Conform CLI double-quoted escaping to what its doc says.

FossilOrigin-Name: 910535ba518f35ecc64c980ad67e3af69008d1995235f52ab12db6cefdb6602b

manifest

@@ -1,5 +1,5 @@
-C In\sthe\szipfile\sextension,\sleave\sthe\scatalog\slist\sin\sa\sconsistent\sstate\swhen\nthe\slast\sentry\sis\sremoved\sfrom\sthe\slist.\n[forum:/info/f03f1e4c5a5c9959|forum\spost\sf03f1e4c5a5c9959].
-D 2023-05-03T07:30:15.720
+C Conform\sCLI\sdouble-quoted\sescaping\sto\swhat\sits\sdoc\ssays.
+D 2023-05-03T11:27:15.731
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
 F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@ -636,7 +636,7 @@ F src/random.c 606b00941a1d7dd09c381d3279a058d771f406c5213c9932bbd93d5587be4b9c
 F src/resolve.c 3e53e02ce87c9582bd7e7d22f13f4094a271678d9dc72820fa257a2abb5e4032
 F src/rowset.c ba9515a922af32abe1f7d39406b9d35730ed65efab9443dc5702693b60854c92
 F src/select.c f879cef11c462a2c37a8c906932781e384c3bb32042c355a704a043029c90d27
-F src/shell.c.in 589e647fe907fbf70b0e503b601f2ee1fc0587c9bec0c38a589824d2b19f9af3
+F src/shell.c.in 39ea3d9c17c65c42c6c415222d89a32ae683b245c8af7b4bfc544d9246055d16
 F src/sqlite.h.in d6b0b83b2deab8f92ef7cc6f6fb94fa59d21c59f7b55f4c693bfff161ce42238
 F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
 F src/sqlite3ext.h da473ce2b3d0ae407a6300c4a164589b9a6bfdbec9462688a8593ff16f3bb6e4
@@ -1500,7 +1500,7 @@ F test/sharedA.test 64bdd21216dda2c6a3bd3475348ccdc108160f34682c97f2f51c19fc0e21
 F test/sharedB.test 1a84863d7a2204e0d42f2e1606577c5e92e4473fa37ea0f5bdf829e4bf8ee707
 F test/shared_err.test 32634e404a3317eeb94abc7a099c556a346fdb8fb3858dbe222a4cbb8926a939
 F test/sharedlock.test 5ede3c37439067c43b0198f580fd374ebf15d304
-F test/shell1.test 291c5c4b313adbe44d847af78b730a3bbfa1598c450e09ffe5601170bf7f28e7
+F test/shell1.test 300b77328aaafb9f3e7a53a26e4162fbf92181d92251d259ff105a2275ff998d
 F test/shell2.test 09a202f57e7cd99788537f763e0845796a173fcea06a0d199a08d69446fe1daf
 F test/shell3.test 91febeac0412812bf6370abb8ed72700e32bf8f9878849414518f662dfd55e8a
 F test/shell4.test 9abd0c12a7e20a4c49e84d5be208d2124fa6c09e728f56f1f4bee0f02853935f
@@ -2068,8 +2068,9 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
 F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
 F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
-P 0512f82a2cde7447cb348d9fd620f39f2f0e359141903cde20f7ba30b5d34af3
-R 8cfba04673384b0fb1cde1779f791db9
-U drh
-Z 5a77ab8977a542de14acdb51e815a500
+P 1b489d008b7bda12f9bf92e246bc613ef61e9c74ace0652d6d088e5a6e0696f6 90e434a6ae370a35109802fc336b98298d345f3d23125ef2cc68c31d8e69bb50
+R f83257d6b84f976842731b607596c265
+T +closed 90e434a6ae370a35109802fc336b98298d345f3d23125ef2cc68c31d8e69bb50
+U larrybr
+Z b5b6e25710fb288f20b1637e21b6730a
 # Remove this line to create a well-formed Fossil manifest.

manifest.uuid

@@ -1 +1 @@
-1b489d008b7bda12f9bf92e246bc613ef61e9c74ace0652d6d088e5a6e0696f6
+910535ba518f35ecc64c980ad67e3af69008d1995235f52ab12db6cefdb6602b

src/shell.c.in

@@ -5600,6 +5600,7 @@ static void linenoise_completion(const char *zLine, linenoiseCompletions *lc){
 **    \'    -> '
 **    \\    -> backslash
 **    \NNN  -> ascii character NNN in octal
+**    \xHH  -> ascii character HH in hexadecimal
 */
 static void resolve_backslashes(char *z){
   int i, j;
@@ -5628,6 +5629,15 @@ static void resolve_backslashes(char *z){
         c = '\'';
       }else if( c=='\\' ){
         c = '\\';
+      }else if( c=='x' ){
+        int nhd = 0, hdv;
+        u8 hv = 0;
+        while( nhd<2 && (c=z[i+1+nhd])!=0 && (hdv=hexDigitValue(c))>=0 ){
+          hv = (u8)((hv<<4)|hdv);
+          ++nhd;
+        }
+        i += nhd;
+        c = (u8)hv;
       }else if( c>='0' && c<='7' ){
         c -= '0';
         if( z[i+1]>='0' && z[i+1]<='7' ){

test/shell1.test

@@ -254,6 +254,11 @@ do_test shell1-2.4.2 {
   catchcmd "test.db" ".mode \"csv\""
 } {0 {}}
 
+# check that certain quoted arg escapes work
+do_test shell1-2.5.1 {
+  catchcmd ":memory:" ".print \"\\060\\077 \\x3f\\x30 \\a\\t\""
+} [list 0 "0? ?0 \a\t"]
+
 
 #----------------------------------------------------------------------------
 # Test cases shell1-3.*: Basic test that "dot" command can be called.