Shotnest · Library
Find a full-width Latin code
The query abc12 finds Code ＡＢＣ12 because Shotnest shifts full-width Latin letters and digits (U+FF01 to U+FF5E) back to ordinary width before comparing.
How full-width characters are mapped
East Asian fonts and some apps display Latin letters and digits in full-width forms such as ＡＢＣ１２. They look like ordinary characters but have different code points, from U+FF01 to U+FF5E. Shotnest's normalization subtracts a fixed offset from every character in that range, which turns Ａ into A, then lowercases the result. The ideographic space U+3000 is replaced with an ordinary space at the same step.
Because the mapping runs on both the record and the query, it does not matter which width you type. A query typed in ordinary letters finds the full-width code, and in the app a query typed with a Japanese keyboard in full-width mode finds the same screenshot.
Full-width punctuation sits in the same block, so the full-width hyphen, colon and brackets are converted as well. A code shown as ＡＢ－１２ is searched as ab-12.
Try the original example
- Supplied records
- Code ＡＢＣ12 — Code XYZ99
- Query
- abc12
- Matching record numbers
- 1
Find a code you saw in an Asian-language screen
- Type the code with an ordinary keyboard; capital letters are not needed.
- Check the returned record: here only 1, because Code XYZ99 shares no part of abc12.
- Copy the code from the original text or image when the exact width matters, for example in a form that rejects full-width digits.
- If no result appears, search the digits alone.
- ＡＢＣ１２ after normalization
- abc12
- Query ＡＢＣ12 in the Shotnest app
- record 1
Look-alikes that are not mapped
- Half-width katakana such as ｱ stays as it is; only the full-width Latin and punctuation block is shifted.
- Cyrillic А looks like Latin A but is a different letter, so a code read with one will not match a query typed with the other.
- Superscript digits and circled numbers are not converted to plain digits.
- Copying a full-width code into a form that accepts only ordinary characters; Copy text keeps the characters exactly as they were recognised.
- Searching a code that contains an ideographic space without typing a space; the search tool keeps the space in the phrase, so type it or search each part.
Width is folded, typography is not checked
A match means the characters agree after a fixed width shift. It does not confirm which form the original document uses, so keep the screenshot when you need to reproduce the code exactly.