legado-book-source-developer（Legado 书源开发者）

Legado Book Source Developer

A toolkit for creating, debugging, and managing Legado book sources. Includes analysis tools, real book source examples, and a knowledge base built from Legado source code.

Quick Start

1. Detect encoding → 2. Fetch real HTML → 3. Query knowledge base → 4. Analyze structure → 5. Create book source

Rules should be derived from actual HTML analysis rather than assumptions.

Usage Scope

This skill is intended for developing book sources for websites the user owns or has authorization to access. The included tools (URL analysis, HTML fetching, source uploading) should only be used on target sites with the user's explicit consent. Do not use these tools for unauthorized scraping, bypassing access controls, or accessing content without permission.

Tools

Knowledge Query

HTML Analysis

Book Source Management

Analysis Scripts (in tools/)

No Python? See references/no_python_workflow.md for using host MCP tools (browser, HTTP, code execution).

3-Phase Workflow

Phase 1: Information Collection

Step 1: Query Knowledge Base

search_knowledge("CSS选择器格式 提取类型 @text @html @href @src")
get_real_book_source_examples(limit=5)
get_book_source_templates(limit=3)

Step 2: Detect Encoding (once, at start)

detect_charset(url="http://example.com")

• UTF-8 → omit charset (default)
• GBK/GB2312 → add "charset":"gbk" to all requests

Step 3: Fetch Real HTML

smart_fetch_html(url="http://example.com/search", charset="gbk")
smart_fetch_html(url="http://example.com/search", method="POST",
                 body="keyword={{key}}&t=1", charset="gbk")

Step 4: Analyze Structure

smart_web_analyzer(html="...")
smart_bookinfo_analyzer(html="...")
smart_toc_analyzer(html="...")
smart_content_analyzer(html="...")

Phase 2: Review

1. Write rules based on knowledge base + real HTML analysis
2. Validate CSS selectors, extraction types, regex format
3. Handle special cases (no cover, lazy loading, merged info)

When uncertain, ask the user rather than guessing.

Phase 3: Create Book Source

1. Prepare complete JSON with all required fields
2. Call edit_book_source(complete_source="完整JSON")
3. Output as standard JSON array (no comments, no code blocks)

Rule String Format

CSS选择器@提取类型##正则表达式##替换内容

Extraction Types:

• @text — text content (includes children)
• @ownText — element text only (excludes children)
• @html — HTML structure
• @textNode — text nodes
• @href — link URL
• @src — image source
• @js — JavaScript processing

Numeric Indices:

• .0 = first, .-1 = last (NOT :first-child / :last-child)

Text Selection:

• text.关键词 (NOT :contains())

Common Patterns

Standard list with cover:

{"bookList": ".book-list .item", "name": ".title@text", "bookUrl": "a@href", "coverUrl": "img@src"}

No cover on search page:

{"coverUrl": ""}

Lazy loading images:

{"coverUrl": "img@data-original||img@src"}

nextContentUrl rule: Chapter number changes → SET it. Page number only → LEAVE EMPTY.

Known Constraints

Unsupported fields (not in Legado source):

• prevContentUrl does not exist
• :contains() pseudo-class is not supported (use text.关键词)
• :first-child / :last-child are not supported (use .0 / .-1)

Recommended practices:

• Base rules on real HTML analysis rather than assumptions
• Query the knowledge base before writing rules
• Detect encoding once at the start

Required fields: See references/legado_data_structures.md for complete field specs from BookSource.kt, SearchRule.kt, TocRule.kt, ContentRule.kt, BookInfoRule.kt.

References

Most Used Patterns (from real sources)

CSS Selectors: img(40x), h1(30x), div(13x), content(12x), intro(11x), h3(9x)

Extraction Types: @href(81x), @text(72x), src(60x), @html(33x), @js(25x)