DMELL Script Language Support
Syntax highlighting for DMELL Script (.dme) files in Visual Studio Code.
Features
This extension provides syntax highlighting for DMELL script files, including:
- Shebang: Lines starting with
#! (e.g., #!/bin/dmell)
- Comments: Lines starting with
#
- Built-in Commands:
echo, set, unset, export, cd, pwd, exit
- Variables:
- Simple variables:
$varname
- Bracket variables:
${varname}
- Special variables:
$? (last exit code), $0, $1, etc. (positional parameters)
- Strings: Double-quoted and single-quoted strings
- Variable Expansion: Variables expanded within double-quoted strings
- Escape Sequences: Support for
\\, \", \', \n, \r, \t
DMELL script files (.dme) use a shell-like syntax:
#!/bin/dmell
# This is a comment
echo "Hello, dmell!"
# Set a variable
set myvar=value
export PATH=/usr/bin
# Variable assignment (alternative syntax)
myvar=value
# Use variables
echo "myvar = $myvar"
echo "Exit code: $?"
# Change directory
cd /home/user
pwd
# Exit with code
exit 0
Built-in Commands
| Command |
Description |
Example |
echo |
Print arguments to standard output |
echo "Hello World" |
set |
Set a shell variable |
set myvar=value |
export |
Export a variable to environment |
export PATH=/usr/bin |
unset |
Unset a variable |
unset myvar |
cd |
Change current directory |
cd /home/user |
pwd |
Print current working directory |
pwd |
exit |
Exit the shell with optional exit code |
exit 0 |
Variables
Variables can be referenced in two ways:
- Simple syntax:
$varname
- Bracket syntax:
${varname} (useful when variable is followed by alphanumeric characters)
Special variables:
$? - Exit code of the last executed command$0, $1, $2, ... - Positional parameters (script arguments)
Strings
- Double-quoted strings (
"...") - Variables are expanded
- Single-quoted strings (
'...') - Variables are NOT expanded (literal)
Installation
From Source
Copy the vscode-dme directory to your VS Code extensions folder:
- Windows:
%USERPROFILE%\.vscode\extensions\
- macOS/Linux:
~/.vscode/extensions/
Reload VS Code
Package and Install
Install vsce (Visual Studio Code Extension Manager):
npm install -g @vscode/vsce
Package the extension:
cd tools/vscode-dme
vsce package
Install the generated .vsix file:
code --install-extension dmell-script-1.0.0.vsix
Usage
Once installed, the extension automatically provides syntax highlighting for all files with the .dme extension.
License
This extension is part of the DMELL project. See the main repository for license information.
Repository
https://github.com/choco-technologies/dmell
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