_term.c b/usr.bin/mandoc/mdoc_term.c
new file mode 100644
index 0000000..6362a21
--- /dev/null
+++ b/usr.bin/mandoc/mdoc_term.c
@@ -0,0 +1,1962 @@
+/* $OpenBSD: mdoc_term.c,v 1.279 2020/04/06 09:55:49 schwarze Exp $ */
+/*
+ * Copyright (c) 2010, 2012-2020 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2013 Franco Fichtner <franco@lastsummer.de>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Plain text formatter for mdoc(7), used by mandoc(1)
+ * for ASCII, UTF-8, PostScript, and PDF output.
+ */
+#include <sys/types.h>
+
+#include <assert.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "mandoc_aux.h"
+#include "roff.h"
+#include "mdoc.h"
+#include "out.h"
+#include "term.h"
+#include "term_tag.h"
+#include "main.h"
+
+struct termpair {
+ struct termpair *ppair;
+ int count;
+};
+
+#define DECL_ARGS struct termp *p, \
+ struct termpair *pair, \
+ const struct roff_meta *meta, \
+ struct roff_node *n
+
+struct mdoc_term_act {
+ int (*pre)(DECL_ARGS);
+ void (*post)(DECL_ARGS);
+};
+
+static int a2width(const struct termp *, const char *);
+
+static void print_bvspace(struct termp *,
+ struct roff_node *, struct roff_node *);
+static void print_mdoc_node(DECL_ARGS);
+static void print_mdoc_nodelist(DECL_ARGS);
+static void print_mdoc_head(struct termp *, const struct roff_meta *);
+static void print_mdoc_foot(struct termp *, const struct roff_meta *);
+static void synopsis_pre(struct termp *, struct roff_node *);
+
+static void termp____post(DECL_ARGS);
+static void termp__t_post(DECL_ARGS);
+static void termp_bd_post(DECL_ARGS);
+static void termp_bk_post(DECL_ARGS);
+static void termp_bl_post(DECL_ARGS);
+static void termp_eo_post(DECL_ARGS);
+static void termp_fd_post(DECL_ARGS);
+static void termp_fo_post(DECL_ARGS);
+static void termp_in_post(DECL_ARGS);
+static void termp_it_post(DECL_ARGS);
+static void termp_lb_post(DECL_ARGS);
+static void termp_nm_post(DECL_ARGS);
+static void termp_pf_post(DECL_ARGS);
+static void termp_quote_post(DECL_ARGS);
+static void termp_sh_post(DECL_ARGS);
+static void termp_ss_post(DECL_ARGS);
+static void termp_xx_post(DECL_ARGS);
+
+static int termp__a_pre(DECL_ARGS);
+static int termp__t_pre(DECL_ARGS);
+static int termp_abort_pre(DECL_ARGS);
+static int termp_an_pre(DECL_ARGS);
+static int termp_ap_pre(DECL_ARGS);
+static int termp_bd_pre(DECL_ARGS);
+static int termp_bf_pre(DECL_ARGS);
+static int termp_bk_pre(DECL_ARGS);
+static int termp_bl_pre(DECL_ARGS);
+static int termp_bold_pre(DECL_ARGS);
+static int termp_d1_pre(DECL_ARGS);
+static int termp_eo_pre(DECL_ARGS);
+static int termp_ex_pre(DECL_ARGS);
+static int termp_fa_pre(DECL_ARGS);
+static int termp_fd_pre(DECL_ARGS);
+static int termp_fl_pre(DECL_ARGS);
+static int termp_fn_pre(DECL_ARGS);
+static int termp_fo_pre(DECL_ARGS);
+static int termp_ft_pre(DECL_ARGS);
+static int termp_in_pre(DECL_ARGS);
+static int termp_it_pre(DECL_ARGS);
+static int termp_li_pre(DECL_ARGS);
+static int termp_lk_pre(DECL_ARGS);
+static int termp_nd_pre(DECL_ARGS);
+static int termp_nm_pre(DECL_ARGS);
+static int termp_ns_pre(DECL_ARGS);
+static int termp_quote_pre(DECL_ARGS);
+static int termp_rs_pre(DECL_ARGS);
+static int termp_sh_pre(DECL_ARGS);
+static int termp_skip_pre(DECL_ARGS);
+static int termp_sm_pre(DECL_ARGS);
+static int termp_pp_pre(DECL_ARGS);
+static int termp_ss_pre(DECL_ARGS);
+static int termp_under_pre(DECL_ARGS);
+static int termp_vt_pre(DECL_ARGS);
+static int termp_xr_pre(DECL_ARGS);
+static int termp_xx_pre(DECL_ARGS);
+
+static const struct mdoc_term_act mdoc_term_acts[MDOC_MAX - MDOC_Dd] = {
+ { NULL, NULL }, /* Dd */
+ { NULL, NULL }, /* Dt */
+ { NULL, NULL }, /* Os */
+ { termp_sh_pre, termp_sh_post }, /* Sh */
+ { termp_ss_pre, termp_ss_post }, /* Ss */
+ { termp_pp_pre, NULL }, /* Pp */
+ { termp_d1_pre, termp_bl_post }, /* D1 */
+ { termp_d1_pre, termp_bl_post }, /* Dl */
+ { termp_bd_pre, termp_bd_post }, /* Bd */
+ { NULL, NULL }, /* Ed */
+ { termp_bl_pre, termp_bl_post }, /* Bl */
+ { NULL, NULL }, /* El */
+ { termp_it_pre, termp_it_post }, /* It */
+ { termp_under_pre, NULL }, /* Ad */
+ { termp_an_pre, NULL }, /* An */
+ { termp_ap_pre, NULL }, /* Ap */
+ { termp_under_pre, NULL }, /* Ar */
+ { termp_fd_pre, NULL }, /* Cd */
+ { termp_bold_pre, NULL }, /* Cm */
+ { termp_li_pre, NULL }, /* Dv */
+ { NULL, NULL }, /* Er */
+ { NULL, NULL }, /* Ev */
+ { termp_ex_pre, NULL }, /* Ex */
+ { termp_fa_pre, NULL }, /* Fa */
+ { termp_fd_pre, termp_fd_post }, /* Fd */
+ { termp_fl_pre, NULL }, /* Fl */
+ { termp_fn_pre, NULL }, /* Fn */
+ { termp_ft_pre, NULL }, /* Ft */
+ { termp_bold_pre, NULL }, /* Ic */
+ { termp_in_pre, termp_in_post }, /* In */
+ { termp_li_pre, NULL }, /* Li */
+ { termp_nd_pre, NULL }, /* Nd */
+ { termp_nm_pre, termp_nm_post }, /* Nm */
+ { termp_quote_pre, termp_quote_post }, /* Op */
+ { termp_abort_pre, NULL }, /* Ot */
+ { termp_under_pre, NULL }, /* Pa */
+ { termp_ex_pre, NULL }, /* Rv */
+ { NULL, NULL }, /* St */
+ { termp_under_pre, NULL }, /* Va */
+ { termp_vt_pre, NULL }, /* Vt */
+ { termp_xr_pre, NULL }, /* Xr */
+ { termp__a_pre, termp____post }, /* %A */
+ { termp_under_pre, termp____post }, /* %B */
+ { NULL, termp____post }, /* %D */
+ { termp_under_pre, termp____post }, /* %I */
+ { termp_under_pre, termp____post }, /* %J */
