stringsutil

package
v0.41.5 Latest Latest
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 Go to latest Published: Nov 28, 2022 License: MIT Imports: 9 Imported by: 103

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Constants

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const (
	StringToLower     = "StringToLower"
	SpaceToHyphen     = "SpaceToHyphen"
	SpaceToUnderscore = "SpaceToUnderscore"
)
View Source 
const CommonInitialisms = "" /* 160-byte string literal not displayed */

CommonInitialisms is the listed by Go Lint.

Variables

This section is empty.

Functions

func Capitalize 

func Capitalize(s1 string) string

Capitalize returns a string with the first character capitalized and the rest lower cased.

func CommonInitialismsMap 

func CommonInitialismsMap() map[string]bool

CommonInitialismsMap returns map[string]bool of upper case initialisms.

func CondenseSpace 

func CondenseSpace(s string) string

CondenseSpace removes extra spaces.

func CondenseString 

func CondenseString(content string, joinLines bool) string

CondenseString trims whitespace at the ends of the string as well as in between.

func ContainsMore added in v0.34.4 

func ContainsMore(s string, substrs []string, all, lc, trimSpaceSubstr bool) bool

func Dedupe 

func Dedupe(elems []string) []string

Dedupe returns a string slice with duplicate values removed. First observance is kept.

func DigitsOnly 

func DigitsOnly(input string) string

func EmptyError added in v0.36.2 

func EmptyError(s string, err error) string

EmptyError takes a string and error, returning the string value or an empty string if an error is encountered. It is used for simplifying code that returns a value or an error if not present.

func EndsWith 

func EndsWith(s string, substrs ...string) bool

func Equal 

func Equal(str1, str2 string, trim, lower bool) bool

func EqualFoldFull added in v0.41.5 

func EqualFoldFull(s, t string, caser *cases.Caser) bool

EqualFoldFull provides "full Unicode case-folding", unlike `strings.EqualFold` which provides "simple Unicode case-folding". If `caser` is set to `nil`, the default caser with no additional `cases.Option` is used.

func FirstNonEmpty 

func FirstNonEmpty(vals ...string) string

func FirstNotEmptyTrimSpace 

func FirstNotEmptyTrimSpace(candidates ...string) string

FirstNotEmptyTrimSpace returns the first non-empty string after applying `strings.TrimSpace()`.`

func FormatString 

func FormatString(s string, options []string) string

func IfBoolString 

func IfBoolString(boolVal bool, valueA, valueB string) string

func IndexMulti added in v0.37.7 

func IndexMulti(s string, substr ...string) int

IndexMulti returns the earliest match.

func InterfaceToSliceString 

func InterfaceToSliceString(s interface{}) []string

func IsAlpha added in v0.41.0 

func IsAlpha(s string) bool

func IsAlphaNumeric added in v0.41.0 

func IsAlphaNumeric(s string) bool

func IsNumeric added in v0.41.0 

func IsNumeric(s string) bool

func JoinInterface 

func JoinInterface(arr []interface{}, sep string, stripRepeatedSep bool, stripEmbeddedSep bool, altSep string) string

JoinInterface joins an interface and returns a string. It takes a join separator, boolean to replace the join separator in the string parts and a separator alternate. `stripEmbeddedSep` strips separator string found within parts. `stripRepeatedSep` strips repeating separators. This flexibility is designed to support joining data for both CSVs and paths.

func JoinLiterary 

func JoinLiterary(slice []string, sep, joinWord string) string

func JoinLiteraryQuote 

func JoinLiteraryQuote(slice []string, leftQuote, rightQuote, sep, joinWord string) string

func JoinStringsTrimSpaceToLowerSort 

func JoinStringsTrimSpaceToLowerSort(strs []string, sep string) string

func JoinTrimSpace 

func JoinTrimSpace(strs []string) string

func Match 

func Match(s string, matchInfo MatchInfo) (bool, error)

Match provides an canonical way to match strings using multiple approaches

func Matrix2DColRowIndex added in v0.40.3 

func Matrix2DColRowIndex(mat [][]string, colIdx uint, s string) (int, error)

Matrix2DColRowIndex returns the row index where the string supplied is first encountered for a supplied column index.

func NewlineToLinux 

func NewlineToLinux(input string) string

func PadLeft 

func PadLeft(str string, pad string, length int) string

PadLeft prepends a string to a base string until the string length is greater or equal to the desired length.

