-/* $Id: out.c,v 1.54 2014/12/04 02:05:42 schwarze Exp $ */
+/* $Id: out.c,v 1.70 2017/06/27 18:25:02 schwarze Exp $ */
/*
* Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2011, 2014 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011, 2014, 2015, 2017 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
#include <sys/types.h>
#include <assert.h>
-#include <ctype.h>
-#include <stdio.h>
+#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "out.h"
static void tblcalc_data(struct rofftbl *, struct roffcol *,
- const struct tbl_opts *, const struct tbl_dat *);
+ const struct tbl_opts *, const struct tbl_dat *,
+ size_t);
static void tblcalc_literal(struct rofftbl *, struct roffcol *,
- const struct tbl_dat *);
+ const struct tbl_dat *, size_t);
static void tblcalc_number(struct rofftbl *, struct roffcol *,
const struct tbl_opts *, const struct tbl_dat *);
/*
- * Convert a `scaling unit' to a consistent form, or fail. Scaling
- * units are documented in groff.7, mdoc.7, man.7.
+ * Parse the *src string and store a scaling unit into *dst.
+ * If the string doesn't specify the unit, use the default.
+ * If no default is specified, fail.
+ * Return a pointer to the byte after the last byte used,
+ * or NULL on total failure.
*/
-int
+const char *
a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
{
- char buf[BUFSIZ], hasd;
- int i;
- enum roffscale unit;
-
- if ('\0' == *src)
- return(0);
-
- i = hasd = 0;
-
- switch (*src) {
- case '+':
- src++;
- break;
- case '-':
- buf[i++] = *src++;
- break;
- default:
- break;
- }
-
- if ('\0' == *src)
- return(0);
-
- while (i < BUFSIZ) {
- if ( ! isdigit((unsigned char)*src)) {
- if ('.' != *src)
- break;
- else if (hasd)
- break;
- else
- hasd = 1;
- }
- buf[i++] = *src++;
- }
+ char *endptr;
- if (BUFSIZ == i || (*src && *(src + 1)))
- return(0);
+ dst->unit = def == SCALE_MAX ? SCALE_BU : def;
+ dst->scale = strtod(src, &endptr);
+ if (endptr == src)
+ return NULL;
- buf[i] = '\0';
-
- switch (*src) {
+ switch (*endptr++) {
case 'c':
- unit = SCALE_CM;
+ dst->unit = SCALE_CM;
break;
case 'i':
- unit = SCALE_IN;
- break;
- case 'P':
- unit = SCALE_PC;
- break;
- case 'p':
- unit = SCALE_PT;
+ dst->unit = SCALE_IN;
break;
case 'f':
- unit = SCALE_FS;
+ dst->unit = SCALE_FS;
break;
- case 'v':
- unit = SCALE_VS;
+ case 'M':
+ dst->unit = SCALE_MM;
break;
case 'm':
- unit = SCALE_EM;
+ dst->unit = SCALE_EM;
break;
- case '\0':
- if (SCALE_MAX == def)
- return(0);
- unit = def;
+ case 'n':
+ dst->unit = SCALE_EN;
break;
- case 'u':
- unit = SCALE_BU;
+ case 'P':
+ dst->unit = SCALE_PC;
break;
- case 'M':
- unit = SCALE_MM;
+ case 'p':
+ dst->unit = SCALE_PT;
break;
- case 'n':
- unit = SCALE_EN;
+ case 'u':
+ dst->unit = SCALE_BU;
+ break;
+ case 'v':
+ dst->unit = SCALE_VS;
break;
default:
- return(0);
+ endptr--;
+ if (SCALE_MAX == def)
+ return NULL;
+ dst->unit = def;
+ break;
}
-
- /* FIXME: do this in the caller. */
- if ((dst->scale = atof(buf)) < 0.0)
- dst->scale = 0.0;
- dst->unit = unit;
- return(1);
+ return endptr;
}
/*
*/
void
tblcalc(struct rofftbl *tbl, const struct tbl_span *sp,
- size_t totalwidth)
+ size_t offset, size_t rmargin)
{
+ struct roffsu su;
+ const struct tbl_opts *opts;
const struct tbl_dat *dp;
struct roffcol *col;
size_t ewidth, xwidth;
int spans;
- int icol, maxcol, necol, nxcol;
+ int icol, maxcol, necol, nxcol, quirkcol;
/*
* Allocate the master column specifiers. These will hold the
assert(NULL == tbl->cols);
tbl->cols = mandoc_calloc((size_t)sp->opts->cols,
sizeof(struct roffcol));
+ opts = sp->opts;
for (maxcol = -1; sp; sp = sp->next) {
if (TBL_SPAN_DATA != sp->pos)
spans = dp->spans;
if (1 < spans)
continue;
- icol = dp->layout->head->ident;
- if (maxcol < icol)
- maxcol = icol;
+ icol = dp->layout->col;
+ while (maxcol < icol)
+ tbl->cols[++maxcol].spacing = SIZE_MAX;
col = tbl->cols + icol;
col->flags |= dp->layout->flags;
if (dp->layout->flags & TBL_CELL_WIGN)
continue;
- tblcalc_data(tbl, col, sp->opts, dp);
+ if (dp->layout->wstr != NULL &&
+ dp->layout->width == 0 &&
+ a2roffsu(dp->layout->wstr, &su, SCALE_EN)
+ != NULL)
+ dp->layout->width =
+ (*tbl->sulen)(&su, tbl->arg);
+ if (col->width < dp->layout->width)
+ col->width = dp->layout->width;
+ if (dp->layout->spacing != SIZE_MAX &&
+ (col->spacing == SIZE_MAX ||
+ col->spacing < dp->layout->spacing))
+ col->spacing = dp->layout->spacing;
+ tblcalc_data(tbl, col, opts, dp,
+ dp->block == 0 ? 0 :
+ dp->layout->width ? dp->layout->width :
+ rmargin ? (rmargin + sp->opts->cols / 2)
+ / (sp->opts->cols + 1) : 0);
}
}
ewidth = xwidth = 0;
for (icol = 0; icol <= maxcol; icol++) {
col = tbl->cols + icol;
+ if (col->spacing == SIZE_MAX || icol == maxcol)
+ col->spacing = 3;
if (col->flags & TBL_CELL_EQUAL) {
necol++;
if (ewidth < col->width)
continue;
if (col->width == ewidth)
continue;
- if (nxcol && totalwidth)
+ if (nxcol && rmargin)
xwidth += ewidth - col->width;
col->width = ewidth;
}
* Distribute the available width evenly.