+ { NULL, termp____post }, /* %N */
+ { NULL, termp____post }, /* %O */
+ { NULL, termp____post }, /* %P */
+ { NULL, termp____post }, /* %R */
+ { termp__t_pre, termp__t_post }, /* %T */
+ { NULL, termp____post }, /* %V */
+ { NULL, NULL }, /* Ac */
+ { termp_quote_pre, termp_quote_post }, /* Ao */
+ { termp_quote_pre, termp_quote_post }, /* Aq */
+ { NULL, NULL }, /* At */
+ { NULL, NULL }, /* Bc */
+ { termp_bf_pre, NULL }, /* Bf */
+ { termp_quote_pre, termp_quote_post }, /* Bo */
+ { termp_quote_pre, termp_quote_post }, /* Bq */
+ { termp_xx_pre, termp_xx_post }, /* Bsx */
+ { NULL, NULL }, /* Bx */
+ { termp_skip_pre, NULL }, /* Db */
+ { NULL, NULL }, /* Dc */
+ { termp_quote_pre, termp_quote_post }, /* Do */
+ { termp_quote_pre, termp_quote_post }, /* Dq */
+ { NULL, NULL }, /* Ec */ /* FIXME: no space */
+ { NULL, NULL }, /* Ef */
+ { termp_under_pre, NULL }, /* Em */
+ { termp_eo_pre, termp_eo_post }, /* Eo */
+ { termp_xx_pre, termp_xx_post }, /* Fx */
+ { termp_bold_pre, NULL }, /* Ms */
+ { termp_li_pre, NULL }, /* No */
+ { termp_ns_pre, NULL }, /* Ns */
+ { termp_xx_pre, termp_xx_post }, /* Nx */
+ { termp_xx_pre, termp_xx_post }, /* Ox */
+ { NULL, NULL }, /* Pc */
+ { NULL, termp_pf_post }, /* Pf */
+ { termp_quote_pre, termp_quote_post }, /* Po */
+ { termp_quote_pre, termp_quote_post }, /* Pq */
+ { NULL, NULL }, /* Qc */
+ { termp_quote_pre, termp_quote_post }, /* Ql */
+ { termp_quote_pre, termp_quote_post }, /* Qo */
+ { termp_quote_pre, termp_quote_post }, /* Qq */
+ { NULL, NULL }, /* Re */
+ { termp_rs_pre, NULL }, /* Rs */
+ { NULL, NULL }, /* Sc */
+ { termp_quote_pre, termp_quote_post }, /* So */
+ { termp_quote_pre, termp_quote_post }, /* Sq */
+ { termp_sm_pre, NULL }, /* Sm */
+ { termp_under_pre, NULL }, /* Sx */
+ { termp_bold_pre, NULL }, /* Sy */
+ { NULL, NULL }, /* Tn */
+ { termp_xx_pre, termp_xx_post }, /* Ux */
+ { NULL, NULL }, /* Xc */
+ { NULL, NULL }, /* Xo */
+ { termp_fo_pre, termp_fo_post }, /* Fo */
+ { NULL, NULL }, /* Fc */
+ { termp_quote_pre, termp_quote_post }, /* Oo */
+ { NULL, NULL }, /* Oc */
+ { termp_bk_pre, termp_bk_post }, /* Bk */
+ { NULL, NULL }, /* Ek */
+ { NULL, NULL }, /* Bt */
+ { NULL, NULL }, /* Hf */
+ { termp_under_pre, NULL }, /* Fr */
+ { NULL, NULL }, /* Ud */
+ { NULL, termp_lb_post }, /* Lb */
+ { termp_abort_pre, NULL }, /* Lp */
+ { termp_lk_pre, NULL }, /* Lk */
+ { termp_under_pre, NULL }, /* Mt */
+ { termp_quote_pre, termp_quote_post }, /* Brq */
+ { termp_quote_pre, termp_quote_post }, /* Bro */
+ { NULL, NULL }, /* Brc */
+ { NULL, termp____post }, /* %C */
+ { termp_skip_pre, NULL }, /* Es */
+ { termp_quote_pre, termp_quote_post }, /* En */
+ { termp_xx_pre, termp_xx_post }, /* Dx */
+ { NULL, termp____post }, /* %Q */
+ { NULL, termp____post }, /* %U */
+ { NULL, NULL }, /* Ta */
+ { termp_skip_pre, NULL }, /* Tg */
+};
+
+
+void
+terminal_mdoc(void *arg, const struct roff_meta *mdoc)
+{
+ struct roff_node *n, *nn;
+ struct termp *p;
+ size_t save_defindent;
+
+ p = (struct termp *)arg;
+ p->tcol->rmargin = p->maxrmargin = p->defrmargin;
+ term_tab_set(p, NULL);
+ term_tab_set(p, "T");
+ term_tab_set(p, ".5i");
+
+ n = mdoc->first->child;
+ if (p->synopsisonly) {
+ for (nn = NULL; n != NULL; n = n->next) {
+ if (n->tok != MDOC_Sh)
+ continue;
+ if (n->sec == SEC_SYNOPSIS)
+ break;
+ if (nn == NULL && n->sec == SEC_NAME)
+ nn = n;
+ }
+ if (n == NULL)
+ n = nn;
+ p->flags |= TERMP_NOSPACE;
+ if (n != NULL && (n = n->child->next->child) != NULL)
+ print_mdoc_nodelist(p, NULL, mdoc, n);
+ term_newln(p);
+ } else {
+ save_defindent = p->defindent;
+ if (p->defindent == 0)
+ p->defindent = 5;
+ term_begin(p, print_mdoc_head, print_mdoc_foot, mdoc);
+ while (n != NULL &&
+ (n->type == ROFFT_COMMENT ||
+ n->flags & NODE_NOPRT))
+ n = n->next;
+ if (n != NULL) {
+ if (n->tok != MDOC_Sh)
+ term_vspace(p);
+ print_mdoc_nodelist(p, NULL, mdoc, n);
+ }
+ term_end(p);
+ p->defindent = save_defindent;
+ }
+}
+
+static void
+print_mdoc_nodelist(DECL_ARGS)
+{
+ while (n != NULL) {
+ print_mdoc_node(p, pair, meta, n);
+ n = n->next;
+ }
+}
+
+static void
+print_mdoc_node(DECL_ARGS)
+{
+ const struct mdoc_term_act *act;
+ struct termpair npair;
+ size_t offset, rmargin;
+ int chld;
+
+ /*
+ * In no-fill mode, break the output line at the beginning
+ * of new input lines except after \c, and nowhere else.
+ */
+
+ if (n->flags & NODE_NOFILL) {
+ if (n->flags & NODE_LINE &&
+ (p->flags & TERMP_NONEWLINE) == 0)
+ term_newln(p);
+ p->flags |= TERMP_BRNEVER;
+ } else
+ p->flags &= ~TERMP_BRNEVER;
+
+ if (n->type == ROFFT_COMMENT || n->flags & NODE_NOPRT)
+ return;
+
+ chld = 1;
+ offset = p->tcol->offset;
+ rmargin = p->tcol->rmargin;
+ n->flags &= ~NODE_ENDED;
+ n->prev_font = p->fonti;
+
+ memset(&npair, 0, sizeof(struct termpair));
+ npair.ppair = pair;
+
+ if (n->flags & NODE_ID && n->tok != MDOC_Pp &&
+ (n->tok != MDOC_It || n->type != ROFFT_BLOCK))
+ term_tag_write(n, p->line);
+
+ /*
+ * Keeps only work until the end of a line. If a keep was
+ * invoked in a prior line, revert it to PREKEEP.
+ */
+
+ if (p->flags & TERMP_KEEP && n->flags & NODE_LINE) {
+ p->flags &= ~TERMP_KEEP;
+ p->flags |= TERMP_PREKEEP;
+ }
+
+ /*
+ * After the keep flags have been set up, we may now
+ * produce output. Note that some pre-handlers do so.
