From d97d504c5e8a9f2ffe16cd98a47a9136667ec481 Mon Sep 17 00:00:00 2001
From: hobbs <hobbs>
Date: Tue, 29 Jan 2002 02:40:49 +0000
Subject: 	* tests/regexpComp.test (new): 	* generic/tclInt.h: 	*
 generic/tclBasic.c: added TclCompileRegexpCmd entry 	*
 generic/tclCompCmds.c (TclCompileStringCmd): corrected to return 
 TCL_OUT_LINE_COMPILE instead of TCL_ERROR for parsing errors, so 	it
 only throws the error for runtime compile, in case the user 	modifies
 'string'. 	(TclCompileRegexpCmd): first try at a byte-compiled regexp 
 command.  It handles static strings and ^$ bounded static strings. 
 (TclCompileAppendCmd): made TclPushVarName call always use 	TCL_CREATE_VAR
 as numWords is always > 2 at that point.

---
 ChangeLog             |  20 ++
 generic/tclBasic.c    |   4 +-
 generic/tclCompCmds.c | 150 ++++++++--
 generic/tclInt.h      |   9 +-
 tests/regexpComp.test | 760 ++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 919 insertions(+), 24 deletions(-)
 create mode 100644 tests/regexpComp.test

diff --git a/ChangeLog b/ChangeLog
index 780e689..f305801 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,25 @@
 2002-01-28  Jeff Hobbs  <jeffh@ActiveState.com>
 
+	* tests/regexpComp.test (new):
+	* generic/tclInt.h:
+	* generic/tclBasic.c: added TclCompileRegexpCmd entry
+	* generic/tclCompCmds.c (TclCompileStringCmd): corrected to return
+	TCL_OUT_LINE_COMPILE instead of TCL_ERROR for parsing errors, so
+	it only throws the error for runtime compile, in case the user
+	modifies 'string'.
+	(TclCompileRegexpCmd): first try at a byte-compiled regexp
+	command.  It handles static strings and ^$ bounded static strings.
+	(TclCompileAppendCmd): made TclPushVarName call always use
+	TCL_CREATE_VAR as numWords is always > 2 at that point.
+
+	* generic/tclExecute.c (TclExecuteByteCode:INST_LIST): correct
+	possibly dangerous decr in macro call.
+
+	* win/tclWinInit.c (TclpFindVariable): CONSTification touch-up
+
+	* win/tclWinReg.c (OpenSubKey): corrected bug introduced in
+	CONSTification that dropped pointer reference.
+
 	* ChangeLog.2000 (new file):
 	* ChangeLog: broke changes from 2000 into ChangeLog.2000 to reduce
 	  size of the main ChangeLog.
diff --git a/generic/tclBasic.c b/generic/tclBasic.c
index 3ebdfb0..133228a 100644
--- a/generic/tclBasic.c
+++ b/generic/tclBasic.c
@@ -13,7 +13,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclBasic.c,v 1.44 2002/01/25 21:36:09 dgp Exp $
+ * RCS: @(#) $Id: tclBasic.c,v 1.45 2002/01/29 02:40:49 hobbs Exp $
  */
 
 #include "tclInt.h"
@@ -139,7 +139,7 @@ static CmdInfo builtInCmds[] = {
     {"proc",		(Tcl_CmdProc *) NULL,	Tcl_ProcObjCmd,	
         (CompileProc *) NULL,		1},
     {"regexp",		(Tcl_CmdProc *) NULL,	Tcl_RegexpObjCmd,
-        (CompileProc *) NULL,		1},
+        TclCompileRegexpCmd,		1},
     {"regsub",		(Tcl_CmdProc *) NULL,	Tcl_RegsubObjCmd,
         (CompileProc *) NULL,		1},
     {"rename",		(Tcl_CmdProc *) NULL,	Tcl_RenameObjCmd,
diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c
index 536ad2d..dfab488 100644
--- a/generic/tclCompCmds.c
+++ b/generic/tclCompCmds.c
@@ -10,7 +10,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclCompCmds.c,v 1.21 2002/01/25 20:40:55 dgp Exp $
+ * RCS: @(#) $Id: tclCompCmds.c,v 1.22 2002/01/29 02:40:50 hobbs Exp $
  */
 
 #include "tclInt.h"
@@ -107,8 +107,7 @@ TclCompileAppendCmd(interp, parsePtr, envPtr)
     varTokenPtr = parsePtr->tokenPtr
 	    + (parsePtr->tokenPtr->numComponents + 1);
 
-    code = TclPushVarName(interp, varTokenPtr, envPtr,
-	    ((numWords > 2) ? TCL_CREATE_VAR : 0),
+    code = TclPushVarName(interp, varTokenPtr, envPtr, TCL_CREATE_VAR,
 	    &localIndex, &simpleVarName, &isScalar);
     if (code != TCL_OK) {
 	goto done;
@@ -2149,6 +2148,125 @@ TclCompileLsetCmd( interp, parsePtr, envPtr )
 /*
  *----------------------------------------------------------------------
  *
+ * TclCompileRegexpCmd --
+ *
+ *	Procedure called to compile the "regexp" command.
+ *
+ * Results:
+ *	The return value is a standard Tcl result, which is TCL_OK if
+ *	the compilation was successful.  If the "regexp" command is too
+ *	complex for this function, then TCL_OUT_LINE_COMPILE is returned,
+ *	indicating that the command should be compiled "out of line"
+ *	(that is, not byte-compiled).  If an error occurs, TCL_ERROR is
+ *	returned, and the interpreter result contains an error message.
