Press n or j to go to the next uncovered block, b, p or k for the previous block.
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import { parseTree, visit } from 'jsonc-parser'
import * as vscode from 'vscode'
import { logger } from './logger'
export interface CodeBlockInfo {
code: string
start: number
end: number
range: vscode.Range
fieldName: string
language: string
}
export class CodeDetector {
private autoDetectFields: string[] = []
private enableAutoDetection: boolean = true
constructor() {
this.updateConfiguration()
}
updateConfiguration(): void {
const config = vscode.workspace.getConfiguration('vscode-json-string-code-editor')
this.autoDetectFields = config.get('autoDetectFields', ['adaptor', 'script', 'code', 'expression'])
this.enableAutoDetection = config.get('enableAutoDetection', true)
}
detectCodeAtPosition(document: vscode.TextDocument, position: vscode.Position): CodeBlockInfo | null {
const text = document.getText()
const offset = document.offsetAt(position)
try {
// 使用jsonc-parser解析JSON，支持注释和容错
const parseErrors: ParseError[] = []
const parsed = parseTree(text, parseErrors, {
allowTrailingComma: true,
allowEmptyContent: true,
disallowComments: false,
})
if (parsed) {
return this.findCodeInObjectWithAST(text, offset, document)
}
// 如果解析失败，尝试部分解析
return this.findCodeInPartialJson(text, offset, document)
}
catch (error) {
logger.error(`Error detecting code at position: ${error}`)
return null
}
}
detectAllCodeBlocks(document: vscode.TextDocument): CodeBlockInfo[] {
// 如果禁用了自动检测，返回空数组
if (!this.enableAutoDetection) {
return []
}
const text = document.getText()
const blocks: CodeBlockInfo[] = []
try {
// 使用自定义JSON解析器解析JSON，支持注释和容错
const parseErrors: ParseError[] = []
const parsed = parseTree(text, parseErrors, {
allowTrailingComma: true,
allowEmptyContent: true,
disallowComments: false,
})
if (parsed) {
this.findAllCodeBlocksWithAST(text, document, blocks)
}
else {
// 如果解析失败，使用正则表达式查找
this.findAllCodeBlocksWithRegex(text, document, blocks)
}
}
catch (error) {
logger.error(`Error detecting code at position: ${error}`)
this.findAllCodeBlocksWithRegex(text, document, blocks)
}
return blocks
}
private findCodeInObjectWithAST(text: string, offset: number, document: vscode.TextDocument): CodeBlockInfo | null {
let result: CodeBlockInfo | null = null
let currentProperty: string | null = null
const visitor: JSONVisitor = {
onObjectProperty: (property: string) => {
currentProperty = property
},
onLiteralValue: (value: any, valueOffset: number, valueLength: number) => {
if (result || !currentProperty) {
return
}
if (offset >= valueOffset && offset <= valueOffset + valueLength) {
if (this.isCodeField(currentProperty) && typeof value === 'string') {
// valueOffset包含引号，需要+1跳过开始引号，-1跳过结束引号
const codeStart = valueOffset + 1
const codeEnd = valueOffset + valueLength - 1
const startPos = document.positionAt(codeStart)
const endPos = document.positionAt(codeEnd)
const language = this.detectLanguage(currentProperty, value)
result = {
code: value,
start: codeStart,
end: codeEnd,
range: new vscode.Range(startPos, endPos),
fieldName: currentProperty,
language,
}
}
}
},
}
visit(text, visitor)
return result
}
private findCodeInPartialJson(text: string, offset: number, document: vscode.TextDocument): CodeBlockInfo | null {
// 简化的部分JSON解析，用于处理格式不完整的JSON
const lines = text.split('\n')
const position = document.positionAt(offset)
const currentLine = lines[position.line]
// 查找当前行或附近行的字段名和值
const fieldMatch = currentLine.match(/"([^"]+)"\s*:\s*"([^"]*)"/)
if (fieldMatch) {
const [, fieldName, value] = fieldMatch
if (this.isCodeField(fieldName)) {
const language = this.detectLanguage(fieldName, value)
const valueStart = currentLine.indexOf(`"${value}"`)
if (valueStart !== -1) {
const lineStart = document.offsetAt(new vscode.Position(position.line, 0))
const codeStart = lineStart + valueStart + 1
const codeEnd = codeStart + value.length
return {
code: value,
start: codeStart,
end: codeEnd,
range: new vscode.Range(
document.positionAt(codeStart),
document.positionAt(codeEnd),
),
fieldName,
language,
}
}
}
}
return null
}
private findAllCodeBlocksWithAST(text: string, document: vscode.TextDocument, blocks: CodeBlockInfo[]): void {
let currentProperty: string | null = null
const visitor: JSONVisitor = {
onObjectProperty: (property: string) => {
