Custom helper for coords attribute
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# Changelog
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## [unversioned]
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## [0.0.5] - 2019-05-29
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### Added
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@ -10,8 +10,9 @@
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### Changed
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- Formatted code identifiers in Changelog
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- Attributes `accept`, `accept-charset`, `class`, `for`, `headers`, `ping`,
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`rel`, `srcset`, and `sandbox` have variadic string parameters.
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- `Accept`, `AcceptCharset`, `Class`, `For`, `Headers`, `Ping`, `Rel`, `Srcset`,
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and `Sandbox` attribute helper functions have variadic `string` parameters.
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- `Coords` attribute helper function has variadic `float32` parameter.
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## [0.0.4] - 2019-05-27
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19
attribute/coords.go
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attribute/coords.go
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package attribute
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import (
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"strconv"
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"strings"
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"gitlab.codemonkeysoftware.net/b/hatmill"
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)
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func Coords(values ...float32) hatmill.Attrib {
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s := make([]string, 0, len(values))
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for _, value := range values {
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s = append(s, strconv.FormatFloat(float64(value), 'G', -1, 32))
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}
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return hatmill.Attrib{
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Key: "coords",
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Value: strings.Join(s, ","),
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}
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}
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40
attribute/coords_test.go
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40
attribute/coords_test.go
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package attribute_test
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import (
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"testing"
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"gitlab.codemonkeysoftware.net/b/hatmill/attribute"
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)
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func TestCoordsNumberFormat(t *testing.T) {
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for _, testcase := range []struct {
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name string
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f float32
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value string
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}{
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{name: "zero", f: 0, value: "0"},
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{name: "integral", f: 45, value: "45"},
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{name: "positive fractional, small positive exponent", f: 12.55, value: "12.55"},
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{name: "positive fractional, large positive exponent", f: 1.55E+12, value: "1.55E+12"},
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{name: "positive fractional, large negative exponent", f: 1.55E-12, value: "1.55E-12"},
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{name: "negative fractional, small positive exponent", f: -12.55, value: "-12.55"},
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{name: "negative fractional, large positive exponent", f: -1.55E+12, value: "-1.55E+12"},
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{name: "negative fractional, large negative exponent", f: -1.55E-12, value: "-1.55E-12"},
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} {
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t.Run(testcase.name, func(t *testing.T) {
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testAttribValue(t, attribute.Coords(testcase.f), testcase.value)
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})
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}
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}
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func TestCoordsCardinality(t *testing.T) {
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t.Run("zero", func(t *testing.T) {
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testAttribValue(t, attribute.Coords(), "")
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})
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t.Run("one", func(t *testing.T) {
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testAttribValue(t, attribute.Coords(5), "5")
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})
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t.Run("many", func(t *testing.T) {
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testAttribValue(t, attribute.Coords(5, 4, 3, 2, 1), "5,4,3,2,1")
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})
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}
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@ -154,14 +154,6 @@ func Controls() hatmill.Attrib {
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}
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}
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// Coords creates a "coords" attribute
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func Coords(value string) hatmill.Attrib {
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return hatmill.Attrib{
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Key: "coords",
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Value: value,
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}
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}
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// Crossorigin creates a "crossorigin" attribute
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func Crossorigin(value string) hatmill.Attrib {
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return hatmill.Attrib{
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{"name": "contenteditable", "type": "explicit bool"},
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{"name": "contextmenu", "type": "string"},
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{"name": "controls", "type": "bool"},
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{"name": "coords", "type": "string"},
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{"name": "crossorigin", "type": "string"},
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{"name": "datetime", "type": "string"},
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{"name": "decoding", "type": "string"},
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