[mod] samples

LICENSE

@@ -58,7 +58,7 @@ APPENDIX: How to apply the Apache License to your work.
 
 To apply the Apache License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information. (Don't include the brackets!)  The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives.
 
-Copyright 2025 quodatum
+Copyright 2025 Andy Bunce
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

README.md

@@ -1,10 +1,11 @@
 Work in progress. 
 
-An attempt to write a [Language Server Protocol](https://en.wikipedia.org/wiki/Language_Server_Protocol) server using the BaseX websocket feature.
+An attempt to write a [Language Server Protocol](https://en.wikipedia.org/wiki/Language_Server_Protocol) server using the [BaseX websocket](https://docs.basex.org/main/WebSockets) feature.
-
+## Server
-* `webapp/lsp` The implementation using the BaseX WebSocket feature and the Jsonrpc API
+* `webapp/lsp` The LSP implementation in XQuery using WebSockets  for transport and the [JSON-RPC](https://www.jsonrpc.org/specification) 2.0 API for format.
-* `webapp/static/codemirror` A test html page using the Codemirror6 editor that connects to the BaseX LSP instance
+## Sample clients
-* `webapp/static/ace` A test html page using the Ace editor that connects to the BaseX LSP instance
+* `webapp/static/codemirror` A test html page using the [CodeMirror6 editor](https://codemirror.net/)  that connects to the BaseX LSP instance
+* `webapp/static/ace` A test html page using the [Ace editor](https://ace.c9.io/)  that connects to the BaseX LSP instance
 
 ## Uses
 * https://github.com/mkslanc/ace-linters https://mkslanc.github.io/ace-linters/
@@ -13,7 +14,7 @@ An attempt to write a [Language Server Protocol](https://en.wikipedia.org/wiki/L
 * or `node --max-old-space-size=8192 node_modules/webpack-dev-serve
 r/bin/webpack-dev-server.js`
 ## notes
-
+java -cp org.eclipse.lemminx-uber.jar org.eclipse.lemminx.XMLServerSocketLauncher`
 Using https://github.com/mkslanc/ace-linters https://mkslanc.github.io/ace-linters/
 
 Make a websocket server for lsp on port 3000

package-lock.json

@@ -8,10 +8,13 @@
         "@codemirror/commands": "^6.1.2",
         "@codemirror/lang-javascript": "^6.1.1",
         "@codemirror/lang-xml": "^6.1.0",
+        "@codemirror/lint": "^6.8.5",
         "@codemirror/lsp-client": "^6.0.0",
         "@codemirror/search": "^6.2.3",
         "@codemirror/theme-one-dark": "^6.1.0",
-        "@codemirror/view": "^6.6.0",
+        "@codemirror/view": "^6.6.0"
+      },
+      "devDependencies": {
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         "@rollup/plugin-typescript": "^12.1.4",
         "minify": "^9.1.0",
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+      "dev": true,
       "license": "MIT",
       "dependencies": {
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+      "dev": true,
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       "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/no-case": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/no-case/-/no-case-3.0.4.tgz",
       "integrity": "sha512-fgAN3jGAh+RoxUGZHTSOLJIqUc2wmoBwGR4tbpNAKmmovFoWq0OdRkb0VkldReO2a2iBT/OEulG9XSUc10r3zg==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "lower-case": "^2.0.2",
@@ -917,6 +976,7 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-4.0.0.tgz",
       "integrity": "sha512-5b0R4txpzjPWVw/cXXUResoD4hb6U/x9BH08L7nw+GN1sezDzPdxeRvpc9c433fZhBan/wusjbCsqwqm4EIBIQ==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "yocto-queue": "^1.0.0"
@@ -932,6 +992,7 @@
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-6.0.0.tgz",
       "integrity": "sha512-wPrq66Llhl7/4AGC6I+cqxT07LhXvWL08LNXz1fENOw0Ap4sRZZ/gZpTTJ5jpurzzzfS2W/Ge9BY3LgLjCShcw==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "p-limit": "^4.0.0"
@@ -947,6 +1008,7 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/param-case/-/param-case-3.0.4.tgz",
       "integrity": "sha512-RXlj7zCYokReqWpOPH9oYivUzLYZ5vAPIfEmCTNViosC78F8F0H9y7T7gG2M39ymgutxF5gcFEsyZQSph9Bp3A==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "dot-case": "^3.0.4",
@@ -957,6 +1019,7 @@
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/pascal-case/-/pascal-case-3.1.2.tgz",
       "integrity": "sha512-uWlGT3YSnK9x3BQJaOdcZwrnV6hPpd8jFH1/ucpiLRPh/2zCVJKS19E4GvYHvaCcACn3foXZ0cLB9Wrx1KGe5g==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "no-case": "^3.0.4",
@@ -967,6 +1030,7 @@
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-5.0.0.tgz",
       "integrity": "sha512-RjhtfwJOxzcFmNOi6ltcbcu4Iu+FL3zEj83dk4kAS+fVpTxXLO1b38RvJgT/0QwvV/L3aY9TAnyv0EOqW4GoMQ==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
@@ -976,12 +1040,14 @@
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
       "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/picomatch": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.3.tgz",
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=12"
@@ -994,6 +1060,7 @@
       "version": "2.2.2",
       "resolved": "https://registry.npmjs.org/readjson/-/readjson-2.2.2.tgz",
       "integrity": "sha512-PdeC9tsmLWBiL8vMhJvocq+OezQ3HhsH2HrN7YkhfYcTjQSa/iraB15A7Qvt7Xpr0Yd2rDNt6GbFwVQDg3HcAw==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "jju": "^1.4.0",
@@ -1007,6 +1074,7 @@
       "version": "0.2.7",
       "resolved": "https://registry.npmjs.org/relateurl/-/relateurl-0.2.7.tgz",
       "integrity": "sha512-G08Dxvm4iDN3MLM0EsP62EDV9IuhXPR6blNz6Utcp7zyV3tr4HVNINt6MpaRWbxoOHT3Q7YN2P+jaHX8vUbgog==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">= 0.10"
@@ -1016,6 +1084,7 @@
       "version": "1.22.10",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.10.tgz",
       "integrity": "sha512-NPRy+/ncIMeDlTAsuqwKIiferiawhefFJtkNSW0qZJEqMEb+qBt/77B/jGeeek+F0uOeN05CDa6HXbbIgtVX4w==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "is-core-module": "^2.16.0",
@@ -1036,6 +1105,7 @@
       "version": "4.46.2",
       "resolved": "https://registry.npmjs.org/rollup/-/rollup-4.46.2.tgz",
       "integrity": "sha512-WMmLFI+Boh6xbop+OAGo9cQ3OgX9MIg7xOQjn+pTCwOkk+FNDAeAemXkJ3HzDJrVXleLOFVa1ipuc1AmEx1Dwg==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@types/estree": "1.0.8"
@@ -1075,6 +1145,7 @@
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/rollup-plugin-tla/-/rollup-plugin-tla-0.0.2.tgz",
       "integrity": "sha512-Z0P100crQTAjmQIXEC5J6ECupL4G8M3CTwTRK0D4J+5rMakimVa58n06kE3vnLSy/xZHnuerEpXdUW6s5G4HYg==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "acorn-walk": "^8.2.0",
@@ -1089,6 +1160,7 @@
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/simport/-/simport-1.2.0.tgz",
       "integrity": "sha512-85Bm7pKsqiiQ8rmYCaPDdlXZjJvuW6/k/FY8MTtLFMgU7f8S00CgTHfRtWB6KwSb6ek4p9YyG2enG1+yJbl+CA==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "readjson": "^2.2.0",
@@ -1102,6 +1174,7 @@
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
       "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+      "dev": true,
       "license": "BSD-3-Clause",
       "engines": {
         "node": ">=0.10.0"
@@ -1111,6 +1184,7 @@
       "version": "0.5.21",
       "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.21.tgz",
       "integrity": "sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "buffer-from": "^1.0.0",
@@ -1127,6 +1201,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
       "integrity": "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">= 0.4"
@@ -1139,6 +1214,7 @@
       "version": "5.43.1",
       "resolved": "https://registry.npmjs.org/terser/-/terser-5.43.1.tgz",
       "integrity": "sha512-+6erLbBm0+LROX2sPXlUYx/ux5PyE9K/a92Wrt6oA+WDAoFTdpHE5tCYCI5PNzq2y8df4rA+QgHLJuR4jNymsg==",
+      "dev": true,
       "license": "BSD-2-Clause",
       "dependencies": {
         "@jridgewell/source-map": "^0.3.3",
@@ -1157,12 +1233,14 @@
       "version": "2.20.3",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
       "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/try-catch": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/try-catch/-/try-catch-3.0.1.tgz",
       "integrity": "sha512-91yfXw1rr/P6oLpHSyHDOHm0vloVvUoo9FVdw8YwY05QjJQG9OT0LUxe2VRAzmHG+0CUOmI3nhxDUMLxDN/NEQ==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=6"
@@ -1172,6 +1250,7 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/try-to-catch/-/try-to-catch-3.0.1.tgz",
       "integrity": "sha512-hOY83V84Hx/1sCzDSaJA+Xz2IIQOHRvjxzt+F0OjbQGPZ6yLPLArMA0gw/484MlfUkQbCpKYMLX3VDCAjWKfzQ==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=6"
@@ -1181,12 +1260,14 @@
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
       "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
+      "dev": true,
       "license": "0BSD"
     },
     "node_modules/typescript": {
       "version": "5.8.3",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
       "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+      "dev": true,
       "license": "Apache-2.0",
       "peer": true,
       "bin": {
@@ -1232,6 +1313,7 @@
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-1.2.1.tgz",
       "integrity": "sha512-AyeEbWOu/TAXdxlV9wmGcR0+yh2j3vYPGOECcIj2S7MkrLyC7ne+oye2BKTItt0ii2PHk4cDy+95+LshzbXnGg==",
+      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=12.20"

