version 1.1, 2009/09/21 00:39:02 |
version 1.74, 2018/11/25 19:24:20 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
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* Copyright (c) 2011,2014,2015,2017,2018 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
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#include "config.h" |
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#include <sys/types.h> |
#include <sys/types.h> |
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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
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#include <stdint.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
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#include <time.h> |
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#include "mdoc.h" |
#include "mandoc_aux.h" |
#include "man.h" |
#include "mandoc.h" |
#include "out.h" |
#include "out.h" |
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int |
static void tblcalc_data(struct rofftbl *, struct roffcol *, |
out_a2list(const struct mdoc_node *n) |
const struct tbl_opts *, const struct tbl_dat *, |
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size_t); |
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static void tblcalc_literal(struct rofftbl *, struct roffcol *, |
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const struct tbl_dat *, size_t); |
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static void tblcalc_number(struct rofftbl *, struct roffcol *, |
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const struct tbl_opts *, const struct tbl_dat *); |
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/* |
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* Parse the *src string and store a scaling unit into *dst. |
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* If the string doesn't specify the unit, use the default. |
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* If no default is specified, fail. |
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* Return a pointer to the byte after the last byte used, |
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* or NULL on total failure. |
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*/ |
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const char * |
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a2roffsu(const char *src, struct roffsu *dst, enum roffscale def) |
{ |
{ |
int i; |
char *endptr; |
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assert(MDOC_BLOCK == n->type && MDOC_Bl == n->tok); |
dst->unit = def == SCALE_MAX ? SCALE_BU : def; |
assert(n->args); |
dst->scale = strtod(src, &endptr); |
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if (endptr == src) |
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return NULL; |
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for (i = 0; i < (int)n->args->argc; i++) |
switch (*endptr++) { |
switch (n->args->argv[i].arg) { |
case 'c': |
case (MDOC_Enum): |
dst->unit = SCALE_CM; |
/* FALLTHROUGH */ |
break; |
case (MDOC_Dash): |
case 'i': |
/* FALLTHROUGH */ |
dst->unit = SCALE_IN; |
case (MDOC_Hyphen): |
break; |
/* FALLTHROUGH */ |
case 'f': |
case (MDOC_Bullet): |
dst->unit = SCALE_FS; |
/* FALLTHROUGH */ |
break; |
case (MDOC_Tag): |
case 'M': |
/* FALLTHROUGH */ |
dst->unit = SCALE_MM; |
case (MDOC_Hang): |
break; |
/* FALLTHROUGH */ |
case 'm': |
case (MDOC_Inset): |
dst->unit = SCALE_EM; |
/* FALLTHROUGH */ |
break; |
case (MDOC_Diag): |
case 'n': |
/* FALLTHROUGH */ |
dst->unit = SCALE_EN; |
case (MDOC_Item): |
break; |
/* FALLTHROUGH */ |
case 'P': |
case (MDOC_Column): |
dst->unit = SCALE_PC; |
/* FALLTHROUGH */ |
break; |
case (MDOC_Ohang): |
case 'p': |
return(n->args->argv[i].arg); |
dst->unit = SCALE_PT; |
default: |
break; |
break; |
case 'u': |
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dst->unit = SCALE_BU; |
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break; |
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case 'v': |
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dst->unit = SCALE_VS; |
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break; |
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default: |
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endptr--; |
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if (SCALE_MAX == def) |
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return NULL; |
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dst->unit = def; |
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break; |
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} |
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return endptr; |
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} |
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/* |
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* Calculate the abstract widths and decimal positions of columns in a |
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* table. This routine allocates the columns structures then runs over |
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* all rows and cells in the table. The function pointers in "tbl" are |
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* used for the actual width calculations. |
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*/ |
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void |
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tblcalc(struct rofftbl *tbl, const struct tbl_span *sp, |
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size_t offset, size_t rmargin) |
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{ |
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struct roffsu su; |
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const struct tbl_opts *opts; |
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const struct tbl_dat *dp; |
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struct roffcol *col; |
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size_t ewidth, xwidth; |
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int hspans; |
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int icol, maxcol, necol, nxcol, quirkcol; |
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/* |
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* Allocate the master column specifiers. These will hold the |
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* widths and decimal positions for all cells in the column. It |
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* must be freed and nullified by the caller. |
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*/ |
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assert(NULL == tbl->cols); |
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tbl->cols = mandoc_calloc((size_t)sp->opts->cols, |
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sizeof(struct roffcol)); |
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opts = sp->opts; |
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for (maxcol = -1; sp; sp = sp->next) { |
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if (TBL_SPAN_DATA != sp->pos) |
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continue; |
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hspans = 1; |
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/* |
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* Account for the data cells in the layout, matching it |
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* to data cells in the data section. |
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*/ |
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for (dp = sp->first; dp; dp = dp->next) { |
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/* Do not used spanned cells in the calculation. */ |
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if (0 < --hspans) |
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continue; |
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hspans = dp->hspans; |
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if (1 < hspans) |
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continue; |
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icol = dp->layout->col; |
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while (maxcol < icol) |
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tbl->cols[++maxcol].spacing = SIZE_MAX; |