+ *
+ * Side effects:
+ *	Instructions are added to envPtr to execute the "regexp" command
+ *	at runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclCompileRegexpCmd(interp, parsePtr, envPtr)
+    Tcl_Interp* interp;		/* Tcl interpreter for error reporting */
+    Tcl_Parse* parsePtr;	/* Points to a parse structure for
+				 * the command */
+    CompileEnv* envPtr;		/* Holds the resulting instructions */
+{
+    Tcl_Token *varTokenPtr;	/* Pointer to the Tcl_Token representing
+				 * the parse of the RE or string */
+    int length, code, exactMatch;
+    char c, *str;
+
+    if (parsePtr->numWords != 3) {
+	/* We are only interested in compiling simple regexp cases. */
+	return TCL_OUT_LINE_COMPILE;
+    }
+
+    varTokenPtr = parsePtr->tokenPtr + (parsePtr->tokenPtr->numComponents + 1);
+    if (varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+	/* Not a simple string - punt to runtime. */
+	return TCL_OUT_LINE_COMPILE;
+    }
+    str    = varTokenPtr[1].start;
+    length = varTokenPtr[1].size;
+    if (*str == '-') {
+	/*
+	 * Looks like it may be an option.  With 3 args, this is an
+	 * incorrect call, but we punt on it here.
+	 */
+	return TCL_OUT_LINE_COMPILE;
+    }
+
+    /*
+     * On the first (pattern) arg, check to see if any RE special characters
+     * are in the word.  If not, this is the same as 'string equal'.
+     * We can use strchr here because the glob chars are all in the ascii-7
+     * range.  If -nocase was specified, we can't do this because INST_STR_EQ
+     * has no support for nocase.
+     */
+    if ((length > 1) && (str[0] == '^') && (str[length-1] == '$')) {
+	/*
+	 * It appears and exact search was requested (ie ^foo$), so strip
+	 * off the special chars and signal exactMatch.
+	 */
+	str++; length -= 2;
+	exactMatch = 1;
+    } else {
+	exactMatch = 0;
+    }
+    c = str[length];
+    str[length] = '\0';
+    if (strpbrk(str, "*+?{}()[].\\|^$") != NULL) {
+	str[length] = c;
+	/* We don't do anything with REs with special chars yet. */
+	return TCL_OUT_LINE_COMPILE;
+    }
+    str[length] = c;
+    if (exactMatch) {
+	TclEmitPush(TclRegisterLiteral(envPtr, str, length, 0), envPtr);
+    } else {
+	/*
+	 * This needs to find the substring anywhere in the string, so
+	 * use string match and *foo*.
+	 */
+	char *newStr = ckalloc((unsigned) length + 3);
+	newStr[0]        = '*';
+	strncpy(newStr + 1, str, (size_t) length);
+	newStr[length+1]   = '*';
+	newStr[length+2] = '\0';
+	TclEmitPush(TclRegisterLiteral(envPtr, newStr, length+2, 0), envPtr);
+	ckfree((char *) newStr);
+    }
+
+    /*
+     * Push the string arg
+     */
+    varTokenPtr = varTokenPtr + (varTokenPtr->numComponents + 1);
+    if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
+	TclEmitPush(TclRegisterLiteral(envPtr,
+		varTokenPtr[1].start, varTokenPtr[1].size, 0), envPtr);
+    } else {
+	code = TclCompileTokens(interp, varTokenPtr+1,
+		varTokenPtr->numComponents, envPtr);
+	if (code != TCL_OK) {
+	    return code;
+	}
+    }
+
+    if (exactMatch) {
+	TclEmitOpcode(INST_STR_EQ, envPtr);
+    } else {
+	TclEmitInstInt1(INST_STR_MATCH, 0 /* nocase */, envPtr);
+    }
+
+    return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * TclCompileReturnCmd --
  *
  *	Procedure called to compile the "return" command.
@@ -2420,9 +2538,8 @@ TclCompileStringCmd(interp, parsePtr, envPtr)
     };	  
 
     if (parsePtr->numWords < 2) {
-	Tcl_SetResult(interp, "wrong # args: should be \"string option "
-		"arg ?arg ...?\"", TCL_STATIC);
-	return TCL_ERROR;
+	/* Fail at run time, not in compilation */
+	return TCL_OUT_LINE_COMPILE;
     }
     opTokenPtr = parsePtr->tokenPtr
 	+ (parsePtr->tokenPtr->numComponents + 1);
@@ -2437,7 +2554,7 @@ TclCompileStringCmd(interp, parsePtr, envPtr)
     Tcl_DecrRefCount(opObj);
 
     varTokenPtr = opTokenPtr + (opTokenPtr->numComponents + 1);
-    
+
     switch ((enum options) index) {
