diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..09ed045
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,26 @@
+// A launch configuration that compiles the extension and then opens it inside a new window
+
+{
+    "version": "0.1.0",
+    "configurations": [
+        {
+            "args": [
+                "--extensionDevelopmentPath=${workspaceFolder}"
+            ],
+            "name": "Launch Extension",
+            "outFiles": [
+                "${workspaceFolder}/out/**/*.js"
+            ],
+            "preLaunchTask": "npm: compile",
+            "request": "launch",
+            "type": "extensionHost"
+        },
+        {
+            "name": "Launch Extension",
+            "type": "extensionHost",
+            "request": "launch",
+            "runtimeExecutable": "${execPath}",
+            "args": ["--extensionDevelopmentPath=${workspaceRoot}"]
+        }
+    ]
+}
\ No newline at end of file
diff --git a/eslint.config.mjs b/eslint.config.mjs
new file mode 100644
index 0000000..90d6f5e
--- /dev/null
+++ b/eslint.config.mjs
@@ -0,0 +1,11 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+import tseslint from "typescript-eslint";
+
+
+export default [
+  {files: ["**/*.{js,mjs,cjs,ts}"]},
+  {languageOptions: { globals: globals.browser }},
+  pluginJs.configs.recommended,
+  ...tseslint.configs.recommended,
+];
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 275c684..16a580e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,13 +1,15 @@
 {
-  "name": "helloworld",
-  "version": "0.0.1",
+  "name": "markdownsnippetinclude",
+  "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
-      "name": "helloworld",
-      "version": "0.0.1",
+      "name": "markdownsnippetinclude",
+      "version": "1.0.0",
+      "license": "SEE LICENSE IN LICENSE.txt",
       "devDependencies": {
+        "@eslint/js": "^9.12.0",
         "@types/glob": "^8.1.0",
         "@types/mocha": "^10.0.1",
         "@types/node": "16.x",
@@ -15,10 +17,12 @@
         "@typescript-eslint/eslint-plugin": "^5.56.0",
         "@typescript-eslint/parser": "^5.56.0",
         "@vscode/test-electron": "^2.3.0",
-        "eslint": "^8.36.0",
+        "eslint": "^8.57.1",
         "glob": "^8.1.0",
+        "globals": "^15.10.0",
         "mocha": "^10.2.0",
-        "typescript": "^4.9.5"
+        "typescript": "^4.9.5",
+        "typescript-eslint": "^8.8.0"
       },
       "engines": {
         "vscode": "^1.76.0"
@@ -40,23 +44,25 @@
       }
     },
     "node_modules/@eslint-community/regexpp": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/@eslint-community/regexpp/-/regexpp-4.5.0.tgz",
-      "integrity": "sha512-vITaYzIcNmjn5tF5uxcZ/ft7/RXGrMUIS9HalWckEOF6ESiwXKoMzAQf2UW0aVd6rnOeExTJVd5hmWXucBKGXQ==",
+      "version": "4.11.1",
+      "resolved": "https://registry.npmjs.org/@eslint-community/regexpp/-/regexpp-4.11.1.tgz",
+      "integrity": "sha512-m4DVN9ZqskZoLU5GlWZadwDnYo3vAEydiUayB9widCl9ffWx2IvPnp6n3on5rJmziJSw9Bv+Z3ChDVdMwXCY8Q==",
       "dev": true,
+      "license": "MIT",
       "engines": {
         "node": "^12.0.0 || ^14.0.0 || >=16.0.0"
       }
     },
     "node_modules/@eslint/eslintrc": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-2.0.2.tgz",
-      "integrity": "sha512-3W4f5tDUra+pA+FzgugqL2pRimUTDJWKr7BINqOpkZrC0uYI0NIc0/JFgBROCU07HR6GieA5m3/rsPIhDmCXTQ==",
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/@eslint/eslintrc/-/eslintrc-2.1.4.tgz",
+      "integrity": "sha512-269Z39MS6wVJtsoUl10L60WdkhJVdPG24Q4eZTH3nnF6lpvSShEK3wQjDX9JRWAUPvPh7COouPpU9IrqaZFvtQ==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "ajv": "^6.12.4",
         "debug": "^4.3.2",
-        "espree": "^9.5.1",
+        "espree": "^9.6.0",
         "globals": "^13.19.0",
         "ignore": "^5.2.0",
         "import-fresh": "^3.2.1",
@@ -71,23 +77,42 @@
         "url": "https://opencollective.com/eslint"
       }
     },
+    "node_modules/@eslint/eslintrc/node_modules/globals": {
+      "version": "13.24.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-13.24.0.tgz",
+      "integrity": "sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "type-fest": "^0.20.2"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/@eslint/js": {
-      "version": "8.37.0",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.37.0.tgz",
-      "integrity": "sha512-x5vzdtOOGgFVDCUs81QRB2+liax8rFg3+7hqM+QhBG0/G3F1ZsoYl97UrqgHgQ9KKT7G6c4V+aTUCgu/n22v1A==",
+      "version": "9.12.0",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.12.0.tgz",
+      "integrity": "sha512-eohesHH8WFRUprDNyEREgqP6beG6htMeUYeCpkEgBCieCMme5r9zFWjzAJp//9S+Kub4rqE+jXe9Cp1a7IYIIA==",
       "dev": true,
+      "license": "MIT",
       "engines": {
-        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
     "node_modules/@humanwhocodes/config-array": {
-      "version": "0.11.8",
-      "resolved": "https://registry.npmjs.org/@humanwhocodes/config-array/-/config-array-0.11.8.tgz",
-      "integrity": "sha512-UybHIJzJnR5Qc/MsD9Kr+RpO2h+/P1GhOwdiLPXK5TWk5sgTdu88bTD9UP+CKbPPh5Rni1u0GjAdYQLemG8g+g==",
+      "version": "0.13.0",
+      "resolved": "https://registry.npmjs.org/@humanwhocodes/config-array/-/config-array-0.13.0.tgz",
