To convert the string “ISO-8859-1 coding” from ISO-8859-1 encoding to UTF-16 encoding, we first need to understand the character encoding of each character in ISO-8859-1 and then convert it to its UTF-16 representation.
ISO-8859-1 is a single-byte encoding scheme that represents each character in 8 bits, covering most Western European languages.
Here’s the conversion:
- Character Mapping:
- “ISO-8859-1 coding” is:
- “I”, “S”, “O”, “-“, “8”, “8”, “5”, “9”, “-“, “1”, ” “, “c”, “o”, “d”, “i”, “n”, “g”
- These characters correspond to their respective Unicode code points.
- Conversion to UTF-16:
- UTF-16 represents characters using 16 bits.
- Most characters from ISO-8859-1 will have the same representation in UTF-16, as they fit within the basic multilingual plane (BMP).
- For each character, we represent it in UTF-16 by using either one or two 16-bit units (code units).
Let’s convert each character to its UTF-16 representation:
- “I”: U+0049
- “S”: U+0053
- “O”: U+004F
- “-“: U+002D
- “8”: U+0038
- “5”: U+0035
- “9”: U+0039
- “1”: U+0031
- ” “: U+0020
- “c”: U+0063
- “o”: U+006F
- “d”: U+0064
- “i”: U+0069
- “n”: U+006E
- “g”: U+0067
Since each of these characters can be represented within the BMP, their UTF-16 representation will consist of a single 16-bit unit.
UTF-16 Representation:
- “I” (U+0049) → 0049
- “S” (U+0053) → 0053
- “O” (U+004F) → 004F
- “-” (U+002D) → 002D
- “8” (U+0038) → 0038
- “5” (U+0035) → 0035
- “9” (U+0039) → 0039
- “1” (U+0031) → 0031
- ” ” (U+0020) → 0020
- “c” (U+0063) → 0063
- “o” (U+006F) → 006F
- “d” (U+0064) → 0064
- “i” (U+0069) → 0069
- “n” (U+006E) → 006E
- “g” (U+0067) → 0067
Concatenating these UTF-16 representations, we get:
[ \text{UTF-16:} \quad 0049 \, 0053 \, 004F \, 002D \, 0038 \, 0035 \, 0039 \, 0031 \, 0020 \, 0063 \, 006F \, 0064 \, 0069 \, 006E \, 0067 ]
So, the UTF-16 representation of the string “ISO-8859-1 coding” is ( \text{0049} \, \text{0053} \, \text{004F} \, \text{002D} \, \text{0038} \, \text{0035} \, \text{0039} \, \text{0031} \, \text{0020} \, \text{0063} \, \text{006F} \, \text{0064} \, \text{0069} \, \text{006E} \, \text{0067} ).