-/* $Id: man_html.c,v 1.1 2009/09/21 14:56:57 kristaps Exp $ */
+/* $Id: man_html.c,v 1.133 2017/02/05 18:15:39 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2008-2012, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
*
* 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 AUTHOR DISCLAIMS ALL WARRANTIES
+ * 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 AUTHOR BE LIABLE FOR
+ * 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 "config.h"
+
#include <sys/types.h>
-#include <sys/queue.h>
+#include <assert.h>
+#include <ctype.h>
+#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
-#include "html.h"
+#include "mandoc_aux.h"
+#include "roff.h"
#include "man.h"
+#include "out.h"
+#include "html.h"
+#include "main.h"
+
+/* FIXME: have PD set the default vspace width. */
+
+#define INDENT 5
+
+#define MAN_ARGS const struct roff_meta *man, \
+ const struct roff_node *n, \
+ struct html *h
+
+struct htmlman {
+ int (*pre)(MAN_ARGS);
+ int (*post)(MAN_ARGS);
+};
+
+static void print_bvspace(struct html *,
+ const struct roff_node *);
+static void print_man_head(MAN_ARGS);
+static void print_man_nodelist(MAN_ARGS);
+static void print_man_node(MAN_ARGS);
+static int fillmode(struct html *, int);
+static int a2width(const struct roff_node *,
+ struct roffsu *);
+static int man_B_pre(MAN_ARGS);
+static int man_HP_pre(MAN_ARGS);
+static int man_IP_pre(MAN_ARGS);
+static int man_I_pre(MAN_ARGS);
+static int man_OP_pre(MAN_ARGS);
+static int man_PP_pre(MAN_ARGS);
+static int man_RS_pre(MAN_ARGS);
+static int man_SH_pre(MAN_ARGS);
+static int man_SM_pre(MAN_ARGS);
+static int man_SS_pre(MAN_ARGS);
+static int man_UR_pre(MAN_ARGS);
+static int man_alt_pre(MAN_ARGS);
+static int man_br_pre(MAN_ARGS);
+static int man_ign_pre(MAN_ARGS);
+static int man_in_pre(MAN_ARGS);
+static void man_root_post(MAN_ARGS);
+static void man_root_pre(MAN_ARGS);
+
+static const struct htmlman mans[MAN_MAX] = {
+ { man_br_pre, NULL }, /* br */
+ { NULL, NULL }, /* TH */
+ { man_SH_pre, NULL }, /* SH */
+ { man_SS_pre, NULL }, /* SS */
+ { man_IP_pre, NULL }, /* TP */
+ { man_PP_pre, NULL }, /* LP */
+ { man_PP_pre, NULL }, /* PP */
+ { man_PP_pre, NULL }, /* P */
+ { man_IP_pre, NULL }, /* IP */
+ { man_HP_pre, NULL }, /* HP */
+ { man_SM_pre, NULL }, /* SM */
+ { man_SM_pre, NULL }, /* SB */
+ { man_alt_pre, NULL }, /* BI */
+ { man_alt_pre, NULL }, /* IB */
+ { man_alt_pre, NULL }, /* BR */
+ { man_alt_pre, NULL }, /* RB */
+ { NULL, NULL }, /* R */
+ { man_B_pre, NULL }, /* B */
+ { man_I_pre, NULL }, /* I */
+ { man_alt_pre, NULL }, /* IR */
+ { man_alt_pre, NULL }, /* RI */
+ { man_br_pre, NULL }, /* sp */
+ { NULL, NULL }, /* nf */
+ { NULL, NULL }, /* fi */
+ { NULL, NULL }, /* RE */
+ { man_RS_pre, NULL }, /* RS */
+ { man_ign_pre, NULL }, /* DT */
+ { man_ign_pre, NULL }, /* UC */
+ { man_ign_pre, NULL }, /* PD */
+ { man_ign_pre, NULL }, /* AT */
+ { man_in_pre, NULL }, /* in */
+ { man_ign_pre, NULL }, /* ft */
+ { man_OP_pre, NULL }, /* OP */
+ { NULL, NULL }, /* EX */
+ { NULL, NULL }, /* EE */
+ { man_UR_pre, NULL }, /* UR */
+ { NULL, NULL }, /* UE */
+ { man_ign_pre, NULL }, /* ll */
+};
+
+/*
+ * Printing leading vertical space before a block.
