function::pp - Linux
Overview
pp is a command-line tool that provides pretty-printing and syntax highlighting capabilities for various programming languages. It reformats code to enhance readability, consistency, and debugging. It is particularly useful for displaying code snippets in documentation, blog posts, and presentations.
Syntax
pp [options] [input file or string]
Options
- -l, –language
: Specify the programming language of the input code (e.g., python, java). If omitted, autodetection is attempted. - -s, –style
: Choose a predefined styling theme (e.g., default, solarized). - -w, --width
: Set the maximum line width for output (default: 80). - -n, --num-lines
: Limit the number of lines displayed in the output (default: 0, no limit). - --indent
: Indent each line by the specified number of spaces (default: 2). - --no-color: Disable colorized output.
- --help: Display help information.
- --version: Show version information.
Examples
Simple Example:
pp python3
print("Hello world!")
Highlighting Code with Style:
pp -s solarized
class MyClass:
def __init__(self, name):
self.name = name
print(f"Hello, {self.name}!")
Limiting Output Length:
pp --num-lines 10
for i in range(100):
print(f"Number {i}")
Common Issues
- Error: Language autodetection failed: If autodetection fails, specify the language explicitly using the
-l
option. - Formatting Issues: Ensure that the input code follows proper syntax and indentation guidelines for the chosen language.
- Color Display Errors: Check if your terminal supports colorized output. If not, use the
--no-color
option.
Integration
Displaying Code in Markdown:
```markdown
`
pp python3
print("Hello Markdown!")
`
Using with Pipes:
cat code.py | pp -l python3
Related Commands
- highlight: Syntax highlighting for source code using ANSI escape codes.
- source-highlight: Syntax highlighting with a wider range of supported languages.
- prismjs: Browser-based library for code highlighting and beautification.