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col = tbl->cols + icol; |
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col->flags |= dp->layout->flags; |
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if (dp->layout->flags & TBL_CELL_WIGN) |
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continue; |
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if (dp->layout->wstr != NULL && |
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dp->layout->width == 0 && |
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a2roffsu(dp->layout->wstr, &su, SCALE_EN) |
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!= NULL) |
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dp->layout->width = |
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(*tbl->sulen)(&su, tbl->arg); |
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if (col->width < dp->layout->width) |
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col->width = dp->layout->width; |
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if (dp->layout->spacing != SIZE_MAX && |
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(col->spacing == SIZE_MAX || |
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col->spacing < dp->layout->spacing)) |
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col->spacing = dp->layout->spacing; |
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tblcalc_data(tbl, col, opts, dp, |
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dp->block == 0 ? 0 : |
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dp->layout->width ? dp->layout->width : |
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rmargin ? (rmargin + sp->opts->cols / 2) |
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/ (sp->opts->cols + 1) : 0); |
} |
} |
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} |
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abort(); |
/* |
/* NOTREACHED */ |
* Align numbers with text. |
} |
* Count columns to equalize and columns to maximize. |
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* Find maximum width of the columns to equalize. |
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* Find total width of the columns *not* to maximize. |
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*/ |
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necol = nxcol = 0; |
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ewidth = xwidth = 0; |
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for (icol = 0; icol <= maxcol; icol++) { |
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col = tbl->cols + icol; |
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if (col->width > col->nwidth) |
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col->decimal += (col->width - col->nwidth) / 2; |
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else |
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col->width = col->nwidth; |
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if (col->spacing == SIZE_MAX || icol == maxcol) |
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col->spacing = 3; |
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if (col->flags & TBL_CELL_EQUAL) { |
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necol++; |
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if (ewidth < col->width) |
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ewidth = col->width; |
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} |
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if (col->flags & TBL_CELL_WMAX) |
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nxcol++; |
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else |
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xwidth += col->width; |
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} |
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int |
/* |
out_a2width(const char *p) |
* Equalize columns, if requested for any of them. |
{ |
* Update total width of the columns not to maximize. |
int i, len; |
*/ |
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if (0 == (len = (int)strlen(p))) |
if (necol) { |
return(0); |
for (icol = 0; icol <= maxcol; icol++) { |
for (i = 0; i < len - 1; i++) |
col = tbl->cols + icol; |
if ( ! isdigit((u_char)p[i])) |
if ( ! (col->flags & TBL_CELL_EQUAL)) |
break; |
continue; |
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if (col->width == ewidth) |
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continue; |
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if (nxcol && rmargin) |
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xwidth += ewidth - col->width; |
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col->width = ewidth; |
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} |
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} |
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if (i == len - 1) |
/* |
if ('n' == p[len - 1] || 'm' == p[len - 1]) |
* If there are any columns to maximize, find the total |
return(atoi(p) + 2); |
* available width, deducting 3n margins between columns. |
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* Distribute the available width evenly. |
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*/ |
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return(len + 2); |
if (nxcol && rmargin) { |
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xwidth += 3*maxcol + |
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(opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ? |
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2 : !!opts->lvert + !!opts->rvert); |
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if (rmargin <= offset + xwidth) |
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return; |
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xwidth = rmargin - offset - xwidth; |
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/* |
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* Emulate a bug in GNU tbl width calculation that |
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* manifests itself for large numbers of x-columns. |
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* Emulating it for 5 x-columns gives identical |
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* behaviour for up to 6 x-columns. |
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*/ |
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if (nxcol == 5) { |
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quirkcol = xwidth % nxcol + 2; |
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if (quirkcol != 3 && quirkcol != 4) |
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quirkcol = -1; |
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} else |
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quirkcol = -1; |
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necol = 0; |
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ewidth = 0; |
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for (icol = 0; icol <= maxcol; icol++) { |
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col = tbl->cols + icol; |
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if ( ! (col->flags & TBL_CELL_WMAX)) |
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continue; |
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col->width = (double)xwidth * ++necol / nxcol |
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- ewidth + 0.4995; |
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if (necol == quirkcol) |
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col->width--; |
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ewidth += col->width; |
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} |
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} |
} |
} |
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static void |
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tblcalc_data(struct rofftbl *tbl, struct roffcol *col, |
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const struct tbl_opts *opts, const struct tbl_dat *dp, size_t mw) |
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{ |
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size_t sz; |
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int |
/* Branch down into data sub-types. */ |
