fix: minor update

README.md

@@ -195,7 +195,9 @@ assert state.is_nil()
 ### `GreedyTokenizer`
 
 ```python
-vocab = ['歌曲', '聆听歌曲', '播放歌曲', '歌词', '查看歌词', '听歌', '曲折']
+from general_sam import GeneralSAM, GreedyTokenizer, build_trie_from_chars
+
+vocab = ['a', 'ab', 'b', 'bc', 'c', 'd', 'e', 'f', 'cd', 'abcde']
 trie, token_to_trie_node = build_trie_from_chars(vocab)
 
 trie_node_to_token = [-1] * trie.num_of_nodes()
@@ -208,12 +210,9 @@ tokenizer = GreedyTokenizer.from_sam_and_trie(sam, trie)
 def tokenize(s: str):
     return [(trie_node_to_token[i], j) for i, j in tokenizer.tokenize_str(s)]
 
-assert tokenize('歌曲折') == [(0, 2), (-1, 1)]
-assert tokenize('听歌曲') == [(5, 2), (-1, 1)]
-assert tokenize('听歌曲折') == [(5, 2), (6, 2)]
-assert tokenize('聆听歌曲折') == [(1, 4), (-1, 1)]
-assert tokenize('查看歌词歌曲') == [(4, 4), (0, 2)]
-assert tokenize('一起播放歌曲并共享歌词') == [(-1, 2), (2, 4), (-1, 3), (3, 2)]
+assert tokenize('abcde') == [(9, 5)]
+assert tokenize('abcdf') == [(1, 2), (8, 2), (7, 1)]
+assert tokenize('abca') == [(1, 2), (4, 1), (0, 1)]
 ```
 
 ## License

general_sam/general_sam.pyi

@@ -39,7 +39,7 @@ class Trie:
     ) -> TrieNode: ...
 
 class GeneralSAMState:
-    def is_in_str(self) -> bool: ...
+    def is_in_chars(self) -> bool: ...
     def is_in_bytes(self) -> bool: ...
     def get_node_id(self) -> GeneralSAMNodeID: ...
     def is_nil(self) -> bool: ...
@@ -79,7 +79,7 @@ class GeneralSAM:
     def from_bytes(s: bytes) -> 'GeneralSAM': ...
     @staticmethod
     def from_trie(trie: Trie) -> 'GeneralSAM': ...
-    def is_in_str(self) -> bool: ...
+    def is_in_chars(self) -> bool: ...
     def is_in_bytes(self) -> bool: ...
     def num_of_nodes(self) -> int: ...
     def get_root_state(self) -> GeneralSAMState: ...
@@ -89,5 +89,8 @@ class GeneralSAM:
 class GreedyTokenizer:
     @staticmethod
     def from_sam_and_trie(sam: GeneralSAM, trie: Trie) -> 'GreedyTokenizer': ...
+    def get_sam(self) -> GeneralSAM: ...
+    def is_in_chars(self) -> bool: ...
+    def is_in_bytes(self) -> bool: ...
     def tokenize_str(self, s: str) -> Sequence[Tuple[TrieNodeID, int]]: ...
     def tokenize_bytes(self, s: bytes) -> Sequence[Tuple[TrieNodeID, int]]: ...

src/tokenizer.rs

@@ -38,6 +38,18 @@ pub struct GreedyTokenizer(pub Arc<SharedGreedyTokenizer>);
 
 #[pymethods]
 impl GreedyTokenizer {
+    pub fn get_sam(&self) -> GeneralSAM {
+        GeneralSAM(self.0.borrow_sam().0.clone())
+    }
+
+    pub fn is_in_chars(&self) -> bool {
+        self.0.borrow_sam().is_in_chars()
+    }
+
+    pub fn is_in_bytes(&self) -> bool {
+        self.0.borrow_sam().is_in_bytes()
+    }
+
     #[staticmethod]
     pub fn from_sam_and_trie(sam: &GeneralSAM, trie: &Trie) -> PyResult<Self> {
         SharedGreedyTokenizer::from_sam_and_trie(sam, trie)

tests/test_general_sam.py

@@ -3,6 +3,7 @@
 
 def test_bytes_abcbc():
     sam = GeneralSAM.from_bytes(b'abcbc')
+    assert sam.is_in_bytes()
 
     state = sam.get_root_state()
     state.feed_bytes(b'cbc')
@@ -15,6 +16,8 @@ def test_bytes_abcbc():
 
