refactor(compiler): adjust overlap and text length validation #257

- Change `OVERLAP` from 5 to 4 for better context handling.
- Update text length validation to require more than 4 characters.
- Use `OVERLAP` constant in `search` method for consistency.
- Improve command documentation format in `DevInsDocumentationProvider`.

Author: phodal

exts/devins-lang/src/main/kotlin/cc/unitmesh/devti/language/compiler/exec/LocalSearchInsCommand.kt

@@ -20,13 +20,13 @@ import com.intellij.openapi.vfs.VirtualFile
  */
 class LocalSearchInsCommand(val myProject: Project, private val scope: String, val text: String?) : InsCommand {
     private val MAX_LINE_SIZE = 180
-    private val OVERLAP = 5
+    private val OVERLAP = 4
 
     override suspend fun execute(): String {
         val text = (text ?: scope).trim()
         /// check text length if less then 3 return alert slowly
         if (text.length < 3) {
-            throw IllegalArgumentException("Text length should be more than 5")
+            throw IllegalArgumentException("Text length should be more than 4")
         }
 
         val textSearch = search(myProject, text, OVERLAP)
@@ -49,7 +49,7 @@ class LocalSearchInsCommand(val myProject: Project, private val scope: String, v
      *         the lines of context around the keyword in that file. The context includes the matched line and the specified
      *         number of lines before and after it.
      */
-    private fun search(project: Project, keyword: String, overlap: Int = 5): Map<VirtualFile, List<String>> {
+    private fun search(project: Project, keyword: String, overlap: Int = OVERLAP): Map<VirtualFile, List<String>> {
         val result = mutableMapOf<VirtualFile, List<String>>()
 
         ProjectFileIndex.getInstance(project).iterateContent { file ->

exts/devins-lang/src/main/kotlin/cc/unitmesh/devti/language/documentation/DevInsDocumentationProvider.kt

@@ -55,7 +55,7 @@ class DevInsDocumentationProvider : AbstractDocumentationProvider() {
         fun allCommands(): List<String> {
             return BuiltinCommand.all().map {
                 val example = BuiltinCommand.example(it)
-                "${it.commandName}: ${it.description}\nExample:\n```$example\n```"
+                "name: /${it.commandName}:\ndesc: ${it.description}\nExample:\n```devin\n$example\n```"
             }
         }
     }