+ */
+
+ act = NULL;
+ switch (n->type) {
+ case ROFFT_TEXT:
+ if (n->flags & NODE_LINE) {
+ switch (*n->string) {
+ case '\0':
+ if (p->flags & TERMP_NONEWLINE)
+ term_newln(p);
+ else
+ term_vspace(p);
+ return;
+ case ' ':
+ if ((p->flags & TERMP_NONEWLINE) == 0)
+ term_newln(p);
+ break;
+ default:
+ break;
+ }
+ }
+ if (NODE_DELIMC & n->flags)
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, n->string);
+ if (NODE_DELIMO & n->flags)
+ p->flags |= TERMP_NOSPACE;
+ break;
+ case ROFFT_EQN:
+ if ( ! (n->flags & NODE_LINE))
+ p->flags |= TERMP_NOSPACE;
+ term_eqn(p, n->eqn);
+ if (n->next != NULL && ! (n->next->flags & NODE_LINE))
+ p->flags |= TERMP_NOSPACE;
+ break;
+ case ROFFT_TBL:
+ if (p->tbl.cols == NULL)
+ term_newln(p);
+ term_tbl(p, n->span);
+ break;
+ default:
+ if (n->tok < ROFF_MAX) {
+ roff_term_pre(p, n);
+ return;
+ }
+ assert(n->tok >= MDOC_Dd && n->tok < MDOC_MAX);
+ act = mdoc_term_acts + (n->tok - MDOC_Dd);
+ if (act->pre != NULL &&
+ (n->end == ENDBODY_NOT || n->child != NULL))
+ chld = (*act->pre)(p, &npair, meta, n);
+ break;
+ }
+
+ if (chld && n->child)
+ print_mdoc_nodelist(p, &npair, meta, n->child);
+
+ term_fontpopq(p,
+ (ENDBODY_NOT == n->end ? n : n->body)->prev_font);
+
+ switch (n->type) {
+ case ROFFT_TEXT:
+ break;
+ case ROFFT_TBL:
+ break;
+ case ROFFT_EQN:
+ break;
+ default:
+ if (act->post == NULL || n->flags & NODE_ENDED)
+ break;
+ (void)(*act->post)(p, &npair, meta, n);
+
+ /*
+ * Explicit end tokens not only call the post
+ * handler, but also tell the respective block
+ * that it must not call the post handler again.
+ */
+ if (ENDBODY_NOT != n->end)
+ n->body->flags |= NODE_ENDED;
+ break;
+ }
+
+ if (NODE_EOS & n->flags)
+ p->flags |= TERMP_SENTENCE;
+
+ if (n->type != ROFFT_TEXT)
+ p->tcol->offset = offset;
+ p->tcol->rmargin = rmargin;
+}
+
+static void
+print_mdoc_foot(struct termp *p, const struct roff_meta *meta)
+{
+ size_t sz;
+
+ term_fontrepl(p, TERMFONT_NONE);
+
+ /*
+ * Output the footer in new-groff style, that is, three columns
+ * with the middle being the manual date and flanking columns
+ * being the operating system:
+ *
+ * SYSTEM DATE SYSTEM
+ */
+
+ term_vspace(p);
+
+ p->tcol->offset = 0;
+ sz = term_strlen(p, meta->date);
+ p->tcol->rmargin = p->maxrmargin > sz ?
+ (p->maxrmargin + term_len(p, 1) - sz) / 2 : 0;
+ p->trailspace = 1;
+ p->flags |= TERMP_NOSPACE | TERMP_NOBREAK;
+
+ term_word(p, meta->os);
+ term_flushln(p);
+
+ p->tcol->offset = p->tcol->rmargin;
+ sz = term_strlen(p, meta->os);
+ p->tcol->rmargin = p->maxrmargin > sz ? p->maxrmargin - sz : 0;
+ p->flags |= TERMP_NOSPACE;
+
+ term_word(p, meta->date);
+ term_flushln(p);
+
+ p->tcol->offset = p->tcol->rmargin;
+ p->tcol->rmargin = p->maxrmargin;
+ p->trailspace = 0;
+ p->flags &= ~TERMP_NOBREAK;
+ p->flags |= TERMP_NOSPACE;
+
+ term_word(p, meta->os);
+ term_flushln(p);
+
+ p->tcol->offset = 0;
+ p->tcol->rmargin = p->maxrmargin;
+ p->flags = 0;
+}
+
+static void
+print_mdoc_head(struct termp *p, const struct roff_meta *meta)
+{
+ char *volume, *title;
+ size_t vollen, titlen;
+
+ /*
+ * The header is strange. It has three components, which are
+ * really two with the first duplicated. It goes like this:
+ *
+ * IDENTIFIER TITLE IDENTIFIER
+ *
+ * The IDENTIFIER is NAME(SECTION), which is the command-name
+ * (if given, or "unknown" if not) followed by the manual page
+ * section. These are given in `Dt'. The TITLE is a free-form
+ * string depending on the manual volume. If not specified, it
+ * switches on the manual section.
+ */
+
+ assert(meta->vol);
+ if (NULL == meta->arch)
+ volume = mandoc_strdup(meta->vol);
+ else
+ mandoc_asprintf(&volume, "%s (%s)",
+ meta->vol, meta->arch);
+ vollen = term_strlen(p, volume);
+
+ if (NULL == meta->msec)
+ title = mandoc_strdup(meta->title);
+ else
+ mandoc_asprintf(&title, "%s(%s)",
+ meta->title, meta->msec);
+ titlen = term_strlen(p, title);
+
+ p->flags |= TERMP_NOBREAK | TERMP_NOSPACE;
+ p->trailspace = 1;
+ p->tcol->offset = 0;
+ p->tcol->rmargin = 2 * (titlen+1) + vollen < p->maxrmargin ?
+ (p->maxrmargin - vollen + term_len(p, 1)) / 2 :
+ vollen < p->maxrmargin ? p->maxrmargin - vollen : 0;
+
+ term_word(p, title);
+ term_flushln(p);
+
+ p->flags |= TERMP_NOSPACE;
+ p->tcol->offset = p->tcol->rmargin;
+ p->tcol->rmargin = p->tcol->offset + vollen + titlen <
+ p->maxrmargin ? p->maxrmargin - titlen : p->maxrmargin;
+
+ term_word(p, volume);
+ term_flushln(p);
+
+ p->flags &= ~TERMP_NOBREAK;
+ p->trailspace = 0;
+ if (p->tcol->rmargin + titlen <= p->maxrmargin) {
+ p->flags |= TERMP_NOSPACE;
+ p->tcol->offset = p->tcol->rmargin;
+ p->tcol->rmargin = p->maxrmargin;
+ term_word(p, title);
+ term_flushln(p);
+ }
+
+ p->flags &= ~TERMP_NOSPACE;
+ p->tcol->offset = 0;
+ p->tcol->rmargin = p->maxrmargin;
+ free(title);
+ free(volume);
+}
+
+static int
+a2width(const struct termp *p, const char *v)
+{
+ struct roffsu su;
+ const char *end;
+
+ end = a2roffsu(v, &su, SCALE_MAX);
+ if (end == NULL || *end != '\0') {
+ SCALE_HS_INIT(&su, term_strlen(p, v));
+ su.scale /= term_strlen(p, "0");
+ }
+ return term_hen(p, &su);
+}
+
+/*
+ * Determine how much space to print out before block elements of `It'
+ * (and thus `Bl') and `Bd'. And then go ahead and print that space,
+ * too.
