micropython: add micropython component

components/language/micropython/tests/extmod/ure1.py

@@ -0,0 +1,138 @@
+try:
+    import ure as re
+except ImportError:
+    try:
+        import re
+    except ImportError:
+        print("SKIP")
+        raise SystemExit
+
+r = re.compile(".+")
+m = r.match("abc")
+print(m.group(0))
+try:
+    m.group(1)
+except IndexError:
+    print("IndexError")
+
+# conversion of re and match to string
+str(r)
+str(m)
+
+r = re.compile("(.+)1")
+m = r.match("xyz781")
+print(m.group(0))
+print(m.group(1))
+try:
+    m.group(2)
+except IndexError:
+    print("IndexError")
+
+r = re.compile("[a-cu-z]")
+m = r.match("a")
+print(m.group(0))
+m = r.match("z")
+print(m.group(0))
+m = r.match("d")
+print(m)
+m = r.match("A")
+print(m)
+print("===")
+
+r = re.compile("[^a-cu-z]")
+m = r.match("a")
+print(m)
+m = r.match("z")
+print(m)
+m = r.match("d")
+print(m.group(0))
+m = r.match("A")
+print(m.group(0))
+print("===")
+
+# '-' character within character class block
+print(re.match("[-a]+", "-a]d").group(0))
+print(re.match("[a-]+", "-a]d").group(0))
+print("===")
+
+r = re.compile("o+")
+m = r.search("foobar")
+print(m.group(0))
+try:
+    m.group(1)
+except IndexError:
+    print("IndexError")
+
+
+m = re.match(".*", "foo")
+print(m.group(0))
+
+m = re.search("w.r", "hello world")
+print(m.group(0))
+
+m = re.match("a+?", "ab")
+print(m.group(0))
+m = re.match("a*?", "ab")
+print(m.group(0))
+m = re.match("^ab$", "ab")
+print(m.group(0))
+m = re.match("a|b", "b")
+print(m.group(0))
+m = re.match("a|b|c", "c")
+print(m.group(0))
+
+# Case where anchors fail to match
+r = re.compile("^b|b$")
+m = r.search("abc")
+print(m)
+
+try:
+    re.compile("*")
+except:
+    print("Caught invalid regex")
+
+# bytes objects
+m = re.match(rb"a+?", b"ab")
+print(m.group(0))
+print("===")
+
+# escaping
+m = re.match(r"a\.c", "a.c")
+print(m.group(0) if m else "")
+m = re.match(r"a\.b", "abc")
+print(m is None)
+m = re.match(r"a\.b", "a\\bc")
+print(m is None)
+m = re.match(r"[a\-z]", "abc")
+print(m.group(0))
+m = re.match(r"[.\]]*", ".].]a")
+print(m.group(0))
+m = re.match(r"[.\]+]*", ".]+.]a")
+print(m.group(0))
+m = re.match(r"[a-f0-9x\-yz]*", "abxcd1-23")
+print(m.group(0))
+m = re.match(r"[a\\b]*", "a\\aa\\bb\\bbab")
+print(m.group(0))
+m = re.search(r"[a\-z]", "-")
+print(m.group(0))
+m = re.search(r"[a\-z]", "f")
+print(m is None)
+m = re.search(r"[a\]z]", "a")
+print(m.group(0))
+print(re.compile(r"[-a]").split("foo-bar"))
+print(re.compile(r"[a-]").split("foo-bar"))
+print(re.compile(r"[ax\-]").split("foo-bar"))
+print(re.compile(r"[a\-x]").split("foo-bar"))
+print(re.compile(r"[\-ax]").split("foo-bar"))
+print("===")
+
+# Module functions take str/bytes/re.
+for f in (re.match, re.search):
+    print(f(".", "foo").group(0))
+    print(f(b".", b"foo").group(0))
+    print(f(re.compile("."), "foo").group(0))
+    try:
+        f(123, "a")
+    except TypeError:
+        print("TypeError")
+print("===")