*/
- if (nxcol && totalwidth) {
- xwidth = totalwidth - 3*maxcol - xwidth;
+ if (nxcol && rmargin) {
+ xwidth += 3*maxcol +
+ (opts->opts & (TBL_OPT_BOX | TBL_OPT_DBOX) ?
+ 2 : !!opts->lvert + !!opts->rvert);
+ if (rmargin <= offset + xwidth)
+ return;
+ xwidth = rmargin - offset - xwidth;
+
+ /*
+ * Emulate a bug in GNU tbl width calculation that
+ * manifests itself for large numbers of x-columns.
+ * Emulating it for 5 x-columns gives identical
+ * behaviour for up to 6 x-columns.
+ */
+
+ if (nxcol == 5) {
+ quirkcol = xwidth % nxcol + 2;
+ if (quirkcol != 3 && quirkcol != 4)
+ quirkcol = -1;
+ } else
+ quirkcol = -1;
+
+ necol = 0;
+ ewidth = 0;
for (icol = 0; icol <= maxcol; icol++) {
col = tbl->cols + icol;
if ( ! (col->flags & TBL_CELL_WMAX))
continue;
- col->width = xwidth / nxcol--;
- xwidth -= col->width;
+ col->width = (double)xwidth * ++necol / nxcol
+ - ewidth + 0.4995;
+ if (necol == quirkcol)
+ col->width--;
+ ewidth += col->width;
}
}
}
static void
tblcalc_data(struct rofftbl *tbl, struct roffcol *col,
- const struct tbl_opts *opts, const struct tbl_dat *dp)
+ const struct tbl_opts *opts, const struct tbl_dat *dp, size_t mw)
{
size_t sz;
switch (dp->layout->pos) {
case TBL_CELL_HORIZ:
- /* FALLTHROUGH */
case TBL_CELL_DHORIZ:
sz = (*tbl->len)(1, tbl->arg);
if (col->width < sz)
col->width = sz;
break;
case TBL_CELL_LONG:
- /* FALLTHROUGH */
case TBL_CELL_CENTRE:
- /* FALLTHROUGH */
case TBL_CELL_LEFT:
- /* FALLTHROUGH */
case TBL_CELL_RIGHT:
- tblcalc_literal(tbl, col, dp);
+ tblcalc_literal(tbl, col, dp, mw);
break;
case TBL_CELL_NUMBER:
tblcalc_number(tbl, col, opts, dp);
break;
default:
abort();
- /* NOTREACHED */
}
}
static void
tblcalc_literal(struct rofftbl *tbl, struct roffcol *col,
- const struct tbl_dat *dp)
+ const struct tbl_dat *dp, size_t mw)
{
- size_t sz;
- const char *str;
-
- str = dp->string ? dp->string : "";
- sz = (*tbl->slen)(str, tbl->arg);
-
- if (col->width < sz)
- col->width = sz;
+ const char *str; /* Beginning of the first line. */
+ const char *beg; /* Beginning of the current line. */
+ char *end; /* End of the current line. */
+ size_t lsz; /* Length of the current line. */
+ size_t wsz; /* Length of the current word. */
+
+ if (dp->string == NULL || *dp->string == '\0')
+ return;
+ str = mw ? mandoc_strdup(dp->string) : dp->string;
+ lsz = 0;
+ for (beg = str; beg != NULL && *beg != '\0'; beg = end) {
+ end = mw ? strchr(beg, ' ') : NULL;
+ if (end != NULL) {
+ *end++ = '\0';
+ while (*end == ' ')
+ end++;
+ }
+ wsz = (*tbl->slen)(beg, tbl->arg);
+ if (mw && lsz && lsz + 1 + wsz <= mw)
+ lsz += 1 + wsz;
+ else
+ lsz = wsz;
+ if (col->width < lsz)
+ col->width = lsz;
+ }
+ if (mw)
+ free((void *)str);
}
static void
git.ckatri.com / mandoc.git / blobdiff