/
ms.go
664 lines (606 loc) · 17.3 KB
/
ms.go
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//
// Copyright (C) Philip Schlump, 2013-2015.
//
// My Strings (ms) package
//
// String and Os/String related support functions that work with Go (golang) templates.
// test change from new system. Just a test.
//
package ms
import (
"bytes"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"os"
"regexp"
"strconv"
"strings"
"time"
strftime "github.com/hhkbp2/go-strftime" // ../strftime
"github.com/pschlump/MiscLib"
tr "github.com/pschlump/dbgo"
words "github.com/pschlump/gowords"
"github.com/pschlump/picfloat" // "../picfloat"
"github.com/pschlump/pictime" // "../pictime"
)
const ISO8601 = "2006-01-02T15:04:05.99999Z07:00"
// This is annoying but I had to include this function or the Go (verison 1.2) compiler
// hurled. Oh well.... It is short - just leave it in.
// func dummy() {
// fmt.Printf("Make da compiler happy\n")
// }
const (
PathSep = string(os.PathSeparator)
)
// Implement Dijkstra's L algorythm on an array of strings.
// Return -1 if not found, else index of item.
func FindCol(aName string, nameArray []string) int {
for i, v := range nameArray {
if aName == v {
return i
}
}
return -1
}
// Center the string 's' in the width 'n'
func CenterStr(n int, t interface{}) (r string) {
s := fmt.Sprintf("%v", t)
l := len(s)
// fmt.Printf ( "l=%d\n", l )
if l < n {
blanks := (n - l) / 2
// fmt.Printf ( "blanks=%d\n", blanks )
r = PadStrRight(n, " ", PadStr(blanks+l, " ", s))
} else {
r = s
}
return
}
// PadStr pads a string with 'w' to a length of 'l' - pad on left
func PadStr(l int, w string, s string) string {
if len(s) >= l {
return s
}
k := l - len(s)
t := ""
for i := 0; i < k; i++ {
t += w
}
return t + s
}
// PadStrRight pads a string with 'w' to a length of 'l' - pad on right
func PadStrRight(l int, w string, s string) string {
if len(s) >= l {
return s
}
k := l - len(s)
t := ""
for i := 0; i < k; i++ {
t += w
}
return s + t
}
// ZeroPad left pad a string with "0" to the desired length 'l'
func ZeroPad(l int, s string) string {
return PadStr(l, "0", s)
}
// ZeroPadRight pad on right a string with "0" to desired length 'l'
func ZeroPadRight(l int, s string) string {
return PadStrRight(l, "0", s)
}
// Merge sets of data ----------------------------------------------------------------------------------------------------
// LowerCaseNames convers the keys on a map of strings to lower case
func LowerCaseNames(a map[string]interface{}) (rv map[string]interface{}) {
rv = make(map[string]interface{})
for i, v := range a {
rv[strings.ToLower(i)] = v
}
return
}
func ExtendData(a map[string]interface{}, b map[string]interface{}) (rv map[string]interface{}) {
rv = make(map[string]interface{})
for i, v := range a {
rv[i] = v
}
for i, v := range b {
rv[i] = v
}
return
}
// Copy 'a', if same key in 'b', then copy data from b, prefering data from 'b'
func LeftData(a map[string]interface{}, b map[string]interface{}) (rv map[string]interface{}) {
rv = make(map[string]interface{})
for i, v := range a {
rv[i] = v
}
for i, v := range b {
if _, ok := a[i]; ok {
rv[i] = v
}
}
return
}
// Keep the data that has common keys between 'a' and 'b', prefering data from 'b'
// not used at the moment.
