Fix '?' prefix being unescaped on Android target

resources-generator/src/main/kotlin/dev/icerock/gradle/utils/StringExt.kt

@@ -57,20 +57,16 @@ internal fun String.removeAndroidMirroringFormat(): String {
         .replace("""\@""", "@")
 }
 
+private val androidLinkingCharacters = setOf('@', '?')
+
 internal fun String.convertXmlStringToAndroidLocalization(): String {
     //  Android resources should comply with requirements:
     //  https://developer.android.com/guide/topics/resources/string-resource#escaping_quotes
     return StringEscapeUtils
         .unescapeXml(this)
         .replace("\n", "\\n")
         .let { StringEscapeUtils.escapeXml11(it) }
-        .let {
-            if (it.getOrNull(0) == '@') {
-                replaceFirst("@", """\@""")
-            } else {
-                it
-            }
-        }
+        .replaceFirstChar { if (it in androidLinkingCharacters) "\\$it" else "$it" }
         .replace(""", "\\"")
         .replace("'", "\\'")
 }

resources-generator/src/test/kotlin/dev/icerock/gradle/generator/stringsGenerator/XmlStringsToPlatformTest.kt

@@ -124,10 +124,18 @@ class XmlStringsToPlatformTest {
     }
 
     @Test
-    fun stringLikeAndroidLinkOnStringAndroidTest() {
+    fun stringLikeAndroidResourceLinkOnStringAndroidTest() {
         assertEquals(
             expected = """\@same text""",
             actual = """@same text""".convertXmlStringToAndroidLocalization()
         )
     }
+
+    @Test
+    fun stringLikeAndroidAttributeLinkOnStringAndroidTest() {
+        assertEquals(
+            expected = """\?same text""",
+            actual = """?same text""".convertXmlStringToAndroidLocalization()
+        )
+    }
 }