Implement matchers and actions

Cargo.lock

@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "aho-corasick"
+version = "0.7.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e37cfd5e7657ada45f742d6e99ca5788580b5c529dc78faf11ece6dc702656f"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "anyhow"
 version = "1.0.45"
@@ -46,6 +55,7 @@ dependencies = [
  "anyhow",
  "clipboard",
  "dirs",
+ "regex",
  "serde",
  "serde_derive",
  "toml",
@@ -115,6 +125,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "memchr"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
+
 [[package]]
 name = "objc"
 version = "0.2.7"
@@ -181,6 +197,23 @@ dependencies = [
  "redox_syscall",
 ]
 
+[[package]]
+name = "regex"
+version = "1.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
+
 [[package]]
 name = "serde"
 version = "1.0.130"

Cargo.toml

@@ -17,6 +17,7 @@ readme = "README.md"
 anyhow = "1.0.45"
 clipboard = "0.5.0"
 dirs = "4.0.0"
+regex = "1.5.4"
 serde = "1.0.130"
 serde_derive = "1.0.130"
 toml = "0.5.8"

src/config.rs

@@ -1,4 +1,7 @@
 #![allow(dead_code)]
+use std::str::FromStr;
+
+use regex::Regex;
 use serde_derive::Deserialize;
 
 #[derive(Clone, Debug, Default, Deserialize)]
@@ -13,6 +16,14 @@ pub struct Substitutor {
     pub action: Action,
 }
 
+pub trait Match {
+    fn check_match<'a>(self: Self, string: &'a str) -> bool;
+}
+
+pub trait Act {
+    fn apply_action(self: Self, input: String) -> String;
+}
+
 #[derive(Clone, Debug, Deserialize)]
 pub enum Matcher {
     #[serde(rename = "starts_with")]
@@ -25,6 +36,20 @@ pub enum Matcher {
     Regex { pattern: String },
 }
 
+impl Match for Matcher {
+    fn check_match<'a>(self: Self, string: &'a str) -> bool {
+        return match self {
+            Matcher::StartsWith { prefix } => string.starts_with(&prefix),
+            Matcher::EndsWith { suffix } => string.ends_with(&suffix),
+            Matcher::Contains { substring } => string.contains(&substring),
+            Matcher::Regex { pattern } => {
+                let regex = Regex::from_str(&pattern).expect("Failed to parse regex");
+                regex.is_match(&string)
+            }
+        };
+    }
+}
+
 #[derive(Clone, Debug, Deserialize)]
 pub enum Action {
     #[serde(rename = "replace")]
@@ -36,3 +61,14 @@ pub enum Action {
     #[serde(rename = "remove")]
     Remove { substring: String },
 }
+
+impl Act for Action {
+    fn apply_action(self: Self, input: String) -> String {
+        return match self {
+            Action::Replace { from, to } => input.replace(&from, &to),
+            Action::Prefix { prefix } => format!("{}{}", prefix, input),
+            Action::Suffix { suffix } => format!("{}{}", input, suffix),
+            Action::Remove { substring } => input.replace(&substring, ""),
+        };
+    }
+}

src/main.rs

@@ -1,9 +1,10 @@
 mod config;
 
 use anyhow::{anyhow, Result};
+use clipboard::{ClipboardContext, ClipboardProvider};
 use dirs::config_dir;
 
-use crate::config::Replacements;
+use crate::config::{Act, Match, Replacements};
 
 fn main() -> Result<()> {
     let mut config_path = config_dir().ok_or(anyhow!("Failed to get config dir"))?;
@@ -16,5 +17,16 @@ fn main() -> Result<()> {
     } else {
         Replacements::default()
     };
-    Ok(())
+    let mut clipboard: ClipboardContext = ClipboardProvider::new().expect("Failed to get clipboard");
+    loop {
+        let contents = clipboard.get_contents().expect("Failed to read clipboard");
+        if let Some(subst) = config
+            .substitutors
+            .iter()
+            .find(|subst| subst.matcher.clone().check_match(&contents))
+        {
+            let result = subst.action.clone().apply_action(contents);
+            let _ = clipboard.set_contents(result);
+        };
+    }
 }