+      "integrity": "sha512-DZLEEqFWQFiyK6h5YIeynKx7JlvCYWL0cImfSRXZ9l4Sg2efkFGTuFf6vzXjK1cq6IYkU+Eg/JizXw+TD2vRNw==",
+      "deprecated": "Use @eslint/config-array instead",
       "dev": true,
+      "license": "Apache-2.0",
       "dependencies": {
-        "@humanwhocodes/object-schema": "^1.2.1",
-        "debug": "^4.1.1",
+        "@humanwhocodes/object-schema": "^2.0.3",
+        "debug": "^4.3.1",
         "minimatch": "^3.0.5"
       },
       "engines": {
@@ -108,10 +133,12 @@
       }
     },
     "node_modules/@humanwhocodes/object-schema": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/@humanwhocodes/object-schema/-/object-schema-1.2.1.tgz",
-      "integrity": "sha512-ZnQMnLV4e7hDlUvw8H+U8ASL02SS2Gn6+9Ac3wGGLIe7+je2AeAOxPY+izIPJDfFDb7eDjev0Us8MO1iFRN8hA==",
-      "dev": true
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/@humanwhocodes/object-schema/-/object-schema-2.0.3.tgz",
+      "integrity": "sha512-93zYdMES/c1D69yZiKDBj0V24vqNzB/koF26KPaagAfd3P/4gUlh3Dys5ogAK+Exi9QyzlD8x/08Zt7wIKcDcA==",
+      "deprecated": "Use @eslint/object-schema instead",
+      "dev": true,
+      "license": "BSD-3-Clause"
     },
     "node_modules/@nodelib/fs.scandir": {
       "version": "2.1.5",
@@ -391,6 +418,13 @@
         "url": "https://opencollective.com/typescript-eslint"
       }
     },
+    "node_modules/@ungap/structured-clone": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@ungap/structured-clone/-/structured-clone-1.2.0.tgz",
+      "integrity": "sha512-zuVdFrMJiuCDQUMCzQaD6KL28MjnqqN8XnAqiEq9PNm/hCPTSGfrXCOfwj1ow4LFb/tNymJPwsNbVePc1xFqrQ==",
+      "dev": true,
+      "license": "ISC"
+    },
     "node_modules/@vscode/test-electron": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/@vscode/test-electron/-/test-electron-2.3.0.tgz",
@@ -407,10 +441,11 @@
       }
     },
     "node_modules/acorn": {
-      "version": "8.8.2",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.8.2.tgz",
-      "integrity": "sha512-xjIYgE8HBrkpd/sJqOGNspf8uHG+NOHGOw6a/Urj8taM2EXfdNAH2oFcPeIFfsv3+kz/mJrS5VuMqbNLjCa2vw==",
+      "version": "8.12.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.12.1.tgz",
+      "integrity": "sha512-tcpGyI9zbizT9JbV6oYE477V6mTlXvvi0T0G3SNIYE2apm/G5huBa1+K89VGeovbg+jycCrfhl3ADxErOuO6Jg==",
       "dev": true,
+      "license": "MIT",
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -423,6 +458,7 @@
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.2.tgz",
       "integrity": "sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==",
       "dev": true,
+      "license": "MIT",
       "peerDependencies": {
         "acorn": "^6.0.0 || ^7.0.0 || ^8.0.0"
       }
@@ -444,6 +480,7 @@
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
       "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
@@ -564,6 +601,7 @@
       "resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
       "integrity": "sha512-P8BjAsXvZS+VIDUI11hHCQEv74YT67YUi5JJFNWIqL235sBmjX4+qx9Muvls5ivyNENctx46xQLQ3aTuE7ssaQ==",
       "dev": true,
+      "license": "MIT",
       "engines": {
         "node": ">=6"
       }
@@ -723,7 +761,8 @@
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/deep-is/-/deep-is-0.1.4.tgz",
       "integrity": "sha512-oIPzksmTg4/MriiaYGO+okXDT7ztn/w3Eptv/+gSIdMdKsJo0u4CfYNFJPy+4SKMuCqGw2wxnA+URMg3t8a/bQ==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/diff": {
       "version": "5.0.0",
@@ -786,27 +825,30 @@
       }
     },
     "node_modules/eslint": {
-      "version": "8.37.0",
-      "resolved": "https://registry.npmjs.org/eslint/-/eslint-8.37.0.tgz",
-      "integrity": "sha512-NU3Ps9nI05GUoVMxcZx1J8CNR6xOvUT4jAUMH5+z8lpp3aEdPVCImKw6PWG4PY+Vfkpr+jvMpxs/qoE7wq0sPw==",
+      "version": "8.57.1",
+      "resolved": "https://registry.npmjs.org/eslint/-/eslint-8.57.1.tgz",
+      "integrity": "sha512-ypowyDxpVSYpkXr9WPv2PAZCtNip1Mv5KTW0SCurXv/9iOpcrH9PaqUElksqEB6pChqHGDRCFTyrZlGhnLNGiA==",
+      "deprecated": "This version is no longer supported. Please see https://eslint.org/version-support for other options.",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.2.0",
-        "@eslint-community/regexpp": "^4.4.0",
-        "@eslint/eslintrc": "^2.0.2",
-        "@eslint/js": "8.37.0",
-        "@humanwhocodes/config-array": "^0.11.8",
+        "@eslint-community/regexpp": "^4.6.1",
+        "@eslint/eslintrc": "^2.1.4",
+        "@eslint/js": "8.57.1",
+        "@humanwhocodes/config-array": "^0.13.0",
         "@humanwhocodes/module-importer": "^1.0.1",
         "@nodelib/fs.walk": "^1.2.8",
-        "ajv": "^6.10.0",
+        "@ungap/structured-clone": "^1.2.0",
+        "ajv": "^6.12.4",
         "chalk": "^4.0.0",
         "cross-spawn": "^7.0.2",
         "debug": "^4.3.2",
         "doctrine": "^3.0.0",
         "escape-string-regexp": "^4.0.0",
-        "eslint-scope": "^7.1.1",
-        "eslint-visitor-keys": "^3.4.0",
-        "espree": "^9.5.1",
+        "eslint-scope": "^7.2.2",
+        "eslint-visitor-keys": "^3.4.3",
+        "espree": "^9.6.1",
         "esquery": "^1.4.2",
         "esutils": "^2.0.2",
         "fast-deep-equal": "^3.1.3",
@@ -814,22 +856,19 @@
         "find-up": "^5.0.0",
         "glob-parent": "^6.0.2",
         "globals": "^13.19.0",
