Rename

app/src/main/java/io/legato/kazusa/help/RuleComplete.kt

@@ -0,0 +1,88 @@
+package io.legato.kazusa.help
+
+
+@Suppress("RegExpRedundantEscape")
+object RuleComplete {
+    // 需要补全
+    private val needComplete = Regex(
+        """(?<!(@|/|^|[|%&]{2})(attr|text|ownText|textNodes|href|content|html|alt|all|value|src)(\(\))?)(?<seq>\&{2}|%%|\|{2}|$)"""
+    )
+
+    // 不能补全 存在js/json/{{xx}}的复杂情况
+    private val notComplete = Regex("""^:|^##|\{\{|@js:|<js>|@Json:|\$\.""")
+
+    // 修正从图片获取信息
+    private val fixImgInfo =
+        Regex("""(?<=(^|tag\.|[\+/@>~| &]))img(?<at>(\[@?.+\]|\.[-\w]+)?)[@/]+text(\(\))?(?<seq>\&{2}|%%|\|{2}|$)""")
+
+    private val isXpath = Regex("^//|^@Xpath:")
+
+    /**
+     * 对简单规则进行补全，简化部分书源规则的编写
+     * 对JSOUP/XPath/CSS规则生效
+     * @author 希弥
+     * @return 补全后的规则 或 原规则
+     * @param rules 需要补全的规则
+     * @param preRule 预处理规则或列表规则
+     * @param type 补全结果的类型，可选的值有:
+     *  1 文字(默认)
+     *  2 链接
+     *  3 图片
+     */
+    fun autoComplete(
+        rules: String?,
+        preRule: String? = null,
+        type: Int = 1
+    ): String? {
+        if (rules.isNullOrEmpty() || rules.contains(notComplete) || preRule?.contains(notComplete) == true) {
+            return rules
+        }
+
+        /** 尾部##分割的正则或由,分割的参数 */
+        val tailStr: String
+
+        /** 分割字符 */
+        val splitStr: String
+
+        /**  用于获取文字时添加的规则 */
+        val textRule: String
+
+        /**  用于获取链接时添加的规则 */
+        val linkRule: String
+
+        /**  用于获取图片时添加的规则 */
+        val imgRule: String
+
+        /**  用于获取图片alt属性时添加的规则 */
+        val imgText: String
+
+        // 分离尾部规则
+        val regexSplit = rules.split("""##|,\{""".toRegex(), 2)
+        val cleanedRule = regexSplit[0]
+        if (regexSplit.size > 1) {
+            splitStr = """##|,\{""".toRegex().find(rules)?.value ?: ""
+            tailStr = splitStr + regexSplit[1]
+        } else {
+            tailStr = ""
+        }
+        if (cleanedRule.contains(isXpath)) {
+            textRule = "//text()\${seq}"
+            linkRule = "//@href\${seq}"
+            imgRule = "//@src\${seq}"
+            imgText = "img\${at}/@alt\${seq}"
+        } else {
+            textRule = "@text\${seq}"
+            linkRule = "@href\${seq}"
+            imgRule = "@src\${seq}"
+            imgText = "img\${at}@alt\${seq}"
+        }
+        return when (type) {
+            1 -> needComplete.replace(cleanedRule, textRule).replace(fixImgInfo, imgText) + tailStr
+            2 -> needComplete.replace(cleanedRule, linkRule) + tailStr
+            3 -> needComplete.replace(cleanedRule, imgRule) + tailStr
+            else -> rules
+        }
+    }
+
+
+}