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ferret/pkg/stdlib/html/inner_text.go

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package html
import (
"context"
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"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
"github.com/MontFerret/ferret/pkg/runtime/values/types"
)
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// InnerText returns inner text string of a given or matched by CSS selector element
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// @param doc (HTMLDocument|HTMLElement) - Parent document or element.
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// @param selector (String, optional) - String of CSS selector.
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// @returns (String) - Inner text if an element found, otherwise empty string.
func InnerText(ctx context.Context, args ...core.Value) (core.Value, error) {
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err := core.ValidateArgs(args, 1, 2)
if err != nil {
return values.EmptyString, err
}
el, err := resolveElement(args[0])
if err != nil {
return values.None, err
}
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if len(args) == 1 {
return el.InnerText(ctx), nil
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}
err = core.ValidateType(args[1], types.String)
if err != nil {
return values.None, err
}
selector := args[1].(values.String)
return el.InnerTextBySelector(ctx, selector), nil
}