diff options
Diffstat (limited to 'generic/tclCmdMZ.c')
| -rw-r--r-- | generic/tclCmdMZ.c | 1760 |
1 files changed, 1246 insertions, 514 deletions
diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c index 5e7b212..00c9f2f 100644 --- a/generic/tclCmdMZ.c +++ b/generic/tclCmdMZ.c @@ -10,18 +10,61 @@ * Copyright (c) 1994-1997 Sun Microsystems, Inc. * Copyright (c) 1998-2000 Scriptics Corporation. * Copyright (c) 2002 ActiveState Corporation. - * Copyright (c) 2003 Donal K. Fellows. + * Copyright (c) 2003-2009 Donal K. Fellows. * * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. - * - * RCS: @(#) $Id: tclCmdMZ.c,v 1.163.2.1 2008/09/18 15:00:58 dgp Exp $ */ #include "tclInt.h" #include "tclRegexp.h" - +#include "tclStringTrim.h" + +static inline Tcl_Obj * During(Tcl_Interp *interp, int resultCode, + Tcl_Obj *oldOptions, Tcl_Obj *errorInfo); +static int SwitchPostProc(ClientData data[], Tcl_Interp *interp, + int result); +static int TryPostBody(ClientData data[], Tcl_Interp *interp, + int result); +static int TryPostFinal(ClientData data[], Tcl_Interp *interp, + int result); +static int TryPostHandler(ClientData data[], Tcl_Interp *interp, + int result); static int UniCharIsAscii(int character); +static int UniCharIsHexDigit(int character); + +/* + * Default set of characters to trim in [string trim] and friends. This is a + * UTF-8 literal string containing all Unicode space characters [TIP #413] + */ + +const char tclDefaultTrimSet[] = + "\x09\x0a\x0b\x0c\x0d " /* ASCII */ + "\xc0\x80" /* nul (U+0000) */ + "\xc2\x85" /* next line (U+0085) */ + "\xc2\xa0" /* non-breaking space (U+00a0) */ + "\xe1\x9a\x80" /* ogham space mark (U+1680) */ + "\xe1\xa0\x8e" /* mongolian vowel separator (U+180e) */ + "\xe2\x80\x80" /* en quad (U+2000) */ + "\xe2\x80\x81" /* em quad (U+2001) */ + "\xe2\x80\x82" /* en space (U+2002) */ + "\xe2\x80\x83" /* em space (U+2003) */ + "\xe2\x80\x84" /* three-per-em space (U+2004) */ + "\xe2\x80\x85" /* four-per-em space (U+2005) */ + "\xe2\x80\x86" /* six-per-em space (U+2006) */ + "\xe2\x80\x87" /* figure space (U+2007) */ + "\xe2\x80\x88" /* punctuation space (U+2008) */ + "\xe2\x80\x89" /* thin space (U+2009) */ + "\xe2\x80\x8a" /* hair space (U+200a) */ + "\xe2\x80\x8b" /* zero width space (U+200b) */ + "\xe2\x80\xa8" /* line separator (U+2028) */ + "\xe2\x80\xa9" /* paragraph separator (U+2029) */ + "\xe2\x80\xaf" /* narrow no-break space (U+202f) */ + "\xe2\x81\x9f" /* medium mathematical space (U+205f) */ + "\xe2\x81\xa0" /* word joiner (U+2060) */ + "\xe3\x80\x80" /* ideographic space (U+3000) */ + "\xef\xbb\xbf" /* zero width no-break space (U+feff) */ +; /* *---------------------------------------------------------------------- @@ -45,7 +88,7 @@ Tcl_PwdObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { Tcl_Obj *retVal; @@ -85,14 +128,14 @@ Tcl_RegexpObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { int i, indices, match, about, offset, all, doinline, numMatchesSaved; - int cflags, eflags, stringLength; + int cflags, eflags, stringLength, matchLength; Tcl_RegExp regExpr; Tcl_Obj *objPtr, *startIndex = NULL, *resultPtr = NULL; Tcl_RegExpInfo info; - static CONST char *options[] = { + static const char *const options[] = { "-all", "-about", "-indices", "-inline", "-expanded", "-line", "-linestop", "-lineanchor", "-nocase", "-start", "--", NULL @@ -106,13 +149,12 @@ Tcl_RegexpObjCmd( indices = 0; about = 0; cflags = TCL_REG_ADVANCED; - eflags = 0; offset = 0; all = 0; doinline = 0; for (i = 1; i < objc; i++) { - char *name; + const char *name; int index; name = TclGetString(objv[i]); @@ -175,7 +217,7 @@ Tcl_RegexpObjCmd( endOfForLoop: if ((objc - i) < (2 - about)) { Tcl_WrongNumArgs(interp, 1, objv, - "?switches? exp string ?matchVar? ?subMatchVar subMatchVar ...?"); + "?-switch ...? exp string ?matchVar? ?subMatchVar ...?"); goto optionError; } objc -= i; @@ -187,8 +229,8 @@ Tcl_RegexpObjCmd( */ if (doinline && ((objc - 2) != 0)) { - Tcl_AppendResult(interp, "regexp match variables not allowed" - " when using -inline", NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "regexp match variables not allowed when using -inline", -1)); goto optionError; } @@ -230,15 +272,6 @@ Tcl_RegexpObjCmd( return TCL_ERROR; } - if (offset > 0) { - /* - * Add flag if using offset (string is part of a larger string), so - * that "^" won't match. - */ - - eflags |= TCL_REG_NOTBOL; - } - objc -= 2; objv += 2; @@ -266,12 +299,26 @@ Tcl_RegexpObjCmd( */ while (1) { - match = Tcl_RegExpExecObj(interp, regExpr, objPtr, - offset /* offset */, numMatchesSaved, eflags - | ((offset > 0 && - (Tcl_GetUniChar(objPtr,offset-1) != (Tcl_UniChar)'\n')) - ? TCL_REG_NOTBOL : 0)); + /* + * Pass either 0 or TCL_REG_NOTBOL in the eflags. Passing + * TCL_REG_NOTBOL indicates that the character at offset should not be + * considered the start of the line. If for example the pattern {^} is + * passed and -start is positive, then the pattern will not match the + * start of the string unless the previous character is a newline. + */ + + if (offset == 0) { + eflags = 0; + } else if (offset > stringLength) { + eflags = TCL_REG_NOTBOL; + } else if (Tcl_GetUniChar(objPtr, offset-1) == (Tcl_UniChar)'\n') { + eflags = 0; + } else { + eflags = TCL_REG_NOTBOL; + } + match = Tcl_RegExpExecObj(interp, regExpr, objPtr, offset, + numMatchesSaved, eflags); if (match < 0) { return TCL_ERROR; } @@ -364,11 +411,8 @@ Tcl_RegexpObjCmd( return TCL_ERROR; } } else { - Tcl_Obj *valuePtr; - valuePtr = Tcl_ObjSetVar2(interp, objv[i], NULL, newPtr, 0); - if (valuePtr == NULL) { - Tcl_AppendResult(interp, "couldn't set variable \"", - TclGetString(objv[i]), "\"", NULL); + if (Tcl_ObjSetVar2(interp, objv[i], NULL, newPtr, + TCL_LEAVE_ERR_MSG) == NULL) { return TCL_ERROR; } } @@ -388,12 +432,19 @@ Tcl_RegexpObjCmd( * offset never changes). */ - if (info.matches[0].end == 0) { + matchLength = (info.matches[0].end - info.matches[0].start); + + offset += info.matches[0].end; + + /* + * A match of length zero could happen for {^} {$} or {.*} and in + * these cases we always want to bump the index up one. + */ + + if (matchLength == 0) { offset++; } - offset += info.matches[0].end; all++; - eflags |= TCL_REG_NOTBOL; if (offset >= stringLength) { break; } @@ -435,7 +486,7 @@ Tcl_RegsubObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { int idx, result, cflags, all, wlen, wsublen, numMatches, offset; int start, end, subStart, subEnd, match; @@ -444,7 +495,7 @@ Tcl_RegsubObjCmd( Tcl_Obj *resultPtr, *subPtr, *objPtr, *startIndex = NULL; Tcl_UniChar ch, *wsrc, *wfirstChar, *wstring, *wsubspec, *wend; - static CONST char *options[] = { + static const char *const options[] = { "-all", "-nocase", "-expanded", "-line", "-linestop", "-lineanchor", "-start", "--", NULL @@ -461,7 +512,7 @@ Tcl_RegsubObjCmd( resultPtr = NULL; for (idx = 1; idx < objc; idx++) { - char *name; + const char *name; int index; name = TclGetString(objv[idx]); @@ -515,7 +566,7 @@ Tcl_RegsubObjCmd( endOfForLoop: if (objc-idx < 3 || objc-idx > 4) { Tcl_WrongNumArgs(interp, 1, objv, - "?switches? exp string subSpec ?varName?"); + "?-switch ...? exp string subSpec ?varName?"); optionError: if (startIndex) { Tcl_DecrRefCount(startIndex); @@ -545,7 +596,7 @@ Tcl_RegsubObjCmd( */ int slen, nocase; - int (*strCmpFn)(CONST Tcl_UniChar*,CONST Tcl_UniChar*,unsigned long); + int (*strCmpFn)(const Tcl_UniChar*,const Tcl_UniChar*,unsigned long); Tcl_UniChar *p, wsrclc; numMatches = 0; @@ -789,9 +840,8 @@ Tcl_RegsubObjCmd( Tcl_AppendUnicodeToObj(resultPtr, wstring + offset, wlen - offset); } if (objc == 4) { - if (Tcl_ObjSetVar2(interp, objv[3], NULL, resultPtr, 0) == NULL) { - Tcl_AppendResult(interp, "couldn't set variable \"", - TclGetString(objv[3]), "\"", NULL); + if (Tcl_ObjSetVar2(interp, objv[3], NULL, resultPtr, + TCL_LEAVE_ERR_MSG) == NULL) { result = TCL_ERROR; } else { /* @@ -844,9 +894,9 @@ Tcl_RenameObjCmd( ClientData dummy, /* Arbitrary value passed to the command. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - char *oldName, *newName; + const char *oldName, *newName; if (objc != 3) { Tcl_WrongNumArgs(interp, 1, objv, "oldName newName"); @@ -880,7 +930,7 @@ Tcl_ReturnObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { int code, level; Tcl_Obj *returnOpts; @@ -927,9 +977,19 @@ Tcl_SourceObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - CONST char *encodingName = NULL; + return Tcl_NRCallObjProc(interp, TclNRSourceObjCmd, dummy, objc, objv); +} + +int +TclNRSourceObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + const char *encodingName = NULL; Tcl_Obj *fileName; if (objc != 2 && objc !