Struct ShellMetaRule 

pub struct ShellMetaRule { /* private fields */ }

Rejects input containing shell metacharacters.

Default denied characters: ;, |, &, $, `, (, ), {, }, <, >, !, #, \, ', ", ~, \n, \r.

Rationale

These characters enable:

• Command chaining (;, &&, ||)
• Piping (|)
• Subshell / command substitution ($(), `)
• Redirection (<, >)
• Backgrounding (&)
• Comment injection (#)
• Home directory expansion (~)

Implementations

impl ShellMetaRule

pub fn with_denied(denied: Vec<char>) -> Self

Create a rule with a custom set of denied characters.

pub fn with_extra_denied(extra: &[char]) -> Self

Create a rule with additional denied characters on top of defaults.

Trait Implementations

impl Default for ShellMetaRule

fn default() -> Self

Returns the “default value” for a type.

impl Rule for ShellMetaRule

fn name(&self) -> &'static str

A unique, human-readable identifier for this rule.

fn check(&self, input: &str) -> RuleResult

Check the input and return violations, if any.