fix -Tman font handling for:

[mandoc.git] / tbl_term.c

diff --git a/tbl_term.c b/tbl_term.c
index a242a6be967675a2d96a1ec3a38c343a15cb74f8..9f399d0cf96ba4aee0b3d65d6444cc4fa2f12586 100644 (file)
--- a/tbl_term.c
+++ b/tbl_term.c
@@ -1,6 +1,7 @@
-/*     $Id: tbl_term.c,v 1.1 2011/01/02 12:21:07 kristaps Exp $ */
+/*     $Id: tbl_term.c,v 1.24 2012/05/27 18:02:49 schwarze Exp $ */

 /*
 /*

- * Copyright (c) 2009 Kristaps Dzonsons <kristaps@kth.se>
+ * Copyright (c) 2009, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2011, 2012 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
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above


@@ -27,160 +28,226 @@
 #include "out.h"
 #include "term.h"
 
 #include "out.h"
 #include "term.h"
 

-/* FIXME: `n' modifier doesn't always do the right thing. */
-/* FIXME: `n' modifier doesn't use the cell-spacing buffer. */
-
-static inline void      tbl_char(struct termp *, char, int);
-static void             tbl_hframe(struct termp *, 
-                               const struct tbl_span *);
-static void             tbl_data_number(struct termp *, 
-                               const struct tbl *, 
-                               const struct tbl_dat *, int);
-static void             tbl_data_literal(struct termp *, 
-                               const struct tbl_dat *, int);
-static void             tbl_data_spanner(struct termp *, 
-                               const struct tbl_dat *, int);
-static void             tbl_data(struct termp *, const struct tbl *,
-                               const struct tbl_dat *, int);
-static void             tbl_spanner(struct termp *, 
-                               const struct tbl_head *);
-static void             tbl_hrule(struct termp *, 
-                               const struct tbl_span *);
-static void             tbl_vframe(struct termp *, const struct tbl *);
+static size_t  term_tbl_len(size_t, void *);
+static size_t  term_tbl_strlen(const char *, void *);
+static void    tbl_char(struct termp *, char, size_t);
+static void    tbl_data(struct termp *, const struct tbl *,
+                       const struct tbl_dat *, 
+                       const struct roffcol *);
+static size_t  tbl_rulewidth(struct termp *, const struct tbl_head *);
+static void    tbl_hframe(struct termp *, const struct tbl_span *, int);
+static void    tbl_literal(struct termp *, const struct tbl_dat *, 
+                       const struct roffcol *);
+static void    tbl_number(struct termp *, const struct tbl *, 
+                       const struct tbl_dat *, 
+                       const struct roffcol *);
+static void    tbl_hrule(struct termp *, const struct tbl_span *);
+static void    tbl_vrule(struct termp *, const struct tbl_head *);
+
+
+static size_t
+term_tbl_strlen(const char *p, void *arg)
+{
+
+       return(term_strlen((const struct termp *)arg, p));
+}
+
+static size_t
+term_tbl_len(size_t sz, void *arg)
+{
+
+       return(term_len((const struct termp *)arg, sz));
+}

 
 void
 term_tbl(struct termp *tp, const struct tbl_span *sp)
 {
 
 void
 term_tbl(struct termp *tp, const struct tbl_span *sp)
 {

-       const struct tbl_head *hp;
-       const struct tbl_dat *dp;
+       const struct tbl_head   *hp;
+       const struct tbl_dat    *dp;
+       struct roffcol          *col;
+       int                      spans;
+       size_t                   rmargin, maxrmargin;

 
 

-       if (TBL_SPAN_FIRST & sp->flags)
-               term_flushln(tp);
+       rmargin = tp->rmargin;
+       maxrmargin = tp->maxrmargin;
+
+       tp->rmargin = tp->maxrmargin = TERM_MAXMARGIN;

 
 

