Implement the roff \z escape sequence, intended to output the next

character without advancing the cursor position; implement it to
simply skip the next character, as it will usually be overwritten.

With this change, the pod2man(1) preamble user-defined string \*:,
intended to render as a diaeresis or umlaut diacritic above the
preceding character, is rendered in a slightly less ugly way,
though still not correctly.  It was rendered as "z.." and is now
rendered as ".".

Given that the definition of \*: uses elaborate manual \h positioning,
there is little chance for mandoc(1) to ever render it correctly,
but at least we can refrain from printing out a spurious "z", and
we can make the \z do something semi-reasonable for easier cases.

"just commit" kristaps@

1 files changed, 1 insertions, 0 deletions

diff --git a/term.h b/term.h
index ce1b4ed5..ccac729e 100644
--- a/term.h
+++ b/term.h
@@ -78,6 +78,7 @@ struct	termp {
 #define	TERMP_ANPREC	 (1 << 13)	/* See termp_an_pre(). */
 #define	TERMP_KEEP	 (1 << 14)	/* Keep words together. */
 #define	TERMP_PREKEEP	 (1 << 15)	/* ...starting with the next one. */
+#define	TERMP_SKIPCHAR	 (1 << 16)	/* Skip the next character. */
 	int		 *buf;		/* Output buffer. */
 	enum termenc	  enc;		/* Type of encoding. */
 	struct mchars	 *symtab;	/* Encoded-symbol table. */