Release calc version 2.11.0t8.7

BUGS

@@ -68,9 +68,157 @@ importantly, fixes (in the form of a context diff patch) to:
 
 Known bugs:
 
-    None reported.  We are sure some bugs exist.  When you find them,
+    * When compiled on some Big Endian machines with BASEB forced to
-    please let us know!  See the above for details on how to report and
+      be 16 (by setting LONGLONG_BITS= 0 in the Makefile), calc fails
-    were to EMail your bug reports and hopefully patches to fix them.
+      a number of regression tests:
+
+	4230: n = ftell(f)
+	4231: isnull(fputs(f,L,"\n",C,"\n",N,"\n"))
+	4232: fseek(f, n)
+	**** Non-true result (0): 4233: fgetstr(f) == LCN
+	4234: isnull(fclose(f))
+	4235: a = exp(27, 1e-1000)
+	4236: b = sqrt(7 + 5i, 1e-2000)
+	4252: fscanf(f, "%*[^|]%*c%n%*[^[]%*c%n", m, n) == 2
+	4253: fseek(f, m)
+	4254: fscanf(f, "%3c", x) == 1
+	**** Non-true result (0): 4255: x == "  Cu"
+	4256: fseek(f, n)
+	4257: fscanf(f, "%s", y) == 1
+	**** Non-true result (0): 4258: y == "Noll"
+	4259: isnull(fclose(f))
+	4260: x = rm("junk4200")
+	4261: Ending test_fileops
+	4600: Beginning test_fileop
+	4601: ttest(0,0): passed
+	4602: stest(): failed
+	**** search(f, "and") != 10 failed
+	4603: ttest(1,1): failed
+	**** Failure 2 for i = 0
+	4604: stest(): failed
+	**** search(f, "and") != 10 failed
+	4605: ttest(2,2): failed
+	**** Failure 2 for i = 0
+	4606: stest(): failed
+	**** search(f, "and") != 10 failed
+	4607: ttest(3,3): failed
+	**** Failure 2 for i = 0
+	4608: stest(): failed
+	**** search(f, "and") != 10 failed
+	4609: ttest(4,4): failed
+	**** Failure 2 for i = 0
+	4610: stest(): failed
+	**** search(f, "and") != 10 failed
+	4611: ttest(5,5): failed
+	**** Failure 2 for i = 0
+	4612: stest(): failed
+	**** search(f, "and") != 10 failed
+	4613: ttest(6,6): failed
+	**** Failure 2 for i = 0
+	4614: stest(): failed
+	**** search(f, "and") != 10 failed
+	4615: ttest(7,7): failed
+	**** Failure 2 for i = 0
+	4616: stest(): failed
+	**** search(f, "and") != 10 failed
+	4617: ttest(8,8): failed
+	**** Failure 2 for i = 0
+	4618: stest(): failed
+	**** search(f, "and") != 10 failed
+	4619: ttest(9,9): failed
+	**** Failure 1 for file size
+	4620: stest(): failed
+	**** fopen("junk4600", "w") failed
+	4621: Ending test_fileop
+
+	4700: Beginning test_charset
+	**** errcount:172  > ecnt:150
+	4701: "\a" == char(7)
+	4702: "\v" == char(11)
+	4703: "\e" == char(27)
+	5000: Beginning test_filesearch
+	5001: x = rm("-f", "junk5000")
+	5002: f = fopen("junk5000", "w")
+	**** Unable to open "junk5000" for writing
+
+	5100: Beginning test_newdecl
+	5101: test5100(1)
+	**** errcount:173  > ecnt:172
+	5102: a5100 == 0
+	5103: b5100 == 2
+	5104: test5100(1)
+	5927: test unused
+	5928: test unused
+	5929: test unused
+	**** errcount:180  > ecnt:177
+	5930: isassoc(loc) == 0
+	5931: isassoc(a) == 1
+	5932: isassoc(ofd) == 0
+	6079: test unused
+	6080: iserror(loc) == 0
+	6081: iserror(a) == 0
+	**** Non-true result (0): 6082: iserror(ofd) == 0
+	**** Non-true result (0): 6083: iserror(cfd) == 0
+	6084: iserror(blk) == 0
+	6085: iserror(nblk) == 0
+	6086: iserror(cfg) == 0
+	6139: test unused
+	6140: isfile(loc) == 0
+	6141: isfile(a) == 0
+	**** Non-true result (0): 6142: isfile(ofd) == 1
+	**** Non-true result (0): 6143: isfile(cfd) == 1
+	6144: isfile(blk) == 0
+	6145: isfile(nblk) == 0
+	6146: isfile(cfg) == 0
+
+	6700: Beginning test_blk
+	6701: A = blk(20);
+	**** errcount:181  > ecnt:180
+	6702: size(A) == 20
+	6703: sizeof(A) == 256
+	6704: B = A;
+	6822: C == A
+	6823: fs = fopen("junk6800", "w+");
+	6824: blkcpy(fs, A);
+	**** errcount:183  > ecnt:181
+	**** Non-true result (0): 6825: size(f) == 5
+	6826: blkcpy(B = blk(), fs);
+	**** errcount:184  > ecnt:183
+	**** Non-true result (0): 6827: B == A
+	6828: blkcpy(fs, A, ,100);
+	**** errcount:185  > ecnt:184
+	**** Non-true result (0): 6829: size(f) == 105
+	6830: blkcpy(C = blk(), fs, 2, ,100)
+	**** errcount:186  > ecnt:185
+	**** Non-true result (0): 6831: C == (blk() = {1,2}
+	6832: A = blk();
+	6833: blkcpy(A, "blk6800");
+	6834: size(A) == 9
+	6900: Beginning test_name
+	6901: x = rm("-f", "junk6900")
+	6902: f = fopen("junk6900", "w")
+	**** errcount:189  > ecnt:186
+	**** Non-true result (0): 6903: name(f) == "junk6900"
+	6904: fclose(f)
+	**** errcount:190  > ecnt:189
+	6905: name(f) == null()
+	6906: A = blk("blk6900")
+	6907: name(A) == "blk6900"
+	7002: B = blk();
+	7003: copy("abc yz", A);
+	7004: copy("defg", B);
+	**** errcount:191  > ecnt:190
+	7005: strprintf("%s", A) == "abc yz"
+	7006: strprintf("%s", A[2]) == "c yz"
+	7007: strprintf("%s", A[7]) == ""
+
+	9995: freeredc()
+	9996: freestatics()
+	**** 24 error(s) found  \/++\/
+
+    We are sure some more bugs exist.  When you find them, please let
+    us know!  See the above for details on how to report and were to
+    EMail your bug reports and hopefully patches to fix them.
 
 =-=
 

CHANGES

@@ -44,6 +44,100 @@ Following is the change from calc version 2.11.0t8 to date:
 
     Misc source file cleanup for things such as } else { style consistency.
 
