version 1.11, 2009/11/12 08:21:05 |
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> |
#include <stdio.h> |
#include <stdint.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <time.h> |
#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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/* See a2roffdeco(). */ |
static void tblcalc_data(struct rofftbl *, struct roffcol *, |
#define C2LIM(c, l) do { \ |
const struct tbl_opts *, const struct tbl_dat *, |
(l) = 1; \ |
size_t); |
if ('[' == (c) || '\'' == (c)) \ |
static void tblcalc_literal(struct rofftbl *, struct roffcol *, |
(l) = 0; \ |
const struct tbl_dat *, size_t); |
else if ('(' == (c)) \ |
static void tblcalc_number(struct rofftbl *, struct roffcol *, |
(l) = 2; } \ |
const struct tbl_opts *, const struct tbl_dat *); |
while (/* CONSTCOND */ 0) |
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/* See a2roffdeco(). */ |
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#define C2TERM(c, t) do { \ |
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(t) = 0; \ |
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if ('\'' == (c)) \ |
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(t) = 1; \ |
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else if ('[' == (c)) \ |
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(t) = 2; \ |
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else if ('(' == (c)) \ |
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(t) = 3; } \ |
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while (/* CONSTCOND */ 0) |
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#ifdef __linux__ |
/* |
extern size_t strlcat(char *, const char *, size_t); |
* Parse the *src string and store a scaling unit into *dst. |
#endif |
* If the string doesn't specify the unit, use the default. |
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* If no default is specified, fail. |
/* |
* Return a pointer to the byte after the last byte used, |
* Convert a `scaling unit' to a consistent form, or fail. Scaling |
* or NULL on total failure. |
* units are documented in groff.7, mdoc.7, man.7. |
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*/ |
*/ |
int |
const char * |
a2roffsu(const char *src, struct roffsu *dst, enum roffscale def) |
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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if ('\0' == *src) |
dst->unit = def == SCALE_MAX ? SCALE_BU : def; |
return(0); |
dst->scale = strtod(src, &endptr); |
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if (endptr == src) |
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return NULL; |
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i = hasd = 0; |
switch (*endptr++) { |
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case 'c': |
switch (*src) { |
dst->unit = SCALE_CM; |
case ('+'): |
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src++; |
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break; |
break; |
case ('-'): |
case 'i': |
buf[i++] = *src++; |
dst->unit = SCALE_IN; |
break; |
break; |
default: |
case 'f': |
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dst->unit = SCALE_FS; |
break; |
break; |
} |
case 'M': |
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dst->unit = SCALE_MM; |
if ('\0' == *src) |
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return(0); |
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while (i < BUFSIZ) { |
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if ( ! isdigit((u_char)*src)) { |
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if ('.' != *src) |
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break; |
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else if (hasd) |
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break; |
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else |
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hasd = 1; |
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} |
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buf[i++] = *src++; |
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} |
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if (BUFSIZ == i || (*src && *(src + 1))) |
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return(0); |
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buf[i] = '\0'; |
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switch (*src) { |
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case ('c'): |
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unit = SCALE_CM; |
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break; |
break; |
case ('i'): |
case 'm': |
unit = SCALE_IN; |
dst->unit = SCALE_EM; |
break; |
break; |
case ('P'): |
case 'n': |
unit = SCALE_PC; |
dst->unit = SCALE_EN; |
break; |
break; |
case ('p'): |
case 'P': |
unit = SCALE_PT; |
dst->unit = SCALE_PC; |
break; |
break; |
case ('f'): |
case 'p': |
unit = SCALE_FS; |
dst->unit = SCALE_PT; |
break; |
break; |
case ('v'): |
case 'u': |
unit = SCALE_VS; |
dst->unit = SCALE_BU; |
break; |
break; |
case ('m'): |
case 'v': |
unit = SCALE_EM; |
dst->unit = SCALE_VS; |
break; |
break; |
case ('\0'): |
default: |
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endptr--; |
if (SCALE_MAX == def) |
if (SCALE_MAX == def) |
return(0); |
return NULL; |
unit = SCALE_BU; |
dst->unit = def; |
break; |
break; |
case ('u'): |
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unit = SCALE_BU; |
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break; |
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case ('M'): |
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unit = SCALE_MM; |
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break; |
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case ('n'): |
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unit = SCALE_EN; |
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break; |
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default: |
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return(0); |
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} |
} |
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return endptr; |
if ((dst->scale = atof(buf)) < 0) |
