/* $OpenBSD: mdoc_term.c,v 1.256 2017/05/09 14:09:37 schwarze Exp $ */ /* * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons * Copyright (c) 2010, 2012-2017 Ingo Schwarze * Copyright (c) 2013 Franco Fichtner * * 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. */ #include #include #include #include #include #include #include #include #include "mandoc_aux.h" #include "mandoc.h" #include "roff.h" #include "mdoc.h" #include "out.h" #include "term.h" #include "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 termact { int (*pre)(DECL_ARGS); void (*post)(DECL_ARGS); }; static int a2width(const struct termp *, const char *); static void print_bvspace(struct termp *, const struct roff_node *, const 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 *, const 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_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_cd_pre(DECL_ARGS); static int termp_d1_pre(DECL_ARGS); static int termp_eo_pre(DECL_ARGS); static int termp_em_pre(DECL_ARGS); static int termp_er_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_sy_pre(DECL_ARGS); static int termp_tag_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 termact __termacts[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_cd_pre, NULL }, /* Cd */ { termp_bold_pre, NULL }, /* Cm */ { termp_li_pre, NULL }, /* Dv */ { termp_er_pre, NULL }, /* Er */ { termp_tag_pre, 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_ft_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_em_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_sy_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_pp_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 */ }; static const struct termact *const termacts = __termacts - MDOC_Dd; static int fn_prio; void terminal_mdoc(void *arg, const struct roff_man *mdoc) { struct roff_node *n; struct termp *p; size_t save_defindent; p = (struct termp *)arg; p->overstep = 0; p->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) { while (n != NULL) { if (n->tok == MDOC_Sh && n->sec == SEC_SYNOPSIS) { if (n->child->next->child != NULL) print_mdoc_nodelist(p, NULL, &mdoc->meta, n->child->next->child); term_newln(p); break; } n = n->next; } } else { save_defindent = p->defindent; if (p->defindent == 0) p->defindent = 5; term_begin(p, print_mdoc_head, print_mdoc_foot, &mdoc->meta); while (n != NULL && n->flags & NODE_NOPRT) n = n->next; if (n != NULL) { if (n->tok != MDOC_Sh) term_vspace(p); print_mdoc_nodelist(p, NULL, &mdoc->meta, 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) { int chld; struct termpair npair; size_t offset, rmargin; if (n->flags & NODE_NOPRT) return; chld = 1; offset = p->offset; rmargin = p->rmargin; n->flags &= ~NODE_ENDED; n->prev_font = p->fonti; memset(&npair, 0, sizeof(struct termpair)); npair.ppair = pair; /* * 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. */ switch (n->type) { case ROFFT_TEXT: if (*n->string == ' ' && n->flags & NODE_LINE && (p->flags & TERMP_NONEWLINE) == 0) term_newln(p); 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); if (termacts[n->tok].pre != NULL && (n->end == ENDBODY_NOT || n->child != NULL)) chld = (*termacts[n->tok].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 (termacts[n->tok].post == NULL || n->flags & NODE_ENDED) break; (void)(*termacts[n->tok].