+ * This is used for the paragraph macros.
+ * The rules are pretty simple, since there's very little nesting going
+ * on here. Basically, if we're the first within another block (SS/SH),
+ * then don't emit vertical space. If we are (RS), then do. If not the
+ * first, print it.
+ */
+static void
+print_bvspace(struct html *h, const struct roff_node *n)
+{
+
+ if (n->body && n->body->child)
+ if (n->body->child->type == ROFFT_TBL)
+ return;
+
+ if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS)
+ if (NULL == n->prev)
+ return;
+
+ print_paragraph(h);
+}
-/* ARGSUSED */
void
-html_man(void *arg, const struct man *m)
+html_man(void *arg, const struct roff_man *man)
+{
+ struct html *h;
+ struct tag *t;
+
+ h = (struct html *)arg;
+
+ if ((h->oflags & HTML_FRAGMENT) == 0) {
+ print_gen_decls(h);
+ print_otag(h, TAG_HTML, "");
+ t = print_otag(h, TAG_HEAD, "");
+ print_man_head(&man->meta, man->first, h);
+ print_tagq(h, t);
+ print_otag(h, TAG_BODY, "");
+ }
+
+ man_root_pre(&man->meta, man->first, h);
+ t = print_otag(h, TAG_DIV, "c", "manual-text");
+ print_man_nodelist(&man->meta, man->first->child, h);
+ print_tagq(h, t);
+ man_root_post(&man->meta, man->first, h);
+ print_tagq(h, NULL);
+}
+
+static void
+print_man_head(MAN_ARGS)
+{
+ char *cp;
+
+ print_gen_head(h);
+ mandoc_asprintf(&cp, "%s(%s)", man->title, man->msec);
+ print_otag(h, TAG_TITLE, "");
+ print_text(h, cp);
+ free(cp);
+}
+
+static void
+print_man_nodelist(MAN_ARGS)
+{
+
+ while (n != NULL) {
+ print_man_node(man, n, h);
+ n = n->next;
+ }
+}
+
+static void
+print_man_node(MAN_ARGS)
+{
+ static int want_fillmode = MAN_fi;
+ static int save_fillmode;
+
+ struct tag *t;
+ int child;
+
+ /*
+ * Handle fill mode switch requests up front,
+ * they would just cause trouble in the subsequent code.
+ */
+
+ switch (n->tok) {
+ case MAN_nf:
+ case MAN_EX:
+ want_fillmode = MAN_nf;
+ return;
+ case MAN_fi:
+ case MAN_EE:
+ want_fillmode = MAN_fi;
+ if (fillmode(h, 0) == MAN_fi)
+ print_otag(h, TAG_BR, "");
+ return;
+ default:
+ break;
+ }
+
+ /* Set up fill mode for the upcoming node. */
+
+ switch (n->type) {
+ case ROFFT_BLOCK:
+ save_fillmode = 0;
+ /* Some block macros suspend or cancel .nf. */
+ switch (n->tok) {
+ case MAN_TP: /* Tagged paragraphs */
+ case MAN_IP: /* temporarily disable .nf */
+ case MAN_HP: /* for the head. */
+ save_fillmode = want_fillmode;
+ /* FALLTHROUGH */
+ case MAN_SH: /* Section headers */
+ case MAN_SS: /* permanently cancel .nf. */
+ want_fillmode = MAN_fi;
+ /* FALLTHROUGH */
+ case MAN_PP: /* These have no head. */
+ case MAN_LP: /* They will simply */
+ case MAN_P: /* reopen .nf in the body. */
+ case MAN_RS:
+ case MAN_UR:
+ fillmode(h, MAN_fi);
+ break;
+ default:
+ break;
+ }
+ break;
+ case ROFFT_TBL:
+ fillmode(h, MAN_fi);
+ break;
+ case ROFFT_ELEM:
+ /*
+ * Some in-line macros produce tags and/or text
+ * in the handler, so they require fill mode to be
+ * configured up front just like for text nodes.
