]> git.cameronkatri.com Git - mandoc.git/blobdiff - out.c
Check for and throw away `gfont' eqn macros.
[mandoc.git] / out.c
diff --git a/out.c b/out.c
index c365d9db2740abc88d384ee963043152821e53d2..eb679e6431fe78e58cbef217a06b06f4a6e4dfea 100644 (file)
--- a/out.c
+++ b/out.c
@@ -1,6 +1,7 @@
-/*     $Id: out.c,v 1.27 2010/08/24 13:39:37 kristaps Exp $ */
+/*     $Id: out.c,v 1.41 2011/07/17 15:24:25 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.
@@ -123,216 +132,203 @@ a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
        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.
+ * 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
-time2a(time_t t, char *dst, size_t sz)
+tblcalc(struct rofftbl *tbl, const struct tbl_span *sp)
 {
-       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);
-}
+       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. 
+        */
 
-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;
+       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 ('['):
-                       term = ']';
+               case (TBL_HEAD_DVERT):
+                       col->width = (*tbl->len)(2, tbl->arg);
                        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;
                }
+       }
+}
+
+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 ('k'):
+       case (TBL_CELL_LONG):
                /* FALLTHROUGH */
-       case ('M'):
+       case (TBL_CELL_CENTRE):
                /* FALLTHROUGH */
-       case ('m'):
+       case (TBL_CELL_LEFT):
                /* FALLTHROUGH */
-       case ('*'):
-               if ('*' == c)
-                       *d = DECO_RESERVED;
-
-               switch (wp[i++]) {
-               case ('('):
-                       lim = 2;
-                       break;
-               case ('['):
-                       term = ']';
-                       break;
-               default:
-                       i--;
-                       lim = 1;
-                       break;
-               }
+       case (TBL_CELL_RIGHT):
+               tblcalc_literal(tbl, col, dp);
                break;
-       case ('h'):
-               /* FALLTHROUGH */
-       case ('v'):
-               /* FALLTHROUGH */
-       case ('s'):
-               j = 0;
-               if ('+' == wp[i] || '-' == wp[i]) {
-                       i++;
-                       j = 1;
-               }
+       case (TBL_CELL_NUMBER):
+               tblcalc_number(tbl, col, tp, dp);
+               break;
+       case (TBL_CELL_DOWN):
+               break;
+       default:
+               abort();
+               /* NOTREACHED */
+       }
+}
 
-               switch (wp[i++]) {
-               case ('('):
-                       lim = 2;
-                       break;
-               case ('['):
-                       term = ']';
-                       break;
-               case ('\''):
-                       term = '\'';
-                       break;
-               case ('0'):
-                       j = 1;
-                       /* FALLTHROUGH */
-               default:
-                       i--;
-                       lim = 1;
-                       break;
-               }
+static void
+tblcalc_literal(struct rofftbl *tbl, struct roffcol *col,
+               const struct tbl_dat *dp)
+{
+       size_t           sz, bufsz, spsz;
+       const char      *str;
 
-               if ('+' == wp[i] || '-' == wp[i]) {
-                       if (j)
-                               return(i);
-                       i++;
-               } 
+       /* 
+        * 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).
+        */
 
-               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 ('w'):
-               if ('\'' == wp[i++]) {
-                       term = '\'';
-                       break;
-               } 
+       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:
-               *d = DECO_SSPECIAL;
-               i--;
-               lim = 1;
+               bufsz = (*tbl->len)(1, tbl->arg);
                break;
        }
 
-       assert(term || lim);
-       *word = &wp[i];
+       if (dp->layout->spacing) {
+               spsz = (*tbl->len)(dp->layout->spacing, tbl->arg);
+               bufsz = bufsz > spsz ? bufsz : spsz;
+       }
 
-       if (term) {
-               j = i;
-               while (wp[i] && wp[i] != term)
-                       i++;
-               if ('\0' == wp[i]) {
-                       *d = DECO_NONE;
-                       return(i);
+       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;
 
-               assert(i >= j);
-               *sz = (size_t)(i - j);
+       /* Padding. */
 
-               return(i + 1);
-       }
+       sz += (*tbl->len)(2, tbl->arg);
+       d += (*tbl->len)(1, tbl->arg);
 
-       assert(lim > 0);
-       *sz = (size_t)lim;
+       /* Adjust the settings for this column. */
 
-       for (j = 0; wp[i] && j < lim; j++)
-               i++;
-       if (j < lim)
-               *d = DECO_NONE;
+       if (col->decimal > d) {
+               sz += col->decimal - d;
+               d = col->decimal;
+       } else
+               col->width += d - col->decimal;
 
-       return(i);
+       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;
 }
+
+