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Merge pull request #6149 from bep/sort-caseinsensitive
Implement lexicographically string sorting
This commit is contained in:
parent
a4f96a9d8c
commit
53077b0da5
14 changed files with 246 additions and 34 deletions
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@ -1,4 +1,4 @@
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// Copyright 2017-present The Hugo Authors. All rights reserved.
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// Copyright 2019 The Hugo Authors. All rights reserved.
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//
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// you may not use this file except in compliance with the License.
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@ -20,7 +20,7 @@ type Eqer interface {
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Eq(other interface{}) bool
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Eq(other interface{}) bool
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}
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}
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// ProbablyEq is an equal check that may return false positives, but never
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// ProbablyEqer is an equal check that may return false positives, but never
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// a false negative.
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// a false negative.
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type ProbablyEqer interface {
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type ProbablyEqer interface {
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ProbablyEq(other interface{}) bool
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ProbablyEq(other interface{}) bool
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113
compare/compare_strings.go
Normal file
113
compare/compare_strings.go
Normal file
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@ -0,0 +1,113 @@
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// Copyright 2019 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package compare
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import (
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"strings"
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"unicode"
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"unicode/utf8"
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)
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// Strings returns an integer comparing two strings lexicographically.
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func Strings(s, t string) int {
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c := compareFold(s, t)
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if c == 0 {
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// "B" and "b" would be the same so we need a tiebreaker.
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return strings.Compare(s, t)
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}
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return c
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}
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// This function is derived from strings.EqualFold in Go's stdlib.
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// https://github.com/golang/go/blob/ad4a58e31501bce5de2aad90a620eaecdc1eecb8/src/strings/strings.go#L893
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func compareFold(s, t string) int {
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for s != "" && t != "" {
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var sr, tr rune
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if s[0] < utf8.RuneSelf {
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sr, s = rune(s[0]), s[1:]
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} else {
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r, size := utf8.DecodeRuneInString(s)
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sr, s = r, s[size:]
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}
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if t[0] < utf8.RuneSelf {
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tr, t = rune(t[0]), t[1:]
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} else {
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r, size := utf8.DecodeRuneInString(t)
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tr, t = r, t[size:]
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}
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if tr == sr {
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continue
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}
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c := 1
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if tr < sr {
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tr, sr = sr, tr
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c = -c
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}
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// ASCII only.
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if tr < utf8.RuneSelf {
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if sr >= 'A' && sr <= 'Z' {
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if tr <= 'Z' {
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// Same case.
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return -c
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}
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diff := tr - (sr + 'a' - 'A')
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if diff == 0 {
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continue
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}
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if diff < 0 {
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return c
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}
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if diff > 0 {
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return -c
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}
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}
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}
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// Unicode.
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r := unicode.SimpleFold(sr)
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for r != sr && r < tr {
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r = unicode.SimpleFold(r)
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}
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if r == tr {
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continue
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}
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return -c
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}
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if s == "" && t == "" {
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return 0
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}
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if s == "" {
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return -1
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}
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return 1
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}
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// LessStrings returns whether s is less than t lexicographically.