+ * For the others, keep the traditional approach
+ * of doing the same, for now.
+ */
+ fillmode(h, want_fillmode);
+ break;
+ case ROFFT_TEXT:
+ if (fillmode(h, want_fillmode) == MAN_fi &&
+ want_fillmode == MAN_fi &&
+ n->flags & NODE_LINE && *n->string == ' ')
+ print_otag(h, TAG_BR, "");
+ if (*n->string != '\0')
+ break;
+ print_paragraph(h);
+ return;
+ default:
+ break;
+ }
+
+ /* Produce output for this node. */
+
+ child = 1;
+ switch (n->type) {
+ case ROFFT_TEXT:
+ t = h->tag;
+ print_text(h, n->string);
+ break;
+ case ROFFT_EQN:
+ t = h->tag;
+ print_eqn(h, n->eqn);
+ break;
+ case ROFFT_TBL:
+ /*
+ * This will take care of initialising all of the table
+ * state data for the first table, then tearing it down
+ * for the last one.
+ */
+ print_tbl(h, n->span);
+ return;
+ default:
+ /*
+ * Close out scope of font prior to opening a macro
+ * scope.
+ */
+ if (HTMLFONT_NONE != h->metac) {
+ h->metal = h->metac;
+ h->metac = HTMLFONT_NONE;
+ }
+
+ /*
+ * Close out the current table, if it's open, and unset
+ * the "meta" table state. This will be reopened on the
+ * next table element.
+ */
+ if (h->tblt)
+ print_tblclose(h);
+
+ t = h->tag;
+ if (mans[n->tok].pre)
+ child = (*mans[n->tok].pre)(man, n, h);
+
+ /* Some block macros resume .nf in the body. */
+ if (save_fillmode && n->type == ROFFT_BODY)
+ want_fillmode = save_fillmode;
+
+ break;
+ }
+
+ if (child && n->child)
+ print_man_nodelist(man, n->child, h);
+
+ /* This will automatically close out any font scope. */
+ print_stagq(h, t);
+
+ if (fillmode(h, 0) == MAN_nf &&
+ n->next != NULL && n->next->flags & NODE_LINE)
+ print_endline(h);
+}
+
+/*
+ * MAN_nf switches to no-fill mode, MAN_fi to fill mode.
+ * Other arguments do not switch.
+ * The old mode is returned.
