Broke ascii_*() functions into term_ascii.c

Made low-level engine functions into function pointers.

1 files changed, 17 insertions, 6 deletions

diff --git a/term.h b/term.h
index 7b61a4ef..54b9d46f 100644
--- a/term.h
+++ b/term.h
@@ -40,6 +40,15 @@ enum	termfont {
 
 typedef void	(*term_margin)(struct termp *, const void *);
 
+struct	termp_ps {
+	int		  psstate;	/* -Tps: state of ps output */
+#define	PS_INLINE	 (1 << 0)	
+#define	PS_MARGINS	 (1 << 1)	
+	size_t		  pscol;	/* -Tps: visible column */
+	size_t		  psrow;	/* -Tps: visible row */
+	size_t		  pspage;	/* -Tps: current page */
+};
+
 struct	termp {
 	enum termtype	  type;
 	size_t		  defrmargin;	/* Right margin of the device.. */
@@ -72,13 +81,15 @@ struct	termp {
 	int		  fonti;	/* Index of font stack. */
 	term_margin	  headf;	/* invoked to print head */
 	term_margin	  footf;	/* invoked to print foot */
+	void		(*letter)(struct termp *, char);
+	void		(*begin)(struct termp *);
+	void		(*end)(struct termp *);
+	void		(*endline)(struct termp *);
+	void		(*advance)(struct termp *, size_t);
 	const void	 *argf;		/* arg for headf/footf */
-	int		  psstate;	/* -Tps: state of ps output */
-#define	PS_INLINE	 (1 << 0)	
-#define	PS_MARGINS	 (1 << 1)	
-	size_t		  pscol;	/* -Tps: visible column */
-	size_t		  psrow;	/* -Tps: visible row */
-	size_t		  pspage;	/* -Tps: current page */
+	union {
+		struct termp_ps ps;
+	} engine;
 };
 
 struct termp	 *term_alloc(enum termenc);