-       if (TBL_SPAN_FIRST & sp->flags)
-               tbl_hframe(tp, sp);
+       /* Inhibit printing of spaces: we do padding ourselves. */

 
        tp->flags |= TERMP_NONOSPACE;
        tp->flags |= TERMP_NOSPACE;
 
 
        tp->flags |= TERMP_NONOSPACE;
        tp->flags |= TERMP_NOSPACE;
 

-       tbl_vframe(tp, sp->tbl);
+       /*
+        * The first time we're invoked for a given table block,
+        * calculate the table widths and decimal positions.
+        */
+
+       if (TBL_SPAN_FIRST & sp->flags) {
+               term_flushln(tp);
+
+               tp->tbl.len = term_tbl_len;
+               tp->tbl.slen = term_tbl_strlen;
+               tp->tbl.arg = tp;
+
+               tblcalc(&tp->tbl, sp);
+       }
+
+       /* Horizontal frame at the start of boxed tables. */
+
+       if (TBL_SPAN_FIRST & sp->flags) {
+               if (TBL_OPT_DBOX & sp->tbl->opts)
+                       tbl_hframe(tp, sp, 1);
+               if (TBL_OPT_DBOX & sp->tbl->opts ||
+                   TBL_OPT_BOX  & sp->tbl->opts)
+                       tbl_hframe(tp, sp, 0);
+       }
+
+       /* Vertical frame at the start of each row. */
+
+       if (TBL_OPT_BOX & sp->tbl->opts || TBL_OPT_DBOX & sp->tbl->opts)
+               term_word(tp, TBL_SPAN_HORIZ == sp->pos ||
+                       TBL_SPAN_DHORIZ == sp->pos ? "+" : "|");
+
+       /*
+        * Now print the actual data itself depending on the span type.
+        * Spanner spans get a horizontal rule; data spanners have their
+        * data printed by matching data to header.
+        */

 
        switch (sp->pos) {
        case (TBL_SPAN_HORIZ):
                /* FALLTHROUGH */
        case (TBL_SPAN_DHORIZ):
                tbl_hrule(tp, sp);
 
        switch (sp->pos) {
        case (TBL_SPAN_HORIZ):
                /* FALLTHROUGH */
        case (TBL_SPAN_DHORIZ):
                tbl_hrule(tp, sp);

-               tbl_vframe(tp, sp->tbl);
-               term_newln(tp);
-               tp->flags &= ~TERMP_NONOSPACE;
-               return;
-       default:

                break;
                break;

-       }
+       case (TBL_SPAN_DATA):
+               /* Iterate over template headers. */
+               dp = sp->first;
+               spans = 0;
+               for (hp = sp->head; hp; hp = hp->next) {

 
 

-       dp = sp->first;
-       for (hp = sp->head; hp; hp = hp->next) {
-               switch (hp->pos) {
-               case (TBL_HEAD_VERT):
-                       /* FALLTHROUGH */
-               case (TBL_HEAD_DVERT):
-                       tbl_spanner(tp, hp);
-                       break;
-               case (TBL_HEAD_DATA):
-                       tbl_data(tp, sp->tbl, dp, hp->width);
-                       if (dp)
+                       /* 
+                        * If the current data header is invoked during
+                        * a spanner ("spans" > 0), don't emit anything
+                        * at all.
+                        */
+
+                       if (--spans >= 0)
+                               continue;
+
+                       /* Separate columns. */
+
+                       if (NULL != hp->prev)
+                               tbl_vrule(tp, hp);
+
+                       col = &tp->tbl.cols[hp->ident];
+                       tbl_data(tp, sp->tbl, dp, col);
+
+                       /* 
+                        * Go to the next data cell and assign the
+                        * number of subsequent spans, if applicable.
+                        */
+
+                       if (dp) {
+                               spans = dp->spans;

                                dp = dp->next;
                                dp = dp->next;

-                       break;
-               default:
-                       abort();
-                       /* NOTREACHED */
+                       }

                }
                }

+               break;