+    Fixed the basis for FNV-1 hashes.  Piror to this fix, the hash()
+    builtin produced FNV hash values that did not match the FNV-1
+    algorithm as specified in:
+
+	http://reality.sgi.com/chongo/tech/comp/fnv/index.html
+
+    Removed an unused argument in the function getbody() in codegen.c.
+
+    Encountering of EOF in getbody() will cause a scanerror rather then
+    stop activity.  This will now result in a scanerror:
+
+	echo 'define f(x) { ' > myfile
+	calc -i read myfile
+
+    A '{' at the start of a command and a later matching '}' surrounding zero
+    or more statements (and possibly newlines) results in a function body to
+    be "evaluated".   This permits another command to follow on the same
+    line as the '}' as in:
+
+		{display(5)} read something;
+	and:
+		{static a = 5} define f(x) = a + x;
+
+    String constants can now be concatenated.  For exmaple:
+
+	s = "curds" ' and ' "whey";
+
+    Added FNV hash to the regression test suite.
+
+    Added Ernest Bowen's <ernie@turing.une.edu.au> fix for the
+    FNV regression test of the hash() builtin function.
+
+    Added Ernest Bowen's <ernie@turing.une.edu.au> patch to improve
+    the way config("calc_debug").  Now the lower 4 bits of the
+    config("calc_debug") parameter have the following meaning:
+
+       n               Meaning of bit n of config("calc_debug")
+
+       0       Outputs shell commands prior to execution.
+
+       1       Outputs currently active functions when a quit instruction
+               is executed.
+
+       2       Some details of shs, shs1 and md5 hash states are included
+               in the output when these are printed.
+
+       3       When a function constructs a block value, tests are
+               made that the result has the properties required for use of
+               that block, e.g. that the pointer to the start of the
+               block is not NULL, and that its "length" is not negative.
+               A failure will result in a runtime error.
+
+    Changed the meaning of (config("calc_debug") & 1) from only printing
+    the shell commands (and pausing) while displaying help files into
+    the printing of any shell command prior to execution.
+
+    Documented the meaning of config("lib_debug"):
+
+	n               Meaning of bit n of config("lib_debug")
+
+	0       When a function is defined, redefined or undefined at
+		interactive level, a message saying what has been done
+		is displayed.
+
+	1       When a function is defined, redefined or undefined during
+		the reading of a file, a message saying what has been done
+		is displayed.
+
+	The value for config("lib_debug") in both oldstd and newstd is
+	3, but if calc is invoked with the -d flag, its initial value
+	is zero.  Thus, if calc is started without the -d flag, until
+	config("lib_debug") is changed, a message will be output when a
+	function is defined either interactively or during the reading
+	of a file.
+
+    Changed the calc lib files to reflect the new config("lib_debug")
+    bit field meaning.  Calc lib files that need to print extra information
+    should now do something such as:
+
+	if (config("lib_debug") & 3) {
+		print "obj xyz defined";
+		print "funcA([val1 [, val2]]) defined";
+		print "funcB(size, mass, ...) defined";
+	}
+
+    Fixed the help/custom_cal, help/new_custom, and help/copy files so
+    that they contain the correct contents instead of the 'usage' file.
+
+    Fixed problem with loss of bindings when .calc -i args runs into
+    an error while processing 'args' and drops into interactive mode
+    without the terminal bindings being set.
+
+    Fixed misc compiler warnings.
+
 
 Following is the change from calc version 2.11.0t7 to 2.11.0t7.5:
 

addop.c

@@ -164,8 +164,8 @@ endfunc(void)
 			size += dumpop(&fp->f_opcodes[size]);
 		}
 	}
-	if ((inputisterminal() && conf->lib_debug & 1) ||
+	if ((inputisterminal() && conf->lib_debug & LIBDBG_STDIN_FUNC) ||
-		(!inputisterminal() && conf->lib_debug & 2)) {
+		(!inputisterminal() && conf->lib_debug & LIBDBG_FILE_FUNC)) {
 		printf("%s(", fp->f_name);
 		for (index = 0; index <  fp->f_paramcount; index++) {
 			if (index)
@@ -238,8 +238,8 @@ rmuserfunc(char *name)
 		return;
 	freenumbers(functions[index]);
 	free(functions[index]);
-	if ((inputisterminal() && conf->lib_debug & 1) ||
+	if ((inputisterminal() && conf->lib_debug & LIBDBG_STDIN_FUNC) ||
-			(!inputisterminal() && conf->lib_debug & 2))
+		    (!inputisterminal() && conf->lib_debug & LIBDBG_FILE_FUNC))
 		printf("%s() undefined\n", name);
 	functions[index] = NULL;
 }

assocfunc.c

@@ -57,7 +57,7 @@ associndex(ASSOC *ap, BOOL create, long dim, VALUE *indices)
 	 * so that we can first select the correct hash chain, and
 	 * also so we can quickly compare each element for a match.
 	 */
-	hash = (QCKHASH)0;
+	hash = FNV1_32_BASIS;
 	for (i = 0; i < dim; i++)
 		hash = hashvalue(&indices[i], hash);
 

block.c

@@ -104,7 +104,7 @@ blkalloc(int len, int chunk)
 	/*
 	 * return BLOCK
 	 */
-	if (conf->calc_debug > 0) {
+	if (conf->calc_debug & CALCDBG_BLOCK) {
 		blkchk(nblk);
 	}
 	return nblk;
@@ -145,13 +145,11 @@ blk_free(BLOCK *blk)
  * debug time, we plan to call this function often.  Once we are satisfied,
  * we will normally call this code only in a few places.
  *
- * This function is normally called whenever the following builtins are called:
+ * If "calc_debug" has the bit corresponding to CALCDBG_BLOCK set, this
+ * function is called during execution of the following builtins:
  *
  *	alloc(), realloc(), free()
  *
- * unless the "calc_debug" is set to -1.  If "calc_debug" is > 0, then
- * most blk builtins will call this function.
- *
  * given:
  *	blk	- the BLOCK to check
  *
@@ -166,7 +164,7 @@ blkchk(BLOCK *blk)
 	/*
 	 * firewall - general sanity check
 	 */
-	if (conf->calc_debug == -1) {
+	if ((conf->calc_debug & CALCDBG_BLOCK) == 0) {
 		/* do nothing when debugging is disabled */
 		return;
 	}
@@ -231,7 +229,7 @@ blkrealloc(BLOCK *blk, int newlen, int newchunk)
 	/*
 	 * firewall
 	 */
-	if (conf->calc_debug != -1) {
+	if (conf->calc_debug & CALCDBG_BLOCK) {
 		blkchk(blk);
 	}
 
@@ -290,7 +288,7 @@ blkrealloc(BLOCK *blk, int newlen, int newchunk)
 			memset(blk->data, 0, blk->maxsize);
 		}
 		blk->datalen = 0;
-		if (conf->calc_debug > 0) {
+		if (conf->calc_debug & CALCDBG_BLOCK) {
 			blkchk(blk);
 		}
 		return blk;
@@ -321,7 +319,7 @@ blkrealloc(BLOCK *blk, int newlen, int newchunk)
 	/*
 	 * return realloced type
 	 */
-	if (conf->calc_debug > 0) {
+	if (conf->calc_debug & CALCDBG_BLOCK) {
 		blkchk(blk);
 	}
 	return blk;
@@ -349,7 +347,7 @@ blktrunc(BLOCK *blk)
 	/*
 	 * firewall
 	 */
-	if (conf->calc_debug != -1) {
+	if (conf->calc_debug & CALCDBG_BLOCK) {
 		blkchk(blk);
 	}
 
