diff --git a/Internal.h b/Internal.h
index 238bcab..1233288 100644
--- a/Internal.h
+++ b/Internal.h
@@ -507,6 +507,18 @@ inline std::string printable(std::span<const uint8_t> key) {
   return printable(std::string_view((const char *)key.data(), key.size()));
 }
 
+inline const char *resultToStr(ConflictSet::Result r) {
+  switch (r) {
+  case ConflictSet::Commit:
+    return "commit";
+  case ConflictSet::Conflict:
+    return "conflict";
+  case ConflictSet::TooOld:
+    return "too old";
+  }
+  abort();
+}
+
 namespace {
 
 template <class ConflictSetImpl> struct TestDriver {
@@ -523,18 +535,6 @@ template <class ConflictSetImpl> struct TestDriver {
 
   bool ok = true;
 
-  static const char *resultToStr(ConflictSet::Result r) {
-    switch (r) {
-    case ConflictSet::Commit:
-      return "commit";
-    case ConflictSet::Conflict:
-      return "conflict";
-    case ConflictSet::TooOld:
-      return "too old";
-    }
-    abort();
-  }
-
   // Call until it returns true, for "done". Check internal invariants etc
   // between calls to next.
   bool next() {
diff --git a/ScriptTest.cpp b/ScriptTest.cpp
index e9f26bd..6a7a4e2 100644
--- a/ScriptTest.cpp
+++ b/ScriptTest.cpp
@@ -84,6 +84,7 @@ int main(int argc, const char **argv) {
         readRanges.push_back(r);
       } else if (line.starts_with("pointwrite"_v)) {
         printf("pointwrite\n");
+        // TODO check sorted
         ConflictSet::WriteRange w;
         w.begin.p = b.data();
         w.begin.len = b.size();
@@ -100,6 +101,7 @@ int main(int argc, const char **argv) {
         readRanges.push_back(r);
       } else if (line.starts_with("rangewrite"_v)) {
         printf("rangewrite\n");
+        // TODO check sorted
         ConflictSet::WriteRange w;
         w.begin.p = b.data();
         w.begin.len = b.size();
@@ -114,7 +116,11 @@ int main(int argc, const char **argv) {
         ref.check(readRanges.data(), expected, readRanges.size());
         cs.check(readRanges.data(), actual, readRanges.size());
         for (int i = 0; i < int(readRanges.size()); ++i) {
-          assert(expected[i] == actual[i]);
+          if (expected[i] != actual[i]) {
+            fprintf(stderr, "Expected %s, got %s at index %d\n",
+                    resultToStr(expected[i]), resultToStr(actual[i]), i);
+            return 1;
+          }
         }
         readRanges = {};
       } else if (line.starts_with("addwrites"_v)) {
@@ -126,6 +132,8 @@ int main(int argc, const char **argv) {
         printf("setoldest\n");
         cs.setOldestVersion(v);
         ref.setOldestVersion(v);
+      } else if (line.empty() || line.starts_with(";"_v)) {
+        // skip
       } else {
         printf("Unrecognized line: %.*s\n", int(line.size()), line.data());
       }
diff --git a/script_tests/inner-full-word.txt b/script_tests/inner-full-word.txt
new file mode 100644
index 0000000..f1319ad
--- /dev/null
+++ b/script_tests/inner-full-word.txt
@@ -0,0 +1,212 @@
+; insert \x3fa at version 1
+begin ?a
+pointwrite
+
+; insert \x81a at version 1
+begin a
+pointwrite
+version 1
+addwrites
+
+; insert [\x40-\x80]a at version 2
+begin @a
+pointwrite
+
+begin Aa
+pointwrite
+
+begin Ba
+pointwrite
+
+begin Ca
+pointwrite
+
+begin Da
+pointwrite
+
+begin Ea
+pointwrite
+
+begin Fa
+pointwrite
+
+begin Ga
+pointwrite
+
+begin Ha
+pointwrite
+
+begin Ia
+pointwrite
+
+begin Ja
+pointwrite
+
+begin Ka
+pointwrite
+
+begin La
+pointwrite
+
+begin Ma
+pointwrite
+
+begin Na
+pointwrite
+
+begin Oa
+pointwrite
+
+begin Pa
+pointwrite
+
+begin Qa
+pointwrite
+
+begin Ra
+pointwrite
+
+begin Sa
+pointwrite
+
+begin Ta
+pointwrite
+
+begin Ua
+pointwrite
+
+begin Va
+pointwrite
+
+begin Wa
+pointwrite
+
+begin Xa
+pointwrite
+
+begin Ya
+pointwrite
+
+begin Za
+pointwrite
+
+begin [a
+pointwrite
+
+begin \a
+pointwrite
+
+begin ]a
+pointwrite
+
+begin ^a
+pointwrite
+
+begin _a
+pointwrite
+
+begin `a
+pointwrite
+
+begin aa
+pointwrite
+
+begin ba
+pointwrite
+
+begin ca
+pointwrite
+
+begin da
+pointwrite
+
+begin ea
+pointwrite
+
+begin fa
+pointwrite
+
+begin ga
+pointwrite
+
+begin ha
+pointwrite
+
+begin ia
+pointwrite
+
+begin ja
+pointwrite
+
+begin ka
+pointwrite
+
+begin la
+pointwrite
+
+begin ma
+pointwrite
+
+begin na
+pointwrite
+
+begin oa
+pointwrite
+
+begin pa
+pointwrite
+
+begin qa
+pointwrite
+
+begin ra
+pointwrite
+
+begin sa
+pointwrite
+
+begin ta
+pointwrite
+
+begin ua
+pointwrite
+
+begin va
+pointwrite
+
+begin wa
+pointwrite
+
+begin xa
+pointwrite
+
+begin ya
+pointwrite
+
+begin za
+pointwrite
+
+begin {a
+pointwrite
+
+begin |a
+pointwrite
+
+begin }a
+pointwrite
+
+begin ~a
+pointwrite
+
+begin a
+pointwrite
+
+version 2
+addwrites
+
+; readrange a superset at version 1
+begin !
+end ‚
+version 1
+rangeread
+check