export const isPunctuation = (char: string): boolean => {
    // 使用正则表达式匹配标点符号
    const punctuationRegex = /[!,.;?~！，。；？！]/;

    // 测试字符是否是标点符号
    return punctuationRegex.test(char);
}

export const  isEndWithHuanHang = (str: string): boolean => {
    if (str && str.endsWith("\n") || str.endsWith("\r\n") || str.endsWith("\n\n")) {
        return true
    } else {
        return false
    }
}

export const isStartWithHuanhang = (str: string): boolean => {
    if (str && str.startsWith("\n") || str.startsWith("\r\n") || str.startsWith("\n\n")) {
        return true
    } else {
        return false
    }
}

export const isTextCut = (str: string): boolean => {
    if (str.length < 1) {
        return false
    }

    if (isEndWithHuanHang(str)) {
        return true
    }

    if (isPunctuation(str[str.length - 1])) {
        return true
    }

    return false
}

export const isTextCutHead = (str: string): boolean => {
    if (str.length < 1) {
        return false
    }

    if (isStartWithHuanhang(str)) {
        return true
    }

    if (isPunctuation(str[0])) {
        return true
    }

    return false
}

export const isImageURL = (url: string): boolean => {
    if (url.startsWith("https") || url.startsWith("http") || url.startsWith("data:image/")) {
        return true
    } else {
        return false
    }
}