Step 1 of restructuring: libmandoc.h. Move all compiler-set-specific

stuff into libmandoc.h, including old mdoc.h/man.h/roff.h functions now
used by read.c.  The motivation behind this is to tighten the
relationship between the underlying compilers while keeping parse data
hidden from general callers (e.g., main.c).

While here, also move register values from mandoc.h into libmandoc.h as
noted by schwarze@.  See above for explanation.

1 files changed, 0 insertions, 36 deletions

diff --git a/mandoc.h b/mandoc.h
index dceb0c32..3378518e 100644
--- a/mandoc.h
+++ b/mandoc.h
@@ -277,42 +277,6 @@ struct	eqn {
 };
 
 /*
- * Available registers (set in libroff, accessed elsewhere).
- */
-enum	regs {
-	REG_nS = 0,
-	REG__MAX
-};
-
-/*
- * A register (struct reg) can consist of many types: this consists of
- * normalised types from the original string form.
- */
-union	regval {
-	unsigned  u; /* unsigned integer */
-};
-
-/*
- * A single register entity.  If "set" is zero, the value of the
- * register should be the default one, which is per-register.  It's
- * assumed that callers know which type in "v" corresponds to which
- * register value.
- */
-struct	reg {
-	int		  set; /* whether set or not */
-	union regval	  v; /* parsed data */
-};
-
-/*
- * The primary interface to setting register values is in libroff,
- * although libmdoc and libman from time to time will manipulate
- * registers (such as `.Sh SYNOPSIS' enabling REG_nS).
- */
-struct	regset {
-	struct reg	  regs[REG__MAX];
-};
-
-/*
  * A punctuation delimiter, used only in mdoc(7) documents, is opening,
  * closing, or "middle mark" punctuation.  These govern spacing.
  * Opening punctuation (e.g., the opening parenthesis) suppresses the