Sort case insensitive, date by newest first (#3560)

* Case insensitive search
* Fix not adding extra sort when no sort specified.
* Using newer version of fvbommel/sortorder package

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/chromedp/chromedp v0.7.3
 	github.com/corona10/goimagehash v1.0.3
 	github.com/disintegration/imaging v1.6.0
-	github.com/fvbommel/sortorder v1.0.2
+	github.com/fvbommel/sortorder v1.1.0
 	github.com/go-chi/chi v4.0.2+incompatible
 	github.com/golang-jwt/jwt/v4 v4.0.0
 	github.com/golang-migrate/migrate/v4 v4.15.0-beta.1

go.sum

@@ -233,8 +233,8 @@ github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMo
 github.com/fsnotify/fsnotify v1.5.1 h1:mZcQUHVQUQWoPXXtuf9yuEXKudkV2sx1E06UadKWpgI=
 github.com/fsnotify/fsnotify v1.5.1/go.mod h1:T3375wBYaZdLLcVNkcVbzGHY7f1l/uK5T5Ai1i3InKU=
 github.com/fsouza/fake-gcs-server v1.17.0/go.mod h1:D1rTE4YCyHFNa99oyJJ5HyclvN/0uQR+pM/VdlL83bw=
-github.com/fvbommel/sortorder v1.0.2 h1:mV4o8B2hKboCdkJm+a7uX/SIpZob4JzUpc5GGnM45eo=
+github.com/fvbommel/sortorder v1.1.0 h1:fUmoe+HLsBTctBDoaBwpQo5N+nrCp8g/BjKb/6ZQmYw=
-github.com/fvbommel/sortorder v1.0.2/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0=
+github.com/fvbommel/sortorder v1.1.0/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/glycerine/go-unsnap-stream v0.0.0-20180323001048-9f0cb55181dd/go.mod h1:/20jfyN9Y5QPEAprSgKAUr+glWDY39ZiUEAYOEv5dsE=
 github.com/glycerine/goconvey v0.0.0-20180728074245-46e3a41ad493/go.mod h1:Ogl1Tioa0aV7gstGFO7KhffUsb9M4ydbEbbxpcEDc24=

pkg/sqlite/driver.go

@@ -5,7 +5,7 @@ import (
 	"database/sql/driver"
 	"fmt"
 
-	"github.com/fvbommel/sortorder"
+	"github.com/fvbommel/sortorder/casefolded"
 	sqlite3 "github.com/mattn/go-sqlite3"
 )
 
@@ -37,9 +37,9 @@ func (d *CustomSQLiteDriver) Open(dsn string) (driver.Conn, error) {
 				}
 			}
 
-			// COLLATE NATURAL_CS - Case sensitive natural sort
+			// COLLATE NATURAL_CI - Case insensitive natural sort
-			err := conn.RegisterCollation("NATURAL_CS", func(s string, s2 string) int {
+			err := conn.RegisterCollation("NATURAL_CI", func(s string, s2 string) int {
-				if sortorder.NaturalLess(s, s2) {
+				if casefolded.NaturalLess(s, s2) {
 					return -1
 				} else {
 					return 1

pkg/sqlite/gallery.go

@@ -1128,7 +1128,7 @@ func (qb *GalleryStore) setGallerySort(query *queryBuilder, findFilter *models.F
 		// special handling for path
 		addFileTable()
 		addFolderTable()
-		query.sortAndPagination += fmt.Sprintf(" ORDER BY folders.path %s, file_folder.path %[1]s, files.basename %[1]s", direction)
+		query.sortAndPagination += fmt.Sprintf(" ORDER BY COALESCE(folders.path, '') || COALESCE(file_folder.path, '') || COALESCE(files.basename, '') COLLATE NATURAL_CI %s", direction)
 	case "file_mod_time":
 		sort = "mod_time"
 		addFileTable()
@@ -1136,10 +1136,13 @@ func (qb *GalleryStore) setGallerySort(query *queryBuilder, findFilter *models.F
 	case "title":
 		addFileTable()
 		addFolderTable()
-		query.sortAndPagination += " ORDER BY COALESCE(galleries.title, files.basename, basename(COALESCE(folders.path, ''))) COLLATE NATURAL_CS " + direction + ", file_folder.path " + direction
+		query.sortAndPagination += " ORDER BY COALESCE(galleries.title, files.basename, basename(COALESCE(folders.path, ''))) COLLATE NATURAL_CI " + direction + ", file_folder.path COLLATE NATURAL_CI " + direction
 	default:
 		query.sortAndPagination += getSort(sort, direction, "galleries")
 	}
+
+	// Whatever the sorting, always use title/id as a final sort
+	query.sortAndPagination += ", COALESCE(galleries.title, galleries.id) COLLATE NATURAL_CI ASC"
 }
 
