367 

   368 impl<T: AsRef<str>> From<T> for EdgeDescription {

   369     fn from(val: T) -> Self {

   370         use std::cmp::Ordering;

   371 

   372         let reversed = val.as_ref().chars().rev().collect::<String>();

   373 

   374         match val.as_ref().cmp(&reversed) {

   375             Ordering::Less => EdgeDescription {

   376                 name: val.as_ref().to_owned(),

   377                 symmetrical: Some(false),

   378                 reversed: Some(false),

   379             },

   380             Ordering::Equal => EdgeDescription {

   381                 name: reversed,

   382                 symmetrical: Some(true),

   383                 reversed: Some(false),

   384             },

   385             Ordering::Greater => EdgeDescription {

   386                 name: reversed,

   387                 symmetrical: Some(false),

   388                 reversed: Some(true),

   389             },

   390         }

   391     }

   392 }