+ */
+static int
+fillmode(struct html *h, int want)
+{
+ struct tag *pre;
+ int had;
+
+ for (pre = h->tag; pre != NULL; pre = pre->next)
+ if (pre->tag == TAG_PRE)
+ break;
+
+ had = pre == NULL ? MAN_fi : MAN_nf;
+
+ if (want && want != had) {
+ if (want == MAN_nf)
+ print_otag(h, TAG_PRE, "");
+ else
+ print_tagq(h, pre);
+ }
+ return had;
+}
+
+static int
+a2width(const struct roff_node *n, struct roffsu *su)
{
+
+ if (n->type != ROFFT_TEXT)
+ return 0;
+ if (a2roffsu(n->string, su, SCALE_EN))
+ return 1;
+
+ return 0;
+}
+
+static void
+man_root_pre(MAN_ARGS)
+{
+ struct tag *t, *tt;
+ char *title;
+
+ assert(man->title);
+ assert(man->msec);
+ mandoc_asprintf(&title, "%s(%s)", man->title, man->msec);
+
+ t = print_otag(h, TAG_TABLE, "c", "head");
+ tt = print_otag(h, TAG_TR, "");
+
+ print_otag(h, TAG_TD, "c", "head-ltitle");
+ print_text(h, title);
+ print_stagq(h, tt);
+
+ print_otag(h, TAG_TD, "c", "head-vol");
+ if (NULL != man->vol)
+ print_text(h, man->vol);
+ print_stagq(h, tt);
+
+ print_otag(h, TAG_TD, "c", "head-rtitle");
+ print_text(h, title);
+ print_tagq(h, t);
+ free(title);
+}
+
+static void
+man_root_post(MAN_ARGS)
+{
+ struct tag *t, *tt;
+
+ t = print_otag(h, TAG_TABLE, "c", "foot");
+ tt = print_otag(h, TAG_TR, "");
+
+ print_otag(h, TAG_TD, "c", "foot-date");
+ print_text(h, man->date);
+ print_stagq(h, tt);
+
+ print_otag(h, TAG_TD, "c", "foot-os");
+ if (man->os)
+ print_text(h, man->os);
+ print_tagq(h, t);
+}
+
+
+static int
+man_br_pre(MAN_ARGS)
+{
+ struct roffsu su;
+
+ SCALE_VS_INIT(&su, 1);
+
+ if (MAN_sp == n->tok) {
+ if (NULL != (n = n->child))
+ if ( ! a2roffsu(n->string, &su, SCALE_VS))
+ su.scale = 1.0;
+ } else
+ su.scale = 0.0;
+
+ print_otag(h, TAG_DIV, "suh", &su);
+
+ /* So the div isn't empty: */
+ print_text(h, "\\~");
+
+ return 0;
+}
+
+static int
+man_SH_pre(MAN_ARGS)
+{
+ if (n->type == ROFFT_HEAD)
+ print_otag(h, TAG_H1, "c", "Sh");
+ return 1;
+}
+
+static int
+man_alt_pre(MAN_ARGS)
+{
+ const struct roff_node *nn;
+ int i;
+ enum htmltag fp;
+ struct tag *t;
+
+ for (i = 0, nn = n->child; nn; nn = nn->next, i++) {
+ switch (n->tok) {
+ case MAN_BI:
+ fp = i % 2 ? TAG_I : TAG_B;
+ break;
+ case MAN_IB:
+ fp = i % 2 ? TAG_B : TAG_I;
+ break;
+ case MAN_RI:
+ fp = i % 2 ? TAG_I : TAG_MAX;
+ break;
+ case MAN_IR:
+ fp = i % 2 ? TAG_MAX : TAG_I;
+ break;
+ case MAN_BR:
+ fp = i % 2 ? TAG_MAX : TAG_B;
+ break;
+ case MAN_RB:
+ fp = i % 2 ? TAG_B : TAG_MAX;
+ break;
+ default:
+ abort();
+ }
+
+ if (i)
+ h->flags |= HTML_NOSPACE;
+
+ if (fp != TAG_MAX)
+ t = print_otag(h, fp, "");
+
+ print_text(h, nn->string);
+
+ if (fp != TAG_MAX)
+ print_tagq(h, t);
+ }
+ return 0;
+}
+
+static int
+man_SM_pre(MAN_ARGS)
+{
+ print_otag(h, TAG_SMALL, "");
+ if (MAN_SB == n->tok)
+ print_otag(h, TAG_B, "");
+ return 1;
+}
+
+static int
+man_SS_pre(MAN_ARGS)
