英文模糊匹配

[dong-999]

当前想要在英文输入下也有换选词显示，已经禁用了分词功能，但是无法实现模糊搜索。比如词库中输入t对应the that this， 如何在不更改词库的前提下，输入th也可以匹配，并且输入的越多，匹配的越准确呐？

[ksqsf]

enable_completion: true

[dong-999]

schema:
schema_id: easy_en
name: "English"
version: "1.3"
author: "Rime Community"

switches:

• name: ascii_mode
  reset: 0
  states: [ 中文, 西文 ]

engine:
processors:
- key_binder
- ascii_composer
- recognizer
- speller
- punctuator
- selector
- express_editor
- navigator
segmentors:
# - match@luna_pinyin_eng
- matcher
- ascii_segmentor
- abc_segmentor
- punct_segmentor
- fallback_segmentor
translators:
- table_translator
- echo_translator
filters:
# - simplifier
- uniquifier

fallback_segmentor:
tag: unknown # 分段的标签
tip: "〔未知〕" # 候选词前的提示标识

menu:
page_size: 5
horizontal: true

punct_segmentor:
delimiters: " , "

speller:
algebra:
- derive/^([a-z]+)$/$1/
- derive/^([a-z]+)$/$1(-[a-z]+)*/

translator:
dictionary: easy_en
enable_sentence: false
enable_completion: true

easy_en:
split_sentence: false
enable_user_dict: true

ascii_composer:
switch_key:
Shift_L: clear

这是我整个的配置方案，按照你说的设置了，还是不行，能帮忙看下问题在哪吗？

enable_completion: true