Extract regcurly as a static inline function.

This patch extracts regcurly from regcomp.c and converts it
to a static inline function in a new file dquote_static.c
that is now #included by regcomp.c and toke.c.  This change
will require 'make regen'.

1 files changed, 51 insertions, 0 deletions

diff --git a/dquote_static.c b/dquote_static.c
new file mode 100644
index 0000000000..c6d22e2dd0
--- /dev/null
+++ b/dquote_static.c
@@ -0,0 +1,51 @@
+/*    dquote_static.c
+ *
+ * This file contains static inline functions that are related to
+ * parsing double-quotish expressions, but are used in more than
+ * one file.
+ *
+ * It is currently #included by regcomp.c and toke.c.
+*/
+
+/*
+ - regcurly - a little FSA that accepts {\d+,?\d*}
+    Pulled from regcomp.c.
+ */
+
+/* embed.pl doesn't yet know how to handle static inline functions, so
+   manually decorate it here with gcc-style attributes.
+*/
+PERL_STATIC_INLINE I32
+regcurly(register const char *s)
+    __attribute__warn_unused_result__
+    __attribute__pure__
+    __attribute__nonnull__(1);
+
+PERL_STATIC_INLINE I32
+regcurly(register const char *s)
+{
+    assert(s);
+
+    if (*s++ != '{')
+	return FALSE;
+    if (!isDIGIT(*s))
+	return FALSE;
+    while (isDIGIT(*s))
+	s++;
+    if (*s == ',')
+	s++;
+    while (isDIGIT(*s))
+	s++;
+    if (*s != '}')
+	return FALSE;
+    return TRUE;
+}
+/*
+ * Local variables:
+ * c-indentation-style: bsd
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ *
+ * ex: set ts=8 sts=4 sw=4 noet:
+ */