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openurl.go
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openurl.go
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package contentcmds
import (
"context"
"fmt"
"net/url"
"strings"
"unicode"
"github.com/jmigpin/editor/v2/core"
"github.com/jmigpin/editor/v2/util/iout/iorw"
"github.com/jmigpin/editor/v2/util/osutil"
"github.com/jmigpin/editor/v2/util/parseutil"
)
// Opens url lines in preferred application.
func OpenURL(ctx context.Context, erow *core.ERow, index int) (error, bool) {
ta := erow.Row.TextArea
//TODO: handle "//http://www" (detect "http" start?)
isHttpRune := func(ru rune) bool {
extra := parseutil.RunesExcept(parseutil.ExtraRunes, " []()<>")
return unicode.IsLetter(ru) || unicode.IsDigit(ru) ||
strings.ContainsRune(extra, ru)
}
rd := iorw.NewLimitedReaderAtPad(ta.RW(), index, index, 1000)
l, r := parseutil.ExpandIndexesEscape(rd, index, false, isHttpRune, osutil.EscapeRune)
b, err := rd.ReadFastAt(l, r-l)
if err != nil {
return err, false // not handled
}
str := string(b)
u, err := url.Parse(str)
if err != nil {
return err, false
}
// accepted schemes
switch u.Scheme {
case "http", "https", "ftp", "mailto":
// ok
default:
err := fmt.Errorf("unsupported scheme: %v", u.Scheme)
return err, false
}
ustr := u.String()
if err := osutil.OpenBrowser(ustr); err != nil {
return err, true
}
return nil, true
}