@nimbus-dev/sdk - npm Package Compare versions

Comparing version 1.27.0 to 1.27.1

dist/jmap-fastmail/index.d.ts.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../../src/jmap-fastmail/index.ts"],"names":[],"mappings":"AAEA;;;;;;;;;;;;;;;;;;;;GAoBG;AAEH;;;;GAIG;AACH,eAAO,MAAM,eAAe,8BAA8B,CAAC;AAC3D,eAAO,MAAM,eAAe,8BAA8B,CAAC;AAC3D,eAAO,MAAM,qBAAqB,oCAAoC,CAAC;AAEvE,+EAA+E;AAC/E,eAAO,MAAM,oBAAoB,OAAO,CAAC;AACzC,mEAAmE;AACnE,eAAO,MAAM,iBAAiB,OAAO,CAAC;AAEtC,sFAAsF;AACtF,eAAO,MAAM,gBAAgB,EAAE,SAAS,MAAM,EAgB7C,CAAC;AAEF,yEAAyE;AACzE,MAAM,WAAW,kBAAkB;IACjC,QAAQ,CAAC,IAAI,EAAE,MAAM,GAAG,IAAI,CAAC;IAC7B,QAAQ,CAAC,SAAS,EAAE,MAAM,GAAG,IAAI,CAAC;IAClC,QAAQ,CAAC,QAAQ,EAAE,MAAM,GAAG,IAAI,CAAC;CAClC;AAED;;;;GAIG;AACH,MAAM,WAAW,aAAa;IAC5B,QAAQ,CAAC,EAAE,EAAE,MAAM,CAAC;IACpB,QAAQ,CAAC,SAAS,EAAE,MAAM,GAAG,IAAI,CAAC;IAClC,QAAQ,CAAC,OAAO,EAAE,MAAM,GAAG,IAAI,CAAC;IAChC,QAAQ,CAAC,IAAI,EAAE,SAAS,MAAM,EAAE,CAAC;IACjC,QAAQ,CAAC,EAAE,EAAE,SAAS,MAAM,EAAE,CAAC;IAC/B,QAAQ,CAAC,EAAE,EAAE,SAAS,MAAM,EAAE,CAAC;IAC/B,QAAQ,CAAC,UAAU,EAAE,MAAM,GAAG,IAAI,CAAC;IACnC,QAAQ,CAAC,WAAW,EAAE,SAAS,kBAAkB,EAAE,CAAC;IACpD,QAAQ,CAAC,OAAO,EAAE,MAAM,CAAC;CAC1B;AAED,uEAAuE;AACvE,MAAM,WAAW,WAAW;IAC1B,QAAQ,CAAC,MAAM,EAAE,MAAM,CAAC;IACxB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;CAC5B;AAED,wBAAgB,QAAQ,CAAC,CAAC,EAAE,OAAO,GAAG,MAAM,CAAC,MAAM,EAAE,OAAO,CAAC,GAAG,IAAI,CAInE;AAED,wBAAgB,QAAQ,CAAC,CAAC,EAAE,OAAO,GAAG,MAAM,GAAG,IAAI,CAElD;AAED,+EAA+E;AAC/E,wBAAgB,YAAY,CAAC,MAAM,EAAE,OAAO,GAAG,WAAW,GAAG,IAAI,CAYhE;AAED;;;;;;;;GAQG;AACH,wBAAgB,cAAc,CAAC,SAAS,EAAE,MAAM,EAAE,WAAW,EAAE,MAAM,GAAG,MAAM,CAgB7E;AAED,qFAAqF;AACrF,wBAAgB,aAAa,CAAC,CAAC,EAAE,OAAO,GAAG,MAAM,CAWhD;AAED,wBAAgB,eAAe,CAAC,CAAC,EAAE,OAAO,GAAG,MAAM,EAAE,CAEpD;AAED,wBAAgB,kBAAkB,CAAC,CAAC,EAAE,OAAO,GAAG,kBAAkB,EAAE,CAanE;AAED,wBAAgB,UAAU,CAAC,IAAI,EAAE,MAAM,GAAG,MAAM,CAU/C;AAED;;;;GAIG;AACH,wBAAgB,UAAU,CAAC,GAAG,EAAE,MAAM,CAAC,MAAM,EAAE,OAAO,CAAC,GAAG,MAAM,CAe/D;AAED,oFAAoF;AACpF,wBAAgB,SAAS,CAAC,GAAG,EAAE,OAAO,GAAG,aAAa,GAAG,IAAI,CAsB5D;AA2DD,wFAAwF;AACxF,wBAAgB,gBAAgB,CAAC,SAAS,EAAE,MAAM,EAAE,KAAK,EAAE,MAAM,GAAG,OAAO,CAE1E;AAED,iFAAiF;AACjF,wBAAgB,kBAAkB,CAAC,SAAS,EAAE,MAAM,EAAE,KAAK,EAAE,MAAM,EAAE,KAAK,EAAE,MAAM,GAAG,OAAO,CAE3F;AAED,iDAAiD;AACjD,wBAAgB,eAAe,CAAC,SAAS,EAAE,MAAM,EAAE,EAAE,EAAE,MAAM,GAAG,OAAO,CAKtE;AAED,4FAA4F;AAC5F,wBAAgB,kBAAkB,CAChC,MAAM,EAAE,OAAO,EACf,UAAU,EAAE,MAAM,GACjB,MAAM,CAAC,MAAM,EAAE,OAAO,CAAC,GAAG,IAAI,CAWhC;AAED,kFAAkF;AAClF,wBAAgB,gBAAgB,CAAC,MAAM,EAAE,OAAO,GAAG,OAAO,EAAE,CAI3D"}
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../../src/jmap-fastmail/index.ts"],"names":[],"mappings":"AAEA;;;;;;;;;;;;;;;;;;;;GAoBG;AAEH;;;;GAIG;AACH,eAAO,MAAM,eAAe,8BAA8B,CAAC;AAC3D,eAAO,MAAM,eAAe,8BAA8B,CAAC;AAC3D,eAAO,MAAM,qBAAqB,oCAAoC,CAAC;AAEvE,+EAA+E;AAC/E,eAAO,MAAM,oBAAoB,OAAO,CAAC;AACzC,mEAAmE;AACnE,eAAO,MAAM,iBAAiB,OAAO,CAAC;AAEtC,sFAAsF;AACtF,eAAO,MAAM,gBAAgB,EAAE,SAAS,MAAM,EAgB7C,CAAC;AAEF,yEAAyE;AACzE,MAAM,WAAW,kBAAkB;IACjC,QAAQ,CAAC,IAAI,EAAE,MAAM,GAAG,IAAI,CAAC;IAC7B,QAAQ,CAAC,SAAS,EAAE,MAAM,GAAG,IAAI,CAAC;IAClC,QAAQ,CAAC,QAAQ,EAAE,MAAM,GAAG,IAAI,CAAC;CAClC;AAED;;;;GAIG;AACH,MAAM,WAAW,aAAa;IAC5B,QAAQ,CAAC,EAAE,EAAE,MAAM,CAAC;IACpB,QAAQ,CAAC,SAAS,EAAE,MAAM,GAAG,IAAI,CAAC;IAClC,QAAQ,CAAC,OAAO,EAAE,MAAM,GAAG,IAAI,CAAC;IAChC,QAAQ,CAAC,IAAI,EAAE,SAAS,MAAM,EAAE,CAAC;IACjC,QAAQ,CAAC,EAAE,EAAE,SAAS,MAAM,EAAE,CAAC;IAC/B,QAAQ,CAAC,EAAE,EAAE,SAAS,MAAM,EAAE,CAAC;IAC/B,QAAQ,CAAC,UAAU,EAAE,MAAM,GAAG,IAAI,CAAC;IACnC,QAAQ,CAAC,WAAW,EAAE,SAAS,kBAAkB,EAAE,CAAC;IACpD,QAAQ,CAAC,OAAO,EAAE,MAAM,CAAC;CAC1B;AAED,uEAAuE;AACvE,MAAM,WAAW,WAAW;IAC1B,QAAQ,CAAC,MAAM,EAAE,MAAM,CAAC;IACxB,QAAQ,CAAC,SAAS,EAAE,MAAM,CAAC;CAC5B;AAED,wBAAgB,QAAQ,CAAC,CAAC,EAAE,OAAO,GAAG,MAAM,CAAC,MAAM,EAAE,OAAO,CAAC,GAAG,IAAI,CAInE;AAED,wBAAgB,QAAQ,CAAC,CAAC,EAAE,OAAO,GAAG,MAAM,GAAG,IAAI,CAElD;AAED,+EAA+E;AAC/E,wBAAgB,YAAY,CAAC,MAAM,EAAE,OAAO,GAAG,WAAW,GAAG,IAAI,CAYhE;AAED;;;;;;;;GAQG;AACH,wBAAgB,cAAc,CAAC,SAAS,EAAE,MAAM,EAAE,WAAW,EAAE,MAAM,GAAG,MAAM,CAgB7E;AAED,qFAAqF;AACrF,wBAAgB,aAAa,CAAC,CAAC,EAAE,OAAO,GAAG,MAAM,CAWhD;AAED,wBAAgB,eAAe,CAAC,CAAC,EAAE,OAAO,GAAG,MAAM,EAAE,CAEpD;AAED,wBAAgB,kBAAkB,CAAC,CAAC,EAAE,OAAO,GAAG,kBAAkB,EAAE,CAanE;AAED,wBAAgB,UAAU,CAAC,IAAI,EAAE,MAAM,GAAG,MAAM,CAwB/C;AAED;;;;GAIG;AACH,wBAAgB,UAAU,CAAC,GAAG,EAAE,MAAM,CAAC,MAAM,EAAE,OAAO,CAAC,GAAG,MAAM,CAe/D;AAED,oFAAoF;AACpF,wBAAgB,SAAS,CAAC,GAAG,EAAE,OAAO,GAAG,aAAa,GAAG,IAAI,CAsB5D;AA2DD,wFAAwF;AACxF,wBAAgB,gBAAgB,CAAC,SAAS,EAAE,MAAM,EAAE,KAAK,EAAE,MAAM,GAAG,OAAO,CAE1E;AAED,iFAAiF;AACjF,wBAAgB,kBAAkB,CAAC,SAAS,EAAE,MAAM,EAAE,KAAK,EAAE,MAAM,EAAE,KAAK,EAAE,MAAM,GAAG,OAAO,CAE3F;AAED,iDAAiD;AACjD,wBAAgB,eAAe,CAAC,SAAS,EAAE,MAAM,EAAE,EAAE,EAAE,MAAM,GAAG,OAAO,CAKtE;AAED,4FAA4F;AAC5F,wBAAgB,kBAAkB,CAChC,MAAM,EAAE,OAAO,EACf,UAAU,EAAE,MAAM,GACjB,MAAM,CAAC,MAAM,EAAE,OAAO,CAAC,GAAG,IAAI,CAWhC;AAED,kFAAkF;AAClF,wBAAgB,gBAAgB,CAAC,MAAM,EAAE,OAAO,GAAG,OAAO,EAAE,CAI3D"}