 def test_chars_abcbc():
     sam = GeneralSAM.from_chars('abcbc')
+    assert sam.is_in_chars()
+
     state = sam.get_root_state()
 
     state.feed_chars('b')
@@ -30,6 +33,7 @@ def test_chars_abcbc():
 def test_simple_sam_from_trie():
     trie, _ = build_trie_from_chars(['hello', 'Chielo'])
     sam = GeneralSAM.from_trie(trie)
+    assert trie.is_in_chars() and sam.is_in_chars()
 
     def fetch_state(s: str) -> GeneralSAMState:
         state = sam.get_root_state()

tests/test_greedy_tokenizer.py

@@ -1,4 +1,29 @@
-from general_sam import GeneralSAM, GreedyTokenizer, build_trie_from_chars
+from general_sam import (
+    GeneralSAM,
+    GreedyTokenizer,
+    build_trie_from_bytes,
+    build_trie_from_chars,
+)
+
+
+def test_english_chars_tokenize():
+    vocab = ['a', 'ab', 'b', 'bc', 'c', 'd', 'e', 'f', 'cd', 'abcde']
+    trie, token_to_trie_node = build_trie_from_chars(vocab)
+
+    trie_node_to_token = [-1] * trie.num_of_nodes()
+    for i, j in enumerate(token_to_trie_node):
+        trie_node_to_token[j] = i
+
+    sam = GeneralSAM.from_trie(trie)
+    tokenizer = GreedyTokenizer.from_sam_and_trie(sam, trie)
+    assert tokenizer.is_in_chars()
+
+    def tokenize(s: str):
+        return [(trie_node_to_token[i], j) for i, j in tokenizer.tokenize_str(s)]
+
+    assert tokenize('abcde') == [(9, 5)]
+    assert tokenize('abcdf') == [(1, 2), (8, 2), (7, 1)]
+    assert tokenize('abca') == [(1, 2), (4, 1), (0, 1)]
 
 
 def test_chinese_chars_tokenize():
@@ -11,6 +36,7 @@ def test_chinese_chars_tokenize():
 
     sam = GeneralSAM.from_trie(trie)
     tokenizer = GreedyTokenizer.from_sam_and_trie(sam, trie)
+    assert tokenizer.is_in_chars()
 
     def tokenize(s: str):
         return [(trie_node_to_token[i], j) for i, j in tokenizer.tokenize_str(s)]
@@ -21,3 +47,36 @@ def tokenize(s: str):
     assert tokenize('聆听歌曲折') == [(1, 4), (-1, 1)]
     assert tokenize('查看歌词歌曲') == [(4, 4), (0, 2)]
     assert tokenize('一起播放歌曲并共享歌词') == [(-1, 2), (2, 4), (-1, 3), (3, 2)]
+
+
+def test_chinese_bytes_tokenize():
+    vocab = ['歌曲', '聆听歌曲', '播放歌曲', '歌词', '查看歌词', '听歌', '曲折']
+    vocab = [i.encode() for i in vocab]
+    trie, token_to_trie_node = build_trie_from_bytes(vocab)
+
+    trie_node_to_token = [-1] * trie.num_of_nodes()
+    for i, j in enumerate(token_to_trie_node):
+        trie_node_to_token[j] = i
+
+    sam = GeneralSAM.from_trie(trie)
+    tokenizer = GreedyTokenizer.from_sam_and_trie(sam, trie)
+    assert tokenizer.is_in_bytes()
+
+    def tokenize_str(s: str):
+        return [trie_node_to_token[i] for i, _ in tokenizer.tokenize_str(s)]
+
+    def tokenize_bytes(s: str):
+        return [trie_node_to_token[i] for i, _ in tokenizer.tokenize_bytes(s.encode())]
+
+    def tokenize(s: str):
+        a = tokenize_str(s)
+        b = tokenize_bytes(s)
+        assert a == b
+        return a
+
+    assert tokenize('歌曲折') == [0, -1]
+    assert tokenize('听歌曲') == [5, -1]
+    assert tokenize('听歌曲折') == [5, 6]
+    assert tokenize('聆听歌曲折') == [1, -1]
+    assert tokenize('查看歌词歌曲') == [4, 0]
+    assert tokenize('一起播放歌曲并共享歌词') == [-1, 2, -1, 3]