 func (qb *GalleryStore) filesRepository() *filesRepository {

pkg/sqlite/image.go

@@ -1026,7 +1026,7 @@ func (qb *ImageStore) setImageSortAndPagination(q *queryBuilder, findFilter *mod
 		case "path":
 			addFilesJoin()
 			addFolderJoin()
-			sortClause = " ORDER BY folders.path " + direction + ", files.basename " + direction
+			sortClause = " ORDER BY COALESCE(folders.path, '') || COALESCE(files.basename, '') COLLATE NATURAL_CI " + direction
 		case "file_count":
 			sortClause = getCountSort(imageTable, imagesFilesTable, imageIDColumn, direction)
 		case "tag_count":
@@ -1039,10 +1039,13 @@ func (qb *ImageStore) setImageSortAndPagination(q *queryBuilder, findFilter *mod
 		case "title":
 			addFilesJoin()
 			addFolderJoin()
-			sortClause = " ORDER BY COALESCE(images.title, files.basename) COLLATE NATURAL_CS " + direction + ", folders.path " + direction
+			sortClause = " ORDER BY COALESCE(images.title, files.basename) COLLATE NATURAL_CI " + direction + ", folders.path COLLATE NATURAL_CI " + direction
 		default:
 			sortClause = getSort(sort, direction, "images")
 		}
+
+		// Whatever the sorting, always use title/id as a final sort
+		sortClause += ", COALESCE(images.title, images.id) COLLATE NATURAL_CI ASC"
 	}
 
 	q.sortAndPagination = sortClause + getPagination(findFilter)

pkg/sqlite/movies.go

@@ -310,14 +310,17 @@ func (qb *movieQueryBuilder) getMovieSort(findFilter *models.FindFilterType) str
 		direction = findFilter.GetDirection()
 	}
 
+	sortQuery := ""
 	switch sort {
-	case "name": // #943 - override name sorting to use natural sort
-		return " ORDER BY " + getColumn("movies", sort) + " COLLATE NATURAL_CS " + direction
 	case "scenes_count": // generic getSort won't work for this
-		return getCountSort(movieTable, moviesScenesTable, movieIDColumn, direction)
+		sortQuery += getCountSort(movieTable, moviesScenesTable, movieIDColumn, direction)
 	default:
-		return getSort(sort, direction, "movies")
+		sortQuery += getSort(sort, direction, "movies")
 	}
+
+	// Whatever the sorting, always use name/id as a final sort
+	sortQuery += ", COALESCE(movies.name, movies.id) COLLATE NATURAL_CI ASC"
+	return sortQuery
 }
 
 func (qb *movieQueryBuilder) queryMovie(ctx context.Context, query string, args []interface{}) (*models.Movie, error) {

pkg/sqlite/performer.go

@@ -893,20 +893,23 @@ func (qb *PerformerStore) getPerformerSort(findFilter *models.FindFilterType) st
 		direction = findFilter.GetDirection()
 	}
 