func IntersectData(a map[string]interface{}, b map[string]interface{}) (rv map[string]interface{}) {
rv = make(map[string]interface{})
for i, v := range a {
if _, ok := b[i]; ok {
rv[i] = v
}
}
for i, v := range b {
if _, ok := a[i]; ok {
rv[i] = v
}
}
return
}
func SplitOnWords(s string) (record []string) {
// fmt.Printf ( "For ->%s<-\n", s )
var reader *words.Reader
reader = words.NewReader(strings.NewReader(s))
record, err := reader.Read()
if err == io.EOF {
// return
} else if err != nil {
fmt.Printf("Error(12015): %v\n", err)
}
// fmt.Printf ( "SpitOnWords Gets ->%v<-\n", record )
return
}
func PadOnLeft(n int, s interface{}) (r string) {
r = fmt.Sprintf(fmt.Sprintf("%%%dv", n), s)
return
}
func PadOnRight(n int, s interface{}) (r string) {
r = fmt.Sprintf(fmt.Sprintf("%%-%dv", n), s)
return
}
//func centerStr ( n int, s string ) ( r string ) {
// l := len(s)
// if l < n {
// // fmt.Printf ( "Centering a narow field in a wide area, l=%d, n=%d\n", l, n )
// blanks := (n-l)/2
// // fmt.Printf ( "blanks=%d\n", blanks )
// p1 := fmt.Sprintf ( "%%%ds%%s", blanks )
// // fmt.Printf ( "format to right just/leading blanks string p1=->%s<-\n", p1 )
// p2 := fmt.Sprintf ( p1, "", s )
// // fmt.Printf ( "value with leading blanks >%s<-\n", p2 )
// p4 := fmt.Sprintf ( "%%-%ds", n )
// p3 := fmt.Sprintf ( p4, p2 )
// // fmt.Printf ( "value with trailing blanks >%s<-\n", p3 )
// r = p3
// } else {
// r = s
// }
// return
//}
func FmtDate(f string, t time.Time) (r string) {
r = t.Format(f)
return
}
func FmtDateTS(f string, ts string) (r string) {
fff := "2006-01-02T15:04:05.00000+0000"
t, err := time.Parse(fff, ts)
if err != nil {
fmt.Fprintf(os.Stderr, "%sUnable to parse ->%s<- with format ->%s<- error=%s%s\n", MiscLib.ColorRed, ts, fff, err, MiscLib.ColorReset)
return "2006-01-02T15:04:05.000Z"
}
r = t.Format(f)
return
}
func IsEven(x int) (r bool) {
if (x % 2) == 0 {
r = true
} else {
r = false
}
return
}
func StrFTime(f string, t time.Time) (r string) {
// older version of library returned errros if there was one
//r, err := strftime.Format(f, t)
//if err != nil {
// r = fmt.Sprintf("%v", err)
//}
r = strftime.Format(f, t)
return
}
func PicFloat(format string, flt interface{}) (r string) {
switch flt.(type) {
case int:
r = picfloat.Format(format, float64(flt.(int)))
case int64:
r = picfloat.Format(format, float64(flt.(int64)))
case float32:
r = picfloat.Format(format, float64(flt.(float32)))
case float64:
r = picfloat.Format(format, flt.(float64))
case string:
f, err := strconv.ParseFloat(flt.(string), 64)
if err != nil {
f = 0.0
}
r = picfloat.Format(format, f)
default:
fmt.Printf("Error(12026): invalid data type for PicFloat, got %T\n", flt)
}
return
}
func Nvl(show string, d string) string {
if d == "" {
return show
} else {
return d
}
}
// idiotic format for dates ( just use ISO format YYYY-MM-DDTHH:mm:ss.nnn! )
//
// <field member="Arrival" columns="40">Arrived : {0:hh:mm tt ddd, MMM dd, yyyy}</field>
// hh - 2digit hours
// mm - 2digit minutes
// tt - lower case am/pm
// ddd - day of week
// MMM - 3 char month name abrev.
// dd - 2 digit day of month.