@@ -370,7 +368,7 @@ blktrunc(BLOCK *blk)
 		/*NOTREACHED*/
 	}
 	blk->data[0] = (USB8)0;
-	if (conf->calc_debug > 0) {
+	if (conf->calc_debug & CALCDBG_BLOCK) {
 		blkchk(blk);
 	}
 	return;

codegen.c

@@ -31,7 +31,7 @@ static void getshowstatement(void);
 static void getfunction(void);
 static void ungetfunction(void);
 static void getbody(LABEL *contlabel, LABEL *breaklabel,
-		    LABEL *nextcaselabel, LABEL *defaultlabel, BOOL toplevel);
+		    LABEL *nextcaselabel, LABEL *defaultlabel);
 static void getdeclarations(int symtype);
 static void getsimpledeclaration (int symtype);
 static int getonevariable (int symtype);
@@ -190,22 +190,26 @@ evaluate(BOOL nestflag)
 
 	funcname = (nestflag ? "**" : "*");
 	beginfunc(funcname, nestflag);
-	if (nestflag)
+	if (gettoken() == T_LEFTBRACE) {
-		(void) tokenmode(TM_DEFAULT);
+		getbody(NULL_LABEL, NULL_LABEL, NULL_LABEL, NULL_LABEL);
-	while (loop) {
+	} else {
-		switch (gettoken()) {
+		if (nestflag)
-			case T_SEMICOLON:
+			(void) tokenmode(TM_DEFAULT);
-				break;
+		rescantoken();
+		while (loop) {
+			switch (gettoken()) {
+				case T_SEMICOLON:
+					break;
+				case T_NEWLINE:
+				case T_EOF:
+					loop = 0;
+					break;
 
-			case T_NEWLINE:
+				default:
-			case T_EOF:
+					rescantoken();
-				loop = 0;
+					getstatement(NULL_LABEL, NULL_LABEL,
-				break;
+						NULL_LABEL, NULL_LABEL);
-
+			}
-			default:
-				rescantoken();
-				getstatement(NULL_LABEL, NULL_LABEL,
-					NULL_LABEL, NULL_LABEL);
 		}
 	}
 	addop(OP_UNDEF);
@@ -322,13 +326,11 @@ getfunction(void)
 	}
 	switch (gettoken()) {
 		case T_ASSIGN:
-			rescantoken();
 			getsimplebody();
 			break;
 		case T_LEFTBRACE:
-			rescantoken();
 			getbody(NULL_LABEL, NULL_LABEL, NULL_LABEL,
-				NULL_LABEL, TRUE);
+				NULL_LABEL);
 			break;
 		default:
 			scanerror(T_NULL,
@@ -347,11 +349,6 @@ getfunction(void)
 static void
 getsimplebody(void)
 {
-	if (gettoken() != T_ASSIGN) {
-		scanerror(T_SEMICOLON,
-		    "Missing equals for simple function body");
-		return;
-	}
 	(void) tokenmode(TM_NEWLINES);
 	(void) getexprlist();
 	addop(OP_RETURN);
@@ -365,14 +362,10 @@ getsimplebody(void)
  */
 /*ARGSUSED*/
 static void
-getbody(LABEL *contlabel, LABEL *breaklabel, LABEL *nextcaselabel, LABEL *defaultlabel, BOOL toplevel)
+getbody(LABEL *contlabel, LABEL *breaklabel, LABEL *nextcaselabel, LABEL *defaultlabel)
 {
 	int oldmode;
 
-	if (gettoken() != T_LEFTBRACE) {
-		scanerror(T_SEMICOLON, "Missing left brace for function body");
-		return;
-	}
 	oldmode = tokenmode(TM_DEFAULT);
 	while (TRUE) {
 		switch (gettoken()) {
@@ -380,6 +373,10 @@ getbody(LABEL *contlabel, LABEL *breaklabel, LABEL *nextcaselabel, LABEL *defaul
 			(void) tokenmode(oldmode);
 			return;
 
+		case T_EOF:
+			scanerror(T_SEMICOLON, "End-of-file in function body");
+			return;
+
 		default:
 			rescantoken();
 			getstatement(contlabel, breaklabel, nextcaselabel, defaultlabel);
@@ -595,8 +592,7 @@ getstatement(LABEL *contlabel, LABEL *breaklabel, LABEL *nextcaselabel, LABEL *d
 		break;
 
 	case T_LEFTBRACE:
-		rescantoken();
+		getbody(contlabel, breaklabel, nextcaselabel, defaultlabel);
-		getbody(contlabel, breaklabel, nextcaselabel, defaultlabel, FALSE);
 		return;
 
 	case T_IF:
@@ -866,6 +862,17 @@ getstatement(LABEL *contlabel, LABEL *breaklabel, LABEL *nextcaselabel, LABEL *d
 		}
 		break;
 
+	case T_ABORT:
+		switch (gettoken()) {
+			case T_STRING:
+				addopone(OP_ABORT, tokenstring());
+				break;
+			default:
+				addopone(OP_ABORT, -1);
+				rescantoken();
+		}
+		break;
+
 	case T_SYMBOL:
 		if (nextchar() == ':') {	/****HACK HACK ****/
 			definelabel(tokensymbol());

config.h

@@ -134,13 +134,31 @@ struct config {
 	int blkverbose;		/* TRUE => print all lines if a block */
 	int blkbase;		/* block output base */
 	int blkfmt;		/* block output style */
-	int lib_debug;		/* library debug: <0 none, 0 default, >0 more */
+	int lib_debug;		/* library debug, see LIB_DEBUG_XXX below */
-	int calc_debug;		/* internal debug: <0 none, 0 default,>0 more */
+	int calc_debug;		/* internal debug, see CALC_DEBUG_XXX below */
 	int user_debug;		/* user defined debug value: 0 default */
 };
 typedef	struct config CONFIG;
 
 
+/*
+ * lib_debug bit masks
+ */
+#define LIBDBG_STDIN_FUNC   (0x00000001)    /* interactive func define debug */
+#define LIBDBG_FILE_FUNC    (0x00000002)    /* file read func define debug */
+#define LIBDBG_MASK	    (0x00000003)
+
+
+/*
+ * calc_debug bit masks
+ */
+#define CALCDBG_SYSTEM	    (0x00000001)    /* print system cmd prior to exec */
+#define CALCDBG_FUNC_QUIT   (0x00000002)    /* active functions when quit */
+#define CALCDBG_HASH_STATE  (0x00000004)    /* hash state details */
+#define CALCDBG_BLOCK	    (0x00000008)    /* block debug */
+#define CALCDBG_MASK	    (0x0000000f)
+
+
 /*
  * global configuration states and aliases
  */

func.c

@@ -1524,16 +1524,12 @@ static VALUE
 f_hash(int count, VALUE **vals)
 {
 	QCKHASH hash;
-	long lhash;
 	VALUE result;
 
-	hash = (QCKHASH)0;
+	hash = FNV1_32_BASIS;
 	while (count-- > 0)
 		hash = hashvalue(*vals++, hash);
-	lhash = (long) hash;
+	result.v_num = utoq((FULL) hash);
-	if (lhash < 0)
-		lhash = -lhash;
-	result.v_num = itoq(lhash);
 	result.v_type = V_NUM;
 	return result;
 }
@@ -6041,6 +6037,9 @@ f_system(VALUE *vp)
 		/*NOTREACHED*/
 	}
 	result.v_type = V_NUM;
+	if (conf->calc_debug & CALCDBG_SYSTEM) {
+		printf("%s\n", vp->v_str->s_str);
+	}
 	result.v_num = itoq((long) system(vp->v_str->s_str));
 	return result;
 }

help.c

@@ -121,9 +121,8 @@ givehelp(char *type)
 	    "else %s no such help, try: help help;fi",
 	    HELPDIR, type, pager, HELPDIR, type,
 	    CUSTOMHELPDIR, type, pager, CUSTOMHELPDIR, type, ECHO);
-	if (conf->calc_debug > 0) {
+	if (conf->calc_debug & CALCDBG_SYSTEM) {
 		printf("%s\n", helpcmd);
-		sleep(3);
 	}
 