-	if sort == "tag_count" {
+	sortQuery := ""
-		return getCountSort(performerTable, performersTagsTable, performerIDColumn, direction)
+	switch sort {
-	}
+	case "tag_count":
-	if sort == "scenes_count" {
+		sortQuery += getCountSort(performerTable, performersTagsTable, performerIDColumn, direction)
-		return getCountSort(performerTable, performersScenesTable, performerIDColumn, direction)
+	case "scenes_count":
-	}
+		sortQuery += getCountSort(performerTable, performersScenesTable, performerIDColumn, direction)
-	if sort == "images_count" {
+	case "images_count":
-		return getCountSort(performerTable, performersImagesTable, performerIDColumn, direction)
+		sortQuery += getCountSort(performerTable, performersImagesTable, performerIDColumn, direction)
-	}
+	case "galleries_count":
-	if sort == "galleries_count" {
+		sortQuery += getCountSort(performerTable, performersGalleriesTable, performerIDColumn, direction)
-		return getCountSort(performerTable, performersGalleriesTable, performerIDColumn, direction)
+	default:
+		sortQuery += getSort(sort, direction, "performers")
 	}
 
-	return getSort(sort, direction, "performers")
+	// Whatever the sorting, always use name/id as a final sort
+	sortQuery += ", COALESCE(performers.name, performers.id) COLLATE NATURAL_CI ASC"
+	return sortQuery
 }
 
 func (qb *PerformerStore) tagsRepository() *joinRepository {

pkg/sqlite/scene.go

@@ -1435,7 +1435,7 @@ func (qb *SceneStore) setSceneSort(query *queryBuilder, findFilter *models.FindF
 		// special handling for path
 		addFileTable()
 		addFolderTable()
-		query.sortAndPagination += fmt.Sprintf(" ORDER BY folders.path %s, files.basename %[1]s", direction)
+		query.sortAndPagination += fmt.Sprintf(" ORDER BY COALESCE(folders.path, '') || COALESCE(files.basename, '') COLLATE NATURAL_CI %s", direction)
 	case "perceptual_similarity":
 		// special handling for phash
 		addFileTable()
@@ -1472,13 +1472,16 @@ func (qb *SceneStore) setSceneSort(query *queryBuilder, findFilter *models.FindF
 	case "title":
 		addFileTable()
 		addFolderTable()
-		query.sortAndPagination += " ORDER BY COALESCE(scenes.title, files.basename) COLLATE NATURAL_CS " + direction + ", folders.path " + direction
+		query.sortAndPagination += " ORDER BY COALESCE(scenes.title, files.basename) COLLATE NATURAL_CI " + direction + ", folders.path COLLATE NATURAL_CI " + direction
 	case "play_count":
 		// handle here since getSort has special handling for _count suffix
 		query.sortAndPagination += " ORDER BY scenes.play_count " + direction
 	default:
 		query.sortAndPagination += getSort(sort, direction, "scenes")
 	}
+
+	// Whatever the sorting, always use title/id as a final sort
+	query.sortAndPagination += ", COALESCE(scenes.title, scenes.id) COLLATE NATURAL_CI ASC"
 }
 
 func (qb *SceneStore) getPlayCount(ctx context.Context, id int) (int, error) {

pkg/sqlite/sql.go

@@ -82,10 +82,10 @@ func getSort(sort string, direction string, tableName string) string {
 			colName = sort
 		}
 		if strings.Compare(sort, "name") == 0 {
-			return " ORDER BY " + colName + " COLLATE NOCASE " + direction
+			return " ORDER BY " + colName + " COLLATE NATURAL_CI " + direction
 		}
 		if strings.Compare(sort, "title") == 0 {
-			return " ORDER BY " + colName + " COLLATE NATURAL_CS " + direction
+			return " ORDER BY " + colName + " COLLATE NATURAL_CI " + direction
 		}
 
 		return " ORDER BY " + colName + " " + direction

pkg/sqlite/studio.go

@@ -414,16 +414,21 @@ func (qb *studioQueryBuilder) getStudioSort(findFilter *models.FindFilterType) s
 		direction = findFilter.GetDirection()
 	}
 