+ */
+static void
+print_bvspace(struct termp *p, struct roff_node *bl, struct roff_node *n)
+{
+ struct roff_node *nn;
+
+ term_newln(p);
+
+ if ((bl->tok == MDOC_Bd && bl->norm->Bd.comp) ||
+ (bl->tok == MDOC_Bl && bl->norm->Bl.comp))
+ return;
+
+ /* Do not vspace directly after Ss/Sh. */
+
+ nn = n;
+ while (roff_node_prev(nn) == NULL) {
+ do {
+ nn = nn->parent;
+ if (nn->type == ROFFT_ROOT)
+ return;
+ } while (nn->type != ROFFT_BLOCK);
+ if (nn->tok == MDOC_Sh || nn->tok == MDOC_Ss)
+ return;
+ if (nn->tok == MDOC_It &&
+ nn->parent->parent->norm->Bl.type != LIST_item)
+ break;
+ }
+
+ /*
+ * No vertical space after:
+ * items in .Bl -column
+ * items without a body in .Bl -diag
+ */
+
+ if (bl->tok != MDOC_Bl ||
+ n->prev == NULL || n->prev->tok != MDOC_It ||
+ (bl->norm->Bl.type != LIST_column &&
+ (bl->norm->Bl.type != LIST_diag ||
+ n->prev->body->child != NULL)))
+ term_vspace(p);
+}
+
+
+static int
+termp_it_pre(DECL_ARGS)
+{
+ struct roffsu su;
+ char buf[24];
+ const struct roff_node *bl, *nn;
+ size_t ncols, dcol;
+ int i, offset, width;
+ enum mdoc_list type;
+
+ if (n->type == ROFFT_BLOCK) {
+ print_bvspace(p, n->parent->parent, n);
+ if (n->flags & NODE_ID)
+ term_tag_write(n, p->line);
+ return 1;
+ }
+
+ bl = n->parent->parent->parent;
+ type = bl->norm->Bl.type;
+
+ /*
+ * Defaults for specific list types.
+ */
+
+ switch (type) {
+ case LIST_bullet:
+ case LIST_dash:
+ case LIST_hyphen:
+ case LIST_enum:
+ width = term_len(p, 2);
+ break;
+ case LIST_hang:
+ case LIST_tag:
+ width = term_len(p, 8);
+ break;
+ case LIST_column:
+ width = term_len(p, 10);
+ break;
+ default:
+ width = 0;
+ break;
+ }
+ offset = 0;
+
+ /*
+ * First calculate width and offset. This is pretty easy unless
+ * we're a -column list, in which case all prior columns must
+ * be accounted for.
+ */
+
+ if (bl->norm->Bl.offs != NULL) {
+ offset = a2width(p, bl->norm->Bl.offs);
+ if (offset < 0 && (size_t)(-offset) > p->tcol->offset)
+ offset = -p->tcol->offset;
+ else if (offset > SHRT_MAX)
+ offset = 0;
+ }
+
+ switch (type) {
+ case LIST_column:
+ if (n->type == ROFFT_HEAD)
+ break;
+
+ /*
+ * Imitate groff's column handling:
+ * - For each earlier column, add its width.
+ * - For less than 5 columns, add four more blanks per
+ * column.
+ * - For exactly 5 columns, add three more blank per
+ * column.
+ * - For more than 5 columns, add only one column.
+ */
+ ncols = bl->norm->Bl.ncols;
+ dcol = ncols < 5 ? term_len(p, 4) :
+ ncols == 5 ? term_len(p, 3) : term_len(p, 1);
+
+ /*
+ * Calculate the offset by applying all prior ROFFT_BODY,
+ * so we stop at the ROFFT_HEAD (nn->prev == NULL).
+ */
+
+ for (i = 0, nn = n->prev;
+ nn->prev && i < (int)ncols;
+ nn = nn->prev, i++) {
+ SCALE_HS_INIT(&su,
+ term_strlen(p, bl->norm->Bl.cols[i]));
+ su.scale /= term_strlen(p, "0");
+ offset += term_hen(p, &su) + dcol;
+ }
+
+ /*
+ * When exceeding the declared number of columns, leave
+ * the remaining widths at 0. This will later be
+ * adjusted to the default width of 10, or, for the last
+ * column, stretched to the right margin.
+ */
+ if (i >= (int)ncols)
+ break;
+
+ /*
+ * Use the declared column widths, extended as explained
+ * in the preceding paragraph.
+ */
+ SCALE_HS_INIT(&su, term_strlen(p, bl->norm->Bl.cols[i]));
+ su.scale /= term_strlen(p, "0");
+ width = term_hen(p, &su) + dcol;
+ break;
+ default:
+ if (NULL == bl->norm->Bl.width)
+ break;
+
+ /*
+ * Note: buffer the width by 2, which is groff's magic
+ * number for buffering single arguments. See the above
+ * handling for column for how this changes.
+ */
+ width = a2width(p, bl->norm->Bl.width) + term_len(p, 2);
+ if (width < 0 && (size_t)(-width) > p->tcol->offset)
+ width = -p->tcol->offset;
+ else if (width > SHRT_MAX)
+ width = 0;
+ break;
+ }
+
+ /*
+ * Whitespace control. Inset bodies need an initial space,
+ * while diagonal bodies need two.
+ */
+
+ p->flags |= TERMP_NOSPACE;
+
+ switch (type) {
+ case LIST_diag:
+ if (n->type == ROFFT_BODY)
+ term_word(p, "\\ \\ ");
+ break;
+ case LIST_inset:
+ if (n->type == ROFFT_BODY && n->parent->head->child != NULL)
+ term_word(p, "\\ ");
+ break;
+ default:
+ break;
+ }
+
+ p->flags |= TERMP_NOSPACE;
+
+ switch (type) {
+ case LIST_diag:
+ if (n->type == ROFFT_HEAD)
+ term_fontpush(p, TERMFONT_BOLD);
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * Pad and break control. This is the tricky part. These flags
+ * are documented in term_flushln() in term.c. Note that we're
+ * going to unset all of these flags in termp_it_post() when we
+ * exit.
+ */
+
+ switch (type) {
+ case LIST_enum:
+ case LIST_bullet:
+ case LIST_dash:
+ case LIST_hyphen:
+ if (n->type == ROFFT_HEAD) {
+ p->flags |= TERMP_NOBREAK | TERMP_HANG;
+ p->trailspace = 1;
+ } else if (width <= (int)term_len(p, 2))
+ p->flags |= TERMP_NOPAD;
+ break;
+ case LIST_hang:
+ if (n->type != ROFFT_HEAD)
+ break;
+ p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
+ p->trailspace = 1;
+ break;
+ case LIST_tag:
+ if (n->type != ROFFT_HEAD)
+ break;
+
+ p->flags |= TERMP_NOBREAK | TERMP_BRTRSP | TERMP_BRIND;
+ p->trailspace = 2;
+
+ if (NULL == n->next || NULL == n->next->child)
+ p->flags |= TERMP_HANG;
+ break;
+ case LIST_column:
+ if (n->type == ROFFT_HEAD)
+ break;
+
+ if (NULL == n->next) {
+ p->flags &= ~TERMP_NOBREAK;
+ p->trailspace = 0;
+ } else {
+ p->flags |= TERMP_NOBREAK;
+ p->trailspace = 1;
+ }
+
+ break;
+ case LIST_diag:
+ if (n->type != ROFFT_HEAD)
+ break;
+ p->flags |= TERMP_NOBREAK | TERMP_BRIND;
+ p->trailspace = 1;
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * Margin control. Set-head-width lists have their right
+ * margins shortened. The body for these lists has the offset
+ * necessarily lengthened. Everybody gets the offset.