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dst->scale = 0; |
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dst->unit = unit; |
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dst->pt = hasd; |
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return(1); |
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} |
} |
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/* |
/* |
* Correctly writes the time in nroff form, which differs from standard |
* Calculate the abstract widths and decimal positions of columns in a |
* form in that a space isn't printed in lieu of the extra %e field for |
* table. This routine allocates the columns structures then runs over |
* single-digit dates. |
* all rows and cells in the table. The function pointers in "tbl" are |
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* used for the actual width calculations. |
*/ |
*/ |
void |
void |
time2a(time_t t, char *dst, size_t sz) |
tblcalc(struct rofftbl *tbl, const struct tbl_span *sp, |
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size_t offset, size_t rmargin) |
{ |
{ |
struct tm tm; |
struct roffsu su; |
char buf[5]; |
const struct tbl_opts *opts; |
char *p; |
const struct tbl_dat *dp; |
size_t nsz; |
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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assert(sz > 1); |
/* |
localtime_r(&t, &tm); |
* 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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p = dst; |
assert(NULL == tbl->cols); |
nsz = 0; |
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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dst[0] = '\0'; |
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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} |
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if (0 == (nsz = strftime(p, sz, "%B ", &tm))) |
/* |
return; |
* Align numbers with text. |
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* 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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p += (int)nsz; |
necol = nxcol = 0; |
sz -= nsz; |
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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if (0 == strftime(buf, sizeof(buf), "%e, ", &tm)) |
/* |
return; |
* Equalize columns, if requested for any of them. |
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* Update total width of the columns not to maximize. |
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*/ |
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nsz = strlcat(p, buf + (' ' == buf[0] ? 1 : 0), sz); |
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 && 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 (nsz >= sz) |
/* |
return; |
* 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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p += (int)nsz; |
if (nxcol && rmargin) { |
sz -= nsz; |
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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(void)strftime(p, sz, "%Y", &tm); |
/* |
} |
* 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; |
* Returns length of parsed string (the leading "\" should NOT be |
ewidth = 0; |
* included). This can be zero if the current character is the nil |
for (icol = 0; icol <= maxcol; icol++) { |
* terminator. "d" is set to the type of parsed decorator, which may |
col = tbl->cols + icol; |
* have an adjoining "word" of size "sz" (e.g., "(ab" -> "ab", 2). |
if ( ! (col->flags & TBL_CELL_WMAX)) |
*/ |
continue; |
int |
col->width = (double)xwidth * ++necol / nxcol |
a2roffdeco(enum roffdeco *d, |
- ewidth + 0.4995; |
const char **word, size_t *sz) |
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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} |
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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) |
{ |
{ |
int j, type, term, lim; |
size_t sz; |
const char *wp, *sp; |
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*d = DECO_NONE; |
/* Branch down into data sub-types. */ |
wp = *word; |
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type = 1; |
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switch (*wp) { |
switch (dp->layout->pos) { |
case ('\0'): |
case TBL_CELL_HORIZ: |
return(0); |
case TBL_CELL_DHORIZ: |
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sz = (*tbl->len)(1, tbl->arg); |
case ('('): |
if (col->width < sz) |
if ('\0' == *(++wp)) |
col->width = sz; |
return(1); |
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if ('\0' == *(wp + 1)) |
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return(2); |
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*d = DECO_SPECIAL; |
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*sz = 2; |
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*word = wp; |
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return(3); |
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case ('*'): |
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switch (*(++wp)) { |
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case ('\0'): |
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return(1); |
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case ('('): |
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if ('\0' == *(++wp)) |
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return(2); |
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if ('\0' == *(wp + 1)) |
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return(3); |
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*d = DECO_RESERVED; |
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*sz = 2; |
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*word = wp; |
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return(4); |
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case ('['): |
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type = 0; |
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break; |
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default: |
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*d = DECO_RESERVED; |
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*sz = 1; |
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*word = wp; |
