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166
app/case-converter/page.tsx
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166
app/case-converter/page.tsx
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"use client";
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import { useState } from "react";
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import { CaseSensitive, Copy, Trash2 } from "lucide-react";
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import { Button } from "@/components/ui/button";
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import { Textarea } from "@/components/ui/textarea";
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import { Card, CardContent, CardHeader, CardTitle } from "@/components/ui/card";
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import { toast } from "sonner";
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export default function CaseConverterPage() {
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const [input, setInput] = useState("");
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const copyToClipboard = async (text: string) => {
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if (!text) return;
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try {
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await navigator.clipboard.writeText(text);
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toast.success("已复制到剪贴板");
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} catch {
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toast.error("复制失败");
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}
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};
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const toUpper = () => setInput(input.toUpperCase());
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const toLower = () => setInput(input.toLowerCase());
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const toTitleCase = () => {
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const result = input
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.toLowerCase()
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.split(/[\s_-]+/)
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.map(word => word.charAt(0).toUpperCase() + word.slice(1))
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.join(" ");
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setInput(result);
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};
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const toCamelCase = () => {
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const words = input.toLowerCase().split(/[\s_-]+/);
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const result = words[0] + words.slice(1).map(word => word.charAt(0).toUpperCase() + word.slice(1)).join("");
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setInput(result);
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};
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const toPascalCase = () => {
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const result = input
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.toLowerCase()
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.split(/[\s_-]+/)
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.map(word => word.charAt(0).toUpperCase() + word.slice(1))
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.join("");
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setInput(result);
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};
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const toSnakeCase = () => {
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const result = input
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.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
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?.map(x => x.toLowerCase())
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.join("_") || "";
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setInput(result);
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};
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const toKebabCase = () => {
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const result = input
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.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
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?.map(x => x.toLowerCase())
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.join("-") || "";
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setInput(result);
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};
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const clearAll = () => setInput("");
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return (
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<div className="space-y-6 animate-in fade-in slide-in-from-bottom-4 duration-500">
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{/* Page Header */}
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<div className="flex items-center space-x-4 border-b pb-4">
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<div className="flex h-12 w-12 items-center justify-center rounded-xl bg-linear-to-br from-violet-500 to-purple-600 shadow-lg">
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<CaseSensitive className="h-6 w-6 text-white" />
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</div>
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<div>
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<h1 className="text-2xl font-bold tracking-tight">文本大小写转换</h1>
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<p className="text-muted-foreground">
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大写、小写、驼峰、蛇形等格式快速转换
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</p>
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</div>
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</div>
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<div className="grid gap-6">
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<Card>
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<CardHeader className="flex flex-row items-center justify-between space-y-0">
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<CardTitle className="text-base font-medium">输入文本</CardTitle>
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<div className="flex gap-2">
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<Button variant="ghost" size="sm" onClick={() => copyToClipboard(input)} disabled={!input}>
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<Copy className="h-4 w-4 mr-2" />
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复制
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</Button>
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<Button variant="ghost" size="sm" onClick={clearAll} disabled={!input} className="text-destructive hover:text-destructive">
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<Trash2 className="h-4 w-4 mr-2" />
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清空
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</Button>
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</div>
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</CardHeader>
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<CardContent>
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<Textarea
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placeholder="请在此输入或粘贴需要转换的文本..."
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className="min-h-50 font-mono text-base resize-y"
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value={input}
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onChange={(e) => setInput(e.target.value)}
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/>
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</CardContent>
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</Card>
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<Card>
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<CardHeader>
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<CardTitle className="text-base font-medium">转换选项</CardTitle>
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</CardHeader>
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<CardContent>
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<div className="flex flex-wrap gap-3">
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<Button type="button" disabled={!input} onClick={toUpper} variant="secondary" className="flex-1 min-w-35">
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UPPER CASE (大写)
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</Button>
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<Button type="button" disabled={!input} onClick={toLower} variant="secondary" className="flex-1 min-w-35">
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lower case (小写)
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</Button>
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<Button type="button" disabled={!input} onClick={toTitleCase} variant="secondary" className="flex-1 min-w-35">
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Title Case (词首大写)
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</Button>
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<Button type="button" disabled={!input} onClick={toCamelCase} variant="secondary" className="flex-1 min-w-35">
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camelCase (小驼峰)
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</Button>
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<Button type="button" disabled={!input} onClick={toPascalCase} variant="secondary" className="flex-1 min-w-35">
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PascalCase (大驼峰)
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</Button>
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<Button type="button" disabled={!input} onClick={toSnakeCase} variant="secondary" className="flex-1 min-w-35">
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snake_case (蛇形)
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</Button>
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<Button type="button" disabled={!input} onClick={toKebabCase} variant="secondary" className="flex-1 min-w-35">
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kebab-case (短横线)
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</Button>
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</div>
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</CardContent>
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</Card>
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</div>
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{/* Info Card */}
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<Card>
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<CardHeader>
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<CardTitle className="flex items-center gap-2 text-base">
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<span className="text-xl">💡</span> 常见转换说明
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</CardTitle>
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</CardHeader>
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<CardContent>
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<div className="grid gap-4 md:grid-cols-2 lg:grid-cols-3">
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<div className="space-y-1">
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<p className="font-semibold text-sm">Camel Case</p>
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<p className="text-xs text-muted-foreground">第一个单词小写，后续单词首字母大写，如 `helloWorld`。</p>
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</div>
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<div className="space-y-1">
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<p className="font-semibold text-sm">Snake Case</p>
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<p className="text-xs text-muted-foreground">所有字母小写，单词间用下划线连接，如 `hello_world`。</p>
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</div>
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<div className="space-y-1">
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<p className="font-semibold text-sm">Kebab Case</p>
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<p className="text-xs text-muted-foreground">所有字母小写，单词间用连字符连接，如 `hello-world`。</p>
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</div>
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</div>
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</CardContent>
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</Card>
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</div>
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);
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}
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