package.json

@@ -7,6 +7,9 @@
     "@codemirror/search": "^6.2.3",
     "@codemirror/theme-one-dark": "^6.1.0",
     "@codemirror/view": "^6.6.0",
+    "@codemirror/lint": "^6.8.5"
+  },
+  "devDependencies": {
     "minify": "^9.1.0",
     "rollup": "4",
     "@rollup/plugin-node-resolve": "^15.0.1",

samples/hover/client.json

@@ -0,0 +1,14 @@
+{
+	"jsonrpc": "2.0",
+	"id": 2,
+	"method": "textDocument/hover",
+	"params": {
+		"textDocument": {
+			"uri": "file:///session1.json"
+		},
+		"position": {
+			"line": 2,
+			"character": 22
+		}
+	}
+}

samples/initialize/client.json

@@ -0,0 +1,68 @@
+{
+    "jsonrpc": "2.0",
+    "id": 1,
+    "method": "initialize",
+    "params": {
+        "processId": null,
+        "clientInfo": {
+            "name": "@codemirror/lsp-client"
+        },
+        "rootUri": null,
+        "capabilities": {
+            "general": {
+                "markdown": {
+                    "parser": "marked"
+                }
+            },
+            "textDocument": {
+                "completion": {
+                    "completionItem": {
+                        "snippetSupport": true,
+                        "documentationFormat": [
+                            "plaintext",
+                            "markdown"
+                        ],
+                        "insertReplaceSupport": false
+                    },
+                    "completionList": {
+                        "itemDefaults": [
+                            "commitCharacters",
+                            "editRange",
+                            "insertTextFormat"
+                        ]
+                    },
+                    "completionItemKind": {
+                        "valueSet": []
+                    },
+                    "contextSupport": true
+                },
+                "hover": {
+                    "contentFormat": [
+                        "markdown",
+                        "plaintext"
+                    ]
+                },
+                "formatting": {},
+                "rename": {},
+                "signatureHelp": {
+                    "contextSupport": true,
+                    "signatureInformation": {
+                        "documentationFormat": [
+                            "markdown",
+                            "plaintext"
+                        ],
+                        "parameterInformation": {
+                            "labelOffsetSupport": true
+                        },
+                        "activeParameterSupport": true
+                    }
+                },
+                "definition": {},
+                "declaration": {},
+                "implementation": {},
+                "typeDefinition": {},
+                "references": {}
+            }
+        }
+    }
+}

samples/initialize/server.json

@@ -0,0 +1,32 @@
+{
+    "jsonrpc": "2.0",
+    "id": 1,
+    "result": {
+        "capabilities": {
+            "textDocumentSync": 2,
+            "completionProvider": {
+                "resolveProvider": false,
+                "triggerCharacters": [
+                    "\"",
+                    ":"
+                ],
+                "documentSelector": [
+                    {
+                        "language": "xquery"
+                    }
+                ]
+            },
+            "hoverProvider": true,
+            "documentSymbolProvider": true,
+            "documentRangeFormattingProvider": false,
+            "colorProvider": {},
+            "foldingRangeProvider": true,
+            "selectionRangeProvider": true,
+            "documentLinkProvider": {},
+            "serverInfo": {
+                "name": "My Custom Language Server",
+                "version": "1.0.0"
+            }
+        }
+    }
+}

samples/test.xq

@@ -0,0 +1,2 @@
+"hover/client.json"
+=>json:doc({"format":"w3"})

src/lsp.js

@@ -1,5 +1,6 @@
 import { EditorState } from '@codemirror/state';
 import { openSearchPanel, highlightSelectionMatches,searchKeymap } from '@codemirror/search';
+import {openLintPanel, lintGutter, lintKeymap} from "@codemirror/lint"
 import { indentWithTab, history, defaultKeymap, historyKeymap } from '@codemirror/commands';
 import { foldGutter, indentOnInput, indentUnit, bracketMatching, foldKeymap, syntaxHighlighting, defaultHighlightStyle } from '@codemirror/language';
 import { closeBrackets, autocompletion, closeBracketsKeymap, completionKeymap } from '@codemirror/autocomplete';
@@ -37,6 +38,7 @@ const baseExts = [
     highlightSpecialChars(),
     history(),
     foldGutter(),
+    lintGutter(),
     drawSelection(),
     indentUnit.of("    "),
     EditorState.allowMultipleSelections.of(true),
@@ -56,6 +58,7 @@ const baseExts = [
         ...foldKeymap,
         ...completionKeymap,
         ...searchKeymap,
+        ...lintKeymap
     ]),
     xml(),
     syntaxHighlighting(defaultHighlightStyle, { fallback: true })
@@ -76,4 +79,4 @@ function createEditorView(state, parent) {
     return new EditorView({ state, parent });
 }
 
