diff options
Diffstat (limited to 'usr.bin/mandoc/tbl_term.c')
| -rw-r--r-- | usr.bin/mandoc/tbl_term.c | 943 |
1 files changed, 943 insertions, 0 deletions
diff --git a/usr.bin/mandoc/tbl_term.c b/usr.bin/mandoc/tbl_term.c new file mode 100644 index 0000000..238bf7a --- /dev/null +++ b/usr.bin/mandoc/tbl_term.c @@ -0,0 +1,943 @@ +/* $OpenBSD: tbl_term.c,v 1.61 2020/01/11 16:24:33 schwarze Exp $ */ +/* + * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv> + * Copyright (c) 2011-2020 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 + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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 <sys/types.h> + +#include <assert.h> +#include <ctype.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "mandoc.h" +#include "tbl.h" +#include "out.h" +#include "term.h" + +#define IS_HORIZ(cp) ((cp)->pos == TBL_CELL_HORIZ || \ + (cp)->pos == TBL_CELL_DHORIZ) + + +static size_t term_tbl_len(size_t, void *); +static size_t term_tbl_strlen(const char *, void *); +static size_t term_tbl_sulen(const struct roffsu *, void *); +static void tbl_data(struct termp *, const struct tbl_opts *, + const struct tbl_cell *, + const struct tbl_dat *, + const struct roffcol *); +static void tbl_direct_border(struct termp *, int, size_t); +static void tbl_fill_border(struct termp *, int, size_t); +static void tbl_fill_char(struct termp *, char, size_t); +static void tbl_fill_string(struct termp *, const char *, size_t); +static void tbl_hrule(struct termp *, const struct tbl_span *, + const struct tbl_span *, const struct tbl_span *, + int); +static void tbl_literal(struct termp *, const struct tbl_dat *, + const struct roffcol *); +static void tbl_number(struct termp *, const struct tbl_opts *, + const struct tbl_dat *, + const struct roffcol *); +static void tbl_word(struct termp *, const struct tbl_dat *); + + +/* + * The following border-character tables are indexed + * by ternary (3-based) numbers, as opposed to binary or decimal. + * Each ternary digit describes the line width in one direction: + * 0 means no line, 1 single or light line, 2 double or heavy line. + */ + +/* Positional values of the four directions. */ +#define BRIGHT 1 +#define BDOWN 3 +#define BLEFT (3 * 3) +#define BUP (3 * 3 * 3) +#define BHORIZ (BLEFT + BRIGHT) + +/* Code points to use for each combination of widths. */ +static const int borders_utf8[81] = { + 0x0020, 0x2576, 0x257a, /* 000 right */ + 0x2577, 0x250c, 0x250d, /* 001 down */ + 0x257b, 0x250e, 0x250f, /* 002 */ + 0x2574, 0x2500, 0x257c, /* 010 left */ + 0x2510, 0x252c, 0x252e, /* 011 left down */ + 0x2512, 0x2530, 0x2532, /* 012 */ + 0x2578, 0x257e, 0x2501, /* 020 left */ + 0x2511, 0x252d, 0x252f, /* 021 left down */ + 0x2513, 0x2531, 0x2533, /* 022 */ + 0x2575, 0x2514, 0x2515, /* 100 up */ + 0x2502, 0x251c, 0x251d, /* 101 up down */ + 0x257d, 0x251f, 0x2522, /* 102 */ + 0x2518, 0x2534, 0x2536, /* 110 up left */ + 0x2524, 0x253c, 0x253e, /* 111 all */ + 0x2527, 0x2541, 0x2546, /* 