Code tidy-up

src/oned/mod.rs

@@ -91,3 +91,6 @@ pub use ean_8_writer::*;
 
 mod upc_e_writer;
 pub use upc_e_writer::*;
+
+mod telepen_common;
+pub use telepen_common::*;

src/oned/telepen_common.rs

@@ -0,0 +1,20 @@
+pub struct TelepenCommon;
+
+impl TelepenCommon {
+    pub fn calculate_checksum(contents: &str) -> char {
+        let mut sum = 0;
+
+        for c in contents.chars() {
+            sum += c as u32;
+        }
+
+        let remainder = sum % 127;
+        let diff = 127 - remainder;
+        return if diff != 127 {
+            diff as u8 as char
+        }
+        else {
+            0 as char
+        };
+    }
+}

src/oned/telepen_reader.rs

@@ -20,6 +20,7 @@ use crate::common::{BitArray, Result};
 use crate::Exceptions;
 use crate::RXingResult;
 use crate::{point_f, BarcodeFormat};
+use crate::oned::telepen_common::TelepenCommon;
 use bit_reverse::ParallelReverse;
 
 use super::OneDReader;
@@ -48,7 +49,7 @@ impl Default for TelepenReader {
 impl OneDReader for TelepenReader {
     fn decode_row(
         &mut self,
-        _rowNumber: u32,
+        rowNumber: u32,
         row: &crate::common::BitArray,
         _hints: &crate::DecodingHintDictionary,
     ) -> Result<crate::RXingResult> {
@@ -218,34 +219,32 @@ impl OneDReader for TelepenReader {
         // Penultimate byte is a block check character.
         let check = bytes[byteLength - 2];
 
-        // Calculate the checksum character
-        let mut sum = 0;
-
-        for c in contentString.chars() {
-            sum += c as u32;
-        }
-
-        let remainder = sum % 127;
-        let diff = 127 - remainder;
-        let checksum = if diff != 127 {
-            diff as u8 as char
-        }
-        else {
-            0 as char
-        };
+        let checksum = TelepenCommon::calculate_checksum(&contentString);
         
         // Validate checksum
         if check != checksum as u8 {
             return Err(Exceptions::NOT_FOUND);
         }
 
+        let mut runningCount = 0;
+        runningCount += self.counters.iter().take(startOffset).sum::<u32>();
+        let left: f32 = runningCount as f32;
+
+        runningCount += self
+            .counters
+            .iter()
+            .skip(startOffset)
+            .take(self.counterLength - startOffset - end)
+            .sum::<u32>();
+
+        let right: f32 = runningCount as f32;
+
         let mut result = RXingResult::new(
             &contentString,
             bytes,
             vec![
-                // TODO: populate with real numbers
-                point_f(0 as f32, 0 as f32),
-                point_f(0 as f32, 0 as f32),
+                point_f(left, rowNumber as f32),
+                point_f(right, rowNumber as f32),
             ],
             BarcodeFormat::TELEPEN,
         );

src/oned/telepen_writer.rs

@@ -18,6 +18,7 @@ use rxing_one_d_proc_derive::OneDWriter;
 use regex::Regex;
 use crate::common::Result;
 use crate::BarcodeFormat;
+use crate::oned::telepen_common::TelepenCommon;
 
 use super::OneDimensionalCodeWriter;
 
@@ -32,77 +33,30 @@ pub struct TelepenWriter;
 impl OneDimensionalCodeWriter for TelepenWriter {
     fn encode_oned(&self, contents: &str) -> Result<Vec<bool>> {
         // Calculate the checksum character
-        let mut sum = 0;
-
-        for c in contents.chars() {
-            sum += c as u32;
-        }
-
-        let remainder = sum % 127;
-        let diff = 127 - remainder;
-        let checksum = if diff != 127 {
-            diff as u8 as char
-        }
-        else {
-            0 as char
-        };
+        let checksum = TelepenCommon::calculate_checksum(contents);
         
         // Build binary string
         let mut binary = String::new();
 
         // Opening character is always _
-        let mut byte = "_".as_bytes()[0];
-        let mut bits = self.get_bits(byte);
-        
-        for i in 0..8 {
-            binary.push(if bits[i] {
-                '1'
-            }
-            else {
-                '0'
-            });
-        }
+        binary = self.add_to_binary('_', binary);
 
         // Content
-        for index in 0..contents.chars().count() {
-            byte = contents.chars().nth(index).unwrap() as u8;
-            bits = self.get_bits(byte);
-            
-            for i in 0..8 {
-                binary.push(if bits[i] {
-                    '1'
-                }
-                else {
-                    '0'
-                });
+        for c in contents.chars() {
+            if c as u8 > 127 {
+                return Err(Exceptions::illegal_argument_with(format!(
+                    "Telepen only supports ASCII characters."
+                )));
             }
+
+            binary = self.add_to_binary(c, binary)
         }
 
         // Checksum
-        byte = checksum as u8;
-        bits = self.get_bits(byte);
-        
-        for i in 0..8 {
-            binary.push(if bits[i] {
-                '1'
-            }
-            else {
-                '0'
-            });
-        }
+        binary = self.add_to_binary(checksum, binary);
 
         // Closing character is always z.
-        byte = "z".as_bytes()[0];
-        bits = self.get_bits(byte);
-        
-        for i in 0..8 {
-            binary.push(if bits[i] {
-                '1'
-            }
-            else {
-                '0'
-            });
-        }
+        binary = self.add_to_binary('z', binary);
 
         let re = Regex::new(r"^01|10$|01*0|00|1").unwrap();
         let matches: Vec<&str> = re.find_iter(&binary).map(|m| m.as_str()).collect();
@@ -214,6 +168,22 @@ impl TelepenWriter {
 
         return bits;
     }
+
+    fn add_to_binary(&self, c: char, mut binary: String) -> String {
+        let byte = c as u8;
+        let bits = self.get_bits(byte);
+        
+        for i in 0..8 {
+            binary.push(if bits[i] {
+                '1'
+            }
+            else {
+                '0'
+            });
+        }
+
+        return binary;
+    }
 }
 
 /**