From 4c72e89f2ecb457a212b001bbaabd4c35ff77f82 Mon Sep 17 00:00:00 2001
From: davidovski <david@davidovski.xyz>
Date: Sat, 19 Mar 2022 23:04:41 +0000
Subject: proper support for unicode characters

---
 src/hbar.c   | 24 ++++++++++++++++++++----
 test/hbar.sh |  9 ++++++++-
 2 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/src/hbar.c b/src/hbar.c
index 2b55ed6..c0272b9 100644
--- a/src/hbar.c
+++ b/src/hbar.c
@@ -8,7 +8,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <unistr.h>
 #include <stdbool.h>
+#include <string.h>
 #include <getopt.h>
 
 #include "colors.h"
@@ -37,12 +39,27 @@ void human_format(int bytes, char *output) {
 size_t len(char *s) {
     size_t len = 0;
     for (; *s; s++) {
-        if ((*s & 0XC0) != 0x80) 
+        if ((*s & 0XC0) != 0x80) {
             len++;
+        }
     }
     return len;
 }
 
+void printat(char *s, size_t index) {
+    index++;
+    for (; *s; s++) {
+        if ((*s & 0XC0) != 0x80) {
+            index--;
+        }
+        if (index <= 0) {
+            fwrite(s, 1, 1, stdout);
+            if ((*s & 0XC0) == 0x80) 
+                return;
+        }
+    }
+}
+
 int main (int argc, char **argv) {
     struct winsize w;
     ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
@@ -136,9 +153,9 @@ int main (int argc, char **argv) {
         }
 
         if (text && i < len(text)) {
-            printf("%c", text[i]);
+            printat(text, i);
         } else if (i + 1 > width - len(count)) {
-            printf("%c", count[i - width + len(count)]);
+            printat(count, i - width + len(count));
         } else {
             printf(" ");
         }
@@ -151,7 +168,6 @@ int main (int argc, char **argv) {
         printf(RESET "\n");
     }
 
-
     return 0;
 }
 
diff --git a/test/hbar.sh b/test/hbar.sh
index 9daf606..8d47595 100755
--- a/test/hbar.sh
+++ b/test/hbar.sh
@@ -1,10 +1,17 @@
 #!/bin/sh
 
 HBAR=./bin/hbar
-TEXT="Hello there"
+#TEXT="Hello there"
+TEXT="Привет мир"
 UNIT="mb"
 MAX=100
 
+for x in $(seq $MAX); do
+    ${HBAR} -T "${TEXT}" -u ${UNIT} $x $MAX
+    read
+done
+${HBAR} -t -T "${TEXT}" -u ${UNIT} $x $MAX
+
 for x in $(seq $MAX); do
     ${HBAR} -T "${TEXT}" -u ${UNIT} $x $MAX
     sleep 0.01
-- 
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