-export { createEditorState, createEditorView, openSearchPanel, languageServerSupport, baseExts ,lsp, simpleWebSocketTransport};
+export { createEditorState, createEditorView, openSearchPanel,openLintPanel, languageServerSupport, baseExts ,lsp, simpleWebSocketTransport};

src/server/lemminx.bat

@@ -0,0 +1,3 @@
+REM default port 5008
+REM https://download.eclipse.org/lemminx/releases/0.31.0/
+java -cp org.eclipse.lemminx-uber.jar org.eclipse.lemminx.XMLServerSocketLauncher

src/server/test.html

@@ -0,0 +1,4 @@
+<script>
+    const webSocket = new WebSocket("ws://localhost:5008");
+    alert("hi");
+    </script>

webapp/lsp/capabilities.json

@@ -0,0 +1,21 @@
+{
+    "capabilities": {
+      "textDocumentSync": 2,
+      "completionProvider": {
+        "resolveProvider": false,
+        "triggerCharacters": [ "\"", ":" ],
+        "documentSelector": [{ "language": "xquery" }]
+      },
+      "hoverProvider": true,
+      "documentSymbolProvider": true,
+      "documentRangeFormattingProvider": false,
+      "colorProvider": {},
+      "foldingRangeProvider": true,
+      "selectionRangeProvider": true,
+      "documentLinkProvider": {},
+       "serverInfo": {
+            "name": "My Custom Language Server",
+            "version": "1.0.0"
+        }
+    }
+  }

webapp/lsp/jsonrpc.xqm

@@ -9,7 +9,7 @@ import module namespace lsp-text = 'lsp-text' at "lsp-text.xqm";
 declare variable $lsprpc:methods:=map:merge((
   map{
   "initialize" : lsprpc:method-initialize#1,
-  "initialized" : lsprpc:method-unknown#1,
+  "initialized" : lsprpc:method-initialized#1,
   "workspace/didChangeConfiguration" :lsprpc:method-unknown#1
 },
   $lsp-text:methods
@@ -49,25 +49,18 @@ as map(*)
 {
   "jsonrpc": "2.0",
   "id": $json?id,
-  "result": {
+  "result": json:doc("capabilities.json",{"format":"w3"})
-    "capabilities": {
-      "textDocumentSync": 2,
-      "completionProvider": {
-        "resolveProvider": false(),
-        "triggerCharacters": [ """", ":" ]
-      },
-      "hoverProvider": true(),
-      "documentSymbolProvider": true(),
-      "documentRangeFormattingProvider": false(),
-      "colorProvider": {},
-      "foldingRangeProvider": true(),
-      "selectionRangeProvider": true(),
-      "documentLinkProvider": {}
-    }
-  }
 }
 };
 
+(:~ initialized response :)
+declare
+function lsprpc:method-initialized($json as map(*)) 
+as empty-sequence()
+{
+  ws:set(ws:id(),"initialized", true())
+};
+
 (:~  unknown method response :)
 declare
 function lsprpc:method-unknown($json as map(*)) 

webapp/lsp/lsp-text.xqm

@@ -12,20 +12,7 @@ declare variable $lsp-text:methods:=map{
   "textDocument/completion": lsp-text:completion#1
 };
 (:~  hover
-{
+
-	"jsonrpc": "2.0",
-	"id": 2,
-	"method": "textDocument/hover",
-	"params": {
-		"textDocument": {
-			"uri": "file:///session1.json"
-		},
-		"position": {
-			"line": 2,
-			"character": 22
-		}
-	}
-}
 :)
 declare
 function lsp-text:hover($json as map(*)) 
@@ -35,7 +22,16 @@ as map(*)?
  return map{
     "jsonrpc": "2.0",
     "id": $json?id,
-    "value":"uri: " || $doc
+    "result":{
+  "contents": [{
+      "language": "PlainText",
+      "value": "VPCONFLICTQ : [NONE,AVX512_CD] Detect Conflicts Within a Vector of Packed Dword/Qword Values into Dense Memory/ Register\n"
+    },
+    {
+      "language": "Markdown",
+      "value": "```text\n                                      µOps   µOps     µOps                                              \nArchitecture  Instruction             Fused  Unfused  Port                Latency  Throughput           \nSkylakeX      VPCONFLICTQ x,x         3      3        p01 p5              4        2                    \nSkylakeX      VPCONFLICTQ y,y         15     15       p01 p5              13       7                    \nSkylakeX      VPCONFLICTQ z,z         22     22       p0 p5               17       12                   \n```"
+    }]
+}
   }
 };
 

webapp/lsp/lsp-util.xqm

@@ -1,56 +0,0 @@
-(:~
- : Simple WebSocket chat. Utility functions.
- : @author BaseX Team, BSD License
- :)
-module namespace lsp-util = 'chat/util';
-
-
-import module namespace ws = 'http://basex.org/modules/ws';
-
-(:~ User id (bound to sessions and WebSockets). :)
-declare variable $lsp-util:id := 'id';
-
-(:~
- : Sends a users list (all, active) to all registered clients.
- :)
-declare function lsp-util:users() as empty-sequence() {
-  ws:emit(map{
-    'type': 'users',
-    'users': array { sort(user:list()) },
-    'active': array { distinct-values(
-      for $id in ws:ids()
-      return ws:get($id, $lsp-util:id)
-    )}
-  })
-};
-
-(:~ 
- : Sends a message to all clients, or to the clients of a specific user.
- : @param  $text  text to be sent
- : @param  $to    receiver of a private message (optional)
- :)
-declare function lsp-util:message(
-  $text  as xs:string,
-  $to    as xs:string?
-) as empty-sequence() {
-  let $ws-ids := ws:ids()[not($to) or ws:get(., $lsp-util:id) = $to]
-  return ws:send(map{
-    'type': 'message',
-    'text': serialize($text),
-    'from': ws:get(ws:id(), $lsp-util:id),
-    'date': format-time(current-time(), '[H02]:[m02]:[s02]'),
-    'private': boolean($to)
-  }, $ws-ids)
-};
-
-(:~
- : Closes all WebSocket connections from the specified user.
- : @param  $name  username
- :)
-declare function lsp-util:close(
-  $name  as  xs:string
-) as empty-sequence() {
-  for $id in ws:ids()
-  where ws:get($id, $lsp-util:id) = $name
-  return ws:close($id)
-};

webapp/lsp/lsp-ws.xqm

@@ -5,7 +5,7 @@
 module namespace lsp-ws = 'lsp-ws';
 
 import module namespace lsprpc = 'lsprpc' at 'jsonrpc.xqm';
-import module namespace chat-util = 'chat/util' at 'lsp-util.xqm';
+
 
 declare 
 %ws:error('/lsp', '{$error}') 
@@ -22,9 +22,7 @@ function lsp-ws:connect() as empty-sequence() {
 let $id:=ws:id()=>trace("CONNECT: ")
 return  (
   ws:set($id, "id", $id),
- store:clear(),
+  ws:set($id, "initialized", false()) 
- store:put("id",$id),
- store:write("lsp-store")
 )
 };
 
