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43 lines
1.0 KiB
Go
43 lines
1.0 KiB
Go
package helpers
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import (
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"strings"
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"github.com/aymerick/raymond"
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"github.com/zk-org/zk/internal/core"
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"github.com/zk-org/zk/internal/util"
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)
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// NewStyleHelper creates a new template helper which stylizes the text input
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// according to predefined styling rules.
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//
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// {{style "date" created}}
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// {{#style "red"}}Hello, world{{/style}}
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func NewStyleHelper(styler core.Styler, logger util.Logger) interface{} {
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style := func(keys string, text string) string {
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rules := make([]core.Style, 0)
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for _, key := range strings.Fields(keys) {
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rules = append(rules, core.Style(key))
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}
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res, err := styler.Style(text, rules...)
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if err != nil {
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logger.Err(err)
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return text
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} else {
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return res
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}
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}
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return func(rules string, opt interface{}) string {
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switch arg := opt.(type) {
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case *raymond.Options:
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return style(rules, arg.Fn())
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case string:
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return style(rules, arg)
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default:
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logger.Printf("the {{style}} template helper is expecting a string as input, received: %v", opt)
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return ""
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}
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}
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}
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