Fix str_next and findfirst issues

.drone.yml

@@ -11,30 +11,17 @@ steps:
   image: julia:1.5
   commands:
   - "julia --project=. --check-bounds=yes --color=yes -e 'using InteractiveUtils; versioninfo(verbose=true); using Pkg; Pkg.build(); Pkg.test(coverage=true)'"
----
-kind: pipeline
-name: linux - arm64 - Julia 1.0
-
-platform:
-  os: linux
-  arch: arm64
-
-steps:
-- name: build
-  image: julia:1.0
-  commands:
-  - "julia --project=. --check-bounds=yes --color=yes -e 'using InteractiveUtils; versioninfo(verbose=true); using Pkg; Pkg.build(); Pkg.test(coverage=true)'"
 
 ---
 kind: pipeline
-name: linux - arm - Julia 1.0
+name: linux - arm64 - Julia 1.6
 
 platform:
   os: linux
-  arch: arm
+  arch: arm64
 
 steps:
 - name: build
-  image: julia:1.0
+  image: julia:1.6
   commands:
   - "julia --project=. --check-bounds=yes --color=yes -e 'using InteractiveUtils; versioninfo(verbose=true); using Pkg; Pkg.build(); Pkg.test(coverage=true)'"

.github/workflows/ci.yml

@@ -0,0 +1,43 @@
+name: CI
+on:
+  - push
+  - pull_request
+jobs:
+  test:
+    name: Julia ${{ matrix.version }} - ${{ matrix.os }} - ${{ matrix.arch }} - ${{ github.event_name }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - '1.5'
+          - '1.6'
+          - 'nightly'
+        os:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
+        arch:
+          - x64
+          - x86
+        exclude:
+          - os: macOS-latest
+            arch: x86
+    steps:
+      - uses: actions/checkout@v2
+      - uses: julia-actions/setup-julia@v1
+        with:
+          version: ${{ matrix.version }}
+          arch: ${{ matrix.arch }}
+      - uses: actions/cache@v1
+        env:
+          cache-name: cache-artifacts
+        with:
+          path: ~/.julia/artifacts
+          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ env.cache-name }}-
+            ${{ runner.os }}-test-
+            ${{ runner.os }}-
+      - uses: julia-actions/julia-buildpkg@v1
+      - uses: julia-actions/julia-runtest@v1

Project.toml

@@ -4,7 +4,7 @@ authors  = ["ScottPJones <scottjones@alum.mit.edu>"]
 keywords = ["Strings"]
 license  = "MIT"
 uuid     = "e79e7a6a-7bb1-5a4d-9d64-da657b06f53a"
-version = "1.0.4"
+version = "1.0.5"
 
 [deps]
 Unicode = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"
@@ -24,9 +24,9 @@ Random  = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 test = ["Test", "Random"]
 
 [compat]
-julia = "^1.0.0"
-ModuleInterfaceTools = "^1.0.0"
-MurmurHash3 = "^1.0.3"
-StrAPI = "^1.0.0"
-ChrBase = "^1.0.1"
-CharSetEncodings = "^1.0.0"
+julia = "1"
+ModuleInterfaceTools = "1"
+MurmurHash3 = "^1.2"
+StrAPI = "^1.1"
+ChrBase = "^1.0.3"
+CharSetEncodings = "1"

src/compare.jl

@@ -54,7 +54,7 @@ end
     while pnt < fin
         str_done(b, pos) && return 1
         c1, pnt = _nextcp(C, pnt)
-        ch, pos = str_next(b, pos)
+        ch, pos = iterate(b, pos)
         c2 = ch%UInt32
         c1 == c2 || return ifelse(c1 < c2, -1, 1)
     end
@@ -93,7 +93,7 @@ function _cpeq(a::MaybeSub{T}, b) where {C<:CSE, T<:Str{C}}
     while pnt < fin
         str_done(b, pos) && return false
         c1, pnt = _nextcp(C, pnt)
-        ch, pos = str_next(b, pos)
+        ch, pos = iterate(b, pos)
         c1 == codepoint(ch) || return false
     end
     true

src/search.jl

@@ -130,6 +130,12 @@ Base.findlast(a::Str, b::AbstractString)    = nothing_sentinel(find(Last, a, b))
 Base.findnext(a::Str, b::AbstractString, i) = nothing_sentinel(find(Fwd, a, b, i))
 Base.findprev(a::Str, b::AbstractString, i) = nothing_sentinel(find(Rev, a, b, i))
 
