Use .error_position() instead of .buffer_position() in examples where error position is reported

`.error_position()` is intended to report position where error start occurring,
`.buffer_position()` is intended to show to what position reader read data

tests/issues.rs leave untouched because this is the code from real problems in GH issues,
it should remain as close to issue as possible

Author: Mingun

README.md

@@ -40,7 +40,7 @@ loop {
     // when the input is a &str or a &[u8], we don't actually need to use another
     // buffer, we could directly call `reader.read_event()`
     match reader.read_event_into(&mut buf) {
-        Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
+        Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
         // exits the loop when reaching end of file
         Ok(Event::Eof) => break,
 
@@ -98,7 +98,7 @@ loop {
         Ok(Event::Eof) => break,
         // we can either move or borrow the event to write, depending on your use-case
         Ok(e) => assert!(writer.write_event(e).is_ok()),
-        Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
+        Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
     }
 }
 

examples/custom_entities.rs

@@ -68,7 +68,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
                 );
             }
             Ok(Event::Eof) => break,
-            Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
+            Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
             _ => (),
         }
     }

examples/read_buffered.rs

@@ -23,7 +23,7 @@ fn main() -> Result<(), quick_xml::Error> {
                 count += 1;
             }
             Ok(Event::Eof) => break, // exits the loop when reaching end of file
-            Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
+            Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
             _ => (), // There are several other `Event`s we do not consider here
         }
     }

examples/read_texts.rs

@@ -18,7 +18,7 @@ fn main() {
                 println!("{:?}", txt);
             }
             Ok(Event::Eof) => break, // exits the loop when reaching end of file
-            Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
+            Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
             _ => (), // There are several other `Event`s we do not consider here
         }
     }

src/reader/async_tokio.rs

@@ -58,7 +58,7 @@ impl<R: AsyncBufRead + Unpin> Reader<R> {
     ///     match reader.read_event_into_async(&mut buf).await {
     ///         Ok(Event::Start(_)) => count += 1,
     ///         Ok(Event::Text(e)) => txt.push(e.unescape().unwrap().into_owned()),
-    ///         Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
+    ///         Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
     ///         Ok(Event::Eof) => break,
     ///         _ => (),
     ///     }

src/reader/buffered_reader.rs

@@ -328,7 +328,7 @@ impl<R: BufRead> Reader<R> {
     ///     match reader.read_event_into(&mut buf) {
     ///         Ok(Event::Start(_)) => count += 1,
     ///         Ok(Event::Text(e)) => txt.push(e.unescape().unwrap().into_owned()),
-    ///         Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
+    ///         Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
     ///         Ok(Event::Eof) => break,
     ///         _ => (),
     ///     }

src/reader/mod.rs

@@ -589,7 +589,7 @@ impl EncodingRef {
 ///     // when the input is a &str or a &[u8], we don't actually need to use another
 ///     // buffer, we could directly call `reader.read_event()`
 ///     match reader.read_event_into(&mut buf) {
-///         Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
+///         Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
 ///         // exits the loop when reaching end of file
 ///         Ok(Event::Eof) => break,
 ///

src/writer.rs

@@ -52,7 +52,7 @@ use {crate::de::DeError, serde::Serialize};
 ///         Ok(Event::Eof) => break,
 ///         // we can either move or borrow the event to write, depending on your use-case
 ///         Ok(e) => assert!(writer.write_event(e.borrow()).is_ok()),
-///         Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
+///         Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
 ///     }
 /// }
 ///

tests/reader.rs

@@ -175,15 +175,15 @@ fn test_escaped_content() {
                 Ok(c) => assert_eq!(c, "<test>"),
                 Err(e) => panic!(
                     "cannot escape content at position {}: {:?}",
-                    r.buffer_position(),
+                    r.error_position(),
                     e
                 ),
             }
         }
         Ok(e) => panic!("Expecting text event, got {:?}", e),
         Err(e) => panic!(
             "Cannot get next event at position {}: {:?}",
-            r.buffer_position(),
+            r.error_position(),
             e
         ),
     }