### GKD Global Rule Example (JSON5)

Source: https://gkd.li/guide/subscription

An example of a global rule in GKD, applicable across different applications. This rule defines conditions for actions like skipping splash ads, including matching text, visibility, and action limits.

```json5
{
  key: 0,
  name: '开屏广告',
  fastQuery: true,
  matchTime: 10000,
  actionMaximum: 1,
  resetMatch: 'app',
  rules: [
    {
      key: 0,
      matches: '[text*="跳过"][text.length<10][visibleToUser=true]',
    },
  ],
}
```

--------------------------------

### GKD App Rule Example (JSON5)

Source: https://gkd.li/guide/subscription

An example of an app-specific rule for GKD, used to target elements within a particular application. This rule is derived from a snapshot and specifies an ID, name, and a group with matching rules.

```json5
{
  id: 'com.zhihu.android',
  name: '知乎',
  groups: [
    {
      key: 0,
      name: '开屏广告',
      rules: { matches: 'TextView[id="com.zhihu.android:id/btn_skip"]' },
      snapshotUrls: ['https://i.gkd.li/i/13070251'],
    },
  ],
}
```

--------------------------------

### GKD App Rule Group Example (JSON5)

Source: https://gkd.li/guide/subscription

Demonstrates how to define an app rule group in GKD, which can contain multiple rules for a specific app's functionality, like handling pop-up dialogs. It includes fields for a key, name, and a list of rules with match conditions and snapshot URLs.

```json5
{
  key: 1,
  name: '全屏广告-会员活动弹窗',
  rules: [
    {
      key: 0,
      fastQuery: true,
      activityIds: 'com.blued.android.core.ui.TransparentActivity',
      matches: '[vid="img_close"]',
      snapshotUrls: 'https://i.gkd.li/i/14310618',
    },
  ],
}
```

--------------------------------

### Combine Multiple Selectors

Source: https://gkd.li/guide/example

A complex selector combining multiple relationships for advanced node targeting.

```selector
ImageView < FrameLayout <n ViewGroup[desc^="直播"] - ViewGroup >4 FrameLayout[index=0] +2 FrameLayout > @TextView[index=parent.childCount.minus(1)] <<n FrameLayout[vid="content"]
```

--------------------------------

### Select Parent Nodes

Source: https://gkd.li/guide/example

Selectors for finding parent nodes based on their child elements.

```selector
FrameLayout[vid="cover_layout"] < ViewGroup[desc^="直播"]
ViewGroup[vid="live_text_container"] <3 ViewGroup[desc^="直播"]
TextView[vid="title_v2"] <n ViewGroup[desc^="直播"]
```

--------------------------------

### Select Root Nodes

Source: https://gkd.li/guide/example

Selectors for matching root-level nodes based on depth or absence of a parent.

```selector
[parent=null]
[depth=0]
```

--------------------------------

### Basic GKD Subscription Rule Structure (JSON5)

Source: https://gkd.li/guide/subscription

Defines the fundamental structure of a GKD subscription file using JSON5 syntax. This includes fields for ID, name, version, author, update URLs, and app/category information. JSON5 allows for comments and unquoted keys.

```json5
// gkd.json5
{
  id: 233,
  name: 'Subscription',
  version: 0,
  author: 'author',
  updateUrl: 'https://gist.github.com/lisonge/3f5693182ad4ef5e307be760dba22bcb/raw/gkd.json5',
  checkUpdateUrl: 'https://gist.github.com/lisonge/3f5693182ad4ef5e307be760dba22bcb/raw/gkd.json5',
  supportUri: 'https://gkd.li/',
  categories: [],
  globalGroups: [],
  apps: [],
}
```

--------------------------------

### Select Sibling Nodes

Source: https://gkd.li/guide/example

Selectors for matching sibling nodes based on adjacency or relative position.

```selector
ViewGroup[desc="个人主页，按钮"] + LinearLayout[desc="搜索栏，按钮"]
@LinearLayout[desc="搜索栏，按钮"] - ViewGroup[desc="个人主页，按钮"]
[vid="cover_layout"] +n [text$="顶级入耳"]
@[text$="顶级入耳"] -n [vid="cover_layout"]
```

--------------------------------

### Select Last Child Nodes

Source: https://gkd.li/guide/example

Selectors that target nodes which are the last child of their parent.

```selector
ImageView[index=parent.childCount.minus(1)]
```

--------------------------------

### Select Child Nodes

Source: https://gkd.li/guide/example

Selectors that match child nodes based on their direct or indirect parent elements.

```selector
LinearLayout > ImageView
ViewGroup[vid="avatar_layout"] >2 ImageView
FrameLayout[vid="content_layout"] >n ImageView[vid="search_icon"]
```

--------------------------------

### Find Descendants Within Parent

Source: https://gkd.li/guide/example

Selectors to search for descendant nodes within a specified parent's scope.

```selector
@[text="直播"] <<n ViewGroup[vid="live_text_container"]
LinearLayout > @[text="直播"] <<n [vid="swipe_layout"]
```

--------------------------------

### GKD Disabled Activity IDs (JSON5)

Source: https://gkd.li/guide/subscription

A list of activity IDs to be disabled for a specific rule group in GKD. This is used to prevent certain UI elements or activities from appearing or functioning.

```json5
com.tencent.mm.plugin.sns.ui.SnsTimeLineUI
com.tencent.mm.plugin.sns.ui.improve.ImproveSnsTimelineUI
```

--------------------------------

### 使用正则表达式匹配数字字符

Source: https://gkd.li/guide/selector

演示如何在 GKD 选择器中使用正则表达式匹配数字（\d）。由于处于字符串环境中，需对反斜杠进行适当转义。

```txt
TextView[text~="\\d"]
```

--------------------------------

### 匹配包含反斜杠字符的 TextView 文本

Source: https://gkd.li/guide/selector

展示如何匹配实际包含反斜杠字符（\）的文本内容，涉及多层转义处理。

```json5
{
  matches: 'TextView[text="\\\\"]',
}
```

--------------------------------

### 匹配包含换行符的 TextView 文本

Source: https://gkd.li/guide/selector

展示如何在 GKD 选择器中匹配具有特定转义字符（如换行）的文本内容。由于嵌套在 JSON 中，需要进行双重转义。

```json5
{
  matches: 'TextView[text="\\\\n"]',
}
```

--------------------------------

### 匹配正则中的反斜杠字符

Source: https://gkd.li/guide/selector

说明在正则表达式中匹配一个反斜杠字符所需的转义方式，考虑 JSON 层和正则层的双重转义。

```json5
{
  matches: 'TextView[text~="\\\\\\\\"]',
}
```

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