mirror of
https://github.com/freebsd/freebsd-src
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294 lines
6.7 KiB
C
294 lines
6.7 KiB
C
/* $Id: tbl_html.c,v 1.38 2021/09/09 16:52:52 schwarze Exp $ */
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/*
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* Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
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* Copyright (c) 2014,2015,2017,2018,2021 Ingo Schwarze <schwarze@openbsd.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.h"
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#include <sys/types.h>
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mandoc.h"
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#include "roff.h"
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#include "tbl.h"
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#include "out.h"
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#include "html.h"
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static void html_tblopen(struct html *, const struct tbl_span *);
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static size_t html_tbl_len(size_t, void *);
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static size_t html_tbl_strlen(const char *, void *);
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static size_t html_tbl_sulen(const struct roffsu *, void *);
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static size_t
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html_tbl_len(size_t sz, void *arg)
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{
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return sz;
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}
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static size_t
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html_tbl_strlen(const char *p, void *arg)
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{
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return strlen(p);
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}
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static size_t
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html_tbl_sulen(const struct roffsu *su, void *arg)
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{
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if (su->scale < 0.0)
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return 0;
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switch (su->unit) {
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case SCALE_FS: /* 2^16 basic units */
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return su->scale * 65536.0 / 24.0;
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case SCALE_IN: /* 10 characters per inch */
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return su->scale * 10.0;
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case SCALE_CM: /* 2.54 cm per inch */
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return su->scale * 10.0 / 2.54;
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case SCALE_PC: /* 6 pica per inch */
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case SCALE_VS:
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return su->scale * 10.0 / 6.0;
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case SCALE_EN:
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case SCALE_EM:
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return su->scale;
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case SCALE_PT: /* 12 points per pica */
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return su->scale * 10.0 / 6.0 / 12.0;
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case SCALE_BU: /* 24 basic units per character */
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return su->scale / 24.0;
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case SCALE_MM: /* 1/1000 inch */
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return su->scale / 100.0;
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default:
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abort();
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}
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}
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static void
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html_tblopen(struct html *h, const struct tbl_span *sp)
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{
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html_close_paragraph(h);
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if (h->tbl.cols == NULL) {
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h->tbl.len = html_tbl_len;
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h->tbl.slen = html_tbl_strlen;
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h->tbl.sulen = html_tbl_sulen;
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tblcalc(&h->tbl, sp, 0, 0);
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}
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assert(NULL == h->tblt);
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h->tblt = print_otag(h, TAG_TABLE, "c?ss", "tbl",
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"border",
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sp->opts->opts & TBL_OPT_ALLBOX ? "1" : NULL,
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"border-style",
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sp->opts->opts & TBL_OPT_DBOX ? "double" :
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sp->opts->opts & TBL_OPT_BOX ? "solid" : NULL,
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"border-top-style",
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sp->pos == TBL_SPAN_DHORIZ ? "double" :
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sp->pos == TBL_SPAN_HORIZ ? "solid" : NULL);
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}
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void
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print_tblclose(struct html *h)
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{
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assert(h->tblt);
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print_tagq(h, h->tblt);
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h->tblt = NULL;
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}
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void
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print_tbl(struct html *h, const struct tbl_span *sp)
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{
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const struct tbl_dat *dp;
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const struct tbl_cell *cp;
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const struct tbl_span *psp;
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const struct roffcol *col;
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struct tag *tt;
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const char *hspans, *vspans, *halign, *valign;
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const char *bborder, *lborder, *rborder;
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const char *ccp;
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char hbuf[4], vbuf[4];
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size_t sz;
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enum mandoc_esc save_font;
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int i;
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if (h->tblt == NULL)
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html_tblopen(h, sp);
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/*
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* Horizontal lines spanning the whole table
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* are handled by previous or following table rows.