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func LessStrings(s, t string) bool {
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return Strings(s, t) < 0
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}
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66
compare/compare_strings_test.go
Normal file
66
compare/compare_strings_test.go
Normal file
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@ -0,0 +1,66 @@
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// Copyright 2019 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package compare
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import (
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"fmt"
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"sort"
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"strings"
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"testing"
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"github.com/stretchr/testify/require"
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)
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func TestCompare(t *testing.T) {
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assert := require.New(t)
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for i, test := range []struct {
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a string
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b string
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}{
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{"a", "a"},
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{"A", "a"},
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{"Ab", "Ac"},
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{"az", "Za"},
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{"C", "D"},
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{"B", "a"},
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{"C", ""},
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{"", ""},
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{"αβδC", "ΑΒΔD"},
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{"αβδC", "ΑΒΔ"},
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{"αβδ", "ΑΒΔD"},
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{"αβδ", "ΑΒΔ"},
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{"β", "δ"},
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{"好", strings.ToLower("好")},
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} {
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expect := strings.Compare(strings.ToLower(test.a), strings.ToLower(test.b))
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got := compareFold(test.a, test.b)
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assert.Equal(expect, got, fmt.Sprintf("test %d: %d", i, expect))
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}
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}
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func TestLexicographicSort(t *testing.T) {
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assert := require.New(t)
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s := []string{"b", "Bz", "ba", "A", "Ba", "ba"}
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sort.Slice(s, func(i, j int) bool {
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return LessStrings(s[i], s[j])
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})
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assert.Equal([]string{"A", "b", "Ba", "ba", "ba", "Bz"}, s)
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}
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@ -213,8 +213,8 @@ menu: "main"
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b.Build(BuildCfg{})
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b.Build(BuildCfg{})
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b.AssertFileContent("public/index.html", "AMP and HTML|/blog/html-amp/|AMP only|/amp/blog/amp/|HTML only|/blog/html/|Home Sweet Home|/|")
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b.AssertFileContent("public/index.html", "AMP and HTML|/blog/html-amp/|AMP only|/amp/blog/amp/|Home Sweet Home|/|HTML only|/blog/html/|")
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b.AssertFileContent("public/amp/index.html", "AMP and HTML|/amp/blog/html-amp/|AMP only|/amp/blog/amp/|HTML only|/blog/html/|Home Sweet Home|/amp/|")
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b.AssertFileContent("public/amp/index.html", "AMP and HTML|/amp/blog/html-amp/|AMP only|/amp/blog/amp/|Home Sweet Home|/amp/|HTML only|/blog/html/|")
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}
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}
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// https://github.com/gohugoio/hugo/issues/5989
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// https://github.com/gohugoio/hugo/issues/5989
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@ -18,6 +18,8 @@ import (
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"path"
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"path"
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"sort"
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"sort"
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"github.com/gohugoio/hugo/compare"
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"github.com/gohugoio/hugo/resources/page"
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"github.com/gohugoio/hugo/resources/page"
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"github.com/gohugoio/hugo/resources/resource"
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"github.com/gohugoio/hugo/resources/resource"
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)
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)
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@ -73,7 +75,7 @@ func (i Taxonomy) TaxonomyArray() OrderedTaxonomy {
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// Alphabetical returns an ordered taxonomy sorted by key name.
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// Alphabetical returns an ordered taxonomy sorted by key name.
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func (i Taxonomy) Alphabetical() OrderedTaxonomy {
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func (i Taxonomy) Alphabetical() OrderedTaxonomy {
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name := func(i1, i2 *OrderedTaxonomyEntry) bool {
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name := func(i1, i2 *OrderedTaxonomyEntry) bool {
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return i1.Name < i2.Name
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return compare.LessStrings(i1.Name, i2.Name)
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}
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}
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ia := i.TaxonomyArray()
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ia := i.TaxonomyArray()
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@ -89,7 +91,7 @@ func (i Taxonomy) ByCount() OrderedTaxonomy {
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li2 := len(i2.WeightedPages)
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li2 := len(i2.WeightedPages)
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if li1 == li2 {
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if li1 == li2 {
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return i1.Name < i2.Name
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return compare.LessStrings(i1.Name, i2.Name)
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}
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}
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return li1 > li2
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return li1 > li2
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}
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}
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@ -15,6 +15,7 @@ package navigation
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import (
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import (
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"github.com/gohugoio/hugo/common/types"
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"github.com/gohugoio/hugo/common/types"
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"github.com/gohugoio/hugo/compare"
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"html/template"
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"html/template"
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"sort"
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"sort"
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@ -159,10 +160,11 @@ func (by menuEntryBy) Sort(menu Menu) {
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var defaultMenuEntrySort = func(m1, m2 *MenuEntry) bool {
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var defaultMenuEntrySort = func(m1, m2 *MenuEntry) bool {
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if m1.Weight == m2.Weight {
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if m1.Weight == m2.Weight {
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if m1.Name == m2.Name {
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c := compare.Strings(m1.Name, m2.Name)
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if c == 0 {
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return m1.Identifier < m2.Identifier
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return m1.Identifier < m2.Identifier
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}
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}
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return m1.Name < m2.Name
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return c < 0
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}
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}
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if m2.Weight == 0 {
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if m2.Weight == 0 {
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@ -205,7 +207,7 @@ func (m Menu) ByWeight() Menu {
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// ByName sorts the menu by the name defined in the menu configuration.
