diff options
Diffstat (limited to 'vendor/github.com/mgutz/str/funcsAO.go')
-rw-r--r-- | vendor/github.com/mgutz/str/funcsAO.go | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/vendor/github.com/mgutz/str/funcsAO.go b/vendor/github.com/mgutz/str/funcsAO.go new file mode 100644 index 000000000..fd17c1c12 --- /dev/null +++ b/vendor/github.com/mgutz/str/funcsAO.go @@ -0,0 +1,337 @@ +package str + +import ( + "fmt" + "html" + //"log" + "regexp" + "strings" +) + +// Verbose flag enables console output for those functions that have +// counterparts in Go's excellent stadard packages. +var Verbose = false +var templateOpen = "{{" +var templateClose = "}}" + +var beginEndSpacesRe = regexp.MustCompile("^\\s+|\\s+$") +var camelizeRe = regexp.MustCompile(`(\-|_|\s)+(.)?`) +var camelizeRe2 = regexp.MustCompile(`(\-|_|\s)+`) +var capitalsRe = regexp.MustCompile("([A-Z])") +var dashSpaceRe = regexp.MustCompile(`[-\s]+`) +var dashesRe = regexp.MustCompile("-+") +var isAlphaNumericRe = regexp.MustCompile(`[^0-9a-z\xC0-\xFF]`) +var isAlphaRe = regexp.MustCompile(`[^a-z\xC0-\xFF]`) +var nWhitespaceRe = regexp.MustCompile(`\s+`) +var notDigitsRe = regexp.MustCompile(`[^0-9]`) +var slugifyRe = regexp.MustCompile(`[^\w\s\-]`) +var spaceUnderscoreRe = regexp.MustCompile("[_\\s]+") +var spacesRe = regexp.MustCompile("[\\s\\xA0]+") +var stripPuncRe = regexp.MustCompile(`[^\w\s]|_`) +var templateRe = regexp.MustCompile(`([\-\[\]()*\s])`) +var templateRe2 = regexp.MustCompile(`\$`) +var underscoreRe = regexp.MustCompile(`([a-z\d])([A-Z]+)`) +var whitespaceRe = regexp.MustCompile(`^[\s\xa0]*$`) + +func min(a, b int) int { + if a < b { + return a + } + return b +} + +func max(a, b int) int { + if a > b { + return a + } + return b +} + +// Between extracts a string between left and right strings. +func Between(s, left, right string) string { + l := len(left) + startPos := strings.Index(s, left) + if startPos < 0 { + return "" + } + endPos := IndexOf(s, right, startPos+l) + //log.Printf("%s: left %s right %s start %d end %d", s, left, right, startPos+l, endPos) + if endPos < 0 { + return "" + } else if right == "" { + return s[endPos:] + } else { + return s[startPos+l : endPos] + } +} + +// BetweenF is the filter form for Between. +func BetweenF(left, right string) func(string) string { + return func(s string) string { + return Between(s, left, right) + } +} + +// Camelize return new string which removes any underscores or dashes and convert a string into camel casing. +func Camelize(s string) string { + return camelizeRe.ReplaceAllStringFunc(s, func(val string) string { + val = strings.ToUpper(val) + val = camelizeRe2.ReplaceAllString(val, "") + return val + }) +} + +// Capitalize uppercases the first char of s and lowercases the rest. +func Capitalize(s string) string { + return strings.ToUpper(s[0:1]) + strings.ToLower(s[1:]) +} + +// CharAt returns a string from the character at the specified position. +func CharAt(s string, index int) string { + l := len(s) + shortcut := index < 0 || index > l-1 || l == 0 + if shortcut { + return "" + } + return s[index : index+1] +} + +// CharAtF is the filter form of CharAt. +func CharAtF(index int) func(string) string { + return func(s string) string { + return CharAt(s, index) + } +} + +// ChompLeft removes prefix at the start of a string. +func ChompLeft(s, prefix string) string { + if strings.HasPrefix(s, prefix) { + return s[len(prefix):] + } + return s +} + +// ChompLeftF is the filter form of ChompLeft. +func ChompLeftF(prefix string) func(string) string { + return func(s string) string { + return ChompLeft(s, prefix) + } +} + +// ChompRight removes suffix from end of s. +func ChompRight(s, suffix string) string { + if strings.HasSuffix(s, suffix) { + return s[:len(s)-len(suffix)] + } + return s +} + +// ChompRightF is the filter form of ChompRight. +func ChompRightF(suffix string) func(string) string { + return func(s string) string { + return ChompRight(s, suffix) + } +} + +// Classify returns a camelized string with the first letter upper cased. +func Classify(s string) string { + return Camelize("-" + s) +} + +// ClassifyF is the filter form of Classify. +func ClassifyF(s string) func(string) string { + return func(s string) string { + return Classify(s) + } +} + +// Clean compresses all adjacent whitespace to a single space and trims s. +func Clean(s string) string { + s = spacesRe.ReplaceAllString(s, " ") + s = beginEndSpacesRe.ReplaceAllString(s, "") + return s +} + +// Dasherize converts a camel cased string into a string delimited by dashes. +func Dasherize(s string) string { + s = strings.TrimSpace(s) + s = spaceUnderscoreRe.ReplaceAllString(s, "-") + s = capitalsRe.ReplaceAllString(s, "-$1") + s = dashesRe.ReplaceAllString(s, "-") + s = strings.ToLower(s) + return s +} + +// EscapeHTML is alias for html.EscapeString. +func EscapeHTML(s string) string { + if Verbose { + fmt.Println("Use html.EscapeString instead of EscapeHTML") + } + return html.EscapeString(s) +} + +// DecodeHTMLEntities decodes HTML entities into their proper string representation. +// DecodeHTMLEntities is an alias for html.UnescapeString +func DecodeHTMLEntities(s string) string { + if Verbose { + fmt.Println("Use html.UnescapeString instead of DecodeHTMLEntities") + } + return html.UnescapeString(s) +} + +// EnsurePrefix ensures s starts with prefix. +func EnsurePrefix(s, prefix string) string { + if strings.HasPrefix(s, prefix) { + return s + } + return prefix + s +} + +// EnsurePrefixF is the filter form of EnsurePrefix. +func EnsurePrefixF(prefix string) func(string) string { + return func(s string) string { + return EnsurePrefix(s, prefix) + } +} + +// EnsureSuffix ensures s ends with suffix. +func EnsureSuffix(s, suffix string) string { + if strings.HasSuffix(s, suffix) { + return s + } + return s + suffix +} + +// EnsureSuffixF is the filter form of EnsureSuffix. +func EnsureSuffixF(suffix string) func(string) string { + return func(s string) string { + return EnsureSuffix(s, suffix) + } +} + +// Humanize transforms s into a human friendly form. +func Humanize(s string) string { + if s == "" { + return s + } + s = Underscore(s) + var humanizeRe = regexp.MustCompile(`_id$`) + s = humanizeRe.ReplaceAllString(s, "") + s = strings.Replace(s, "_", " ", -1) + s = strings.TrimSpace(s) + s = Capitalize(s) + return s +} + +// Iif is short for immediate if. If condition is true return truthy else falsey. +func Iif(condition bool, truthy string, falsey string) string { + if condition { + return truthy + } + return falsey +} + +// IndexOf finds the index of needle in s starting from start. +func IndexOf(s string, needle string, start int) int { + l := len(s) + if needle == "" { + if start < 0 { + return 0 + } else if start < l { + return start + } else { + return l + } + } + if start < 0 || start > l-1 { + return -1 + } + pos := strings.Index(s[start:], needle) + if pos == -1 { + return -1 + } + return start + pos +} + +// IsAlpha returns true if a string contains only letters from ASCII (a-z,A-Z). Other letters from other languages are not supported. +func IsAlpha(s string) bool { + return !isAlphaRe.MatchString(strings.ToLower(s)) +} + +// IsAlphaNumeric returns true if a string contains letters and digits. +func IsAlphaNumeric(s string) bool { + return !isAlphaNumericRe.MatchString(strings.ToLower(s)) +} + +// IsLower returns true if s comprised of all lower case characters. +func IsLower(s string) bool { + return IsAlpha(s) && s == strings.ToLower(s) +} + +// IsNumeric returns true if a string contains only digits from 0-9. Other digits not in Latin (such as Arabic) are not currently supported. +func IsNumeric(s string) bool { + return !notDigitsRe.MatchString(s) +} + +// IsUpper returns true if s contains all upper case chracters. +func IsUpper(s string) bool { + return IsAlpha(s) && s == strings.ToUpper(s) +} + +// IsEmpty returns true if the string is solely composed of whitespace. +func IsEmpty(s string) bool { + if s == "" { + return true + } + return whitespaceRe.MatchString(s) +} + +// Left returns the left substring of length n. +func Left(s string, n int) string { + if n < 0 { + return Right(s, -n) + } + return Substr(s, 0, n) +} + +// LeftF is the filter form of Left. +func LeftF(n int) func(string) string { + return func(s string) string { + return Left(s, n) + } +} + +// LeftOf returns the substring left of needle. +func LeftOf(s string, needle string) string { + return Between(s, "", needle) +} + +// Letters returns an array of runes as strings so it can be indexed into. +func Letters(s string) []string { + result := []string{} + for _, r := range s { + result = append(result, string(r)) + } + return result +} + +// Lines convert windows newlines to unix newlines then convert to an Array of lines. +func Lines(s string) []string { + s = strings.Replace(s, "\r\n", "\n", -1) + return strings.Split(s, "\n") +} + +// Map maps an array's iitem through an iterator. +func Map(arr []string, iterator func(string) string) []string { + r := []string{} + for _, item := range arr { + r = append(r, iterator(item)) + } + return r +} + +// Match returns true if patterns matches the string +func Match(s, pattern string) bool { + r := regexp.MustCompile(pattern) + return r.MatchString(s) +} |