+ */
+
+ p->tcol->offset += offset;
+
+ switch (type) {
+ case LIST_bullet:
+ case LIST_dash:
+ case LIST_enum:
+ case LIST_hyphen:
+ case LIST_hang:
+ case LIST_tag:
+ if (n->type == ROFFT_HEAD)
+ p->tcol->rmargin = p->tcol->offset + width;
+ else
+ p->tcol->offset += width;
+ break;
+ case LIST_column:
+ assert(width);
+ p->tcol->rmargin = p->tcol->offset + width;
+ /*
+ * XXX - this behaviour is not documented: the
+ * right-most column is filled to the right margin.
+ */
+ if (n->type == ROFFT_HEAD)
+ break;
+ if (n->next == NULL && p->tcol->rmargin < p->maxrmargin)
+ p->tcol->rmargin = p->maxrmargin;
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * The dash, hyphen, bullet and enum lists all have a special
+ * HEAD character (temporarily bold, in some cases).
+ */
+
+ if (n->type == ROFFT_HEAD)
+ switch (type) {
+ case LIST_bullet:
+ term_fontpush(p, TERMFONT_BOLD);
+ term_word(p, "\\[bu]");
+ term_fontpop(p);
+ break;
+ case LIST_dash:
+ case LIST_hyphen:
+ term_fontpush(p, TERMFONT_BOLD);
+ term_word(p, "-");
+ term_fontpop(p);
+ break;
+ case LIST_enum:
+ (pair->ppair->ppair->count)++;
+ (void)snprintf(buf, sizeof(buf), "%d.",
+ pair->ppair->ppair->count);
+ term_word(p, buf);
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * If we're not going to process our children, indicate so here.
+ */
+
+ switch (type) {
+ case LIST_bullet:
+ case LIST_item:
+ case LIST_dash:
+ case LIST_hyphen:
+ case LIST_enum:
+ if (n->type == ROFFT_HEAD)
+ return 0;
+ break;
+ case LIST_column:
+ if (n->type == ROFFT_HEAD)
+ return 0;
+ p->minbl = 0;
+ break;
+ default:
+ break;
+ }
+
+ return 1;
+}
+
+static void
+termp_it_post(DECL_ARGS)
+{
+ enum mdoc_list type;
+
+ if (n->type == ROFFT_BLOCK)
+ return;
+
+ type = n->parent->parent->parent->norm->Bl.type;
+
+ switch (type) {
+ case LIST_item:
+ case LIST_diag:
+ case LIST_inset:
+ if (n->type == ROFFT_BODY)
+ term_newln(p);
+ break;
+ case LIST_column:
+ if (n->type == ROFFT_BODY)
+ term_flushln(p);
+ break;
+ default:
+ term_newln(p);
+ break;
+ }
+
+ /*
+ * Now that our output is flushed, we can reset our tags. Since
+ * only `It' sets these flags, we're free to assume that nobody
+ * has munged them in the meanwhile.
+ */
+
+ p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP | TERMP_BRIND | TERMP_HANG);
+ p->trailspace = 0;
+}
+
+static int
+termp_nm_pre(DECL_ARGS)
+{
+ const char *cp;
+
+ if (n->type == ROFFT_BLOCK) {
+ p->flags |= TERMP_PREKEEP;
+ return 1;
+ }
+
+ if (n->type == ROFFT_BODY) {
+ if (n->child == NULL)
+ return 0;
+ p->flags |= TERMP_NOSPACE;
+ cp = NULL;
+ if (n->prev->child != NULL)
+ cp = n->prev->child->string;
+ if (cp == NULL)
+ cp = meta->name;
+ if (cp == NULL)
+ p->tcol->offset += term_len(p, 6);
+ else
+ p->tcol->offset += term_len(p, 1) +
+ term_strlen(p, cp);
+ return 1;
+ }
+
+ if (n->child == NULL)
+ return 0;
+
+ if (n->type == ROFFT_HEAD)
+ synopsis_pre(p, n->parent);
+
+ if (n->type == ROFFT_HEAD &&
+ n->next != NULL && n->next->child != NULL) {
+ p->flags |= TERMP_NOSPACE | TERMP_NOBREAK | TERMP_BRIND;
+ p->trailspace = 1;
+ p->tcol->rmargin = p->tcol->offset + term_len(p, 1);
+ if (n->child == NULL)
+ p->tcol->rmargin += term_strlen(p, meta->name);
+ else if (n->child->type == ROFFT_TEXT) {
+ p->tcol->rmargin += term_strlen(p, n->child->string);
+ if (n->child->next != NULL)
+ p->flags |= TERMP_HANG;
+ } else {
+ p->tcol->rmargin += term_len(p, 5);
+ p->flags |= TERMP_HANG;
+ }
+ }
+ return termp_bold_pre(p, pair, meta, n);
+}
+
+static void
+termp_nm_post(DECL_ARGS)
+{
+ switch (n->type) {
+ case ROFFT_BLOCK:
+ p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
+ break;
+ case ROFFT_HEAD:
+ if (n->next == NULL || n->next->child == NULL)
+ break;
+ term_flushln(p);
+ p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
+ p->trailspace = 0;
+ break;
+ case ROFFT_BODY:
+ if (n->child != NULL)
+ term_flushln(p);
+ break;
+ default:
+ break;
+ }
+}
+
+static int
+termp_fl_pre(DECL_ARGS)
+{
+ struct roff_node *nn;
+
+ term_fontpush(p, TERMFONT_BOLD);
+ term_word(p, "\\-");
+
+ if (n->child != NULL ||
+ ((nn = roff_node_next(n)) != NULL &&
+ nn->type != ROFFT_TEXT &&
+ (nn->flags & NODE_LINE) == 0))
+ p->flags |= TERMP_NOSPACE;
+
+ return 1;
+}
+
+static int
+termp__a_pre(DECL_ARGS)
+{
+ struct roff_node *nn;
+
+ if ((nn = roff_node_prev(n)) != NULL && nn->tok == MDOC__A &&
+ ((nn = roff_node_next(n)) == NULL || nn->tok != MDOC__A))
+ term_word(p, "and");
+
+ return 1;
+}
+
+static int
+termp_an_pre(DECL_ARGS)
+{
+
+ if (n->norm->An.auth == AUTH_split) {
+ p->flags &= ~TERMP_NOSPLIT;
+ p->flags |= TERMP_SPLIT;
+ return 0;
+ }
+ if (n->norm->An.auth == AUTH_nosplit) {
+ p->flags &= ~TERMP_SPLIT;
+ p->flags |= TERMP_NOSPLIT;
+ return 0;
+ }
+
+ if (p->flags & TERMP_SPLIT)
+ term_newln(p);
+
+ if (n->sec == SEC_AUTHORS && ! (p->flags & TERMP_NOSPLIT))
+ p->flags |= TERMP_SPLIT;
+
+ return 1;
+}
+
+static int
+termp_ns_pre(DECL_ARGS)
+{
+
+ if ( ! (NODE_LINE & n->flags))
+ p->flags |= TERMP_NOSPACE;
+ return 1;
+}
+
+static int
+termp_rs_pre(DECL_ARGS)
+{
+ if (SEC_SEE_ALSO != n->sec)
+ return 1;
+ if (n->type == ROFFT_BLOCK && roff_node_prev(n) != NULL)
+ term_vspace(p);
+ return 1;
+}
+
+static int
+termp_ex_pre(DECL_ARGS)
+{
+ term_newln(p);
+ return 1;
+}
+
+static int
+termp_nd_pre(DECL_ARGS)
+{
+ if (n->type == ROFFT_BODY)
+ term_word(p, "\\(en");
+ return 1;
+}
+
+static int
+termp_bl_pre(DECL_ARGS)
+{
+ switch (n->type) {
+ case ROFFT_BLOCK:
+ term_newln(p);
+ return 1;
+ case ROFFT_HEAD:
+ return 0;
+ default:
+ return 1;
+ }
+}
+
+static void
+termp_bl_post(DECL_ARGS)
+{
+ if (n->type != ROFFT_BLOCK)
+ return;
+ term_newln(p);
+ if (n->tok != MDOC_Bl || n->norm->Bl.type != LIST_column)
+ return;
+ term_tab_set(p, NULL);
+ term_tab_set(p, "T");
+ term_tab_set(p, ".5i");
+}
+
+static int
+termp_xr_pre(DECL_ARGS)
+{
+ if (NULL == (n = n->child))
+ return 0;
+
+ assert(n->type == ROFFT_TEXT);
+ term_word(p, n->string);
+
+ if (NULL == (n = n->next))
+ return 0;
+
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, "(");
+ p->flags |= TERMP_NOSPACE;
+
+ assert(n->type == ROFFT_TEXT);
+ term_word(p, n->string);
+
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ")");
+
+ return 0;
+}
+
+/*
+ * This decides how to assert whitespace before any of the SYNOPSIS set
+ * of macros (which, as in the case of Ft/Fo and Ft/Fn, may contain
+ * macro combos).
