-/* $Id: out.c,v 1.23 2010/07/22 23:03:15 kristaps Exp $ */
+/* $Id: out.c,v 1.39 2011/03/17 08:49:34 kristaps Exp $ */
/*
- * Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * 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
#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, mdoc.7, man.7.
int i, j, lim;
char term, c;
const char *wp;
+ enum roffdeco dd;
*d = DECO_NONE;
lim = i = 0;
break;
}
break;
+ case ('k'):
+ /* FALLTHROUGH */
case ('M'):
/* FALLTHROUGH */
case ('m'):
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'):
- if ('+' == wp[i] || '-' == wp[i])
+ j = 0;
+ if ('+' == wp[i] || '-' == wp[i]) {
i++;
-
- j = ('s' != wp[i - 1]);
+ j = 1;
+ }
switch (wp[i++]) {
case ('('):
term = '\'';
break;
case ('0'):
- j++;
+ j = 1;
/* FALLTHROUGH */
default:
i--;
}
if ('+' == wp[i] || '-' == wp[i]) {
- if (j++)
+ if (j)
return(i);
i++;
}
-
- if (0 == j)
- return(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;
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--;
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