@@ -46,11 +44,10 @@ function lsp-ws:message(
 
 
 (:~ 
- : Closes a WebSocket connection. Unregisters the user and notifies all clients.
+ : Closes a WebSocket connection.
  :)
 declare
   %ws:close('/lsp')
 function lsp-ws:close() as empty-sequence() {
-  ws:delete(ws:id(), $chat-util:id),
+  message("SOCKET CLOSE: " || ws:id())
-  chat-util:users()
 };

webapp/static/codemirror/index.html

@@ -12,14 +12,22 @@
 
 <body>
     <header>BaseX LSP client <button id="search">🔍</button>
-        <label for="symbols">Symbols:</label><select id="symbols" disabled="disabled"></select>
+        <button id="lint">⚠️</button>
         <div style="float:right">
-            <input id="iServer" type="text" value="ws://localhost:3000/ws/lsp" /><button id="connect">connect</button>
+            <span id="state">🔴</span>
+            <input id="iServer" type="text" value="ws://localhost:3000/ws/lsp" style="width:25em" /><button id="connect">connect</button>
         </div>
     </header>
 
     <div class="container">
-        <div class="item">stuff</div>
+        <div class="item">
+            <div>
+                <label for="file">File:</label><input id="iFile" type="url" value="file:///some/file.xml" />
+            </div>
+            <div>
+                <label for="symbols">Symbols:</label><select id="symbols" disabled="disabled"></select>
+            </div>
+        </div>
         <!-- Editor goes in here -->
         <div id="editor" class="item"></div>
     </div>
@@ -28,19 +36,7 @@
     <script src="./lsp.bundle.js"></script>
     <script>
 
-        const server = "ws://localhost:3000/ws/lsp";
+        let doc = `<foo at=42><bar>test</bar></foo>`;
-        let doc = `/**
-* 
-* @param {string[]} items
-* @param nada
-*/
-function foo(items, nada) {
-   for (var i=0; i<items.length; i++) {
-           alert(items[i] + 'juhu');
-    }	// Real Tab.
-//
-// 
-}`;
         // Load saved content from localStorage when the page loads
         window.addEventListener('load', () => {
             const savedText = localStorage.getItem('code');
@@ -59,21 +55,27 @@ function foo(items, nada) {
             localStorage.setItem('code', doc);
         });
         document.getElementById("connect").onclick = e => {
-            const v = document.getElementById("iServer").value;
+           
-            alert(v)
+            connect()
         };
         document.getElementById("search").onclick = e => {
             lsp.openSearchPanel(view);
         };
-
+        document.getElementById("lint").onclick = e => {
+            lsp.openLintPanel(view);
+        };
+        function connect() {
+            const server = document.getElementById("iServer").value;
+            const file = document.getElementById("iFile").value;
             lsp.simpleWebSocketTransport(server)
                 .then(transport => {
-                let link = lsp.lsp(transport, "file:///some/file.xml");
+                    let link = lsp.lsp(transport, file);
                     const state = lsp.createEditorState(doc, [...lsp.baseExts, link]);
                     view.setState(state);
                 })
                 .catch(r => alert("fail"));
-
+        };
+        connect();
     </script>
 </body>
 