 	/* execute the help command */

help/Makefile

@@ -258,7 +258,7 @@ calc: usage
 
 custom_cal: ../custom/CUSTOM_CAL
 	rm -f $@
-	cp usage $@
+	cp ../custom/CUSTOM_CAL $@
 	chmod 0444 $@
 	-@if [ -z "${Q}" ]; then \
 	    echo ''; \
@@ -270,7 +270,7 @@ custom_cal: ../custom/CUSTOM_CAL
 
 new_custom: ../custom/HOW_TO_ADD
 	rm -f $@
-	cp usage $@
+	cp ../custom/HOW_TO_ADD $@
 	chmod 0444 $@
 	-@if [ -z "${Q}" ]; then \
 	    echo ''; \
@@ -282,7 +282,7 @@ new_custom: ../custom/HOW_TO_ADD
 
 copy: blkcpy
 	rm -f $@
-	cp usage $@
+	cp blkcpy $@
 	chmod 0444 $@
 	-@if [ -z "${Q}" ]; then \
 	    echo ''; \

help/command

@@ -85,6 +85,10 @@ Command sequence
 	    This leaves the calculator, when given as a top-level
 	    command.
 
+    ABORT
+	    Forces an immediate quit regardless calc command line
+	    flags and termina state.
+
     CD
 	    Change the current directory to the home directory, if $HOME
 	    is set in the environment.

help/config

@@ -40,9 +40,9 @@ Configuration parameters
 	    "blkverbose"	TRUE=>print all lines, FALSE=>skip duplicates
 	    "blkbase"		block output base
 	    "blkfmt"		block output format
-	    "lib_debug"		calc library script debug level
+	    "lib_debug"		controls library script debug information
-	    "calc_debug"	internal calc debug level
+	    "calc_debug"	controls internal calc debug information
-	    "user_debug"	user defined debug level
+	    "user_debug"	for user defined debug information
 
 
     The "all" config value allows one to save/restore the configuration
@@ -78,7 +78,8 @@ Configuration parameters
     The "newstd" is not backward compatible with the historic
     configuration.  Even so, some people prefer this configuration
     and place the config("all", "newstd") command in their CALCRC
-    startup files.
+    startup files; newstd may also be established by invoking calc
+    with the flag -n.
 
     When nonzero, the "trace" parameter activates one or more features
     that may be useful for debugging.  These features correspond to
@@ -103,9 +104,12 @@ Configuration parameters
     the decimal point to be printed in real or exponential mode in
     normal unformatted printing (print, strprint, fprint) or in
     formatted printing (printf, strprintf, fprintf) when precision is not
-    specified.  The initial value is 20.  This parameter does not change
+    specified.  The initial value for oldstd is 20, for newstd 10.
-    the stored value of a number.  Where rounding is necessary, the type
+    The parameter may be changed to the value d by either
-    of rounding to be used is controlled by "outround".
+    config("display", d) or by display (d).  This parameter does not change
+    the stored value of a number.  Where rounding is necessary to
+    display up to d decimal places, the type of rounding to be used is
+    controlled by config("outround").
 
     The "epsilon" parameter specifies the default accuracy for the
     calculation of functions for which exact values are not possible or
@@ -118,9 +122,10 @@ Configuration parameters
     absolute value of the remainder usually does not exceed epsilon/2.
     Functions which require an epsilon value accept an
     optional argument which overrides this default epsilon value for
-    that single call.  (The value v can be assigned to the "epsilon"
+    that single call.  The value v can be assigned to the "epsilon"
-    parameter by epsilon(v) as well as by config("epsilon", v), and the
+    parameter by either config("epsilon", v) or epsilon(v); each of
-    current value obtained by epsilon() as well as by config("epsilon").)
+    these functions return the current epsilon value; config("epsilon")
+    or epsilon() returns but does not change the epsilon value.
     For the transcendental functions and the functions sqrt() and
     appr(), the calculated value is always a multiple of epsilon.
 
@@ -311,67 +316,64 @@ Configuration parameters
 
     The default "blkfmt" is "hd".
 
-    With regards to "lib_debug", "calc_debug" and "user_debug":
+    The "lib_debug" parameter is intended for controlling the possible
-    higher absolute values result in more detailed debugging and
+    display of special information relating to functions, objects, and
-    more verbose debug messages.  The default value is 0 in which
+    other structures created by instructions in calc scripts.
-    a very amount of debugging will be performed with nil messages.
+    Zero value of config("lib_debug") means that no such information
-    The -1 value is reserved for no debugging or messages.  Any
+    is displayed.  For other values, the non-zero bits which currently
-    value <-1 will perform debugging silently (presumably collecting
+    have meanings are as follows:
-    data to be displayed at a later time).  Values >0 result in a
-    greater degree of debugging and more verbose messages.
 
-    The "lib_debug" is reserved by convention for calc library scripts.
+	n		Meaning of bit n of config("lib_debug")
-    This config parameter takes the place of the lib_debug global variable.
-    By convention, "lib_debug" has the following meanings:
 
-	<-1	no debug messages are printed though some internal
+	0	When a function is defined, redefined or undefined at
-		    debug actions and information may be collected
+		interactive level, a message saying what has been done
+		is displayed.
 
-	-1	no debug messages are printed, no debug actions will be taken
+	1	When a function is defined, redefined or undefined during
+		the reading of a file, a message saying what has been done
+		is displayed.
 
-	0	only usage message regarding each important object are
+    The value for config("lib_debug") in both oldstd and newstd is 3,
-		    printed at the time of the read (default)
+    but if calc is invoked with the -d flag, its initial value is zero.
+    Thus, if calc is started without the -d flag, until config("lib_debug")
+    is changed, a message will be output when a function is defined
+    either interactively or during the reading of a file.
 
-	>0	messages regarding each important object are
+    The "calc_debug" is intended for controlling internal calc routines
-		    printed at the time of the read in addition
+    that test its operation, or collect or display information that
-		    to other debug messages
+    might be useful for debug purposes.  Much of the output from these
+    will make sense only to calc wizards.   Zero value (the default for
+    both oldstd and newstd) of config("lib_calc") corresponds to switching
+    off all these routines.  For nonzero value, particular bits
+    currently have the following meanings:
 
-    The "calc_debug" is reserved by convention for internal calc routines.
+	n		Meaning of bit n of config("calc_debug")
-    The output of "calc_debug" will change from release to release.
-    Generally this value is used by calc wizards and by the regress.cal
-    routine (make check).  By convention, "calc_debug" has the following
-    meanings:
 
-	<-1	reserved for future use
+	0	outputs shell commands prior to execution
 
-	-1	no debug messages are printed, no debug actions will be taken
+	1	outputs currently active functions when a quit instruction
+		is executed
 
-	0	very little, if any debugging is performed (and then mostly
+	2	some details of shs, shs1 and md5 hash states are included
-		    in alpha test code).  The only output is as a result of
+		in the output when these are printed
-		    internal fatal errors (typically either math_error() or
-		    exit() will be called). (default)
 
-	>0	a greater degree of debugging is performed and more
+	3	when a function constructs a block value, tests are
-		    verbose messages are printed (regress.cal uses 1).
+		made that the result has the properties required for use of
+		that block, e.g. that the pointer to the start of the
+		block is not NULL, and that its "length" is not negative.
+		A failure will result in a runtime error.
+
+    Bits >= 4 are reserved for future use and should not be used at this time.
 
