-/* $Id: out.c,v 1.3 2009/10/07 12:35:24 kristaps Exp $ */
+/* $Id: out.c,v 1.39 2011/03/17 08:49:34 kristaps Exp $ */
/*
- * Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011 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
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
#include <sys/types.h>
+#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "mandoc.h"
#include "out.h"
+static void tblcalc_data(struct rofftbl *, struct roffcol *,
+ const struct tbl *, const struct tbl_dat *);
+static void tblcalc_literal(struct rofftbl *, struct roffcol *,
+ const struct tbl_dat *);
+static void tblcalc_number(struct rofftbl *, struct roffcol *,
+ const struct tbl *, const struct tbl_dat *);
/*
* Convert a `scaling unit' to a consistent form, or fail. Scaling
- * units are documented in groff.7, which stipulates the following:
- *
- * (1) A scaling unit is a signed/unsigned integer/float with or
- * without a unit.
- *
- * (2) The following units exist:
- * c Centimeter
- * i Inch
- * P Pica = 1/6 inch
- * p Point = 1/72 inch
- * m Em = the font size in points (width of letter m)
- * M 100th of an Em
- * n En = Em/2
- * u Basic unit for actual output device
- * v Vertical line space in basic units scaled point =
- * 1/sizescale of a point (defined in font DESC file)
- * f Scale by 65536.
+ * units are documented in groff.7, mdoc.7, man.7.
*/
int
-a2roffsu(const char *src, struct roffsu *dst)
+a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
{
- char buf[BUFSIZ], *p;
+ char buf[BUFSIZ], hasd;
int i;
enum roffscale unit;
- for (p = buf, i = 0; i < BUFSIZ && isdigit((u_char)*src); i++)
- *p++ = *src++;
+ 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((u_char)*src)) {
+ if ('.' != *src)
+ break;
+ else if (hasd)
+ break;
+ else
+ hasd = 1;
+ }
+ buf[i++] = *src++;
+ }
if (BUFSIZ == i || (*src && *(src + 1)))
return(0);
- *p = '\0';
+ buf[i] = '\0';
switch (*src) {
case ('c'):
unit = SCALE_EM;
break;
case ('\0'):
- /* FALLTHROUGH */
+ if (SCALE_MAX == def)
+ return(0);
+ unit = SCALE_BU;
+ break;
case ('u'):
unit = SCALE_BU;
break;
return(0);
}
- if ((dst->scale = atoi(buf)) < 0)
+ /* FIXME: do this in the caller. */
+ if ((dst->scale = atof(buf)) < 0)
dst->scale = 0;
dst->unit = unit;
return(1);
}
+
+
+/*
+ * Correctly writes the time in nroff form, which differs from standard
+ * form in that a space isn't printed in lieu of the extra %e field for
+ * single-digit dates.
+ */
+void
+time2a(time_t t, char *dst, size_t sz)
+{
+ struct tm tm;
+ char buf[5];
+ char *p;
+ size_t nsz;
+
+ assert(sz > 1);
+ localtime_r(&t, &tm);
+
+ p = dst;
+ nsz = 0;
+
+ dst[0] = '\0';
+
+ if (0 == (nsz = strftime(p, sz, "%B ", &tm)))
+ return;
+
+ p += (int)nsz;
+ sz -= nsz;
+
+ if (0 == strftime(buf, sizeof(buf), "%e, ", &tm))
+ return;
+
+ nsz = strlcat(p, buf + (' ' == buf[0] ? 1 : 0), sz);
+
+ if (nsz >= sz)
+ return;
+
+ p += (int)nsz;
+ sz -= nsz;
+
+ (void)strftime(p, sz, "%Y", &tm);
+}
+
+
+int
+a2roffdeco(enum roffdeco *d, const char **word, size_t *sz)
+{
+ int i, j, lim;
+ char term, c;
+ const char *wp;
+ enum roffdeco dd;
+
+ *d = DECO_NONE;
+ lim = i = 0;
+ term = '\0';
+ wp = *word;
+
+ switch ((c = wp[i++])) {
+ case ('('):
+ *d = DECO_SPECIAL;
+ lim = 2;
+ break;
+ case ('F'):
+ /* FALLTHROUGH */
+ case ('f'):
+ *d = 'F' == c ? DECO_FFONT : DECO_FONT;
+
+ switch (wp[i++]) {
+ case ('('):
+ lim = 2;
+ break;
+ case ('['):
+ term = ']';
+ break;
+ case ('3'):
+ /* FALLTHROUGH */
+ case ('B'):
+ *d = DECO_BOLD;
+ return(i);
+ case ('2'):
+ /* FALLTHROUGH */
+ case ('I'):
+ *d = DECO_ITALIC;
+ return(i);
+ case ('P'):
+ *d = DECO_PREVIOUS;
+ return(i);
+ case ('1'):
+ /* FALLTHROUGH */
+ case ('R'):
+ *d = DECO_ROMAN;
+ return(i);
+ default:
+ i--;
+ lim = 1;
+ break;
+ }
+ break;
+ case ('k'):
+ /* FALLTHROUGH */
+ case ('M'):
+ /* FALLTHROUGH */
+ case ('m'):
+ /* FALLTHROUGH */
+ case ('*'):
+ if ('*' == c)
+ *d = DECO_RESERVED;
+
+ switch (wp[i++]) {
+ case ('('):
+ lim = 2;
+ break;
+ case ('['):
+ term = ']';
+ break;
+ default:
+ i--;
+ lim = 1;
+ break;
+ }
+ break;
+
+ case ('N'):
+
+ /*
+ * Sequence of characters: backslash, 'N' (i = 0),
+ * starting delimiter (i = 1), character number (i = 2).
