Imported Upstream version 93u+upstream

1 files changed, 77 insertions, 0 deletions

diff --git a/src/lib/libast/string/fmtident.c b/src/lib/libast/string/fmtident.c
new file mode 100644
index 0000000..0ffab5c
--- /dev/null
+++ b/src/lib/libast/string/fmtident.c
@@ -0,0 +1,77 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              Information and Software Systems Research               *
+*                            AT&T Research                             *
+*                           Florham Park NJ                            *
+*                                                                      *
+*                 Glenn Fowler <gsf@research.att.com>                  *
+*                  David Korn <dgk@research.att.com>                   *
+*                   Phong Vo <kpv@research.att.com>                    *
+*                                                                      *
+***********************************************************************/
+#pragma prototyped
+
+#include <ast.h>
+#include <ctype.h>
+
+#define IDENT	01
+#define USAGE	02
+
+/*
+ * format what(1) and/or ident(1) string a
+ */
+
+char*
+fmtident(const char* a)
+{
+	register char*	s = (char*)a;
+	register char*	t;
+	char*		buf;
+	int		i;
+
+	i = 0;
+	for (;;)
+	{
+		while (isspace(*s))
+			s++;
+		if (s[0] == '[')
+		{
+			while (*++s && *s != '\n');
+			i |= USAGE;
+		}
+		else if (s[0] == '@' && s[1] == '(' && s[2] == '#' && s[3] == ')')
+			s += 4;
+		else if (s[0] == '$' && s[1] == 'I' && s[2] == 'd' && s[3] == ':' && isspace(s[4]))
+		{
+			s += 5;
+			i |= IDENT;
+		}
+		else
+			break;
+	}
+	if (i)
+	{
+		i &= IDENT;
+		for (t = s; isprint(*t) && *t != '\n'; t++)
+			if (i && t[0] == ' ' && t[1] == '$')
+				break;
+		while (t > s && isspace(t[-1]))
+			t--;
+		i = t - s;
+		buf = fmtbuf(i + 1);
+		memcpy(buf, s, i);
+		s = buf;
+		s[i] = 0;
+	}
+	return s;
+}