Added `sp' support to libman.

Added `\c' to known escapes (only used in man, but still).

8 files changed, 49 insertions, 6 deletions

diff --git a/libman.h b/libman.h
index be8e4369..4596a63c 100644
--- a/libman.h
+++ b/libman.h
@@ -49,6 +49,7 @@ enum	merr {
 	WNODATA,
 	WNOTITLE,
 	WESCAPE,
+	WNUMFMT,
 	WERRMAX
 };
 
diff --git a/man.c b/man.c
index e9bb7a56..8184dfef 100644
--- a/man.c
+++ b/man.c
@@ -34,6 +34,7 @@ const	char *const __man_merrnames[WERRMAX] = {
 	"document has no body", /* WNODATA */
 	"document has no title/section", /* WNOTITLE */
 	"invalid escape sequence", /* WESCAPE */
+	"invalid number format", /* WNUMFMT */
 };
 
 const	char *const __man_macronames[MAN_MAX] = {		 
@@ -42,7 +43,7 @@ const	char *const __man_macronames[MAN_MAX] = {
 	"IP",		"HP",		"SM",		"SB",
 	"BI",		"IB",		"BR",		"RB",
 	"R",		"B",		"I",		"IR",
-	"RI",		"na",		"i"
+	"RI",		"na",		"i",		"sp"
 	};
 
 const	char * const *man_macronames = __man_macronames;
diff --git a/man.h b/man.h
index 066fa354..55284253 100644
--- a/man.h
+++ b/man.h
@@ -42,7 +42,8 @@
 #define	MAN_RI		 20
 #define	MAN_na		 21
 #define	MAN_i		 22
-#define	MAN_MAX	 	 23
+#define	MAN_sp		 23
+#define	MAN_MAX	 	 24
 
 enum	man_type {
 	MAN_TEXT,
diff --git a/man_action.c b/man_action.c
index 1bb775f3..71f8dc3c 100644
--- a/man_action.c
+++ b/man_action.c
@@ -59,6 +59,7 @@ const	struct actions man_actions[MAN_MAX] = {
 	{ NULL }, /* RI */
 	{ NULL }, /* na */
 	{ NULL }, /* i */
+	{ NULL }, /* sp */
 };
 
 
diff --git a/man_macro.c b/man_macro.c
index df723e5e..1532b9c5 100644
--- a/man_macro.c
+++ b/man_macro.c
@@ -51,6 +51,7 @@ static	int man_flags[MAN_MAX] = {
 	FL_NLINE, /* RI */
 	0, /* na */
 	FL_NLINE, /* i */
+	0, /* sp */
 };
 
 int
diff --git a/man_term.c b/man_term.c
index 58f6f277..c211f43c 100644
--- a/man_term.c
+++ b/man_term.c
@@ -81,6 +81,7 @@ static const struct termact termacts[MAN_MAX] = {
 	{ pre_RI, NULL }, /* RI */
 	{ NULL, NULL }, /* na */
 	{ pre_I, post_I }, /* i */
+	{ NULL, NULL }, /* sp */
 };
 
 static	void		  print_head(struct termp *, 
diff --git a/man_validate.c b/man_validate.c
index 183d31c5..442bad54 100644
--- a/man_validate.c
+++ b/man_validate.c
@@ -18,6 +18,8 @@
 
 #include <assert.h>
 #include <ctype.h>
+#include <errno.h>
+#include <limits.h>
 #include <stdarg.h>
 #include <stdlib.h>
 
@@ -33,19 +35,22 @@ struct	man_valid {
 };
 
 static	int	  check_eq0(POSTARGS);
+static	int	  check_eq1(POSTARGS);
 static	int	  check_ge1(POSTARGS);
 static	int	  check_ge2(POSTARGS);
 static	int	  check_le1(POSTARGS);
 static	int	  check_le2(POSTARGS);
 static	int	  check_le5(POSTARGS);
-static	int	  check_text(POSTARGS);
 static	int	  check_root(POSTARGS);
+static	int	  check_sp(POSTARGS);
+static	int	  check_text(POSTARGS);
 
-static	v_post	  posts_le1[] = { check_le1, NULL };
-static	v_post	  posts_le2[] = { check_le2, NULL };
-static	v_post	  posts_ge1[] = { check_ge1, NULL };
 static	v_post	  posts_eq0[] = { check_eq0, NULL };
+static	v_post	  posts_ge1[] = { check_ge1, NULL };
 static	v_post	  posts_ge2_le5[] = { check_ge2, check_le5, NULL };
+static	v_post	  posts_le1[] = { check_le1, NULL };
+static	v_post	  posts_le2[] = { check_le2, NULL };
+static	v_post	  posts_sp[] = { check_sp, NULL };
 
 static	const struct man_valid man_valids[MAN_MAX] = {
 	{ posts_eq0 }, /* br */
@@ -71,6 +76,7 @@ static	const struct man_valid man_valids[MAN_MAX] = {
 	{ NULL }, /* RI */
 	{ posts_eq0 }, /* na */
 	{ NULL }, /* i */
+	{ posts_sp }, /* sp */
 };
 
 
@@ -162,9 +168,38 @@ check_##name(POSTARGS) \
 }
 
 INEQ_DEFINE(0, ==, eq0)
+INEQ_DEFINE(1, ==, eq1)
 INEQ_DEFINE(1, >=, ge1)
 INEQ_DEFINE(2, >=, ge2)
 INEQ_DEFINE(1, <=, le1)
 INEQ_DEFINE(2, <=, le2)
 INEQ_DEFINE(5, <=, le5)
 
+
+static int
+check_sp(POSTARGS)
+{
+	long		 lval;
+	char		*ep, *buf;
+
+	if (NULL == m->last->child)
+		return(1);
+	else if ( ! check_eq1(m, n))
+		return(0);
+
+	assert(MAN_TEXT == m->last->child->type);
+	buf = m->last->child->string;
+	assert(buf);
+	
+	/* From OpenBSD's strtol(3). */
+	errno = 0;
+	lval = strtol(buf, &ep, 10);
+	if (buf[0] == '\0' || *ep != '\0')
+		return(man_nerr(m, m->last->child, WNUMFMT));
+
+	if ((errno == ERANGE && (lval == LONG_MAX || lval == LONG_MIN)) ||
+			(lval > INT_MAX || lval < 0))
+		return(man_nerr(m, m->last->child, WNUMFMT));
+
+	return(1);
+}
diff --git a/mandoc.c b/mandoc.c
index 20bd5c88..0ec1d573 100644
--- a/mandoc.c
+++ b/mandoc.c
@@ -59,6 +59,8 @@ mandoc_special(const char *p)
 		/* FALLTHROUGH */
 	case (':'):
 		/* FALLTHROUGH */
+	case ('c'):
+		return(2);
 	case ('e'):
 		return(2);
 	case ('f'):