// yyyy - year 4 digit
func PicTime(f string, t interface{}) (r string) {
switch t.(type) {
case time.Time:
var err error
r, err = pictime.Format(f, t.(time.Time))
if err != nil {
r = fmt.Sprintf("%v", err)
}
case int:
r = fmt.Sprintf("Error(14026): invalid data type for PicTime, got %T\n", t)
//r = picfloat.Format ( format, float64(flt.(int)) )
case int64:
r = fmt.Sprintf("Error(14027): invalid data type for PicTime, got %T\n", t)
//r = picfloat.Format ( format, float64(flt.(int64)) )
case float32:
r = fmt.Sprintf("Error(14031): invalid data type for PicTime, got %T\n", t)
//r = picfloat.Format ( format, float64(flt.(float32)) )
case float64:
r = fmt.Sprintf("Error(14032): invalid data type for PicTime, got %T\n", t)
//r = picfloat.Format ( format, flt.(float64) )
case string:
// f, err := strconv.ParseFloat ( flt.(string), 64 )
// if err != nil {
// f = 0.0
// }
// r = picfloat.Format ( format, f )
d, _, err := FuzzyDateTimeParse(t.(string), false)
// r = t.(string)
r, err = pictime.Format(f, d)
if err != nil {
r = fmt.Sprintf("%v", err)
}
default:
r = fmt.Sprintf("Error(14033): invalid data type for PicFloat, got %T\n", t)
}
return
}
type datePat struct {
fmt *regexp.Regexp
prep func(s string, t string) string
pfmt string
}
var datePatTab []datePat
const db_fuzzy_date = true
func rmQuote(s string, t string) string {
return strings.Trim(s, `"`)
}
func resetToOrig(s string, t string) string {
return t
}
func rmTrailingZ(s string, t string) string {
matched := strings.HasSuffix(s, "Z")
if matched {
return strings.TrimRight(s, "Z")
}
return s
}
func init() {
// isIntStringRe = regexp.MustCompile("[0-9][0-9]*")
// const ISO8601 = "2006-01-02T15:04:05.99999Z07:00"
/* 0 */
datePatTab = append(datePatTab, datePat{regexp.MustCompile(`"`), rmQuote, ""})
/* 1 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`Z$`), rmTrailingZ, ""})
/* 2 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{2}/\d{2}/\d{4} \d{2}:\d{2}:\d{2} [aApP][mM]$`), nil, "01/02/2006 03:04:05 PM"})
/* 3 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{2}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} [aApP][mM]$`), nil, "01/02/06 03:04:05 PM"})
/* 2 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{2}/\d{2}/\d{4} \d{1}:\d{2}:\d{2} [aApP][mM]$`), nil, "01/02/2006 3:04:05 PM"})
/* 3 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{2}/\d{2}/\d{2} \d{1}:\d{2}:\d{2} [aApP][mM]$`), nil, "01/02/06 3:04:05 PM"})
/* 4 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{2}/\d{2}/\d{4} \d{2}:\d{2} [aApP][mM]$`), nil, "01/02/2006 03:04 PM"})
/* 5 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{2}/\d{2}/\d{2} \d{2}:\d{2} [aApP][mM]$`), nil, "01/02/06 03:04 PM"})
/* 4 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{2}/\d{2}/\d{4} \d{1}:\d{2} [aApP][mM]$`), nil, "01/02/2006 3:04 PM"})
/* 5 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{2}/\d{2}/\d{2} \d{1}:\d{2} [aApP][mM]$`), nil, "01/02/06 3:04 PM"})