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; p->offset = offset; p->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->offset = 0; sz = term_strlen(p, meta->date); p->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->offset = p->rmargin; sz = term_strlen(p, meta->os); p->rmargin = p->maxrmargin > sz ? p->maxrmargin - sz : 0; p->flags |= TERMP_NOSPACE; term_word(p, meta->date); term_flushln(p); p->offset = p->rmargin; p->rmargin = p->maxrmargin; p->trailspace = 0; p->flags &= ~TERMP_NOBREAK; p->flags |= TERMP_NOSPACE; term_word(p, meta->os); term_flushln(p); p->offset = 0; p->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->offset = 0; p->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->offset = p->rmargin; p->rmargin = p->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->rmargin + titlen <= p->maxrmargin) { p->flags |= TERMP_NOSPACE; p->offset = p->rmargin; p->rmargin = p->maxrmargin; term_word(p, title); term_flushln(p); } p->flags &= ~TERMP_NOSPACE; p->offset = 0; p->rmargin = p->maxrmargin; free(title); free(volume); } static int a2width(const struct termp *p, const char *v) { struct roffsu su; if (a2roffsu(v, &su, SCALE_MAX) < 2) { SCALE_HS_INIT(&su, term_strlen(p, v)); su.scale /= term_strlen(p, "0"); } return term_hspan(p, &su) / 24; } /* * 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, const struct roff_node *bl, const struct roff_node *n) { const struct roff_node *nn; assert(n); term_newln(p); if (MDOC_Bd == bl->tok && bl->norm->Bd.comp) return; if (MDOC_Bl == bl->tok && bl->norm->Bl.comp) return; /* Do not vspace directly after Ss/Sh. */ nn = n; while (nn->prev != NULL && nn->prev->flags & NODE_NOPRT) nn = nn->prev; while (nn->prev == 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; } /* A `-column' does not assert vspace within the list. */ if (MDOC_Bl == bl->tok && LIST_column == bl->norm->Bl.type) if (n->prev && MDOC_It == n->prev->tok) return; /* A `-diag' without body does not vspace. */ if (MDOC_Bl == bl->tok && LIST_diag == bl->norm->Bl.type) if (n->prev && MDOC_It == n->prev->tok) { assert(n->prev->body); if (NULL == n->prev->body->child) return; } 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); 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->offset) offset = -p->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_hspan(p, &su) / 24 + 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_hspan(p, &su) / 24 + 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->offset) width = -p->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: /* * Weird special case. * Some very narrow lists actually hang. */ if (width <= (int)term_len(p, 2)) p->flags |= TERMP_HANG; if (n->type != ROFFT_HEAD) break; p->flags |= TERMP_NOBREAK; p->trailspace = 1; break; case LIST_hang: if (n->type != ROFFT_HEAD) break; /* * This is ugly. If `-hang' is specified and the body * is a `Bl' or `Bd', then we want basically to nullify * the "overstep" effect in term_flushln() and treat * this as a `-ohang' list instead. */ if (NULL != n->next && NULL != n->next->child && (MDOC_Bl == n->next->child->tok || MDOC_Bd == n->next->child->tok)) 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_DANGLE; 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->offset += offset; switch (type) { case LIST_hang: /* * Same stipulation as above, regarding `-hang'. We * don't want to recalculate rmargin and offsets when * using `Bd' or `Bl' within `-hang' overstep lists. */ if (n->type == ROFFT_HEAD && NULL != n->next && NULL != n->next->child && (MDOC_Bl == n->next->child->tok || MDOC_Bd == n->next->child->tok)) break; /* FALLTHROUGH */ case LIST_bullet: case LIST_dash: case LIST_enum: case LIST_hyphen: case LIST_tag: if (n->type == ROFFT_HEAD) p->rmargin = p->offset + width; else p->offset += width; break; case LIST_column: assert(width); p->rmargin = p->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 (NULL == n->next && p->rmargin < p->maxrmargin) p->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; 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_DANGLE | 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 (NULL == n->child) 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->offset += term_len(p, 6); else p->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 && NULL != n->next && NULL != n->next->child) { p->flags |= TERMP_NOSPACE | TERMP_NOBREAK | TERMP_BRIND; p->trailspace = 1; p->rmargin = p->offset + term_len(p, 1); if (NULL == n->child) { p->rmargin += term_strlen(p, meta->name); } else if (n->child->type == ROFFT_TEXT) { p->rmargin += term_strlen(p, n->child->string); if (n->child->next) p->flags |= TERMP_HANG; } else { p->rmargin += term_len(p, 5); p->flags |= TERMP_HANG; } } term_fontpush(p, TERMFONT_BOLD); return 1; } static void termp_nm_post(DECL_ARGS) { if (n->type == ROFFT_BLOCK) { p->flags &= ~(TERMP_KEEP | TERMP_PREKEEP); } else if (n->type == ROFFT_HEAD && NULL != n->next && NULL != n->next->child) { term_flushln(p); p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG); p->trailspace = 0; } else if (n->type == ROFFT_BODY && n->child != NULL) term_flushln(p); } static int termp_fl_pre(DECL_ARGS) { termp_tag_pre(p, pair, meta, n); term_fontpush(p, TERMFONT_BOLD); term_word(p, "\\-"); if (!(n->child == NULL && (n->next == NULL || n->next->type == ROFFT_TEXT || n->next->flags & NODE_LINE))) p->flags |= TERMP_NOSPACE; return 1; } static int termp__a_pre(DECL_ARGS) { if (n->prev && MDOC__A == n->prev->tok) if (NULL == n->next || MDOC__A != n->next->tok) 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 && n->prev != 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) { return n->type != ROFFT_HEAD; } 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, const struct roff_node *n) { /* * Obviously, if we're not in a SYNOPSIS or no prior macros * exist, do nothing. */ if (NULL == n->prev || ! (NODE_SYNPRETTY & n->flags)) 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 (n->prev->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 (n->prev->tok) { case MDOC_Fd: case MDOC_Fn: case MDOC_Fo: case MDOC_In: case MDOC_Vt: term_vspace(p); break; case MDOC_Ft: if (MDOC_Fn != n->tok && MDOC_Fo != n->tok) { term_vspace(p); break; } /* FALLTHROUGH */ default: term_newln(p); break; } } static int termp_vt_pre(DECL_ARGS) { if (n->type == ROFFT_ELEM) { synopsis_pre(p, n); return termp_under_pre(p, pair, meta, n); } else if (n->type == ROFFT_BLOCK) { synopsis_pre(p, n); return 1; } else if (n->type == ROFFT_HEAD) return 0; return termp_under_pre(p, pair, meta, n); } static int termp_bold_pre(DECL_ARGS) { termp_tag_pre(p, pair, meta, n); 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) { switch (n->type) { case ROFFT_BLOCK: /* * Vertical space before sections, except * when the previous section was empty. */ if (n->prev == NULL || n->prev->tok != MDOC_Sh || (n->prev->body != NULL && n->prev->body->child != NULL)) term_vspace(p); break; case ROFFT_HEAD: term_fontpush(p, TERMFONT_BOLD); break; case ROFFT_BODY: p->offset = term_len(p, p->defindent); term_tab_set(p, NULL); term_tab_set(p, "T"); term_tab_set(p, ".5i"); switch (n->sec) { case SEC_DESCRIPTION: fn_prio = 0; break; case SEC_AUTHORS: p->flags &= ~(TERMP_SPLIT|TERMP_NOSPLIT); break; default: break; } 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->offset = 0; break; default: break; } } static void termp_lb_post(DECL_ARGS) { if (SEC_LIBRARY == n->sec && NODE_LINE & n->flags) term_newln(p); } static int termp_d1_pre(DECL_ARGS) { if (n->type != ROFFT_BLOCK) return 1; term_newln(p); p->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) { /* NB: NODE_LINE does not effect this! */ synopsis_pre(p, n); term_fontpush(p, TERMFONT_UNDER); return 1; } static int termp_fn_pre(DECL_ARGS) { size_t rmargin = 0; int pretty; pretty = NODE_SYNPRETTY & n->flags; synopsis_pre(p, n); if (NULL == (n = n->child)) return 0; if (pretty) { rmargin = p->rmargin; p->rmargin = p->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 (n->sec == SEC_DESCRIPTION || n->sec == SEC_CUSTOM) tag_put(n->string, ++fn_prio, p->line); if (pretty) { term_flushln(p); p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG); p->offset = p->rmargin; p->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) { term_fontpush(p, TERMFONT_UNDER); return 1; } for (nn = n->child; nn; nn = nn->next) { term_fontpush(p, TERMFONT_UNDER); p->flags |= TERMP_NBRWORD; term_word(p, nn->string); term_fontpop(p); if (nn->next || (n->next && n->next->tok == MDOC_Fa)) { p->flags |= TERMP_NOSPACE; term_word(p, ","); } } return 0; } static int termp_bd_pre(DECL_ARGS) { size_t lm, len, rm, rmax; struct roff_node *nn; 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->offset += term_len(p, p->defindent + 1); else if ( ! strcmp(n->norm->Bd.offs, "indent-two")) p->offset += term_len(p, (p->defindent + 1) * 2); else { offset = a2width(p, n->norm->Bd.offs); if (offset < 0 && (size_t)(-offset) > p->offset) p->offset = 0; else if (offset < SHRT_MAX) p->offset += offset; } /* * If -ragged or -filled are specified, the block does nothing * but change the indentation. If -unfilled or -literal are * specified, text is printed exactly as entered in the display: * for macro lines, a newline is appended to the line. Blank * lines are allowed. */ if (DISP_literal != n->norm->Bd.type && DISP_unfilled != n->norm->Bd.type && DISP_centered != n->norm->Bd.type) return 1; if (n->norm->Bd.type == DISP_literal) { term_tab_set(p, NULL); term_tab_set(p, "T"); term_tab_set(p, "8n"); } lm = p->offset; rm = p->rmargin; rmax = p->maxrmargin; p->rmargin = p->maxrmargin = TERM_MAXMARGIN; for (nn = n->child; nn; nn = nn->next) { if (DISP_centered == n->norm->Bd.type) { if (nn->type == ROFFT_TEXT) { len = term_strlen(p, nn->string); p->offset = len >= rm ? 0 : lm + len >= rm ? rm - len : (lm + rm - len) / 2; } else p->offset = lm; } print_mdoc_node(p, pair, meta, nn); /* * If the printed node flushes its own line, then we * needn't do it here as well. This is hacky, but the * notion of selective eoln whitespace is pretty dumb * anyway, so don't sweat it. */ if (nn->tok < ROFF_MAX) continue; switch (nn->tok) { case MDOC_Sm: case MDOC_Bl: case MDOC_D1: case MDOC_Dl: case MDOC_Lp: case MDOC_Pp: continue; default: break; } if (p->flags & TERMP_NONEWLINE || (nn->next && ! (nn->next->flags & NODE_LINE))) continue; term_flushln(p); p->flags |= TERMP_NOSPACE; } p->rmargin = rm; p->maxrmargin = rmax; return 0; } static void termp_bd_post(DECL_ARGS) { size_t rm, rmax; if (n->type != ROFFT_BODY) return; rm = p->rmargin; rmax = p->maxrmargin; if (DISP_literal == n->norm->Bd.type || DISP_unfilled == n->norm->Bd.type) p->rmargin = p->maxrmargin = TERM_MAXMARGIN; p->flags |= TERMP_NOSPACE; term_newln(p); p->rmargin = rm; p->maxrmargin = rmax; } 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)) p->flags |= TERMP_NOSPACE; } static int termp_ss_pre(DECL_ARGS) { struct roff_node *nn; switch (n->type) { case ROFFT_BLOCK: term_newln(p); for (nn = n->prev; nn != NULL; nn = nn->prev) if ((nn->flags & NODE_NOPRT) == 0) break; if (nn != NULL) term_vspace(p); break; case ROFFT_HEAD: term_fontpush(p, TERMFONT_BOLD); p->offset = term_len(p, (p->defindent+1)/2); break; case ROFFT_BODY: p->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_cd_pre(DECL_ARGS) { synopsis_pre(p, n); term_fontpush(p, TERMFONT_BOLD); return 1; } static int termp_in_pre(DECL_ARGS) { synopsis_pre(p, n); if (NODE_SYNPRETTY & n->flags && NODE_LINE & n->flags) { 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 (NODE_SYNPRETTY & n->flags) term_fontpush(p, TERMFONT_BOLD); p->flags |= TERMP_NOSPACE; term_word(p, ">"); if (NODE_SYNPRETTY & n->flags) term_fontpop(p); } static int termp_pp_pre(DECL_ARGS) { fn_prio = 0; term_vspace(p); 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 = 0; int pretty; pretty = NODE_SYNPRETTY & n->flags; if (n->type == ROFFT_BLOCK) { synopsis_pre(p, n); return 1; } else if (n->type == ROFFT_BODY) { if (pretty) { rmargin = p->rmargin; p->rmargin = p->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 (pretty) { term_flushln(p); p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND | TERMP_HANG); p->offset = p->rmargin; p->rmargin = rmargin; } return 1; } if (NULL == n->child) return 0; /* XXX: we drop non-initial