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*/
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if (sp->pos != TBL_SPAN_DATA)
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return;
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/* Inhibit printing of spaces: we do padding ourselves. */
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h->flags |= HTML_NONOSPACE;
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h->flags |= HTML_NOSPACE;
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/* Draw a vertical line left of this row? */
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switch (sp->layout->vert) {
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case 2:
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lborder = "double";
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break;
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case 1:
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lborder = "solid";
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break;
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default:
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lborder = NULL;
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break;
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}
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/* Draw a horizontal line below this row? */
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bborder = NULL;
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if ((psp = sp->next) != NULL) {
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switch (psp->pos) {
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case TBL_SPAN_DHORIZ:
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bborder = "double";
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break;
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case TBL_SPAN_HORIZ:
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bborder = "solid";
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break;
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default:
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break;
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}
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}
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tt = print_otag(h, TAG_TR, "ss",
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"border-left-style", lborder,
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"border-bottom-style", bborder);
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for (dp = sp->first; dp != NULL; dp = dp->next) {
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print_stagq(h, tt);
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/*
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* Do not generate <td> elements for continuations
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* of spanned cells. Larger <td> elements covering
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* this space were already generated earlier.
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*/
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cp = dp->layout;
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if (cp->pos == TBL_CELL_SPAN || cp->pos == TBL_CELL_DOWN ||
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(dp->string != NULL && strcmp(dp->string, "\\^") == 0))
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continue;
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/* Determine the attribute values. */
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if (dp->hspans > 0) {
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(void)snprintf(hbuf, sizeof(hbuf),
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"%d", dp->hspans + 1);
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hspans = hbuf;
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} else
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hspans = NULL;
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if (dp->vspans > 0) {
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(void)snprintf(vbuf, sizeof(vbuf),
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"%d", dp->vspans + 1);
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vspans = vbuf;
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} else
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vspans = NULL;
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switch (cp->pos) {
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case TBL_CELL_CENTRE:
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halign = "center";
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break;
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case TBL_CELL_RIGHT:
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case TBL_CELL_NUMBER:
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halign = "right";
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break;
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default:
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halign = NULL;
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break;
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}
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if (cp->flags & TBL_CELL_TALIGN)
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valign = "top";
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else if (cp->flags & TBL_CELL_BALIGN)
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valign = "bottom";
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else
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valign = NULL;
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for (i = dp->hspans; i > 0; i--)
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cp = cp->next;
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switch (cp->vert) {
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case 2:
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rborder = "double";
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break;
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case 1:
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rborder = "solid";
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break;
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default:
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rborder = NULL;
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break;
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}
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/* Print the element and the attributes. */
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print_otag(h, TAG_TD, "??sss",
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"colspan", hspans, "rowspan", vspans,
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"vertical-align", valign,
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"text-align", halign,
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"border-right-style", rborder);
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if (dp->layout->pos == TBL_CELL_HORIZ ||
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dp->layout->pos == TBL_CELL_DHORIZ ||
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dp->pos == TBL_DATA_HORIZ ||
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dp->pos == TBL_DATA_DHORIZ)
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print_otag(h, TAG_HR, "");
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else if (dp->string != NULL) {
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save_font = h->metac;
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html_setfont(h, dp->layout->font);
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if (dp->layout->pos == TBL_CELL_LONG)
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print_text(h, "\\[u2003]"); /* em space */
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print_text(h, dp->string);
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if (dp->layout->pos == TBL_CELL_NUMBER) {
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col = h->tbl.cols + dp->layout->col;
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if (col->decimal < col->nwidth) {
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if ((ccp = strrchr(dp->string,
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sp->opts->decimal)) == NULL) {
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/* Punctuation space. */
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print_text(h, "\\[u2008]");
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ccp = strchr(dp->string, '\0');
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} else
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ccp++;
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sz = col->nwidth - col->decimal;
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while (--sz > 0) {
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if (*ccp == '\0')
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/* Figure space. */
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print_text(h,
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"\\[u2007]");
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else
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ccp++;
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}
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}
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}
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html_setfont(h, save_font);
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}
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}
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print_tagq(h, tt);
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h->flags &= ~HTML_NONOSPACE;
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if (sp->next == NULL) {
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assert(h->tbl.cols);
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free(h->tbl.cols);
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h->tbl.cols = NULL;
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print_tblclose(h);
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}
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}
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