{"schema":"cpc-unicode-exact-v1","unicodeVersion":"18.0.0","purpose":"general","citation":"Do not invent a platform-support claim from this data.","missingDoesNotMeanUnassigned":true,"visibilityMethod":"Class uses scalar ranges, then the runtime's Unicode property escapes for marks and format characters. Age comes from DerivedAge when the age table loads. previewFont is this site's bundled cmap only. destination is not-tested.","localFontMethod":"cmap membership and any HarfBuzz result are for these two bundled fonts only. A fixture miss is not destination coverage. A scalar absent from fixtures was not measured.","text":"１","characters":[{"codepoint":"U+FF11","name":"FULLWIDTH DIGIT ONE","group":"Halfwidth and Fullwidth Forms","inReference":true,"displayLabel":"１","validScalar":true,"warnings":["compatibility-equivalent"],"explanations":[{"id":"compatibility-equivalent","title":"Fullwidth digit and an ASCII digit","behavior":"U+FF11 has a compatibility decomposition to U+0031. NFKC folds it to the ASCII digit. NFC leaves U+FF11 in place.","limitation":"Compatibility equivalence is not canonical equivalence. NFKC also folds other compatibility characters, so it is not a general cleaner. Destination acceptance was not tested.","fix":"Use U+0031 when an ASCII digit is required. Keep U+FF11 when the fullwidth form is the text.","source":"https://www.unicode.org/reports/tr44/","alternatives":[{"value":"1","reason":"ASCII digit one","tradeoff":"Drops the fullwidth form. Running NFKC on a longer string can change more than this digit."}],"evidenceTier":"standards-informed-editorial","evidence":{"behavior":"standards-informed","compatibility":"not-tested","repair":"editorial-guidance"}}],"formats":{"codepoint":"U+FF11","htmlDecimal":"１","htmlHex":"１","cssEscape":"\\FF11 ","javascriptEscape":"\\uFF11"},"visibility":{"class":"assigned-or-unknown","ifMissingGlyph":"If you see a hollow box, a hex box, or a boxed question mark, that is the font's missing-glyph sign. It is not a separate character, it is not proof the scalar is unassigned, and it is not U+FFFD unless this string contains U+FFFD. Destination font, firmware, and app were not tested.","age":"1.1","ageSource":"DerivedAge","previewFont":null,"destination":"not-tested"},"localFont":{"evidenceTier":"measured-local","destination":"not-tested","cmap":{"NotoSansMath-Regular.ttf":false,"NotoSansSymbols2-Regular.ttf":false},"shaping":{"NotoSansMath-Regular.ttf":{"status":"not-run","reason":"This scalar is a cmap fixture, not a shaping string."},"NotoSansSymbols2-Regular.ttf":{"status":"not-run","reason":"This scalar is a cmap fixture, not a shaping string."}}},"confusables":{"inTable":true,"evidenceTier":"uts39-confusable-skeleton","destination":"not-tested","skeleton":["U+006C"],"others":["U+0031","U+0049","U+006C","U+007C","U+0196","U+01C0","U+0399","U+0406"],"othersRemaining":107}}],"graphemes":{"status":"available","method":"runtime-intl-segmenter","unicodeDataVersion":"runtime-unknown","count":1,"segments":[{"text":"１","utf16Offset":0,"codepoints":["U+FF11"]}]},"normalization":{"method":"runtime-string-normalize","unicodeDataVersion":"runtime-unknown","forms":{"NFC":{"changed":false,"result":null},"NFD":{"changed":false,"result":null},"NFKC":{"changed":true,"result":"1"},"NFKD":{"changed":true,"result":"1"}}},"targetCompatibility":{"status":"unknown","evidenceTier":"not-tested","purpose":"general","explanation":"No OS, font, browser, application, field policy or rendering engine was tested. Unicode validity and segmentation do not establish actual display or acceptance."},"sources":{"bidi":"https://www.unicode.org/reports/tr9/","breaks":"https://www.unicode.org/reports/tr14/","normalization":"https://www.unicode.org/reports/tr15/","graphemes":"https://www.unicode.org/reports/tr29/","emoji":"https://www.unicode.org/reports/tr51/","ucd":"https://www.unicode.org/reports/tr44/"}}