diff options
Diffstat (limited to 'usr.bin/mandoc/mdoc_term.c')
| -rw-r--r-- | usr.bin/mandoc/mdoc_term.c | 1962 |
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(); +} |