112 */ + 0x2519, 0x2535, 0x2537, /* 120 up left */ + 0x2525, 0x253d, 0x253f, /* 121 all */ + 0x252a, 0x2545, 0x2548, /* 122 */ + 0x2579, 0x2516, 0x2517, /* 200 up */ + 0x257f, 0x251e, 0x2521, /* 201 up down */ + 0x2503, 0x2520, 0x2523, /* 202 */ + 0x251a, 0x2538, 0x253a, /* 210 up left */ + 0x2526, 0x2540, 0x2544, /* 211 all */ + 0x2528, 0x2542, 0x254a, /* 212 */ + 0x251b, 0x2539, 0x253b, /* 220 up left */ + 0x2529, 0x2543, 0x2547, /* 221 all */ + 0x252b, 0x2549, 0x254b, /* 222 */ +}; + +/* ASCII approximations for these code points, compatible with groff. */ +static const int borders_ascii[81] = { + ' ', '-', '=', /* 000 right */ + '|', '+', '+', /* 001 down */ + '|', '+', '+', /* 002 */ + '-', '-', '=', /* 010 left */ + '+', '+', '+', /* 011 left down */ + '+', '+', '+', /* 012 */ + '=', '=', '=', /* 020 left */ + '+', '+', '+', /* 021 left down */ + '+', '+', '+', /* 022 */ + '|', '+', '+', /* 100 up */ + '|', '+', '+', /* 101 up down */ + '|', '+', '+', /* 102 */ + '+', '+', '+', /* 110 up left */ + '+', '+', '+', /* 111 all */ + '+', '+', '+', /* 112 */ + '+', '+', '+', /* 120 up left */ + '+', '+', '+', /* 121 all */ + '+', '+', '+', /* 122 */ + '|', '+', '+', /* 200 up */ + '|', '+', '+', /* 201 up down */ + '|', '+', '+', /* 202 */ + '+', '+', '+', /* 210 up left */ + '+', '+', '+', /* 211 all */ + '+', '+', '+', /* 212 */ + '+', '+', '+', /* 220 up left */ + '+', '+', '+', /* 221 all */ + '+', '+', '+', /* 222 */ +}; + +/* Either of the above according to the selected output encoding. */ +static const int *borders_locale; + + +static size_t +term_tbl_sulen(const struct roffsu *su, void *arg) +{ + int i; + + i = term_hen((const struct termp *)arg, su); + return i > 0 ? i : 0; +} + +static size_t +term_tbl_strlen(const char *p, void *arg) +{ + return term_strlen((const struct termp *)arg, p); +} + +static size_t +term_tbl_len(size_t sz, void *arg) +{ + return term_len((const struct termp *)arg, sz); +} + + +void +term_tbl(struct termp *tp, const struct tbl_span *sp) +{ + const struct tbl_cell *cp, *cpn, *cpp, *cps; + const struct tbl_dat *dp; + static size_t offset; + size_t save_offset; + size_t coloff, tsz; + int hspans, ic, more; + int dvert, fc, horiz, lhori, rhori, uvert; + + /* Inhibit printing of spaces: we do padding ourselves. */ + + tp->flags |= TERMP_NOSPACE | TERMP_NONOSPACE; + save_offset = tp->tcol->offset; + + /* + * The first time we're invoked for a given table block, + * calculate the table widths and decimal positions. + */ + + if (tp->tbl.cols == NULL) { + borders_locale = tp->enc == TERMENC_UTF8 ? + borders_utf8 : borders_ascii; + + tp->tbl.len = term_tbl_len; + tp->tbl.slen = term_tbl_strlen; + tp->tbl.sulen = term_tbl_sulen; + tp->tbl.arg = tp; + + tblcalc(&tp->tbl, sp, tp->tcol->offset, tp->tcol->rmargin); + + /* Tables leak .ta settings to subsequent text. */ + + term_tab_set(tp, NULL); + coloff = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) || + sp->opts->lvert; + for (ic = 0; ic < sp->opts->cols; ic++) { + coloff += tp->tbl.cols[ic].width; + term_tab_iset(coloff); + coloff += tp->tbl.cols[ic].spacing; + } + + /* Center the table as a whole. */ + + offset = tp->tcol->offset; + if (sp->opts->opts & TBL_OPT_CENTRE) { + tsz = sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) + ? 