currentProperty = property
},
onLiteralValue: (value: any, valueOffset: number, valueLength: number) => {
if (!currentProperty) {
return
}
// 只检测配置中指定的字段或符合代码字段模式的字段
if (this.isCodeField(currentProperty) && typeof value === 'string' && value.trim().length > 0) {
// 检测语言类型
const language = this.detectLanguage(currentProperty, value)
// valueOffset包含引号，需要+1跳过开始引号，-1跳过结束引号
const codeStart = valueOffset + 1
const codeEnd = valueOffset + valueLength - 1
const startPos = document.positionAt(codeStart)
const endPos = document.positionAt(codeEnd)
blocks.push({
code: value,
start: codeStart,
end: codeEnd,
range: new vscode.Range(startPos, endPos),
fieldName: currentProperty,
language,
})
}
},
}
visit(text, visitor)
}
private findAllCodeBlocksWithRegex(text: string, document: vscode.TextDocument, blocks: CodeBlockInfo[]): void {
// 匹配字符串字段，但只处理配置中指定的字段或符合代码字段模式的字段
const regex = /"([^"]+)"\s*:\s*"((?:[^"\\]|\\.)*)"/g
let match = regex.exec(text)
while (match !== null) {
const fieldName = match[1]
const jsCode = match[2]
const unescapedCode = this.unescapeString(jsCode)
// 只检测配置中指定的字段或符合代码字段模式的字段
if (this.isCodeField(fieldName) && unescapedCode.trim().length > 0) {
const language = this.detectLanguage(fieldName, unescapedCode)
const fullMatch = match[0]
const startOffset = match.index + fullMatch.indexOf('"', fullMatch.indexOf(':')) + 1
const endOffset = startOffset + jsCode.length
const startPos = document.positionAt(startOffset)
const endPos = document.positionAt(endOffset)
blocks.push({
code: unescapedCode,
start: startOffset,
end: endOffset,
range: new vscode.Range(startPos, endPos),
fieldName,
language,
})
}
match = regex.exec(text)
}
}
public detectLanguage(key: string, value: string): string {
const keyLower = key.toLowerCase()
// 基于键名推断语言类型
if (keyLower.includes('sql') || keyLower.includes('query')) {
return 'sql'
}
if (keyLower.includes('html') || keyLower.includes('template')) {
return 'html'
}
if (keyLower.includes('css') || keyLower.includes('style')) {
return 'css'
}
if (keyLower.includes('xml')) {
return 'xml'
}
if (keyLower.includes('yaml') || keyLower.includes('yml')) {
return 'yaml'
}
if (keyLower.includes('markdown') || keyLower.includes('md')) {
return 'markdown'
}
if (keyLower.includes('python') || keyLower.includes('py')) {
return 'python'
}
if (keyLower.includes('typescript') || keyLower.includes('ts')) {
return 'typescript'
}
if (keyLower.includes('json')) {
return 'json'
}
if (keyLower.includes('javascript') || keyLower.includes('js')) {
return 'javascript'
}
if (keyLower.includes('java') && !keyLower.includes('javascript')) {
return 'java'
}
if (keyLower.includes('php')) {
return 'php'
}
if (keyLower.includes('shell') || keyLower.includes('bash') || keyLower.includes('sh')) {
return 'shellscript'
}
if (keyLower.includes('dockerfile') || keyLower.includes('docker')) {
return 'dockerfile'
}
if (keyLower.includes('go') || keyLower.includes('golang')) {
return 'go'
}
if (keyLower.includes('rust') || keyLower.includes('rs')) {
return 'rust'
}
if (keyLower.includes('cpp') || keyLower.includes('c++') || keyLower.includes('cxx')) {
return 'cpp'
}
if ((keyLower === 'c' || keyLower.includes('c_code') || keyLower.includes('c-code')) && !keyLower.includes('css')) {
return 'c'
}
// JavaScript/TypeScript 检测
if (/\bfunction\s*\(/.test(value) || value.includes('=>') || /\bconst\s+\w+/.test(value) || /\blet\s+\w+/.test(value)
|| /\bvar\s+\w+/.test(value) || value.includes('console.') || /\b(?:async|await)\b/.test(value)
|| /\b(?:import|export)\b/.test(value) || /\$\{[^}]+\}/.test(value)) {
// 进一步检测是否为 TypeScript
if (/:\s*(?:string|number|boolean|object|any|void)\b/.test(value)
|| /\b(?:interface|type|enum)\b/.test(value) || value.includes('<T>')) {
return 'typescript'
}
return 'javascript'
}
// C/C++ 检测 (需要在Python之前检测，避免printf被误判)
if (/#include\s*</.test(value) || /\bint\s+main\s*\(/.test(value)
|| /\b(?:printf|scanf|cout|cin)\b/.test(value) || /\b(?:struct|typedef)\b/.test(value)) {
if (/\b(?:class|namespace|template|std::)\b/.test(value) || value.includes('cout') || value.includes('cin')) {
return 'cpp'
}
return 'c'
}
// Python 检测
if (value.includes('def ') || value.includes('import ') || value.includes('from ')
|| (/\bprint\s*\(/.test(value) && !/#include/.test(value)) || value.includes('__init__') || value.includes('self.')