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return(2); |
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} |
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break; |
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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case ('s'): |
static void |
sp = wp; |
tblcalc_literal(struct rofftbl *tbl, struct roffcol *col, |
if ('\0' == *(++wp)) |
const struct tbl_dat *dp, size_t mw) |
return(1); |
{ |
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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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C2LIM(*wp, lim); |
if (dp->string == NULL || *dp->string == '\0') |
C2TERM(*wp, term); |
return; |
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str = mw ? mandoc_strdup(dp->string) : dp->string; |
if (term) |
lsz = 0; |
wp++; |
for (beg = str; beg != NULL && *beg != '\0'; beg = end) { |
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end = mw ? strchr(beg, ' ') : NULL; |
*word = wp; |
if (end != NULL) { |
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*end++ = '\0'; |
if (*wp == '+' || *wp == '-') |
while (*end == ' ') |
++wp; |
end++; |
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switch (*wp) { |
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case ('\''): |
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/* FALLTHROUGH */ |
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case ('['): |
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/* FALLTHROUGH */ |
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case ('('): |
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if (term) |
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return((int)(wp - sp)); |
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C2LIM(*wp, lim); |
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C2TERM(*wp, term); |
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wp++; |
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break; |
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default: |
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break; |
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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 ( ! isdigit((u_char)*wp)) |
static void |
return((int)(wp - sp)); |
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 (j = 0; isdigit((u_char)*wp); j++) { |
if (dp->string == NULL || *dp->string == '\0') |
if (lim && j >= lim) |
return; |
break; |
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++wp; |
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} |
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if (term && term < 3) { |
/* |
if (1 == term && *wp != '\'') |
* Find the last digit and |
return((int)(wp - sp)); |
* the last decimal point that is adjacent to a digit. |
if (2 == term && *wp != ']') |
* The alignment indicator "\&" overrides everything. |
return((int)(wp - sp)); |
*/ |
++wp; |
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} |
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*d = DECO_SIZE; |
lastdigit = lastpoint = NULL; |
return((int)(wp - sp)); |
for (cp = dp->string; cp[0] != '\0'; cp++) { |
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if (cp[0] == '\\' && cp[1] == '&') { |
case ('f'): |
lastdigit = lastpoint = cp; |
switch (*(++wp)) { |
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case ('\0'): |
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return(1); |
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case ('3'): |
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/* FALLTHROUGH */ |
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case ('B'): |
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*d = DECO_BOLD; |
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break; |
break; |
case ('2'): |
} else if (cp[0] == opts->decimal && |
/* FALLTHROUGH */ |
(isdigit((unsigned char)cp[1]) || |
case ('I'): |
(cp > dp->string && isdigit((unsigned char)cp[-1])))) |
*d = DECO_ITALIC; |
lastpoint = cp; |
break; |
else if (isdigit((unsigned char)cp[0])) |
case ('P'): |
lastdigit = cp; |
*d = DECO_PREVIOUS; |
} |
break; |
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case ('1'): |
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/* FALLTHROUGH */ |
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case ('R'): |
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*d = DECO_ROMAN; |
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break; |
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default: |
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break; |
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} |
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return(2); |
/* Not a number, treat as a literal string. */ |
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case ('['): |
totsz = (*tbl->slen)(dp->string, tbl->arg); |
break; |
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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case ('c'): |
/* Measure the width of the integer part. */ |
*d = DECO_NOSPACE; |
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*sz = 1; |
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return(1); |
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default: |
if (lastpoint == NULL) |
*d = DECO_SPECIAL; |
lastpoint = lastdigit + 1; |
*word = wp; |
intsz = 0; |
*sz = 1; |
buf[1] = '\0'; |
return(1); |
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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*word = ++wp; |
/* |
for (j = 0; *wp && ']' != *wp; wp++, j++) |
* If this number has more integer digits than all numbers |
/* Loop... */ ; |
* 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 ('\0' == *wp) |
if (intsz > col->decimal) { |
return(j + 1); |
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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*d = type ? DECO_SPECIAL : DECO_RESERVED; |
/* Update the maximum total width seen so far. */ |
*sz = (size_t)j; |
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return (j + 2); |
if (totsz > col->nwidth) |
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col->nwidth = totsz; |
} |
} |