dist/jmap-fastmail/index.js

@@ -137,4 +137,18 @@ import { trim } from "../internal/whitespace.js";
         .replace(/\n{2,}/g, "\n"));
-    return normalized.length > PREVIEW_MAX_CHARS
-        ? normalized.slice(0, PREVIEW_MAX_CHARS)
+    // §6.4: the cap is PREVIEW_MAX_CHARS CODE POINTS, in every binding. `.slice` cuts at a
+    // UTF-16 code UNIT, which is wrong twice over: it can strand a lone surrogate — ill-formed
+    // UTF-16 that no consumer can encode as UTF-8, and §1 makes this view JSON-safe and meant
+    // to cross a process boundary — and it counts a different number from the other two
+    // bindings, so the same input yielded two different conforming answers.
+    //
+    // `.length` counts units and is therefore always >= the code-point count, so a string
+    // within the cap by units is within it by code points too: that check is a fast path, not
+    // the rule. Only when it fails is the spread — which iterates by code point — worth its
+    // allocation.
+    if (normalized.length <= PREVIEW_MAX_CHARS) {
+        return normalized;
+    }
+    const points = [...normalized];
+    return points.length > PREVIEW_MAX_CHARS
+        ? points.slice(0, PREVIEW_MAX_CHARS).join("")
         : normalized;
@@ -141,0 +155,0 @@ }

