Drop 0.4 and update a few deprecated syntax (#82)

Drop 0.4 and update deprecated syntax

.travis.yml

@@ -3,7 +3,6 @@ os:
   - osx
   - linux
 julia:
-  - 0.4
   - 0.5
   - 0.6
   - nightly

REQUIRE

@@ -1,2 +1,2 @@
-julia 0.4
-Compat 0.9.5
+julia 0.5
+Compat 0.27.0

appveyor.yml

@@ -1,7 +1,5 @@
 environment:
   matrix:
-  - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x86/0.4/julia-0.4-latest-win32.exe"
-  - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x64/0.4/julia-0.4-latest-win64.exe"
   - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x86/0.5/julia-0.5-latest-win32.exe"
   - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x64/0.5/julia-0.5-latest-win64.exe"
   - JULIA_URL: "https://julialang-s3.julialang.org/bin/winnt/x86/0.6/julia-0.6-latest-win32.exe"

src/LibExpat.jl

@@ -3,13 +3,12 @@ __precompile__()
 module LibExpat
 
 using Compat
-using Compat: String, unsafe_string
 
 import Base: getindex, show, parse
 
-if is_windows() 
+if Compat.Sys.iswindows() 
     const libexpat = "libexpat-1"
-elseif is_unix() 
+elseif Compat.Sys.isunix() 
     const libexpat = "libexpat"
 end
 

src/xpath.jl

@@ -778,7 +778,7 @@ xpath_boolean(a::AbstractString) = !isempty(a)
 xpath_boolean(a::Vector) = !isempty(a)
 xpath_boolean(a::ETree) = true
 
-xpath_number(a::Bool) = a?1:0
+xpath_number(a::Bool) = a ? 1 : 0
 xpath_number(a::Int) = a
 xpath_number(a::Float64) = a
 xpath_number(a::AbstractString) = try parse(Float64,a) catch ex NaN end
@@ -791,7 +791,7 @@ function xpath_string(a::Float64)
     if a == 0
         return "0"
     elseif isinf(a)
-        return (a<0? "-Infinity" : "Infinity")
+        return (a < 0 ?  "-Infinity" : "Infinity")
     elseif isinteger(a)
         return string(Int(a))
     else

test/runtests.jl

@@ -2,7 +2,7 @@ using LibExpat
 using Base.Test
 using Compat
 
-const DATADIR = joinpath(dirname(@__FILE__), "data")
+const DATADIR = joinpath(@__DIR__, "data")
 
 pd = xp_parse(open(readstring, joinpath(DATADIR,"t_s1.txt")))
 @test isa(pd, ETree)