From 817aa55011d9d685930fd59a42df807d8ba9b2c2 Mon Sep 17 00:00:00 2001
From: Clecio Jung
Date: Sun, 16 Apr 2023 10:05:54 -0300
Subject: Simplifying the usage of the API

---
 main.c | 114 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100644 main.c

(limited to 'main.c')

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..f2a63c6
--- /dev/null
+++ b/main.c
@@ -0,0 +1,114 @@
+#if 0
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+size_t strlen_utf8(const char *str) {
+    size_t len = 0;
+    for (; *str; str++) {
+        if ((*str & 0xc0) != 0x80) {
+            len++;
+        }
+    }
+    return len;
+}
+
+int main(void) {
+    // Read a encoded string from a file
+    FILE *fp = fopen("text.txt", "r,ccs=utf16le");
+    if (fp == NULL) {
+        perror("Error opening file");
+        return EXIT_FAILURE;
+    }
+    char str[4096];
+    if (fgets(str, sizeof(str), fp) == NULL) {
+        perror("Error in gets");
+        //return EXIT_FAILURE;
+    }
+    printf("strlen=%ld, strlen_utf8=%ld, str=%s\n", strlen(str), strlen_utf8(str), str);
+    return EXIT_SUCCESS;
+}
+#elif 1
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include <string.h>
+#include <locale.h>
+
+int main() {
+    // Set locale to support UTF-16LE encoding
+    char *local = setlocale(LC_ALL, "en_US.UTF-16");
+    if (local == NULL) {
+        perror("setlocale");
+        return EXIT_FAILURE;
+    }
+    printf("locale: %s\n", local);
+
+    FILE* file = fopen("text.txt", "rb");
+    if (file == NULL) {
+        perror("fopen");
+        return EXIT_FAILURE;
+    }
+    fseek(file, 0, SEEK_END);
+    int file_size = ftell(file);
+    fseek(file, 0, SEEK_SET);
+
+    // Allocate buffer for file contents
+    wchar_t* file_contents = malloc(file_size);
+    if (file_contents == NULL) {
+        perror("malloc");
+        return EXIT_FAILURE;
+    }
+
+    printf("file_size=%d\n", file_size);
+    // Read file contents
+    size_t bytes_read = fread(file_contents, 1, file_size, file);
+    printf("bytes_read=%ld\n", bytes_read);
+    if (bytes_read != file_size) {
+        printf("Error: Failed to read file\n");
+        return 1;
+    }
+
+    // Close file
+    fclose(file);
+
+    // Convert wide string to multibyte string in UTF-8 encoding
+    int buffer_size = wcstombs(NULL, file_contents, 0) + 1;
+    printf("buffer_size=%d\n", buffer_size);
+    char* buffer = malloc(buffer_size);
+
+    // Print multibyte string to console
+    printf("%s", buffer);
+
+    // Free buffers
+    free(file_contents);
+    free(buffer);
+
+    return 0;
+}
+
+#else
+
+/* wcstombs example */
+#include <stdio.h>      /* printf */
+#include <stdlib.h>     /* wcstombs, wchar_t(C) */
+#include <locale.h>
+
+int main() {
+  const wchar_t str[] = L"ç ~^ âãáà êẽéè õôóò";
+  char buffer[32];
+  int ret;
+
+    setlocale(LC_ALL, "");
+
+  printf ("wchar_t string: %ls \n",str);
+
+  ret = wcstombs ( buffer, str, sizeof(buffer) );
+  if (ret==32) buffer[31]='\0';
+  if (ret) printf ("multibyte string: %s \n",buffer);
+
+  return 0;
+}
+
+#endif
\ No newline at end of file
-- 
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