dist/jmap-fastmail/index.js.map

@@ -1,1 +0,1 @@
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+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/jmap-fastmail/index.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,IAAI,EAAE,MAAM,2BAA2B,CAAC;AAEjD;;;;;;;;;;;;;;;;;;;;GAoBG;AAEH;;;;GAIG;AACH,MAAM,CAAC,MAAM,eAAe,GAAG,2BAA2B,CAAC;AAC3D,MAAM,CAAC,MAAM,eAAe,GAAG,2BAA2B,CAAC;AAC3D,MAAM,CAAC,MAAM,qBAAqB,GAAG,iCAAiC,CAAC;AAEvE,+EAA+E;AAC/E,MAAM,CAAC,MAAM,oBAAoB,GAAG,IAAI,CAAC;AACzC,mEAAmE;AACnE,MAAM,CAAC,MAAM,iBAAiB,GAAG,IAAI,CAAC;AAEtC,sFAAsF;AACtF,MAAM,CAAC,MAAM,gBAAgB,GAAsB;IACjD,IAAI;IACJ,QAAQ;IACR,UAAU;IACV,SAAS;IACT,MAAM;IACN,IAAI;IACJ,IAAI;IACJ,YAAY;IACZ,QAAQ;IACR,WAAW;IACX,eAAe;IACf,SAAS;IACT,aAAa;IACb,UAAU;IACV,YAAY;CACb,CAAC;AAgCF,MAAM,UAAU,QAAQ,CAAC,CAAU;IACjC,OAAO,OAAO,CAAC,KAAK,QAAQ,IAAI,CAAC,KAAK,IAAI,IAAI,CAAC,KAAK,CAAC,OAAO,CAAC,CAAC,CAAC;QAC7D,CAAC,CAAE,CAA6B;QAChC,CAAC,CAAC,IAAI,CAAC;AACX,CAAC;AAED,MAAM,UAAU,QAAQ,CAAC,CAAU;IACjC,OAAO,OAAO,CAAC,KAAK,QAAQ,IAAI,CAAC,KAAK,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC;AACtD,CAAC;AAED,+EAA+E;AAC/E,MAAM,UAAU,YAAY,CAAC,MAAe;IAC1C,MAAM,IAAI,GAAG,QAAQ,CAAC,MAAM,CAAC,CAAC;IAC9B,IAAI,IAAI,KAAK,IAAI,EAAE,CAAC;QAClB,OAAO,IAAI,CAAC;IACd,CAAC;IACD,MAAM,MAAM,GAAG,QAAQ,CAAC,IAAI,CAAC,QAAQ,CAAC,CAAC,CAAC;IACxC,MAAM,OAAO,GAAG,QAAQ,CAAC,IAAI,CAAC,iBAAiB,CAAC,CAAC,CAAC;IAClD,MAAM,SAAS,GAAG,OAAO,KAAK,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,QAAQ,CAAC,OAAO,CAAC,eAAe,CAAC,CAAC,CAAC;IAC/E,IAAI,MAAM,KAAK,IAAI,IAAI,SAAS,KAAK,IAAI,EAAE,CAAC;QAC1C,OAAO,IAAI,CAAC;IACd,CAAC;IACD,OAAO,EAAE,MAAM,EAAE,SAAS,EAAE,CAAC;AAC/B,CAAC;AAED;;;;;;;;GAQG;AACH,MAAM,UAAU,cAAc,CAAC,SAAiB,EAAE,WAAmB;IACnE,IAAI,MAAW,CAAC;IAChB,IAAI,IAAS,CAAC;IACd,IAAI,CAAC;QACH,MAAM,GAAG,IAAI,GAAG,CAAC,SAAS,CAAC,CAAC;QAC5B,IAAI,GAAG,IAAI,GAAG,CAAC,WAAW,CAAC,CAAC;IAC9B,CAAC;IAAC,MAAM,CAAC;QACP,MAAM,IAAI,KAAK,CAAC,yCAAyC,CAAC,CAAC;IAC7D,CAAC;IACD,IAAI,MAAM,CAAC,QAAQ,KAAK,QAAQ,EAAE,CAAC;QACjC,MAAM,IAAI,KAAK,CAAC,4BAA4B,CAAC,CAAC;IAChD,CAAC;IACD,IAAI,MAAM,CAAC,IAAI,KAAK,IAAI,CAAC,IAAI,EAAE,CAAC;QAC9B,MAAM,IAAI,KAAK,CAAC,qBAAqB,MAAM,CAAC,IAAI,gCAAgC,IAAI,CAAC,IAAI,GAAG,CAAC,CAAC;IAChG,CAAC;IACD,OAAO,MAAM,CAAC,QAAQ,EAAE,CAAC;AAC3B,CAAC;AAED,qFAAqF;AACrF,MAAM,UAAU,aAAa,CAAC,CAAU;IACtC,MAAM,CAAC,GAAG,QAAQ,CAAC,CAAC,CAAC,CAAC;IACtB,IAAI,CAAC,KAAK,IAAI,EAAE,CAAC;QACf,OAAO,EAAE,CAAC;IACZ,CAAC;IACD,MAAM,KAAK,GAAG,QAAQ,CAAC,CAAC,CAAC,OAAO,CAAC,CAAC,IAAI,EAAE,CAAC;IACzC,MAAM,IAAI,GAAG,QAAQ,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC;IACjC,IAAI,IAAI,KAAK,IAAI,EAAE,CAAC;QAClB,OAAO,KAAK,KAAK,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,GAAG,IAAI,KAAK,KAAK,GAAG,CAAC;IACpD,CAAC;IACD,OAAO,KAAK,CAAC;AACf,CAAC;AAED,MAAM,UAAU,eAAe,CAAC,CAAU;IACxC,OAAO,KAAK,CAAC,OAAO,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,aAAa,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,EAAE,EAAE,CAAC,CAAC,KAAK,EAAE,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC;AAC9E,CAAC;AAED,MAAM,UAAU,kBAAkB,CAAC,CAAU;IAC3C,IAAI,CAAC,KAAK,CAAC,OAAO,CAAC,CAAC,CAAC,EAAE,CAAC;QACtB,OAAO,EAAE,CAAC;IACZ,CAAC;IACD,OAAO,CAAC,CAAC,GAAG,CAAC,CAAC,GAAG,EAAE,EAAE;QACnB,MAAM,CAAC,GAAG,QAAQ,CAAC,GAAG,CAAC,CAAC;QACxB,MAAM,IAAI,GAAG,CAAC,KAAK,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC;QAC3C,OAAO;YACL,IAAI,EAAE,CAAC,KAAK,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC;YAC7C,SAAS,EAAE,OAAO,IAAI,KAAK,QAAQ,IAAI,MAAM,CAAC,QAAQ,CAAC,IAAI,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,IAAI;YAC1E,QAAQ,EAAE,CAAC,KAAK,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,QAAQ,CAAC,CAAC,CAAC,MAAM,CAAC,CAAC;SAClD,CAAC;IACJ,CAAC,CAAC,CAAC;AACL,CAAC;AAED,MAAM,UAAU,UAAU,CAAC,IAAY;IACrC,MAAM,UAAU,GAAG,IAAI,CACrB,IAAI;SACD,UAAU,CAAC,MAAM,EAAE,IAAI,CAAC;SACxB,OAAO,CAAC,SAAS,EAAE,GAAG,CAAC;SACvB,OAAO,CAAC,SAAS,EAAE,IAAI,CAAC,CAC5B,CAAC;IACF,uFAAuF;IACvF,2FAA2F;IAC3F,0FAA0F;IAC1F,oFAAoF;IACpF,wEAAwE;IACxE,EAAE;IACF,sFAAsF;IACtF,0FAA0F;IAC1F,wFAAwF;IACxF,cAAc;IACd,IAAI,UAAU,CAAC,MAAM,IAAI,iBAAiB,EAAE,CAAC;QAC3C,OAAO,UAAU,CAAC;IACpB,CAAC;IACD,MAAM,MAAM,GAAG,CAAC,GAAG,UAAU,CAAC,CAAC;IAC/B,OAAO,MAAM,CAAC,MAAM,GAAG,iBAAiB;QACtC,CAAC,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC,EAAE,iBAAiB,CAAC,CAAC,IAAI,CAAC,EAAE,CAAC;QAC7C,CAAC,CAAC,UAAU,CAAC;AACjB,CAAC;AAED;;;;GAIG;AACH,MAAM,UAAU,UAAU,CAAC,GAA4B;IACrD,MAAM,UAAU,GAAG,QAAQ,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,CAAC;IAC/C,MAAM,QAAQ,GAAG,GAAG,CAAC,UAAU,CAAC,CAAC;IACjC,IAAI,UAAU,KAAK,IAAI,IAAI,KAAK,CAAC,OAAO,CAAC,QAAQ,CAAC,EAAE,CAAC;QACnD,KAAK,MAAM,IAAI,IAAI,QAAQ,EAAE,CAAC;YAC5B,MAAM,MAAM,GAAG,QAAQ,CAAC,IAAI,CAAC,EAAE,CAAC,QAAQ,CAAC,CAAC;YAC1C,IAAI,OAAO,MAAM,KAAK,QAAQ,EAAE,CAAC;gBAC/B,MAAM,KAAK,GAAG,QAAQ,CAAC,UAAU,CAAC,MAAM,CAAC,CAAC,EAAE,CAAC,OAAO,CAAC,CAAC;gBACtD,IAAI,OAAO,KAAK,KAAK,QAAQ,IAAI,KAAK,KAAK,EAAE,EAAE,CAAC;oBAC9C,OAAO,UAAU,CAAC,KAAK,CAAC,CAAC;gBAC3B,CAAC;YACH,CAAC;QACH,CAAC;IACH,CAAC;IACD,OAAO,UAAU,CAAC,QAAQ,CAAC,GAAG,CAAC,SAAS,CAAC,CAAC,IAAI,EAAE,CAAC,CAAC;AACpD,CAAC;AAED,oFAAoF;AACpF,MAAM,UAAU,SAAS,CAAC,GAAY;IACpC,MAAM,CAAC,GAAG,QAAQ,CAAC,GAAG,CAAC,CAAC;IACxB,IAAI,CAAC,KAAK,IAAI,EAAE,CAAC;QACf,OAAO,IAAI,CAAC;IACd,CAAC;IACD,MAAM,EAAE,GAAG,QAAQ,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC;IAC7B,MAAM,YAAY,GAAG,CAAC,CAAC,WAAW,CAAC,CAAC;IACpC,MAAM,SAAS,GAAG,KAAK,CAAC,OAAO,CAAC,YAAY,C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package.json