 	case STR_BYTELENGTH:
 	case STR_FIRST:
@@ -2499,9 +2616,8 @@ TclCompileStringCmd(interp, parsePtr, envPtr)
 	    int i;
 
 	    if (parsePtr->numWords != 4) {
-		Tcl_SetResult(interp, "wrong # args: should be "
-			"\"string index string charIndex\"", TCL_STATIC);
-		return TCL_ERROR;
+		/* Fail at run time, not in compilation */
+		return TCL_OUT_LINE_COMPILE;
 	    }
 
 	    /*
@@ -2528,9 +2644,8 @@ TclCompileStringCmd(interp, parsePtr, envPtr)
 	}
 	case STR_LENGTH: {
 	    if (parsePtr->numWords != 3) {
-		Tcl_SetResult(interp, "wrong # args: should be "
-			"\"string length string\"", TCL_STATIC);
-		return TCL_ERROR;
+		/* Fail at run time, not in compilation */
+		return TCL_OUT_LINE_COMPILE;
 	    }
 
 	    if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
@@ -2559,10 +2674,8 @@ TclCompileStringCmd(interp, parsePtr, envPtr)
 	    char c, *str;
 
 	    if (parsePtr->numWords < 4 || parsePtr->numWords > 5) {
-		Tcl_SetResult(interp, "wrong # args: should be "
-			"\"string match ?-nocase? pattern string\"",
-			TCL_STATIC);
-		return TCL_ERROR;
+		/* Fail at run time, not in compilation */
+		return TCL_OUT_LINE_COMPILE;
 	    }
 
 	    if (parsePtr->numWords == 5) {
@@ -2581,7 +2694,8 @@ TclCompileStringCmd(interp, parsePtr, envPtr)
 			    "bad option \"", str, "\": must be -nocase",
 			    (char *) NULL);
 		    str[length] = c;
-		    return TCL_ERROR;
+		    /* Fail at run time, not in compilation */
+		    return TCL_OUT_LINE_COMPILE;
 		}
 		varTokenPtr = varTokenPtr + (varTokenPtr->numComponents + 1);
 	    }
diff --git a/generic/tclInt.h b/generic/tclInt.h
index f20379c..9388c5d 100644
--- a/generic/tclInt.h
+++ b/generic/tclInt.h
@@ -12,7 +12,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclInt.h,v 1.76 2002/01/25 20:40:55 dgp Exp $
+ * RCS: @(#) $Id: tclInt.h,v 1.77 2002/01/29 02:40:50 hobbs Exp $
  */
 
 #ifndef _TCLINT
@@ -2126,9 +2126,10 @@ EXTERN int	TclCompileListCmd _ANSI_ARGS_((Tcl_Interp *interp,
 		    Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
 EXTERN int	TclCompileLlengthCmd _ANSI_ARGS_((Tcl_Interp *interp,
 		    Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
-EXTERN int	TclCompileLsetCmd _ANSI_ARGS_(( Tcl_Interp* interp,
-						Tcl_Parse* parsePtr,
-						struct CompileEnv* envPtr ));
+EXTERN int	TclCompileLsetCmd _ANSI_ARGS_((Tcl_Interp* interp,
+		    Tcl_Parse* parsePtr, struct CompileEnv* envPtr));
+EXTERN int	TclCompileRegexpCmd _ANSI_ARGS_((Tcl_Interp* interp,
+		    Tcl_Parse* parsePtr, struct CompileEnv* envPtr));
 EXTERN int	TclCompileReturnCmd _ANSI_ARGS_((Tcl_Interp *interp,
 		    Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
 EXTERN int	TclCompileSetCmd _ANSI_ARGS_((Tcl_Interp *interp,
diff --git a/tests/regexpComp.test b/tests/regexpComp.test
new file mode 100644
index 0000000..41e63d6
--- /dev/null
+++ b/tests/regexpComp.test
@@ -0,0 +1,760 @@
+# Commands covered:  regexp, regsub
+#
+# This file contains a collection of tests for one or more of the Tcl
+# built-in commands.  Sourcing this file into Tcl runs the tests and
+# generates output for errors.  No output means no errors were found.
+#
+# Copyright (c) 1991-1993 The Regents of the University of California.
+# Copyright (c) 1998 Sun Microsystems, Inc.
+# Copyright (c) 1998-1999 by Scriptics Corporation.
+#
+# See the file "license.terms" for information on usage and redistribution
+# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+#
+# RCS: @(#) $Id$
+
+if {[lsearch [namespace children] ::tcltest] == -1} {
+    package require tcltest
+    namespace import -force ::tcltest::*
+}
+
+# Procedure to evaluate a script within a proc, to test compilation
+# functionality
+
+proc evalInProc { script } {
+    proc testProc {} $script
+    set status [catch {
+	testProc 
+    } result]
+    rename testProc {}
+    return $result
+    #return [list $status $result]
+}
+
+catch {unset foo}
+test regexp-1.1 {basic regexp operation} {
