Move mdoc_isdelim() into mandoc.h as mandoc_isdelim(). This allows the

removal of manual delimiter checks in html.c and term.c.  Finally, add
the escaped period as a closing delimiter, removing a TODO to this
effect.

1 files changed, 51 insertions, 5 deletions

diff --git a/mandoc.c b/mandoc.c
index e4c5ca6f..aa934217 100644
--- a/mandoc.c
+++ b/mandoc.c
@@ -363,7 +363,6 @@ mandoc_getarg(char **cpp, mandocmsg msg, void *data, int ln, int *pos)
 	return(start);
 }
 
-
 static int
 a2time(time_t *t, const char *fmt, const char *p)
 {
@@ -381,7 +380,6 @@ a2time(time_t *t, const char *fmt, const char *p)
 	return(0);
 }
 
-
 static char *
 time2a(time_t t)
 {
@@ -417,7 +415,6 @@ fail:
 	return(NULL);
 }
 
-
 char *
 mandoc_normdate(char *in, mandocmsg msg, void *data, int ln, int pos)
 {
@@ -439,7 +436,6 @@ mandoc_normdate(char *in, mandocmsg msg, void *data, int ln, int pos)
 	return(out ? out : mandoc_strdup(in));
 }
 
-
 int
 mandoc_eos(const char *p, size_t sz, int enclosed)
 {
@@ -483,7 +479,6 @@ mandoc_eos(const char *p, size_t sz, int enclosed)
 	return(found && !enclosed);
 }
 
-
 int
 mandoc_hyph(const char *start, const char *c)
 {
@@ -510,3 +505,54 @@ mandoc_hyph(const char *start, const char *c)
 
 	return(1);
 }
+
+/*
+ * Check if a string is a punctuation delimiter.  This only applies to
+ * mdoc(7) documents, but as it's used in both front-ends and back-ends,
+ * it needs to go here (instead of, say, in libmdoc.h).
+ */
+enum mdelim
+mandoc_isdelim(const char *p)
+{
+
+	if ('\0' == p[0])
+		return(DELIM_NONE);
+
+	if ('\0' == p[1])
+		switch (p[0]) {
+		case('('):
+			/* FALLTHROUGH */
+		case('['):
+			return(DELIM_OPEN);
+		case('|'):
+			return(DELIM_MIDDLE);
+		case('.'):
+			/* FALLTHROUGH */
+		case(','):
+			/* FALLTHROUGH */
+		case(';'):
+			/* FALLTHROUGH */
+		case(':'):
+			/* FALLTHROUGH */
+		case('?'):
+			/* FALLTHROUGH */
+		case('!'):
+			/* FALLTHROUGH */
+		case(')'):
+			/* FALLTHROUGH */
+		case(']'):
+			return(DELIM_CLOSE);
+		default:
+			return(DELIM_NONE);
+		}
+
+	if ('\\' != p[0])
+		return(DELIM_NONE);
+
+	if (0 == strcmp(p, "\\."))
+		return(DELIM_CLOSE);
+	if (0 == strcmp(p, "\\*(Ba"))
+		return(DELIM_MIDDLE);
+
+	return(DELIM_NONE);
+}