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// ByName sorts the menu by the name defined in the menu configuration.
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func (m Menu) ByName() Menu {
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func (m Menu) ByName() Menu {
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title := func(m1, m2 *MenuEntry) bool {
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title := func(m1, m2 *MenuEntry) bool {
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return m1.Name < m2.Name
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return compare.LessStrings(m1.Name, m2.Name)
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}
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}
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menuEntryBy(title).Sort(m)
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menuEntryBy(title).Sort(m)
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@ -52,7 +52,7 @@ func (s mapKeyByInt) Less(i, j int) bool { return s.mapKeyValues[i].Int() < s.ma
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type mapKeyByStr struct{ mapKeyValues }
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type mapKeyByStr struct{ mapKeyValues }
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func (s mapKeyByStr) Less(i, j int) bool {
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func (s mapKeyByStr) Less(i, j int) bool {
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return s.mapKeyValues[i].String() < s.mapKeyValues[j].String()
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return compare.LessStrings(s.mapKeyValues[i].String(), s.mapKeyValues[j].String())
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}
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}
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func sortKeys(v []reflect.Value, order string) []reflect.Value {
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func sortKeys(v []reflect.Value, order string) []reflect.Value {
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@ -18,6 +18,7 @@ import (
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"github.com/gohugoio/hugo/resources/resource"
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"github.com/gohugoio/hugo/resources/resource"
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"github.com/gohugoio/hugo/compare"
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"github.com/spf13/cast"
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"github.com/spf13/cast"
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)
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)
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@ -50,13 +51,14 @@ func (by pageBy) Sort(pages Pages) {
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var DefaultPageSort = func(p1, p2 Page) bool {
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var DefaultPageSort = func(p1, p2 Page) bool {
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if p1.Weight() == p2.Weight() {
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if p1.Weight() == p2.Weight() {
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if p1.Date().Unix() == p2.Date().Unix() {
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if p1.Date().Unix() == p2.Date().Unix() {
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if p1.LinkTitle() == p2.LinkTitle() {
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c := compare.Strings(p1.LinkTitle(), p2.LinkTitle())
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if c == 0 {
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if p1.File().IsZero() || p2.File().IsZero() {
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if p1.File().IsZero() || p2.File().IsZero() {
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return p1.File().IsZero()
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return p1.File().IsZero()
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}
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}
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return p1.File().Filename() < p2.File().Filename()
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return compare.LessStrings(p1.File().Filename(), p2.File().Filename())
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}
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}
