diff options
| -rw-r--r-- | lib/js/urweb.js | 32 | ||||
| -rw-r--r-- | tests/utf8.ur | 25 |
2 files changed, 48 insertions, 9 deletions
diff --git a/lib/js/urweb.js b/lib/js/urweb.js index e28446e3..2b34f8dd 100644 --- a/lib/js/urweb.js +++ b/lib/js/urweb.js @@ -1462,23 +1462,41 @@ function s2b(s) { return s == "True" ? true : s == "False" ? false : null; } function s2be(s) { return s == "True" ? true : s == "False" ? false : er("Illegal Boolean " ^ s); } function id(x) { return x; } -function sub(s, i) { return Array.from(s)[i].codePointAt(0); } +function sub(s, i) { return Array.from(s)[i]; } function suf(s, i) { return Array.from(s).slice(i).join(""); } function slen(s) { return Array.from(s).length; } function sidx(s, ch) { - var r = s.indexOf(ch); + var r = Array.from(s).indexOf(ch); if (r == -1) return null; else return r; } function ssidx(h, n) { - var r = h.indexOf(n); - if (r == -1) - return null; - else - return r; + if (n == "") return 0; + var ah = Array.from(h); + var an = Array.from(n); + var i = 0, y = 0; + var top = ah.length - an.length + 1; + if (top < 0) top = 0; + var found = true; + + for(i = 0; i < top; ++i) { + found = true; + + for (y = 0; y < an.length; ++y) { + if (ah[i + y] != an[y]) { + found = false; + break; + } + } + + if (found) + return i; + } + return null; } + function sspn(s, chs) { for (var i = 0; i < s.length; ++i) if (chs.indexOf(s.charAt(i)) != -1) diff --git a/tests/utf8.ur b/tests/utf8.ur index cf781fa9..b1507285 100644 --- a/tests/utf8.ur +++ b/tests/utf8.ur @@ -46,8 +46,29 @@ fun highencode () : transaction page = {test_fn_cside (fn _ => strlen (substring "𝌆𝌇𝌈𝌉" 1 3)) (strlen (substring "𝌆𝌇𝌈𝌉" 1 3)) "high encode - strlen of substring 1"} {test_fn_cside (fn _ => strlen (substring "𝌆𝌇𝌈𝌉" 2 2)) (strlen (substring "𝌆𝌇𝌈𝌉" 2 2)) "high encode - strlen of substring 2"} {test_fn_cside (fn _ => strlen (substring "𝌆𝌇𝌈𝌉" 3 1)) (strlen (substring "𝌆𝌇𝌈𝌉" 3 1)) "high encode - strlen of substring 3"} - - </body> + + {test_fn_cside (fn _ => strsub "𝌆𝌇𝌈𝌉" 0) (strsub "𝌆𝌇𝌈𝌉" 0) "high encode - strsub 1"} + {test_fn_cside (fn _ => strsub "𝌆𝌇𝌈𝌉" 1) (strsub "𝌆𝌇𝌈𝌉" 1) "high encode - strsub 2"} + {test_fn_cside (fn _ => strsub "𝌆𝌇𝌈𝌉" 2) (strsub "𝌆𝌇𝌈𝌉" 2) "high encode - strsub 3"} + {test_fn_cside (fn _ => strsub "𝌆𝌇𝌈𝌉" 3) (strsub "𝌆𝌇𝌈𝌉" 3) "high encode - strsub 4"} + + {test_fn_cside (fn _ => strsuffix "𝌆𝌇𝌈𝌉" 0) (strsuffix "𝌆𝌇𝌈𝌉" 0) "high encode - strsuffix 1"} + {test_fn_cside (fn _ => strsuffix "𝌆𝌇𝌈𝌉" 1) (strsuffix "𝌆𝌇𝌈𝌉" 1) "high encode - strsuffix 2"} + {test_fn_cside (fn _ => strsuffix "𝌆𝌇𝌈𝌉" 2) (strsuffix "𝌆𝌇𝌈𝌉" 2) "high encode - strsuffix 3"} + {test_fn_cside (fn _ => strsuffix "𝌆𝌇𝌈𝌉" 3) (strsuffix "𝌆𝌇𝌈𝌉" 3) "high encode - strsuffix 4"} + + {test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" #"c") (strchr "𝌆𝌇𝌈𝌉" #"c") "high encode - strchr 1"} + {test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" (strsub "𝌆" 0)) (strchr "𝌆𝌇𝌈𝌉" (strsub "𝌆" 0)) "high encode - strchr 2"} + {test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" (strsub "𝌇" 0)) (strchr "𝌆𝌇𝌈𝌉" (strsub "𝌇" 0)) "high encode - strchr 3"} + {test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" (strsub "𝌈" 0)) (strchr "𝌆𝌇𝌈𝌉" (strsub "𝌈" 0)) "high encode - strchr 4"} + {test_fn_cside (fn _ => strchr "𝌆𝌇𝌈𝌉" (strsub "𝌉" 0)) (strchr "𝌆𝌇𝌈𝌉" (strsub "𝌉" 0)) "high encode - strchr 5"} + + {test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" #"c") (strindex "𝌆𝌇𝌈𝌉" #"c") "high encode - strindex 1"} + {test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" (strsub "𝌆" 0)) (strindex "𝌆𝌇𝌈𝌉" (strsub "𝌆" 0)) "high encode - strindex 2"} + {test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" (strsub "𝌇" 0)) (strindex "𝌆𝌇𝌈𝌉" (strsub "𝌇" 0)) "high encode - strindex 3"} + {test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" (strsub "𝌈" 0)) (strindex "𝌆𝌇𝌈𝌉" (strsub "𝌈" 0)) "high encode - strindex 4"} + {test_fn_cside (fn _ => strindex "𝌆𝌇𝌈𝌉" (strsub "𝌉" 0)) (strindex "𝌆𝌇𝌈𝌉" (strsub "𝌉" 0)) "high encode - strindex 5"} + </body> </xml> fun substrings () : transaction page = |