2 : !!sp->opts->lvert + !!sp->opts->rvert; + for (ic = 0; ic + 1 < sp->opts->cols; ic++) + tsz += tp->tbl.cols[ic].width + + tp->tbl.cols[ic].spacing; + if (sp->opts->cols) + tsz += tp->tbl.cols[sp->opts->cols - 1].width; + if (offset + tsz > tp->tcol->rmargin) + tsz -= 1; + offset = offset + tp->tcol->rmargin > tsz ? + (offset + tp->tcol->rmargin - tsz) / 2 : 0; + tp->tcol->offset = offset; + } + + /* Horizontal frame at the start of boxed tables. */ + + if (tp->enc == TERMENC_ASCII && + sp->opts->opts & TBL_OPT_DBOX) + tbl_hrule(tp, NULL, sp, sp, TBL_OPT_DBOX); + if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) + tbl_hrule(tp, NULL, sp, sp, TBL_OPT_BOX); + } + + /* Set up the columns. */ + + tp->flags |= TERMP_MULTICOL; + tp->tcol->offset = offset; + horiz = 0; + switch (sp->pos) { + case TBL_SPAN_HORIZ: + case TBL_SPAN_DHORIZ: + horiz = 1; + term_setcol(tp, 1); + break; + case TBL_SPAN_DATA: + term_setcol(tp, sp->opts->cols + 2); + coloff = tp->tcol->offset; + + /* Set up a column for a left vertical frame. */ + + if (sp->opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) || + sp->opts->lvert) + coloff++; + tp->tcol->rmargin = coloff; + + /* Set up the data columns. */ + + dp = sp->first; + hspans = 0; + for (ic = 0; ic < sp->opts->cols; ic++) { + if (hspans == 0) { + tp->tcol++; + tp->tcol->offset = coloff; + } + coloff += tp->tbl.cols[ic].width; + tp->tcol->rmargin = coloff; + if (ic + 1 < sp->opts->cols) + coloff += tp->tbl.cols[ic].spacing; + if (hspans) { + hspans--; + continue; + } + if (dp != NULL && + (ic || sp->layout->first->pos != TBL_CELL_SPAN)) { + hspans = dp->hspans; + dp = dp->next; + } + } + + /* Set up a column for a right vertical frame. */ + + tp->tcol++; + tp->tcol->offset = coloff + 1; + tp->tcol->rmargin = tp->maxrmargin; + + /* Spans may have reduced the number of columns. */ + + tp->lasttcol = tp->tcol - tp->tcols; + + /* Fill the buffers for all data columns. */ + + tp->tcol = tp->tcols; + cp = cpn = sp->layout->first; + dp = sp->first; + hspans = 0; + for (ic = 0; ic < sp->opts->cols; ic++) { + if (cpn != NULL) { + cp = cpn; + cpn = cpn->next; + } + if (hspans) { + hspans--; + continue; + } + tp->tcol++; + tp->col = 0; + tbl_data(tp, sp->opts, cp, dp, tp->tbl.cols + ic); + if (dp != NULL && + (ic || sp->layout->first->pos != TBL_CELL_SPAN)) { + hspans = dp->hspans; + dp = dp->next; + } + } + break; + } + + do { + /* Print the vertical frame at the start of each row. */ + + tp->tcol = tp->tcols; + uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 : + sp->opts->opts & TBL_OPT_BOX ? 