+	sortQuery := ""
 	switch sort {
 	case "scenes_count":
-		return getCountSort(studioTable, sceneTable, studioIDColumn, direction)
+		sortQuery += getCountSort(studioTable, sceneTable, studioIDColumn, direction)
 	case "images_count":
-		return getCountSort(studioTable, imageTable, studioIDColumn, direction)
+		sortQuery += getCountSort(studioTable, imageTable, studioIDColumn, direction)
 	case "galleries_count":
-		return getCountSort(studioTable, galleryTable, studioIDColumn, direction)
+		sortQuery += getCountSort(studioTable, galleryTable, studioIDColumn, direction)
 	default:
-		return getSort(sort, direction, "studios")
+		sortQuery += getSort(sort, direction, "studios")
 	}
+
+	// Whatever the sorting, always use name/id as a final sort
+	sortQuery += ", COALESCE(studios.name, studios.id) COLLATE NATURAL_CI ASC"
+	return sortQuery
 }
 
 func (qb *studioQueryBuilder) queryStudio(ctx context.Context, query string, args []interface{}) (*models.Studio, error) {

pkg/sqlite/tag.go

@@ -609,22 +609,25 @@ func (qb *tagQueryBuilder) getTagSort(query *queryBuilder, findFilter *models.Fi
 		direction = findFilter.GetDirection()
 	}
 
-	if findFilter.Sort != nil {
+	sortQuery := ""
-		switch *findFilter.Sort {
+	switch sort {
 	case "scenes_count":
-			return getCountSort(tagTable, scenesTagsTable, tagIDColumn, direction)
+		sortQuery += getCountSort(tagTable, scenesTagsTable, tagIDColumn, direction)
 	case "scene_markers_count":
-			return fmt.Sprintf(" ORDER BY (SELECT COUNT(*) FROM scene_markers_tags WHERE tags.id = scene_markers_tags.tag_id)+(SELECT COUNT(*) FROM scene_markers WHERE tags.id = scene_markers.primary_tag_id) %s", getSortDirection(direction))
+		sortQuery += fmt.Sprintf(" ORDER BY (SELECT COUNT(*) FROM scene_markers_tags WHERE tags.id = scene_markers_tags.tag_id)+(SELECT COUNT(*) FROM scene_markers WHERE tags.id = scene_markers.primary_tag_id) %s", getSortDirection(direction))
 	case "images_count":
-			return getCountSort(tagTable, imagesTagsTable, tagIDColumn, direction)
+		sortQuery += getCountSort(tagTable, imagesTagsTable, tagIDColumn, direction)
 	case "galleries_count":
-			return getCountSort(tagTable, galleriesTagsTable, tagIDColumn, direction)
+		sortQuery += getCountSort(tagTable, galleriesTagsTable, tagIDColumn, direction)
 	case "performers_count":
-			return getCountSort(tagTable, performersTagsTable, tagIDColumn, direction)
+		sortQuery += getCountSort(tagTable, performersTagsTable, tagIDColumn, direction)
-		}
+	default:
+		sortQuery += getSort(sort, direction, "tags")
 	}
 
-	return getSort(sort, direction, "tags")
+	// Whatever the sorting, always use name/id as a final sort
+	sortQuery += ", COALESCE(tags.name, tags.id) COLLATE NATURAL_CI ASC"
+	return sortQuery
 }
 
 func (qb *tagQueryBuilder) queryTag(ctx context.Context, query string, args []interface{}) (*models.Tag, error) {