func PadRight 

func PadRight(str string, pad string, length int) string

PadRight appends a string to a base string until the string length is greater or equal to the desired length.

func Quote 

func Quote(str, beg, end string) string

func RemoveSpaces 

func RemoveSpaces(input string) string

RemoveSpaces eliminates all spaces in a string.

func Reverse 

func Reverse(s string) string

Reverse reverses string using strings.Builder. It's about 3 times faster than the one with using a string concatenation

func ReverseIndex 

func ReverseIndex(s, substr string) int

ReverseIndex returns the `Index` after reversing the supplied string and substring.

func Slice2FilterLinesHaveIndex 

func Slice2FilterLinesHaveIndex(groups [][]string, needle string, wantIndex int) [][]string

func SliceBySplitLength 

func SliceBySplitLength(elems []string, sep string) map[int][]string

SliceBySplitLength returns lines by split length. This is useful for analyzing what types of data exist with different lengths.

func SliceChooseOnePreferredLowerTrimSpace 

func SliceChooseOnePreferredLowerTrimSpace(options, preferenceOrder []string) string

func SliceCondenseAndQuote 

func SliceCondenseAndQuote(items []string, trimLeft, trimRight, quoteLeft, quoteRight string) []string

func SliceCondenseAndQuoteSpace 

func SliceCondenseAndQuoteSpace(elems []string, quoteLeft, quoteRight string) []string

func SliceCondensePunctuation 

func SliceCondensePunctuation(elems []string) []string

func SliceCondenseRegexps 

func SliceCondenseRegexps(elems []string, regexps []*regexp.Regexp, replacement string) []string

func SliceCondenseSpace 

func SliceCondenseSpace(elems []string, dedupeResults, sortResults bool) []string

SliceCondenseSpace trims space from lines and removes empty lines. `unique` dedupes lines and `sort` preforms a sort on the results.

func SliceDedupe added in v0.36.4 

func SliceDedupe(elems []string) []string

SliceDedupe removes duplicate occurrences of a string from a slice, keeping the first one encountered. It maintains the order of elements in the slice.

func SliceIndex 

func SliceIndex(haystack []string, needle string, equalFold bool, caser *cases.Caser) int

SliceIndex returns the index of the first match using `=`. Returns -1 if not found. if `equalFold` is selected and `caser` is `nil`, the default caser will be used.

func SliceIndexContains added in v0.36.1 

func SliceIndexContains(s []string, substr string) int

SliceIndexContains returns the index of the first match using `strings.Contains()`. Returns -1 if not found.

func SliceIndexMore 

func SliceIndexMore(haystack []string, needle string, trimSpace, toLower bool, matchType MatchType) int

SliceIndexMore returns the index of an element in a string slice. Returns -1 if not found.

func SliceIndexOrEmpty 

func SliceIndexOrEmpty(s []string, index uint64) string

SliceIndexOrEmpty returns the element at the index provided or an empty string.

func SliceIntersection 

func SliceIntersection(list1, list2 []string) []string

func SliceIntersectionCondenseSpace 

func SliceIntersectionCondenseSpace(slice1, slice2 []string) []string

func SliceIsEmpty 

func SliceIsEmpty(elems []string, skipEmptyStrings bool) bool

SliceIsEmpty checks to see if a slice is empty. If `skipEmptyStrings` it will also return empty if all elements are empty strings or only contain spaces.

func SliceLineHasIndex 

func SliceLineHasIndex(haystack []string, needle string, wantIndex int) bool

func SliceSplitLengthStats 

func SliceSplitLengthStats(elems []string, sep string) map[int]int

SliceSplitLengthStats returns a `map[int]int` indicating how many strings of which length are present.

func SliceSubtract 

func SliceSubtract(real, filter []string) []string

SliceSubtract uses Set math to remove elements of filter from real.

func SliceToMap 

func SliceToMap(elems []string) map[string]int

func SliceToSingleIntOrNeg 

func SliceToSingleIntOrNeg(vals []string) int

SliceToSingleIntOrNeg converts a single element slice with a string to an integer or `-1`

func SliceTrim 

func SliceTrim(elems []string, cutstr string, condense bool) []string

SliceTrim trims each line in a slice of lines using a provided cut string.

