version 1.4, 2009/10/09 06:54:11 |
version 1.57, 2014/12/23 13:48:57 |
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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 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 <ctype.h> |
#include <assert.h> |
#include <stdio.h> |
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#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include "mandoc_aux.h" |
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#include "mandoc.h" |
#include "out.h" |
#include "out.h" |
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static void tblcalc_data(struct rofftbl *, struct roffcol *, |
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const struct tbl_opts *, const struct tbl_dat *); |
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static void tblcalc_literal(struct rofftbl *, struct roffcol *, |
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const struct tbl_dat *); |
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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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* Convert a `scaling unit' to a consistent form, or fail. Scaling |
/* |
* units are documented in groff.7, which stipulates the following: |
* Parse the *src string and store a scaling unit into *dst. |
* |
* If the string doesn't specify the unit, use the default. |
* (1) A scaling unit is a signed/unsigned integer/float with or |
* If no default is specified, fail. |
* without a unit. |
* Return 2 on complete success, 1 when a conversion was done, |
* |
* but there was trailing garbage, and 0 on total failure. |
* (2) The following units exist: |
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* c Centimeter |
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* i Inch |
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* P Pica = 1/6 inch |
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* p Point = 1/72 inch |
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* m Em = the font size in points (width of letter m) |
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* M 100th of an Em |
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* n En = Em/2 |
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* u Basic unit for actual output device |
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* v Vertical line space in basic units scaled point = |
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* 1/sizescale of a point (defined in font DESC file) |
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* f Scale by 65536. |
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*/ |
*/ |
int |
int |
a2roffsu(const char *src, struct roffsu *dst) |
a2roffsu(const char *src, struct roffsu *dst, enum roffscale def) |
{ |
{ |
char buf[BUFSIZ], hasd; |
char *endptr; |
int i; |
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enum roffscale unit; |
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i = hasd = 0; |
dst->unit = def == SCALE_MAX ? SCALE_BU : def; |
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dst->scale = strtod(src, &endptr); |
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if (endptr == src) |
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return(0); |
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switch (*src) { |
switch (*endptr++) { |
case ('+'): |
case 'c': |
src++; |
dst->unit = SCALE_CM; |
break; |
break; |
case ('-'): |
case 'i': |
buf[i++] = *src++; |
dst->unit = SCALE_IN; |
break; |
break; |
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case 'f': |
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dst->unit = SCALE_FS; |
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break; |
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case 'M': |
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dst->unit = SCALE_MM; |
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break; |
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case 'm': |
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dst->unit = SCALE_EM; |
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break; |
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case 'n': |
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dst->unit = SCALE_EN; |
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break; |
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case 'P': |
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dst->unit = SCALE_PC; |
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break; |
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case 'p': |
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dst->unit = SCALE_PT; |
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break; |
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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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case '\0': |
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endptr--; |
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/* FALLTHROUGH */ |
default: |
default: |
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if (SCALE_MAX == def) |
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return(0); |
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dst->unit = def; |
break; |
break; |
} |
} |
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while (i < BUFSIZ) { |
return(*endptr == '\0' ? 2 : 1); |
if ( ! isdigit((u_char)*src)) { |
} |
if ('.' != *src) |
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break; |
/* |
else if (hasd) |
* Calculate the abstract widths and decimal positions of columns in a |
break; |
* table. This routine allocates the columns structures then runs over |
else |
* all rows and cells in the table. The function pointers in "tbl" are |
hasd = 1; |
* 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 totalwidth) |
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{ |
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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 spans; |
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int icol, maxcol, necol, nxcol; |
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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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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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spans = 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 < --spans) |
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continue; |
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spans = dp->spans; |
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if (1 < spans) |
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continue; |
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icol = dp->layout->head->ident; |
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if (maxcol < icol) |
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maxcol = icol; |
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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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tblcalc_data(tbl, col, sp->opts, dp); |
} |
} |
buf[i++] = *src++; |
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} |
} |
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if (BUFSIZ == i || (*src && *(src + 1))) |
/* |
return(0); |
* 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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buf[i] = '\0'; |
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->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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switch (*src) { |
/* |
case ('c'): |
* Equalize columns, if requested for any of them. |
unit = SCALE_CM; |
* Update total width of the columns not to maximize. |
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*/ |
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if (necol) { |
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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_EQUAL)) |
