From 901d03b3a8ac0b7d8533fd9a8d43238d665d9cb8 Mon Sep 17 00:00:00 2001
From: Matias Linares <matiaslina@openmailbox.org>
Date: Fri, 27 Nov 2015 03:50:07 -0300
Subject: Little implemented the socket parser.

Just two functions for the parsing of the socket. nothing special.
---
 Cargo.lock           |  6 ++++++
 Cargo.toml           |  1 +
 src/main.rs          |  2 ++
 src/socket/parser.rs | 36 ++++++++++++++++++++++++++++++++++--
 4 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index eabeb47..7b7fe67 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3,6 +3,7 @@ name = "dotwm"
 version = "0.1.0"
 dependencies = [
  "libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "nom 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unix_socket 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "x11 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -22,6 +23,11 @@ name = "libc"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "nom"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "pkg-config"
 version = "0.3.6"
diff --git a/Cargo.toml b/Cargo.toml
index 66e2b19..b479ece 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,7 @@ authors = ["Matias Linares <matiaslina@openmailbox.org>"]
 [dependencies]
 libc = "0.2.*"
 unix_socket = "*"
+nom = "~1.0.0"
 
 [dependencies.x11]
 version = "*"
diff --git a/src/main.rs b/src/main.rs
index 27c1a46..21133ef 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -3,6 +3,8 @@
 extern crate libc;
 extern crate x11;
 extern crate unix_socket;
+#[macro_use]
+extern crate nom;
 
 pub mod safe_x11;
 pub mod command;
diff --git a/src/socket/parser.rs b/src/socket/parser.rs
index 3cfc15d..e8dd9ec 100644
--- a/src/socket/parser.rs
+++ b/src/socket/parser.rs
@@ -11,7 +11,28 @@ use x11::keysym;
 use command::*;
 use dotwm::DotWM;
 
-fn str_to_modifier<'a>(s: &'a str) -> Result<u32, ()> {
+use nom::{IResult,alpha,multispace};
+use nom::IResult::*;
+use std::str;
+
+named!(token<&str>,
+       map_res!(
+           alpha, str::from_utf8));
+
+fn slice2str(input: Vec<&[u8]>) -> Vec<&str> {
+    let res: Vec<&str> = input.iter()
+                              .map(|x| str::from_utf8(x).unwrap())
+                              .collect();
+    res
+}
+
+named!(args<Vec<&str> >,
+       map!(
+           separated_list!(
+               multispace, alpha),
+           slice2str));
+
+fn modifier<'a>(s: &'a str) -> Result<u32, ()> {
     match s {
         "Mod1Mask" => Ok(xlib::Mod4Mask),
         "Mod2Mask" => Ok(xlib::Mod4Mask),
@@ -53,7 +74,7 @@ pub fn parse<'a>(dotwm: &mut DotWM, bindings: &mut BindingHash, input: &'a str)
         Some(cmd) => {
             match cmd {
                 &"add-binding" => {
-                     let modifier = str_to_modifier(args[1]).unwrap();
+                     let modifier = modifier(args[1]).unwrap();
                      let key = str_to_key(args[2]).unwrap();
                      let func = str_to_func(args[3]).unwrap();
                      let arguments = &args[4..];
@@ -68,3 +89,14 @@ pub fn parse<'a>(dotwm: &mut DotWM, bindings: &mut BindingHash, input: &'a str)
     }
     "ok"
 }
+
+#[test]
+fn parse_test() {
+    assert_eq!(token(&b"exec"[..]), IResult::Done(&b""[..], "exec"));
+}
+
+#[test]
+fn parse_args() {
+    assert_eq!(args(&b"hola chau"[..]),
+               IResult::Done(&b""[..], vec!["hola", "chau"]));
+}
-- 
cgit v1.2.3-70-g09d2