-        "grapheme-splitter": "^1.0.4",
+        "graphemer": "^1.4.0",
         "ignore": "^5.2.0",
-        "import-fresh": "^3.0.0",
         "imurmurhash": "^0.1.4",
         "is-glob": "^4.0.0",
         "is-path-inside": "^3.0.3",
-        "js-sdsl": "^4.1.4",
         "js-yaml": "^4.1.0",
         "json-stable-stringify-without-jsonify": "^1.0.1",
         "levn": "^0.4.1",
         "lodash.merge": "^4.6.2",
         "minimatch": "^3.1.2",
         "natural-compare": "^1.4.0",
-        "optionator": "^0.9.1",
+        "optionator": "^0.9.3",
         "strip-ansi": "^6.0.1",
-        "strip-json-comments": "^3.1.0",
         "text-table": "^0.2.0"
       },
       "bin": {
@@ -856,10 +895,11 @@
       }
     },
     "node_modules/eslint-visitor-keys": {
-      "version": "3.4.0",
-      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-3.4.0.tgz",
-      "integrity": "sha512-HPpKPUBQcAsZOsHAFwTtIKcYlCje62XB7SEAcxjtmW6TD1WVpkS6i6/hOVtTZIl4zGj/mBqpFVGvaDneik+VoQ==",
+      "version": "3.4.3",
+      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-3.4.3.tgz",
+      "integrity": "sha512-wpc+LXeiyiisxPlEkUzU6svyS1frIO3Mgxj1fdy7Pm8Ygzguax2N3Fa/D/ag1WqbOprdI+uY6wMUl8/a2G+iag==",
       "dev": true,
+      "license": "Apache-2.0",
       "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
       },
@@ -867,17 +907,31 @@
         "url": "https://opencollective.com/eslint"
       }
     },
+    "node_modules/eslint/node_modules/@eslint/js": {
+      "version": "8.57.1",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.57.1.tgz",
+      "integrity": "sha512-d9zaMRSTIKDLhctzH12MtXvJKSSUhaHcjV+2Z+GK+EEY7XKpP5yR4x+N3TAcHTcu963nIr+TMcCb4DBCYX1z6Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+      }
+    },
     "node_modules/eslint/node_modules/eslint-scope": {
-      "version": "7.1.1",
-      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-7.1.1.tgz",
-      "integrity": "sha512-QKQM/UXpIiHcLqJ5AOyIW7XZmzjkzQXYE54n1++wb0u9V/abW3l9uQnxX8Z5Xd18xyKIMTUAyQ0k1e8pz6LUrw==",
+      "version": "7.2.2",
+      "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-7.2.2.tgz",
+      "integrity": "sha512-dOt21O7lTMhDM+X9mB4GX+DZrZtCUJPL/wlcTqxyrx5IvO0IYtILdtrQGQp+8n5S0gwSVmOf9NQrjMOgfQZlIg==",
       "dev": true,
+      "license": "BSD-2-Clause",
       "dependencies": {
         "esrecurse": "^4.3.0",
         "estraverse": "^5.2.0"
       },
       "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/eslint"
       }
     },
     "node_modules/eslint/node_modules/estraverse": {
@@ -885,19 +939,37 @@
       "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-5.3.0.tgz",
       "integrity": "sha512-MMdARuVEQziNTeJD8DgMqmhwR11BRQ/cBP+pLtYdSTnf3MIO8fFeiINEbX36ZdNlfU/7A9f3gUw49B3oQsvwBA==",
       "dev": true,
+      "license": "BSD-2-Clause",
       "engines": {
         "node": ">=4.0"
       }
     },
+    "node_modules/eslint/node_modules/globals": {
+      "version": "13.24.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-13.24.0.tgz",
+      "integrity": "sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "type-fest": "^0.20.2"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/espree": {
-      "version": "9.5.1",
-      "resolved": "https://registry.npmjs.org/espree/-/espree-9.5.1.tgz",
-      "integrity": "sha512-5yxtHSZXRSW5pvv3hAlXM5+/Oswi1AUFqBmbibKb5s6bp3rGIDkyXU6xCoyuuLhijr4SFwPrXRoZjz0AZDN9tg==",
+      "version": "9.6.1",
+      "resolved": "https://registry.npmjs.org/espree/-/espree-9.6.1.tgz",
+      "integrity": "sha512-oruZaFkjorTpF32kDSI5/75ViwGeZginGGy2NoOSg3Q9bnwlnmDm4HLnkl0RE3n+njDXR037aY1+x58Z/zFdwQ==",
       "dev": true,
+      "license": "BSD-2-Clause",
       "dependencies": {
-        "acorn": "^8.8.0",
+        "acorn": "^8.9.0",
         "acorn-jsx": "^5.3.2",
-        "eslint-visitor-keys": "^3.4.0"
+        "eslint-visitor-keys": "^3.4.1"
       },
       "engines": {
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
@@ -970,13 +1042,15 @@
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
       "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
-      "dev": true
+      "dev": true,
+      "license": "MIT"
     },
     "node_modules/fast-glob": {
-      "version": "3.2.12",
-      "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.2.12.tgz",
-      "integrity": "sha512-DVj4CQIYYow0BlaelwK1pHl5n5cRSJfM60UA0zK891sVInoPri2Ekj7+e1CT3/3qxXenpI+nBBmQAcJPJgaj4w==",
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.3.2.tgz",
+      "integrity": "sha512-oX2ruAFQwf/Orj8m737Y5adxDQO0LAB7/S5MnxCdTNDd4p6BsyIVsv9JQsATbTSq8KHRpLwIHbVlUNatxd+1Ow==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
         "@nodelib/fs.stat": "^2.0.2",
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+        "url": "https://opencollective.com/typescript-eslint"
+      },
+      "peerDependencies": {
+        "eslint": "^8.57.0 || ^9.0.0"
+      }
+    },
+    "node_modules/typescript-eslint/node_modules/@typescript-eslint/visitor-keys": {
+      "version": "8.8.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.8.0.tgz",
+      "integrity": "sha512-8mq51Lx6Hpmd7HnA2fcHQo3YgfX1qbccxQOgZcb4tvasu//zXRaA1j5ZRFeCw/VRAdFi4mRM9DnZw0Nu0Q2d1g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@typescript-eslint/types": "8.8.0",
