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The grapheme boundaries of "🇷🇸🇮🇴" should be 8 and 16, but by feedingGraphemeCursor the individual RIS codepoints I get 8 and 12. Am I using the API incorrectly or is this a bug?
use unicode_segmentation::{GraphemeCursor,GraphemeIncomplete};fnmain(){let s ="🇷🇸🇮🇴";letmut cursor =GraphemeCursor::new(0, s.len(),true);// 🇷🇸match cursor.next_boundary("🇷",0){Err(GraphemeIncomplete::NextChunk) =>{} _ =>unreachable!(),}match cursor.next_boundary("🇸",4){Err(GraphemeIncomplete::PreContext(4)) =>{ cursor.provide_context("🇷",0);} _ =>unreachable!(),}match cursor.next_boundary("🇸",4){Err(GraphemeIncomplete::NextChunk) =>{} _ =>unreachable!(),}match cursor.next_boundary("🇮",8){Err(GraphemeIncomplete::PreContext(8)) =>{ cursor.provide_context("🇸",4);} _ =>unreachable!(),}match cursor.next_boundary("🇮",8){Err(GraphemeIncomplete::PreContext(4)) =>{ cursor.provide_context("🇷",0);} _ =>unreachable!(),}match cursor.next_boundary("🇮",8){Ok(Some(8)) =>{} _ =>unreachable!(),}// 🇮🇴match cursor.next_boundary("🇮",8){Err(GraphemeIncomplete::NextChunk) =>{} _ =>unreachable!(),}match cursor.next_boundary("🇴",12){Err(GraphemeIncomplete::PreContext(12)) =>{ cursor.provide_context("🇮",8);} _ =>unreachable!(),}match cursor.next_boundary("🇴",12){Err(GraphemeIncomplete::PreContext(8)) =>{ cursor.provide_context("🇸",4);} _ =>unreachable!(),}match cursor.next_boundary("🇴",12){Err(GraphemeIncomplete::PreContext(4)) =>{ cursor.provide_context("🇷",0);} _ =>unreachable!(),}match cursor.next_boundary("🇴",12){Ok(Some(16)) =>{}Ok(Some(12)) =>panic!("this should be 16"), _ =>unreachable!(),}}
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