Merge pull request #64 from Hukeqing/master

根据模式串生成数据（字符串）

Author: Toto Lin

.gitignore

@@ -128,4 +128,7 @@ coverage.xml
 docs/_build/
 
 # PyBuilder
-target/
+target/
+
+# Pycharm
+venv

cyaron/string.py

@@ -1,7 +1,8 @@
-from .consts import ALPHABET_SMALL, SENTENCE_SEPARATORS, SENTENCE_TERMINATORS
+from .consts import ALPHABET_SMALL, SENTENCE_SEPARATORS, SENTENCE_TERMINATORS, NUMBERS
 from .utils import *
 from functools import reduce
 import random
+import xeger
 
 
 class String:
@@ -97,3 +98,12 @@ def random_paragraph(sentence_count_range, **kwargs):
         paragraph = reduce(lambda x, y: x + random.choice(sentence_joiners) + y, sentences)
         return paragraph
 
+    @staticmethod
+    def random_regular(*args, **kwargs):
+        pattern = args
+        limit_len = int(kwargs.get("limit", default="10"))
+        if (limit_len <= 1): limit_len = 10
+        if (list_like(args)):
+            pattern = random.choice(args)
+        _x = xeger.Xeger(limit=limit_len)
+        return _x.xeger(pattern)

cyaron/tests/str_test.py

@@ -1,5 +1,6 @@
 import unittest
 from cyaron import String
+import re
 
 
 class TestString(unittest.TestCase):
@@ -21,4 +22,9 @@ def test_random_sentence(self):
 
     def test_random_paragraph(self):
         # Only test for Errors
-        String.random_paragraph(10)
+        String.random_paragraph(10)
+
+    def test_random_regular(self):
+        pattern = r'[0-9]+\w_.{0,9}'
+        sentence = String.random_regular(pattern, limit=5)
+        self.assertTrue(re.match(pattern, sentence).group() == sentence)

requirements.txt

@@ -1 +1,2 @@
 pygraphviz
+xeger