+        "eslint-visitor-keys": "^3.4.3"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      }
+    },
+    "node_modules/typescript-eslint/node_modules/brace-expansion": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
+      "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
+    },
+    "node_modules/typescript-eslint/node_modules/minimatch": {
+      "version": "9.0.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.5.tgz",
+      "integrity": "sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "brace-expansion": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=16 || 14 >=14.17"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
     "node_modules/uri-js": {
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
       "integrity": "sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==",
       "dev": true,
+      "license": "BSD-2-Clause",
       "dependencies": {
         "punycode": "^2.1.0"
       }
@@ -2229,10 +2551,11 @@
       }
     },
     "node_modules/word-wrap": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
-      "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==",
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.5.tgz",
+      "integrity": "sha512-BN22B5eaMMI9UMtjrGd5g5eCYPpCPDUy0FJXbYsaT5zYxjFOckS53SQDE3pWkVoWpHXVb3BrYcEN4Twa55B5cA==",
       "dev": true,
+      "license": "MIT",
       "engines": {
         "node": ">=0.10.0"
       }
@@ -2275,12 +2598,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/yallist": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
-      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
-      "dev": true
-    },
     "node_modules/yargs": {
       "version": "16.2.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-16.2.0.tgz",
diff --git a/package.json b/package.json
index b97a487..9b02743 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,10 @@
     "vscode": "^1.76.0"
   },
   "publisher": "DrewAvis",
-  "repository": {"type":"git","url":"https://github.com/drewavis/markdowninclude"},
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/drewavis/markdowninclude"
+  },
   "homepage": "https://github.com/drewavis/markdowninclude/blob/main/README.md",
   "license": "SEE LICENSE IN LICENSE.txt",
   "bugs": {
@@ -29,7 +32,6 @@
             "default": false,
             "description": "Update snippet includes on save."
           }
-
         }
       }
     ],
@@ -53,20 +55,23 @@
     "compile": "tsc -p ./",
     "watch": "tsc -watch -p ./",
     "pretest": "npm run compile && npm run lint",
-    "lint": "eslint src --ext ts",
+    "lint": "eslint src",
     "test": "node ./out/test/runTest.js"
   },
   "devDependencies": {
-    "@types/vscode": "^1.76.0",
+    "@eslint/js": "^9.12.0",
     "@types/glob": "^8.1.0",
     "@types/mocha": "^10.0.1",
     "@types/node": "16.x",
+    "@types/vscode": "^1.76.0",
     "@typescript-eslint/eslint-plugin": "^5.56.0",
     "@typescript-eslint/parser": "^5.56.0",
-    "eslint": "^8.36.0",
+    "@vscode/test-electron": "^2.3.0",
+    "eslint": "^8.57.1",
     "glob": "^8.1.0",
+    "globals": "^15.10.0",
     "mocha": "^10.2.0",
     "typescript": "^4.9.5",
-    "@vscode/test-electron": "^2.3.0"
+    "typescript-eslint": "^8.8.0"
   }
-}
\ No newline at end of file
+}
diff --git a/src/extension.ts b/src/extension.ts
index d60a77e..27d76d3 100644
--- a/src/extension.ts
+++ b/src/extension.ts
@@ -77,14 +77,18 @@ export function deactivate() { }
 
 class SnippetInfo {
 	lineStart: number;
+	columnStart: number;
 	lineEnd: number;
+	columnEnd: number;
 	fileName: string;
 	snippetName: string;
 	snippetContent: string;
 
 	constructor() {
 		this.lineStart = -1;
+		this.columnStart = -1;
 		this.lineEnd = -1;
+		this.columnEnd = -1;
 		this.fileName = "";
 		this.snippetName = "";
 		this.snippetContent = "";
@@ -128,8 +132,8 @@ class IncludeManager {
 	private _includeSnippet: string = "<!-- include: -->\n<!-- /include-->";
 
 
-	private _includeRegExp: RegExp = /^<!--\s*include:\s*([^>]*)\s*-->/;
-	private _includeEnd: RegExp = /^<!--\s*\/include\s*-->/;
+	private _includeRegExp: RegExp = /(<!--\s*include:\s*)([^>]*)(\s*-->)/;
+	private _includeEnd: RegExp = /<!--\s*\/include\s*-->/;
 	// public markerArray = vscode.workspace.getConfiguration('mdsnip').get("snippetMarkers", new Array<string>);
 	// console.log(`config: ${JSON.stringify(configuration.snippetMarkers)}`);
 
@@ -139,8 +143,6 @@ class IncludeManager {
 		vscode.window.activeTextEditor?.insertSnippet(new vscode.SnippetString(this._includeSnippet));
 	}
 
-
-
 	getFileSupportRegex(ext: string) {
 		let snippetRegex: string = "";
 		let addCodeBlock: boolean = false;
@@ -156,257 +158,363 @@ class IncludeManager {
 	}
 
 	updateAllSnippets(editor: vscode.TextEditor, snips: Array<SnippetInfo>): void {
+		// Create a sorted copy of snippets in reverse order to prevent position conflicts
+		const sortedSnips = snips.slice().sort((a, b) => {
+			if (a.lineStart !== b.lineStart) {
+				return b.lineStart - a.lineStart; // Descending line order
+			}
+			return b.columnStart - a.columnStart; // Descending column order
+		});
+	
 		editor.edit(editBuilder => {
-			for (var snip of snips.reverse()) {