=4) { @@ -940,7 +1000,7 @@ Tcl_SourceObjCmd( fileName = objv[objc-1]; if (objc == 4) { - static CONST char *options[] = { + static const char *const options[] = { "-encoding", NULL }; int index; @@ -952,7 +1012,7 @@ Tcl_SourceObjCmd( encodingName = TclGetString(objv[2]); } - return Tcl_FSEvalFileEx(interp, fileName, encodingName); + return TclNREvalFile(interp, fileName, encodingName); } /* @@ -977,11 +1037,13 @@ Tcl_SplitObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { Tcl_UniChar ch; int len; - char *splitChars, *stringPtr, *end; + const char *splitChars; + const char *stringPtr; + const char *end; int splitCharLen, stringLen; Tcl_Obj *listPtr, *objPtr; @@ -1026,7 +1088,8 @@ Tcl_SplitObjCmd( * Assume Tcl_UniChar is an integral type... */ - hPtr = Tcl_CreateHashEntry(&charReuseTable, (char*)0+ch, &isNew); + hPtr = Tcl_CreateHashEntry(&charReuseTable, INT2PTR((int) ch), + &isNew); if (isNew) { TclNewStringObj(objPtr, stringPtr, len); @@ -1034,9 +1097,9 @@ Tcl_SplitObjCmd( * Don't need to fiddle with refcount... */ - Tcl_SetHashValue(hPtr, (ClientData) objPtr); + Tcl_SetHashValue(hPtr, objPtr); } else { - objPtr = (Tcl_Obj *) Tcl_GetHashValue(hPtr); + objPtr = Tcl_GetHashValue(hPtr); } Tcl_ListObjAppendElement(NULL, listPtr, objPtr); } @@ -1059,7 +1122,7 @@ Tcl_SplitObjCmd( TclNewStringObj(objPtr, stringPtr, end - stringPtr); Tcl_ListObjAppendElement(NULL, listPtr, objPtr); } else { - char *element, *p, *splitEnd; + const char *element, *p, *splitEnd; int splitLen; Tcl_UniChar splitChar; @@ -1096,7 +1159,8 @@ Tcl_SplitObjCmd( * StringFirstCmd -- * * This procedure is invoked to process the "string first" Tcl command. - * See the user documentation for details on what it does. + * See the user documentation for details on what it does. Note that this + * command only functions correctly on properly formed Tcl UTF strings. * * Results: * A standard Tcl result. @@ -1114,8 +1178,8 @@ StringFirstCmd( int objc, /* Number of arguments. */ Tcl_Obj *const objv[]) /* Argument objects. */ { - Tcl_UniChar *ustring1, *ustring2; - int match, start, length1, length2; + Tcl_UniChar *needleStr, *haystackStr; + int match, start, needleLen, haystackLen; if (objc < 3 || objc > 4) { Tcl_WrongNumArgs(interp, 1, objv, @@ -1124,15 +1188,15 @@ StringFirstCmd( } /* - * We are searching string2 for the sequence string1. + * We are searching haystackStr for the sequence needleStr. */ match = -1; start = 0; - length2 = -1; + haystackLen = -1; - ustring1 = Tcl_GetUnicodeFromObj(objv[1], &length1); - ustring2 = Tcl_GetUnicodeFromObj(objv[2], &length2); + needleStr = Tcl_GetUnicodeFromObj(objv[1], &needleLen); + haystackStr = Tcl_GetUnicodeFromObj(objv[2], &haystackLen); if (objc == 4) { /* @@ -1140,7 +1204,8 @@ StringFirstCmd( * point in the string before we think about a match. */ - if (TclGetIntForIndexM(interp, objv[3], length2-1, &start) != TCL_OK){ + if (TclGetIntForIndexM(interp, objv[3], haystackLen-1, + &start) != TCL_OK){ return TCL_ERROR; } @@ -1148,14 +1213,14 @@ StringFirstCmd( * Reread to prevent shimmering problems. */ - ustring1 = Tcl_GetUnicodeFromObj(objv[1], &length1); - ustring2 = Tcl_GetUnicodeFromObj(objv[2], &length2); + needleStr = Tcl_GetUnicodeFromObj(objv[1], &needleLen); + haystackStr = Tcl_GetUnicodeFromObj(objv[2], &haystackLen); - if (start >= length2) { + if (start >= haystackLen) { goto str_first_done; } else if (start > 0) { - ustring2 += start; - length2 -= start; + haystackStr += start; + haystackLen -= start; } else if (start < 0) { /* * Invalid start index mapped to string start; Bug #423581 @@ -1165,18 +1230,23 @@ StringFirstCmd( } } - if (length1 > 0) { + /* + * If the length of the needle is more than the length of the haystack, it + * cannot be contained in there so we can avoid searching. [Bug 2960021] + */ + + if (needleLen > 0 && needleLen <= haystackLen) { register Tcl_UniChar *p, *end; - end = ustring2 + length2 - length1 + 1; - for (p = ustring2; p < end; p++) { + end = haystackStr + haystackLen - needleLen + 1; + for (p = haystackStr; p < end; p++) { /* * Scan forward to find the first character. */ - if ((*p == *ustring1) && (TclUniCharNcmp(ustring1, p, - (unsigned long) length1) == 0)) { - match = p - ustring2; + if ((*p == *needleStr) && (TclUniCharNcmp(needleStr, p, + (unsigned long) needleLen) == 0)) { + match = p - haystackStr; break; } } @@ -1202,7 +1272,8 @@ StringFirstCmd( * StringLastCmd -- * * This procedure is invoked to process the "string last" Tcl command. - * See the user documentation for details on what it does. + * See the user documentation for details on what it does. Note that this + * command only functions correctly on properly formed Tcl UTF strings. * * Results: * A standard Tcl result. @@ -1220,8 +1291,8 @@ StringLastCmd( int objc, /* Number of arguments. */ Tcl_Obj *const objv[]) /* Argument objects. */ { - Tcl_UniChar *ustring1, *ustring2, *p; - int match, start, length1, length2; + Tcl_UniChar *needleStr, *haystackStr, *p; + int match, start, needleLen, haystackLen; if (objc < 3 || objc > 4) { Tcl_WrongNumArgs(interp, 1, objv, @@ -1230,15 +1301,15 @@ StringLastCmd( } /* - * We are searching string2 for the sequence string1. + * We are searching haystackString for the sequence needleString. */ match = -1; start = 0; - length2 = -1; + haystackLen = -1; - ustring1 = Tcl_GetUnicodeFromObj(objv[1], &length1); - ustring2 = Tcl_GetUnicodeFromObj(objv[2], &length2); + needleStr = Tcl_GetUnicodeFromObj(objv[1], &needleLen); + haystackStr = Tcl_GetUnicodeFromObj(objv[2], &haystackLen); if (objc == 4) { /* @@ -1246,7 +1317,8 @@ StringLastCmd( * range to that char index in the string */ - if (TclGetIntForIndexM(interp, objv[3], length2-1, &start) != TCL_OK){ + if (TclGetIntForIndexM(interp, objv[3], haystackLen-1, + &start) != TCL_OK){ return TCL_ERROR; } @@ -1254,29 +1326,34 @@ StringLastCmd( * Reread to prevent shimmering problems. */ - ustring1 = Tcl_GetUnicodeFromObj(objv[1], &length1); - ustring2 = Tcl_GetUnicodeFromObj(objv[2], &length2); + needleStr = Tcl_GetUnicodeFromObj(objv[1], &needleLen); + haystackStr = Tcl_GetUnicodeFromObj(objv[2], &haystackLen); if (start < 0) { goto str_last_done; - } else if (start < length2) { - p = ustring2 + start + 1 - length1; + } else if (start < haystackLen) { + p = haystackStr + start + 1 - needleLen; } else { - p = ustring2 + length2 - length1; + p = haystackStr + haystackLen - needleLen; } } else { - p = ustring2 + length2 - length1; + p = haystackStr + haystackLen - needleLen; } - if (length1 > 0) { - for (; p >= ustring2; p--) { + /* + * If the length of the needle is more than the length of the haystack, it + * cannot be contained in there so we can avoid searching. [Bug 2960021] + */ + + if (needleLen > 0 && needleLen <= haystackLen) { + for (; p >= haystackStr; p--) { /* * Scan backwards to find the first character. */ - if ((*p == *ustring1) && !memcmp(ustring1, p, - sizeof(Tcl_UniChar) * (size_t)length1)) { - match = p - ustring2; + if ((*p == *needleStr) && !memcmp(needleStr, p, + sizeof(Tcl_UniChar) * (size_t)needleLen)) { + match = p - haystackStr; break; } } @@ -1320,37 +1397,29 @@ StringIndexCmd( } /* - * If we have a ByteArray object, avoid indexing in the Utf string since - * the byte array contains one byte per character. Otherwise, use the - * Unicode string rep to get the index'th char. + * Get the char length to calulate what 'end' means. */ - if (objv[1]->typePtr == &tclByteArrayType) { - const unsigned char *string = - Tcl_GetByteArrayFromObj(objv[1], &length); + length = Tcl_GetCharLength(objv[1]); + if (TclGetIntForIndexM(interp, objv[2], length-1, &index) != TCL_OK) { + return TCL_ERROR; + } + + if ((index >= 0) && (index < length)) { + Tcl_UniChar ch = Tcl_GetUniChar(objv[1], index); - if (TclGetIntForIndexM(interp, objv[2], length-1, &index) != TCL_OK){ - return TCL_ERROR; - } - string = Tcl_GetByteArrayFromObj(objv[1], &length); - if ((index >= 0) && (index < length)) { - Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(string + index, 1)); - } - } else { /* - * Get Unicode char length to calulate what 'end' means. + * If we have a ByteArray object, we're careful to generate a new + * bytearray for a result. */ - length = Tcl_GetCharLength(objv[1]); + if (TclIsPureByteArray(objv[1])) { + unsigned char uch = (unsigned char) ch; - if (TclGetIntForIndexM(interp, objv[2], length-1, &index) != TCL_OK){ - return TCL_ERROR; - } - if ((index >= 0) && (index < length)) { + Tcl_SetObjResult(interp, Tcl_NewByteArrayObj(&uch, 1)); + } else { char buf[TCL_UTF_MAX]; - Tcl_UniChar ch; - ch = Tcl_GetUniChar(objv[1], index); length = Tcl_UniCharToUtf(ch, buf); Tcl_SetObjResult(interp, Tcl_NewStringObj(buf, length)); } @@ -1383,27 +1452,34 @@ StringIsCmd( int objc, /* Number of arguments. */ Tcl_Obj *const objv[]) /* Argument objects. */ { - const char *string1, *string2, *end, *stop; + const char *string1, *end, *stop; Tcl_UniChar ch; int (*chcomp)(int) = NULL; /* The UniChar comparison function. */ int i, failat = 0, result = 1, strict = 0, index, length1, length2; Tcl_Obj *objPtr, *failVarObj = NULL; Tcl_WideInt w; - static const char *isOptions[] = { + static const char *const isClasses[] = { "alnum", "alpha", "ascii", "control", - "boolean", "digit", "double", "false", - "graph", "integer", "list", "lower", - "print", "punct", "space", "true", - "upper", "wideinteger", "wordchar", "xdigit", - NULL + "boolean", "digit", "double", "entier", + "false", "graph", "integer", "list", + "lower", "print", "punct", "space", + "true", "upper", "wideinteger", "wordchar", + "xdigit", NULL + }; + enum isClasses { + STR_IS_ALNUM, STR_IS_ALPHA, STR_IS_ASCII, STR_IS_CONTROL, + STR_IS_BOOL, STR_IS_DIGIT, STR_IS_DOUBLE, STR_IS_ENTIER, + STR_IS_FALSE, STR_IS_GRAPH, STR_IS_INT, STR_IS_LIST, + STR_IS_LOWER, STR_IS_PRINT, STR_IS_PUNCT, STR_IS_SPACE, + STR_IS_TRUE, STR_IS_UPPER, STR_IS_WIDE, STR_IS_WORD, + STR_IS_XDIGIT + }; + static const char *const isOptions[] = { + "-strict", "-failindex", NULL }; enum isOptions { - STR_IS_ALNUM, STR_IS_ALPHA, STR_IS_ASCII, STR_IS_CONTROL, - STR_IS_BOOL, STR_IS_DIGIT, STR_IS_DOUBLE, STR_IS_FALSE, - STR_IS_GRAPH, STR_IS_INT, STR_IS_LIST, STR_IS_LOWER, - STR_IS_PRINT, STR_IS_PUNCT, STR_IS_SPACE, STR_IS_TRUE, - STR_IS_UPPER, STR_IS_WIDE, STR_IS_WORD, STR_IS_XDIGIT + OPT_STRICT, OPT_FAILIDX }; if (objc < 3 || objc > 6) { @@ -1411,29 +1487,31 @@ StringIsCmd( "class ?