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return (p1.LinkTitle() < p2.LinkTitle())
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return c < 0
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}
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}
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return p1.Date().Unix() > p2.Date().Unix()
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return p1.Date().Unix() > p2.Date().Unix()
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}
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}
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@ -76,12 +78,13 @@ var languagePageSort = func(p1, p2 Page) bool {
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if p1.Language().Weight == p2.Language().Weight {
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if p1.Language().Weight == p2.Language().Weight {
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if p1.Date().Unix() == p2.Date().Unix() {
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if p1.Date().Unix() == p2.Date().Unix() {
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if p1.LinkTitle() == p2.LinkTitle() {
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c := compare.Strings(p1.LinkTitle(), p2.LinkTitle())
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if c == 0 {
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if !p1.File().IsZero() && !p2.File().IsZero() {
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if !p1.File().IsZero() && !p2.File().IsZero() {
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return p1.File().Filename() < p2.File().Filename()
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return compare.LessStrings(p1.File().Filename(), p2.File().Filename())
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}
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}
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}
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}
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return (p1.LinkTitle() < p2.LinkTitle())
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return c < 0
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}
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}
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return p1.Date().Unix() > p2.Date().Unix()
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return p1.Date().Unix() > p2.Date().Unix()
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}
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}
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@ -137,7 +140,7 @@ func (p Pages) ByTitle() Pages {
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const key = "pageSort.ByTitle"
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const key = "pageSort.ByTitle"
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title := func(p1, p2 Page) bool {
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title := func(p1, p2 Page) bool {
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return p1.Title() < p2.Title()
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return compare.LessStrings(p1.Title(), p2.Title())
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}
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}
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pages, _ := spc.get(key, pageBy(title).Sort, p)
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pages, _ := spc.get(key, pageBy(title).Sort, p)
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@ -154,7 +157,7 @@ func (p Pages) ByLinkTitle() Pages {
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const key = "pageSort.ByLinkTitle"
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const key = "pageSort.ByLinkTitle"
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linkTitle := func(p1, p2 Page) bool {
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linkTitle := func(p1, p2 Page) bool {
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return p1.LinkTitle() < p2.LinkTitle()
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return compare.LessStrings(p1.LinkTitle(), p2.LinkTitle())
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}
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}
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pages, _ := spc.get(key, pageBy(linkTitle).Sort, p)