-				if (snip.lineStart + 1 === snip.lineEnd) {
-					// insert
-					console.log(`inserting${snip.snippetName} at ${snip.lineEnd}`);
-					editBuilder.insert(new vscode.Position(snip.lineEnd, 0), snip.snippetContent);
+			for (const snip of sortedSnips) {
+				const startPos = new vscode.Position(snip.lineStart, snip.columnStart);
+				const endPos = new vscode.Position(snip.lineEnd, snip.columnEnd);
+				const range = new vscode.Range(startPos, endPos);
+	
+				if (snip.lineStart === snip.lineEnd && snip.columnStart === snip.columnEnd) {
+					// Insert snippet at the starting position
+					console.log(`Inserting "${snip.snippetName}" at (${snip.lineStart}, ${snip.columnStart})`);
+					editBuilder.insert(startPos, snip.snippetContent);
 				} else {
-					// replace
-					console.log(`replacing${snip.snippetName} at ${snip.lineStart}-${snip.lineEnd}`);
-					editBuilder.replace(new vscode.Range(new vscode.Position(snip.lineStart + 1, 0), new vscode.Position(snip.lineEnd, 0)), snip.snippetContent);
+					// Replace a range of text with the snippet
+					console.log(`Replacing "${snip.snippetName}" from (${snip.lineStart}, ${snip.columnStart}) to (${snip.lineEnd}, ${snip.columnEnd})`);
+					editBuilder.replace(range, snip.snippetContent);
 				}
-
 			}
 		}).then(success => {
-			console.log(`edit succeded: ${success}`);
-
+			if (success) {
+				console.log('Edit succeeded.');
+				vscode.window.showInformationMessage('Snippets updated successfully.');
+			} else {
+				console.warn('Edit failed.');
+				vscode.window.showWarningMessage('Failed to update snippets.');
+			}
+		}, error => {
+			console.error(`Edit encountered an error: ${error}`);
+			vscode.window.showErrorMessage(`Error updating snippets: ${error.message}`);
 		});
-
 	}
-
+	
 	findAllSnippetSections(doc: vscode.TextDocument, problems: vscode.DiagnosticCollection): Array<SnippetInfo> {
-		let snippetInfos: Array<SnippetInfo> = new Array<SnippetInfo>;
-		let snipInfo: SnippetInfo = new SnippetInfo();
-
-		// clear existing problems
+		let snippetInfos: Array<SnippetInfo> = [];
+		let snipInfo: SnippetInfo | null = null; // Use null to indicate no active snippet
+	
+		// Clear existing problems
 		let probs: Array<vscode.Diagnostic> = [];
-
-		for (var linenum = 0; linenum < doc.lineCount; linenum++) {
-			let lineText: string = doc.lineAt(linenum).text.trim();
-			if (this._includeRegExp.test(lineText)) {
-				// we have started a new snippet
-
-				snipInfo.lineStart = linenum;
-				let res = this._includeRegExp.exec(lineText);
-
-				if (res && res.length > 1) {
-					let includePath: string = res[1];
-					// vscode.window.showInformationMessage('found include:' + includePath);
-					let snipName = "";
-					if (includePath.includes('#')) {
-						let arr = includePath.split('#');
-						includePath = arr[0];
-						snipName = arr[1].trim();
-						snipInfo.fileName = includePath;
-						snipInfo.snippetName = snipName;
-
-					}
-					// include the whole thing
-					else {
-						snipInfo.fileName = includePath;
-						snipInfo.snippetName = "all";
-					}
-					// console.log("snip: " + snipName);
-					let docPath = doc.fileName;
-					//const file = readFileSync(includePath);
-					includePath = path.resolve(path.dirname(docPath), includePath);
-					// console.log(includePath);
-					let ext = snipInfo.fileName.substring(snipInfo.fileName.lastIndexOf('.'));
-
-					let fileSupportOptions = this.getFileSupportRegex(ext);
-					let snipStr: string = fileSupportOptions.snippetRegex;
-
-					if (snipStr === "") {
-						probs.push({
-							code: '',
-							message: `File type not supported: ${includePath}`,
-							severity: vscode.DiagnosticSeverity.Error,
-							source: 'Markdown Snippet',
-							range: new vscode.Range(new vscode.Position(linenum, 0), new vscode.Position(linenum, lineText.length))
-						});
-					}
-
-
-					else if (!existsSync(includePath)) {
-						probs.push({
-							code: '',
-							message: `File not found: ${includePath}`,
-							severity: vscode.DiagnosticSeverity.Error,
-							source: 'Markdown Snippet',
-							range: new vscode.Range(new vscode.Position(linenum, 0), new vscode.Position(linenum, lineText.length))
-						});
-					}
-
-					// we can proceed and read the file
-					else {
-						const content = readFileSync(includePath, 'utf-8');
-
-						// console.log(content);
-						snipStr = snipStr.replaceAll("${snipName}", snipName);
-						let snip = new RegExp(snipStr, "sm");
-
-						res = snip.exec(content);
-						if (res && res.length > 1) {
-							let snippetStr = res[1];
-							let snipCodeFence = "";
-							let snipCodeFenceEnd = "\n";
-							if (fileSupportOptions.addCodeBlock) {
-								snipCodeFence = '```' + ext.slice(1) + '\n';
-								snipCodeFenceEnd = '\n```\n';
-							}
-							// console.log(`snippet: ${snippetStr}`);
-							snipInfo.snippetContent = `${snipCodeFence}${snippetStr.trim()}${snipCodeFenceEnd}`;
-						}
-						else {
-							//  no snip name
-							probs.push({
-								code: '',
-								message: `snippet name ${snipName} not found in file: ${includePath}`,
-								severity: vscode.DiagnosticSeverity.Error,
-								source: 'Markdown Snippet',