-strict? ?-failindex var? str"); return TCL_ERROR; } - if (Tcl_GetIndexFromObj(interp, objv[1], isOptions, "class", 0, + if (Tcl_GetIndexFromObj(interp, objv[1], isClasses, "class", 0, &index) != TCL_OK) { return TCL_ERROR; } if (objc != 3) { for (i = 2; i < objc-1; i++) { - string2 = TclGetStringFromObj(objv[i], &length2); - if ((length2 > 1) && - strncmp(string2, "-strict", (size_t) length2) == 0) { + int idx2; + + if (Tcl_GetIndexFromObj(interp, objv[i], isOptions, "option", 0, + &idx2) != TCL_OK) { + return TCL_ERROR; + } + switch ((enum isOptions) idx2) { + case OPT_STRICT: strict = 1; - } else if ((length2 > 1) && - strncmp(string2, "-failindex", (size_t)length2) == 0){ + break; + case OPT_FAILIDX: if (i+1 >= objc-1) { Tcl_WrongNumArgs(interp, 2, objv, "?-strict? ?-failindex var? str"); return TCL_ERROR; } failVarObj = objv[++i]; - } else { - Tcl_AppendResult(interp, "bad option \"", string2, - "\": must be -strict or -failindex", NULL); - return TCL_ERROR; + break; } } } @@ -1446,20 +1524,12 @@ StringIsCmd( */ objPtr = objv[objc-1]; - string1 = TclGetStringFromObj(objPtr, &length1); - if (length1 == 0 && index != STR_IS_LIST) { - if (strict) { - result = 0; - } - goto str_is_done; - } - end = string1 + length1; /* * When entering here, result == 1 and failat == 0. */ - switch ((enum isOptions) index) { + switch ((enum isClasses) index) { case STR_IS_ALNUM: chcomp = Tcl_UniCharIsAlnum; break; @@ -1472,8 +1542,14 @@ StringIsCmd( case STR_IS_BOOL: case STR_IS_TRUE: case STR_IS_FALSE: - if (TCL_OK != Tcl_ConvertToType(NULL, objPtr, &tclBooleanType)) { - result = 0; + if ((objPtr->typePtr != &tclBooleanType) + && (TCL_OK != TclSetBooleanFromAny(NULL, objPtr))) { + if (strict) { + result = 0; + } else { + string1 = TclGetStringFromObj(objPtr, &length1); + result = length1 == 0; + } } else if (((index == STR_IS_TRUE) && objPtr->internalRep.longValue == 0) || ((index == STR_IS_FALSE) && @@ -1491,12 +1567,20 @@ StringIsCmd( /* TODO */ if ((objPtr->typePtr == &tclDoubleType) || (objPtr->typePtr == &tclIntType) || -#ifndef NO_WIDE_TYPE +#ifndef TCL_WIDE_INT_IS_LONG (objPtr->typePtr == &tclWideIntType) || #endif (objPtr->typePtr == &tclBignumType)) { break; } + string1 = TclGetStringFromObj(objPtr, &length1); + if (length1 == 0) { + if (strict) { + result = 0; + } + goto str_is_done; + } + end = string1 + length1; if (TclParseNumber(NULL, objPtr, NULL, NULL, -1, (const char **) &stop, 0) != TCL_OK) { result = 0; @@ -1506,7 +1590,6 @@ StringIsCmd( if (stop < end) { result = 0; TclFreeIntRep(objPtr); - objPtr->typePtr = NULL; } } break; @@ -1519,14 +1602,65 @@ StringIsCmd( break; } goto failedIntParse; + case STR_IS_ENTIER: + if ((objPtr->typePtr == &tclIntType) || +#ifndef TCL_WIDE_INT_IS_LONG + (objPtr->typePtr == &tclWideIntType) || +#endif + (objPtr->typePtr == &tclBignumType)) { + break; + } + string1 = TclGetStringFromObj(objPtr, &length1); + if (length1 == 0) { + if (strict) { + result = 0; + } + goto str_is_done; + } + end = string1 + length1; + if (TclParseNumber(NULL, objPtr, NULL, NULL, -1, + (const char **) &stop, TCL_PARSE_INTEGER_ONLY) == TCL_OK) { + if (stop == end) { + /* + * Entire string parses as an integer. + */ + + break; + } else { + /* + * Some prefix parsed as an integer, but not the whole string, + * so return failure index as the point where parsing stopped. + * Clear out the internal rep, since keeping it would leave + * *objPtr in an inconsistent state. + */ + + result = 0; + failat = stop - string1; + TclFreeIntRep(objPtr); + } + } else { + /* + * No prefix is a valid integer. Fail at beginning. + */ + + result = 0; + failat = 0; + } + break; case STR_IS_WIDE: if (TCL_OK == Tcl_GetWideIntFromObj(NULL, objPtr, &w)) { break; } failedIntParse: + string1 = TclGetStringFromObj(objPtr, &length1); + if (length1 == 0) { + if (strict) { + result = 0; + } + goto str_is_done; + } result = 0; - if (failVarObj == NULL) { /* * Don't bother computing the failure point if we're not going to @@ -1535,6 +1669,7 @@ StringIsCmd( break; } + end = string1 + length1; if (TclParseNumber(NULL, objPtr, NULL, NULL, -1, (const char **) &stop, TCL_PARSE_INTEGER_ONLY) == TCL_OK) { if (stop == end) { @@ -1556,7 +1691,6 @@ StringIsCmd( failat = stop - string1; TclFreeIntRep(objPtr); - objPtr->typePtr = NULL; } } else { /* @@ -1583,16 +1717,17 @@ StringIsCmd( * SetListFromAny(). */ - const char *elemStart, *nextElem, *limit; - int lenRemain, elemSize, hasBrace; + const char *elemStart, *nextElem; + int lenRemain, elemSize; register const char *p; - limit = string1 + length1; + string1 = TclGetStringFromObj(objPtr, &length1); + end = string1 + length1; failat = -1; for (p=string1, lenRemain=length1; lenRemain > 0; - p=nextElem, lenRemain=limit-nextElem) { + p=nextElem, lenRemain=end-nextElem) { if (TCL_ERROR == TclFindElement(NULL, p, lenRemain, - &elemStart, &nextElem, &elemSize, &hasBrace)) { + &elemStart, &nextElem, &elemSize, NULL)) { Tcl_Obj *tmpStr; /* @@ -1605,7 +1740,7 @@ StringIsCmd( * if it is the first "element" that has the failure. */ - while (isspace(UCHAR(*p))) { /* INTL: ? */ + while (TclIsSpaceProc(*p)) { p++; } TclNewStringObj(tmpStr, string1, p-string1); @@ -1636,17 +1771,19 @@ StringIsCmd( chcomp = Tcl_UniCharIsWordChar; break; case STR_IS_XDIGIT: - for (; string1 < end; string1++, failat++) { - /* INTL: We assume unicode is bad for this class. */ - if ((*((unsigned char *)string1) >= 0xC0) || - !isxdigit(*(unsigned char *)string1)) { - result = 0; - break; - } - } + chcomp = UniCharIsHexDigit; break; } + if (chcomp != NULL) { + string1 = TclGetStringFromObj(objPtr, &length1); + if (length1 == 0) { + if (strict) { + result = 0; + } + goto str_is_done; + } + end = string1 + length1; for (; string1 < end; string1 += length2, failat++) { length2 = TclUtfToUniChar(string1, &ch); if (!chcomp(ch)) { @@ -1677,6 +1814,13 @@ UniCharIsAscii( { return (character >= 0) && (character < 0x80); } + +static int +UniCharIsHexDigit( + int character) +{ + return (character >= 0) && (character < 0x80) && isxdigit(character); +} /* *---------------------------------------------------------------------- @@ -1721,8 +1865,10 @@ StringMapCmd( strncmp(string, "-nocase", (size_t) length2) == 0) { nocase = 1; } else { - Tcl_AppendResult(interp, "bad option \"", string, - "\": must be -nocase", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad option \"%s\": must be -nocase", string)); + Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "option", + string, NULL); return TCL_ERROR; } } @@ -1759,8 +1905,7 @@ StringMapCmd( * adapt this code... */ - mapElemv = (Tcl_Obj **) - TclStackAlloc(interp, sizeof(Tcl_Obj *) * mapElemc); + mapElemv = TclStackAlloc(interp, sizeof(Tcl_Obj *) * mapElemc); Tcl_DictObjFirst(interp, objv[objc-2], &search, mapElemv+0, mapElemv+1, &done); for (i=2 ; i<mapElemc ; i+=2) { @@ -1786,6 +1931,8 @@ StringMapCmd( Tcl_SetObjResult(interp, Tcl_NewStringObj("char map list unbalanced", -1)); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "MAP", + "UNBALANCED", NULL); return TCL_ERROR; } } @@ -1869,12 +2016,10 @@ StringMapCmd( * case. */ - mapStrings = (Tcl_UniChar **) TclStackAlloc(interp, - mapElemc * 2 * sizeof(Tcl_UniChar *)); - mapLens = (int *) TclStackAlloc(interp, mapElemc * 2 * sizeof(int)); + mapStrings = TclStackAlloc(interp, mapElemc*2*sizeof(Tcl_UniChar *)); + mapLens = TclStackAlloc(interp, mapElemc * 2 * sizeof(int)); if (nocase) { - u2lc = (Tcl_UniChar *) TclStackAlloc(interp, - mapElemc * sizeof(Tcl_UniChar)); + u2lc = TclStackAlloc(interp, mapElemc * sizeof(Tcl_UniChar)); } for (index = 0; index < mapElemc; index++) { mapStrings[index] = Tcl_GetUnicodeFromObj(mapElemv[index], @@ -1987,8 +2132,10 @@ StringMatchCmd( strncmp(string, "-nocase", (size_t) length) == 0) { nocase = TCL_MATCH_NOCASE; } else { - Tcl_AppendResult(interp, "bad option \"", string, - "\": must be -nocase", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad option \"%s\": must be -nocase", string)); + Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "option", + string, NULL); return TCL_ERROR; } } @@ -2022,7 +2169,6 @@ StringRangeCmd( int objc, /* Number of arguments. */ Tcl_Obj *const