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pages, _ := spc.get(key, pageBy(linkTitle).Sort, p)
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@ -339,7 +342,8 @@ func (p Pages) ByParam(paramsKey interface{}) Pages {
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s1 := cast.ToString(v1)
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s1 := cast.ToString(v1)
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s2 := cast.ToString(v2)
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s2 := cast.ToString(v2)
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return s1 < s2
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return compare.LessStrings(s1, s2)
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}
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}
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pages, _ := spc.get(key, pageBy(paramsKeyComparator).Sort, p)
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pages, _ := spc.get(key, pageBy(paramsKeyComparator).Sort, p)
|
||||||
|
|
|
@ -23,7 +23,7 @@ import (
|
||||||
"github.com/spf13/cast"
|
"github.com/spf13/cast"
|
||||||
)
|
)
|
||||||
|
|
||||||
var comp = compare.New()
|
var sortComp = compare.New(true)
|
||||||
|
|
||||||
// Sort returns a sorted sequence.
|
// Sort returns a sorted sequence.
|
||||||
func (ns *Namespace) Sort(seq interface{}, args ...interface{}) (interface{}, error) {
|
func (ns *Namespace) Sort(seq interface{}, args ...interface{}) (interface{}, error) {
|
||||||
|
@ -133,15 +133,15 @@ func (p pairList) Less(i, j int) bool {
|
||||||
if iv.IsValid() {
|
if iv.IsValid() {
|
||||||
if jv.IsValid() {
|
if jv.IsValid() {
|
||||||
// can only call Interface() on valid reflect Values
|
// can only call Interface() on valid reflect Values
|
||||||
return comp.Lt(iv.Interface(), jv.Interface())
|
return sortComp.Lt(iv.Interface(), jv.Interface())
|
||||||
}
|
}
|
||||||
// if j is invalid, test i against i's zero value
|
// if j is invalid, test i against i's zero value
|
||||||
return comp.Lt(iv.Interface(), reflect.Zero(iv.Type()))
|
return sortComp.Lt(iv.Interface(), reflect.Zero(iv.Type()))
|
||||||
}
|
}
|
||||||
|
|
||||||
if jv.IsValid() {
|
if jv.IsValid() {
|
||||||
// if i is invalid, test j against j's zero value
|
// if i is invalid, test j against j's zero value
|
||||||
return comp.Lt(reflect.Zero(jv.Type()), jv.Interface())
|
return sortComp.Lt(reflect.Zero(jv.Type()), jv.Interface())
|
||||||
}
|
}
|
||||||
|
|
||||||
return false
|
return false
|
||||||
|
|
|
@ -45,6 +45,7 @@ func TestSort(t *testing.T) {
|
||||||
}{
|
}{
|
||||||
{[]string{"class1", "class2", "class3"}, nil, "asc", []string{"class1", "class2", "class3"}},
|
{[]string{"class1", "class2", "class3"}, nil, "asc", []string{"class1", "class2", "class3"}},
|
||||||
{[]string{"class3", "class1", "class2"}, nil, "asc", []string{"class1", "class2", "class3"}},
|
{[]string{"class3", "class1", "class2"}, nil, "asc", []string{"class1", "class2", "class3"}},
|
||||||
|
{[]string{"CLASS3", "class1", "class2"}, nil, "asc", []string{"class1", "class2", "CLASS3"}},
|
||||||
// Issue 6023
|
// Issue 6023
|
||||||
{stringsSlice{"class3", "class1", "class2"}, nil, "asc", stringsSlice{"class1", "class2", "class3"}},
|
{stringsSlice{"class3", "class1", "class2"}, nil, "asc", stringsSlice{"class1", "class2", "class3"}},
|
||||||
|
|
||||||
|
|
|
@ -20,18 +20,20 @@ import (
|
||||||
"strconv"
|
"strconv"
|
||||||
"time"
|
"time"
|
||||||
|
|
||||||
"github.com/gohugoio/hugo/common/types"
|
|
||||||
|
|
||||||
"github.com/gohugoio/hugo/compare"
|
"github.com/gohugoio/hugo/compare"
|
||||||
|
|
||||||
|
"github.com/gohugoio/hugo/common/types"
|
||||||
)
|
)
|
||||||
|
|
||||||
// New returns a new instance of the compare-namespaced template functions.
|
// New returns a new instance of the compare-namespaced template functions.
|
||||||
func New() *Namespace {
|
func New(caseInsensitive bool) *Namespace {
|
||||||
return &Namespace{}
|
return &Namespace{caseInsensitive: caseInsensitive}
|
||||||
}
|
}
|
||||||
|
|
||||||
// Namespace provides template functions for the "compare" namespace.
|
// Namespace provides template functions for the "compare" namespace.
|
||||||
type Namespace struct {
|
type Namespace struct {
|
||||||
|
// Enable to do case insensitive string compares.
|
||||||
|
caseInsensitive bool
|
||||||
}
|
}
|
||||||
|
|
