]> git.cameronkatri.com Git - mandoc.git/blobdiff - out.c
Add all rendered symbols used by eqn. I use the Second-Edition User's
[mandoc.git] / out.c
diff --git a/out.c b/out.c
index b224059eef8dc080b5f2c0ef2739fde90e0c2cff..eb679e6431fe78e58cbef217a06b06f4a6e4dfea 100644 (file)
--- a/out.c
+++ b/out.c
@@ -1,6 +1,7 @@
-/*     $Id: out.c,v 1.12 2010/01/01 17:14:30 kristaps Exp $ */
+/*     $Id: out.c,v 1.41 2011/07/17 15:24:25 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
 #include <string.h>
 #include <time.h>
 
+#include "mandoc.h"
 #include "out.h"
 
-/* See a2roffdeco(). */
-#define        C2LIM(c, l) do { \
-       (l) = 1; \
-       if ('[' == (c) || '\'' == (c)) \
-               (l) = 0; \
-       else if ('(' == (c)) \
-               (l) = 2; } \
-       while (/* CONSTCOND */ 0)
-
-/* See a2roffdeco(). */
-#define        C2TERM(c, t) do { \
-       (t) = 0; \
-       if ('\'' == (c)) \
-               (t) = 1; \
-       else if ('[' == (c)) \
-               (t) = 2; \
-       else if ('(' == (c)) \
-               (t) = 3; } \
-       while (/* CONSTCOND */ 0)
+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
@@ -136,221 +125,210 @@ a2roffsu(const char *src, struct roffsu *dst, enum roffscale def)
                return(0);
        }
 
+       /* FIXME: do this in the caller. */
        if ((dst->scale = atof(buf)) < 0)
                dst->scale = 0;
        dst->unit = unit;
-       dst->pt = hasd;
-
        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);
-}
-
-
-/* 
- * Returns length of parsed string (the leading "\" should NOT be
- * included).  This can be zero if the current character is the nil
- * terminator.  "d" is set to the type of parsed decorator, which may
- * have an adjoining "word" of size "sz" (e.g., "(ab" -> "ab", 2).
- */
-int
-a2roffdeco(enum roffdeco *d,
-               const char **word, size_t *sz)
-{
-       int              j, type, term, lim;
-       const char      *wp, *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);
+               }
+       }
 
-       *d = DECO_NONE;
-       wp = *word;
-       type = 1;
+       /* 
+        * Calculate width of the spanners.  These get one space for a
+        * vertical line, two for a double-vertical line. 
+        */
 
-       switch (*wp) {
-       case ('\0'):
-               return(0);
-
-       case ('('):
-               if ('\0' == *(++wp))
-                       return(1);
-               if ('\0' == *(wp + 1))
-                       return(2);
-
-               *d = DECO_SPECIAL;
-               *sz = 2;
-               *word = wp;
-               return(3);
-
-       case ('*'):
-               switch (*(++wp)) {
-               case ('\0'):
-                       return(1);
-
-               case ('('):
-                       if ('\0' == *(++wp))
-                               return(2);
-                       if ('\0' == *(wp + 1))
-                               return(3);
-
-                       *d = DECO_RESERVED;
-                       *sz = 2;
-                       *word = wp;
-                       return(4);
-
-               case ('['):
-                       type = 0;
+       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:
-                       *d = DECO_RESERVED;
-                       *sz = 1;
-                       *word = wp;
-                       return(2);
+                       break;
                }
-               break;
-
-       case ('s'):
-               sp = wp;
-               if ('\0' == *(++wp))
-                       return(1);
-
-               C2LIM(*wp, lim);
-               C2TERM(*wp, term);
-
-               if (term) 
-                       wp++;
+       }
+}
 
-               *word = wp;
+static void
+tblcalc_data(struct rofftbl *tbl, struct roffcol *col,
+               const struct tbl *tp, const struct tbl_dat *dp)
+{
+       size_t           sz;
 
-               if (*wp == '+' || *wp == '-')
-                       ++wp;
+       /* Branch down into data sub-types. */
 
-               switch (*wp) {
-               case ('\''):
-                       /* FALLTHROUGH */
-               case ('['):
-                       /* FALLTHROUGH */
-               case ('('):
-                       if (term) 
-                               return((int)(wp - sp));
+       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 */
+       }
+}
 
-                       C2LIM(*wp, lim);
-                       C2TERM(*wp, term);
-                       wp++;
-                       break;
-               default:
-                       break;
-               }
+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 ( ! isdigit((u_char)*wp))
-                       return((int)(wp - sp));
+       if (dp->layout->spacing) {
+               spsz = (*tbl->len)(dp->layout->spacing, tbl->arg);
+               bufsz = bufsz > spsz ? bufsz : spsz;
+       }
 
-               for (j = 0; isdigit((u_char)*wp); j++) {
-                       if (lim && j >= lim)
-                               break;
-                       ++wp;
-               }
+       sz += bufsz;
+       if (col->width < sz)
+               col->width = sz;
+}
 
-               if (term && term < 3) {
-                       if (1 == term && *wp != '\'')
-                               return((int)(wp - sp));
-                       if (2 == term && *wp != ']')
-                               return((int)(wp - sp));
-                       ++wp;
+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;
 
-               *d = DECO_SIZE;
-               return((int)(wp - sp));
+       /* Padding. */
 
-       case ('f'):
-               switch (*(++wp)) {
-               case ('\0'):
-                       return(1);
-               case ('3'):
-                       /* FALLTHROUGH */
-               case ('B'):
-                       *d = DECO_BOLD;
-                       break;
-               case ('2'):
-                       /* FALLTHROUGH */
-               case ('I'):
-                       *d = DECO_ITALIC;
-                       break;
-               case ('P'):
-                       *d = DECO_PREVIOUS;
-                       break;
-               case ('1'):
-                       /* FALLTHROUGH */
-               case ('R'):
-                       *d = DECO_ROMAN;
-                       break;
-               default:
-                       break;
-               }
+       sz += (*tbl->len)(2, tbl->arg);
+       d += (*tbl->len)(1, tbl->arg);
 
-               return(2);
+       /* Adjust the settings for this column. */
 
-       case ('['):
-               break;
+       if (col->decimal > d) {
+               sz += col->decimal - d;
+               d = col->decimal;
+       } else
+               col->width += d - col->decimal;
 
-       case ('c'):
-               *d = DECO_NOSPACE;
-               *sz = 1;
-               return(1);
+       if (sz > col->width)
+               col->width = sz;
+       if (d > col->decimal)
+               col->decimal = d;
 
-       default:
-               *d = DECO_SPECIAL;
-               *word = wp;
-               *sz = 1;
-               return(1);
-       }
+       /* Adjust for stipulated width. */
 
-       *word = ++wp;
-       for (j = 0; *wp && ']' != *wp; wp++, j++)
-               /* Loop... */ ;
+       if (col->width < dp->layout->spacing)
+               col->width = dp->layout->spacing;
+}
 
-       if ('\0' == *wp)
-               return(j + 1);
 
-       *d = type ? DECO_SPECIAL : DECO_RESERVED;
-       *sz = (size_t)j;
-       return (j + 2);
-}