objv[]) /* Argument objects. */ { - const unsigned char *string; int length, first, last; if (objc != 4) { @@ -2031,22 +2177,11 @@ StringRangeCmd( } /* - * If we have a ByteArray object, avoid indexing in the Utf string since - * the byte array contains one byte per character. Otherwise, use the - * Unicode string rep to get the range. + * Get the length in actual characters; Then reduce it by one because + * 'end' refers to the last character, not one past it. */ - if (objv[1]->typePtr == &tclByteArrayType) { - string = Tcl_GetByteArrayFromObj(objv[1], &length); - length--; - } else { - /* - * Get the length in actual characters. - */ - - string = NULL; - length = Tcl_GetCharLength(objv[1]) - 1; - } + length = Tcl_GetCharLength(objv[1]) - 1; if (TclGetIntForIndexM(interp, objv[2], length, &first) != TCL_OK || TclGetIntForIndexM(interp, objv[3], length, &last) != TCL_OK) { @@ -2060,17 +2195,7 @@ StringRangeCmd( last = length; } if (last >= first) { - if (string != NULL) { - /* - * Reread the string to prevent shimmering nasties. - */ - - string = Tcl_GetByteArrayFromObj(objv[1], &length); - Tcl_SetObjResult(interp, - Tcl_NewByteArrayObj(string+first, last - first + 1)); - } else { - Tcl_SetObjResult(interp, Tcl_GetRange(objv[1], first, last)); - } + Tcl_SetObjResult(interp, Tcl_GetRange(objv[1], first, last)); } return TCL_OK; } @@ -2132,22 +2257,27 @@ StringReptCmd( /* * Only build up a string that has data. Instead of building it up with * repeated appends, we just allocate the necessary space once and copy - * the string value in. Check for overflow with back-division. [Bug - * #714106] + * the string value in. + * + * We have to worry about overflow [Bugs 714106, 2561746]. + * At this point we know 1 <= length1 <= INT_MAX and 2 <= count <= INT_MAX. + * We need to keep 2 <= length2 <= INT_MAX. */ - length2 = length1 * count + 1; - if ((length2-1) / count != length1) { + if (count > INT_MAX/length1) { Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "string size overflow, must be less than %d", INT_MAX)); + "result exceeds max size for a Tcl value (%d bytes)", + INT_MAX)); + Tcl_SetErrorCode(interp, "TCL", "MEMORY", NULL); return TCL_ERROR; } + length2 = length1 * count; /* * Include space for the NUL. */ - string2 = attemptckalloc((size_t) length2); + string2 = attemptckalloc((unsigned) length2 + 1); if (string2 == NULL) { /* * Alloc failed. Note that in this case we try to do an error message @@ -2157,14 +2287,15 @@ StringReptCmd( */ Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "string size overflow, out of memory allocating %d bytes", - length2)); + "string size overflow, out of memory allocating %u bytes", + length2 + 1)); + Tcl_SetErrorCode(interp, "TCL", "MEMORY", NULL); return TCL_ERROR; } for (index = 0; index < count; index++) { memcpy(string2 + (length1 * index), string1, (size_t) length1); } - string2[length2-1] = '\0'; + string2[length2] = '\0'; /* * We have to directly assign this instead of using Tcl_SetStringObj (and @@ -2174,7 +2305,7 @@ StringReptCmd( TclNewObj(resultPtr); resultPtr->bytes = string2; - resultPtr->length = length2-1; + resultPtr->length = length2; Tcl_SetObjResult(interp, resultPtr); done: @@ -2436,7 +2567,7 @@ StringEqualCmd( * the expr string comparison in INST_EQ/INST_NEQ/INST_LT/...). */ - char *string1, *string2; + const char *string1, *string2; int length1, length2, i, match, length, nocase = 0, reqlength = -1; typedef int (*strCmpFn_t)(const char *, const char *, unsigned int); strCmpFn_t strCmpFn; @@ -2457,13 +2588,16 @@ StringEqualCmd( if (i+1 >= objc-2) { goto str_cmp_args; } - ++i; + i++; if (TclGetIntFromObj(interp, objv[i], &reqlength) != TCL_OK) { return TCL_ERROR; } } else { - Tcl_AppendResult(interp, "bad option \"", string2, - "\": must be -nocase or -length", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad option \"%s\": must be -nocase or -length", + string2)); + Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "option", + string2, NULL); return TCL_ERROR; } } @@ -2484,8 +2618,8 @@ StringEqualCmd( return TCL_OK; } - if (!nocase && objv[0]->typePtr == &tclByteArrayType && - objv[1]->typePtr == &tclByteArrayType) { + if (!nocase && TclIsPureByteArray(objv[0]) && + TclIsPureByteArray(objv[1])) { /* * Use binary versions of comparisons since that won't cause undue * type conversions and it is much faster. Only do this if we're @@ -2583,7 +2717,7 @@ StringCmpCmd( * the expr string comparison in INST_EQ/INST_NEQ/INST_LT/...). */ - char *string1, *string2; + const char *string1, *string2; int length1, length2, i, match, length, nocase = 0, reqlength = -1; typedef int (*strCmpFn_t)(const char *, const char *, unsigned int); strCmpFn_t strCmpFn; @@ -2604,13 +2738,16 @@ StringCmpCmd( if (i+1 >= objc-2) { goto str_cmp_args; } - ++i; + i++; if (TclGetIntFromObj(interp, objv[i], &reqlength) != TCL_OK) { return TCL_ERROR; } } else { - Tcl_AppendResult(interp, "bad option \"", string2, - "\": must be -nocase or -length", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad option \"%s\": must be -nocase or -length", + string2)); + Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "INDEX", "option", + string2, NULL); return TCL_ERROR; } } @@ -2631,8 +2768,8 @@ StringCmpCmd( return TCL_OK; } - if (!nocase && objv[0]->typePtr == &tclByteArrayType && - objv[1]->typePtr == &tclByteArrayType) { + if (!nocase && TclIsPureByteArray(objv[0]) && + TclIsPureByteArray(objv[1])) { /* * Use binary versions of comparisons since that won't cause undue * type conversions and it is much faster. Only do this if we're @@ -2759,25 +2896,12 @@ StringLenCmd( int objc, /* Number of arguments. */ Tcl_Obj *const objv[]) /* Argument objects. */ { - int length; - if (objc != 2) { Tcl_WrongNumArgs(interp, 1, objv, "string"); return TCL_ERROR; } - /* - * If we have a ByteArray object, avoid recomputing the string since the - * byte array contains one byte per character. Otherwise, use the Unicode - * string rep to calculate the length. - */ - - if (objv[1]->typePtr == &tclByteArrayType) { - (void) Tcl_GetByteArrayFromObj(objv[1], &length); - } else { - length = Tcl_GetCharLength(objv[1]); - } - Tcl_SetObjResult(interp, Tcl_NewIntObj(length)); + Tcl_SetObjResult(interp, Tcl_NewIntObj(Tcl_GetCharLength(objv[1]))); return TCL_OK; } @@ -2807,7 +2931,8 @@ StringLowerCmd( Tcl_Obj *const objv[]) /* Argument objects. */ { int length1, length2; - char *string1, *string2; + const char *string1; + char *string2; if (objc < 2 || objc > 4) { Tcl_WrongNumArgs(interp, 1, objv, "string ?first? ?last?"); @@ -2891,7 +3016,8 @@ StringUpperCmd( Tcl_Obj *const objv[]) /* Argument objects. */ { int length1, length2; - char *string1, *string2; + const char *string1; + char *string2; if (objc < 2 || objc > 4) { Tcl_WrongNumArgs(interp, 1, objv, "string ?first? ?last?"); @@ -2975,7 +3101,8 @@ StringTitleCmd( Tcl_Obj *const objv[]) /* Argument objects. */ { int length1, length2; - char *string1, *string2; + const char *string1; + char *string2; if (objc < 2 || objc > 4) { Tcl_WrongNumArgs(interp, 1, objv, "string ?first? ?last?"); @@ -3058,73 +3185,25 @@ StringTrimCmd( int objc, /* Number of arguments. */ Tcl_Obj *const objv[]) /* Argument objects. */ { - Tcl_UniChar ch, trim; - register const char *p, *end; - const char *check, *checkEnd, *string1, *string2; - int offset, length1, length2; + const char *string1, *string2; + int triml, trimr, length1, length2; if (objc == 3) { string2 = TclGetStringFromObj(objv[2], &length2); } else if (objc == 2) { - string2 = " \t\n\r"; - length2 = strlen(string2); + string2 = tclDefaultTrimSet; + length2 = strlen(tclDefaultTrimSet); } else { Tcl_WrongNumArgs(interp, 1, objv, "string ?chars?"); return TCL_ERROR; } string1 = TclGetStringFromObj(objv[1], &length1); - checkEnd = string2 + length2; - /* - * The outer loop iterates over the string. The inner loop iterates over - * the trim characters. The loops terminate as soon as a non-trim - * character is discovered and string1 is left pointing at the first - * non-trim character. - */ + triml = TclTrimLeft(string1, length1, string2, length2); + trimr = TclTrimRight(string1 + triml, length1 - triml, string2, length2); - end = string1 + length1; - for (p = string1; p < end; p += offset) { - offset = TclUtfToUniChar(p, &ch); - - for (check = string2; ; ) { - if (check >= checkEnd) { - p = end; - break; - } - check += TclUtfToUniChar(check, &trim); - if (ch == trim) { - length1 -= offset; - string1 += offset; - break; - } - } - } - - /* - * The outer loop iterates over the string. The inner loop iterates over - * the trim characters. The loops terminate as soon as a non-trim - * character is discovered and length1 marks the last non-trim character. - */ - - end = string1; - for (p = string1 + length1; p > end; ) { - p = Tcl_UtfPrev(p, string1); - offset = TclUtfToUniChar(p, &ch); - check = string2; - while (1) { - if (check >= checkEnd) { - p = end; - break; - } - check += TclUtfToUniChar(check, &trim); - if (ch == trim) { - length1 -= offset; - break; - } - } - } - - Tcl_SetObjResult(interp, Tcl_NewStringObj(string1, length1)); + Tcl_SetObjResult(interp, + Tcl_NewStringObj(string1 + triml, length1 - triml - trimr)); return TCL_OK; } @@ -3154,49 +3233,23 @@ StringTrimLCmd( int objc, /* Number of arguments. */ Tcl_Obj *const objv[]) /* Argument objects. */ { - Tcl_UniChar ch, trim; - register const char *p, *end; - const char *check, *checkEnd, *string1, *string2; - int offset, length1, length2; + const char *string1, *string2; + int trim, length1, length2; if (objc == 3) { string2 = TclGetStringFromObj(objv[2], &length2); } else if (objc == 2) { - string2 = " \t\n\r"; - length2 = strlen(string2); + string2 = tclDefaultTrimSet; + length2 = strlen(tclDefaultTrimSet); } else { Tcl_WrongNumArgs(interp, 1, objv, "string ?chars?"); return TCL_ERROR; } string1 = TclGetStringFromObj(objv[1], &length1); - checkEnd = string2 + length2; - - /* - * The outer loop iterates over the string. The inner loop iterates over - * the trim characters. The loops terminate as soon as a non-trim - * character is discovered and string1 is left pointing at the first - * non-trim character. - */ - - end = string1 + length1; - for (p = string1; p < end; p += offset) { - offset = TclUtfToUniChar(p, &ch); - for (check = string2; ; ) { - if (check >= checkEnd) { - p = end; - break; - } - check += TclUtfToUniChar(check, &trim); - if (ch == trim) { - length1 -= offset; - string1 += offset; - break; - } - } - } + trim = TclTrimLeft(string1, length1, string2, length2); - Tcl_SetObjResult(interp, Tcl_NewStringObj(string1, length1)); + Tcl_SetObjResult(interp, Tcl_NewStringObj(string1+trim, length1-trim)); return TCL_OK; } @@ -3226,48 +3279,23 @@ StringTrimRCmd( int objc, /* Number of arguments. */ Tcl_Obj *const objv[]) /* Argument objects. */ { - Tcl_UniChar ch, trim; - register const char *p, *end; - const char *check, *checkEnd, *string1, *string2; - int offset, length1, length2; + const char *string1, *string2; + int trim, length1, length2; if (objc == 3) { string2 = TclGetStringFromObj(objv[2], &length2); } else if (objc == 2) { - string2 = " \t\n\r"; - length2 = strlen(string2); + string2 = tclDefaultTrimSet; + length2 = strlen(tclDefaultTrimSet); } else { Tcl_WrongNumArgs(interp, 1, objv, "string ?chars?"); return TCL_ERROR; } string1 = TclGetStringFromObj(objv[1], &length1); - checkEnd = string2 + length2; - /* - * The outer loop iterates over the string. The inner loop iterates over - * the trim characters. The loops terminate as soon as a non-trim - * character is discovered and length1 marks the last non-trim character. - */ + trim = TclTrimRight(string1, length1, string2, length2); - end = string1; - for (p = string1 + length1; p > end; ) { - p = Tcl_UtfPrev(p, string1); - offset = TclUtfToUniChar(p, &ch); - check = string2; - while (1) { - if (check >= checkEnd) { - p = end; - break; - } - check += TclUtfToUniChar(check, &trim); - if (ch == trim) { - length1 -= offset; - break; - } - } - } - - Tcl_SetObjResult(interp, Tcl_NewStringObj(string1, length1)); + Tcl_SetObjResult(interp, Tcl_NewStringObj(string1, length1-trim)); return TCL_OK; } @@ -3299,29 +3327,29 @@ TclInitStringCmd( Tcl_Interp *interp) /* Current interpreter. */ { static const EnsembleImplMap stringImplMap[] = { - {"bytelength", StringBytesCmd, NULL}, - {"compare", StringCmpCmd, TclCompileStringCmpCmd}, - {"equal", StringEqualCmd, TclCompileStringEqualCmd}, - {"first", StringFirstCmd, NULL}, - {"index", StringIndexCmd, TclCompileStringIndexCmd}, - {"is", StringIsCmd, NULL}, - {"last", StringLastCmd, NULL}, - {"length", StringLenCmd, TclCompileStringLenCmd}, - {"map", StringMapCmd, NULL}, - {"match", StringMatchCmd, TclCompileStringMatchCmd}, - {"range", StringRangeCmd, NULL}, - {"repeat", StringReptCmd, NULL}, - {"replace", StringRplcCmd, NULL}, - {"reverse", StringRevCmd, NULL}, - {"tolower", StringLowerCmd, NULL}, - {"toupper", StringUpperCmd, NULL}, - {"totitle", StringTitleCmd, NULL}, - {"trim", StringTrimCmd, NULL}, - {"trimleft", StringTrimLCmd, NULL}, - {"trimright", StringTrimRCmd, NULL}, - {"wordend", StringEndCmd, NULL}, - {"wordstart", StringStartCmd, NULL}, - {NULL} + {"bytelength", StringBytesCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"compare", StringCmpCmd, TclCompileStringCmpCmd, NULL, NULL, 0}, + {"equal", StringEqualCmd, TclCompileStringEqualCmd, NULL, NULL, 0}, + {"first", StringFirstCmd, TclCompileStringFirstCmd, NULL, NULL, 0}, + {"index", StringIndexCmd, TclCompileStringIndexCmd, NULL, NULL, 0}, + {"is", StringIsCmd, TclCompileStringIsCmd, NULL, NULL, 0}, + {"last", StringLastCmd, TclCompileStringLastCmd, NULL, NULL, 0}, + {"length", StringLenCmd, TclCompileStringLenCmd, NULL, NULL, 0}, + {"map", StringMapCmd, TclCompileStringMapCmd, NULL, NULL, 0}, + {"match", StringMatchCmd, TclCompileStringMatchCmd, NULL, NULL, 0}, + {"range", StringRangeCmd, TclCompileStringRangeCmd, NULL, NULL, 0}, + {"repeat", StringReptCmd, TclCompileBasic2ArgCmd, NULL, NULL, 0}, + {"replace", StringRplcCmd, TclCompileStringReplaceCmd, NULL, NULL, 0}, + {"reverse", StringRevCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"tolower", StringLowerCmd, TclCompileStringToLowerCmd, NULL, NULL, 0}, + {"toupper", StringUpperCmd, TclCompileStringToUpperCmd, NULL, NULL, 0}, + {"totitle", StringTitleCmd, TclCompileStringToTitleCmd, NULL, NULL, 0}, + {"trim", StringTrimCmd, TclCompileStringTrimCmd, NULL, NULL, 0}, + {"trimleft", StringTrimLCmd, TclCompileStringTrimLCmd, NULL, NULL, 0}, + {"trimright", StringTrimRCmd, TclCompileStringTrimRCmd, NULL, NULL, 0}, + {"wordend", StringEndCmd, TclCompileBasic2ArgCmd, NULL, NULL, 0}, + {"wordstart", StringStartCmd, TclCompileBasic2ArgCmd, NULL, NULL, 0}, + {NULL, NULL, NULL, NULL, NULL, 0} }; return TclMakeEnsemble(interp, "string", stringImplMap); @@ -3346,30 +3374,24 @@ TclInitStringCmd( */ int -Tcl_SubstObjCmd( - ClientData dummy, /* Not used. */ - Tcl_Interp *interp, /* Current interpreter. */ - int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ +TclSubstOptions( + Tcl_Interp *interp, + int numOpts, + Tcl_Obj *const opts[], + int *flagPtr) { - static CONST char *substOptions[] = { + static const char *const substOptions[] = { "-nobackslashes", "-nocommands", "-novariables", NULL }; - enum substOptions { + enum { SUBST_NOBACKSLASHES, SUBST_NOCOMMANDS, SUBST_NOVARS }; - Tcl_Obj *resultPtr; - int flags, i; + int i, flags = TCL_SUBST_ALL; - /* - * Parse command-line options. - */ - - flags = TCL_SUBST_ALL; - for (i = 1; i < (objc-1); i++) { + for (i = 0; i < numOpts; i++) { int optionIndex; - if (Tcl_GetIndexFromObj(interp, objv[i], substOptions, "switch", 0, + if (Tcl_GetIndexFromObj(interp, opts[i], substOptions, "switch", 0, &optionIndex) != TCL_OK) { return TCL_ERROR; } @@ -3387,23 +3409,39 @@ Tcl_SubstObjCmd( Tcl_Panic("Tcl_SubstObjCmd: bad option index to SubstOptions"); } } - if (i != objc-1) { + *flagPtr = flags; + return TCL_OK; +} + +int +Tcl_SubstObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNRSubstObjCmd, dummy, objc, objv); +} + +int +TclNRSubstObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + int flags; + + if (objc < 2) { Tcl_WrongNumArgs(interp, 1, objv, "?-nobackslashes? ?-nocommands? ?-novariables? string"); return TCL_ERROR; } - /* - * Perform the substitution. - */ - - resultPtr = Tcl_SubstObj(interp, objv[i], flags); - - if (resultPtr == NULL) { + if (TclSubstOptions(interp, objc-2, objv+1, &flags) != TCL_OK) { return TCL_ERROR; } - Tcl_SetObjResult(interp, resultPtr); - return TCL_OK; + return Tcl_NRSubstObj(interp, objv[objc-1], flags); } /* @@ -3428,13 +3466,22 @@ Tcl_SwitchObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - int i,j, index, mode, foundmode, result, splitObjs, numMatchesSaved; + return Tcl_NRCallObjProc(interp, TclNRSwitchObjCmd, dummy, objc, objv); +} +int +TclNRSwitchObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + int i,j, index, mode, foundmode, splitObjs, numMatchesSaved; int noCase, patternLength; - char *pattern; + const char *pattern; Tcl_Obj *stringObj, *indexVarObj, *matchVarObj; - Tcl_Obj *CONST *savedObjv = objv; + Tcl_Obj *const *savedObjv = objv; Tcl_RegExp regExpr = NULL; Interp *iPtr = (Interp *) interp; int pc = 0; @@ -3448,7 +3495,7 @@ Tcl_SwitchObjCmd( * -glob, you *must* fix TclCompileSwitchCmd's option parser as well. */ - static CONST char *options[] = { + static const char *const options[] = { "-exact", "-glob", "-indexvar", "-matchvar", "-nocase", "-regexp", "--", NULL }; @@ -3482,7 +3529,7 @@ Tcl_SwitchObjCmd( i++; goto finishedOptions; case OPT_NOCASE: - strCmpFn = strcasecmp; + strCmpFn = TclUtfCasecmp; noCase = 1; break; @@ -3496,15 +3543,16 @@ Tcl_SwitchObjCmd( * Mode already set via -exact, -glob, or -regexp. */ - Tcl_AppendResult(interp, "bad option \"", - TclGetString(objv[i]), "\": ", options[mode], - " option already found", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad option \"%s\": %s option already found", + TclGetString(objv[i]), options[mode])); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", + "DOUBLEOPT", NULL); return TCL_ERROR; - } else { - foundmode = 1; - mode = index; - break; } + foundmode = 1; + mode = index; + break; /* * Check for TIP#75 options specifying the variables to write @@ -3514,8 +3562,11 @@ Tcl_SwitchObjCmd( case OPT_INDEXV: i++; if (i >= objc-2) { - Tcl_AppendResult(interp, "missing variable name argument to ", - "-indexvar", " option", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "missing variable name argument to %s option", + "-indexvar")); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", + "NOVAR", NULL); return TCL_ERROR; } indexVarObj = objv[i]; @@ -3524,8 +3575,11 @@ Tcl_SwitchObjCmd( case OPT_MATCHV: i++; if (i >= objc-2) { - Tcl_AppendResult(interp, "missing variable name argument to ", - "-matchvar", " option", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "missing variable name argument to %s option", + "-matchvar")); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", + "NOVAR", NULL); return TCL_ERROR; } matchVarObj = objv[i]; @@ -3537,17 +3591,21 @@ Tcl_SwitchObjCmd( finishedOptions: if (objc - i < 2) { Tcl_WrongNumArgs(interp, 1, objv, - "?switches? string pattern body ... ?default body?"); + "?