+# Fix ambiguities caused by addition of new findfirst definition to base
+Base.findfirst(a::AbstractChar, b::Str)   = nothing_sentinel(find(First, a, b))
+Base.findlast(a::AbstractChar, b::Str)    = nothing_sentinel(find(Last, a, b))
+Base.findnext(a::AbstractChar, b::Str, i) = nothing_sentinel(find(Fwd, a, b, i))
+Base.findprev(a::AbstractChar, b::Str, i) = nothing_sentinel(find(Rev, a, b, i))
+
 function find(::Type{D}, fun::Function, str::AbstractString, pos::Integer) where {D<:Direction}
     pos < Int(D===Fwd) && (@boundscheck boundserr(str, pos); return 0)
     if pos > (len = ncodeunits(str))
@@ -189,7 +195,7 @@ function find(::Type{D}, needle::AbstractString, str::AbstractString,
     @inbounds is_valid(str, pos) || index_error(str, pos)
     (tlen = ncodeunits(needle)) == 0 && return pos:pos-1
     (cmp = CanContain(str, needle)) === NoCompare() && return _not_found
-    @inbounds ch, nxt = str_next(needle, 1)
+    @inbounds ch, nxt = iterate(needle, 1)
     is_valid(eltype(str), ch) || return _not_found
     # Check if single character
     if nxt > tlen
@@ -205,7 +211,7 @@ function find(::Type{T}, needle::AbstractString, str::AbstractString) where {T<:
     pos = T === First ? 1 : thisind(str, slen)
     (tlen = ncodeunits(needle)) == 0 && return pos:(pos-1)
     (cmp = CanContain(str, needle)) === NoCompare() && return _not_found
-    @inbounds ch, nxt = str_next(needle, 1)
+    @inbounds ch, nxt = iterate(needle, 1)
     is_valid(eltype(str), ch) || return _not_found
     # Check if single character
     if nxt > tlen
@@ -298,8 +304,8 @@ end
 """Compare two strings, starting at nxtstr and nxtsub"""
 @inline function _cmp_str(str, strpos, endpos, sub, subpos, endsub)
     while strpos <= endpos
-        c, strnxt = str_next(str, strpos)
-        d, subpos = str_next(sub, subpos)
+        c, strnxt = iterate(str, strpos)
+        d, subpos = iterate(sub, subpos)
         c == d || break
         subpos > endsub && return strpos
         strpos = strnxt

src/support.jl

@@ -264,7 +264,7 @@ function unsafe_check_string(str::T;
     totalchar = latin1byte = num2byte = num3byte = num4byte = invalids = 0
     pos = 1
     @inbounds while !str_done(str, pos)
-        chr, nxt = str_next(str, pos)
+        chr, nxt = iterate(str, pos)
         ch = chr%UInt32
         totalchar += 1
         if ch > 0x7f
@@ -288,7 +288,7 @@ function unsafe_check_string(str::T;
                     break
                 end
                 # next character *must* be a trailing surrogate character
-                chr, nxt = str_next(str, nxt)
+                chr, nxt = iterate(str, nxt)
                 if !is_surrogate_trail(chr)
                     accept_invalids || strerror(StrErrors.NOT_TRAIL, pos, chr)
                     invalids += 1

src/utf8.jl

@@ -387,9 +387,9 @@ _iterate(::MultiCU, ::Type{T}, str::SubString{<:Str{RawUTF8CSE}}, pos::Int) wher
 end
 
 _next(::MultiCU, ::Type{T}, str::Str{RawUTF8CSE}, pos::Int) where {T} =
-    str_next(str.data, pos)
+    iterate(str.data, pos)
 _next(::MultiCU, ::Type{T}, str::SubString{<:Str{RawUTF8CSE}}, pos::Int) where {T} =
-    str_next(SubString(str.string.data, str.offset + pos, str.offset + ncodeunits(str)), 1)
+    iterate(SubString(str.string.data, str.offset + pos, str.offset + ncodeunits(str)), 1)
 
 ## overload methods for efficiency ##
 

test/basic.jl

@@ -305,8 +305,8 @@ let
 
     @test lastindex(srep) == 7
 
-    @test str_next(srep, 3) == ('β',5)
-    @test str_next(srep, 7) == ('β',9)
+    @test iterate(srep, 3) == ('β',5)
+    @test iterate(srep, 7) == ('β',9)
 
     @test srep[7] == 'β'
     @test_throws StringIndexError srep[8]
@@ -340,8 +340,8 @@ end
     @test_throws MethodError codeunit(tstr, true)
     @test_throws MethodError isvalid(tstr, 1)
     @test_throws MethodError isvalid(tstr, true)
-    @test_throws MethodError str_next(tstr, 1)
-    @test_throws MethodError str_next(tstr, true)
+    @test_throws MethodError iterate(tstr, 1)
+    @test_throws MethodError iterate(tstr, true)
     @test_throws MethodError lastindex(tstr)
 
     gstr = GenericString("12")
@@ -611,7 +611,7 @@ end
     for st in ("Hello", "Σ", "こんにちは", "😊😁")
         local s
         s = ST(st)
-        @test str_next(s, lastindex(s))[2] > sizeof(s)
+        @test iterate(s, lastindex(s))[2] > sizeof(s)
         @test nextind(s, lastindex(s)) > sizeof(s)
     end
 end
@@ -915,7 +915,7 @@ function testbin(::Type{ST}) where {ST}
                  b"\xf8\x9f\x98\x84", b"\xf8\x9f\x98\x84z")),
         s in lst
         st = ST(s)
-        @test str_next(st, 1)[2] == 2
+        @test iterate(st, 1)[2] == 2
         @test nextind(st, 1) == 2
     end
 
@@ -930,7 +930,7 @@ function testbin(::Type{ST}) where {ST}
         (s, r) in lst
         st = ST(s)
         (ST === BinaryStr || ST === Text1Str) && (r = 2)
-        @test str_next(st, 1)[2] == r
+        @test iterate(st, 1)[2] == r
         @test nextind(st, 1) == r
     end
 end