        }
 
        }
 

-       tbl_vframe(tp, sp->tbl);
+       /* Vertical frame at the end of each row. */
+
+       if (TBL_OPT_BOX & sp->tbl->opts || TBL_OPT_DBOX & sp->tbl->opts)
+               term_word(tp, TBL_SPAN_HORIZ == sp->pos ||
+                       TBL_SPAN_DHORIZ == sp->pos ? "+" : " |");

        term_flushln(tp);
 
        term_flushln(tp);
 

-       if (TBL_SPAN_LAST & sp->flags)
-               tbl_hframe(tp, sp);
+       /*
+        * If we're the last row, clean up after ourselves: clear the
+        * existing table configuration and set it to NULL.
+        */
+
+       if (TBL_SPAN_LAST & sp->flags) {
+               if (TBL_OPT_DBOX & sp->tbl->opts ||
+                   TBL_OPT_BOX  & sp->tbl->opts) {
+                       tbl_hframe(tp, sp, 0);
+                       tp->skipvsp = 1;
+               }
+               if (TBL_OPT_DBOX & sp->tbl->opts) {
+                       tbl_hframe(tp, sp, 1);
+                       tp->skipvsp = 2;
+               }
+               assert(tp->tbl.cols);
+               free(tp->tbl.cols);
+               tp->tbl.cols = NULL;
+       }

 
        tp->flags &= ~TERMP_NONOSPACE;
 
        tp->flags &= ~TERMP_NONOSPACE;

+       tp->rmargin = rmargin;
+       tp->maxrmargin = maxrmargin;

 
 }
 
 
 }
 

+/*
+ * Horizontal rules extend across the entire table.
+ * Calculate the width by iterating over columns.
+ */
+static size_t
+tbl_rulewidth(struct termp *tp, const struct tbl_head *hp)
+{
+       size_t           width;
+
+       width = tp->tbl.cols[hp->ident].width;
+
+       /* Account for leading blanks. */
+       if (hp->prev)
+               width += 2 - hp->vert;
+
+       /* Account for trailing blank. */
+       width++;
+
+       return(width);
+}
+
+/*
+ * Rules inside the table can be single or double
+ * and have crossings with vertical rules marked with pluses.
+ */

 static void
 tbl_hrule(struct termp *tp, const struct tbl_span *sp)
 {
        const struct tbl_head *hp;
        char             c;
 
 static void
 tbl_hrule(struct termp *tp, const struct tbl_span *sp)
 {
        const struct tbl_head *hp;
        char             c;
 

-       /*
-        * An hrule extends across the entire table and is demarked by a
-        * standalone `_' or whatnot in lieu of a table row.  Spanning
-        * headers are marked by a `+', as are table boundaries.
-        */
-

        c = '-';
        if (TBL_SPAN_DHORIZ == sp->pos)
                c = '=';
 
        c = '-';
        if (TBL_SPAN_DHORIZ == sp->pos)
                c = '=';
 

-       /* FIXME: don't use `+' between data and a spanner! */
-

        for (hp = sp->head; hp; hp = hp->next) {
        for (hp = sp->head; hp; hp = hp->next) {

-               switch (hp->pos) {
-               case (TBL_HEAD_DATA):
-                       tbl_char(tp, c, hp->width);
-                       break;
-               case (TBL_HEAD_DVERT):
-                       tbl_char(tp, '+', hp->width);
-                       /* FALLTHROUGH */
-               case (TBL_HEAD_VERT):
-                       tbl_char(tp, '+', hp->width);
-                       break;
-               default:
-                       abort();
-                       /* NOTREACHED */
-               }
+               if (hp->prev && hp->vert)
+                       tbl_char(tp, '+', hp->vert);
+               tbl_char(tp, c, tbl_rulewidth(tp, hp));