+ */
+static void
+synopsis_pre(struct termp *p, struct roff_node *n)
+{
+ struct roff_node *np;
+
+ if ((n->flags & NODE_SYNPRETTY) == 0 ||
+ (np = roff_node_prev(n)) == NULL)
+ return;
+
+ /*
+ * If we're the second in a pair of like elements, emit our
+ * newline and return. UNLESS we're `Fo', `Fn', `Fn', in which
+ * case we soldier on.
+ */
+ if (np->tok == n->tok &&
+ MDOC_Ft != n->tok &&
+ MDOC_Fo != n->tok &&
+ MDOC_Fn != n->tok) {
+ term_newln(p);
+ return;
+ }
+
+ /*
+ * If we're one of the SYNOPSIS set and non-like pair-wise after
+ * another (or Fn/Fo, which we've let slip through) then assert
+ * vertical space, else only newline and move on.
+ */
+ switch (np->tok) {
+ case MDOC_Fd:
+ case MDOC_Fn:
+ case MDOC_Fo:
+ case MDOC_In:
+ case MDOC_Vt:
+ term_vspace(p);
+ break;
+ case MDOC_Ft:
+ if (n->tok != MDOC_Fn && n->tok != MDOC_Fo) {
+ term_vspace(p);
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ term_newln(p);
+ break;
+ }
+}
+
+static int
+termp_vt_pre(DECL_ARGS)
+{
+ switch (n->type) {
+ case ROFFT_ELEM:
+ return termp_ft_pre(p, pair, meta, n);
+ case ROFFT_BLOCK:
+ synopsis_pre(p, n);
+ return 1;
+ case ROFFT_HEAD:
+ return 0;
+ default:
+ return termp_under_pre(p, pair, meta, n);
+ }
+}
+
+static int
+termp_bold_pre(DECL_ARGS)
+{
+ term_fontpush(p, TERMFONT_BOLD);
+ return 1;
+}
+
+static int
+termp_fd_pre(DECL_ARGS)
+{
+ synopsis_pre(p, n);
+ return termp_bold_pre(p, pair, meta, n);
+}
+
+static void
+termp_fd_post(DECL_ARGS)
+{
+ term_newln(p);
+}
+
+static int
+termp_sh_pre(DECL_ARGS)
+{
+ struct roff_node *np;
+
+ switch (n->type) {
+ case ROFFT_BLOCK:
+ /*
+ * Vertical space before sections, except
+ * when the previous section was empty.
+ */
+ if ((np = roff_node_prev(n)) == NULL ||
+ np->tok != MDOC_Sh ||
+ (np->body != NULL && np->body->child != NULL))
+ term_vspace(p);
+ break;
+ case ROFFT_HEAD:
+ return termp_bold_pre(p, pair, meta, n);
+ case ROFFT_BODY:
+ p->tcol->offset = term_len(p, p->defindent);
+ term_tab_set(p, NULL);
+ term_tab_set(p, "T");
+ term_tab_set(p, ".5i");
+ if (n->sec == SEC_AUTHORS)
+ p->flags &= ~(TERMP_SPLIT|TERMP_NOSPLIT);
+ break;
+ default:
+ break;
+ }
+ return 1;
+}
+
+static void
+termp_sh_post(DECL_ARGS)
+{
+ switch (n->type) {
+ case ROFFT_HEAD:
+ term_newln(p);
+ break;
+ case ROFFT_BODY:
+ term_newln(p);
+ p->tcol->offset = 0;
+ break;
+ default:
+ break;
+ }
+}
+
+static void
+termp_lb_post(DECL_ARGS)
+{
+ if (n->sec == SEC_LIBRARY && n->flags & NODE_LINE)
+ term_newln(p);
+}
+
+static int
+termp_d1_pre(DECL_ARGS)
+{
+ if (n->type != ROFFT_BLOCK)
+ return 1;
+ term_newln(p);
+ p->tcol->offset += term_len(p, p->defindent + 1);
+ term_tab_set(p, NULL);
+ term_tab_set(p, "T");
+ term_tab_set(p, ".5i");
+ return 1;
+}
+
+static int
+termp_ft_pre(DECL_ARGS)
+{
+ synopsis_pre(p, n);
+ return termp_under_pre(p, pair, meta, n);
+}
+
+static int
+termp_fn_pre(DECL_ARGS)
+{
+ size_t rmargin = 0;
+ int pretty;
+
+ synopsis_pre(p, n);
+ pretty = n->flags & NODE_SYNPRETTY;
+ if ((n = n->child) == NULL)
+ return 0;
+
+ if (pretty) {
+ rmargin = p->tcol->rmargin;
+ p->tcol->rmargin = p->tcol->offset + term_len(p, 4);
+ p->flags |= TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG;
+ }
+
+ assert(n->type == ROFFT_TEXT);
+ term_fontpush(p, TERMFONT_BOLD);
+ term_word(p, n->string);
+ term_fontpop(p);
+
+ if (pretty) {
+ term_flushln(p);
+ p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG);
+ p->flags |= TERMP_NOPAD;
+ p->tcol->offset = p->tcol->rmargin;
+ p->tcol->rmargin = rmargin;
+ }
+
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, "(");
+ p->flags |= TERMP_NOSPACE;
+
+ for (n = n->next; n; n = n->next) {
+ assert(n->type == ROFFT_TEXT);
+ term_fontpush(p, TERMFONT_UNDER);
+ if (pretty)
+ p->flags |= TERMP_NBRWORD;
+ term_word(p, n->string);
+ term_fontpop(p);
+
+ if (n->next) {
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ",");
+ }
+ }
+
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ")");
+
+ if (pretty) {
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ";");
+ term_flushln(p);
+ }
+ return 0;
+}
+
+static int
+termp_fa_pre(DECL_ARGS)
+{
+ const struct roff_node *nn;
+
+ if (n->parent->tok != MDOC_Fo)
+ return termp_under_pre(p, pair, meta, n);
+
+ for (nn = n->child; nn != NULL; nn = nn->next) {
+ term_fontpush(p, TERMFONT_UNDER);
+ p->flags |= TERMP_NBRWORD;
+ term_word(p, nn->string);
+ term_fontpop(p);
+ if (nn->next != NULL) {
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ",");
+ }
+ }
+ if (n->child != NULL &&
+ (nn = roff_node_next(n)) != NULL &&
+ nn->tok == MDOC_Fa) {
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ",");
+ }
+ return 0;
+}
+
+static int
+termp_bd_pre(DECL_ARGS)
+{
+ int offset;
+
+ if (n->type == ROFFT_BLOCK) {
+ print_bvspace(p, n, n);
+ return 1;
+ } else if (n->type == ROFFT_HEAD)
+ return 0;
+
+ /* Handle the -offset argument. */
+
+ if (n->norm->Bd.offs == NULL ||
+ ! strcmp(n->norm->Bd.offs, "left"))
+ /* nothing */;
+ else if ( ! strcmp(n->norm->Bd.offs, "indent"))
+ p->tcol->offset += term_len(p, p->defindent + 1);