     The "user_debug" is provided for use by users.  Calc ignores this value
     other than to set it to 0 by default (for both "oldstd" and "newstd").
-    No calc code or shipped library will change this value other than
+    No calc code or shipped library should change this value.  Users
-    during startup or during a config("all", xyz) call.
+    should feel free to use it in any way.   In particular they may
-
+    use particular bits for special purposes as with "calc_debug", or
-    The following is suggested as a convention for use of "user_debug".
+    they may use it to indicate a debug level with larger values
-    These are only suggestions: feel free to use it as you like:
+    indicating more stringent and more informative tests with presumably
-
+    slower operation or more memory usage, and a particular value (like
-	<-1	no debug messages are printed though some internal
+    -1 or 0) corresponding to "no tests".
-		    debug actions and information may be collected
-
-	-1	no debug messages are printed, no debug actions will be taken
-
-	0	very little, if any debugging is performed.  The only output
-		    are from fatal errors. (default)
-
-	>0	a greater degree of debugging is performed and more
-		    verbose messages are printed
 
     The following are synonyms for true:
 

help/hash

@@ -1,5 +1,5 @@
 NAME
-    hash - hash value
+    hash - FNV-1 hash value
 
 SYNOPSIS
     hash(x_1 [, x_2, x_3, ...])
@@ -12,10 +12,32 @@ TYPES
 DESCRIPTION
     Returns a hash value for one or more values of arbitrary types.
 
+    The basis of this hash algorithm was taken from an idea sent
+    as reviewer comments to the IEEE POSIX P1003.2 committee by:
+
+         Phong Vo (http://www.research.att.com/info/kpv)
+         Glenn Fowler (http://www.research.att.com/~gsf/)
+
+    In a subsequent ballot round:
+
+         Landon Curt Noll (http://reality.sgi.com/chongo)
+
+    improved on their algorithm.  Some people tried this hash
+    and found that it worked rather well.  In an EMail message
+    to Landon, they named it ``Fowler/Noll/Vo'' or the FNV hash.
+
+    FNV hashes are architected to be fast while maintaining a low
+    collision rate. The FNV speed allows one to quickly hash lots
+    of data while maintaining a reasonable collision rate.  See:
+
+         http://reality.sgi.com/chongo/tech/comp/fnv/
+
+    for more details as well as other forms of the FNV hash.
+
 EXAMPLE
     > a = isqrt(2e1000); s = "xyz";
     > hash(a,s)
-	    870000771
+	    2378490456
 
 LIMITS
     The number of arguments is not to exceed 100.
@@ -24,3 +46,4 @@ LIBRARY
     none
 
 SEE ALSO
+    sha, sha1, md5

help/statement

@@ -208,6 +208,9 @@ Statements
 
 	    Exit is an alias for quit.
 
+    ABORT
+	    Forces an immediate quit regardless calc command line
+	    flags and termina state.
 
     PRINT exprs
 	    For interactive expression evaluation, the values of all

help/todo

@@ -21,9 +21,6 @@ Very High priority items:
 
     * Update the errmax about the meaning of errmax(-1).
 
-    * Document the new meanings for bit values and the sign of
-      of config("lib_debug") in the appropriate help file(s).
-
     * Fix any 'Known bugs' as noted in the BUGS file or as
       displayed by 'calc help bugs'.
 
@@ -61,6 +58,8 @@ High priority items:
       ensure that they have not introduced new or re-introduced old bugs
       into calc.
 
+    * Consider using configure to build the calc Makefile.
+
 =-=
 
 Medium priority items:
@@ -91,3 +90,6 @@ Medium priority items:
       other stuff) in a separate library.
 
     * Clean the source code and document it better.
+
+    * Add a builtin function to access the 64 bit FNV hash which
+      is currently being used internally in seed.c.

help/wishlist

@@ -179,37 +179,3 @@ Calc Enhancement Wish List:
 
     *  Add read -once -try "filename" which would do nothing
        if "filename" was not a readable file.
-
-    * Blocks should have the following features:
-
-        + read/write to/from files (ala fread/fwrite)
-
-	+ misc memory functions (ala memcpy, memcmp, memset,
-	  memchr, etc.)
-
-	+ scatter and gather functions (to send every n-th octet
-	  to another block and to copy from n blocks, the 1st
-	  then 2nd then 3rd ... octets)
-
-    * Printing of blocks should be under the control of the
-      config() interface.  This should allow one to select
-      from any of the following formats:
-
-	+ as one long string
-
-	+ as a series of lines (< 80 chars wide)
-
-	+ in od command style (offset: value value value ...)
-
-	+ in hex dump style (offset: val val val val ...  3hf.Uas.c)
-
-    * In addition one should be able to control the following
-      aspects of printing blocks via the config() interface:
-
-	+ base (hex, octal, char, base 2)
-
-	+ amount of data (the first n octets or the entire block)
-
-	+ skipping printing of duplicate print lines (ala od)
-
-	+ have the ability to print the block as raw data

hist.c

@@ -242,7 +242,7 @@ int
 hist_getline(char *prompt, char *buf, int len)
 {
 	if (!inited)
-		(void) hist_init((char *) NULL);
+		(void) hist_init(calcbindings);
 
 	HS.prompt = prompt;
 	HS.bufsize = len - 2;

input.c

@@ -12,6 +12,12 @@
 #include <pwd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+
+#include "have_unistd.h"
+#if defined(HAVE_UNISTD_H)
+#include <unistd.h>
+#endif
+
 #include "calc.h"
 #include "conf.h"
 #include "hist.h"
@@ -633,6 +639,9 @@ ttychar(void)
 		if (*cmd == '\0' || *cmd == '\n')
 			cmd = shell;
 		if (allow_exec) {
+			if (conf->calc_debug & CALCDBG_SYSTEM) {
+				printf("%s\n", cmd);
+			}
 			system(cmd);
 		} else {
 			fprintf(stderr, "execution disallowed by -m flag\n");

lib/README

@@ -50,37 +50,41 @@ version of read:
 This will cause the needed library files to be read once.  If these
 files have already been read, the read -once will act as a noop.
 
-By convention, the config parameter "lib_debug"  is used to control
+The "lib_debug" parameter is intended for controlling the possible
-the verbosity of debug information printed by lib files.  By default,
+display of special information relating to functions, objects, and
-the "lib_debug" has a value of 0.
+other structures created by instructions in calc scripts.
+Zero value of config("lib_debug") means that no such information
+is displayed.  For other values, the non-zero bits which currently
+have meanings are as follows:
 
-The "lib_debug" config parameter takes the place of the lib_debug
+    n	    Meaning of bit n of config("lib_debug")
-global variable.  By convention, "lib_debug" has the following meanings:
 
-	<-1	no debug messages are printed though some internal
+    0	When a function is defined, redefined or undefined at
-		    debug actions and information may be collected
+	interactive level, a message saying what has been done
+	is displayed.
 
-	-1	no debug messages are printed, no debug actions will be taken
+    1	When a function is defined, redefined or undefined during
+	the reading of a file, a message saying what has been done
+	is displayed.
 
-	0	only usage message regarding each important object are
+The value for config("lib_debug") in both oldstd and newstd is 3,
-		    printed at the time of the read (default)
+but if calc is invoked with the -d flag, its initial value is zero.
+Thus, if calc is started without the -d flag, until config("lib_debug")
+is changed, a message will be output when a function is defined
+either interactively or during the reading of a file.
 