        }
 }
 
        }
 }
 

+/*
+ * Rules above and below the table are always single
+ * and have an additional plus at the beginning and end.
+ * For double frames, this function is called twice,
+ * and the outer one does not have crossings.
+ */

 static void
 static void

-tbl_hframe(struct termp *tp, const struct tbl_span *sp)
+tbl_hframe(struct termp *tp, const struct tbl_span *sp, int outer)

 {
        const struct tbl_head *hp;
 
 {
        const struct tbl_head *hp;
 

-       if ( ! (TBL_OPT_BOX & sp->tbl->opts || 
-                       TBL_OPT_DBOX & sp->tbl->opts))
-               return;
-
-       tp->flags |= TERMP_NONOSPACE;
-       tp->flags |= TERMP_NOSPACE;
-
-       /* 
-        * Print out the horizontal part of a frame or double frame.  A
-        * double frame has an unbroken `-' outer line the width of the
-        * table, bordered by `+'.  The frame (or inner frame, in the
-        * case of the double frame) is a `-' bordered by `+' and broken
-        * by `+' whenever a span is encountered.
-        */
-
-       if (TBL_OPT_DBOX & sp->tbl->opts) {
-               term_word(tp, "+");
-               for (hp = sp->head; hp; hp = hp->next)
-                       tbl_char(tp, '-', hp->width);
-               term_word(tp, "+");
-               term_flushln(tp);
-       }
-

        term_word(tp, "+");
        for (hp = sp->head; hp; hp = hp->next) {
        term_word(tp, "+");
        for (hp = sp->head; hp; hp = hp->next) {

-               switch (hp->pos) {
-               case (TBL_HEAD_DATA):
-                       tbl_char(tp, '-', hp->width);
-                       break;
-               default:
-                       tbl_char(tp, '+', hp->width);
-                       break;
-               }
+               if (hp->prev && hp->vert)
+                       tbl_char(tp, (outer ? '-' : '+'), hp->vert);
+               tbl_char(tp, '-', tbl_rulewidth(tp, hp));

        }
        term_word(tp, "+");
        term_flushln(tp);
        }
        term_word(tp, "+");
        term_flushln(tp);


@@ -188,32 +255,40 @@ tbl_hframe(struct termp *tp, const struct tbl_span *sp)
 
 static void
 tbl_data(struct termp *tp, const struct tbl *tbl,
 
 static void
 tbl_data(struct termp *tp, const struct tbl *tbl,

-               const struct tbl_dat *dp, int width)
+               const struct tbl_dat *dp, 
+               const struct roffcol *col)

 {
 {

-       enum tbl_cellt   pos;

 
        if (NULL == dp) {
 
        if (NULL == dp) {

-               tbl_char(tp, ASCII_NBRSP, width);
+               tbl_char(tp, ASCII_NBRSP, col->width);

                return;
        }
                return;
        }

+       assert(dp->layout);

 
        switch (dp->pos) {
 
        switch (dp->pos) {

+       case (TBL_DATA_NONE):
+               tbl_char(tp, ASCII_NBRSP, col->width);
+               return;

        case (TBL_DATA_HORIZ):
                /* FALLTHROUGH */
        case (TBL_DATA_HORIZ):
                /* FALLTHROUGH */

+       case (TBL_DATA_NHORIZ):
+               tbl_char(tp, '-', col->width);
+               return;
+       case (TBL_DATA_NDHORIZ):
+               /* FALLTHROUGH */

        case (TBL_DATA_DHORIZ):
        case (TBL_DATA_DHORIZ):

-               tbl_data_spanner(tp, dp, width);
+               tbl_char(tp, '=', col->width);

                return;
        default:
                break;
        }
        
                return;
        default:
                break;
        }
        

-       pos = dp->layout ? dp->layout->pos : TBL_CELL_LEFT;
-
-       switch (pos) {
+       switch (dp->layout->pos) {

        case (TBL_CELL_HORIZ):
        case (TBL_CELL_HORIZ):

-               /* FALLTHROUGH */
+               tbl_char(tp, '-', col->width);
+               break;

        case (TBL_CELL_DHORIZ):
        case (TBL_CELL_DHORIZ):

-               tbl_data_spanner(tp, dp, width);
+               tbl_char(tp, '=', col->width);

                break;
        case (TBL_CELL_LONG):
                /* FALLTHROUGH */
                break;
        case (TBL_CELL_LONG):
                /* FALLTHROUGH */


@@ -222,100 +297,81 @@ tbl_data(struct termp *tp, const struct tbl *tbl,
        case (TBL_CELL_LEFT):
                /* FALLTHROUGH */
        case (TBL_CELL_RIGHT):
        case (TBL_CELL_LEFT):
                /* FALLTHROUGH */
        case (TBL_CELL_RIGHT):

-               tbl_data_literal(tp, dp, width);
+               tbl_literal(tp, dp, col);

                break;
        case (TBL_CELL_NUMBER):
                break;
        case (TBL_CELL_NUMBER):

-               tbl_data_number(tp, tbl, dp, width);
+               tbl_number(tp, tbl, dp, col);
+               break;
+       case (TBL_CELL_DOWN):
+               tbl_char(tp, ASCII_NBRSP, col->width);

                break;
        default:
                abort();
                /* NOTREACHED */
        }
 }
                break;
        default:
                abort();
                /* NOTREACHED */
        }
 }

-static void
-tbl_spanner(struct termp *tp, const struct tbl_head *hp)
-{
-
-       switch (hp->pos) {
-       case (TBL_HEAD_VERT):
-               term_word(tp, "|");
-               break;
-       case (TBL_HEAD_DVERT):
-               term_word(tp, "||");
-               break;
-       default:
-               break;
-       }
-}

 
 static void
 
 static void

-tbl_vframe(struct termp *tp, const struct tbl *tbl)
+tbl_vrule(struct termp *tp, const struct tbl_head *hp)

 {
 {

-       /* Always just a single vertical line. */

 
 

-       if (TBL_OPT_BOX & tbl->opts || TBL_OPT_DBOX & tbl->opts)
-               term_word(tp, "|");
+       tbl_char(tp, ASCII_NBRSP, 1);
+       if (0 < hp->vert)
+               tbl_char(tp, '|', hp->vert);
+       if (2 > hp->vert)
+               tbl_char(tp, ASCII_NBRSP, 2 - hp->vert);

 }
 
 }
 

-
-static inline void
-tbl_char(struct termp *tp, char c, int len)
+static void
+tbl_char(struct termp *tp, char c, size_t len)

 {
 {

-       int             i;
+       size_t          i, sz;

        char            cp[2];
 
        cp[0] = c;
        cp[1] = '\0';
 
        char            cp[2];
 
        cp[0] = c;
        cp[1] = '\0';
 

-       for (i = 0; i < len; i++)
+       sz = term_strlen(tp, cp);
+
+       for (i = 0; i < len; i += sz)

                term_word(tp, cp);
 }
 
 static void
                term_word(tp, cp);
 }
 
 static void

-tbl_data_spanner(struct termp *tp, const struct tbl_dat *dp, int width)
+tbl_literal(struct termp *tp, const struct tbl_dat *dp, 
+               const struct roffcol *col)

 {
 {

+       struct tbl_head         *hp;
+       size_t                   width, len, padl, padr;
+       int                      spans;

 
 

-       switch (dp->pos) {
-       case (TBL_DATA_HORIZ):
-       case (TBL_DATA_NHORIZ):
-               tbl_char(tp, '-', width);
-               break;
-       case (TBL_DATA_DHORIZ):
-       case (TBL_DATA_NDHORIZ):
-               tbl_char(tp, '=', width);
-               break;
-       default:
-               break;
-       }
-}
-
-static void
-tbl_data_literal(struct termp *tp, const struct tbl_dat *dp, int width)
-{
-       int              padl, padr;
-       enum tbl_cellt   pos;
+       assert(dp->string);
+       len = term_strlen(tp, dp->string);

 
 

