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tpl: Add a delimiter parameter to lang.NumFmt

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The original implementation of NumFmt did not take into account that the
options delimiter (a space) could be a valid option.  Adding a delim
parameter seems like the simplest, safest, and most flexible way to
solve this oversight in a backwards-compatible way.

Fixes #5260
This commit is contained in:
Cameron Moore 2018-10-02 09:41:48 -05:00 committed by Bjørn Erik Pedersen
parent 91f49c0700
commit ce264b936c
3 changed files with 38 additions and 14 deletions
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7
docs/content/en/functions/NumFmt.md
View file

@ -12,7 +12,7 @@ menu:
docs:
parent: "functions"
toc: false
signature: ["lang.NumFmt PRECISION NUMBER [OPTIONS]"]
signature: ["lang.NumFmt PRECISION NUMBER [OPTIONS [DELIMITER]]"]
workson: []
hugoversion:
relatedfuncs: []
@ -22,7 +22,9 @@ aliases: []
comments:
---
The default options value is `- . ,`.
The default options value is `- . ,`. The default delimiter within the options
value is a space. If you need to use a space as one of the options, set a
custom delimiter.
Numbers greater than or equal to 5 are rounded up. For example, if precision is set to `0`, `1.5` becomes `2`, and `1.4` becomes `1`.
@ -31,5 +33,6 @@ Numbers greater than or equal to 5 are rounded up. For example, if precision is
{{ lang.NumFmt 2 12345.6789 "- , ." }} → 12.345,68
{{ lang.NumFmt 0 -12345.6789 "- . ," }} → -12,346
{{ lang.NumFmt 6 -12345.6789 "- ." }} → -12345.678900
{{ lang.NumFmt 6 -12345.6789 "-|.| " "|" }} → -1 2345.678900
{{ -98765.4321 | lang.NumFmt 2 }} → -98,765.43
```

16
tpl/lang/lang.go
View file

@ -67,15 +67,27 @@ func (ns *Namespace) NumFmt(precision, number interface{}, options ...interface{
var neg, dec, grp string
if len(options) == 0 {
// TODO(moorereason): move to site config
// defaults
neg, dec, grp = "-", ".", ","
} else {
delim := " "
if len(options) == 2 {
// custom delimiter
s, err := cast.ToStringE(options[1])
if err != nil {
return "", nil
}
delim = s
}
s, err := cast.ToStringE(options[0])
if err != nil {
return "", nil
}
rs := strings.Fields(s)
rs := strings.Split(s, delim)
switch len(rs) {
case 0:
case 1:

29
tpl/lang/lang_test.go
View file

@ -18,22 +18,27 @@ func TestNumFormat(t *testing.T) {
prec int
n float64
runes string
delim string
want string
}{
{2, -12345.6789, "", "-12,345.68"},
{2, -12345.6789, "- . ,", "-12,345.68"},
{2, -12345.1234, "- . ,", "-12,345.12"},
{2, -12345.6789, "", "", "-12,345.68"},
{2, -12345.6789, "- . ,", "", "-12,345.68"},
{2, -12345.1234, "- . ,", "", "-12,345.12"},
{2, 12345.6789, "- . ,", "12,345.68"},
{0, 12345.6789, "- . ,", "12,346"},
{11, -12345.6789, "- . ,", "-12,345.67890000000"},
{2, 12345.6789, "- . ,", "", "12,345.68"},
{0, 12345.6789, "- . ,", "", "12,346"},
{11, -12345.6789, "- . ,", "", "-12,345.67890000000"},
{3, -12345.6789, "- ,", "-12345,679"},
{6, -12345.6789, "- , .", "-12.345,678900"},
{3, -12345.6789, "- ,", "", "-12345,679"},
{6, -12345.6789, "- , .", "", "-12.345,678900"},
{3, -12345.6789, "-|,| ", "|", "-12 345,679"},
{6, -12345.6789, "-|,| ", "|", "-12 345,678900"},
// Arabic, ar_AE
{6, -12345.6789, "‏- ٫ ٬", "‏-12٬345٫678900"},
{6, -12345.6789, "‏- ٫ ٬", "", "‏-12٬345٫678900"},
{6, -12345.6789, "‏-|٫| ", "|", "‏-12 345٫678900"},
}
for i, c := range cases {
@ -45,7 +50,11 @@ func TestNumFormat(t *testing.T) {
if len(c.runes) == 0 {
s, err = ns.NumFmt(c.prec, c.n)
} else {
s, err = ns.NumFmt(c.prec, c.n, c.runes)
if c.delim == "" {
s, err = ns.NumFmt(c.prec, c.n, c.runes)
} else {
s, err = ns.NumFmt(c.prec, c.n, c.runes, c.delim)
}
}
require.NoError(t, err, errMsg)