|| /^\s*#/.test(value) || /\bif\s+__name__\s*==\s*['"]__main__['"]/.test(value)) {
return 'python'
}
// SQL 检测
if (/\b(?:SELECT|INSERT|UPDATE|DELETE|CREATE|ALTER|DROP)\b/i.test(value)
|| /\b(?:FROM|WHERE|JOIN|GROUP BY|ORDER BY)\b/i.test(value)) {
return 'sql'
}
// HTML 检测
if (value.includes('<') && value.includes('>')
&& (/<\/?[a-z][\s\S]*>/i.test(value) || /<!DOCTYPE/i.test(value))) {
return 'html'
}
// CSS 检测
if (/\{[^}]*\}/.test(value) && (/[a-z-]+:[^;]+;/i.test(value)
|| /\.\w+\s*\{/.test(value) || /#\w+\s*\{/.test(value))) {
return 'css'
}
// Java 检测
if (/\b(?:public|private|protected)\s+(?:class|interface)\b/.test(value)
|| /\bSystem\.out\.print/.test(value) || /\bpublic\s+static\s+void\s+main/.test(value)
|| /\b(?:extends|implements)\b/.test(value)) {
return 'java'
}
// PHP 检测
if (value.includes('<?php') || /\$\w+/.test(value) || value.includes('echo ')
|| (/\b(?:function|class)\s+\w+/.test(value) && value.includes('$'))) {
return 'php'
}
// Shell 检测
if (value.startsWith('#!') || /\b(?:echo|ls|cd|mkdir|rm)\b/.test(value)
|| (/\$\{?\w+\}?/.test(value) && !/\$\{[^}]+\}/.test(value))) {
return 'shellscript'
}
// JSON 检测
if ((value.startsWith('{') && value.endsWith('}'))
|| (value.startsWith('[') && value.endsWith(']'))) {
try {
JSON.parse(value)
return 'json'
}
catch {
// 不是有效的 JSON
}
}
// Go 检测
if (/\bpackage\s+\w+/.test(value) || /\bfunc\s+\w+/.test(value)
|| (/\b(?:import|var|const)\s+/.test(value) && value.includes('fmt.'))) {
return 'go'
}
// Rust 检测
if (/\bfn\s+\w+/.test(value) || /\blet\s+mut\b/.test(value)
|| value.includes('println!') || /\b(?:struct|enum|impl)\b/.test(value)) {
return 'rust'
}
// YAML 检测
if (/^\s*\w+:\s*/.test(value) && (value.includes('\n') || value.includes('- '))) {
return 'yaml'
}
// XML 检测
if (value.includes('<?xml') || (value.includes('<') && value.includes('>')
&& /<\w[^>]*>.*<\/\w+>/.test(value))) {
return 'xml'
}
// Dockerfile 检测
if (/^\s*(?:FROM|RUN|COPY|ADD|WORKDIR|EXPOSE|CMD|ENTRYPOINT)\b/im.test(value)) {
return 'dockerfile'
}
return 'javascript'
}
private isCodeField(fieldName: string): boolean {
// 检查是否为已知的代码字段
if (this.autoDetectFields.includes(fieldName)) {
return true
}
// 如果禁用了自动检测，不进行关键词匹配
if (!this.enableAutoDetection) {
return false
}
// 如果启用了自动检测但autoDetectFields为空，不进行关键词匹配
if (this.autoDetectFields.length === 0) {
return false
}
// 检查字段名是否包含代码相关的关键词
const fieldLower = fieldName.toLowerCase()
return fieldLower.includes('code') || fieldLower.includes('script')
|| fieldLower.includes('sql') || fieldLower.includes('query')
|| fieldLower.includes('html') || fieldLower.includes('css')
|| fieldLower.includes('python') || fieldLower.includes('java')
|| fieldLower.includes('typescript') || fieldLower.includes('javascript')
|| fieldLower.includes('php') || fieldLower.includes('shell')
|| fieldLower.includes('bash') || fieldLower.includes('go')
|| fieldLower.includes('rust') || fieldLower.includes('cpp')
|| fieldLower.includes('c++') || fieldLower === 'c'
}
private unescapeString(str: string): string {
return str.replace(/\\(.)/g, (match, char) => {
switch (char) {
case '"': return '"'
case '\\': return '\\'
case '/': return '/'
case 'b': return '\b'
case 'f': return '\f'
case 'n': return '\n'
case 'r': return '\r'
case 't': return '\t'
case 'u': {
// 处理Unicode转义序列 \uXXXX
const nextFour = str.substr(str.indexOf(match) + 2, 4)
if (/^[0-9a-f]{4}$/i.test(nextFour)) {
return String.fromCharCode(Number.parseInt(nextFour, 16))
}
return char
}
case 'x': {
// 处理十六进制转义序列 \xXX
const nextTwo = str.substr(str.indexOf(match) + 2, 2)
if (/^[0-9a-f]{2}$/i.test(nextTwo)) {
return String.fromCharCode(Number.parseInt(nextTwo, 16))
}
return char
}
case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': {
// 处理八进制转义序列 \ooo
const octal = match.substr(1)
if (/^[0-7]{1,3}$/.test(octal)) {
return String.fromCharCode(Number.parseInt(octal, 8))
}
return char
}
default: return char
}
})
}
}
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