 {
   "name": "@nimbus-dev/sdk",
-  "version": "1.27.0",
+  "version": "1.27.1",
   "license": "MIT",
@@ -5,0 +5,0 @@ "repository": {

src/jmap-fastmail/index.test.ts

@@ -238,2 +238,29 @@ import { describe, expect, test } from "bun:test";
 describe("capPreview", () => {
+  // §6.4's cap is PREVIEW_MAX_CHARS CODE POINTS, in every binding. `.slice` counts UTF-16
+  // code UNITS, which stranded a lone high surrogate here — ill-formed UTF-16 that no
+  // consumer can encode as UTF-8 — and also counted a different number from Python and Go,
+  // so one input had two conforming answers. Here in the fast suite as well as the corpus,
+  // because this survives a rewrite of either one.
+  test("keeps an astral character straddling the cap, whole", () => {
+    const straddling = `${"a".repeat(PREVIEW_MAX_CHARS - 1)}\u{1F600}tail`;
+    const out = capPreview(straddling);
+    expect([...out]).toHaveLength(PREVIEW_MAX_CHARS);
+    expect(out).toBe(`${"a".repeat(PREVIEW_MAX_CHARS - 1)}\u{1F600}`);
+    expect(/[\uD800-\uDBFF](?![\uDC00-\uDFFF])/.test(out)).toBe(false);
+    // Encodable as UTF-8, which a stranded surrogate is not.
+    expect(new TextDecoder().decode(new TextEncoder().encode(out))).toBe(out);
+  });
+
+  test("counts code points, not UTF-16 units", () => {
+    // 1500 astral characters is 1500 code points and 3000 UTF-16 units. A unit-counting
+    // implementation truncates; a code-point-counting one returns it whole. Nothing in the
+    // corpus distinguishes these two below the cap, so it is asserted here.
+    const astral = "\u{1F600}".repeat(1500);
+    expect([...capPreview(astral)]).toHaveLength(1500);
+  });
+
+  test("truncates at the cap when the boundary is not a surrogate", () => {
+    expect(capPreview("a".repeat(PREVIEW_MAX_CHARS + 50))).toBe("a".repeat(PREVIEW_MAX_CHARS));
+  });
+
   test("collapses multiple spaces and tabs", () => {
@@ -240,0 +267,0 @@ expect(capPreview("a   b\t\tc")).toBe("a b c");

src/jmap-fastmail/index.ts

@@ -180,4 +180,18 @@ import { trim } from "../internal/whitespace.js";
   );
-  return normalized.length > PREVIEW_MAX_CHARS
-    ? normalized.slice(0, PREVIEW_MAX_CHARS)
+  // §6.4: the cap is PREVIEW_MAX_CHARS CODE POINTS, in every binding. `.slice` cuts at a
+  // UTF-16 code UNIT, which is wrong twice over: it can strand a lone surrogate — ill-formed
+  // UTF-16 that no consumer can encode as UTF-8, and §1 makes this view JSON-safe and meant
+  // to cross a process boundary — and it counts a different number from the other two
+  // bindings, so the same input yielded two different conforming answers.
+  //
+  // `.length` counts units and is therefore always >= the code-point count, so a string
+  // within the cap by units is within it by code points too: that check is a fast path, not
+  // the rule. Only when it fails is the spread — which iterates by code point — worth its
+  // allocation.
+  if (normalized.length <= PREVIEW_MAX_CHARS) {
+    return normalized;
+  }
+  const points = [...normalized];
+  return points.length > PREVIEW_MAX_CHARS
+    ? points.slice(0, PREVIEW_MAX_CHARS).join("")
     : normalized;
@@ -184,0 +198,0 @@ }

New alerts

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Fixed alerts

URL strings

Supply chain risk

Package contains fragments of external URLs or IP addresses, which the package may be accessing at runtime.

Improved metrics

Total package byte prevSize

874236

0.41%

Lines of code

16821

0.31%

No dependency changes