+    evalInProc {
+	regexp ab*c abbbc
+    }
+} 1
+test regexp-1.2 {basic regexp operation} {
+    evalInProc {
+	regexp ab*c ac
+    }
+} 1
+test regexp-1.3 {basic regexp operation} {
+    evalInProc {    
+	regexp ab*c ab
+    }
+} 0
+test regexp-1.4 {basic regexp operation} {
+    evalInProc {
+	regexp -- -gorp abc-gorpxxx
+    }
+} 1
+test regexp-1.5 {basic regexp operation} {
+    evalInProc {
+	regexp {^([^ ]*)[ ]*([^ ]*)} "" a
+    }
+} 1
+test regexp-1.6 {basic regexp operation} {
+    list [catch {regexp {} abc} msg] $msg
+} {0 1}
+test regexp-1.7 {regexp utf compliance} {
+    # if not UTF-8 aware, result is "0 1"
+    evalInProc {
+	set foo "\u4e4eb q"
+	regexp "\u4e4eb q" "a\u4e4eb qw\u5e4e\x4e wq" bar
+	list [string compare $foo $bar] [regexp 4 $bar]
+    }
+} {0 0}
+
+test regexp-2.1 {getting substrings back from regexp} {
+    evalInProc {
+	set foo {}
+	list [regexp ab*c abbbbc foo] $foo
+    }
+} {1 abbbbc}
+test regexp-2.2 {getting substrings back from regexp} {
+    evalInProc {
+	set foo {}
+	set f2 {}
+	list [regexp a(b*)c abbbbc foo f2] $foo $f2
+    }
+} {1 abbbbc bbbb}
+test regexp-2.3 {getting substrings back from regexp} {
+    evalInProc {
+	set foo {}
+	set f2 {}
+	list [regexp a(b*)(c) abbbbc foo f2] $foo $f2
+    }
+} {1 abbbbc bbbb}
+test regexp-2.4 {getting substrings back from regexp} {
+    evalInProc {
+	set foo {}
+	set f2 {}
+	set f3 {}
+	list [regexp a(b*)(c) abbbbc foo f2 f3] $foo $f2 $f3
+    }
+} {1 abbbbc bbbb c}
+test regexp-2.5 {getting substrings back from regexp} {
+    evalInProc {
+	set foo {}; set f1 {}; set f2 {}; set f3 {}; set f4 {}; set f5 {};
+	set f6 {}; set f7 {}; set f8 {}; set f9 {}; set fa {}; set fb {};
+	list [regexp (1*)(2*)(3*)(4*)(5*)(6*)(7*)(8*)(9*)(a*)(b*) \
+		12223345556789999aabbb \
+		foo f1 f2 f3 f4 f5 f6 f7 f8 f9 fa fb] $foo $f1 $f2 $f3 $f4 $f5 \
+		$f6 $f7 $f8 $f9 $fa $fb
+    }
+} {1 12223345556789999aabbb 1 222 33 4 555 6 7 8 9999 aa bbb}
+test regexp-2.6 {getting substrings back from regexp} {
+    evalInProc {
+	set foo 2; set f2 2; set f3 2; set f4 2
+	list [regexp (a)(b)? xay foo f2 f3 f4] $foo $f2 $f3 $f4
+    }
+} {1 a a {} {}}
+test regexp-2.7 {getting substrings back from regexp} {
+    evalInProc {
+	set foo 1; set f2 1; set f3 1; set f4 1
+	list [regexp (a)(b)?(c) xacy foo f2 f3 f4] $foo $f2 $f3 $f4
+    }
+} {1 ac a {} c}
+test regexp-2.8 {getting substrings back from regexp} {
+    evalInProc {
+	set match {}
+	list [regexp {^a*b} aaaab match] $match
+    }
+} {1 aaaab}
+
+test regexp-3.1 {-indices option to regexp} {
+    evalInProc {
+	set foo {}
+	list [regexp -indices ab*c abbbbc foo] $foo
+    }
+} {1 {0 5}}
+test regexp-3.2 {-indices option to regexp} {
+    evalInProc {
+	set foo {}
+	set f2 {}
+	list [regexp -indices a(b*)c abbbbc foo f2] $foo $f2
+    }
+} {1 {0 5} {1 4}}
+test regexp-3.3 {-indices option to regexp} {
+    evalInProc {
+	set foo {}
+	set f2 {}
+	list [regexp -indices a(b*)(c) abbbbc foo f2] $foo $f2
+    }
+} {1 {0 5} {1 4}}
+test regexp-3.4 {-indices option to regexp} {
+    evalInProc {
+	set foo {}
+	set f2 {}
+	set f3 {}
+	list [regexp -indices a(b*)(c) abbbbc foo f2 f3] $foo $f2 $f3
+    }
+} {1 {0 5} {1 4} {5 5}}
+test regexp-3.5 {-indices option to regexp} {
+    evalInProc {
+	set foo {}; set f1 {}; set f2 {}; set f3 {}; set f4 {}; set f5 {};
+	set f6 {}; set f7 {}; set f8 {}; set f9 {}
+	list [regexp -indices (1*)(2*)(3*)(4*)(5*)(6*)(7*)(8*)(9*) \
+		12223345556789999 \
+		foo f1 f2 f3 f4 f5 f6 f7 f8 f9] $foo $f1 $f2 $f3 $f4 $f5 \
+		$f6 $f7 $f8 $f9
+    }
+} {1 {0 16} {0 0} {1 3} {4 5} {6 6} {7 9} {10 10} {11 11} {12 12} {13 16}}
+test regexp-3.6 {getting substrings back from regexp} {
+    evalInProc {
+	set foo 2; set f2 2; set f3 2; set f4 2
+	list [regexp -indices (a)(b)? xay foo f2 f3 f4] $foo $f2 $f3 $f4
+    }
+} {1 {1 1} {1 1} {-1 -1} {-1 -1}}
+test regexp-3.7 {getting substrings back from regexp} {
