57 lines
1.7 KiB
Go
57 lines
1.7 KiB
Go
package pongo2addons
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import (
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"errors"
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"time"
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"github.com/flosch/pongo2"
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"github.com/extemporalgenome/slug"
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"github.com/russross/blackfriday"
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"github.com/flosch/go-humanize"
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)
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func init() {
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pongo2.RegisterFilter("markdown", filterMarkdown)
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pongo2.RegisterFilter("slugify", filterSlugify)
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pongo2.RegisterFilter("filesizeformat", filterFilesizeformat)
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pongo2.RegisterFilter("timeuntil", filterTimeuntilTimesince)
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pongo2.RegisterFilter("timesince", filterTimeuntilTimesince)
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pongo2.RegisterFilter("naturaltime", filterTimeuntilTimesince)
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pongo2.RegisterFilter("intcomma", filterIntcomma)
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}
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func filterMarkdown(in *pongo2.Value, param *pongo2.Value) (*pongo2.Value, error) {
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return pongo2.AsValue(string(blackfriday.MarkdownCommon([]byte(in.String())))), nil
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}
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func filterSlugify(in *pongo2.Value, param *pongo2.Value) (*pongo2.Value, error) {
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return pongo2.AsValue(slug.Slug(in.String())), nil
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}
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func filterFilesizeformat(in *pongo2.Value, param *pongo2.Value) (*pongo2.Value, error) {
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return pongo2.AsValue(humanize.IBytes(uint64(in.Integer()))), nil
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}
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func filterTimeuntilTimesince(in *pongo2.Value, param *pongo2.Value) (*pongo2.Value, error) {
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basetime, is_time := in.Interface().(time.Time)
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if !is_time {
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return nil, errors.New("timeuntil-value is not a time.Time-instance.")
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}
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var paramtime time.Time
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if !param.IsNil() {
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paramtime, is_time = param.Interface().(time.Time)
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if !is_time {
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return nil, errors.New("timeuntil-parameter is not a time.Time-instance.")
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}
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} else {
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paramtime = time.Now()
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}
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return pongo2.AsValue(humanize.TimeDuration(basetime.Sub(paramtime))), nil
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}
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func filterIntcomma(in *pongo2.Value, param *pongo2.Value) (*pongo2.Value, error) {
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return pongo2.AsValue(humanize.Comma(int64(in.Integer()))), nil
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}
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