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package http
import "strings"
// JoinPath returns an absolute URL path composed of the two paths provided.
// Enforces that the returned path begins with '/'. If added path is empty the
// returned path suffix will match the first parameter suffix.
func JoinPath(a, b string) string {
if len(a) == 0 {
a = "/"
} else if a[0] != '/' {
a = "/" + a
}
if len(b) != 0 && b[0] == '/' {
b = b[1:]
}
if len(b) != 0 && len(a) > 1 && a[len(a)-1] != '/' {
a = a + "/"
}
return a + b
}
// JoinRawQuery returns an absolute raw query expression. Any duplicate '&'
// will be collapsed to single separator between values.
func JoinRawQuery(a, b string) string {
a = strings.TrimFunc(a, isAmpersand)
b = strings.TrimFunc(b, isAmpersand)
if len(a) == 0 {
return b
}
if len(b) == 0 {
return a
}
return a + "&" + b
}
func isAmpersand(v rune) bool {
return v == '&'
}
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