func SliceTrimSpace 

func SliceTrimSpace(elems []string, condense bool) []string

SliceTrimSpace removes leading and trailing spaces per string. If condense is used, empty strings are removed.

func SlicesCompare 

func SlicesCompare(sliceA, sliceB []string) ([]string, []string, []string)

SlicesCompare returns 3 slices given 2 slices which represent intersection sets. The first set is present in slice A but not B, second for both and third present in slice B but not A.

func SplitCondenseSpace 

func SplitCondenseSpace(s, sep string) []string

SplitCondenseSpace splits a string and trims spaces on remaining elements, removing empty elements.

func SplitLines 

func SplitLines(s string) []string

func SplitTextLines 

func SplitTextLines(text string) []string

SplitTextLines splits a string on the regxp `(\r\n|\r|\n)`.

func SplitTrimSpace 

func SplitTrimSpace(s, sep string) []string

SplitTrimSpace splits a string and trims spaces on remaining elements.

func StringToConstant 

func StringToConstant(s string) string

StringToConstant is used to generate constant names for code generation. It uses the commonInitialisms in Go Lint.

func StripControl 

func StripControl(s string) string

func StripSubstring added in v0.36.1 

func StripSubstring(s, substr string, insensitive bool) string

func SubstringIsSuffix 

func SubstringIsSuffix(s1, s2 string) bool

func SuffixMap 

func SuffixMap(inputs, suffixes []string) (prefixes []string, matches map[string]string, nonmatches []string)

func SuffixParse added in v0.41.0 

func SuffixParse(s, wantSuffix string) (fullstring, prefix, suffix string)

func SuffixReplace added in v0.41.0 

func SuffixReplace(s, oldSuffix, newSuffix string) string

func SuffixStrip added in v0.41.0 

func SuffixStrip(s, suffix string) string

func ToBool 

func ToBool(v string) bool

ToBool converts a string to a boolean value converting "f", "false", "0" and the empty string to false with everything else being true.

func ToLineFeeds 

func ToLineFeeds(s string) string

func ToLowerFirst 

func ToLowerFirst(s1 string) string

ToLowerFirst lower cases the first letter in the string

func ToOpposite 

func ToOpposite(s string) string

func ToUpperFirst 

func ToUpperFirst(s1 string, lowerRest bool) string

ToUpperFirst upper cases the first letter in the string

func TrimSentenceLength 

func TrimSentenceLength(sentenceInput string, maxLength int) string

TrimSentenceLength trims a string by a max length at word boundaries.

func TrimSpaceOrDefault 

func TrimSpaceOrDefault(str, defaultValue string) string

TrimSpaceOrDefault trims spaces and replaces default value if result is empty string.

func URLToMarkdownLinkHostname added in v0.37.0 

func URLToMarkdownLinkHostname(url string) string

func Unshift 

func Unshift(elems []string, x string) []string

Unshift adds an element at the first position of the slice.

Types

type MatchInfo 

type MatchInfo struct {
	MatchType  MatchType
	String     string
	Regexp     *regexp.Regexp
	TimeLayout string
	TimeMin    time.Time
	TimeMax    time.Time
}

type MatchType 

type MatchType int
const (
	MatchExact MatchType = iota
	MatchTrimSpace
	MatchTrimSpaceLower
	MatchRegexp
	MatchTimeGT
	MatchTimeGTE
	MatchTimeLT
	MatchTimeLTE
	MatchHasSuffix
	MatchHasPrefix
)

type Quoter 

type Quoter struct {
	Beg string
	End string
}

func (Quoter) Quote 

func (qtr Quoter) Quote(input string) string

type StrUtil 

type StrUtil struct {
	RxSpaceBeg   *regexp.Regexp
	RxSpaceEnd   *regexp.Regexp
	RxSpacePunct *regexp.Regexp
	RxDash       *regexp.Regexp
}

func NewStrUtil 

func NewStrUtil() StrUtil

func (*StrUtil) Trim 

func (str *StrUtil) Trim(bytes []byte) []byte

type StringSlice 

type StringSlice []string

func (StringSlice) Exists 

func (sx StringSlice) Exists(s string) bool

type Stringable added in v0.39.4 

type Stringable interface {
	String() string
}

type StringableWithErr added in v0.40.13 

type StringableWithErr interface {
	String() (string, error)
}

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