/* 6 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+$`), nil, "2006-01-02T15:04:05.99999"})
/* 7 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}$`), nil, "2006-01-02T15:04:05"})
/* 8 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{4}-\d{2}-\d{2}$`), nil, "2006-01-02"})
/* 9 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{2}-\d{2}-\d{2}$`), nil, "06-01-02"})
/*10 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`.`), resetToOrig, ""})
/*11 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`"`), rmQuote, ""})
/*12 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+[-+]\d{2}:\d{2}$`), nil, "2006-01-02T15:04:05.99999-07:00"})
/*13 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d+[-+]\d{4}$`), nil, "2006-01-02T15:04:05.99999-0700"})
/*14 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}[-+]\d{2}:\d{2}$`), nil, "2006-01-02T15:04:05-07:00"})
/*15 */ datePatTab = append(datePatTab, datePat{regexp.MustCompile(`^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}[-+]\d{4}$`), nil, "2006-01-02T15:04:05-0700"})
// 2013-11-06T00:00:00+0000
}
func FuzzyDateTimeParse(s string, nullOk bool) (d time.Time, isNull bool, err error) {
t := s
isNull = false
if len(s) == 0 && nullOk {
isNull = true
err = nil
return
}
for i, v := range datePatTab {
// _ = i
if v.fmt.MatchString(s) {
if db_fuzzy_date {
fmt.Printf("got match at %d, s=%s, pfmt=%s\n", i, s, v.pfmt)
}
if v.prep != nil {
s = v.prep(s, t)
if db_fuzzy_date {
fmt.Printf(" mod s to s=%s\n", s)
}
}
if len(v.pfmt) > 0 {
d, err = time.Parse(v.pfmt, s)
if err == nil {
if db_fuzzy_date {
fmt.Printf(" success at %d\n", i)
}
return
}
}
}
}
err = errors.New("Invalid date, unable to parse it.")
return
}
func FmtPrintfStr(f string, s interface{}) (r string) {
r = fmt.Sprintf(f, s)
return
}
func findFixBindAndQuote(s string) (qryFixed string, bindVars []string, err error) {
err = nil
q := []byte(s)
var w []byte
var bv []byte
var fDollar bool = false
st := 0
for i, v := range q {
switch st {
case 0:
switch v {
case '\'': // Quoted String
st = 2
w = append(w, v)
case '"':
st = 1
w = append(w, '[')
case '$':
bv = bv[:0]
fDollar = true
st = 4
w = append(w, '?')
default:
w = append(w, v)
}
case 1:
switch v {
case '"':
if i+1 < len(q) && q[i+1] == '"' {
st = 3
w = append(w, v)
} else {
st = 0
w = append(w, ']')
}
default:
w = append(w, v)
}
case 2: // Inside ' string
switch v {
case '\'':
st = 0
w = append(w, v)
default:
w = append(w, v)
}
case 3: // Advance 1 char, ignore
st = 0
case 4: // Grab a bind variable
switch v {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
bv = append(bv, v)
default: // gone 1 too far [ mimic state 0 ]
st = 0
bindVars = append(bindVars, string(bv))
bv = bv[:0]
fDollar = false
{
switch v {
case '\'': // Quoted String
st = 2
w = append(w, v)
case '"':
st = 1
w = append(w, '[')
case '$':
bv = bv[:0]
st = 4
w = append(w, '?')