webapp/static/codemirror/lsp.bundle.js

@@ -14231,7 +14231,7 @@ var lsp = (function (exports) {
       if (isNaN(current) || Math.abs(value - current) > 1)
           elt.style.left = value + "px";
   }
-  const baseTheme$4 = /*@__PURE__*/EditorView.baseTheme({
+  const baseTheme$5 = /*@__PURE__*/EditorView.baseTheme({
       ".cm-tooltip": {
           zIndex: 500,
           boxSizing: "border-box"
@@ -14298,7 +14298,7 @@ var lsp = (function (exports) {
   Facet to which an extension can add a value to show a tooltip.
   */
   const showTooltip = /*@__PURE__*/Facet.define({
-      enables: [tooltipPlugin, baseTheme$4]
+      enables: [tooltipPlugin, baseTheme$5]
   });
   const showHoverTooltip = /*@__PURE__*/Facet.define({
       combine: inputs => inputs.reduce((a, i) => a.concat(i), [])
@@ -16186,7 +16186,7 @@ var lsp = (function (exports) {
   once).
   */
   const setSearchQuery = /*@__PURE__*/StateEffect.define();
-  const togglePanel = /*@__PURE__*/StateEffect.define();
+  const togglePanel$1 = /*@__PURE__*/StateEffect.define();
   const searchState = /*@__PURE__*/StateField.define({
       create(state) {
           return new SearchState(defaultQuery(state).create(), null);
@@ -16195,7 +16195,7 @@ var lsp = (function (exports) {
           for (let effect of tr.effects) {
               if (effect.is(setSearchQuery))
                   value = new SearchState(effect.value.create(), value.panel);
-              else if (effect.is(togglePanel))
+              else if (effect.is(togglePanel$1))
                   value = new SearchState(value.query, effect.value ? createSearchPanel : null);
           }
           return value;
@@ -16418,7 +16418,7 @@ var lsp = (function (exports) {
       }
       else {
           view.dispatch({ effects: [
-                  togglePanel.of(true),
+                  togglePanel$1.of(true),
                   state ? setSearchQuery.of(defaultQuery(view.state, state.query.spec)) : StateEffect.appendConfig.of(searchExtensions)
               ] });
       }
@@ -16434,7 +16434,7 @@ var lsp = (function (exports) {
       let panel = getPanel(view, createSearchPanel);
       if (panel && panel.dom.contains(view.root.activeElement))
           view.focus();
-      view.dispatch({ effects: togglePanel.of(false) });
+      view.dispatch({ effects: togglePanel$1.of(false) });
       return true;
   };
   /**
@@ -16597,7 +16597,7 @@ var lsp = (function (exports) {
       }
       return EditorView.announce.of(`${view.state.phrase("current match")}. ${text} ${view.state.phrase("on line")} ${line.number}.`);
   }
-  const baseTheme$3 = /*@__PURE__*/EditorView.baseTheme({
+  const baseTheme$4 = /*@__PURE__*/EditorView.baseTheme({
       ".cm-panel.cm-search": {
           padding: "2px 6px 4px",
           position: "relative",
@@ -16630,8 +16630,746 @@ var lsp = (function (exports) {
   const searchExtensions = [
       searchState,
       /*@__PURE__*/Prec.low(searchHighlighter),
+      baseTheme$4
+  ];
+
+  class SelectedDiagnostic {
+      constructor(from, to, diagnostic) {
+          this.from = from;
+          this.to = to;
+          this.diagnostic = diagnostic;
+      }
+  }
+  class LintState {
+      constructor(diagnostics, panel, selected) {
+          this.diagnostics = diagnostics;
+          this.panel = panel;
+          this.selected = selected;
+      }
+      static init(diagnostics, panel, state) {
+          // Filter the list of diagnostics for which to create markers
+          let diagnosticFilter = state.facet(lintConfig).markerFilter;
+          if (diagnosticFilter)
+              diagnostics = diagnosticFilter(diagnostics, state);
+          let sorted = diagnostics.slice().sort((a, b) => a.from - b.from || a.to - b.to);
+          let deco = new RangeSetBuilder(), active = [], pos = 0;
+          for (let i = 0;;) {
+              let next = i == sorted.length ? null : sorted[i];
+              if (!next && !active.length)
+                  break;
+              let from, to;
+              if (active.length) {
+                  from = pos;
+                  to = active.reduce((p, d) => Math.min(p, d.to), next && next.from > from ? next.from : 1e8);
+              }
+              else {
+                  from = next.from;
+                  to = next.to;
+                  active.push(next);
+                  i++;
+              }
+              while (i < sorted.length) {
+                  let next = sorted[i];
+                  if (next.from == from && (next.to > next.from || next.to == from)) {
+                      active.push(next);
+                      i++;
+                      to = Math.min(next.to, to);
+                  }
+                  else {
+                      to = Math.min(next.from, to);
+                      break;
+                  }
+              }
+              let sev = maxSeverity(active);
+              if (active.some(d => d.from == d.to || (d.from == d.to - 1 && state.doc.lineAt(d.from).to == d.from))) {
+                  deco.add(from, from, Decoration.widget({
+                      widget: new DiagnosticWidget(sev),
+                      diagnostics: active.slice()
+                  }));
+              }
+              else {
+                  let markClass = active.reduce((c, d) => d.markClass ? c + " " + d.markClass : c, "");
+                  deco.add(from, to, Decoration.mark({
+                      class: "cm-lintRange cm-lintRange-" + sev + markClass,
+                      diagnostics: active.slice(),
+                      inclusiveEnd: active.some(a => a.to > to)
+                  }));
+              }
+              pos = to;
+              for (let i = 0; i < active.length; i++)
+                  if (active[i].to <= pos)
+                      active.splice(i--, 1);
+          }
+          let set = deco.finish();
+          return new LintState(set, panel, findDiagnostic(set));
+      }
+  }
+  function findDiagnostic(diagnostics, diagnostic = null, after = 0) {
+      let found = null;
+      diagnostics.between(after, 1e9, (from, to, { spec }) => {
+          if (diagnostic && spec.diagnostics.indexOf(diagnostic) < 0)
+              return;
+          if (!found)
+              found = new SelectedDiagnostic(from, to, diagnostic || spec.diagnostics[0]);
+          else if (spec.diagnostics.indexOf(found.diagnostic) < 0)
+              return false;
+          else
+              found = new SelectedDiagnostic(found.from, to, found.diagnostic);
+      });
+      return found;
+  }
+  function hideTooltip(tr, tooltip) {
+      let from = tooltip.pos, to = tooltip.end || from;
+      let result = tr.state.facet(lintConfig).hideOn(tr, from, to);
+      if (result != null)
+          return result;
+      let line = tr.startState.doc.lineAt(tooltip.pos);
+      return !!(tr.effects.some(e => e.is(setDiagnosticsEffect)) || tr.changes.touchesRange(line.from, Math.max(line.to, to)));
+  }
+  function maybeEnableLint(state, effects) {
+      return state.field(lintState, false) ? effects : effects.concat(StateEffect.appendConfig.of(lintExtensions));
+  }
+  /**
+  The state effect that updates the set of active diagnostics. Can
+  be useful when writing an extension that needs to track these.
+  */
+  const setDiagnosticsEffect = /*@__PURE__*/StateEffect.define();
+  const togglePanel = /*@__PURE__*/StateEffect.define();
+  const movePanelSelection = /*@__PURE__*/StateEffect.define();
+  const lintState = /*@__PURE__*/StateField.define({
+      create() {
+          return new LintState(Decoration.none, null, null);
+      },
+      update(value, tr) {
+          if (tr.docChanged && value.diagnostics.size) {
+              let mapped = value.diagnostics.map(tr.changes), selected = null, panel = value.panel;
+              if (value.selected) {
+                  let selPos = tr.changes.mapPos(value.selected.from, 1);
+                  selected = findDiagnostic(mapped, value.selected.diagnostic, selPos) || findDiagnostic(mapped, null, selPos);
+              }
+              if (!mapped.size && panel && tr.state.facet(lintConfig).autoPanel)
+                  panel = null;
+              value = new LintState(mapped, panel, selected);
+          }
+          for (let effect of tr.effects) {
+              if (effect.is(setDiagnosticsEffect)) {
+                  let panel = !tr.state.facet(lintConfig).autoPanel ? value.panel : effect.value.length ? LintPanel.open : null;
+                  value = LintState.init(effect.value, panel, tr.state);
+              }
+              else if (effect.is(togglePanel)) {
