From 55c09aeaa25b4bb88a50e09ba68fa6ff00a6d676 Mon Sep 17 00:00:00 2001
From: shixian.shi <shixian.shi@alibaba-inc.com>
Date: 星期一, 15 一月 2024 20:10:39 +0800
Subject: [PATCH] update readme, fix seaco bug
---
funasr/tokenizer/abs_tokenizer.py | 98 ++++++++++++++++++++++++++++++++++++++++++++++---
1 files changed, 92 insertions(+), 6 deletions(-)
diff --git a/funasr/tokenizer/abs_tokenizer.py b/funasr/tokenizer/abs_tokenizer.py
index fc2ccb3..548bf06 100644
--- a/funasr/tokenizer/abs_tokenizer.py
+++ b/funasr/tokenizer/abs_tokenizer.py
@@ -2,13 +2,99 @@
from abc import abstractmethod
from typing import Iterable
from typing import List
+from pathlib import Path
+from typing import Dict
+from typing import Iterable
+from typing import List
+from typing import Union
+import json
+
+import numpy as np
class AbsTokenizer(ABC):
- @abstractmethod
- def text2tokens(self, line: str) -> List[str]:
- raise NotImplementedError
+ @abstractmethod
+ def text2tokens(self, line: str) -> List[str]:
+ raise NotImplementedError
+
+ @abstractmethod
+ def tokens2text(self, tokens: Iterable[str]) -> str:
+ raise NotImplementedError
- @abstractmethod
- def tokens2text(self, tokens: Iterable[str]) -> str:
- raise NotImplementedError
+
+class BaseTokenizer(ABC):
+ def __init__(self, token_list: Union[Path, str, Iterable[str]] = None,
+ unk_symbol: str = "<unk>",
+ **kwargs,
+ ):
+
+ if token_list is not None:
+ if isinstance(token_list, (Path, str)) and token_list.endswith(".txt"):
+ token_list = Path(token_list)
+ self.token_list_repr = str(token_list)
+ self.token_list: List[str] = []
+
+ with token_list.open("r", encoding="utf-8") as f:
+ for idx, line in enumerate(f):
+ line = line.rstrip()
+ self.token_list.append(line)
+ elif isinstance(token_list, (Path, str)) and token_list.endswith(".json"):
+ token_list = Path(token_list)
+ self.token_list_repr = str(token_list)
+ self.token_list: List[str] = []
+
+ with open(token_list, 'r', encoding='utf-8') as f:
+ self.token_list = json.load(f)
+
+
+ else:
+ self.token_list: List[str] = list(token_list)
+ self.token_list_repr = ""
+ for i, t in enumerate(self.token_list):
+ if i == 3:
+ break
+ self.token_list_repr += f"{t}, "
+ self.token_list_repr += f"... (NVocab={(len(self.token_list))})"
+
+ self.token2id: Dict[str, int] = {}
+ for i, t in enumerate(self.token_list):
+ if t in self.token2id:
+ raise RuntimeError(f'Symbol "{t}" is duplicated')
+ self.token2id[t] = i
+
+ self.unk_symbol = unk_symbol
+ if self.unk_symbol not in self.token2id:
+ raise RuntimeError(
+ f"Unknown symbol '{unk_symbol}' doesn't exist in the token_list"
+ )
+ self.unk_id = self.token2id[self.unk_symbol]
+
+ def encode(self, text):
+ tokens = self.text2tokens(text)
+ text_ints = self.tokens2ids(tokens)
+
+ return text_ints
+
+ def decode(self, text_ints):
+ token = self.ids2tokens(text_ints)
+ text = self.tokens2text(token)
+ return text
+
+ def get_num_vocabulary_size(self) -> int:
+ return len(self.token_list)
+
+ def ids2tokens(self, integers: Union[np.ndarray, Iterable[int]]) -> List[str]:
+ if isinstance(integers, np.ndarray) and integers.ndim != 1:
+ raise ValueError(f"Must be 1 dim ndarray, but got {integers.ndim}")
+ return [self.token_list[i] for i in integers]
+
+ def tokens2ids(self, tokens: Iterable[str]) -> List[int]:
+ return [self.token2id.get(i, self.unk_id) for i in tokens]
+
+ @abstractmethod
+ def text2tokens(self, line: str) -> List[str]:
+ raise NotImplementedError
+
+ @abstractmethod
+ def tokens2text(self, tokens: Iterable[str]) -> str:
+ raise NotImplementedError
\ No newline at end of file
--
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