default:
w = append(w, v)
}
}
}
default:
panic("UnreacableCode(12028): Invalid state")
}
}
if st == 2 {
err = errors.New("Ended inside quoted string")
}
if len(bv) > 0 || fDollar {
bindVars = append(bindVars, string(bv))
}
qryFixed = string(w)
return
}
func FixBindParams(qry string, data ...interface{}) (qryFixed string, retData []interface{}, err error) {
var k int64
err = nil
qryFixed, bindVars, e2 := findFixBindAndQuote(qry) // Get array of bind params // R.E. to match $[0-9][0-9]*
err = e2
// fmt.Printf ( "bindVars = %v\n", bindVars )
for _, v := range bindVars {
k, err = strconv.ParseInt(v, 10, 32)
if err != nil {
return
}
// fmt.Printf ( "bind set k=%d\n", k )
if k > 0 && int(k) <= len(data) {
retData = append(retData, data[k-1])
} else {
err = errors.New(fmt.Sprintf("Error(12027): Query (%s) is invalid, insufficient bind parameters were passed.", qry))
}
}
return
}
func Concat(args ...interface{}) string {
//fmt.Fprintf ( xOut, "Concat: args=%v\n", args )
if len(args) == 0 {
return ""
}
s := ""
for i, y := range args {
switch y.(type) {
case string:
s += y.(string)
// fmt.Fprintf ( xOut, "Concat: %dth arg ->%v<-\n", i, y )
case int, int64, byte, float32, float64:
s += fmt.Sprintf("%v", y)
// fmt.Fprintf ( xOut, "Concat: %dth arg ->%v<-\n", i, y )
case time.Time:
s += (args[i+2].(time.Time)).Format(ISO8601)
default:
s += ""
fmt.Printf("Concat: don't know what to do with: %dth arg ->%T<-\n", i, y)
}
}
return s
}
// ===================================================================================================================================================
// New Mon Feb 23 16:37:31 MST 2015
// ===================================================================================================================================================
// {{ifDef . "Placeholder" "placeholder=\"" "$$" "\""}}
func IfDef(dataHash map[string]interface{}, it string, ss ...string) string {
if x, ok := dataHash[it]; ok {
rv := ""
for _, v := range ss {
if v == "$$" {
rv += fmt.Sprintf("%s", x)
} else {
rv += v
}
}
return rv
}
return ""
}
func IfIsDef(dataHash map[string]interface{}, it string) bool {
fmt.Printf("it=%s\n", it)
if x, ok := dataHash[it]; ok {
fmt.Printf("Returning %v, v2=%v\n", ok, x)
return ok
}
return false
}
/*
Sat May 11 20:30:16 MDT 2019
func IfIsLen0(dataHash map[string]interface{}, it string) bool {
fmt.Printf("IfIsLen0: it=%s\n", it)
if x, ok := dataHash[it]; ok {
l := len(x)
fmt.Printf("Returning %v, v2=%v\n", l == 0, x)
return l == 0
}
return false
}
*/
func IfIsNotNull(dataHash map[string]interface{}, it string) bool {
if x, ok := dataHash[it]; ok {
if ok {
return x != nil
}
}
return false
}
// ===================================================================================================================================================
func DoPost(client *http.Client, Url string, s string) string {
r1, e0 := client.PostForm(Url, url.Values{"auth_token": {s}})
if e0 != nil {
fmt.Printf("Error!!!!!!!!!!! %v, %s\n", e0, tr.LF())
return "Error"
}
rv, e1 := ioutil.ReadAll(r1.Body)
if e1 != nil {
fmt.Printf("Error!!!!!!!!!!! %v, %s\n", e1, tr.LF())
return "Error"
}
r1.Body.Close()
if string(rv[0:6]) == ")]}',\n" {
rv = rv[6:]
}
return string(rv)
}
// ===================================================================================================================================================
func DoGet(client *http.Client, url string) string {
r1, e0 := client.Get(url)
if e0 != nil {
fmt.Printf("Error!!!!!!!!!!! %v, %s\n", e0, tr.LF())
return "Error"
}
rv, e1 := ioutil.ReadAll(r1.Body)
if e1 != nil {
fmt.Printf("Error!!!!!!!!!!! %v, %s\n", e1, tr.LF())
return "Error"
}
r1.Body.Close()
if string(rv[0:6]) == ")]}',\n" {
rv = rv[6:]
}
return string(rv)
}
// ===================================================================================================================================================
func Tr(line, pat, rep string) (rv string) {
inPat := make(map[rune]int)
for ii, rn := range pat {
inPat[rn] = ii
}
var buffer bytes.Buffer
for _, rn := range line {
if pos, found := inPat[rn]; found {
if pos < len(rep) {
buffer.WriteByte(rep[pos])
} else {
buffer.WriteByte(rep[len(rep)-1])
}
} else {
buffer.WriteRune(rn)
}
}
rv = buffer.String()
return
}
/* vim: set noai ts=4 sw=4: */