+    evalInProc {
+	set foo 1; set f2 1; set f3 1; set f4 1
+	list [regexp -indices (a)(b)?(c) xacy foo f2 f3 f4] $foo $f2 $f3 $f4
+    }
+} {1 {1 2} {1 1} {-1 -1} {2 2}}
+
+test regexp-4.1 {-nocase option to regexp} {
+    evalInProc {
+	regexp -nocase foo abcFOo
+    }
+} 1
+test regexp-4.2 {-nocase option to regexp} {
+    evalInProc {
+	set f1 22
+	set f2 33
+	set f3 44
+	list [regexp -nocase {a(b*)([xy]*)z} aBbbxYXxxZ22 f1 f2 f3] $f1 $f2 $f3
+    }
+} {1 aBbbxYXxxZ Bbb xYXxx}
+test regexp-4.3 {-nocase option to regexp} {
+    evalInProc {
+	regexp -nocase FOo abcFOo
+    }
+} 1
+set ::x abcdefghijklmnopqrstuvwxyz1234567890
+set ::x $x$x$x$x$x$x$x$x$x$x$x$x
+test regexp-4.4 {case conversion in regexp} {
+    evalInProc {
+	list [regexp -nocase $::x $::x foo] $foo
+    }
+} "1 $x"
+catch {unset ::x}
+
+test regexp-5.1 {exercise cache of compiled expressions} {
+    evalInProc {
+	regexp .*a b
+	regexp .*b c
+	regexp .*c d
+	regexp .*d e
+	regexp .*e f
+	regexp .*a bbba
+    }
+} 1
+test regexp-5.2 {exercise cache of compiled expressions} {
+    evalInProc {
+	regexp .*a b
+	regexp .*b c
+	regexp .*c d
+	regexp .*d e
+	regexp .*e f
+	regexp .*b xxxb
+    }
+} 1
+test regexp-5.3 {exercise cache of compiled expressions} {
+    evalInProc {
+	regexp .*a b
+	regexp .*b c
+	regexp .*c d
+	regexp .*d e
+	regexp .*e f
+	regexp .*c yyyc
+    }
+} 1
+test regexp-5.4 {exercise cache of compiled expressions} {
+    evalInProc {
+	regexp .*a b
+	regexp .*b c
+	regexp .*c d
+	regexp .*d e
+	regexp .*e f
+	regexp .*d 1d
+    }
+} 1
+test regexp-5.5 {exercise cache of compiled expressions} {
+    evalInProc {
+	regexp .*a b
+	regexp .*b c
+	regexp .*c d
+	regexp .*d e
+	regexp .*e f
+	regexp .*e xe
+    }
+} 1
+
+test regexp-6.1 {regexp errors} {
+    evalInProc {
+	list [catch {regexp a} msg] $msg
+    }
+} {1 {wrong # args: should be "regexp ?switches? exp string ?matchVar? ?subMatchVar subMatchVar ...?"}}
+test regexp-6.2 {regexp errors} {
+    evalInProc {
+	list [catch {regexp -nocase a} msg] $msg
+    }
+} {1 {wrong # args: should be "regexp ?switches? exp string ?matchVar? ?subMatchVar subMatchVar ...?"}}
+test regexp-6.3 {regexp errors} {
+    evalInProc {
+	list [catch {regexp -gorp a} msg] $msg
+    }
+} {1 {bad switch "-gorp": must be -all, -about, -indices, -inline, -expanded, -line, -linestop, -lineanchor, -nocase, -start, or --}}
+test regexp-6.4 {regexp errors} {
+    evalInProc {
+	list [catch {regexp a( b} msg] $msg
+    }
+} {1 {couldn't compile regular expression pattern: parentheses () not balanced}}
+test regexp-6.5 {regexp errors} {
+    evalInProc {
+	list [catch {regexp a( b} msg] $msg
+    }
+} {1 {couldn't compile regular expression pattern: parentheses () not balanced}}
+test regexp-6.6 {regexp errors} {
+    evalInProc {
+	list [catch {regexp a a f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1 f1} msg] $msg
+    }
+} {0 1}
+test regexp-6.7 {regexp errors} {
+    evalInProc {
+	list [catch {regexp (x)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.) xyzzy} msg] $msg
+    }
+} {0 0}
+test regexp-6.8 {regexp errors} {
+    evalInProc {
+	catch {unset f1}
+	set f1 44
+	list [catch {regexp abc abc f1(f2)} msg] $msg
+    }
+} {1 {couldn't set variable "f1(f2)"}}
+test regexp-6.9 {regexp errors, -start bad int check} {
+    evalInProc {
+	list [catch {regexp -start bogus {^$} {}} msg] $msg
+    }
+} {1 {expected integer but got "bogus"}}
+
+test regexp-7.1 {basic regsub operation} {
+    evalInProc {
+	list [regsub aa+ xaxaaaxaa 111&222 foo] $foo
+    }
+} {1 xax111aaa222xaa}
+test regexp-7.2 {basic regsub operation} {
+    evalInProc {
+	list [regsub aa+ aaaxaa &111 foo] $foo
+    }
+} {1 aaa111xaa}
+test regexp-7.3 {basic regsub operation} {
+    evalInProc {
+	list [regsub aa+ xaxaaa 111& foo] $foo
+    }
+} {1 xax111aaa}
+test regexp-7.4 {basic regsub operation} {
+    evalInProc {
+	list [regsub aa+ aaa 11&2&333 foo] $foo
