CDE

Task/Binary-strings/D/binary-strings.d

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+import std.array: empty;
+import std.string: replace;
+
+void main() {
+    // String creation (destruction is usually handled by
+    // the garbage collector)
+    ubyte[] str1;
+
+    // String assignments
+    str1 = cast(ubyte[])"blah";
+    // hex string, same as "\x00\xFB\xCD\x32\xFD\x0A"
+    // whitespace and newlines are ignored
+    str1 = cast(ubyte[])x"00 FBCD 32FD 0A";
+
+    // String comparison
+    ubyte[] str2;
+    if (str1 == str2) {} // strings equal
+
+    // String cloning and copying
+    str2 = str1.dup; // copy entire string or array
+
+    // Check if a string is empty
+    if (str1.empty) {} // string empty
+    if (str1.length) {} // string not empty
+    if (!str1.length) {} // string empty
+
+    // Append a ubyte to a string
+    str1 ~= x"0A";
+    str1 ~= 'a';
+
+    // Extract a substring from a string
+    str1 = cast(ubyte[])"blork";
+    // this takes off the first and last bytes and
+    // assigns them to the new ubyte string
+    // This is just a light slice, no string data copied
+    ubyte[] substr = str1[1 .. $-1];
+
+    // Replace every occurrence of a ubyte (or a string)
+    // in a string with another string
+    str1 = cast(ubyte[])"blah";
+    replace(cast(char[])str1, "la", "al");
+
+    // Join strings
+    ubyte[] str3 = str1 ~ str2;
+}