ui/v2.5/src/models/list-filter/filter.ts

@@ -44,7 +44,7 @@ export class ListFilterModel {
   public searchTerm: string = "";
   public currentPage = DEFAULT_PARAMS.currentPage;
   public itemsPerPage = DEFAULT_PARAMS.itemsPerPage;
-  public sortDirection: SortDirectionEnum = SortDirectionEnum.Asc;
+  public sortDirection: SortDirectionEnum = DEFAULT_PARAMS.sortDirection;
   public sortBy?: string;
   public displayMode: DisplayMode = DEFAULT_PARAMS.displayMode;
   public zoomIndex: number = 1;
@@ -62,6 +62,9 @@ export class ListFilterModel {
     this.mode = mode;
     this.config = config;
     this.sortBy = defaultSort;
+    if (this.sortBy === "date") {
+      this.sortDirection = SortDirectionEnum.Desc;
+    }
     if (defaultDisplayMode !== undefined) {
       this.displayMode = defaultDisplayMode;
     }
@@ -95,12 +98,19 @@ export class ListFilterModel {
         this.randomSeed = Number.parseInt(match[1], 10);
       }
     }
-    // #3193 - sortdir undefined means asc
+    if (params.sortdir !== undefined) {
       this.sortDirection =
         params.sortdir === "desc"
           ? SortDirectionEnum.Desc
           : SortDirectionEnum.Asc;
-
+    } else {
+      // #3193 - sortdir undefined means asc
+      // #3559 - unless sortby is date, then desc
+      this.sortDirection =
+        params.sortby === "date"
+          ? SortDirectionEnum.Desc
+          : SortDirectionEnum.Asc;
+    }
     if (params.disp !== undefined) {
       this.displayMode = params.disp;
     }
@@ -294,7 +304,13 @@ export class ListFilterModel {
           : undefined,
       sortby: this.getSortBy(),
       sortdir:
-        this.sortDirection === SortDirectionEnum.Desc ? "desc" : undefined,
+        this.sortBy === "date"
+          ? this.sortDirection === SortDirectionEnum.Asc
+            ? "asc"
+            : undefined
+          : this.sortDirection === SortDirectionEnum.Desc
+          ? "desc"
+          : undefined,
       disp:
         this.displayMode !== DEFAULT_PARAMS.displayMode
           ? String(this.displayMode)
@@ -321,7 +337,13 @@ export class ListFilterModel {
       perPage: this.itemsPerPage,
       sortby: this.getSortBy(),
       sortdir:
-        this.sortDirection === SortDirectionEnum.Desc ? "desc" : undefined,
+        this.sortBy === "date"
+          ? this.sortDirection === SortDirectionEnum.Asc
+            ? "asc"
+            : undefined
+          : this.sortDirection === SortDirectionEnum.Desc
+          ? "desc"
+          : undefined,
       disp: this.displayMode,
       q: this.searchTerm || undefined,
       z: this.zoomIndex,

vendor/github.com/fvbommel/sortorder/.gitignore

@@ -1,19 +0,0 @@
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
-*.o
-*.a
-*.so
-# Folders
-_obj
-_test
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-_testmain.go
-*.exe
-*.test
-*.prof

vendor/github.com/fvbommel/sortorder/README.md

@@ -1,5 +0,0 @@
-# sortorder [![PkgGoDev](https://pkg.go.dev/badge/github.com/fvbommel/sortorder)](https://pkg.go.dev/github.com/fvbommel/sortorder)
-
-    import "github.com/fvbommel/sortorder"
-
-Sort orders and comparison functions.

vendor/github.com/fvbommel/sortorder/casefolded/README.md

@@ -0,0 +1,12 @@
+# casefolded [![PkgGoDev](https://pkg.go.dev/badge/github.com/fvbommel/sortorder/casefolded)](https://pkg.go.dev/github.com/fvbommel/sortorder/casefolded)
+
+    import "github.com/fvbommel/sortorder/casefolded"
+
+Case-folded sort orders and comparison functions.
+
+These sort characters as the lowest unicode value that is equivalent to that character, ignoring case.
+
+Not all Unicode special cases are supported.
+
+This is a separate sub-package because this needs to pull in the Unicode tables in the standard library,
+which can add significantly to the size of binaries.