+{
+ if (n->type == ROFFT_HEAD)
+ print_otag(h, TAG_H2, "c", "Ss");
+ return 1;
+}
+
+static int
+man_PP_pre(MAN_ARGS)
+{
+
+ if (n->type == ROFFT_HEAD)
+ return 0;
+ else if (n->type == ROFFT_BLOCK)
+ print_bvspace(h, n);
+
+ return 1;
+}
+
+static int
+man_IP_pre(MAN_ARGS)
+{
+ const struct roff_node *nn;
+
+ if (n->type == ROFFT_BODY) {
+ print_otag(h, TAG_DD, "c", "It-tag");
+ return 1;
+ } else if (n->type != ROFFT_HEAD) {
+ print_otag(h, TAG_DL, "c", "Bl-tag");
+ return 1;
+ }
+
+ /* FIXME: width specification. */
+
+ print_otag(h, TAG_DT, "c", "It-tag");
+
+ /* For IP, only print the first header element. */
+
+ if (MAN_IP == n->tok && n->child)
+ print_man_node(man, n->child, h);
+
+ /* For TP, only print next-line header elements. */
+
+ if (MAN_TP == n->tok) {
+ nn = n->child;
+ while (NULL != nn && 0 == (NODE_LINE & nn->flags))
+ nn = nn->next;
+ while (NULL != nn) {
+ print_man_node(man, nn, h);
+ nn = nn->next;
+ }
+ }
+
+ return 0;
+}
+
+static int
+man_HP_pre(MAN_ARGS)
+{
+ struct roffsu sum, sui;
+ const struct roff_node *np;
+
+ if (n->type == ROFFT_HEAD)
+ return 0;
+ else if (n->type != ROFFT_BLOCK)
+ return 1;
+
+ np = n->head->child;
+
+ if (np == NULL || !a2width(np, &sum))
+ SCALE_HS_INIT(&sum, INDENT);
+
+ sui.unit = sum.unit;
+ sui.scale = -sum.scale;
+
+ print_bvspace(h, n);
+ print_otag(h, TAG_DIV, "csului", "Pp", &sum, &sui);
+ return 1;
+}
+
+static int
+man_OP_pre(MAN_ARGS)
+{
+ struct tag *tt;
+
+ print_text(h, "[");
+ h->flags |= HTML_NOSPACE;
+ tt = print_otag(h, TAG_SPAN, "c", "Op");
+
+ if (NULL != (n = n->child)) {
+ print_otag(h, TAG_B, "");
+ print_text(h, n->string);
+ }
+
+ print_stagq(h, tt);
+
+ if (NULL != n && NULL != n->next) {
+ print_otag(h, TAG_I, "");
+ print_text(h, n->next->string);
+ }
+
+ print_stagq(h, tt);
+ h->flags |= HTML_NOSPACE;
+ print_text(h, "]");
+ return 0;
+}
+
+static int
+man_B_pre(MAN_ARGS)
+{
+ print_otag(h, TAG_B, "");
+ return 1;
+}
+
+static int
+man_I_pre(MAN_ARGS)
+{
+ print_otag(h, TAG_I, "");
+ return 1;
+}
+
+static int
+man_in_pre(MAN_ARGS)
+{
+ print_otag(h, TAG_BR, "");
+ return 0;
+}
+
+static int
+man_ign_pre(MAN_ARGS)
+{
+
+ return 0;
+}
+
+static int
+man_RS_pre(MAN_ARGS)
+{
+ struct roffsu su;
+
+ if (n->type == ROFFT_HEAD)
+ return 0;
+ else if (n->type == ROFFT_BODY)
+ return 1;
+
+ SCALE_HS_INIT(&su, INDENT);
+ if (n->head->child)
+ a2width(n->head->child, &su);
+
+ print_otag(h, TAG_DIV, "sul", &su);
+ return 1;
+}
+
+static int
+man_UR_pre(MAN_ARGS)
+{
+ n = n->child;
+ assert(n->type == ROFFT_HEAD);
+ if (n->child != NULL) {
+ assert(n->child->type == ROFFT_TEXT);
+ print_otag(h, TAG_A, "ch", "Lk", n->child->string);
+ }
+
+ assert(n->next->type == ROFFT_BODY);
+ if (n->next->child != NULL)
+ n = n->next;
+
+ print_man_nodelist(man, n->child, h);
+
+ return 0;
}
git.ckatri.com / mandoc.git / blobdiff