-switch ...? string ?pattern body ...? ?default body?"); return TCL_ERROR; } if (indexVarObj != NULL && mode != OPT_REGEXP) { - Tcl_AppendResult(interp, - "-indexvar option requires -regexp option", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "%s option requires -regexp option", "-indexvar")); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", + "MODERESTRICTION", NULL); return TCL_ERROR; } if (matchVarObj != NULL && mode != OPT_REGEXP) { - Tcl_AppendResult(interp, - "-matchvar option requires -regexp option", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "%s option requires -regexp option", "-matchvar")); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", + "MODERESTRICTION", NULL); return TCL_ERROR; } @@ -3568,8 +3626,8 @@ Tcl_SwitchObjCmd( splitObjs = 0; if (objc == 1) { Tcl_Obj **listv; - blist = objv[0]; + blist = objv[0]; if (TclListObjGetElements(interp, objv[0], &objc, &listv) != TCL_OK){ return TCL_ERROR; } @@ -3580,7 +3638,7 @@ Tcl_SwitchObjCmd( if (objc < 1) { Tcl_WrongNumArgs(interp, 1, savedObjv, - "?switches? string {pattern body ... ?default body?}"); + "?-switch ...? string {?pattern body ...? ?default body?}"); return TCL_ERROR; } objv = listv; @@ -3594,7 +3652,10 @@ Tcl_SwitchObjCmd( if (objc % 2) { Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "extra switch pattern with no body", NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "extra switch pattern with no body", -1)); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", "BADARM", + NULL); /* * Check if this can be due to a badly placed comment in the switch @@ -3607,10 +3668,12 @@ Tcl_SwitchObjCmd( if (splitObjs) { for (i=0 ; i<objc ; i+=2) { if (TclGetString(objv[i])[0] == '#') { - Tcl_AppendResult(interp, ", this may be due to a " - "comment incorrectly placed outside of a " - "switch body - see the \"switch\" " - "documentation", NULL); + Tcl_AppendToObj(Tcl_GetObjResult(interp), + ", this may be due to a comment incorrectly" + " placed outside of a switch body - see the" + " \"switch\" documentation", -1); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", + "BADARM", "COMMENT?", NULL); break; } } @@ -3625,9 +3688,11 @@ Tcl_SwitchObjCmd( */ if (strcmp(TclGetString(objv[objc-1]), "-") == 0) { - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "no body specified for pattern \"", - TclGetString(objv[objc-2]), "\"", NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "no body specified for pattern \"%s\"", + TclGetString(objv[objc-2]))); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "SWITCH", "BADARM", + "FALLTHROUGH", NULL); return TCL_ERROR; } @@ -3666,36 +3731,35 @@ Tcl_SwitchObjCmd( } } goto matchFound; - } else { - switch (mode) { - case OPT_EXACT: - if (strCmpFn(TclGetString(stringObj), pattern) == 0) { - goto matchFound; - } - break; - case OPT_GLOB: - if (Tcl_StringCaseMatch(TclGetString(stringObj), pattern, - noCase)) { - goto matchFound; - } - break; - case OPT_REGEXP: - regExpr = Tcl_GetRegExpFromObj(interp, objv[i], - TCL_REG_ADVANCED | (noCase ? TCL_REG_NOCASE : 0)); - if (regExpr == NULL) { - return TCL_ERROR; - } else { - int matched = Tcl_RegExpExecObj(interp, regExpr, - stringObj, 0, numMatchesSaved, 0); + } - if (matched < 0) { - return TCL_ERROR; - } else if (matched) { - goto matchFoundRegexp; - } + switch (mode) { + case OPT_EXACT: + if (strCmpFn(TclGetString(stringObj), pattern) == 0) { + goto matchFound; + } + break; + case OPT_GLOB: + if (Tcl_StringCaseMatch(TclGetString(stringObj),pattern,noCase)) { + goto matchFound; + } + break; + case OPT_REGEXP: + regExpr = Tcl_GetRegExpFromObj(interp, objv[i], + TCL_REG_ADVANCED | (noCase ? TCL_REG_NOCASE : 0)); + if (regExpr == NULL) { + return TCL_ERROR; + } else { + int matched = Tcl_RegExpExecObj(interp, regExpr, stringObj, 0, + numMatchesSaved, 0); + + if (matched < 0) { + return TCL_ERROR; + } else if (matched) { + goto matchFoundRegexp; } - break; } + break; } } return TCL_OK; @@ -3725,8 +3789,12 @@ Tcl_SwitchObjCmd( if (indexVarObj != NULL) { Tcl_Obj *rangeObjAry[2]; - rangeObjAry[0] = Tcl_NewLongObj(info.matches[j].start); - rangeObjAry[1] = Tcl_NewLongObj(info.matches[j].end); + if (info.matches[j].end > 0) { + rangeObjAry[0] = Tcl_NewLongObj(info.matches[j].start); + rangeObjAry[1] = Tcl_NewLongObj(info.matches[j].end-1); + } else { + rangeObjAry[0] = rangeObjAry[1] = Tcl_NewIntObj(-1); + } /* * Never fails; the object is always clean at this point. @@ -3787,7 +3855,7 @@ Tcl_SwitchObjCmd( */ matchFound: - ctxPtr = (CmdFrame *) TclStackAlloc(interp, sizeof(CmdFrame)); + ctxPtr = TclStackAlloc(interp, sizeof(CmdFrame)); *ctxPtr = *iPtr->cmdFramePtr; if (splitObjs) { @@ -3802,7 +3870,7 @@ Tcl_SwitchObjCmd( if (ctxPtr->type == TCL_LOCATION_BC) { /* * Type BC => ctxPtr->data.eval.path is not used. - * ctxPtr->data.tebc.codePtr is used instead. + * ctxPtr->data.tebc.codePtr is used instead. */ TclGetSrcInfoForPc(ctxPtr); @@ -3817,9 +3885,9 @@ Tcl_SwitchObjCmd( if (ctxPtr->type == TCL_LOCATION_SOURCE && ctxPtr->line[bidx] >= 0) { int bline = ctxPtr->line[bidx]; - ctxPtr->line = (int *) ckalloc(objc * sizeof(int)); + ctxPtr->line = ckalloc(objc * sizeof(int)); ctxPtr->nline = objc; - TclListLines(TclGetString(blist), bline, objc, ctxPtr->line); + TclListLines(blist, bline, objc, ctxPtr->line, objv); } else { /* * This is either a dynamic code word, when all elements are @@ -3831,7 +3899,7 @@ Tcl_SwitchObjCmd( int k; - ctxPtr->line = (int *) ckalloc(objc * sizeof(int)); + ctxPtr->line = ckalloc(objc * sizeof(int)); ctxPtr->nline = objc; for (k=0; k < objc; k++) { ctxPtr->line[k] = -1; @@ -3857,9 +3925,31 @@ Tcl_SwitchObjCmd( * TIP #280: Make invoking context available to switch branch. */ - result = TclEvalObjEx(interp, objv[j], 0, ctxPtr, j); + Tcl_NRAddCallback(interp, SwitchPostProc, INT2PTR(splitObjs), ctxPtr, + INT2PTR(pc), (ClientData) pattern); + return TclNREvalObjEx(interp, objv[j], 0, ctxPtr, splitObjs ? j : bidx+j); +} + +static int +SwitchPostProc( + ClientData data[], /* Data passed from Tcl_NRAddCallback above */ + Tcl_Interp *interp, /* Tcl interpreter */ + int result) /* Result to return*/ +{ + /* Unpack the preserved data */ + + int splitObjs = PTR2INT(data[0]); + CmdFrame *ctxPtr = data[1]; + int pc = PTR2INT(data[2]); + const char *pattern = data[3]; + int patternLength = strlen(pattern); + + /* + * Clean up TIP 280 context information + */ + if (splitObjs) { - ckfree((char *) ctxPtr->line); + ckfree(ctxPtr->line); if (pc && (ctxPtr->type == TCL_LOCATION_SOURCE)) { /* * Death of SrcInfo reference. @@ -3880,7 +3970,7 @@ Tcl_SwitchObjCmd( Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( "\n (\"%.