vendor/github.com/fvbommel/sortorder/casefolded/natsort.go

@@ -0,0 +1,194 @@
+package casefolded
+
+import (
+	"unicode"
+	"unicode/utf8"
+)
+
+// Natural implements sort.Interface to sort strings in natural order. This
+// means that e.g. "abc2" < "abc12".
+//
+// This is the simple case-folded version,
+// which means that letters are considered equal if strings.SimpleFold says they are.
+// For example, "abc2" < "ABC12" < "abc100" and 'k' == '\u212a' (the Kelvin symbol).
+//
+// Non-digit sequences and numbers are compared separately.
+// The former are compared rune-by-rune using the lowest equivalent runes,
+// while digits are compared numerically
+// (except that the number of leading zeros is used as a tie-breaker, so e.g. "2" < "02")
+//
+// Limitations:
+//   - only ASCII digits (0-9) are considered.
+//   - comparisons are done on a rune-by-rune basis,
+//     so some special case equivalences like 'ß' == 'SS" are not supported.
+//   - Special cases like Turkish 'i' == 'İ' (and not regular dotless 'I')
+//     are not supported either.
+type Natural []string
+
+func (n Natural) Len() int           { return len(n) }
+func (n Natural) Swap(i, j int)      { n[i], n[j] = n[j], n[i] }
+func (n Natural) Less(i, j int) bool { return NaturalLess(n[i], n[j]) }
+
+func isDigit(b rune) bool { return '0' <= b && b <= '9' }
+
+// caseFold returns the lowest-numbered rune equivalent to the parameter.
+func caseFold(r rune) rune {
+	// Iterate until SimpleFold returns a lower value.
+	// This will be the lowest-numbered equivalent rune.
+	var prev rune = -1
+	for r > prev {
+		prev, r = r, unicode.SimpleFold(r)
+	}
+	return r
+}
+
+// NaturalLess compares two strings using natural ordering. This means that e.g.
+// "abc2" < "abc12".
+//
+// This is the simple case-folded version,
+// which means that letters are considered equal if strings.SimpleFold says they are.
+// For example, "abc2" < "ABC12" < "abc100" and 'k' == '\u212a' (the Kelvin symbol).
+//
+// Non-digit sequences and numbers are compared separately.
+// The former are compared rune-by-rune using the lowest equivalent runes,
+// while digits are compared numerically
+// (except that the number of leading zeros is used as a tie-breaker, so e.g. "2" < "02")
+//
+// Limitations:
+//   - only ASCII digits (0-9) are considered.
+//   - comparisons are done on a rune-by-rune basis,
+//     so some special case equivalences like 'ß' == 'SS" are not supported.
+//   - Special cases like Turkish 'i' == 'İ' (and not regular dotless 'I')
+//     are not supported either.
+func NaturalLess(str1, str2 string) bool {
+	// ASCII fast path.
+	idx1, idx2 := 0, 0
+	for idx1 < len(str1) && idx2 < len(str2) {
+		c1, c2 := rune(str1[idx1]), rune(str2[idx2])
+
+		// Bail out to full Unicode support?
+		if c1|c2 >= utf8.RuneSelf {
+			goto hasUnicode
+		}
+
+		dig1, dig2 := isDigit(c1), isDigit(c2)
+		switch {
+		case dig1 != dig2: // Digits before other characters.
+			return dig1 // True if LHS is a digit, false if the RHS is one.
+		case !dig1: // && !dig2, because dig1 == dig2
+			// For ASCII it suffices to normalize letters to upper-case,
+			// because upper-cased ASCII compares lexicographically.
+			// Note: this does not account for regional special cases
+			// like Turkish dotted capital 'İ'.
+
+			// Canonicalize to upper-case.
+			c1 = unicode.ToUpper(c1)
+			c2 = unicode.ToUpper(c2)
