From 59a6679ae8adcc5a1dbaefa32d2e23c0872b4c3f Mon Sep 17 00:00:00 2001
From: Ingo Schwarze <schwarze@openbsd.org>
Date: Sun, 29 Jun 2014 22:38:47 +0000
Subject: Use the freshly improved roff_getname() function for the .de parsing
 routine, roff_block(), to correctly handle names terminated by escape
 sequences. Besides, this saves us 20 lines of code.

---
 roff.c | 56 ++++++++++++++++++--------------------------------------
 1 file changed, 18 insertions(+), 38 deletions(-)

(limited to 'roff.c')

diff --git a/roff.c b/roff.c
index 3ed620af..d946b6ad 100644
--- a/roff.c
+++ b/roff.c
@@ -910,14 +910,14 @@ roff_ccond(struct roff *r, int ln, int ppos)
 static enum rofferr
 roff_block(ROFF_ARGS)
 {
-	int		sv;
-	size_t		sz;
-	char		*name;
+	char		*name, *cp;
+	size_t		 namesz;
 
-	name = NULL;
+	name = cp = *bufp + pos;
+	namesz = 0;
 
 	if (ROFF_ig != tok) {
-		if ('\0' == (*bufp)[pos]) {
+		if ('\0' == *cp) {
 			mandoc_msg(MANDOCERR_NOARGS, r->parse, ln, ppos, NULL);
 			return(ROFF_IGN);
 		}
@@ -929,18 +929,14 @@ roff_block(ROFF_ARGS)
 
 		if (ROFF_de1 == tok)
 			tok = ROFF_de;
-		if (ROFF_de == tok)
-			name = *bufp + pos;
-		else
+		else if (ROFF_de != tok)
 			mandoc_msg(MANDOCERR_REQUEST, r->parse, ln, ppos,
 			    roffs[tok].name);
 
-		while ((*bufp)[pos] && ! isspace((unsigned char)(*bufp)[pos]))
-			pos++;
-
-		while (isspace((unsigned char)(*bufp)[pos]))
-			(*bufp)[pos++] = '\0';
-	}
+		namesz = roff_getname(r, &cp, ln, ppos);
+		name[namesz] = '\0';
+	} else
+		name = NULL;
 
 	roffnode_push(r, tok, name, ln, ppos);
 
@@ -950,36 +946,20 @@ roff_block(ROFF_ARGS)
 	 * appended from roff_block_text() in multiline mode.
 	 */
 
-	if (ROFF_de == tok)
-		roff_setstr(r, name, "", 0);
+	if (namesz && ROFF_de == tok)
+		roff_setstrn(&r->strtab, name, namesz, "", 0, 0);
 
-	if ('\0' == (*bufp)[pos])
+	if ('\0' == *cp)
 		return(ROFF_IGN);
 
 	/* If present, process the custom end-of-line marker. */
 
-	sv = pos;
-	while ((*bufp)[pos] && ! isspace((unsigned char)(*bufp)[pos]))
-		pos++;
+	name = cp;
+	namesz = roff_getname(r, &cp, ln, ppos);
+	if (namesz)
+		r->last->end = mandoc_strndup(name, namesz);
 
-	/*
-	 * Note: groff does NOT like escape characters in the input.
-	 * Instead of detecting this, we're just going to let it fly and
-	 * to hell with it.
-	 */
-
-	assert(pos > sv);
-	sz = (size_t)(pos - sv);
-
-	if (1 == sz && '.' == (*bufp)[sv])
-		return(ROFF_IGN);
-
-	r->last->end = mandoc_malloc(sz + 1);
-
-	memcpy(r->last->end, *bufp + sv, sz);
-	r->last->end[(int)sz] = '\0';
-
-	if ((*bufp)[pos])
+	if ('\0' != *cp)
 		mandoc_msg(MANDOCERR_ARGSLOST, r->parse, ln, pos, NULL);
 
 	return(ROFF_IGN);
-- 
cgit