From fd646f49e9a2c0836035e1ce7a3ec25ce148bae8 Mon Sep 17 00:00:00 2001
From: Christoffer Klang <christoffer.klang@gmail.com>
Date: Thu, 12 Oct 2023 10:09:31 +0200
Subject: [PATCH 1/2] languagetool: Fix parsing error when output contains
 'Err:...' (#396)

---
 lua/lint/linters/languagetool.lua | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/lua/lint/linters/languagetool.lua b/lua/lint/linters/languagetool.lua
index d530da98..781c3526 100644
--- a/lua/lint/linters/languagetool.lua
+++ b/lua/lint/linters/languagetool.lua
@@ -1,9 +1,27 @@
+-- LanguageTool might give output like "Err: 'yada yada'\n{ ... json here ... }'
+local function parse_err_json(str)
+    local json_start = str:find('{', 1, true)
+    local err = nil
+    local json = str
+
+    if json_start and json_start > 1 then
+        err = str:sub(1, json_start - 1):gsub("^%s*(.-)%s*$", "%1") -- trim spaces
+        json = str:sub(json_start)
+    end
+
+    return err, json
+end
+
 return {
   cmd = 'languagetool',
   args = {'--autoDetect', '--json'},
   stream = 'stdout',
   parser = function(output, bufnr)
-    local decoded = vim.json.decode(output)
+    local err, json = parse_err_json(output)
+    if err then
+      vim.notify_once(err, vim.log.levels.INFO)
+    end
+    local decoded = vim.json.decode(json)
     local diagnostics = {}
     local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, true)
     local content = table.concat(lines, '\n')

From 0f54481d7537a6872f7bb021575366657e123474 Mon Sep 17 00:00:00 2001
From: Jorge <kalmbach@gmail.com>
Date: Thu, 12 Oct 2023 05:10:24 -0300
Subject: [PATCH 2/2] Add biomejs (#403)

---
 README.md                    |  2 +
 lua/lint/linters/biomejs.lua | 79 ++++++++++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+)
 create mode 100644 lua/lint/linters/biomejs.lua

diff --git a/README.md b/README.md
index 9bdc72dd..726de6ff 100644
--- a/README.md
+++ b/README.md
@@ -73,6 +73,7 @@ Other dedicated linters that are built-in are:
 | [ansible-lint][ansible-lint]       | `ansible_lint`         |
 | [bandit][bandit]                   | `bandit`               |
 | [bean-check][bean-check]           | `bean_check`           |
+| [biomejs][biomejs]                 | `biomejs`              |
 | [buf_lint][buf_lint]               | `buf_lint`             |
 | [buildifier][buildifier]           | `buildifier`           |
 | [cfn-lint][cfn-lint]               | `cfn_lint`             |
@@ -397,3 +398,4 @@ busted tests/
 [ec]: https://github.com/editorconfig-checker/editorconfig-checker
 [deno]: https://github.com/denoland/deno
 [standardjs]: https://standardjs.com/
+[biomejs]: https://github.com/biomejs/biome
diff --git a/lua/lint/linters/biomejs.lua b/lua/lint/linters/biomejs.lua
new file mode 100644
index 00000000..eec6a210
--- /dev/null
+++ b/lua/lint/linters/biomejs.lua
@@ -0,0 +1,79 @@
+-- Sample biome lint output:
+--
+-- index.js:6:13 lint/suspicious/noDoubleEquals  FIXABLE  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+--
+--  ✖ Use === instead of ==
+--
+--    4 │   count += 1;
+--    5 │   var f = function (opt) {
+--  > 6 │     if (opt == true) {
+--      │             ^^
+--    7 │       return "true";
+--    8 │     }
+--
+--  ℹ == is only allowed when comparing against null
+--
+--    4 │   count += 1;
+--    5 │   var f = function (opt) {
+--  > 6 │     if (opt == true) {
+--      │             ^^
+--    7 │       return "true";
+--    8 │     }
+--
+--  ℹ Using === may be unsafe if you are relying on type coercion
+--
+--  ℹ Suggested fix: Use ===
+--
+--    6 │ ····if·(opt·===·true)·{
+--      │
+
+return {
+  cmd = "biome",
+  args = { "lint" },
+  stdin = false,
+  ignore_exitcode = true,
+  stream = "both",
+  parser = function(output)
+    local diagnostics = {}
+
+
+    -- The diagnostic details we need are spread in the first 3 lines of
+    -- each error report.  These variables are declared out of the FOR
+    -- loop because we need to carry their values to parse multiple lines.
+    local fetch_message = false
+    local lnum, col, code, message
+
+    -- When a lnum:col:code line is detected fetch_message is set to true.
+    -- While fetch_message is true we will search for the error message.
+    -- When a error message is detected, we will create the diagnostic and
+    -- set fetch_message to false to restart the process and get the next
+    -- diagnostic.
+    for _, line in ipairs(vim.fn.split(output, "\n")) do
+      if fetch_message then
+        _, _, message = string.find(line, "%s×(.+)")
+
+        if message then
+          message = (message):gsub("^%s+×%s*", "")
+
+          table.insert(diagnostics, {
+            source = "biomejs",
+            lnum = tonumber(lnum) - 1,
+            col = tonumber(col),
+            message = message,
+            code = code
+          })
+
+          fetch_message = false
+        end
+      else
+        _, _, lnum, col, code = string.find(line, "[^:]+:(%d+):(%d+)%s([%a%/]+)")
+
+        if lnum then
+          fetch_message = true
+        end
+      end
+    end
+
+    return diagnostics
+  end
+}