+                  value = new LintState(value.diagnostics, effect.value ? LintPanel.open : null, value.selected);
+              }
+              else if (effect.is(movePanelSelection)) {
+                  value = new LintState(value.diagnostics, value.panel, effect.value);
+              }
+          }
+          return value;
+      },
+      provide: f => [showPanel.from(f, val => val.panel),
+          EditorView.decorations.from(f, s => s.diagnostics)]
+  });
+  const activeMark = /*@__PURE__*/Decoration.mark({ class: "cm-lintRange cm-lintRange-active" });
+  function lintTooltip(view, pos, side) {
+      let { diagnostics } = view.state.field(lintState);
+      let found, start = -1, end = -1;
+      diagnostics.between(pos - (side < 0 ? 1 : 0), pos + (side > 0 ? 1 : 0), (from, to, { spec }) => {
+          if (pos >= from && pos <= to &&
+              (from == to || ((pos > from || side > 0) && (pos < to || side < 0)))) {
+              found = spec.diagnostics;
+              start = from;
+              end = to;
+              return false;
+          }
+      });
+      let diagnosticFilter = view.state.facet(lintConfig).tooltipFilter;
+      if (found && diagnosticFilter)
+          found = diagnosticFilter(found, view.state);
+      if (!found)
+          return null;
+      return {
+          pos: start,
+          end: end,
+          above: view.state.doc.lineAt(start).to < end,
+          create() {
+              return { dom: diagnosticsTooltip(view, found) };
+          }
+      };
+  }
+  function diagnosticsTooltip(view, diagnostics) {
+      return crelt("ul", { class: "cm-tooltip-lint" }, diagnostics.map(d => renderDiagnostic(view, d, false)));
+  }
+  /**
+  Command to open and focus the lint panel.
+  */
+  const openLintPanel = (view) => {
+      let field = view.state.field(lintState, false);
+      if (!field || !field.panel)
+          view.dispatch({ effects: maybeEnableLint(view.state, [togglePanel.of(true)]) });
+      let panel = getPanel(view, LintPanel.open);
+      if (panel)
+          panel.dom.querySelector(".cm-panel-lint ul").focus();
+      return true;
+  };
+  /**
+  Command to close the lint panel, when open.
+  */
+  const closeLintPanel = (view) => {
+      let field = view.state.field(lintState, false);
+      if (!field || !field.panel)
+          return false;
+      view.dispatch({ effects: togglePanel.of(false) });
+      return true;
+  };
+  /**
+  Move the selection to the next diagnostic.
+  */
+  const nextDiagnostic = (view) => {
+      let field = view.state.field(lintState, false);
+      if (!field)
+          return false;
+      let sel = view.state.selection.main, next = field.diagnostics.iter(sel.to + 1);
+      if (!next.value) {
+          next = field.diagnostics.iter(0);
+          if (!next.value || next.from == sel.from && next.to == sel.to)
+              return false;
+      }
+      view.dispatch({ selection: { anchor: next.from, head: next.to }, scrollIntoView: true });
+      return true;
+  };
+  /**
+  A set of default key bindings for the lint functionality.
+
+  - Ctrl-Shift-m (Cmd-Shift-m on macOS): [`openLintPanel`](https://codemirror.net/6/docs/ref/#lint.openLintPanel)
+  - F8: [`nextDiagnostic`](https://codemirror.net/6/docs/ref/#lint.nextDiagnostic)
+  */
+  const lintKeymap = [
+      { key: "Mod-Shift-m", run: openLintPanel, preventDefault: true },
+      { key: "F8", run: nextDiagnostic }
+  ];
+  const lintConfig = /*@__PURE__*/Facet.define({
+      combine(input) {
+          return Object.assign({ sources: input.map(i => i.source).filter(x => x != null) }, combineConfig(input.map(i => i.config), {
+              delay: 750,
+              markerFilter: null,
+              tooltipFilter: null,
+              needsRefresh: null,
+              hideOn: () => null,
+          }, {
+              needsRefresh: (a, b) => !a ? b : !b ? a : u => a(u) || b(u)
+          }));
+      }
+  });
+  function assignKeys(actions) {
+      let assigned = [];
+      if (actions)
+          actions: for (let { name } of actions) {
+              for (let i = 0; i < name.length; i++) {
+                  let ch = name[i];
+                  if (/[a-zA-Z]/.test(ch) && !assigned.some(c => c.toLowerCase() == ch.toLowerCase())) {
+                      assigned.push(ch);
+                      continue actions;
+                  }
+              }
+              assigned.push("");
+          }
+      return assigned;
+  }
+  function renderDiagnostic(view, diagnostic, inPanel) {
+      var _a;
+      let keys = inPanel ? assignKeys(diagnostic.actions) : [];
+      return crelt("li", { class: "cm-diagnostic cm-diagnostic-" + diagnostic.severity }, crelt("span", { class: "cm-diagnosticText" }, diagnostic.renderMessage ? diagnostic.renderMessage(view) : diagnostic.message), (_a = diagnostic.actions) === null || _a === void 0 ? void 0 : _a.map((action, i) => {
+          let fired = false, click = (e) => {
+              e.preventDefault();
+              if (fired)
+                  return;
+              fired = true;
+              let found = findDiagnostic(view.state.field(lintState).diagnostics, diagnostic);
+              if (found)
+                  action.apply(view, found.from, found.to);
+          };
+          let { name } = action, keyIndex = keys[i] ? name.indexOf(keys[i]) : -1;
+          let nameElt = keyIndex < 0 ? name : [name.slice(0, keyIndex),
+              crelt("u", name.slice(keyIndex, keyIndex + 1)),
+              name.slice(keyIndex + 1)];
+          return crelt("button", {
+              type: "button",
+              class: "cm-diagnosticAction",
+              onclick: click,
+              onmousedown: click,
+              "aria-label": ` Action: ${name}${keyIndex < 0 ? "" : ` (access key "${keys[i]})"`}.`
+          }, nameElt);
+      }), diagnostic.source && crelt("div", { class: "cm-diagnosticSource" }, diagnostic.source));
+  }
+  class DiagnosticWidget extends WidgetType {
+      constructor(sev) {
+          super();
+          this.sev = sev;
+      }
+      eq(other) { return other.sev == this.sev; }
+      toDOM() {
+          return crelt("span", { class: "cm-lintPoint cm-lintPoint-" + this.sev });
+      }
+  }
+  class PanelItem {
+      constructor(view, diagnostic) {
+          this.diagnostic = diagnostic;
+          this.id = "item_" + Math.floor(Math.random() * 0xffffffff).toString(16);
+          this.dom = renderDiagnostic(view, diagnostic, true);
+          this.dom.id = this.id;
+          this.dom.setAttribute("role", "option");
+      }
+  }
+  class LintPanel {
+      constructor(view) {
+          this.view = view;
+          this.items = [];
+          let onkeydown = (event) => {
+              if (event.keyCode == 27) { // Escape
+                  closeLintPanel(this.view);
+                  this.view.focus();
+              }
+              else if (event.keyCode == 38 || event.keyCode == 33) { // ArrowUp, PageUp
+                  this.moveSelection((this.selectedIndex - 1 + this.items.length) % this.items.length);
+              }
+              else if (event.keyCode == 40 || event.keyCode == 34) { // ArrowDown, PageDown
+                  this.moveSelection((this.selectedIndex + 1) % this.items.length);
+              }
+              else if (event.keyCode == 36) { // Home
+                  this.moveSelection(0);
+              }
+              else if (event.keyCode == 35) { // End
+                  this.moveSelection(this.items.length - 1);
+              }
+              else if (event.keyCode == 13) { // Enter
+                  this.view.focus();
+              }
+              else if (event.keyCode >= 65 && event.keyCode <= 90 && this.selectedIndex >= 0) { // A-Z
+                  let { diagnostic } = this.items[this.selectedIndex], keys = assignKeys(diagnostic.actions);
+                  for (let i = 0; i < keys.length; i++)
+                      if (keys[i].toUpperCase().charCodeAt(0) == event.keyCode) {
+                          let found = findDiagnostic(this.view.state.field(lintState).diagnostics, diagnostic);
+                          if (found)
+                              diagnostic.actions[i].apply(view, found.from, found.to);
+                      }
+              }
+              else {
+                  return;
+              }
+              event.preventDefault();
+          };
+          let onclick = (event) => {
+              for (let i = 0; i < this.items.length; i++) {
+                  if (this.items[i].dom.contains(event.target))
+                      this.moveSelection(i);