+    }
+} {1 11aaa2aaa333}
+test regexp-7.5 {basic regsub operation} {
+    evalInProc {
+	list [regsub aa+ xaxaaaxaa &2&333 foo] $foo
+    }
+} {1 xaxaaa2aaa333xaa}
+test regexp-7.6 {basic regsub operation} {
+    evalInProc {
+	list [regsub aa+ xaxaaaxaa 1&22& foo] $foo
+    }
+} {1 xax1aaa22aaaxaa}
+test regexp-7.7 {basic regsub operation} {
+    evalInProc {
+	list [regsub a(a+) xaxaaaxaa {1\122\1} foo] $foo
+    }
+} {1 xax1aa22aaxaa}
+test regexp-7.8 {basic regsub operation} {
+    evalInProc {
+	list [regsub a(a+) xaxaaaxaa {1\\\122\1} foo] $foo
+    }
+} "1 {xax1\\aa22aaxaa}"
+test regexp-7.9 {basic regsub operation} {
+    evalInProc {
+	list [regsub a(a+) xaxaaaxaa {1\\122\1} foo] $foo
+    }
+} "1 {xax1\\122aaxaa}"
+test regexp-7.10 {basic regsub operation} {
+    evalInProc {
+	list [regsub a(a+) xaxaaaxaa {1\\&\1} foo] $foo
+    }
+} "1 {xax1\\aaaaaxaa}"
+test regexp-7.11 {basic regsub operation} {
+    evalInProc {
+	list [regsub a(a+) xaxaaaxaa {1\&\1} foo] $foo
+    }
+} {1 xax1&aaxaa}
+test regexp-7.12 {basic regsub operation} {
+    evalInProc {
+	list [regsub a(a+) xaxaaaxaa {\1\1\1\1&&} foo] $foo
+    }
+} {1 xaxaaaaaaaaaaaaaaxaa}
+test regexp-7.13 {basic regsub operation} {
+    evalInProc {
+	set foo xxx
+	list [regsub abc xyz 111 foo] $foo
+    }
+} {0 xyz}
+test regexp-7.14 {basic regsub operation} {
+    evalInProc {
+	set foo xxx
+	list [regsub ^ xyz "111 " foo] $foo
+    }
+} {1 {111 xyz}}
+test regexp-7.15 {basic regsub operation} {
+    evalInProc {
+	set foo xxx
+	list [regsub -- -foo abc-foodef "111 " foo] $foo
+    }
+} {1 {abc111 def}}
+test regexp-7.16 {basic regsub operation} {
+    evalInProc {
+	set foo xxx
+	list [regsub x "" y foo] $foo
+    }
+} {0 {}}
+test regexp-7.17 {regsub utf compliance} {
+    evalInProc {
+	# if not UTF-8 aware, result is "0 1"
+	set foo "xyz555ijka\u4e4ebpqr"
+	regsub a\u4e4eb xyza\u4e4ebijka\u4e4ebpqr 555 bar
+	list [string compare $foo $bar] [regexp 4 $bar]
+    }
+} {0 0}
+
+test regexp-8.1 {case conversion in regsub} {
+    evalInProc {
+	list [regsub -nocase a(a+) xaAAaAAay & foo] $foo
+    }
+} {1 xaAAaAAay}
+test regexp-8.2 {case conversion in regsub} {
+    evalInProc {
+	list [regsub -nocase a(a+) xaAAaAAay & foo] $foo
+    }
+} {1 xaAAaAAay}
+test regexp-8.3 {case conversion in regsub} {
+    evalInProc {
+	set foo 123
+	list [regsub a(a+) xaAAaAAay & foo] $foo
+    }
+} {0 xaAAaAAay}
+test regexp-8.4 {case conversion in regsub} {
+    evalInProc {
+	set foo 123
+	list [regsub -nocase a CaDE b foo] $foo
+    }
+} {1 CbDE}
+test regexp-8.5 {case conversion in regsub} {
+    evalInProc {
+	set foo 123
+	list [regsub -nocase XYZ CxYzD b foo] $foo
+    }
+} {1 CbD}
+test regexp-8.6 {case conversion in regsub} {
+    evalInProc {
+	set x abcdefghijklmnopqrstuvwxyz1234567890
+	set x $x$x$x$x$x$x$x$x$x$x$x$x
+	set foo 123
+	list [regsub -nocase $x $x b foo] $foo
+    }
+} {1 b}
+
+test regexp-9.1 {-all option to regsub} {
+    evalInProc {
+	set foo 86
+	list [regsub -all x+ axxxbxxcxdx |&| foo] $foo
+    }
+} {4 a|xxx|b|xx|c|x|d|x|}
+test regexp-9.2 {-all option to regsub} {
+    evalInProc {
+	set foo 86
+	list [regsub -nocase -all x+ aXxXbxxcXdx |&| foo] $foo
+    }
+} {4 a|XxX|b|xx|c|X|d|x|}
+test regexp-9.3 {-all option to regsub} {
+    evalInProc {
+	set foo 86
+	list [regsub x+ axxxbxxcxdx |&| foo] $foo
+    }
+} {1 a|xxx|bxxcxdx}
+test regexp-9.4 {-all option to regsub} {
+    evalInProc {
+	set foo 86
+	list [regsub -all bc axxxbxxcxdx |&| foo] $foo
+    }
+} {0 axxxbxxcxdx}
+test regexp-9.5 {-all option to regsub} {
+    evalInProc {
+	set foo xxx
+	list [regsub -all node "node node more" yy foo] $foo
+    }
+} {2 {yy yy more}}
+test regexp-9.6 {-all option to regsub} {
+    evalInProc {
+	set foo xxx
+	list [regsub -all ^ xxx 123 foo] $foo
+    }
+} {1 123xxx}
+
+test regexp-10.1 {expanded syntax in regsub} {
+    evalInProc {
+	set foo xxx