-	>0	messages regarding each important object are
+Sometimes the information printed is not enough.  In addition to the
-		    printed at the time of the read in addition
+standard information, one might want to print:
-		    to other debug messages
-
-When config("lib_debug") >= 0, function names and their arg are
-printed as they are defined.  Sometimes this printing is not enough
-information.  For example:
 
 	* useful obj definitions
 	* functions with optional args
 	* functions with optional args where the param() interface is used
 
 For these cases we suggest that you place at the bottom of your code
-something like:
+something that prints extra information if config("lib_debug") has
+either of the bottom 2 bits set:
 
-	if (config("lib_debug") >= 0) {
+	if (config("lib_debug") & 3) {
 		print "obj xyz defined";
 		print "funcA([val1 [, val2]]) defined";
 		print "funcB(size, mass, ...) defined";

lib/chrem.cal

@@ -174,7 +174,7 @@ define chrem()
     }
 }
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
     print "chrem(r1,m1 [,r2,m2 ...]) defined";
     print "chrem(rlist [,mlist]) defined";
 }

lib/deg.cal

@@ -111,6 +111,6 @@ define fixdms(a)
 	a.deg %= 360;
 }
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
     print "obj dms {deg, min, sec} defined";
 }

lib/lucas.cal

@@ -1027,7 +1027,7 @@ gen_v1(h, n)
 define
 ldebug(funct, str)
 {
-	if (config("lib_debug") > 0) {
+	if (config("lib_debug") & 3) {
 		print "DEBUG:", funct:":", str;
 	}
 	return;

lib/lucas_chk.cal

@@ -331,7 +331,7 @@ lucas_chk(high_n, quiet)
 
 		/* skip primes where h>=2^n */
 		if (highbit(h_p[i]) >= n_p[i]) {
-			if (config("lib_debug") > 0) {
+			if (config("lib_debug") & 3) {
 				print "h>=2^n skip:", h_p[i]:"*2^":n_p[i]:"-1";
 			}
 			continue;

lib/lucas_tbl.cal

@@ -152,7 +152,7 @@ d_val[97]=1045;  a_val[97]=33;  b_val[97]=1;  r_val[97]=44;
 d_val[99]=9797;  a_val[99]=97;  b_val[99]=1;  r_val[99]=388;
 d_val[100]=  51; a_val[100]= 7; b_val[100]=1; r_val[100]=2;
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
     print "d_val[100] defined";
     print "a_val[100] defined";
     print "b_val[100] defined";

lib/mfactor.cal

@@ -312,6 +312,6 @@ define mfactor(n, start_k, rept_loop, p_elim)
 	return q;
 }
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
 	print "mfactor(n [, start_k=1 [, rept_loop=10000 [, p_elim=17]]])"
 }

lib/mod.cal

@@ -189,7 +189,7 @@ define mod_pow(a, b)
 }
 
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
     print "obj mod {a} defined";
     print "mod_value defined";
     print "set mod_value as needed";

lib/poly.cal

@@ -687,6 +687,6 @@ a=pol(1,4,4,2,3,1);
 b=pol(5,16,8,1);
 c=pol(1+2i,3+4i,5+6i);
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
 	print "obj poly {p} defined";
 }

lib/quat.cal

@@ -195,6 +195,6 @@ define quat_shift(a, b)
 	return x.s;
 }
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
     print "obj quat {s, v} defined";
 }

lib/randrun.cal

@@ -122,6 +122,6 @@ define randrun(run_cnt)
     printf("max length=%d\n", max_run);
 }
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
     print "randrun([run_length]) defined";
 }

lib/regress.cal

@@ -28,8 +28,8 @@ global ecnt;				/* expected value of errcount() */
 ecnt = 0;				/* clear expected errcount() value */
 
 initcfg = config("all", "oldstd");	/* set config to startup default */
-initcfg = config("lib_debug", -4);	/* disable lib startup messages */
+initcfg = config("lib_debug", 0);	/* disable lib startup messages */
-initcfg = config("calc_debug", 1);	/* enable more internal debugging */
+initcfg = config("calc_debug", 0);	/* disable internal debugging */
 initcfg = config("all");		/* save state for later use */
 
 print '003: parsed global definitions';
@@ -6861,7 +6861,7 @@ print '181: parsed test_ptr()';
  */
 define test_newstring()
 {
-	local A, B, C, D, S, p;
+	local A, B, C, D, S, p, q;
 
 	print '7700: Beginning test_newstring';
 
@@ -6953,7 +6953,14 @@ define test_newstring()
 	print				'7762: setbit(A, 16, 0);';
 	vrfy(A == "A\255fdef",		'7763: A == "A\255fdef"');
 
-	print '7764: Ending test_newstring';
+	q = "curds" " and " "whey";
+	print				'7764: q = "curds" " and " "whey"';
+	vrfy(q == "curds and whey",	'7765: q == "curds and whey"');
+	q = "chongo" ' was ' "here";
+	print				'7766: q = "chongo" \' was \' "here"';
+	vrfy(q == "chongo was here",	'7767: q == "chongo was here"');
+
+	print '7768: Ending test_newstring';
 }
 print '182: parsed test_newstring()';
 
@@ -7115,6 +7122,8 @@ print '188: parsed test_natnumset()';
  */
 define test_somenew()
 {
+	local a, s;
+
 	print	'8200: Starting test_somenew';
 
 	vrfy(char(-1) == char(255),	'8201: char(-1) == char(255)');
@@ -7139,7 +7148,13 @@ define test_somenew()
 	vrfy(1/(1/0) == 0,		'8215: 1/(1/0) == 0');
 	vrfy(inverse(1/0) == 0,		'8216: inverse(1/0) == 0');
 
-	print '8217: Ending test_somenew';
+	a = isqrt(2e1000); s = "xyz";
+	print				'8217: a = isqrt(2e1000); s = "xyz";';
+	vrfy(hash(a,s) == 2708885378,	'8218: hash(a,s) == 2708885378');
+	vrfy(hash("curds n whey") == 2376141927,
+			'8219: hash("curds n whey") == 2376141927');
+
+	print '8220: Ending test_somenew';
 }
 print '189: parsed test_somenew()';
 
@@ -7195,16 +7210,27 @@ print '1700: Beginning read test';
 value = 0;
 vrfy(value == 0,		  '1701: value == 0');
 read "test1700";
-vrfy(value == 1,		  '1702: value == 1');
+print				  '1702: read "test1700";';
-read -once "test1700";
 vrfy(value == 1,		  '1703: value == 1');
+read -once "test1700";
+print				  '1704: read -once "test1700";';
+vrfy(value == 1,		  '1705: value == 1');
 read "test1700.cal";
-vrfy(value == 2,		  '1704: value == 2');
+print				  '1706: read "test1700.cal";';
+vrfy(value == 2,		  '1707: value == 2');
 read -once "test1700.cal";
-vrfy(value == 2,		  '1705: value == 2');
+print				  '1708: read -once "test1700.cal";';
+vrfy(value == 2,		  '1709: value == 2');
 read "test1700.cal";
-vrfy(value == 3,		  '1706: value == 3');
+print				  '1710: read "test1700.cal";';
-print '1707: Ending read test';
+vrfy(value == 3,		  '1711: value == 3');
+{++value;} read "test1700.cal";
+print				  '1712: {++value;} read "test1700.cal";';
+vrfy(value == 5,		  '1713: value == 5');
+{++value;} read -once "test1700.cal";
+print				  '1714: {++value;} read -once "test1700.cal";';
+vrfy(value == 6,		  '1715: value == 6');
+print '1716: Ending read test';
 
 print;
 return test_obj();
@@ -7279,6 +7305,9 @@ print;
 return test_size();
 print;
 