arguments as per groff. */ assert(n->child->string); term_fontpush(p, TERMFONT_BOLD); term_word(p, n->child->string); return 0; } static void termp_fo_post(DECL_ARGS) { if (n->type != ROFFT_BODY) return; p->flags |= TERMP_NOSPACE; term_word(p, ")"); if (NODE_SYNPRETTY & n->flags) { p->flags |= TERMP_NOSPACE; term_word(p, ";"); term_flushln(p); } } static int termp_bf_pre(DECL_ARGS) { if (n->type == ROFFT_HEAD) return 0; else if (n->type != ROFFT_BODY) return 1; if (FONT_Em == n->norm->Bf.font) term_fontpush(p, TERMFONT_UNDER); else if (FONT_Sy == n->norm->Bf.font) term_fontpush(p, TERMFONT_BOLD); else term_fontpush(p, TERMFONT_NONE); return 1; } static int termp_sm_pre(DECL_ARGS) { if (NULL == n->child) p->flags ^= TERMP_NONOSPACE; else if (0 == strcmp("on", n->child->string)) 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) { /* * Handle lists of authors. In general, print each followed by * a comma. Don't print the comma if there are only two * authors. */ if (MDOC__A == n->tok && n->next && MDOC__A == n->next->tok) if (NULL == n->next->next || MDOC__A != n->next->next->tok) if (NULL == n->prev || MDOC__A != n->prev->tok) return; /* TODO: %U. */ if (NULL == n->parent || MDOC_Rs != n->parent->tok) return; p->flags |= TERMP_NOSPACE; if (NULL == n->next) { term_word(p, "."); p->flags |= TERMP_SENTENCE; } else term_word(p, ","); } static int termp_li_pre(DECL_ARGS) { termp_tag_pre(p, pair, meta, n); term_fontpush(p, TERMFONT_NONE); return 1; } static int termp_lk_pre(DECL_ARGS) { const struct roff_node *link, *descr; int display; if ((link = n->child) == NULL) return 0; /* Link text. */ if ((descr = link->next) != NULL && !(descr->flags & NODE_DELIMC)) { term_fontpush(p, TERMFONT_UNDER); while (descr != NULL && !(descr->flags & NODE_DELIMC)) { term_word(p, descr->string); descr = descr->next; } term_fontpop(p); p->flags |= TERMP_NOSPACE; term_word(p, ":"); } /* Link target. */ display = term_strlen(p, link->string) >= 26; if (display) { term_newln(p); p->offset += term_len(p, p->defindent + 1); } term_fontpush(p, TERMFONT_BOLD); term_word(p, link->string); term_fontpop(p); /* Trailing punctuation. */ while (descr != NULL) { p->flags |= TERMP_NOSPACE; term_word(p, descr->string); descr = descr->next; } if (display) term_newln(p); 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); } static void termp__t_post(DECL_ARGS) { /* * If we're in an `Rs' and there's a journal present, then quote * us instead of underlining us (for disambiguation). */ if (n->parent && MDOC_Rs == n->parent->tok && 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 we're in an `Rs' and there's a journal present, then quote * us instead of underlining us (for disambiguation). */ if (n->parent && MDOC_Rs == n->parent->tok && n->parent->norm->Rs.quote_T) return termp_quote_pre(p, pair, meta, n); term_fontpush(p, TERMFONT_UNDER); return 1; } static int termp_under_pre(DECL_ARGS) { term_fontpush(p, TERMFONT_UNDER); return 1; } static int termp_em_pre(DECL_ARGS) { if (n->child != NULL && n->child->type == ROFFT_TEXT) tag_put(n->child->string, 0, p->line); term_fontpush(p, TERMFONT_UNDER); return 1; } static int termp_sy_pre(DECL_ARGS) { if (n->child != NULL && n->child->type == ROFFT_TEXT) tag_put(n->child->string, 0, p->line); term_fontpush(p, TERMFONT_BOLD); return 1; } static int termp_er_pre(DECL_ARGS) { if (n->sec == SEC_ERRORS && (n->parent->tok == MDOC_It || (n->parent->tok == MDOC_Bq && n->parent->parent->parent->tok == MDOC_It))) tag_put(n->child->string, 1, p->line); return 1; } static int termp_tag_pre(DECL_ARGS) { if (n->child != NULL && n->child->type == ROFFT_TEXT && (n->prev == NULL || (n->prev->type == ROFFT_TEXT && strcmp(n->prev->string, "|") == 0)) && (n->parent->tok == MDOC_It || (n->parent->tok == MDOC_Xo && n->parent->parent->prev == NULL && n->parent->parent->parent->tok == MDOC_It))) tag_put(n->child->string, 1, p->line); return 1; }