*s%s\" arm line %d)", (overflow ? limit : patternLength), pattern, - (overflow ? "..." : ""), interp->errorLine)); + (overflow ? "..." : ""), Tcl_GetErrorLine(interp))); } TclStackFree(interp, ctxPtr); return result; @@ -3889,6 +3979,69 @@ Tcl_SwitchObjCmd( /* *---------------------------------------------------------------------- * + * Tcl_ThrowObjCmd -- + * + * This procedure is invoked to process the "throw" Tcl command. See the + * user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * See the user documentation. + * + *---------------------------------------------------------------------- + */ + + /* ARGSUSED */ +int +Tcl_ThrowObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + Tcl_Obj *options; + int len; + + if (objc != 3) { + Tcl_WrongNumArgs(interp, 1, objv, "type message"); + return TCL_ERROR; + } + + /* + * The type must be a list of at least length 1. + */ + + if (Tcl_ListObjLength(interp, objv[1], &len) != TCL_OK) { + return TCL_ERROR; + } else if (len < 1) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "type must be non-empty list", -1)); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "THROW", "BADEXCEPTION", + NULL); + return TCL_ERROR; + } + + /* + * Now prepare the result options dictionary. We use the list API as it is + * slightly more convenient. + */ + + TclNewLiteralStringObj(options, "-code error -level 0 -errorcode"); + Tcl_ListObjAppendElement(NULL, options, objv[1]); + + /* + * We're ready to go. Fire things into the low-level result machinery. + */ + + Tcl_SetObjResult(interp, objv[2]); + return Tcl_SetReturnOptions(interp, options); +} + +/* + *---------------------------------------------------------------------- + * * Tcl_TimeObjCmd -- * * This object-based procedure is invoked to process the "time" Tcl @@ -3908,7 +4061,7 @@ Tcl_TimeObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { register Tcl_Obj *objPtr; Tcl_Obj *objs[4]; @@ -3981,6 +4134,578 @@ Tcl_TimeObjCmd( /* *---------------------------------------------------------------------- * + * Tcl_TryObjCmd, TclNRTryObjCmd -- + * + * This procedure is invoked to process the "try" Tcl command. See the + * user documentation (or TIP #329) for details on what it does. + * + * Results: + * A standard Tcl object result. + * + * Side effects: + * See the user documentation. + * + *---------------------------------------------------------------------- + */ + +int +Tcl_TryObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNRTryObjCmd, dummy, objc, objv); +} + +int +TclNRTryObjCmd( + ClientData clientData, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + Tcl_Obj *bodyObj, *handlersObj, *finallyObj = NULL; + int i, bodyShared, haveHandlers, dummy, code; + static const char *const handlerNames[] = { + "finally", "on", "trap", NULL + }; + enum Handlers { + TryFinally, TryOn, TryTrap + }; + + /* + * Parse the arguments. The handlers are passed to subsequent callbacks as + * a Tcl_Obj list of the 5-tuples like (type, returnCode, errorCodePrefix, + * bindVariables, script), and the finally script is just passed as it is. + */ + + if (objc < 2) { + Tcl_WrongNumArgs(interp, 1, objv, + "body ?handler ...? ?finally script?"); + return TCL_ERROR; + } + bodyObj = objv[1]; + handlersObj = Tcl_NewObj(); + bodyShared = 0; + haveHandlers = 0; + for (i=2 ; i<objc ; i++) { + int type; + Tcl_Obj *info[5]; + + if (Tcl_GetIndexFromObj(interp, objv[i], handlerNames, "handler type", + 0, &type) != TCL_OK) { + Tcl_DecrRefCount(handlersObj); + return TCL_ERROR; + } + switch ((enum Handlers) type) { + case TryFinally: /* finally script */ + if (i < objc-2) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "finally clause must be last", -1)); + Tcl_DecrRefCount(handlersObj); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "FINALLY", + "NONTERMINAL", NULL); + return TCL_ERROR; + } else if (i == objc-1) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "wrong # args to finally clause: must be" + " \"... finally script\"", -1)); + Tcl_DecrRefCount(handlersObj); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "FINALLY", + "ARGUMENT", NULL); + return TCL_ERROR; + } + finallyObj = objv[++i]; + break; + + case TryOn: /* on code variableList script */ + if (i > objc-4) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "wrong # args to on clause: must be \"... on code" + " variableList script\"", -1)); + Tcl_DecrRefCount(handlersObj); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "ON", + "ARGUMENT", NULL); + return TCL_ERROR; + } + if (TclGetCompletionCodeFromObj(interp, objv[i+1], + &code) != TCL_OK) { + Tcl_DecrRefCount(handlersObj); + return TCL_ERROR; + } + info[2] = NULL; + goto commonHandler; + + case TryTrap: /* trap pattern variableList script */ + if (i > objc-4) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "wrong # args to trap clause: " + "must be \"... trap pattern variableList script\"", + -1)); + Tcl_DecrRefCount(handlersObj); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "TRAP", + "ARGUMENT", NULL); + return TCL_ERROR; + } + code = 1; + if (Tcl_ListObjLength(NULL, objv[i+1], &dummy) != TCL_OK) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "bad prefix '%s': must be a list", + Tcl_GetString(objv[i+1]))); + Tcl_DecrRefCount(handlersObj); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "TRAP", + "EXNFORMAT", NULL); + return TCL_ERROR; + } + info[2] = objv[i+1]; + + commonHandler: + if (Tcl_ListObjLength(interp, objv[i+2], &dummy) != TCL_OK) { + Tcl_DecrRefCount(handlersObj); + return TCL_ERROR; + } + + info[0] = objv[i]; /* type */ + TclNewIntObj(info[1], code); /* returnCode */ + if (info[2] == NULL) { /* errorCodePrefix */ + TclNewObj(info[2]); + } + info[3] = objv[i+2]; /* bindVariables */ + info[4] = objv[i+3]; /* script */ + + bodyShared = !strcmp(TclGetString(objv[i+3]), "-"); + Tcl_ListObjAppendElement(NULL, handlersObj, + Tcl_NewListObj(5, info)); + haveHandlers = 1; + i += 3; + break; + } + } + if (bodyShared) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "last non-finally clause must not have a body of \"-\"", -1)); + Tcl_DecrRefCount(handlersObj); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "TRY", "BADFALLTHROUGH", + NULL); + return TCL_ERROR; + } + if (!haveHandlers) { + Tcl_DecrRefCount(handlersObj); + handlersObj = NULL; + } + + /* + * Execute the body. + */ + + Tcl_NRAddCallback(interp, TryPostBody, handlersObj, finallyObj, + (ClientData)objv, INT2PTR(objc)); + return TclNREvalObjEx(interp, bodyObj, 0, + ((Interp *) interp)->cmdFramePtr, 1); +} + +/* + *---------------------------------------------------------------------- + * + * During -- + * + * This helper function patches together the updates to the interpreter's + * return options that are needed when things fail during the processing + * of a handler or finally script for the [try] command. + * + * Returns: + * The new option dictionary. + * + *---------------------------------------------------------------------- + */ + +static inline Tcl_Obj * +During( + Tcl_Interp *interp, + int resultCode, /* The result code from the just-evaluated + * script. */ + Tcl_Obj *oldOptions, /* The old option dictionary. */ + Tcl_Obj *errorInfo) /* An object to append to the errorinfo and + * release, or NULL if nothing is to be added. + * Designed to be used with Tcl_ObjPrintf. */ +{ + Tcl_Obj *during, *options; + + if (errorInfo != NULL) { + Tcl_AppendObjToErrorInfo(interp, errorInfo); + } + options = Tcl_GetReturnOptions(interp, resultCode); + TclNewLiteralStringObj(during, "-during"); + Tcl_IncrRefCount(during); + Tcl_DictObjPut(interp, options, during, oldOptions); + Tcl_DecrRefCount(during); + Tcl_IncrRefCount(options); + Tcl_DecrRefCount(oldOptions); + return options; +} + +/* + *---------------------------------------------------------------------- + * + * TryPostBody -- + * + * Callback to handle the outcome of the execution of the body of a 'try' + * command. + * + *---------------------------------------------------------------------- + */ + +static int +TryPostBody( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + Tcl_Obj *resultObj, *options, *handlersObj, *finallyObj, *cmdObj, **objv; + int i, dummy, code, objc; + int numHandlers = 0; + + handlersObj = data[0]; + finallyObj = data[1]; + objv = data[2]; + objc = PTR2INT(data[3]); + + cmdObj = objv[0]; + + /* + * Check for limits/rewinding, which override normal trapping behaviour. + */ + + if (((Interp*) interp)->execEnvPtr->rewind || Tcl_LimitExceeded(interp)) { + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (\"%s\" body line %d)", TclGetString(cmdObj), + Tcl_GetErrorLine(interp))); + if (handlersObj != NULL) { + Tcl_DecrRefCount(handlersObj); + } + return TCL_ERROR; + } + + /* + * Basic processing of the outcome of the script, including adding of + * errorinfo trace. + */ + + if (result == TCL_ERROR) { + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (\"%s\" body line %d)", TclGetString(cmdObj), + Tcl_GetErrorLine(interp))); + } + resultObj = Tcl_GetObjResult(interp); + Tcl_IncrRefCount(resultObj); + options = Tcl_GetReturnOptions(interp, result); + Tcl_IncrRefCount(options); + Tcl_ResetResult(interp); + + /* + * Handle the results. + */ + + if (handlersObj != NULL) { + int found = 0; + Tcl_Obj **handlers, **info; + + Tcl_ListObjGetElements(NULL, handlersObj, &numHandlers, &handlers); + for (i=0 ; i<numHandlers ; i++) { + Tcl_Obj *handlerBodyObj; + + Tcl_ListObjGetElements(NULL, handlers[i], &dummy, &info); + if (!found) { + Tcl_GetIntFromObj(NULL, info[1], &code); + if (code != result) { + continue; + } + + /* + * When processing an error, we must also perform list-prefix + * matching of the errorcode list. However, if this was an + * 'on' handler, the list that we are matching against will be + * empty. + */ + + if (code == TCL_ERROR) { + Tcl_Obj *errorCodeName, *errcode, **bits1, **bits2; + int len1, len2, j; + + TclNewLiteralStringObj(errorCodeName, "-errorcode"); + Tcl_DictObjGet(NULL, options, errorCodeName, &errcode); + Tcl_DecrRefCount(errorCodeName); + Tcl_ListObjGetElements(NULL, info[2], &len1, &bits1); + if (Tcl_ListObjGetElements(NULL, errcode, &len2, + &bits2) != TCL_OK) { + continue; + } + if (len2 < len1) { + continue; + } + for (j=0 ; j<len1 ; j++) { + if (strcmp(TclGetString(bits1[j]), + TclGetString(bits2[j])) != 0) { + /* + * Really want 'continue