+	list [regsub -expanded ". \#comment\n  . \#comment2" abc def foo] $foo
+    }
+} {1 defc}
+test regexp-10.2 {newline sensitivity in regsub} {
+    evalInProc {
+	set foo xxx
+	list [regsub -line {^a.*b$} "dabc\naxyb\n" 123 foo] $foo
+    }
+} "1 {dabc\n123\n}"
+test regexp-10.3 {newline sensitivity in regsub} {
+    evalInProc {
+	set foo xxx
+	list [regsub -line {^a.*b$} "dabc\naxyb\nxb" 123 foo] $foo
+    }
+} "1 {dabc\n123\nxb}"
+test regexp-10.4 {partial newline sensitivity in regsub} {
+    evalInProc {
+	set foo xxx
+	list [regsub -lineanchor {^a.*b$} "da\naxyb\nxb" 123 foo] $foo
+    }
+} "1 {da\n123}"
+test regexp-10.5 {inverse partial newline sensitivity in regsub} {
+    evalInProc {
+	set foo xxx
+	list [regsub -linestop {a.*b} "da\nbaxyb\nxb" 123 foo] $foo
+    }
+} "1 {da\nb123\nxb}"
+
+test regexp-11.1 {regsub errors} {
+    evalInProc {
+	list [catch {regsub a b c} msg] $msg
+    }
+} {1 {wrong # args: should be "regsub ?switches? exp string subSpec varName"}}
+test regexp-11.2 {regsub errors} {
+    evalInProc {
+	list [catch {regsub -nocase a b c} msg] $msg
+    }
+} {1 {wrong # args: should be "regsub ?switches? exp string subSpec varName"}}
+test regexp-11.3 {regsub errors} {
+    evalInProc {
+	list [catch {regsub -nocase -all a b c} msg] $msg
+    }
+} {1 {wrong # args: should be "regsub ?switches? exp string subSpec varName"}}
+test regexp-11.4 {regsub errors} {
+    evalInProc {
+	list [catch {regsub a b c d e f} msg] $msg
+    }
+} {1 {wrong # args: should be "regsub ?switches? exp string subSpec varName"}}
+test regexp-11.5 {regsub errors} {
+    evalInProc {
+	list [catch {regsub -gorp a b c} msg] $msg
+    }
+} {1 {bad switch "-gorp": must be -all, -nocase, -expanded, -line, -linestop, -lineanchor, -start, or --}}
+test regexp-11.6 {regsub errors} {
+    evalInProc {
+	list [catch {regsub -nocase a( b c d} msg] $msg
+    }
+} {1 {couldn't compile regular expression pattern: parentheses () not balanced}}
+test regexp-11.7 {regsub errors} {
+    evalInProc {
+	catch {unset f1}
+	set f1 44
+	list [catch {regsub -nocase aaa aaa xxx f1(f2)} msg] $msg
+    }
+} {1 {couldn't set variable "f1(f2)"}}
+test regexp-11.8 {regsub errors, -start bad int check} {
+    evalInProc {
+	list [catch {regsub -start bogus pattern string rep var} msg] $msg
+    }
+} {1 {expected integer but got "bogus"}}
+
+# This test crashes on the Mac unless you increase the Stack Space to about 1
+# Meg.  This is probably bigger than most users want... 
+# 8.2.3 regexp reduced stack space requirements, but this should be
+# tested again
+test regexp-12.1 {Tcl_RegExpExec: large number of subexpressions} {macCrash} {
+    evalInProc {
+	list [regexp (.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.)(.) abcdefghijklmnopqrstuvwxyz all a b c d e f g h i j k l m n o p q r s t u v w x y z] $all $a $b $c $d $e $f $g $h $i $j $k $l $m $n $o $p $q $r $s $t $u $v $w $x $y $z
+    }
+} {1 abcdefghijklmnopqrstuvwxyz a b c d e f g h i j k l m n o p q r s t u v w x y z}
+
+test regexp-13.1 {regsub of a very large string} {
+    # This test is designed to stress the memory subsystem in order
+    # to catch Bug #933.  It only fails if the Tcl memory allocator
+    # is in use.
+
+    set line {BEGIN_TABLE ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; END_TABLE}
+    set filedata [string repeat $line 200]
+    for {set i 1} {$i<10} {incr i} {
+	regsub -all "BEGIN_TABLE " $filedata "" newfiledata
+    }
+    set x done
+} {done}
+
+test regexp-14.1 {CompileRegexp: regexp cache} {
+    evalInProc {
+	regexp .*a b
+	regexp .*b c
+	regexp .*c d
+	regexp .*d e
+	regexp .*e f
+	set x .
+	append x *a
+	regexp $x bbba
+    }
+} 1
+test regexp-14.2 {CompileRegexp: regexp cache, different flags} {
+    evalInProc {
+	regexp .*a b
+	regexp .*b c
+	regexp .*c d
+	regexp .*d e
+	regexp .*e f
+	set x .
+	append x *a
+	regexp -nocase $x bbba
+    }
+} 1
+
+# There is no exec on the Mac ...