||||||
// Default checks whether a given value is set and returns a default value if it
|
// Default checks whether a given value is set and returns a default value if it
|
||||||
|
@ -89,7 +91,10 @@ func (*Namespace) Default(dflt interface{}, given ...interface{}) (interface{},
|
||||||
}
|
}
|
||||||
|
|
||||||
// Eq returns the boolean truth of arg1 == arg2.
|
// Eq returns the boolean truth of arg1 == arg2.
|
||||||
func (*Namespace) Eq(x, y interface{}) bool {
|
func (ns *Namespace) Eq(x, y interface{}) bool {
|
||||||
|
if ns.caseInsensitive {
|
||||||
|
panic("caseInsensitive not implemented for Eq")
|
||||||
|
}
|
||||||
if e, ok := x.(compare.Eqer); ok {
|
if e, ok := x.(compare.Eqer); ok {
|
||||||
return e.Eq(y)
|
return e.Eq(y)
|
||||||
}
|
}
|
||||||
|
@ -157,7 +162,7 @@ func (n *Namespace) Conditional(condition bool, a, b interface{}) interface{} {
|
||||||
return b
|
return b
|
||||||
}
|
}
|
||||||
|
|
||||||
func (*Namespace) compareGet(a interface{}, b interface{}) (float64, float64) {
|
func (ns *Namespace) compareGet(a interface{}, b interface{}) (float64, float64) {
|
||||||
if ac, ok := a.(compare.Comparer); ok {
|
if ac, ok := a.(compare.Comparer); ok {
|
||||||
c := ac.Compare(b)
|
c := ac.Compare(b)
|
||||||
if c < 0 {
|
if c < 0 {
|
||||||
|
@ -228,6 +233,17 @@ func (*Namespace) compareGet(a interface{}, b interface{}) (float64, float64) {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
if ns.caseInsensitive && leftStr != nil && rightStr != nil {
|
||||||
|
c := compare.Strings(*leftStr, *rightStr)
|
||||||
|
if c < 0 {
|
||||||
|
return 0, 1
|
||||||
|
} else if c > 0 {
|
||||||
|
return 1, 0
|
||||||
|
} else {
|
||||||
|
return 0, 0
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
switch {
|
switch {
|
||||||
case leftStr == nil || rightStr == nil:
|
case leftStr == nil || rightStr == nil:
|
||||||
case *leftStr < *rightStr:
|
case *leftStr < *rightStr:
|
||||||
|
|
|
@ -83,7 +83,7 @@ func TestDefaultFunc(t *testing.T) {
|
||||||
|
|
||||||
then := time.Now()
|
then := time.Now()
|
||||||
now := time.Now()
|
now := time.Now()
|
||||||
ns := New()
|
ns := New(false)
|
||||||
|
|
||||||
for i, test := range []struct {
|
for i, test := range []struct {
|
||||||
dflt interface{}
|
dflt interface{}
|
||||||
|
@ -139,7 +139,7 @@ func TestDefaultFunc(t *testing.T) {
|
||||||
func TestCompare(t *testing.T) {
|
func TestCompare(t *testing.T) {
|
||||||
t.Parallel()
|
t.Parallel()
|
||||||
|
|
||||||
n := New()
|
n := New(false)
|
||||||
|
|
||||||
for _, test := range []struct {
|
for _, test := range []struct {
|
||||||
tstCompareType
|
tstCompareType
|
||||||
|
@ -233,6 +233,14 @@ func doTestCompare(t *testing.T, tp tstCompareType, funcUnderTest func(a, b inte
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func TestCase(t *testing.T) {
|
||||||
|
assert := require.New(t)
|
||||||
|
n := New(true)
|
||||||
|
|
||||||
|
assert.True(n.Lt("az", "Za"))
|
||||||
|
assert.True(n.Gt("ab", "Ab"))
|
||||||
|
}
|
||||||
|
|
||||||
func TestTimeUnix(t *testing.T) {
|
func TestTimeUnix(t *testing.T) {
|
||||||
t.Parallel()
|
t.Parallel()
|
||||||
var sec int64 = 1234567890
|
var sec int64 = 1234567890
|
||||||
|
@ -258,7 +266,7 @@ func TestTimeUnix(t *testing.T) {
|
||||||
|
|
||||||
func TestConditional(t *testing.T) {
|
func TestConditional(t *testing.T) {
|
||||||
assert := require.New(t)
|
assert := require.New(t)
|
||||||
n := New()
|
n := New(false)
|
||||||
a, b := "a", "b"
|
a, b := "a", "b"
|
||||||
|
|
||||||
assert.Equal(a, n.Conditional(true, a, b))
|
assert.Equal(a, n.Conditional(true, a, b))
|
||||||
|
|
|
@ -22,7 +22,7 @@ const name = "compare"
|
||||||
|
|
||||||
func init() {
|
func init() {
|
||||||
f := func(d *deps.Deps) *internal.TemplateFuncsNamespace {
|
f := func(d *deps.Deps) *internal.TemplateFuncsNamespace {
|
||||||
ctx := New()
|
ctx := New(false)
|
||||||
|
|
||||||
ns := &internal.TemplateFuncsNamespace{
|
ns := &internal.TemplateFuncsNamespace{
|
||||||
Name: name,
|
Name: name,
|
||||||
|
|
|
@ -23,7 +23,7 @@ import (
|
||||||
)
|
)
|
||||||
|
|
||||||
func TestTruth(t *testing.T) {
|
func TestTruth(t *testing.T) {
|
||||||
n := New()
|
n := New(false)
|
||||||
|
|
||||||
truthv, falsev := reflect.ValueOf(time.Now()), reflect.ValueOf(false)
|
truthv, falsev := reflect.ValueOf(time.Now()), reflect.ValueOf(false)
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue