package casefolded

import "github.com/fvbommel/sortorder/casefolded"

Index ¶

• func NaturalLess(str1, str2 string) bool
• type Natural
• func (n Natural) Len() int
• func (n Natural) Less(i, j int) bool
• func (n Natural) Swap(i, j int)

Functions ¶

func NaturalLess ¶

func NaturalLess(str1, str2 string) bool

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.

Types ¶

type Natural ¶

type Natural []string

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.

func (Natural) Len ¶

func (n Natural) Len() int

func (Natural) Less ¶

func (n Natural) Less(i, j int) bool

func (Natural) Swap ¶

func (n Natural) Swap(i, j int)

Source Files ¶

natsort.go