+
+test regexp-14.3 {CompileRegexp: regexp cache, empty regexp and empty cache} {unixOrPc} {
+    makeFile {puts [regexp {} foo]} junk.tcl
+    exec $::tcltest::tcltest junk.tcl
+} 1
+
+test regexp-15.1 {regexp -start} {
+    catch {unset x}
+    list [regexp -start -10 {\d} 1abc2de3 x] $x
+} {1 1}
+test regexp-15.2 {regexp -start} {
+    catch {unset x}
+    list [regexp -start 2 {\d} 1abc2de3 x] $x
+} {1 2}
+test regexp-15.3 {regexp -start} {
+    catch {unset x}
+    list [regexp -start 4 {\d} 1abc2de3 x] $x
+} {1 2}
+test regexp-15.4 {regexp -start} {
+    catch {unset x}
+    list [regexp -start 5 {\d} 1abc2de3 x] $x
+} {1 3}
+test regexp-15.5 {regexp -start, over end of string} {
+    catch {unset x}
+    list [regexp -start [string length 1abc2de3] {\d} 1abc2de3 x] [info exists x]
+} {0 0}
+test regexp-15.6 {regexp -start, loss of ^$ behavior} {
+    list [regexp -start 2 {^$} {}]
+} {0}
+
+test regexp-16.1 {regsub -start} {
+    catch {unset x}
+    list [regsub -all -start 2 {\d} a1b2c3d4e5 {/&} x] $x
+} {4 a1b/2c/3d/4e/5}
+test regexp-16.2 {regsub -start} {
+    catch {unset x}
+    list [regsub -all -start -25 {z} hello {/&} x] $x
+} {0 hello}
+test regexp-16.3 {regsub -start} {
+    catch {unset x}
+    list [regsub -all -start 3 {z} hello {/&} x] $x
+} {0 hello}
+test regexp-16.4 {regsub -start, \A behavior} {
+    set out {}
+    lappend out [regsub -start 0 -all {\A(\w)} {abcde} {/\1} x] $x
+    lappend out [regsub -start 2 -all {\A(\w)} {abcde} {/\1} x] $x
+} {5 /a/b/c/d/e 3 ab/c/d/e}
+
+test regexp-17.1 {regexp -inline} {
+    regexp -inline b ababa
+} {b}
+test regexp-17.2 {regexp -inline} {
+    regexp -inline (b) ababa
+} {b b}
+test regexp-17.3 {regexp -inline -indices} {
+    regexp -inline -indices (b) ababa
+} {{1 1} {1 1}}
+test regexp-17.4 {regexp -inline} {
+    regexp -inline {\w(\d+)\w} "   hello 23 there456def "
+} {e456d 456}
+test regexp-17.5 {regexp -inline no matches} {
+    regexp -inline {\w(\d+)\w} ""
+} {}
+test regexp-17.6 {regexp -inline no matches} {
+    regexp -inline hello goodbye
+} {}
+test regexp-17.7 {regexp -inline, no matchvars allowed} {
+    list [catch {regexp -inline b abc match} msg] $msg
+} {1 {regexp match variables not allowed when using -inline}}
+
+test regexp-18.1 {regexp -all} {
+    regexp -all b bbbbb
+} {5}
+test regexp-18.2 {regexp -all} {
+    regexp -all b abababbabaaaaaaaaaab
+} {6}
+test regexp-18.3 {regexp -all -inline} {
+    regexp -all -inline b abababbabaaaaaaaaaab
+} {b b b b b b}
+test regexp-18.4 {regexp -all -inline} {
+    regexp -all -inline {\w(\w)} abcdefg
+} {ab b cd d ef f}
+test regexp-18.5 {regexp -all -inline} {
+    regexp -all -inline {\w(\w)$} abcdefg
+} {fg g}
+test regexp-18.6 {regexp -all -inline} {
+    regexp -all -inline {\d+} 10:20:30:40
+} {10 20 30 40}
+test regexp-18.7 {regexp -all -inline} {
+    list [catch {regexp -all -inline b abc match} msg] $msg
+} {1 {regexp match variables not allowed when using -inline}}
+test regexp-18.8 {regexp -all} {
+    # This should not cause an infinite loop
+    regexp -all -inline {a*} a
+} {a}
+test regexp-18.9 {regexp -all} {
+    # Yes, the expected result is {a {}}.  Here's why:
+    # Start at index 0; a* matches the "a" there then stops.
+    # Go to index 1; a* matches the lambda (or {}) there then stops.  Recall
+    #   that a* matches zero or more "a"'s; thus it matches the string "b", as
+    #   there are zero or more "a"'s there.
+    # Go to index 2; this is past the end of the string, so stop.
+    regexp -all -inline {a*} ab
+} {a {}}
+test regexp-18.10 {regexp -all} {
+    # Yes, the expected result is {a {} a}.  Here's why:
+    # Start at index 0; a* matches the "a" there then stops.
+    # Go to index 1; a* matches the lambda (or {}) there then stops.   Recall
+    #   that a* matches zero or more "a"'s; thus it matches the string "b", as
+    #   there are zero or more "a"'s there.
+    # Go to index 2; a* matches the "a" there then stops.
+    # Go to index 3; this is past the end of the string, so stop.
+    regexp -all -inline {a*} aba
+} {a {} a}
+test regexp-18.11 {regexp -all} {
+    regexp -all -inline {^a} aaaa
+} {a}
+test regexp-18.12 {regexp -all -inline -indices} {
+    regexp -all -inline -indices a(b(c)d|e(f)g)h abcdhaefgh
+} {{0 4} {1 3} {2 2} {-1 -1} {5 9} {6 8} {-1 -1} {7 7}}
+
+test regexp-19.1 {regsub null replacement} {
+    regsub -all {@} {@hel@lo@} "\0a\0" result
+    list $result [string length $result]
+} "\0a\0hel\0a\0lo\0a\0 14"
+
+test regexp-20.1 {regsub shared object shimmering} {
+    # Bug #461322
+    set a abcdefghijklmnopqurstuvwxyz 
+    set b $a 
+    set c abcdefghijklmnopqurstuvwxyz0123456789 
+    regsub $a $c $b d 
+    list $d [string length $d] [string bytelength $d]
+} [list abcdefghijklmnopqurstuvwxyz0123456789 37 37]
+
+test regexp-21.1 {regexp command compiling tests} {
+    evalInProc {
+	regexp foo bar
+    }
+} 0
+test regexp-21.2 {regexp command compiling tests} {
+    evalInProc {
+	regexp {^foo$} dogfood
+    }
+} 0
+test regexp-21.3 {regexp command compiling tests} {
+    evalInProc {
+	set a foo
+	regexp {^foo$} $a
+    }
+} 1
+test regexp-21.4 {regexp command compiling tests} {
+    evalInProc {
+	regexp foo dogfood
+    }
+} 1
+test regexp-21.5 {regexp command compiling tests} {
+    evalInProc {
+	regexp foo dogfod
+    }
+} 0
+
+# cleanup
+::tcltest::cleanupTests
+return
-- 
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