+			// Identical upper-cased ASCII runes are equal.
+			if c1 == c2 {
+				idx1++
+				idx2++
+				continue
+			}
+			return c1 < c2
+		default: // Digits
+			// Eat zeros.
+			for ; idx1 < len(str1) && str1[idx1] == '0'; idx1++ {
+			}
+			for ; idx2 < len(str2) && str2[idx2] == '0'; idx2++ {
+			}
+			// Eat all digits.
+			nonZero1, nonZero2 := idx1, idx2
+			for ; idx1 < len(str1) && isDigit(rune(str1[idx1])); idx1++ {
+			}
+			for ; idx2 < len(str2) && isDigit(rune(str2[idx2])); idx2++ {
+			}
+			// If lengths of numbers with non-zero prefix differ, the shorter
+			// one is less.
+			if len1, len2 := idx1-nonZero1, idx2-nonZero2; len1 != len2 {
+				return len1 < len2
+			}
+			// If they're equally long, string comparison is correct.
+			if nr1, nr2 := str1[nonZero1:idx1], str2[nonZero2:idx2]; nr1 != nr2 {
+				return nr1 < nr2
+			}
+			// Otherwise, the one with less zeros is less.
+			// Because everything up to the number is equal, comparing the index
+			// after the zeros is sufficient.
+			if nonZero1 != nonZero2 {
+				return nonZero1 < nonZero2
+			}
+		}
+		// They're identical so far, so continue comparing.
+	}
+	// So far they are identical. At least one is ended. If the other continues,
+	// it sorts last.
+	return len(str1) < len(str2)
+
+hasUnicode:
+	for idx1 < len(str1) && idx2 < len(str2) {
+		c1, delta1 := utf8.DecodeRuneInString(str1[idx1:])
+		c2, delta2 := utf8.DecodeRuneInString(str2[idx2:])
+
+		dig1, dig2 := isDigit(c1), isDigit(c2)
+		switch {
+		case dig1 != dig2: // Digits before other characters.
+			return dig1 // True if LHS is a digit, false if the RHS is one.
+		case !dig1: // && !dig2, because dig1 == dig2
+			idx1 += delta1
+			idx2 += delta2
+			// Fast path: identical runes are equal.
+			if c1 == c2 {
+				continue
+			}
+			// ASCII fast path: ASCII characters compare by their upper-case equivalent (if any)
+			// because 'A' < 'a', so upper-case them.
+			if c1 <= unicode.MaxASCII && c2 <= unicode.MaxASCII {
+				c1 = unicode.ToUpper(c1)
+				c2 = unicode.ToUpper(c2)
+				if c1 != c2 {
+					return c1 < c2
+				}
+				continue
+			}
+			// Compare lowest equivalent characters.
+			c1 = caseFold(c1)
+			c2 = caseFold(c2)
+			if c1 == c2 {
+				continue
+			}
+			return c1 < c2
+		default: // Digits
+			// Eat zeros.
+			for ; idx1 < len(str1) && str1[idx1] == '0'; idx1++ {
+			}
+			for ; idx2 < len(str2) && str2[idx2] == '0'; idx2++ {
+			}
+			// Eat all digits.
+			nonZero1, nonZero2 := idx1, idx2
+			for ; idx1 < len(str1) && isDigit(rune(str1[idx1])); idx1++ {
+			}
+			for ; idx2 < len(str2) && isDigit(rune(str2[idx2])); idx2++ {
+			}
+			// If lengths of numbers with non-zero prefix differ, the shorter
+			// one is less.
+			if len1, len2 := idx1-nonZero1, idx2-nonZero2; len1 != len2 {
+				return len1 < len2
+			}
+			// If they're equally long, string comparison is correct.
+			if nr1, nr2 := str1[nonZero1:idx1], str2[nonZero2:idx2]; nr1 != nr2 {
+				return nr1 < nr2
+			}
+			// Otherwise, the one with less zeros is less.
+			// Because everything up to the number is equal, comparing the index
+			// after the zeros is sufficient.
+			if nonZero1 != nonZero2 {
+				return nonZero1 < nonZero2
+			}
+		}
+		// They're identical so far, so continue comparing.
+	}
+	// So far they are identical. At least one is ended. If the other continues,
+	// it sorts last.
+	return len(str1[idx1:]) < len(str2[idx2:])
+}

