diff options
Diffstat (limited to 'vendor/github.com/mgutz/str/funcsPZ.go')
| -rw-r--r-- | vendor/github.com/mgutz/str/funcsPZ.go | 534 |
1 files changed, 534 insertions, 0 deletions
diff --git a/vendor/github.com/mgutz/str/funcsPZ.go b/vendor/github.com/mgutz/str/funcsPZ.go new file mode 100644 index 000000000..e8fe43f21 --- /dev/null +++ b/vendor/github.com/mgutz/str/funcsPZ.go @@ -0,0 +1,534 @@ +package str + +import ( + "fmt" + "html" + //"log" + "math" + "regexp" + "runtime" + "strconv" + "strings" + "unicode/utf8" +) + +// Pad pads string s on both sides with c until it has length of n. +func Pad(s, c string, n int) string { + L := len(s) + if L >= n { + return s + } + n -= L + + left := strings.Repeat(c, int(math.Ceil(float64(n)/2))) + right := strings.Repeat(c, int(math.Floor(float64(n)/2))) + return left + s + right +} + +// PadF is the filter form of Pad. +func PadF(c string, n int) func(string) string { + return func(s string) string { + return Pad(s, c, n) + } +} + +// PadLeft pads s on left side with c until it has length of n. +func PadLeft(s, c string, n int) string { + L := len(s) + if L > n { + return s + } + return strings.Repeat(c, (n-L)) + s +} + +// PadLeftF is the filter form of PadLeft. +func PadLeftF(c string, n int) func(string) string { + return func(s string) string { + return PadLeft(s, c, n) + } +} + +// PadRight pads s on right side with c until it has length of n. +func PadRight(s, c string, n int) string { + L := len(s) + if L > n { + return s + } + return s + strings.Repeat(c, n-L) +} + +// PadRightF is the filter form of Padright +func PadRightF(c string, n int) func(string) string { + return func(s string) string { + return PadRight(s, c, n) + } +} + +// Pipe pipes s through one or more string filters. +func Pipe(s string, funcs ...func(string) string) string { + for _, fn := range funcs { + s = fn(s) + } + return s +} + +// QuoteItems quotes all items in array, mostly for debugging. +func QuoteItems(arr []string) []string { + return Map(arr, func(s string) string { + return strconv.Quote(s) + }) +} + +// ReplaceF is the filter form of strings.Replace. +func ReplaceF(old, new string, n int) func(string) string { + return func(s string) string { + return strings.Replace(s, old, new, n) + } +} + +// ReplacePattern replaces string with regexp string. +// ReplacePattern returns a copy of src, replacing matches of the Regexp with the replacement string repl. Inside repl, $ signs are interpreted as in Expand, so for instance $1 represents the text of the first submatch. +func ReplacePattern(s, pattern, repl string) string { + r := regexp.MustCompile(pattern) + return r.ReplaceAllString(s, repl) +} + +// ReplacePatternF is the filter form of ReplaceRegexp. +func ReplacePatternF(pattern, repl string) func(string) string { + return func(s string) string { + return ReplacePattern(s, pattern, repl) + } +} + +// Reverse a string +func Reverse(s string) string { + cs := make([]rune, utf8.RuneCountInString(s)) + i := len(cs) + for _, c := range s { + i-- + cs[i] = c + } + return string(cs) +} + +// Right returns the right substring of length n. +func Right(s string, n int) string { + if n < 0 { + return Left(s, -n) + } + return Substr(s, len(s)-n, n) +} + +// RightF is the Filter version of Right. +func RightF(n int) func(string) string { + return func(s string) string { + return Right(s, n) + } +} + +// RightOf returns the substring to the right of prefix. +func RightOf(s string, prefix string) string { + return Between(s, prefix, "") +} + +// SetTemplateDelimiters sets the delimiters for Template function. Defaults to "{{" and "}}" +func SetTemplateDelimiters(opening, closing string) { + templateOpen = opening + templateClose = closing +} + +// Slice slices a string. If end is negative then it is the from the end +// of the string. +func Slice(s string, start, end int) string { + if end > -1 { + return s[start:end] + } + L := len(s) + if L+end > 0 { + return s[start : L-end] + } + return s[start:] +} + +// SliceF is the filter for Slice. +func SliceF(start, end int) func(string) string { + return func(s string) string { + return Slice(s, start, end) + } +} + +// SliceContains determines whether val is an element in slice. +func SliceContains(slice []string, val string) bool { + if slice == nil { + return false + } + + for _, it := range slice { + if it == val { + return true + } + } + return false +} + +// SliceIndexOf gets the indx of val in slice. Returns -1 if not found. +func SliceIndexOf(slice []string, val string) int { + if slice == nil { + return -1 + } + + for i, it := range slice { + if it == val { + return i + } + } + return -1 +} + +// Slugify converts s into a dasherized string suitable for URL segment. +func Slugify(s string) string { + sl := slugifyRe.ReplaceAllString(s, "") + sl = strings.ToLower(sl) + sl = Dasherize(sl) + return sl +} + +// StripPunctuation strips puncation from string. +func StripPunctuation(s string) string { + s = stripPuncRe.ReplaceAllString(s, "") + s = nWhitespaceRe.ReplaceAllString(s, " ") + return s +} + +// StripTags strips all of the html tags or tags specified by the parameters +func StripTags(s string, tags ...string) string { + if len(tags) == 0 { + tags = append(tags, "") + } + for _, tag := range tags { + stripTagsRe := regexp.MustCompile(`(?i)<\/?` + tag + `[^<>]*>`) + s = stripTagsRe.ReplaceAllString(s, "") + } + return s +} + +// Substr returns a substring of s starting at index of length n. +func Substr(s string, index int, n int) string { + L := len(s) + if index < 0 || index >= L || s == "" { + return "" + } + end := index + n + if end >= L { + end = L + } + if end <= index { + return "" + } + return s[index:end] +} + +// SubstrF is the filter form of Substr. +func SubstrF(index, n int) func(string) string { + return func(s string) string { + return Substr(s, index, n) + } +} + +// Template is a string template which replaces template placeholders delimited +// by "{{" and "}}" with values from map. The global delimiters may be set with +// SetTemplateDelimiters. +func Template(s string, values map[string]interface{}) string { + return TemplateWithDelimiters(s, values, templateOpen, templateClose) +} + +// TemplateDelimiters is the getter for the opening and closing delimiters for Template. +func TemplateDelimiters() (opening string, closing string) { + return templateOpen, templateClose +} + +// TemplateWithDelimiters is string template with user-defineable opening and closing delimiters. +func TemplateWithDelimiters(s string, values map[string]interface{}, opening, closing string) string { + escapeDelimiter := func(delim string) string { + result := templateRe.ReplaceAllString(delim, "\\$1") + return templateRe2.ReplaceAllString(result, "\\$") + } + + openingDelim := escapeDelimiter(opening) + closingDelim := escapeDelimiter(closing) + r := regexp.MustCompile(openingDelim + `(.+?)` + closingDelim) + matches := r.FindAllStringSubmatch(s, -1) + for _, submatches := range matches { + match := submatches[0] + key := submatches[1] + //log.Printf("match %s key %s\n", match, key) + if values[key] != nil { + v := fmt.Sprintf("%v", values[key]) + s = strings.Replace(s, match, v, -1) + } + } + + return s +} + +// ToArgv converts string s into an argv for exec. +func ToArgv(s string) []string { + const ( + InArg = iota + InArgQuote + OutOfArg + ) + currentState := OutOfArg + currentQuoteChar := "\x00" // to distinguish between ' and " quotations + // this allows to use "foo'bar" + currentArg := "" + argv := []string{} + + isQuote := func(c string) bool { + return c == `"` || c == `'` + } + + isEscape := func(c string) bool { + return c == `\` + } + + isWhitespace := func(c string) bool { + return c == " " || c == "\t" + } + + L := len(s) + for i := 0; i < L; i++ { + c := s[i : i+1] + + //fmt.Printf("c %s state %v arg %s argv %v i %d\n", c, currentState, currentArg, args, i) + if isQuote(c) { + switch currentState { + case OutOfArg: + currentArg = "" + fallthrough + case InArg: + currentState = InArgQuote + currentQuoteChar = c + + case InArgQuote: + if c == currentQuoteChar { + currentState = InArg + } else { + currentArg += c + } + } + + } else if isWhitespace(c) { + switch currentState { + case InArg: + argv = append(argv, currentArg) + currentState = OutOfArg + case InArgQuote: + currentArg += c + case OutOfArg: + // nothing + } + + } else if isEscape(c) { + switch currentState { + case OutOfArg: + currentArg = "" + currentState = InArg + fallthrough + case InArg: + fallthrough + case InArgQuote: + if i == L-1 { + if runtime.GOOS == "windows" { + // just add \ to end for windows + currentArg += c + } else { + panic("Escape character at end string") + } + } else { + if runtime.GOOS == "windows" { + peek := s[i+1 : i+2] + if peek != `"` { + currentArg += c + } + } else { + i++ + c = s[i : i+1] + currentArg += c + } + } + } + } else { + switch currentState { + case InArg, InArgQuote: + currentArg += c + + case OutOfArg: + currentArg = "" + currentArg += c + currentState = InArg + } + } + } + + if currentState == InArg { + argv = append(argv, currentArg) + } else if currentState == InArgQuote { + panic("Starting quote has no ending quote.") + } + + return argv +} + +// ToBool fuzzily converts truthy values. +func ToBool(s string) bool { + s = strings.ToLower(s) + return s == "true" || s == "yes" || s == "on" || s == "1" +} + +// ToBoolOr parses s as a bool or returns defaultValue. +func ToBoolOr(s string, defaultValue bool) bool { + b, err := strconv.ParseBool(s) + if err != nil { + return defaultValue + } + return b +} + +// ToIntOr parses s as an int or returns defaultValue. +func ToIntOr(s string, defaultValue int) int { + n, err := strconv.Atoi(s) + if err != nil { + return defaultValue + } + return n +} + +// ToFloat32Or parses as a float32 or returns defaultValue on error. +func ToFloat32Or(s string, defaultValue float32) float32 { + f, err := strconv.ParseFloat(s, 32) + if err != nil { + return defaultValue + } + return float32(f) +} + +// ToFloat64Or parses s as a float64 or returns defaultValue. +func ToFloat64Or(s string, defaultValue float64) float64 { + f, err := strconv.ParseFloat(s, 64) + if err != nil { + return defaultValue + } + return f +} + +// ToFloatOr parses as a float64 or returns defaultValue. +var ToFloatOr = ToFloat64Or + +// TODO This is not working yet. Go's regexp package does not have some +// of the niceities in JavaScript +// +// Truncate truncates the string, accounting for word placement and chars count +// adding a morestr (defaults to ellipsis) +// func Truncate(s, morestr string, n int) string { +// L := len(s) +// if L <= n { +// return s +// } +// +// if morestr == "" { +// morestr = "..." +// } +// +// tmpl := func(c string) string { +// if strings.ToUpper(c) != strings.ToLower(c) { +// return "A" +// } +// return " " +// } +// template := s[0 : n+1] +// var truncateRe = regexp.MustCompile(`.(?=\W*\w*$)`) +// truncateRe.ReplaceAllStringFunc(template, tmpl) // 'Hello, world' -> 'HellAA AAAAA' +// var wwRe = regexp.MustCompile(`\w\w`) +// var whitespaceRe2 = regexp.MustCompile(`\s*\S+$`) +// if wwRe.MatchString(template[len(template)-2:]) { +// template = whitespaceRe2.ReplaceAllString(template, "") +// } else { +// template = strings.TrimRight(template, " \t\n") +// } +// +// if len(template+morestr) > L { +// return s +// } +// return s[0:len(template)] + morestr +// } +// +// truncate: function(length, pruneStr) { //from underscore.string, author: github.com/rwz +// var str = this.s; +// +// length = ~~length; +// pruneStr = pruneStr || '...'; +// +// if (str.length <= length) return new this.constructor(str); +// +// var tmpl = function(c){ return c.toUpperCase() !== c.toLowerCase() ? 'A' : ' '; }, +// template = str.slice(0, length+1).replace(/.(?=\W*\w*$)/g, tmpl); // 'Hello, world' -> 'HellAA AAAAA' +// +// if (template.slice(template.length-2).match(/\w\w/)) +// template = template.replace(/\s*\S+$/, ''); +// else +// template = new S(template.slice(0, template.length-1)).trimRight().s; +// +// return (template+pruneStr).length > str.length ? new S(str) : new S(str.slice(0, template.length)+pruneStr); +// }, + +// Underscore returns converted camel cased string into a string delimited by underscores. +func Underscore(s string) string { + if s == "" { + return "" + } + u := strings.TrimSpace(s) + + u = underscoreRe.ReplaceAllString(u, "${1}_$2") + u = dashSpaceRe.ReplaceAllString(u, "_") + u = strings.ToLower(u) + if IsUpper(s[0:1]) { + return "_" + u + } + return u +} + +// UnescapeHTML is an alias for html.UnescapeString. +func UnescapeHTML(s string) string { + if Verbose { + fmt.Println("Use html.UnescapeString instead of UnescapeHTML") + } + return html.UnescapeString(s) +} + +// WrapHTML wraps s within HTML tag having attributes attrs. Note, +// WrapHTML does not escape s value. +func WrapHTML(s string, tag string, attrs map[string]string) string { + escapeHTMLAttributeQuotes := func(v string) string { + v = strings.Replace(v, "<", "<", -1) + v = strings.Replace(v, "&", "&", -1) + v = strings.Replace(v, "\"", """, -1) + return v + } + if tag == "" { + tag = "div" + } + el := "<" + tag + for name, val := range attrs { + el += " " + name + "=\"" + escapeHTMLAttributeQuotes(val) + "\"" + } + el += ">" + s + "</" + tag + ">" + return el +} + +// WrapHTMLF is the filter form of WrapHTML. +func WrapHTMLF(tag string, attrs map[string]string) func(string) string { + return func(s string) string { + return WrapHTML(s, tag, attrs) + } +} |