+/*
+ * 5800 assignment tests
+ */
 return test_assign(5800, 1);
 define xy5800_assign(a,b) { };
 print '5812: define xy5800_assign(a,b) { }';
@@ -7323,7 +7352,7 @@ X5800 = obj xy5800 = {1,2};
 print				  '5864: X5800 = obj xy5800 = {1,2}';
 vrfy(X5800 == (obj xy5800 = {1,2}),
 				  '5865: X5800 == (obj xy5800 = {1,2})');
-print '5899: End of 5800 sequence';
+print '5866: End of 5800 sequence';
 
 print;
 return test_is();
@@ -7407,7 +7436,10 @@ print	'8304: define h8300(x)=x^3;define i8300(x)=x-1;define j8300(x)=x+1;';
 vrfy(h8300(10) == 1000,		'8305: h8300(10) == 1000');
 vrfy(i8300(10) == 9,		'8306: i8300(10) == 9');
 vrfy(j8300(10) == 11,		'8307: j8300(10) == 11');
-print	'8308: Ending define tests';
+{static k8300 = 5} define l8300(x) = k8300 + x;
+print	'8308: {static k8300 = 5} define l8300(x) = k8300 + x;';
+vrfy(l8300(10) == 15,		'8309: l8300(10) == 15');
+print	'8310: Ending define tests';
 
 
 /*

lib/seedrandom.cal

@@ -113,7 +113,7 @@ define seedrandom(seed1, seed2, size, trials)
 			p = 2*fp+1;
 		} while (ptest(p,1,0) == 0);
 	} while(ptest(p, trials) == 0 || ptest(fp, trials) == 0);
-	if (config("lib_debug") > 0) {
+	if (config("lib_debug") & 3) {
 		print "/* 1st Blum prime */ p=", p;
 	}
 
@@ -127,7 +127,7 @@ define seedrandom(seed1, seed2, size, trials)
 			q = 2*fq+1;
 		} while (ptest(q,1,0) == 0);
 	} while(ptest(q, trials) == 0 || ptest(fq, trials) == 0);
-	if (config("lib_debug") > 0) {
+	if (config("lib_debug") & 3) {
 		print "/* 2nd Blum prime */ q=", q;
 	}
 
@@ -137,7 +137,7 @@ define seedrandom(seed1, seed2, size, trials)
 	n = p*q;				/* the Blum modulus */
  	binsize = highbit(n)+1;			/* smallest power of 2 > p*q */
 	r = pmod(rand(1<<ceil(binsize*4/5), 1<<(binsize-2)), 2, n);
-	if (config("lib_debug") >= 0) {
+	if (config("lib_debug") & 3) {
 		print "/* seed quadratic residue */ r=", r;
 		print "/* newn", binsize, "bit quadratic residue*/ newn=", n;
 	}
@@ -154,6 +154,6 @@ define seedrandom(seed1, seed2, size, trials)
 	return old_state;
 }
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
     print "seedrandom(seed1, seed2, size [, trials]) defined";
 }

lib/surd.cal

@@ -261,7 +261,7 @@ define surd_rel(a, b)
 	return sgn(x^2 - y^2 * surd_type) * sgn(x);
 }
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
     print "obj surd {a, b} defined";
     print "surd_type defined";
     print "set surd_type as needed";

lib/varargs.cal

@@ -23,6 +23,6 @@ define sc()
 	return s;
 }
 
-if (config("lib_debug") >= 0) {
+if (config("lib_debug") & 3) {
     print "sc(a, b, ...) defined";
 }

lib_calc.c

@@ -89,19 +89,19 @@ int i_flag = FALSE;	/* TRUE => go interactive if permitted */
 /*
  * global values
  */
-char *calcpath;		/* $CALCPATH or default */
+char *calcpath = NULL;		/* $CALCPATH or default */
-char *calcrc;		/* $CALCRC or default */
+char *calcrc = NULL;		/* $CALCRC or default */
-char *calcbindings;	/* $CALCBINDINGS or default */
+char *calcbindings = NULL;	/* $CALCBINDINGS or default */
-char *home;		/* $HOME or default */
+char *home = NULL;		/* $HOME or default */
-char *pager;		/* $PAGER or default */
+char *pager = NULL;		/* $PAGER or default */
-char *shell;		/* $SHELL or default */
+char *shell = NULL;		/* $SHELL or default */
-int stdin_tty = FALSE;	/* TRUE if stdin is a tty */
+int stdin_tty = FALSE;		/* TRUE if stdin is a tty */
 int havecommands = FALSE;	/* TRUE if have one or more cmd args */
 int stoponerror = FALSE;	/* >0 => stop, <0 => continue on error */
-int post_init = FALSE;	/* TRUE setjmp for math_error is ready */
+int post_init = FALSE;		/* TRUE setjmp for math_error is ready */
 
-int no_env = FALSE;	/* TRUE (-e) => ignore env vars on startup */
+int no_env = FALSE;		/* TRUE (-e) => ignore env vars on startup */
-int errmax = ERRMAX;	/* if >= 0,  maximum value for errcount */
+int errmax = ERRMAX;		/* if >= 0,  maximum value for errcount */
 
 NUMBER *epsilon_default;	/* default allowed error for float calcs */
 

md5.c

@@ -656,7 +656,7 @@ MD5_print(HASH *state)
 	/*
 	 * form the hash value
 	 */
-	if (conf->calc_debug > 0) {
+	if (conf->calc_debug & CALCDBG_HASH_STATE) {
 		char buf[DEBUG_SIZE+1];	/* hash value buffer */
 
 		/*

opcodes.c

@@ -33,6 +33,7 @@ static BOOL saveval = TRUE;		/* to enable or disable saving */
 static int calc_errno;			/* most recent error-number */
 static int errcount;			/* counts calls to error_value */
 static BOOL go;
+static BOOL abort_now;
 
 /*
  * global symbols
@@ -3139,13 +3140,21 @@ o_quit(FUNC *fp, long index)
 	if (cp)
 		printf("%s\n", cp);
 	else
-		printf("Quit statement executed\n");
+		printf("Quit or abort executed\n");
 	if (!inputisterminal() && fp->f_name[0] == '*')
 		closeinput();
 	go = FALSE;
 }
 
 
+static void
+o_abort(FUNC *fp, long index)
+{
+	abort_now = TRUE;
+	o_quit(fp, index);
+}
+
+
 static void
 o_getepsilon(void)
 {
@@ -3533,7 +3542,8 @@ static struct opcode opcodes[MAX_OPCODE+1] = {
 	{o_backslash,	OPNUL,	"BACKSLASH"},	/* unary backslash op */
 	{o_setminus,	OPNUL,	"SETMINUS"},	/* binary backslash op */
 	{o_plus,	OPNUL,	"PLUS"},	/* unary + op */
-	{o_jumpnn,	OPJMP,	"JUMPNN"}	/* jump if non-null */
+	{o_jumpnn,	OPJMP,	"JUMPNN"},	/* jump if non-null */
+	{o_abort,	OPONE,	"ABORT"}	/* abort operation */
 };
 
