07e0e587fa
ADDED: * math, time functions to tplx/sprigx FIXED: * logging not initializing properly on some BSDs
140 lines
2.5 KiB
Go
140 lines
2.5 KiB
Go
package sprigx
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import (
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`errors`
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`strconv`
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`strings`
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`time`
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)
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/*
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tmFmt formats time t using format string fstr.
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While one certainly can do the same via e.g.
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{{- $t := tmNow -}}
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{{ $t.Format $fstr }}
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This takes a time.Time as the second (and last) parameter,
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allowing it to work in pipelines.
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*/
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func tmFmt(fstr string, t time.Time) (out string) {
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out = t.Format(fstr)
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return
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}
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/*
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tmParseMonth attempts to first try tmParseMonthInt
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and then tries tmParseMonthStr if v is not "numeric".
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*/
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func tmParseMonth(v any) (mon time.Month, err error) {
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var s string
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if mon, err = tmParseMonthInt(v); err != nil {
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if errors.Is(err, strconv.ErrSyntax) {
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// NaN
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err = nil
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} else {
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return
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}
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}
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// If it gets here, it's a non-numeric string.
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if s, err = toString(v); err != nil {
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return
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}
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if mon, err = tmParseMonthStr(s); err != nil {
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return
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}
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return
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}
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/*
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tmParseMonthInt parses a number representation of month n to a time.Month.
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n may be any numeric type or a string representation of a number
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(or a custom type derived from those).
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A negative integer (or float, etc.) will be converted to a positive one (e.g. -6 => 6 => time.June).
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floats are rounded to the nearest integer.
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The integer should map directly to the month constants in the time module:
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* 1: January
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* 2: February
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* 3: March
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* 4: April
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* 5: May
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* 6: June
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* 7: July
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* 8: August
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* 9: September
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* 10: October
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* 11: November
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* 12: December
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If n resolves to 0, mon will be the current month (as determined by time.Now).
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If n resolves to > 12, err will be ErrBadMonth.
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*/
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func tmParseMonthInt(n any) (mon time.Month, err error) {
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var i int
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if i, _, err = toPosInt(n); err != nil {
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return
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}
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if i == 0 {
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mon = time.Now().Month()
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return
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}
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if i > 12 {
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err = ErrBadMonth
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return
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}
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mon = time.Month(i)
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return
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}
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/*
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tmParseMonthStr parses a string representation of month s to a time.Month.
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It normalizes s to lowercase and only uses the first 3 characters
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(the minimum length needed to determine month name
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uniqueness - "June" vs. "July", "March" vs. "May").
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An empty (or whitespace-only) string will use the current month (as determined by time.Now).
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*/
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func tmParseMonthStr(s string) (mon time.Month, err error) {
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var i int
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var m time.Month
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if strings.TrimSpace(s) == "" {
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mon = time.Now().Month()
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return
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}
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s = strings.ToLower(strings.TrimSpace(s))[0:3]
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for i = range 12 {
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m = time.Month(i + 1)
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if strings.ToLower(m.String())[0:3] == s {
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mon = m
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return
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}
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}
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err = ErrBadMonth
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return
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}
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