+ else if ( ! strcmp(n->norm->Bd.offs, "indent-two"))
+ p->tcol->offset += term_len(p, (p->defindent + 1) * 2);
+ else {
+ offset = a2width(p, n->norm->Bd.offs);
+ if (offset < 0 && (size_t)(-offset) > p->tcol->offset)
+ p->tcol->offset = 0;
+ else if (offset < SHRT_MAX)
+ p->tcol->offset += offset;
+ }
+
+ switch (n->norm->Bd.type) {
+ case DISP_literal:
+ term_tab_set(p, NULL);
+ term_tab_set(p, "T");
+ term_tab_set(p, "8n");
+ break;
+ case DISP_centered:
+ p->flags |= TERMP_CENTER;
+ break;
+ default:
+ break;
+ }
+ return 1;
+}
+
+static void
+termp_bd_post(DECL_ARGS)
+{
+ if (n->type != ROFFT_BODY)
+ return;
+ if (n->norm->Bd.type == DISP_unfilled ||
+ n->norm->Bd.type == DISP_literal)
+ p->flags |= TERMP_BRNEVER;
+ p->flags |= TERMP_NOSPACE;
+ term_newln(p);
+ p->flags &= ~TERMP_BRNEVER;
+ if (n->norm->Bd.type == DISP_centered)
+ p->flags &= ~TERMP_CENTER;
+}
+
+static int
+termp_xx_pre(DECL_ARGS)
+{
+ if ((n->aux = p->flags & TERMP_PREKEEP) == 0)
+ p->flags |= TERMP_PREKEEP;
+ return 1;
+}
+
+static void
+termp_xx_post(DECL_ARGS)
+{
+ if (n->aux == 0)
+ p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
+}
+
+static void
+termp_pf_post(DECL_ARGS)
+{
+ if (n->next != NULL && (n->next->flags & NODE_LINE) == 0)
+ p->flags |= TERMP_NOSPACE;
+}
+
+static int
+termp_ss_pre(DECL_ARGS)
+{
+ switch (n->type) {
+ case ROFFT_BLOCK:
+ if (roff_node_prev(n) == NULL)
+ term_newln(p);
+ else
+ term_vspace(p);
+ break;
+ case ROFFT_HEAD:
+ p->tcol->offset = term_len(p, (p->defindent+1)/2);
+ return termp_bold_pre(p, pair, meta, n);
+ case ROFFT_BODY:
+ p->tcol->offset = term_len(p, p->defindent);
+ term_tab_set(p, NULL);
+ term_tab_set(p, "T");
+ term_tab_set(p, ".5i");
+ break;
+ default:
+ break;
+ }
+ return 1;
+}
+
+static void
+termp_ss_post(DECL_ARGS)
+{
+ if (n->type == ROFFT_HEAD || n->type == ROFFT_BODY)
+ term_newln(p);
+}
+
+static int
+termp_in_pre(DECL_ARGS)
+{
+ synopsis_pre(p, n);
+ if (n->flags & NODE_SYNPRETTY && n->flags & NODE_LINE) {
+ term_fontpush(p, TERMFONT_BOLD);
+ term_word(p, "#include");
+ term_word(p, "<");
+ } else {
+ term_word(p, "<");
+ term_fontpush(p, TERMFONT_UNDER);
+ }
+ p->flags |= TERMP_NOSPACE;
+ return 1;
+}
+
+static void
+termp_in_post(DECL_ARGS)
+{
+ if (n->flags & NODE_SYNPRETTY)
+ term_fontpush(p, TERMFONT_BOLD);
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ">");
+ if (n->flags & NODE_SYNPRETTY)
+ term_fontpop(p);
+}
+
+static int
+termp_pp_pre(DECL_ARGS)
+{
+ term_vspace(p);
+ if (n->flags & NODE_ID)
+ term_tag_write(n, p->line);
+ return 0;
+}
+
+static int
+termp_skip_pre(DECL_ARGS)
+{
+ return 0;
+}
+
+static int
+termp_quote_pre(DECL_ARGS)
+{
+ if (n->type != ROFFT_BODY && n->type != ROFFT_ELEM)
+ return 1;
+
+ switch (n->tok) {
+ case MDOC_Ao:
+ case MDOC_Aq:
+ term_word(p, n->child != NULL && n->child->next == NULL &&
+ n->child->tok == MDOC_Mt ? "<" : "\\(la");
+ break;
+ case MDOC_Bro:
+ case MDOC_Brq:
+ term_word(p, "{");
+ break;
+ case MDOC_Oo:
+ case MDOC_Op:
+ case MDOC_Bo:
+ case MDOC_Bq:
+ term_word(p, "[");
+ break;
+ case MDOC__T:
+ /* FALLTHROUGH */
+ case MDOC_Do:
+ case MDOC_Dq:
+ term_word(p, "\\(lq");
+ break;
+ case MDOC_En:
+ if (NULL == n->norm->Es ||
+ NULL == n->norm->Es->child)
+ return 1;
+ term_word(p, n->norm->Es->child->string);
+ break;
+ case MDOC_Po:
+ case MDOC_Pq:
+ term_word(p, "(");
+ break;
+ case MDOC_Qo:
+ case MDOC_Qq:
+ term_word(p, "\"");
+ break;
+ case MDOC_Ql:
+ case MDOC_So:
+ case MDOC_Sq:
+ term_word(p, "\\(oq");
+ break;
+ default:
+ abort();
+ }
+
+ p->flags |= TERMP_NOSPACE;
+ return 1;
+}
+
+static void
+termp_quote_post(DECL_ARGS)
+{
+
+ if (n->type != ROFFT_BODY && n->type != ROFFT_ELEM)
+ return;
+
+ p->flags |= TERMP_NOSPACE;
+
+ switch (n->tok) {
+ case MDOC_Ao:
+ case MDOC_Aq:
+ term_word(p, n->child != NULL && n->child->next == NULL &&
+ n->child->tok == MDOC_Mt ? ">" : "\\(ra");
+ break;
+ case MDOC_Bro:
+ case MDOC_Brq:
+ term_word(p, "}");
+ break;
+ case MDOC_Oo:
+ case MDOC_Op:
+ case MDOC_Bo:
+ case MDOC_Bq:
+ term_word(p, "]");
+ break;
+ case MDOC__T:
+ /* FALLTHROUGH */
+ case MDOC_Do:
+ case MDOC_Dq:
+ term_word(p, "\\(rq");
+ break;
+ case MDOC_En:
+ if (n->norm->Es == NULL ||
+ n->norm->Es->child == NULL ||
+ n->norm->Es->child->next == NULL)
+ p->flags &= ~TERMP_NOSPACE;
+ else
+ term_word(p, n->norm->Es->child->next->string);
+ break;
+ case MDOC_Po:
+ case MDOC_Pq:
+ term_word(p, ")");
+ break;
+ case MDOC_Qo:
+ case MDOC_Qq:
+ term_word(p, "\"");
+ break;
+ case MDOC_Ql:
+ case MDOC_So:
+ case MDOC_Sq:
+ term_word(p, "\\(cq");
+ break;
+ default:
+ abort();
+ }
+}
+
+static int
+termp_eo_pre(DECL_ARGS)
+{
+
+ if (n->type != ROFFT_BODY)
+ return 1;
+
+ if (n->end == ENDBODY_NOT &&
+ n->parent->head->child == NULL &&
+ n->child != NULL &&
+ n->child->end != ENDBODY_NOT)
+ term_word(p, "\\&");
+ else if (n->end != ENDBODY_NOT ? n->child != NULL :
+ n->parent->head->child != NULL && (n->child != NULL ||
+ (n->parent->tail != NULL && n->parent->tail->child != NULL)))
+ p->flags |= TERMP_NOSPACE;
+
+ return 1;
+}
+
+static void
+termp_eo_post(DECL_ARGS)
+{
