openatx/uiautomator2

用watcher监听弹框，对于正则匹配的内容为什么开头必须加^

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#698 opened on Jul 5, 2021

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help wanted

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Description

现象

类似于这样的弹框，按照如下操作，字符串必须得加^才可以正常匹配，否则不可以，但是按照正常的正则语法不加也是可以匹配到的 image

# 可以匹配到
watcher.when('^(下载|更新|重启|移入管控|去设置|去开启)', '^(取消|稍后|关闭|跳过|再想想)')

# 无法匹配到
watcher.when('下载|更新|重启|移入管控|去设置|去开启', '取消|稍后|关闭|跳过|再想想')

Contributor guide

Research direction
Check the implementation of watcher.when to see if it uses Python's re.match (which requires anchoring at start) instead of re.search. The issue suggests that the regex pattern is being matched against the full string from the beginning, so adding ^ works. Trace how the pattern is applied in the source code.
Tech stack
python
Domain
mobile
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45