Basic implementation of the roff(7) .ta (define tab stops) request.

This is the first feature made possible by the parser reorganization.
Improves the formatting of the SYNOPSIS in many Xenocara GL manuals.
Also important for ports, as reported by many, including naddy@.

1 files changed, 11 insertions, 1 deletions

diff --git a/roff_term.c b/roff_term.c
index ea34208e..9786e0a6 100644
--- a/roff_term.c
+++ b/roff_term.c
@@ -31,12 +31,14 @@ static	void	  roff_term_pre_br(ROFF_TERM_ARGS);
 static	void	  roff_term_pre_ft(ROFF_TERM_ARGS);
 static	void	  roff_term_pre_ll(ROFF_TERM_ARGS);
 static	void	  roff_term_pre_sp(ROFF_TERM_ARGS);
+static	void	  roff_term_pre_ta(ROFF_TERM_ARGS);
 
 static	const roff_term_pre_fp roff_term_pre_acts[ROFF_MAX] = {
 	roff_term_pre_br,  /* br */
 	roff_term_pre_ft,  /* ft */
 	roff_term_pre_ll,  /* ft */
-	roff_term_pre_sp,  /* br */
+	roff_term_pre_sp,  /* sp */
+	roff_term_pre_ta,  /* ta */
 };
 
 
@@ -111,3 +113,11 @@ roff_term_pre_sp(ROFF_TERM_ARGS)
 
 	roff_term_pre_br(p, n);
 }
+
+static void
+roff_term_pre_ta(ROFF_TERM_ARGS)
+{
+	term_tab_set(p, NULL);
+	for (n = n->child; n != NULL; n = n->next)
+		term_tab_set(p, n->string);
+}