-								range: new vscode.Range(new vscode.Position(linenum, 0), new vscode.Position(linenum, lineText.length))
-							});
-
-
-						}
+	
+		for (let linenum = 0; linenum < doc.lineCount; linenum++) {
+			let line = doc.lineAt(linenum);
+			let lineText: string = line.text; // Use full line text to get accurate column positions
+	
+			// Check for snippet inclusion start
+			let includeMatch = this._includeRegExp.exec(lineText);
+			if (includeMatch) {
+				// Initialize a new SnippetInfo object
+				snipInfo = {
+					snippetName: "",
+					snippetContent: "",
+					fileName: "",
+					lineStart: linenum,
+					columnStart: includeMatch.index + includeMatch[0].length, // Capture the starting column
+					lineEnd: linenum,    // Temporary, will be updated when end is found
+					columnEnd: includeMatch.index + includeMatch[0].length, // Temporary
+				};
+	
+				// Extract include path from the regex capture group
+				let includePath: string = includeMatch[2].trim();
+	
+				let snipName = "";
+				if (includePath.includes('#')) {
+					let arr = includePath.split('#');
+					includePath = arr[0].trim();
+					snipName = arr[1].trim();
+					snipInfo.fileName = includePath;
+					snipInfo.snippetName = snipName;
+				} else {
+					snipInfo.fileName = includePath;
+					snipInfo.snippetName = "all";
+				}
+	
+				// Resolve the full path relative to the document
+				let docPath = doc.fileName;
+				includePath = path.resolve(path.dirname(docPath), includePath);
+	
+				let ext = path.extname(snipInfo.fileName);
+	
+				let fileSupportOptions = this.getFileSupportRegex(ext);
+				let snipStr: string = fileSupportOptions.snippetRegex;
+	
+				if (snipStr === "") {
+					probs.push({
+						code: '',
+						message: `File type not supported: ${includePath}`,
+						severity: vscode.DiagnosticSeverity.Error,
+						source: 'Markdown Snippet',
+						range: new vscode.Range(
+							new vscode.Position(linenum, 0),
+							new vscode.Position(linenum, lineText.length)
+						)
+					});
+					snipInfo = null; // Reset as we cannot proceed
+					continue; // Move to next line
+				}
+	
+				if (!existsSync(includePath)) {
+					probs.push({
+						code: '',
+						message: `File not found: ${includePath}`,
+						severity: vscode.DiagnosticSeverity.Error,
+						source: 'Markdown Snippet',
+						range: new vscode.Range(
+							new vscode.Position(linenum, 0),
+							new vscode.Position(linenum, lineText.length)
+						)
+					});
+					snipInfo = null; // Reset as we cannot proceed
+					continue; // Move to next line
+				}
+	
+				// Read and process the snippet file
+				const content = readFileSync(includePath, 'utf-8');
+	
+				snipStr = snipStr.replaceAll("${snipName}", snipName);
+				let snipRegex = new RegExp(snipStr, "sm");
+	
+				let snippetMatch = snipRegex.exec(content);
+				if (snippetMatch && snippetMatch.length > 1) {
+					let snippetStr = snippetMatch[1];
+					let snipCodeFence = "";
+					let snipCodeFenceEnd = "";
+					if (fileSupportOptions.addCodeBlock) {
+						snipCodeFence = '```' + ext.slice(1) + '\n';
+						snipCodeFenceEnd = '\n```\n';
 					}
+					snipInfo.snippetContent = `${snipCodeFence}${snippetStr}${snipCodeFenceEnd}`;
+				} else {
+					// Snippet name not found in the file
+					probs.push({
+						code: '',
+						message: `Snippet name "${snipName}" not found in file: ${includePath}`,
+						severity: vscode.DiagnosticSeverity.Error,
+						source: 'Markdown Snippet',
+						range: new vscode.Range(
+							new vscode.Position(linenum, 0),
+							new vscode.Position(linenum, lineText.length)
+						)
+					});
+					snipInfo = null; // Reset as snippet not found
+					continue; // Move to next line
 				}
-
+	
 			}
-			else if (this._includeEnd.test(lineText)) {
-				// we're at the end of a include section
+	
+			// Check for snippet inclusion end
+			let includeEndMatch = this._includeEnd.exec(lineText);
+			if (includeEndMatch && snipInfo) {
+				// Set the end line and column
 				snipInfo.lineEnd = linenum;
+				snipInfo.columnEnd = includeEndMatch.index;
+	
+				// Add the completed SnippetInfo to the array
 				snippetInfos.push(snipInfo);
-				snipInfo = new SnippetInfo();
+				snipInfo = null; // Reset for the next snippet
+				continue; // Move to next line
 			}
+	
+			// Optionally, handle lines within a snippet section if needed
+			// For example, if snippets can span multiple lines with content in between
 		}
+	
+		// Handle unclosed snippet sections
+		if (snipInfo) {
+			probs.push({
+				code: '',
+				message: `Snippet section starting at line ${snipInfo.lineStart + 1} is not closed.`,
+				severity: vscode.DiagnosticSeverity.Error,
+				source: 'Markdown Snippet',
+				range: new vscode.Range(
+					new vscode.Position(snipInfo.lineStart, snipInfo.columnStart),
+					new vscode.Position(snipInfo.lineStart, snipInfo.columnStart + 1)
+				)
+			});
+		}
+	
+		// Set the collected diagnostics
 		problems.set(doc.uri, probs);
-
+	
 		return snippetInfos;
 	} // end findAllSnippetSections
 
 	// This is like the findAllSnippetSections() above, except it works on a file path rather than a
 	// vscode.TextDocument.  This allows us to read through a series of files in the workspace and update them
 	// Downside: we don't have access to the editor problems list
-	findAllSnippetsAndUpdateFileSilently(filePath: vscode.Uri,): boolean {
-		let snippetInfos: Array<SnippetInfo> = new Array<SnippetInfo>;
-		let snipInfo: SnippetInfo = new SnippetInfo();
-		let content = readFileSync(filePath.fsPath);
-
-		let lines = content.toString().split('\n');
-		for (var linenum = 0; linenum < lines.length; linenum++) {
-			let lineText: string = lines[linenum].trim();
-			if (this._includeRegExp.test(lineText)) {
-				// we have started a new snippet
-
-				snipInfo.lineStart = linenum;
-				let res = this._includeRegExp.exec(lineText);
-
-				if (res && res.length > 1) {
-					let includePath: string = res[1];
-					// vscode.window.showInformationMessage('found include:' + includePath);
-					let snipName = "";
-					if (includePath.includes('#')) {
-						let arr = includePath.split('#');
-						includePath = arr[0];
-						snipName = arr[1];
-						snipInfo.fileName = includePath;
-						snipInfo.snippetName = snipName;
-
-					}
-					// include the whole thing
-					else {
-						snipInfo.fileName = includePath;
-						snipInfo.snippetName = "all";
-					}
-					// console.log("snip: " + snipName);
-
-					//const file = readFileSync(includePath);
-					includePath = path.resolve(path.dirname(filePath.fsPath), includePath);
-					// console.log(includePath);
-					let ext = snipInfo.fileName.substring(snipInfo.fileName.lastIndexOf('.'));
-
-					let fileSupportOptions = this.getFileSupportRegex(ext);
-					let snipStr: string = fileSupportOptions.snippetRegex;
-
-					if (snipStr === "") {
-
-						// file type not supported
-					}
-
-
-					else if (!existsSync(includePath)) {
-						// file not found
-					}
-
-					// we can proceed and read the file
-					else {
-
-						const content = readFileSync(includePath, 'utf-8');
-
-						snipStr = snipStr.replaceAll("${snipName}", snipName);
-						let snip = new RegExp(snipStr, "sm");
-
-						// console.log("regex: " + _snip.source);
-
-						res = snip.exec(content);
-						if (res && res.length > 1) {
-							let snippetStr = res[1];
-							let snipCodeFence = "";
-							let snipCodeFenceEnd = "\n";
-							if (fileSupportOptions.addCodeBlock) {
-								snipCodeFence = '```' + ext.slice(1) + '\n';
-								snipCodeFenceEnd = '\n```\n';
-							}
-							// console.log(`snippet: ${snippetStr}`);
-							snipInfo.snippetContent = `${snipCodeFence}${snippetStr.trim()}${snipCodeFenceEnd}`;
-						}
-
-						else {
-							//  no snip name
-
-
-						}
+	findAllSnippetsAndUpdateFileSilently(filePath: vscode.Uri): boolean {
+		let snippetInfos: Array<SnippetInfo> = [];
+		let snipInfo: SnippetInfo | null = null; // Use null to indicate no active snippet
+		let content = readFileSync(filePath.fsPath, 'utf-8');
+	
+		let lines = content.split('\n');
+	
+		for (let linenum = 0; linenum < lines.length; linenum++) {
+			let lineText: string = lines[linenum]; // Use full line text to get accurate column positions
+	
+			// Check for snippet inclusion start
+			let includeMatch = this._includeRegExp.exec(lineText);
+			if (includeMatch) {
+				// Handle overlapping snippets
+				if (snipInfo) {
+					// Previous snippet was not closed
+					// Optionally, log or handle this scenario
+					// For this example, we'll skip starting a new snippet until the previous is closed
+					console.error(`Snippet section starting at line ${snipInfo.lineStart + 1} is not closed before starting a new one.`);
+					// Optionally, reset snipInfo
+					snipInfo = null;
+				}
+	
+				// Initialize a new SnippetInfo object
+				snipInfo = {
+					snippetName: "",
+					snippetContent: "",
+					fileName: "",
+					lineStart: linenum,
+					columnStart: includeMatch.index + includeMatch[0].length, // Capture the starting column
+					lineEnd: linenum,    // Temporary, will be updated when end is found
+					columnEnd: includeMatch.index + includeMatch[0].length// Temporary
+				};
+	
+				// Extract include path from the regex capture group
+				let includePath: string = includeMatch[2].trim();
+	
+				let snipName = "";
+				if (includePath.includes('#')) {
+					let arr = includePath.split('#');
+					includePath = arr[0].trim();
+					snipName = arr[1].trim();
+					snipInfo.fileName = includePath;
+					snipInfo.snippetName = snipName;
+				} else {
+					snipInfo.fileName = includePath;
+					snipInfo.snippetName = "all";
+				}
+	
+				// Resolve the full path relative to the document
+				let docPath = filePath.fsPath;
+				includePath = path.resolve(path.dirname(docPath), includePath);
+	
+				let ext = path.extname(snipInfo.fileName);
+	
+				let fileSupportOptions = this.getFileSupportRegex(ext);
+				let snipStr: string = fileSupportOptions.snippetRegex;
+	
+				if (snipStr === "") {
+					// File type not supported
+					console.error(`File type not supported: ${includePath}`);
+					// Optionally, log or handle this scenario
+					snipInfo = null; // Reset as we cannot proceed
+					continue; // Move to next line
+				}
+	
+				if (!existsSync(includePath)) {
+					// File not found
+					console.error(`File not found: ${includePath}`);
+					// Optionally, log or handle this scenario
+					snipInfo = null; // Reset as we cannot proceed
+					continue; // Move to next line
+				}
+	
+				// Read and process the snippet file
+				const snippetFileContent = readFileSync(includePath, 'utf-8');
+	
+				snipStr = snipStr.replaceAll("${snipName}", snipName);
+				let snipRegex = new RegExp(snipStr, "sm");
+	
+				let snippetMatch = snipRegex.exec(snippetFileContent);
+				if (snippetMatch && snippetMatch.length > 1) {
+					let snippetStr = snippetMatch[1];
+					let snipCodeFence = "";
+					let snipCodeFenceEnd = "";
+					if (fileSupportOptions.addCodeBlock) {
+						snipCodeFence = '```' + ext.slice(1) + '\n';
+						snipCodeFenceEnd = '\n```\n';
 					}
+					snipInfo.snippetContent = `${snipCodeFence}${snippetStr}${snipCodeFenceEnd}`;
+				} else {
+					// Snippet name not found in the file
+					console.error(`Snippet name "${snipName}" not found in file: ${includePath}`);
+					// Optionally, log or handle this scenario
+					snipInfo = null; // Reset as snippet not found
+					continue; // Move to next line
 				}
-
+	
+				// Continue to next line to find the end of the snippet section
+				continue;
 			}
-			else if (this._includeEnd.test(lineText)) {
-				// we're at the end of a include section
+	
+			// Check for snippet inclusion end
+			let includeEndMatch = this._includeEnd.exec(lineText);
+			if (includeEndMatch && snipInfo) {
+				// Set the end line and column
 				snipInfo.lineEnd = linenum;
+				snipInfo.columnEnd = includeEndMatch.index;
+	
+				// Add the completed SnippetInfo to the array
 				snippetInfos.push(snipInfo);
-				snipInfo = new SnippetInfo();
+				snipInfo = null; // Reset for the next snippet
+				continue; // Move to next line
 			}
+	
+			// Optionally, handle lines within a snippet section if needed
+			// For example, if snippets can span multiple lines with content in between
 		}
-
-		// why don't we just do the replace here?
-
-		for (var snip of snippetInfos.reverse()) {
-
-			if (snip.lineStart + 1 === snip.lineEnd) {
-				// insert
-				console.log(`inserting${snip.snippetName} at ${snip.lineEnd}`);
-				lines.splice(snip.lineEnd, 0, snip.snippetContent.trim());
-			}
-
-			else {
-				// replace
-				console.log(`replacing${snip.snippetName} at ${snip.lineStart}-${snip.lineEnd}`);
-				lines.splice(snip.lineStart + 1, (snip.lineEnd-snip.lineStart -1), snip.snippetContent.trim());
-				
+	
+		// Handle unclosed snippet sections
+		if (snipInfo) {
+			console.error(`Snippet section starting at line ${snipInfo.lineStart + 1} is not closed.`);
+			// Optionally, handle this scenario
+		}
+	
+		// Process the snippets in reverse order to avoid affecting subsequent positions
+		for (let snip of snippetInfos.reverse()) {
+			if (snip.lineStart === snip.lineEnd) {
+				// Snippet start and end are on the same line
+				// Replace the text between columnStart and columnEnd with snippetContent
+				let line = lines[snip.lineStart];
+				let before = line.substring(0, snip.columnStart);
+				let after = line.substring(snip.columnEnd);
+				lines[snip.lineStart] = before + snip.snippetContent.trim() + after;
+				console.log(`Replacing "${snip.snippetName}" on line ${snip.lineStart + 1} at columns ${snip.columnStart}-${snip.columnEnd}`);
+			} else {
+				// Snippet spans multiple lines
+				// Replace from columnStart of lineStart to columnEnd of lineEnd
+				let firstLine = lines[snip.lineStart];
+				let lastLine = lines[snip.lineEnd];
+	
+				let before = firstLine.substring(0, snip.columnStart);
+				let after = lastLine.substring(snip.columnEnd);
+	
+				// Replace the lines between lineStart and lineEnd with snippetContent
+				// Include the modified first and last lines with before and after
+				let newSnippetLines = snip.snippetContent.trim().split('\n');
+	
+				// Merge the before part, newSnippetLines, and after part
+				let mergedLines = before + newSnippetLines[0];
+				if (newSnippetLines.length > 1) {
+					mergedLines += '\n' + newSnippetLines.slice(1).join('\n');
+				}
+				mergedLines += after;
+	
+				// Remove the lines to be replaced and insert the merged lines
+				lines.splice(snip.lineStart, snip.lineEnd - snip.lineStart + 1, mergedLines);
+				console.log(`Replacing "${snip.snippetName}" from line ${snip.lineStart + 1} to line ${snip.lineEnd + 1}`);
 			}
 		}
-
-		// write the file
-		writeFileSync(filePath.fsPath, lines.join('\n') );
-
+	
+		// Write the modified content back to the file
+		writeFileSync(filePath.fsPath, lines.join('\n'), 'utf-8');
+	
 		return true;
-
-	} // end findAllSnippetSectionsFile
-
-
+	} // end findAllSnippetsAndUpdateFileSilently
 
 }
 
diff --git a/test/doc.md b/test/doc.md
new file mode 100644
index 0000000..25f2323
--- /dev/null
+++ b/test/doc.md
@@ -0,0 +1,7 @@
+# Project Overview
+
+Here is an important process:
+
+<!-- include: snippets.md#appRequest --><!-- /include -->
+
+Thank you! <!-- include: snippets.md#too --><!-- /include -->
diff --git a/test/snippets.md b/test/snippets.md
new file mode 100644
index 0000000..5b58c23
--- /dev/null
+++ b/test/snippets.md
@@ -0,0 +1,5 @@
+<!-- snippet: appRequest -->
+The app sends a request to the service 2
+Multiple lines
+<!-- /snippet -->
+<!-- snippet: too -->too here<!-- /snippet -->