+ int body, tail;
+
+ if (n->type != ROFFT_BODY)
+ return;
+
+ if (n->end != ENDBODY_NOT) {
+ p->flags &= ~TERMP_NOSPACE;
+ return;
+ }
+
+ body = n->child != NULL || n->parent->head->child != NULL;
+ tail = n->parent->tail != NULL && n->parent->tail->child != NULL;
+
+ if (body && tail)
+ p->flags |= TERMP_NOSPACE;
+ else if ( ! (body || tail))
+ term_word(p, "\\&");
+ else if ( ! tail)
+ p->flags &= ~TERMP_NOSPACE;
+}
+
+static int
+termp_fo_pre(DECL_ARGS)
+{
+ size_t rmargin;
+
+ switch (n->type) {
+ case ROFFT_BLOCK:
+ synopsis_pre(p, n);
+ return 1;
+ case ROFFT_BODY:
+ rmargin = p->tcol->rmargin;
+ if (n->flags & NODE_SYNPRETTY) {
+ p->tcol->rmargin = p->tcol->offset + term_len(p, 4);
+ p->flags |= TERMP_NOBREAK | TERMP_BRIND |
+ TERMP_HANG;
+ }
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, "(");
+ p->flags |= TERMP_NOSPACE;
+ if (n->flags & NODE_SYNPRETTY) {
+ term_flushln(p);
+ p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND |
+ TERMP_HANG);
+ p->flags |= TERMP_NOPAD;
+ p->tcol->offset = p->tcol->rmargin;
+ p->tcol->rmargin = rmargin;
+ }
+ return 1;
+ default:
+ return termp_bold_pre(p, pair, meta, n);
+ }
+}
+
+static void
+termp_fo_post(DECL_ARGS)
+{
+ if (n->type != ROFFT_BODY)
+ return;
+
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ")");
+
+ if (n->flags & NODE_SYNPRETTY) {
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ";");
+ term_flushln(p);
+ }
+}
+
+static int
+termp_bf_pre(DECL_ARGS)
+{
+ switch (n->type) {
+ case ROFFT_HEAD:
+ return 0;
+ case ROFFT_BODY:
+ break;
+ default:
+ return 1;
+ }
+ switch (n->norm->Bf.font) {
+ case FONT_Em:
+ return termp_under_pre(p, pair, meta, n);
+ case FONT_Sy:
+ return termp_bold_pre(p, pair, meta, n);
+ default:
+ return termp_li_pre(p, pair, meta, n);
+ }
+}
+
+static int
+termp_sm_pre(DECL_ARGS)
+{
+ if (n->child == NULL)
+ p->flags ^= TERMP_NONOSPACE;
+ else if (strcmp(n->child->string, "on") == 0)
+ p->flags &= ~TERMP_NONOSPACE;
+ else
+ p->flags |= TERMP_NONOSPACE;
+
+ if (p->col && ! (TERMP_NONOSPACE & p->flags))
+ p->flags &= ~TERMP_NOSPACE;
+
+ return 0;
+}
+
+static int
+termp_ap_pre(DECL_ARGS)
+{
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, "'");
+ p->flags |= TERMP_NOSPACE;
+ return 1;
+}
+
+static void
+termp____post(DECL_ARGS)
+{
+ struct roff_node *nn;
+
+ /*
+ * Handle lists of authors. In general, print each followed by
+ * a comma. Don't print the comma if there are only two
+ * authors.
+ */
+ if (n->tok == MDOC__A &&
+ (nn = roff_node_next(n)) != NULL && nn->tok == MDOC__A &&
+ ((nn = roff_node_next(nn)) == NULL || nn->tok != MDOC__A) &&
+ ((nn = roff_node_prev(n)) == NULL || nn->tok != MDOC__A))
+ return;
+
+ /* TODO: %U. */
+
+ if (n->parent == NULL || n->parent->tok != MDOC_Rs)
+ return;
+
+ p->flags |= TERMP_NOSPACE;
+ if (roff_node_next(n) == NULL) {
+ term_word(p, ".");
+ p->flags |= TERMP_SENTENCE;
+ } else
+ term_word(p, ",");
+}
+
+static int
+termp_li_pre(DECL_ARGS)
+{
+ term_fontpush(p, TERMFONT_NONE);
+ return 1;
+}
+
+static int
+termp_lk_pre(DECL_ARGS)
+{
+ const struct roff_node *link, *descr, *punct;
+
+ if ((link = n->child) == NULL)
+ return 0;
+
+ /* Find beginning of trailing punctuation. */
+ punct = n->last;
+ while (punct != link && punct->flags & NODE_DELIMC)
+ punct = punct->prev;
+ punct = punct->next;
+
+ /* Link text. */
+ if ((descr = link->next) != NULL && descr != punct) {
+ term_fontpush(p, TERMFONT_UNDER);
+ while (descr != punct) {
+ if (descr->flags & (NODE_DELIMC | NODE_DELIMO))
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, descr->string);
+ descr = descr->next;
+ }
+ term_fontpop(p);
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, ":");
+ }
+
+ /* Link target. */
+ term_fontpush(p, TERMFONT_BOLD);
+ term_word(p, link->string);
+ term_fontpop(p);
+
+ /* Trailing punctuation. */
+ while (punct != NULL) {
+ p->flags |= TERMP_NOSPACE;
+ term_word(p, punct->string);
+ punct = punct->next;
+ }
+ return 0;
+}
+
+static int
+termp_bk_pre(DECL_ARGS)
+{
+ switch (n->type) {
+ case ROFFT_BLOCK:
+ break;
+ case ROFFT_HEAD:
+ return 0;
+ case ROFFT_BODY:
+ if (n->parent->args != NULL || n->prev->child == NULL)
+ p->flags |= TERMP_PREKEEP;
+ break;
+ default:
+ abort();
+ }
+ return 1;
+}
+
+static void
+termp_bk_post(DECL_ARGS)
+{
+ if (n->type == ROFFT_BODY)
+ p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP);
+}
+
+/*
+ * If we are in an `Rs' and there is a journal present,
+ * then quote us instead of underlining us (for disambiguation).
+ */
+static void
+termp__t_post(DECL_ARGS)
+{
+ if (n->parent != NULL && n->parent->tok == MDOC_Rs &&
+ n->parent->norm->Rs.quote_T)
+ termp_quote_post(p, pair, meta, n);
+ termp____post(p, pair, meta, n);
+}
+
+static int
+termp__t_pre(DECL_ARGS)
+{
+ if (n->parent != NULL && n->parent->tok == MDOC_Rs &&
+ n->parent->norm->Rs.quote_T)
+ return termp_quote_pre(p, pair, meta, n);
+ else
+ return termp_under_pre(p, pair, meta, n);
+}
+
+static int
+termp_under_pre(DECL_ARGS)
+{
+ term_fontpush(p, TERMFONT_UNDER);
+ return 1;
+}
+
+static int
+termp_abort_pre(DECL_ARGS)
+{
+ abort();
+}