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continue; |
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if (col->width == ewidth) |
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continue; |
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if (nxcol && totalwidth) |
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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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/* |
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* If there are any columns to maximize, find the total |
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* available width, deducting 3n margins between columns. |
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* Distribute the available width evenly. |
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*/ |
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if (nxcol && totalwidth) { |
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xwidth = totalwidth - 3*maxcol - xwidth; |
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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 = xwidth / nxcol--; |
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xwidth -= col->width; |
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} |
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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) |
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{ |
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size_t sz; |
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/* Branch down into data sub-types. */ |
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switch (dp->layout->pos) { |
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case TBL_CELL_HORIZ: |
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/* FALLTHROUGH */ |
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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; |
break; |
break; |
case ('i'): |
case TBL_CELL_LONG: |
unit = SCALE_IN; |
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break; |
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case ('P'): |
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unit = SCALE_PC; |
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break; |
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case ('p'): |
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unit = SCALE_PT; |
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break; |
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case ('f'): |
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unit = SCALE_FS; |
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break; |
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case ('v'): |
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unit = SCALE_VS; |
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break; |
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case ('m'): |
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unit = SCALE_EM; |
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break; |
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case ('\0'): |
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/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case ('u'): |
case TBL_CELL_CENTRE: |
unit = SCALE_BU; |
/* FALLTHROUGH */ |
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case TBL_CELL_LEFT: |
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/* FALLTHROUGH */ |
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case TBL_CELL_RIGHT: |
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tblcalc_literal(tbl, col, dp); |
break; |
break; |
case ('M'): |
case TBL_CELL_NUMBER: |
unit = SCALE_MM; |
tblcalc_number(tbl, col, opts, dp); |
break; |
break; |
case ('n'): |
case TBL_CELL_DOWN: |
unit = SCALE_EN; |
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break; |
break; |
default: |
default: |
return(0); |
abort(); |
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/* NOTREACHED */ |
} |
} |
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} |
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if ((dst->scale = atof(buf)) < 0) |
static void |
dst->scale = 0; |
tblcalc_literal(struct rofftbl *tbl, struct roffcol *col, |
dst->unit = unit; |
const struct tbl_dat *dp) |
dst->pt = hasd; |
{ |
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size_t sz; |
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const char *str; |
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return(1); |
str = dp->string ? dp->string : ""; |
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sz = (*tbl->slen)(str, tbl->arg); |
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if (col->width < sz) |
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col->width = sz; |
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} |
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static void |
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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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int i; |
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size_t sz, psz, ssz, d; |
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const char *str; |
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char *cp; |
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char buf[2]; |
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/* |
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* First calculate number width and decimal place (last + 1 for |
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* non-decimal numbers). If the stored decimal is subsequent to |
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* ours, make our size longer by that difference |
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* (right-"shifting"); similarly, if ours is subsequent the |
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* stored, then extend the stored size by the difference. |
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* Finally, re-assign the stored values. |
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*/ |
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str = dp->string ? dp->string : ""; |
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sz = (*tbl->slen)(str, tbl->arg); |
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/* FIXME: TBL_DATA_HORIZ et al.? */ |
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buf[0] = opts->decimal; |
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buf[1] = '\0'; |
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psz = (*tbl->slen)(buf, tbl->arg); |
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if (NULL != (cp = strrchr(str, opts->decimal))) { |
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buf[1] = '\0'; |
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for (ssz = 0, i = 0; cp != &str[i]; i++) { |
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buf[0] = str[i]; |
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ssz += (*tbl->slen)(buf, tbl->arg); |
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} |
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d = ssz + psz; |
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} else |
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d = sz + psz; |
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/* Adjust the settings for this column. */ |
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if (col->decimal > d) { |
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sz += col->decimal - d; |
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d = col->decimal; |
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} else |
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col->width += d - col->decimal; |
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if (sz > col->width) |
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col->width = sz; |
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if (d > col->decimal) |
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col->decimal = d; |
} |
} |