outerloop;', but C does + * not give us that. + */ + + goto didNotMatch; + } + } + } + + found = 1; + } + + /* + * Now we need to scan forward over "-" bodies. Note that we've + * already checked that the last body is not a "-", so this search + * will terminate successfully. + */ + + if (!strcmp(TclGetString(info[4]), "-")) { + continue; + } + + /* + * Bind the variables. We already know this is a list of variable + * names, but it might be empty. + */ + + Tcl_ResetResult(interp); + result = TCL_ERROR; + Tcl_ListObjLength(NULL, info[3], &dummy); + if (dummy > 0) { + Tcl_Obj *varName; + + Tcl_ListObjIndex(NULL, info[3], 0, &varName); + if (Tcl_ObjSetVar2(interp, varName, NULL, resultObj, + TCL_LEAVE_ERR_MSG) == NULL) { + Tcl_DecrRefCount(resultObj); + goto handlerFailed; + } + Tcl_DecrRefCount(resultObj); + if (dummy > 1) { + Tcl_ListObjIndex(NULL, info[3], 1, &varName); + if (Tcl_ObjSetVar2(interp, varName, NULL, options, + TCL_LEAVE_ERR_MSG) == NULL) { + goto handlerFailed; + } + } + } else { + /* + * Dispose of the result to prevent a memleak. [Bug 2910044] + */ + + Tcl_DecrRefCount(resultObj); + } + + /* + * Evaluate the handler body and process the outcome. Note that we + * need to keep the kind of handler for debugging purposes, and in + * any case anything we want from info[] must be extracted right + * now because the info[] array is about to become invalid. There + * is very little refcount handling here however, since we know + * that the objects that we still want to refer to now were input + * arguments to [try] and so are still on the Tcl value stack. + */ + + handlerBodyObj = info[4]; + Tcl_NRAddCallback(interp, TryPostHandler, objv, options, info[0], + INT2PTR((finallyObj == NULL) ? 0 : objc - 1)); + Tcl_DecrRefCount(handlersObj); + return TclNREvalObjEx(interp, handlerBodyObj, 0, + ((Interp *) interp)->cmdFramePtr, 4*i + 5); + + handlerFailed: + resultObj = Tcl_GetObjResult(interp); + Tcl_IncrRefCount(resultObj); + options = During(interp, result, options, NULL); + break; + + didNotMatch: + continue; + } + + /* + * No handler matched; get rid of the list of handlers. + */ + + Tcl_DecrRefCount(handlersObj); + } + + /* + * Process the finally clause. + */ + + if (finallyObj != NULL) { + Tcl_NRAddCallback(interp, TryPostFinal, resultObj, options, cmdObj, + NULL); + return TclNREvalObjEx(interp, finallyObj, 0, + ((Interp *) interp)->cmdFramePtr, objc - 1); + } + + /* + * Install the correct result/options into the interpreter and clean up + * any temporary storage. + */ + + result = Tcl_SetReturnOptions(interp, options); + Tcl_DecrRefCount(options); + Tcl_SetObjResult(interp, resultObj); + Tcl_DecrRefCount(resultObj); + return result; +} + +/* + *---------------------------------------------------------------------- + * + * TryPostHandler -- + * + * Callback to handle the outcome of the execution of a handler of a + * 'try' command. + * + *---------------------------------------------------------------------- + */ + +static int +TryPostHandler( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + Tcl_Obj *resultObj, *cmdObj, *options, *handlerKindObj, **objv; + Tcl_Obj *finallyObj; + int finally; + + objv = data[0]; + options = data[1]; + handlerKindObj = data[2]; + finally = PTR2INT(data[3]); + + cmdObj = objv[0]; + finallyObj = finally ? objv[finally] : 0; + + /* + * Check for limits/rewinding, which override normal trapping behaviour. + */ + + if (((Interp*) interp)->execEnvPtr->rewind || Tcl_LimitExceeded(interp)) { + options = During(interp, result, options, Tcl_ObjPrintf( + "\n (\"%s ... %s\" handler line %d)", + TclGetString(cmdObj), TclGetString(handlerKindObj), + Tcl_GetErrorLine(interp))); + Tcl_DecrRefCount(options); + return TCL_ERROR; + } + + /* + * The handler result completely substitutes for the result of the body. + */ + + resultObj = Tcl_GetObjResult(interp); + Tcl_IncrRefCount(resultObj); + if (result == TCL_ERROR) { + options = During(interp, result, options, Tcl_ObjPrintf( + "\n (\"%s ... %s\" handler line %d)", + TclGetString(cmdObj), TclGetString(handlerKindObj), + Tcl_GetErrorLine(interp))); + } else { + Tcl_DecrRefCount(options); + options = Tcl_GetReturnOptions(interp, result); + Tcl_IncrRefCount(options); + } + + /* + * Process the finally clause if it is present. + */ + + if (finallyObj != NULL) { + Interp *iPtr = (Interp *) interp; + + Tcl_NRAddCallback(interp, TryPostFinal, resultObj, options, cmdObj, + NULL); + + /* The 'finally' script is always the last argument word. */ + return TclNREvalObjEx(interp, finallyObj, 0, iPtr->cmdFramePtr, + finally); + } + + /* + * Install the correct result/options into the interpreter and clean up + * any temporary storage. + */ + + result = Tcl_SetReturnOptions(interp, options); + Tcl_DecrRefCount(options); + Tcl_SetObjResult(interp, resultObj); + Tcl_DecrRefCount(resultObj); + return result; +} + +/* + *---------------------------------------------------------------------- + * + * TryPostFinal -- + * + * Callback to handle the outcome of the execution of the finally script + * of a 'try' command. + * + *---------------------------------------------------------------------- + */ + +static int +TryPostFinal( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + Tcl_Obj *resultObj, *options, *cmdObj; + + resultObj = data[0]; + options = data[1]; + cmdObj = data[2]; + + /* + * If the result wasn't OK, we need to adjust the result options. + */ + + if (result != TCL_OK) { + Tcl_DecrRefCount(resultObj); + resultObj = NULL; + if (result == TCL_ERROR) { + options = During(interp, result, options, Tcl_ObjPrintf( + "\n (\"%s ... finally\" body line %d)", + TclGetString(cmdObj), Tcl_GetErrorLine(interp))); + } else { + Tcl_Obj *origOptions = options; + + options = Tcl_GetReturnOptions(interp, result); + Tcl_IncrRefCount(options); + Tcl_DecrRefCount(origOptions); + } + } + + /* + * Install the correct result/options into the interpreter and clean up + * any temporary storage. + */ + + result = Tcl_SetReturnOptions(interp, options); + Tcl_DecrRefCount(options); + if (resultObj != NULL) { + Tcl_SetObjResult(interp, resultObj); + Tcl_DecrRefCount(resultObj); + } + return result; +} + +/* + *---------------------------------------------------------------------- + * * Tcl_WhileObjCmd -- * * This procedure is invoked to process the "while" Tcl command. See the @@ -4004,42 +4729,39 @@ Tcl_WhileObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - int result, value; - Interp *iPtr = (Interp *) interp; + return Tcl_NRCallObjProc(interp, TclNRWhileObjCmd, dummy, objc, objv); +} + +int +TclNRWhileObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + ForIterData *iterPtr; if (objc != 3) { Tcl_WrongNumArgs(interp, 1, objv, "test command"); return TCL_ERROR; } - while (1) { - result = Tcl_ExprBooleanObj(interp, objv[1], &value); - if (result != TCL_OK) { - return result; - } - if (!value) { - break; - } + /* + * We reuse [for]'s callback, passing a NULL for the 'next' script. + */ - /* TIP #280. */ - result = TclEvalObjEx(interp, objv[2], 0, iPtr->cmdFramePtr, 2); - if ((result != TCL_OK) && (result != TCL_CONTINUE)) { - if (result == TCL_ERROR) { - Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( - "\n (\"while\" body line %d)", interp->errorLine)); - } - break; - } - } - if (result == TCL_BREAK) { - result = TCL_OK; - } - if (result == TCL_OK) { - Tcl_ResetResult(interp); - } - return result; + TclSmallAllocEx(interp, sizeof(ForIterData), iterPtr); + iterPtr->cond = objv[1]; + iterPtr->body = objv[2]; + iterPtr->next = NULL; + iterPtr->msg = "\n (\"while\" body line %d)"; + iterPtr->word = 2; + + TclNRAddCallback(interp, TclNRForIterCallback, iterPtr, NULL, + NULL, NULL); + return TCL_OK; } /* @@ -4060,21 +4782,31 @@ Tcl_WhileObjCmd( void TclListLines( - CONST char *listStr, /* Pointer to string with list structure. - * Assumed to be valid. Assumed to contain n - * elements. */ + Tcl_Obj *listObj, /* Pointer to obj holding a string with list + * structure. Assumed to be valid. Assumed to + * contain n elements. */ int line, /* Line the list as a whole starts on. */ int n, /* #elements in lines */ - int *lines) /* Array of line numbers, to fill. */ + int *lines, /* Array of line numbers, to fill. */ + Tcl_Obj *const *elems) /* The list elems as Tcl_Obj*, in need of + * derived continuation data */ { + const char *listStr = Tcl_GetString(listObj); + const char *listHead = listStr; int i, length = strlen(listStr); - CONST char *element = NULL, *next = NULL; + const char *element = NULL, *next = NULL; + ContLineLoc *clLocPtr = TclContinuationsGet(listObj); + int *clNext = (clLocPtr ? &clLocPtr->loc[0] : NULL); for (i = 0; i < n; i++) { TclFindElement(NULL, listStr, length, &element, &next, NULL, NULL); TclAdvanceLines(&line, listStr, element); /* Leading whitespace */ + TclAdvanceContinuations(&line, &clNext, element - listHead); + if (elems && clNext) { + TclContinuationsEnterDerived(elems[i], element-listHead, clNext); + } lines[i] = line; length -= (next - listStr); TclAdvanceLines(&line, element, next); |