* generic/tclExecute.c (TclExecuteByteCode INST_STR_MATCH):

	* generic/tclCmdMZ.c (Tcl_StringObjCmd STR_MATCH):
	* generic/tclUtf.c (TclUniCharMatch):
	* generic/tclInt.decls:  add private TclUniCharMatch function that
	* generic/tclIntDecls.h: does string match on counted unicode
	* generic/tclStubInit.c: strings.  Tcl_UniCharCaseMatch has the
	* tests/string.test:     failing that it can't handle strings or
	* tests/stringComp.test: patterns with embedded NULLs.  Added
	tests that actually try strings/pats with NULLs.  TclUniCharMatch
	should be TIPed and made public in the next minor version rev.

1 files changed, 193 insertions, 2 deletions

diff --git a/generic/tclUtf.c b/generic/tclUtf.c
index 72a23ca..6c6835c 100644
--- a/generic/tclUtf.c
+++ b/generic/tclUtf.c
@@ -8,7 +8,7 @@
  * See the file "license.terms" for information on usage and redistribution
  * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclUtf.c,v 1.29 2002/11/12 02:26:29 hobbs Exp $
+ * RCS: @(#) $Id: tclUtf.c,v 1.30 2003/02/18 02:25:45 hobbs Exp $
  */
 
 #include "tclInt.h"
@@ -1584,7 +1584,10 @@ Tcl_UniCharIsWordChar(ch)
  *
  *	See if a particular Unicode string matches a particular pattern.
  *	Allows case insensitivity.  This is the Unicode equivalent of
- *	the char* Tcl_StringCaseMatch.
+ *	the char* Tcl_StringCaseMatch.  The UniChar strings must be
+ *	NULL-terminated.  This has no provision for counted UniChar
+ *	strings, thus should not be used where NULLs are expected in the
+ *	UniChar string.  Use TclUniCharMatch where possible.
  *
  * Results:
  *	The return value is 1 if string matches pattern, and
@@ -1755,3 +1758,191 @@ Tcl_UniCharCaseMatch(string, pattern, nocase)
 	pattern++;
     }
 }
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclUniCharMatch --
+ *
+ *	See if a particular Unicode string matches a particular pattern.
+ *	Allows case insensitivity.  This is the Unicode equivalent of the
+ *	char* Tcl_StringCaseMatch.  This variant of Tcl_UniCharCaseMatch
+ *	uses counted Strings, so embedded NULLs are allowed.
+ *
+ * Results:
+ *	The return value is 1 if string matches pattern, and
+ *	0 otherwise.  The matching operation permits the following
+ *	special characters in the pattern: *?\[] (see the manual
+ *	entry for details on what these mean).
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclUniCharMatch(string, strLen, pattern, ptnLen, nocase)
+    CONST Tcl_UniChar *string;	/* Unicode String. */
+    int strLen;			/* length of String */
+    CONST Tcl_UniChar *pattern;	/* Pattern, which may contain special
+				 * characters. */
+    int ptnLen;			/* length of Pattern */
+    int nocase;			/* 0 for case sensitive, 1 for insensitive */
+{
+    CONST Tcl_UniChar *stringEnd, *patternEnd;
+    Tcl_UniChar p;
+
+    stringEnd  = string + strLen;
+    patternEnd = pattern + ptnLen;
+
+    while (1) {
+	/*
+	 * See if we're at the end of both the pattern and the string.  If
+	 * so, we succeeded.  If we're at the end of the pattern but not at
+	 * the end of the string, we failed.
+	 */
+
+	if (pattern == patternEnd) {
+	    return (string == stringEnd);
+	}
+	p = *pattern;
+	if ((string == stringEnd) && (p != '*')) {
+	    return 0;
+	}
+
+	/*
+	 * Check for a "*" as the next pattern character.  It matches any
+	 * substring.  We handle this by skipping all the characters up to the
+	 * next matching one in the pattern, and then calling ourselves
+	 * recursively for each postfix of string, until either we match or we
+	 * reach the end of the string.
+	 */
+	
+	if (p == '*') {
+	    /*
+	     * Skip all successive *'s in the pattern
+	     */
+	    while (*(++pattern) == '*') {}
+	    if (pattern == patternEnd) {
+		return 1;
+	    }
+	    p = *pattern;
+	    if (nocase) {
+		p = Tcl_UniCharToLower(p);
+	    }
+	    while (1) {
+		/*
+		 * Optimization for matching - cruise through the string
+		 * quickly if the next char in the pattern isn't a special
+		 * character
+		 */
+		if ((p != '[') && (p != '?') && (p != '\\')) {
+		    if (nocase) {
+			while ((string < stringEnd) && (p != *string)
+				&& (p != Tcl_UniCharToLower(*string))) {
+			    string++;
+			}
+		    } else {
+			while ((string < stringEnd) && (p != *string)) {
+			    string++;
+			}
+		    }
+		}
+		if (TclUniCharMatch(string, stringEnd - string,
+			pattern, patternEnd - pattern, nocase)) {
+		    return 1;
+		}
+		if (string == stringEnd) {
+		    return 0;
+		}
+		string++;
+	    }
+	}
+
+	/*
+	 * Check for a "?" as the next pattern character.  It matches
+	 * any single character.
+	 */
+
+	if (p == '?') {
+	    pattern++;
+	    string++;
+	    continue;
+	}
+
+	/*
+	 * Check for a "[" as the next pattern character.  It is followed
+	 * by a list of characters that are acceptable, or by a range
+	 * (two characters separated by "-").
+	 */
+	
+	if (p == '[') {
+	    Tcl_UniChar ch1, startChar, endChar;
+
+	    pattern++;
+	    ch1 = (nocase ? Tcl_UniCharToLower(*string) : *string);
+	    string++;
+	    while (1) {
+		if ((*pattern == ']') || (pattern == patternEnd)) {
+		    return 0;
+		}
+		startChar = (nocase ? Tcl_UniCharToLower(*pattern) : *pattern);
+		pattern++;
+		if (*pattern == '-') {
+		    pattern++;
+		    if (pattern == patternEnd) {
+			return 0;
+		    }
+		    endChar = (nocase ? Tcl_UniCharToLower(*pattern)
+			    : *pattern);
+		    pattern++;
+		    if (((startChar <= ch1) && (ch1 <= endChar))
+			    || ((endChar <= ch1) && (ch1 <= startChar))) {
+			/*
+			 * Matches ranges of form [a-z] or [z-a].
+			 */
+			break;
+		    }
+		} else if (startChar == ch1) {
+		    break;
+		}
+	    }
+	    while (*pattern != ']') {
+		if (pattern == patternEnd) {
+		    pattern--;
+		    break;
+		}
+		pattern++;
+	    }
+	    pattern++;
+	    continue;
+	}
+
+	/*
+	 * If the next pattern character is '\', just strip off the '\'
+	 * so we do exact matching on the character that follows.
+	 */
+
+	if (p == '\\') {
+	    if (++pattern == patternEnd) {
+		return 0;
+	    }
+	}
+
+	/*
+	 * There's no special character.  Just make sure that the next
+	 * bytes of each string match.
+	 */
+
+	if (nocase) {
+	    if (Tcl_UniCharToLower(*string) != Tcl_UniCharToLower(*pattern)) {
+		return 0;
+	    }
+	} else if (*string != *pattern) {
+	    return 0;
+	}
+	string++;
+	pattern++;
+    }
+}