+              }
+          };
+          this.list = crelt("ul", {
+              tabIndex: 0,
+              role: "listbox",
+              "aria-label": this.view.state.phrase("Diagnostics"),
+              onkeydown,
+              onclick
+          });
+          this.dom = crelt("div", { class: "cm-panel-lint" }, this.list, crelt("button", {
+              type: "button",
+              name: "close",
+              "aria-label": this.view.state.phrase("close"),
+              onclick: () => closeLintPanel(this.view)
+          }, "×"));
+          this.update();
+      }
+      get selectedIndex() {
+          let selected = this.view.state.field(lintState).selected;
+          if (!selected)
+              return -1;
+          for (let i = 0; i < this.items.length; i++)
+              if (this.items[i].diagnostic == selected.diagnostic)
+                  return i;
+          return -1;
+      }
+      update() {
+          let { diagnostics, selected } = this.view.state.field(lintState);
+          let i = 0, needsSync = false, newSelectedItem = null;
+          let seen = new Set();
+          diagnostics.between(0, this.view.state.doc.length, (_start, _end, { spec }) => {
+              for (let diagnostic of spec.diagnostics) {
+                  if (seen.has(diagnostic))
+                      continue;
+                  seen.add(diagnostic);
+                  let found = -1, item;
+                  for (let j = i; j < this.items.length; j++)
+                      if (this.items[j].diagnostic == diagnostic) {
+                          found = j;
+                          break;
+                      }
+                  if (found < 0) {
+                      item = new PanelItem(this.view, diagnostic);
+                      this.items.splice(i, 0, item);
+                      needsSync = true;
+                  }
+                  else {
+                      item = this.items[found];
+                      if (found > i) {
+                          this.items.splice(i, found - i);
+                          needsSync = true;
+                      }
+                  }
+                  if (selected && item.diagnostic == selected.diagnostic) {
+                      if (!item.dom.hasAttribute("aria-selected")) {
+                          item.dom.setAttribute("aria-selected", "true");
+                          newSelectedItem = item;
+                      }
+                  }
+                  else if (item.dom.hasAttribute("aria-selected")) {
+                      item.dom.removeAttribute("aria-selected");
+                  }
+                  i++;
+              }
+          });
+          while (i < this.items.length && !(this.items.length == 1 && this.items[0].diagnostic.from < 0)) {
+              needsSync = true;
+              this.items.pop();
+          }
+          if (this.items.length == 0) {
+              this.items.push(new PanelItem(this.view, {
+                  from: -1, to: -1,
+                  severity: "info",
+                  message: this.view.state.phrase("No diagnostics")
+              }));
+              needsSync = true;
+          }
+          if (newSelectedItem) {
+              this.list.setAttribute("aria-activedescendant", newSelectedItem.id);
+              this.view.requestMeasure({
+                  key: this,
+                  read: () => ({ sel: newSelectedItem.dom.getBoundingClientRect(), panel: this.list.getBoundingClientRect() }),
+                  write: ({ sel, panel }) => {
+                      let scaleY = panel.height / this.list.offsetHeight;
+                      if (sel.top < panel.top)
+                          this.list.scrollTop -= (panel.top - sel.top) / scaleY;
+                      else if (sel.bottom > panel.bottom)
+                          this.list.scrollTop += (sel.bottom - panel.bottom) / scaleY;
+                  }
+              });
+          }
+          else if (this.selectedIndex < 0) {
+              this.list.removeAttribute("aria-activedescendant");
+          }
+          if (needsSync)
+              this.sync();
+      }
+      sync() {
+          let domPos = this.list.firstChild;
+          function rm() {
+              let prev = domPos;
+              domPos = prev.nextSibling;
+              prev.remove();
+          }
+          for (let item of this.items) {
+              if (item.dom.parentNode == this.list) {
+                  while (domPos != item.dom)
+                      rm();
+                  domPos = item.dom.nextSibling;
+              }
+              else {
+                  this.list.insertBefore(item.dom, domPos);
+              }
+          }
+          while (domPos)
+              rm();
+      }
+      moveSelection(selectedIndex) {
+          if (this.selectedIndex < 0)
+              return;
+          let field = this.view.state.field(lintState);
+          let selection = findDiagnostic(field.diagnostics, this.items[selectedIndex].diagnostic);
+          if (!selection)
+              return;
+          this.view.dispatch({
+              selection: { anchor: selection.from, head: selection.to },
+              scrollIntoView: true,
+              effects: movePanelSelection.of(selection)
+          });
+      }
+      static open(view) { return new LintPanel(view); }
+  }
+  function svg(content, attrs = `viewBox="0 0 40 40"`) {
+      return `url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" ${attrs}>${encodeURIComponent(content)}</svg>')`;
+  }
+  function underline(color) {
+      return svg(`<path d="m0 2.5 l2 -1.5 l1 0 l2 1.5 l1 0" stroke="${color}" fill="none" stroke-width=".7"/>`, `width="6" height="3"`);
+  }
+  const baseTheme$3 = /*@__PURE__*/EditorView.baseTheme({
+      ".cm-diagnostic": {
+          padding: "3px 6px 3px 8px",
+          marginLeft: "-1px",
+          display: "block",
+          whiteSpace: "pre-wrap"
+      },
+      ".cm-diagnostic-error": { borderLeft: "5px solid #d11" },
+      ".cm-diagnostic-warning": { borderLeft: "5px solid orange" },
+      ".cm-diagnostic-info": { borderLeft: "5px solid #999" },
+      ".cm-diagnostic-hint": { borderLeft: "5px solid #66d" },
+      ".cm-diagnosticAction": {
+          font: "inherit",
+          border: "none",
+          padding: "2px 4px",
+          backgroundColor: "#444",
+          color: "white",
+          borderRadius: "3px",
+          marginLeft: "8px",
+          cursor: "pointer"
+      },
+      ".cm-diagnosticSource": {
+          fontSize: "70%",
+          opacity: .7
+      },
+      ".cm-lintRange": {
+          backgroundPosition: "left bottom",
+          backgroundRepeat: "repeat-x",
+          paddingBottom: "0.7px",
+      },
+      ".cm-lintRange-error": { backgroundImage: /*@__PURE__*/underline("#d11") },
+      ".cm-lintRange-warning": { backgroundImage: /*@__PURE__*/underline("orange") },
+      ".cm-lintRange-info": { backgroundImage: /*@__PURE__*/underline("#999") },
+      ".cm-lintRange-hint": { backgroundImage: /*@__PURE__*/underline("#66d") },
+      ".cm-lintRange-active": { backgroundColor: "#ffdd9980" },
+      ".cm-tooltip-lint": {
+          padding: 0,
+          margin: 0
+      },
+      ".cm-lintPoint": {
+          position: "relative",
+          "&:after": {
+              content: '""',
+              position: "absolute",
+              bottom: 0,
+              left: "-2px",
+              borderLeft: "3px solid transparent",
+              borderRight: "3px solid transparent",
+              borderBottom: "4px solid #d11"
+          }
+      },
+      ".cm-lintPoint-warning": {
+          "&:after": { borderBottomColor: "orange" }
+      },
+      ".cm-lintPoint-info": {
+          "&:after": { borderBottomColor: "#999" }
+      },
+      ".cm-lintPoint-hint": {
+          "&:after": { borderBottomColor: "#66d" }
+      },
+      ".cm-panel.cm-panel-lint": {
+          position: "relative",
+          "& ul": {
+              maxHeight: "100px",
+              overflowY: "auto",
+              "& [aria-selected]": {
+                  backgroundColor: "#ddd",
+                  "& u": { textDecoration: "underline" }
+              },
+              "&:focus [aria-selected]": {
+                  background_fallback: "#bdf",
+                  backgroundColor: "Highlight",
+                  color_fallback: "white",
+                  color: "HighlightText"
+              },
+              "& u": { textDecoration: "none" },
+              padding: 0,
+              margin: 0
+          },
+          "& [name=close]": {
+              position: "absolute",