vendor/github.com/fvbommel/sortorder/doc.go

@@ -1,5 +0,0 @@
-// Package sortorder implements sort orders and comparison functions.
-//
-// Currently, it only implements so-called "natural order", where integers
-// embedded in strings are compared by value.
-package sortorder // import "github.com/fvbommel/sortorder"

vendor/github.com/fvbommel/sortorder/natsort.go

@@ -1,76 +0,0 @@
-package sortorder
-
-// Natural implements sort.Interface to sort strings in natural order. This
-// means that e.g. "abc2" < "abc12".
-//
-// Non-digit sequences and numbers are compared separately. The former are
-// compared bytewise, while the latter are compared numerically (except that
-// the number of leading zeros is used as a tie-breaker, so e.g. "2" < "02")
-//
-// Limitation: only ASCII digits (0-9) are considered.
-type Natural []string
-
-func (n Natural) Len() int           { return len(n) }
-func (n Natural) Swap(i, j int)      { n[i], n[j] = n[j], n[i] }
-func (n Natural) Less(i, j int) bool { return NaturalLess(n[i], n[j]) }
-
-func isdigit(b byte) bool { return '0' <= b && b <= '9' }
-
-// NaturalLess compares two strings using natural ordering. This means that e.g.
-// "abc2" < "abc12".
-//
-// Non-digit sequences and numbers are compared separately. The former are
-// compared bytewise, while the latter are compared numerically (except that
-// the number of leading zeros is used as a tie-breaker, so e.g. "2" < "02")
-//
-// Limitation: only ASCII digits (0-9) are considered.
-func NaturalLess(str1, str2 string) bool {
-	idx1, idx2 := 0, 0
-	for idx1 < len(str1) && idx2 < len(str2) {
-		c1, c2 := str1[idx1], str2[idx2]
-		dig1, dig2 := isdigit(c1), isdigit(c2)
-		switch {
-		case dig1 != dig2: // Digits before other characters.
-			return dig1 // True if LHS is a digit, false if the RHS is one.
-		case !dig1: // && !dig2, because dig1 == dig2
-			// UTF-8 compares bytewise-lexicographically, no need to decode
-			// codepoints.
-			if c1 != c2 {
-				return c1 < c2
-			}
-			idx1++
-			idx2++
-		default: // Digits
-			// Eat zeros.
-			for ; idx1 < len(str1) && str1[idx1] == '0'; idx1++ {
-			}
-			for ; idx2 < len(str2) && str2[idx2] == '0'; idx2++ {
-			}
-			// Eat all digits.
-			nonZero1, nonZero2 := idx1, idx2
-			for ; idx1 < len(str1) && isdigit(str1[idx1]); idx1++ {
-			}
-			for ; idx2 < len(str2) && isdigit(str2[idx2]); idx2++ {
-			}
-			// If lengths of numbers with non-zero prefix differ, the shorter
-			// one is less.
-			if len1, len2 := idx1-nonZero1, idx2-nonZero2; len1 != len2 {
-				return len1 < len2
-			}
-			// If they're equal, string comparison is correct.
-			if nr1, nr2 := str1[nonZero1:idx1], str2[nonZero2:idx2]; nr1 != nr2 {
-				return nr1 < nr2
-			}
-			// Otherwise, the one with less zeros is less.
-			// Because everything up to the number is equal, comparing the index
-			// after the zeros is sufficient.
-			if nonZero1 != nonZero2 {
-				return nonZero1 < nonZero2
-			}
-		}
-		// They're identical so far, so continue comparing.
-	}
-	// So far they are identical. At least one is ended. If the other continues,
-	// it sorts last.
-	return len(str1) < len(str2)
-}

vendor/modules.txt

@@ -143,9 +143,9 @@ github.com/doug-martin/goqu/v9/sqlgen
 # github.com/fsnotify/fsnotify v1.5.1
 ## explicit; go 1.13
 github.com/fsnotify/fsnotify
-# github.com/fvbommel/sortorder v1.0.2
+# github.com/fvbommel/sortorder v1.1.0
 ## explicit; go 1.13
-github.com/fvbommel/sortorder
+github.com/fvbommel/sortorder/casefolded
 # github.com/go-chi/chi v4.0.2+incompatible
 ## explicit
 github.com/go-chi/chi