oakenai/mcp-edit-file-lines

A TypeScript-based MCP server that provides tools for making precise line-based edits to text files within allowed directories.
## Features
### Main Editing Tool
#### editfilelines
Make line-based edits to a file using string or regex pattern matching. Each edit can:
Replace entire lines
Replace specific text matches while preserving line formatting
Use regex patterns for complex matches
Handle multiple lines and multiple edits
Preview changes with dry run mode
Example file (src/components/App.tsx):
typescript
// Basic component with props
const Button = ({ color = "blue", size = "md" }) => {
return Click me ;
};
// Component with multiple props and nested structure
export const Card = ({
title,
subtitle = "Default subtitle",
theme = "light",
size = "lg",
}) => {
const cardClass = card-${theme} size-${size};
return (
{title}
{subtitle}
);
};
// Constants and configurations
const THEME = {
light: { bg: "#ffffff", text: "#000000" },
dark: { bg: "#000000", text: "#ffffff" },
};
const CONFIG = {
apiUrl: "https://api.example.com",
timeout: 5000,
retries: 3,
};
### Example Use Cases
1. Simple String Replacement
json
"p": "src/components/App.tsx",
"e": [{
"startLine": 2,
"endLine": 2,
"content": "primary",
"strMatch": "blue"
}],
"dryRun": true
Output:
diff
Index: src/components/App.tsx
===================================================================
--- src/components/App.tsx original
+++ src/components/App.tsx modified
@@ -1,6 +1,6 @@
// Basic component with props
-const Button = ({ color = "blue", size = "md" }) => {
+const Button = ({ color = "primary", size = "md" }) => {
return Click me;
};
// Component with multiple props and nested structure
State ID: fcbf740a
Use this ID with approveedit to apply the changes.
2. Multi-line Content with Preserved Structure
json
"p": "src/components/App.tsx",
"e": [{
"startLine": 16,
"endLine": 19,
"content": " \n {title} \n {subtitle} \n ",
"regexMatch": " ]>[\\s\\S]? "
}],
"dryRun": true
Output:
diff
Index: src/components/App.tsx
===================================================================
--- src/components/App.tsx original
+++ src/components/App.tsx modified
@@ -13,10 +13,10 @@
const cardClass = card-${theme} size-${size};
return (
{title}
{subtitle}
{title}
{subtitle}
);
};
State ID: f2ce973f
Use this ID with approveedit to apply the changes.
3. Complex JSX Structure Modification
json
"p": "src/components/App.tsx",
"e": [{
"startLine": 7,
"endLine": 12,
"content": "export const Card = ({\n title,\n subtitle = \"New default\",\n theme = \"modern\",\n size = \"responsive\"\n}) => {",
"regexMatch": "export const Card[\\s\\S]?\\) => \\{"
}],
"dryRun": true
Output:
diff
Index: src/components/App.tsx
===================================================================
--- src/components/App.tsx original
+++ src/components/App.tsx modified
@@ -5,11 +5,11 @@
// Component with multiple props and nested structure
export const Card = ({
title,
subtitle = "Default subtitle",
theme = "light",
size = "lg",
subtitle = "New default",
theme = "modern",
size = "responsive"
}) => {
const cardClass = card-${theme} size-${size};
return (
State ID: f1f1d27b
Use this ID with approveedit to apply the changes.
4. Configuration Update with Whitespace Preservation
json