-       padl = padr = 0;
+       hp = dp->layout->head->next;
+       width = col->width;
+       for (spans = dp->spans; spans--; hp = hp->next)
+               width += tp->tbl.cols[hp->ident].width + 3;

 
 

-       pos = dp->layout ? dp->layout->pos : TBL_CELL_LEFT;
+       padr = width > len ? width - len : 0;
+       padl = 0;

 
 

-       switch (pos) {
+       switch (dp->layout->pos) {

        case (TBL_CELL_LONG):
        case (TBL_CELL_LONG):

-               padl = 1;
-               padr = width - (int)strlen(dp->string) - 1;
+               padl = term_len(tp, 1);
+               padr = padr > padl ? padr - padl : 0;

                break;
        case (TBL_CELL_CENTRE):
                break;
        case (TBL_CELL_CENTRE):

-               padl = width - (int)strlen(dp->string);
-               if (padl % 2)
-                       padr++;
-               padl /= 2;
-               padr += padl;
+               if (2 > padr)
+                       break;
+               padl = padr / 2;
+               padr -= padl;

                break;
        case (TBL_CELL_RIGHT):
                break;
        case (TBL_CELL_RIGHT):

-               padl = width - (int)strlen(dp->string);
+               padl = padr;
+               padr = 0;

                break;
        default:
                break;
        default:

-               padr = width - (int)strlen(dp->string);

                break;
        }
 
                break;
        }
 


@@ -325,34 +381,44 @@ tbl_data_literal(struct termp *tp, const struct tbl_dat *dp, int width)
 }
 
 static void
 }
 
 static void

-tbl_data_number(struct termp *tp, const struct tbl *tbl,
-               const struct tbl_dat *dp, int width)
+tbl_number(struct termp *tp, const struct tbl *tbl,
+               const struct tbl_dat *dp,
+               const struct roffcol *col)

 {
 {

-       char            *decp, pnt;
-       int              d, padl, sz;
+       char            *cp;
+       char             buf[2];
+       size_t           sz, psz, ssz, d, padl;
+       int              i;

 
        /*
         * See calc_data_number().  Left-pad by taking the offset of our
         * and the maximum decimal; right-pad by the remaining amount.
         */
 
 
        /*
         * See calc_data_number().  Left-pad by taking the offset of our
         * and the maximum decimal; right-pad by the remaining amount.
         */
 

-       sz = (int)strlen(dp->string);
-       pnt = tbl->decimal;
+       assert(dp->string);

 
 

-       if (NULL == (decp = strchr(dp->string, pnt))) {
-               d = sz + 1;
-       } else {
-               d = (int)(decp - dp->string) + 1;
-       }
+       sz = term_strlen(tp, dp->string);

 
 

-       assert(d <= dp->layout->head->decimal);
-       assert(sz - d <= dp->layout->head->width -
-                       dp->layout->head->decimal);
+       buf[0] = tbl->decimal;
+       buf[1] = '\0';

 
 

-       padl = dp->layout->head->decimal - d + 1;
-       assert(width - sz - padl);
+       psz = term_strlen(tp, buf);
+
+       if (NULL != (cp = strrchr(dp->string, tbl->decimal))) {
+               buf[1] = '\0';
+               for (ssz = 0, i = 0; cp != &dp->string[i]; i++) {
+                       buf[0] = dp->string[i];
+                       ssz += term_strlen(tp, buf);
+               }
+               d = ssz + psz;
+       } else
+               d = sz + psz;
+
+       padl = col->decimal - d;

 
        tbl_char(tp, ASCII_NBRSP, padl);
        term_word(tp, dp->string);
 
        tbl_char(tp, ASCII_NBRSP, padl);
        term_word(tp, dp->string);

-       tbl_char(tp, ASCII_NBRSP, width - sz - padl);
+       if (col->width > sz + padl)
+               tbl_char(tp, ASCII_NBRSP, col->width - sz - padl);

 }
 }

+