1 : 0; + if (sp->pos == TBL_SPAN_DATA && uvert < sp->layout->vert) + uvert = dvert = sp->layout->vert; + if (sp->next != NULL && sp->next->pos == TBL_SPAN_DATA && + dvert < sp->next->layout->vert) + dvert = sp->next->layout->vert; + if (sp->prev != NULL && uvert < sp->prev->layout->vert && + (horiz || (IS_HORIZ(sp->layout->first) && + !IS_HORIZ(sp->prev->layout->first)))) + uvert = sp->prev->layout->vert; + rhori = sp->pos == TBL_SPAN_DHORIZ || + (sp->first != NULL && sp->first->pos == TBL_DATA_DHORIZ) || + sp->layout->first->pos == TBL_CELL_DHORIZ ? 2 : + sp->pos == TBL_SPAN_HORIZ || + (sp->first != NULL && sp->first->pos == TBL_DATA_HORIZ) || + sp->layout->first->pos == TBL_CELL_HORIZ ? 1 : 0; + fc = BUP * uvert + BDOWN * dvert + BRIGHT * rhori; + if (uvert > 0 || dvert > 0 || (horiz && sp->opts->lvert)) { + (*tp->advance)(tp, tp->tcols->offset); + tp->viscol = tp->tcol->offset; + tbl_direct_border(tp, fc, 1); + } + + /* Print the data cells. */ + + more = 0; + if (horiz) + tbl_hrule(tp, sp->prev, sp, sp->next, 0); + else { + cp = sp->layout->first; + cpn = sp->next == NULL ? NULL : + sp->next->layout->first; + cpp = sp->prev == NULL ? NULL : + sp->prev->layout->first; + dp = sp->first; + hspans = 0; + for (ic = 0; ic < sp->opts->cols; ic++) { + + /* + * Figure out whether to print a + * vertical line after this cell + * and advance to next layout cell. + */ + + uvert = dvert = fc = 0; + if (cp != NULL) { + cps = cp; + while (cps->next != NULL && + cps->next->pos == TBL_CELL_SPAN) + cps = cps->next; + if (sp->pos == TBL_SPAN_DATA) + uvert = dvert = cps->vert; + switch (cp->pos) { + case TBL_CELL_HORIZ: + fc = BHORIZ; + break; + case TBL_CELL_DHORIZ: + fc = BHORIZ * 2; + break; + default: + break; + } + } + if (cpp != NULL) { + if (uvert < cpp->vert && + cp != NULL && + ((IS_HORIZ(cp) && + !IS_HORIZ(cpp)) || + (cp->next != NULL && + cpp->next != NULL && + IS_HORIZ(cp->next) && + !IS_HORIZ(cpp->next)))) + uvert = cpp->vert; + cpp = cpp->next; + } + if (sp->opts->opts & TBL_OPT_ALLBOX) { + if (uvert == 0) + uvert = 1; + if (dvert == 0) + dvert = 1; + } + if (cpn != NULL) { + if (dvert == 0 || + (dvert < cpn->vert && + tp->enc == TERMENC_UTF8)) + dvert = cpn->vert; + cpn = cpn->next; + } + + lhori = (cp != NULL && + cp->pos == TBL_CELL_DHORIZ) || + (dp != NULL && + dp->pos == TBL_DATA_DHORIZ) ? 2 : + (cp != NULL && + cp->pos == TBL_CELL_HORIZ) || + (dp != NULL && + dp->pos == TBL_DATA_HORIZ) ? 1 : 0; + + /* + * Skip later cells in a span, + * figure out whether to start a span, + * and advance to next data cell. + */ + + if (hspans) { + hspans--; + cp = cp->next; + continue; + } + if (dp != NULL && (ic || + sp->layout->first->pos != TBL_CELL_SPAN)) { + hspans = dp->hspans; + dp = dp->next; + } + + /* + * Print one line of text in the cell + * and remember whether there is more. + */ + + tp->tcol++; + if (tp->tcol->col < tp->tcol->lastcol) + term_flushln(tp); + if (tp->tcol->col < tp->tcol->lastcol) + more = 1; + + /* + * Vertical frames between data cells, + * but not after the last column. + */ + + if (fc == 0 && + ((uvert == 0 && dvert == 0 && + cp != NULL && (cp->next == NULL || + !IS_HORIZ(cp->next))) || + tp->tcol + 1 == + tp->tcols + tp->lasttcol)) { + if (cp != NULL) + cp = cp->next; + continue; + } + + if (tp->viscol < tp->tcol->rmargin) { + (*tp->advance)(tp, tp->tcol->rmargin + - tp->viscol); + tp->viscol = tp->tcol->rmargin; + } + while (tp->viscol < tp->tcol->rmargin + + tp->tbl.cols[ic].spacing / 2) + tbl_direct_border(tp, + BHORIZ * lhori, 1); + + if (tp->tcol + 1 == tp->tcols + tp->lasttcol) + continue; + + if (cp != NULL) + cp = cp->next; + + rhori = (cp != NULL && + cp->pos == TBL_CELL_DHORIZ) || + (dp != NULL && + dp->pos == TBL_DATA_DHORIZ) ? 2 : + (cp != NULL && + cp->pos == TBL_CELL_HORIZ) || + (dp != NULL && + dp->pos == TBL_DATA_HORIZ) ? 1 : 0; + + if (tp->tbl.cols[ic].spacing) + tbl_direct_border(tp, + BLEFT * lhori + BRIGHT * rhori + + BUP * uvert + BDOWN * dvert, 1); + + if (tp->enc == TERMENC_UTF8) + uvert = dvert = 0; + + if (tp->tbl.cols[ic].spacing > 2 && + (uvert > 1 || dvert > 1 || rhori)) + tbl_direct_border(tp, + BHORIZ * rhori + + BUP * (uvert > 1) + + BDOWN * (dvert > 1), 1); + } + } + + /* Print the vertical frame at the end of each row. */ + + uvert = dvert = sp->opts->opts & TBL_OPT_DBOX ? 2 : + sp->opts->opts & TBL_OPT_BOX ? 1 : 0; + if (sp->pos == TBL_SPAN_DATA && + uvert < sp->layout->last->vert && + sp->layout->last->col + 1 == sp->opts->cols) + uvert = dvert = sp->layout->last->vert; + if (sp->next != NULL && + dvert < sp->next->layout->last->vert && + sp->next->layout->last->col + 1 == sp->opts->cols) + dvert = sp->next->layout->last->vert; + if (sp->prev != NULL && + uvert < sp->prev->layout->last->vert && + sp->prev->layout->last->col + 1 == sp->opts->cols && + (horiz || (IS_HORIZ(sp->layout->last) && + !IS_HORIZ(sp->prev->layout->last)))) + uvert = sp->prev->layout->last->vert; + lhori = sp->pos == TBL_SPAN_DHORIZ || + (sp->last != NULL && + sp->last->pos == TBL_DATA_DHORIZ && + sp->last->layout->col + 1 == sp->opts->cols) || + (sp->layout->last->pos == TBL_CELL_DHORIZ && + sp->layout->last->col + 1 == sp->opts->cols) ? 2 : + sp->pos == TBL_SPAN_HORIZ || + (sp->last != NULL && + sp->last->pos == TBL_DATA_HORIZ && + sp->last->layout->col + 1 == sp->opts->cols) || + (sp->layout->last->pos == TBL_CELL_HORIZ && + sp->layout->last->col + 1 == sp->opts->cols) ? 1 : 0; + fc = BUP * uvert + BDOWN * dvert + BLEFT * lhori; + if (uvert > 0 || dvert > 0 || (horiz && sp->opts->rvert)) { + if (horiz == 0 && (IS_HORIZ(sp->layout->last) == 0 || + sp->layout->last->col + 1 < sp->opts->cols)) { + tp->tcol++; + do { + tbl_direct_border(tp, + BHORIZ * lhori, 1); + } while (tp->viscol < tp->tcol->offset); + } + tbl_direct_border(tp, fc, 1); + } + (*tp->endline)(tp); + tp->viscol = 0; + } while (more); + + /* + * Clean up after this row. If it is the last line + * of the table, print the box line and clean up + * column data; otherwise, print the allbox line. + */ + + term_setcol(tp, 1); + tp->flags &= ~TERMP_MULTICOL; + tp->tcol->rmargin = tp->maxrmargin; + if (sp->next == NULL) { + if (sp->opts->opts & (TBL_OPT_DBOX | TBL_OPT_BOX)) { + tbl_hrule(tp, sp, sp, NULL, TBL_OPT_BOX); + tp->skipvsp = 1; + } + if (tp->enc == TERMENC_ASCII && + sp->opts->opts & TBL_OPT_DBOX) { + tbl_hrule(tp, sp, sp, NULL, TBL_OPT_DBOX); + tp->skipvsp = 2; + } + assert(tp->tbl.cols); + free(tp->tbl.cols); + tp->tbl.cols = NULL; + } else if (horiz == 0 && sp->opts->opts & TBL_OPT_ALLBOX && + (sp->next == NULL || sp->next->pos == TBL_SPAN_DATA || + sp->next->next != NULL)) + tbl_hrule(tp, sp, sp, sp->next, TBL_OPT_ALLBOX); + + tp->tcol->offset = save_offset; + tp->flags &= ~TERMP_NONOSPACE; +} + +static void +tbl_hrule(struct termp *tp, const struct tbl_span *spp, + const struct tbl_span *sp, const struct tbl_span *spn, int flags) +{ + const struct tbl_cell *cpp; /* Layout cell above this line. */ + const struct tbl_cell *cp; /* Layout cell in this line. */ + const struct tbl_cell *cpn; /* Layout cell below this line. */ + const struct tbl_dat *dpn; /* Data cell below this line. */ + const struct roffcol *col; /* Contains width and spacing. */ + int opts; /* For the table as a whole. */ + int bw; /* Box line width. */ + int hw; /* Horizontal line width. */ + int lw, rw; /* Left and right line widths. */ + int uw, dw; /* Vertical line widths. */ + + cpp = spp == NULL ? NULL : spp->layout->first; + cp = sp == NULL ? NULL : sp->layout->first; + cpn = spn == NULL ? NULL : spn->layout->first; + dpn = NULL; + if (spn != NULL) { + if (spn->pos == TBL_SPAN_DATA) + dpn = spn->first; + else if (spn->next != NULL) + dpn = spn->next->first; + } + opts = sp->opts->opts; + bw = opts & TBL_OPT_DBOX ? (tp->enc == TERMENC_UTF8 ? 2 : 1) : + opts & (TBL_OPT_BOX | TBL_OPT_ALLBOX) ? 1 : 0; + hw = flags == TBL_OPT_DBOX || flags == TBL_OPT_BOX ? bw : + sp->pos == TBL_SPAN_DHORIZ ? 2 : 1; + + /* Print the left end of the line. */ + + if (tp->viscol == 0) { + (*tp->advance)(tp, tp->tcols->offset); + tp->viscol = tp->tcols->offset; + } + if (flags != 0) + tbl_direct_border(tp, + (spp == NULL ? 0 : BUP * bw) + + (spn == NULL ? 0 : BDOWN * bw) + + (spp == NULL || cpn == NULL || + cpn->pos != TBL_CELL_DOWN ? BRIGHT * hw : 0), 1); + + col = tp->tbl.cols; + for (;;) { + if (cp == NULL) + col++; + else + col = tp->tbl.cols + cp->col; + + /* Print the horizontal line inside this column. */ + + lw = cpp == NULL || cpn == NULL || + (cpn->pos != TBL_CELL_DOWN && + (dpn == NULL || dpn->string == NULL || + strcmp(dpn->string, "\\^") != 0)) + ? hw : 0; + tbl_direct_border(tp, BHORIZ * lw, + col->width + col->spacing / 2); + + /* + * Figure out whether a vertical line is crossing + * at the end of this column, + * and advance to the next column. + */ + + uw = dw = 0; + if (cpp != NULL) { + if (flags != TBL_OPT_DBOX) { + uw = cpp->vert; + if (uw == 0 && opts & TBL_OPT_ALLBOX) + uw = 1; + } + cpp = cpp->next; + } else if (spp != NULL && opts & TBL_OPT_ALLBOX) + uw = 1; + if (cp != NULL) + cp = cp->next; + if (cpn != NULL) { + if (flags != TBL_OPT_DBOX) { + dw = cpn->vert; + if (dw == 0 && opts & TBL_OPT_ALLBOX) + dw = 1; + } + cpn = cpn->next; + while (dpn != NULL && dpn->layout != cpn) + dpn = dpn->next; + } else if (spn != NULL && opts & TBL_OPT_ALLBOX) + dw = 1; + if (col + 1 == tp->tbl.cols + sp->opts->cols) + break; + + /* Vertical lines do not cross spanned cells. */ + + if (cpp != NULL && cpp->pos == TBL_CELL_SPAN) + uw = 0; + if (cpn != NULL && cpn->pos == TBL_CELL_SPAN) + dw = 0; + + /* The horizontal line inside the next column. */ + + rw = cpp == NULL || cpn == NULL || + (cpn->pos != TBL_CELL_DOWN && + (dpn == NULL || dpn->string == NULL || + strcmp(dpn->string, "\\^") != 0)) + ? hw : 0; + + /* The line crossing at the end of this column. */ + + if (col->spacing) + tbl_direct_border(tp, BLEFT * lw + + BRIGHT * rw + BUP * uw + BDOWN * dw, 1); + + /* + * In ASCII output, a crossing may print two characters. + */ + + if (tp->enc != TERMENC_ASCII || (uw < 2 && dw < 2)) + uw = dw = 0; + if (col->spacing > 2) + tbl_direct_border(tp, + BHORIZ * rw + BUP * uw + BDOWN * dw, 1); + + /* Padding before the start of the next column. */ + + if (col->spacing > 4) + tbl_direct_border(tp, + BHORIZ * rw, (col->spacing - 3) / 2); + } + + /* Print the right end of the line. */ + + if (flags != 0) { + tbl_direct_border(tp, + (spp == NULL ? 0 : BUP * bw) + + (spn == NULL ? 0 : BDOWN * bw) + + (spp == NULL || spn == NULL || + spn->layout->last->pos != TBL_CELL_DOWN ? + BLEFT * hw : 0), 1); + (*tp->endline)(tp); + tp->viscol = 0; + } +} + +static void +tbl_data(struct termp *tp, const struct tbl_opts *opts, + const struct tbl_cell *cp, const struct tbl_dat *dp, + const struct roffcol *col) +{ + switch (cp->pos) { + case TBL_CELL_HORIZ: + tbl_fill_border(tp, BHORIZ, col->width); + return; + case TBL_CELL_DHORIZ: + tbl_fill_border(tp, BHORIZ * 2, col->width); + return; + default: + break; + } + + if (dp == NULL) + return; + + switch (dp->pos) { + case TBL_DATA_NONE: + return; + case TBL_DATA_HORIZ: + case TBL_DATA_NHORIZ: + tbl_fill_border(tp, BHORIZ, col->width); + return; + case TBL_DATA_NDHORIZ: + case TBL_DATA_DHORIZ: + tbl_fill_border(tp, BHORIZ * 2, col->width); + return; + default: + break; + } + + switch (cp->pos) { + case TBL_CELL_LONG: + case TBL_CELL_CENTRE: + case TBL_CELL_LEFT: + case TBL_CELL_RIGHT: + tbl_literal(tp, dp, col); + break; + case TBL_CELL_NUMBER: + tbl_number(tp, opts, dp, col); + break; + case TBL_CELL_DOWN: + case TBL_CELL_SPAN: + break; + default: + abort(); + } +} + +static void +tbl_fill_string(struct termp *tp, const char *cp, size_t len) +{ + size_t i, sz; + + sz = term_strlen(tp, cp); + for (i = 0; i < len; i += sz) + term_word(tp, cp); +} + +static void +tbl_fill_char(struct termp *tp, char c, size_t len) +{ + char cp[2]; + + cp[0] = c; + cp[1] = '\0'; + tbl_fill_string(tp, cp, len); +} + +static void +tbl_fill_border(struct termp *tp, int c, size_t len) +{ + char buf[12]; + + if ((c = borders_locale[c]) > 127) { + (void)snprintf(buf, sizeof(buf), "\\[u%04x]", c); + tbl_fill_string(tp, buf, len); + } else + tbl_fill_char(tp, c, len); +} + +static