+ */
+
+ *word = wp + 2;
+ *sz = 0;
+
+ /*
+ * Cannot use a digit as a starting delimiter;
+ * but skip the digit anyway.
+ */
+
+ if (isdigit((int)wp[1]))
+ return(2);
+
+ /*
+ * Any non-digit terminates the character number.
+ * That is, the terminating delimiter need not
+ * match the starting delimiter.
+ */
+
+ for (i = 2; isdigit((int)wp[i]); i++)
+ (*sz)++;
+
+ /*
+ * This is only a numbered character
+ * if the character number has at least one digit.
+ */
+
+ if (*sz)
+ *d = DECO_NUMBERED;
+
+ /*
+ * Skip the terminating delimiter, even if it does not
+ * match, and even if there is no character number.
+ */
+
+ return(++i);
+
+ case ('h'):
+ /* FALLTHROUGH */
+ case ('v'):
+ /* FALLTHROUGH */
+ case ('s'):
+ j = 0;
+ if ('+' == wp[i] || '-' == wp[i]) {
+ i++;
+ j = 1;
+ }
+
+ switch (wp[i++]) {
+ case ('('):
+ lim = 2;
+ break;
+ case ('['):
+ term = ']';
+ break;
+ case ('\''):
+ term = '\'';
+ break;
+ case ('0'):
+ j = 1;
+ /* FALLTHROUGH */
+ default:
+ i--;
+ lim = 1;
+ break;
+ }
+
+ if ('+' == wp[i] || '-' == wp[i]) {
+ if (j)
+ return(i);
+ i++;
+ }
+
+ /* Handle embedded numerical subexp or escape. */
+
+ if ('(' == wp[i]) {
+ while (wp[i] && ')' != wp[i])
+ if ('\\' == wp[i++]) {
+ /* Handle embedded escape. */
+ *word = &wp[i];
+ i += a2roffdeco(&dd, word, sz);
+ }
+
+ if (')' == wp[i++])
+ break;
+
+ *d = DECO_NONE;
+ return(i - 1);
+ } else if ('\\' == wp[i]) {
+ *word = &wp[++i];
+ i += a2roffdeco(&dd, word, sz);
+ }
+
+ break;
+ case ('['):
+ *d = DECO_SPECIAL;
+ term = ']';
+ break;
+ case ('c'):
+ *d = DECO_NOSPACE;
+ return(i);
+ case ('z'):
+ *d = DECO_NONE;
+ if ('\\' == wp[i]) {
+ *word = &wp[++i];
+ return(i + a2roffdeco(&dd, word, sz));
+ } else
+ lim = 1;
+ break;
+ case ('o'):
+ /* FALLTHROUGH */
+ case ('w'):
+ if ('\'' == wp[i++]) {
+ term = '\'';
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ *d = DECO_SSPECIAL;
+ i--;
+ lim = 1;
+ break;
+ }
+
+ assert(term || lim);
+ *word = &wp[i];
+
+ if (term) {
+ j = i;
+ while (wp[i] && wp[i] != term)
+ i++;
+ if ('\0' == wp[i]) {
+ *d = DECO_NONE;
+ return(i);
+ }
+
+ assert(i >= j);
+ *sz = (size_t)(i - j);
+
+ return(i + 1);
+ }
+
+ assert(lim > 0);
+ *sz = (size_t)lim;
+
+ for (j = 0; wp[i] && j < lim; j++)
+ i++;
+ if (j < lim)
+ *d = DECO_NONE;
+
+ return(i);
+}
+
+/*
+ * Calculate the abstract widths and decimal positions of columns in a
+ * table. This routine allocates the columns structures then runs over
+ * all rows and cells in the table. The function pointers in "tbl" are
+ * used for the actual width calculations.
+ */
+void
+tblcalc(struct rofftbl *tbl, const struct tbl_span *sp)
+{
+ const struct tbl_dat *dp;
+ const struct tbl_head *hp;
+ struct roffcol *col;
+
+ /*
+ * Allocate the master column specifiers. These will hold the
+ * widths and decimal positions for all cells in the column. It
+ * must be freed and nullified by the caller.