out_a2offs(const char *p, int indent) |
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switch (dp->layout->pos) { |
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case TBL_CELL_HORIZ: |
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case TBL_CELL_DHORIZ: |
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sz = (*tbl->len)(1, tbl->arg); |
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if (col->width < sz) |
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col->width = sz; |
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break; |
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case TBL_CELL_LONG: |
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case TBL_CELL_CENTRE: |
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case TBL_CELL_LEFT: |
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case TBL_CELL_RIGHT: |
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tblcalc_literal(tbl, col, dp, mw); |
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break; |
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case TBL_CELL_NUMBER: |
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tblcalc_number(tbl, col, opts, dp); |
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break; |
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case TBL_CELL_DOWN: |
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break; |
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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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tblcalc_literal(struct rofftbl *tbl, struct roffcol *col, |
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const struct tbl_dat *dp, size_t mw) |
{ |
{ |
int len, i; |
const char *str; /* Beginning of the first line. */ |
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const char *beg; /* Beginning of the current line. */ |
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char *end; /* End of the current line. */ |
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size_t lsz; /* Length of the current line. */ |
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size_t wsz; /* Length of the current word. */ |
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if (0 == strcmp(p, "left")) |
if (dp->string == NULL || *dp->string == '\0') |
return(0); |
return; |
if (0 == strcmp(p, "indent")) |
str = mw ? mandoc_strdup(dp->string) : dp->string; |
return(indent + 1); |
lsz = 0; |
if (0 == strcmp(p, "indent-two")) |
for (beg = str; beg != NULL && *beg != '\0'; beg = end) { |
return((indent + 1) * 2); |
end = mw ? strchr(beg, ' ') : NULL; |
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if (end != NULL) { |
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*end++ = '\0'; |
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while (*end == ' ') |
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end++; |
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} |
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wsz = (*tbl->slen)(beg, tbl->arg); |
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if (mw && lsz && lsz + 1 + wsz <= mw) |
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lsz += 1 + wsz; |
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else |
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lsz = wsz; |
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if (col->width < lsz) |
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col->width = lsz; |
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} |
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if (mw) |
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free((void *)str); |
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} |
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if (0 == (len = (int)strlen(p))) |
static void |
return(0); |
tblcalc_number(struct rofftbl *tbl, struct roffcol *col, |
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const struct tbl_opts *opts, const struct tbl_dat *dp) |
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{ |
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const char *cp, *lastdigit, *lastpoint; |
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size_t intsz, totsz; |
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char buf[2]; |
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for (i = 0; i < len - 1; i++) |
if (dp->string == NULL || *dp->string == '\0') |
if ( ! isdigit((u_char)p[i])) |
return; |
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/* |
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* Find the last digit and |
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* the last decimal point that is adjacent to a digit. |
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* The alignment indicator "\&" overrides everything. |
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*/ |
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lastdigit = lastpoint = NULL; |
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for (cp = dp->string; cp[0] != '\0'; cp++) { |
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if (cp[0] == '\\' && cp[1] == '&') { |
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lastdigit = lastpoint = cp; |
break; |
break; |
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} else if (cp[0] == opts->decimal && |
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(isdigit((unsigned char)cp[1]) || |
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(cp > dp->string && isdigit((unsigned char)cp[-1])))) |
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lastpoint = cp; |
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else if (isdigit((unsigned char)cp[0])) |
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lastdigit = cp; |
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} |
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if (i == len - 1) |
/* Not a number, treat as a literal string. */ |
if ('n' == p[len - 1] || 'm' == p[len - 1]) |
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return(atoi(p)); |
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return(len); |
totsz = (*tbl->slen)(dp->string, tbl->arg); |
} |
if (lastdigit == NULL) { |
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if (col->width < totsz) |
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col->width = totsz; |
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return; |
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} |
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/* Measure the width of the integer part. */ |
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if (lastpoint == NULL) |
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lastpoint = lastdigit + 1; |
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intsz = 0; |
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buf[1] = '\0'; |
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for (cp = dp->string; cp < lastpoint; cp++) { |
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buf[0] = cp[0]; |
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intsz += (*tbl->slen)(buf, tbl->arg); |
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} |
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/* |
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* If this number has more integer digits than all numbers |
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* seen on earlier lines, shift them all to the right. |
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* If it has fewer, shift this number to the right. |
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*/ |
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if (intsz > col->decimal) { |
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col->nwidth += intsz - col->decimal; |
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col->decimal = intsz; |
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} else |
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totsz += col->decimal - intsz; |
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/* Update the maximum total width seen so far. */ |
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if (totsz > col->nwidth) |
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col->nwidth = totsz; |
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} |