void +tbl_direct_border(struct termp *tp, int c, size_t len) +{ + size_t i, sz; + + c = borders_locale[c]; + sz = (*tp->width)(tp, c); + for (i = 0; i < len; i += sz) { + (*tp->letter)(tp, c); + tp->viscol += sz; + } +} + +static void +tbl_literal(struct termp *tp, const struct tbl_dat *dp, + const struct roffcol *col) +{ + size_t len, padl, padr, width; + int ic, hspans; + + assert(dp->string); + len = term_strlen(tp, dp->string); + width = col->width; + ic = dp->layout->col; + hspans = dp->hspans; + while (hspans--) + width += tp->tbl.cols[++ic].width + 3; + + padr = width > len ? width - len : 0; + padl = 0; + + switch (dp->layout->pos) { + case TBL_CELL_LONG: + padl = term_len(tp, 1); + padr = padr > padl ? padr - padl : 0; + break; + case TBL_CELL_CENTRE: + if (2 > padr) + break; + padl = padr / 2; + padr -= padl; + break; + case TBL_CELL_RIGHT: + padl = padr; + padr = 0; + break; + default: + break; + } + + tbl_fill_char(tp, ASCII_NBRSP, padl); + tbl_word(tp, dp); + tbl_fill_char(tp, ASCII_NBRSP, padr); +} + +static void +tbl_number(struct termp *tp, const struct tbl_opts *opts, + const struct tbl_dat *dp, + const struct roffcol *col) +{ + const char *cp, *lastdigit, *lastpoint; + size_t intsz, padl, totsz; + char buf[2]; + + /* + * Almost the same code as in tblcalc_number(): + * First find the position of the decimal point. + */ + + assert(dp->string); + lastdigit = lastpoint = NULL; + for (cp = dp->string; cp[0] != '\0'; cp++) { + if (cp[0] == '\\' && cp[1] == '&') { + lastdigit = lastpoint = cp; + break; + } else if (cp[0] == opts->decimal && + (isdigit((unsigned char)cp[1]) || + (cp > dp->string && isdigit((unsigned char)cp[-1])))) + lastpoint = cp; + else if (isdigit((unsigned char)cp[0])) + lastdigit = cp; + } + + /* Then measure both widths. */ + + padl = 0; + totsz = term_strlen(tp, dp->string); + if (lastdigit != NULL) { + if (lastpoint == NULL) + lastpoint = lastdigit + 1; + intsz = 0; + buf[1] = '\0'; + for (cp = dp->string; cp < lastpoint; cp++) { + buf[0] = cp[0]; + intsz += term_strlen(tp, buf); + } + + /* + * Pad left to match the decimal position, + * but avoid exceeding the total column width. + */ + + if (col->decimal > intsz && col->width > totsz) { + padl = col->decimal - intsz; + if (padl + totsz > col->width) + padl = col->width - totsz; + } + + /* If it is not a number, simply center the string. */ + + } else if (col->width > totsz) + padl = (col->width - totsz) / 2; + + tbl_fill_char(tp, ASCII_NBRSP, padl); + tbl_word(tp, dp); + + /* Pad right to fill the column. */ + + if (col->width > padl + totsz) + tbl_fill_char(tp, ASCII_NBRSP, col->width - padl - totsz); +} + +static void +tbl_word(struct termp *tp, const struct tbl_dat *dp) +{ + int prev_font; + + prev_font = tp->fonti; + if (dp->layout->flags & TBL_CELL_BOLD) + term_fontpush(tp, TERMFONT_BOLD); + else if (dp->layout->flags & TBL_CELL_ITALIC) + term_fontpush(tp, TERMFONT_UNDER); + + term_word(tp, dp->string); + + term_fontpopq(tp, prev_font); +} |