+ */
+
+ assert(NULL == tbl->cols);
+ tbl->cols = mandoc_calloc
+ ((size_t)sp->tbl->cols, sizeof(struct roffcol));
+
+ hp = sp->head;
+
+ for ( ; sp; sp = sp->next) {
+ if (TBL_SPAN_DATA != sp->pos)
+ continue;
+ /*
+ * Account for the data cells in the layout, matching it
+ * to data cells in the data section.
+ */
+ for (dp = sp->first; dp; dp = dp->next) {
+ assert(dp->layout);
+ col = &tbl->cols[dp->layout->head->ident];
+ tblcalc_data(tbl, col, sp->tbl, dp);
+ }
+ }
+
+ /*
+ * Calculate width of the spanners. These get one space for a
+ * vertical line, two for a double-vertical line.
+ */
+
+ for ( ; hp; hp = hp->next) {
+ col = &tbl->cols[hp->ident];
+ switch (hp->pos) {
+ case (TBL_HEAD_VERT):
+ col->width = (*tbl->len)(1, tbl->arg);
+ break;
+ case (TBL_HEAD_DVERT):
+ col->width = (*tbl->len)(2, tbl->arg);
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+static void
+tblcalc_data(struct rofftbl *tbl, struct roffcol *col,
+ const struct tbl *tp, const struct tbl_dat *dp)
+{
+ size_t sz;
+
+ /* Branch down into data sub-types. */
+
+ 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);
+ break;
+ case (TBL_CELL_NUMBER):
+ tblcalc_number(tbl, col, tp, dp);
+ break;
+ case (TBL_CELL_DOWN):
+ break;
+ default:
+ abort();
+ /* NOTREACHED */
+ }
+}
+
+static void
+tblcalc_literal(struct rofftbl *tbl, struct roffcol *col,
+ const struct tbl_dat *dp)
+{
+ size_t sz, bufsz, spsz;
+ const char *str;
+
+ /*
+ * Calculate our width and use the spacing, with a minimum
+ * spacing dictated by position (centre, e.g,. gets a space on
+ * either side, while right/left get a single adjacent space).
+ */
+
+ bufsz = spsz = 0;
+ str = dp->string ? dp->string : "";
+ sz = (*tbl->slen)(str, tbl->arg);
+
+ /* FIXME: TBL_DATA_HORIZ et al.? */
+
+ assert(dp->layout);
+ switch (dp->layout->pos) {
+ case (TBL_CELL_LONG):
+ /* FALLTHROUGH */
+ case (TBL_CELL_CENTRE):
+ bufsz = (*tbl->len)(1, tbl->arg);
+ break;
+ default:
+ bufsz = (*tbl->len)(1, tbl->arg);
+ break;
+ }
+
+ if (dp->layout->spacing) {
+ spsz = (*tbl->len)(dp->layout->spacing, tbl->arg);
+ bufsz = bufsz > spsz ? bufsz : spsz;
+ }
+
+ sz += bufsz;
+ if (col->width < sz)
+ col->width = sz;
+}
+
+static void
+tblcalc_number(struct rofftbl *tbl, struct roffcol *col,
+ const struct tbl *tp, const struct tbl_dat *dp)
+{
+ int i;
+ size_t sz, psz, ssz, d;
+ const char *str;
+ char *cp;
+ char buf[2];
+
+ /*
+ * First calculate number width and decimal place (last + 1 for
+ * no-decimal numbers). If the stored decimal is subsequent
+ * ours, make our size longer by that difference
+ * (right-"shifting"); similarly, if ours is subsequent the
+ * stored, then extend the stored size by the difference.
+ * Finally, re-assign the stored values.
+ */
+
+ str = dp->string ? dp->string : "";
+ sz = (*tbl->slen)(str, tbl->arg);
+
+ /* FIXME: TBL_DATA_HORIZ et al.? */
+
+ buf[0] = tp->decimal;
+ buf[1] = '\0';
+
+ psz = (*tbl->slen)(buf, tbl->arg);
+
+ if (NULL != (cp = strrchr(str, tp->decimal))) {
+ buf[1] = '\0';
+ for (ssz = 0, i = 0; cp != &str[i]; i++) {
+ buf[0] = str[i];
+ ssz += (*tbl->slen)(buf, tbl->arg);
+ }
+ d = ssz + psz;
+ } else
+ d = sz + psz;
+
+ /* Padding. */
+
+ sz += (*tbl->len)(2, tbl->arg);
+ d += (*tbl->len)(1, tbl->arg);
+
+ /* Adjust the settings for this column. */
+
+ if (col->decimal > d) {
+ sz += col->decimal - d;
+ d = col->decimal;
+ } else
+ col->width += d - col->decimal;
+
+ if (sz > col->width)
+ col->width = sz;
+ if (d > col->decimal)
+ col->decimal = d;
+
+ /* Adjust for stipulated width. */
+
+ if (col->width < dp->layout->spacing)
+ col->width = dp->layout->spacing;
+}
+
+
git.ckatri.com / mandoc.git / blobdiff