Removes needless dependency. Better .travis.yml file

Author: sushant94

.travis.yml

@@ -1,6 +1,35 @@
+sudo: false
+dist: trusty
 language: rust
 
+matrix:
+  fast_finish: true
+  allow_failures:
+    - rust: nightly
+
 rust:
   - nightly
   - beta
   - stable
+
+os:
+  - linux
+  - osx
+
+before_script:
+  - |
+    pip install 'travis-cargo<0.2' --user &&
+    export PATH=$HOME/.local/bin:$PATH
+
+script:
+  - |
+    travis-cargo build &&
+    travis-cargo test &&
+    travis-cargo bench
+
+after_success:
+  - travis-cargo --only stable coveralls --no-sudo --verify 
+
+env:
+  global:
+    - TRAVIS_CARGO_NIGHTLY_FEATURE=""

Cargo.toml

@@ -4,5 +4,3 @@ version = "0.1.0"
 authors = ["Sushant <[email protected]>"]
 
 [dependencies]
-num = "*"
-petgraph = "*"

src/lexer.rs

@@ -6,7 +6,6 @@
 // except according to those terms.
 
 use std::fmt::Debug;
-use num::traits::Num;
 use std::collections::VecDeque;
 
 const ESIL_INTERNAL_PREFIX: char = '$';
@@ -402,7 +401,7 @@ impl Tokenize for Tokenizer {
                                 _ => vec![Token::EInvalid],
                             }
                         } else if t.starts_with("0x") {
-                            match Num::from_str_radix(t.trim_left_matches("0x"), 16) {
+                            match u64::from_str_radix(t.trim_left_matches("0x"), 16) {
                                 Ok(v) => vec![Token::EConstant(v)],
                                 Err(_) => vec![Token::EInvalid],
                             }

src/lib.rs

@@ -5,9 +5,6 @@
 // This file may not be copied, modified, or distributed
 // except according to those terms.
 
-extern crate num;
-extern crate petgraph;
-
 pub mod lexer;
 pub mod parser;
 //pub mod memory;

src/parser.rs

@@ -549,10 +549,10 @@ mod test {
     }
 
     #[test]
-    fn parser_skip_false() {
+    fn parser_follow_false() {
     }
 
     #[test]
-    fn parser_folloow_true() {
+    fn parser_follow_true() {
     }
 }