+              top: "0",
+              right: "2px",
+              background: "inherit",
+              border: "none",
+              font: "inherit",
+              padding: 0,
+              margin: 0
+          }
+      }
+  });
+  function severityWeight(sev) {
+      return sev == "error" ? 4 : sev == "warning" ? 3 : sev == "info" ? 2 : 1;
+  }
+  function maxSeverity(diagnostics) {
+      let sev = "hint", weight = 1;
+      for (let d of diagnostics) {
+          let w = severityWeight(d.severity);
+          if (w > weight) {
+              weight = w;
+              sev = d.severity;
+          }
+      }
+      return sev;
+  }
+  class LintGutterMarker extends GutterMarker {
+      constructor(diagnostics) {
+          super();
+          this.diagnostics = diagnostics;
+          this.severity = maxSeverity(diagnostics);
+      }
+      toDOM(view) {
+          let elt = document.createElement("div");
+          elt.className = "cm-lint-marker cm-lint-marker-" + this.severity;
+          let diagnostics = this.diagnostics;
+          let diagnosticsFilter = view.state.facet(lintGutterConfig).tooltipFilter;
+          if (diagnosticsFilter)
+              diagnostics = diagnosticsFilter(diagnostics, view.state);
+          if (diagnostics.length)
+              elt.onmouseover = () => gutterMarkerMouseOver(view, elt, diagnostics);
+          return elt;
+      }
+  }
+  function trackHoverOn(view, marker) {
+      let mousemove = (event) => {
+          let rect = marker.getBoundingClientRect();
+          if (event.clientX > rect.left - 10 /* Hover.Margin */ && event.clientX < rect.right + 10 /* Hover.Margin */ &&
+              event.clientY > rect.top - 10 /* Hover.Margin */ && event.clientY < rect.bottom + 10 /* Hover.Margin */)
+              return;
+          for (let target = event.target; target; target = target.parentNode) {
+              if (target.nodeType == 1 && target.classList.contains("cm-tooltip-lint"))
+                  return;
+          }
+          window.removeEventListener("mousemove", mousemove);
+          if (view.state.field(lintGutterTooltip))
+              view.dispatch({ effects: setLintGutterTooltip.of(null) });
+      };
+      window.addEventListener("mousemove", mousemove);
+  }
+  function gutterMarkerMouseOver(view, marker, diagnostics) {
+      function hovered() {
+          let line = view.elementAtHeight(marker.getBoundingClientRect().top + 5 - view.documentTop);
+          const linePos = view.coordsAtPos(line.from);
+          if (linePos) {
+              view.dispatch({ effects: setLintGutterTooltip.of({
+                      pos: line.from,
+                      above: false,
+                      clip: false,
+                      create() {
+                          return {
+                              dom: diagnosticsTooltip(view, diagnostics),
+                              getCoords: () => marker.getBoundingClientRect()
+                          };
+                      }
+                  }) });
+          }
+          marker.onmouseout = marker.onmousemove = null;
+          trackHoverOn(view, marker);
+      }
+      let { hoverTime } = view.state.facet(lintGutterConfig);
+      let hoverTimeout = setTimeout(hovered, hoverTime);
+      marker.onmouseout = () => {
+          clearTimeout(hoverTimeout);
+          marker.onmouseout = marker.onmousemove = null;
+      };
+      marker.onmousemove = () => {
+          clearTimeout(hoverTimeout);
+          hoverTimeout = setTimeout(hovered, hoverTime);
+      };
+  }
+  function markersForDiagnostics(doc, diagnostics) {
+      let byLine = Object.create(null);
+      for (let diagnostic of diagnostics) {
+          let line = doc.lineAt(diagnostic.from);
+          (byLine[line.from] || (byLine[line.from] = [])).push(diagnostic);
+      }
+      let markers = [];
+      for (let line in byLine) {
+          markers.push(new LintGutterMarker(byLine[line]).range(+line));
+      }
+      return RangeSet.of(markers, true);
+  }
+  const lintGutterExtension = /*@__PURE__*/gutter({
+      class: "cm-gutter-lint",
+      markers: view => view.state.field(lintGutterMarkers),
+      widgetMarker: (view, widget, block) => {
+          let diagnostics = [];
+          view.state.field(lintGutterMarkers).between(block.from, block.to, (from, to, value) => {
+              if (from > block.from && from < block.to)
+                  diagnostics.push(...value.diagnostics);
+          });
+          return diagnostics.length ? new LintGutterMarker(diagnostics) : null;
+      }
+  });
+  const lintGutterMarkers = /*@__PURE__*/StateField.define({
+      create() {
+          return RangeSet.empty;
+      },
+      update(markers, tr) {
+          markers = markers.map(tr.changes);
+          let diagnosticFilter = tr.state.facet(lintGutterConfig).markerFilter;
+          for (let effect of tr.effects) {
+              if (effect.is(setDiagnosticsEffect)) {
+                  let diagnostics = effect.value;
+                  if (diagnosticFilter)
+                      diagnostics = diagnosticFilter(diagnostics || [], tr.state);
+                  markers = markersForDiagnostics(tr.state.doc, diagnostics.slice(0));
+              }
+          }
+          return markers;
+      }
+  });
+  const setLintGutterTooltip = /*@__PURE__*/StateEffect.define();
+  const lintGutterTooltip = /*@__PURE__*/StateField.define({
+      create() { return null; },
+      update(tooltip, tr) {
+          if (tooltip && tr.docChanged)
+              tooltip = hideTooltip(tr, tooltip) ? null : Object.assign(Object.assign({}, tooltip), { pos: tr.changes.mapPos(tooltip.pos) });
+          return tr.effects.reduce((t, e) => e.is(setLintGutterTooltip) ? e.value : t, tooltip);
+      },
+      provide: field => showTooltip.from(field)
+  });
+  const lintGutterTheme = /*@__PURE__*/EditorView.baseTheme({
+      ".cm-gutter-lint": {
+          width: "1.4em",
+          "& .cm-gutterElement": {
+              padding: ".2em"
+          }
+      },
+      ".cm-lint-marker": {
+          width: "1em",
+          height: "1em"
+      },
+      ".cm-lint-marker-info": {
+          content: /*@__PURE__*/svg(`<path fill="#aaf" stroke="#77e" stroke-width="6" stroke-linejoin="round" d="M5 5L35 5L35 35L5 35Z"/>`)
+      },
+      ".cm-lint-marker-warning": {
+          content: /*@__PURE__*/svg(`<path fill="#fe8" stroke="#fd7" stroke-width="6" stroke-linejoin="round" d="M20 6L37 35L3 35Z"/>`),
+      },
+      ".cm-lint-marker-error": {
+          content: /*@__PURE__*/svg(`<circle cx="20" cy="20" r="15" fill="#f87" stroke="#f43" stroke-width="6"/>`)
+      },
+  });
+  const lintExtensions = [
+      lintState,
+      /*@__PURE__*/EditorView.decorations.compute([lintState], state => {
+          let { selected, panel } = state.field(lintState);
+          return !selected || !panel || selected.from == selected.to ? Decoration.none : Decoration.set([
+              activeMark.range(selected.from, selected.to)
+          ]);
+      }),
+      /*@__PURE__*/hoverTooltip(lintTooltip, { hideOn: hideTooltip }),
       baseTheme$3
   ];
+  const lintGutterConfig = /*@__PURE__*/Facet.define({
+      combine(configs) {
+          return combineConfig(configs, {
+              hoverTime: 300 /* Hover.Time */,
+              markerFilter: null,
+              tooltipFilter: null
+          });
+      }
+  });
+  /**
+  Returns an extension that installs a gutter showing markers for
+  each line that has diagnostics, which can be hovered over to see
+  the diagnostics.
+  */
+  function lintGutter(config = {}) {
+      return [lintGutterConfig.of(config), lintGutterMarkers, lintGutterExtension, lintGutterTheme, lintGutterTooltip];
+  }
 
   /**
   The default maximum length of a `TreeBuffer` node.
@@ -30574,6 +31312,7 @@ ${text}</tr>
       highlightSpecialChars(),
       history(),
       foldGutter(),
+      lintGutter(),
       drawSelection(),
       indentUnit.of("    "),
       EditorState.allowMultipleSelections.of(true),
@@ -30593,6 +31332,7 @@ ${text}</tr>
           ...foldKeymap,
           ...completionKeymap,
           ...searchKeymap,
+          ...lintKeymap
       ]),
       xml(),
       syntaxHighlighting(defaultHighlightStyle, { fallback: true })
@@ -30618,6 +31358,7 @@ ${text}</tr>
   exports.createEditorView = createEditorView;
   exports.languageServerSupport = languageServerSupport;
   exports.lsp = lsp;
+  exports.openLintPanel = openLintPanel;
   exports.openSearchPanel = openSearchPanel;
   exports.simpleWebSocketTransport = simpleWebSocketTransport;