 
@@ -3567,6 +3577,7 @@ calculate(FUNC *fp, int argcount)
 	funcname = fp->f_name;
 	funcline = 0;
 	go = TRUE;
+	abort_now = FALSE;
 	origargcount = argcount;
 	while (argcount < fp->f_paramcount) {
 		stack++;
@@ -3697,12 +3708,19 @@ calculate(FUNC *fp, int argcount)
 		freevalue(&locals[i]);
 	if (locals != localtable)
 		free(locals);
-	if (conf->calc_debug & 2)
+	if (conf->calc_debug & CALCDBG_FUNC_QUIT)
 		printf("\t\"%s\": line %ld\n", funcname, funcline);
 	while (stack > beginstack)
 		freevalue(stack--);
 	funcname = oldname;
 	funcline = oldline;
+	if (abort_now) {
+		if (!stdin_tty)
+			run_state = RUN_EXIT;
+		else if (run_state < RUN_PRE_TOP_LEVEL)
+			run_state = RUN_PRE_TOP_LEVEL;
+		longjmp(jmpbuf, 1);
+	}
 	return;
 }
 
@@ -3748,8 +3766,10 @@ dumpop(unsigned long *pc)
 		case OP_PRINTSTRING: case OP_STRING:
 			printf(" \"%s\"\n", findstring((long)(*pc))->s_str);
 			return 2;
-		case OP_QUIT:
+		case OP_QUIT: case OP_ABORT:
-			printf(" \"%s\"\n", findstring((long)(*pc))->s_str);
+			if ((long)(*pc) >= 0)
+			    printf(" \"%s\"", findstring((long)(*pc))->s_str);
+			putchar('\n');
 			return 2;
 		case OP_INDEXADDR:
 			printf(" %ld %ld\n", pc[0], pc[1]);

opcodes.h

@@ -144,7 +144,8 @@
 #define OP_SETMINUS	129L	/* binary backslash */
 #define OP_PLUS		130L	/* unary + */
 #define OP_JUMPNN	131L	/* jump if top value is non-null */
-#define MAX_OPCODE	131L	/* highest legal opcode */
+#define OP_ABORT	132L	/* abort operation */
+#define MAX_OPCODE	132L	/* highest legal opcode */
 
 
 /*

quickhash.c

@@ -56,11 +56,6 @@
 #include "zrand.h"
 #include "zrandom.h"
 
-#define ZMOST 2		/* most significant HALFs to hash */
-#define ZLEAST 2	/* least significant HALFs to hash */
-#define ZMIDDLE 4	/* HALFs in the middle to hash */
-
-
 /*
  * forward declarations
  */
@@ -71,7 +66,8 @@ static QCKHASH objhash(OBJECT *op, QCKHASH val);
 static QCKHASH randhash(RAND *r, QCKHASH val);
 static QCKHASH randomhash(RANDOM *state, QCKHASH val);
 static QCKHASH config_hash(CONFIG *cfg, QCKHASH val);
-static QCKHASH fnv_strhash(char *str, QCKHASH val);
+static QCKHASH fnv_strhash(char *ch, QCKHASH val);
+static QCKHASH fnv_STRhash(STRING *str, QCKHASH val);
 static QCKHASH fnv_fullhash(FULL *v, LEN len, QCKHASH val);
 static QCKHASH fnv_zhash(ZVALUE z, QCKHASH val);
 static QCKHASH hash_hash(HASH *hash, QCKHASH val);
@@ -79,22 +75,29 @@ static QCKHASH blk_hash(BLOCK *blk, QCKHASH val);
 
 
 /*
- * fnv - compute the next Fowler/Noll/Vo hash given a variable
+ * FNV-0 - Fowler/Noll/Vo-0 32 bit hash
  *
- * The basis of the hash algorithm was taken from an idea
+ * The basis of this hash algorithm was taken from an idea sent
- * sent by Email to the IEEE Posix P1003.2 mailing list from
+ * as reviewer comments to the IEEE POSIX P1003.2 committee by:
- * Phong Vo (kpv@research.att.com) and Glenn Fowler (gsf@research.att.com).
- * Landon Curt Noll (http://reality.sgi.com/chongo) later improved on there
- * algorithm to come up with Fowler/Noll/Vo hash.
  *
- * The magic lies in the constant 16777619, which for 32 bit hashing
+ *      Phong Vo (http://www.research.att.com/info/kpv)
- * is able to process 234936 words from the web2 dictionary without
+ *      Glenn Fowler (http://www.research.att.com/~gsf/)
- * any collisions.
  *
- * See:
+ * In a subsequent ballot round:
- *	http://reality.sgi.com/chongo/src/fnv/fnv_hash.tar.gz
+ *
- *	http://reality.sgi.com/chongo/src/fnv/h32.c
+ *      Landon Curt Noll (http://reality.sgi.com/chongo)
- *	http://reality.sgi.com/chongo/src/fnv/h64.c
+ *
+ * improved on their algorithm.  Some people tried this hash
+ * and found that it worked rather well.  In an EMail message
+ * to Landon, they named it ``Fowler/Noll/Vo'' or the FNV hash.
+ *
+ * FNV hashes are architected to be fast while maintaining a low
+ * collision rate. The FNV speed allows one to quickly hash lots
+ * of data while maintaining a reasonable collision rate.  See:
+ *
+ *      http://reality.sgi.com/chongo/tech/comp/fnv/
+ *
+ * for more details as well as other forms of the FNV hash.
  *
  * given:
  *	x	the value to hash (must not be longer than 32 bits)
@@ -160,7 +163,7 @@ hashvalue(VALUE *vp, QCKHASH val)
 		case V_COM:
 			return fnv_chash(vp->v_com, val);
 		case V_STR:
-			return fnv_strhash(vp->v_str->s_str, val);
+			return fnv_STRhash(vp->v_str, val);
 		case V_NULL:
 			return val;
 		case V_OBJ:
@@ -431,7 +434,29 @@ config_hash(CONFIG *cfg, QCKHASH val)
 
 
 /*
- * fnv_strhash - Fowler/Noll/Vo 32 bit hash of a string
+ * fnv_strhash - Fowler/Noll/Vo 32 bit hash of a null-terminated string
+ *
+ * given:
+ *	ch	the start of the string to hash
+ *	val	initial hash value
+ *
+ * returns:
+ *	a 32 bit QCKHASH value
+ */
+static QCKHASH
+fnv_strhash(char *ch, QCKHASH val)
+{
+	/*
+	 * hash each character in the string
+	 */
+	while (*ch) {
+		val = fnv(*ch++, val);
+	}
+	return val;
+}
+
+/*
+ * fnv_STRhash - Fowler/Noll/Vo 32 bit hash of a STRING
  *
  * given:
  *	str	the string to hash
@@ -441,13 +466,19 @@ config_hash(CONFIG *cfg, QCKHASH val)
  *	a 32 bit QCKHASH value
  */
 static QCKHASH
-fnv_strhash(char *str, QCKHASH val)
+fnv_STRhash(STRING *str, QCKHASH val)
 {
+	char *ch;
+	long n;
+
+	ch = str->s_str;
+	n = str->s_len;
+
 	/*
 	 * hash each character in the string
 	 */
-	while (*str) {
+	while (n-- > 0) {
-		val = fnv(*str++, val);
+		val = fnv(*ch++, val);
 	}
 	return val;
 }
@@ -490,48 +521,36 @@ fnv_fullhash(FULL *v, LEN len, QCKHASH val)
 static QCKHASH
 fnv_zhash(ZVALUE z, QCKHASH val)
 {
-	int skip;		/* HALFs to skip in the middle */
+	LEN n;
-	int i;
+	HALF *hp;
+#if BASEB == 16
+	FULL f;
+#endif
 
 	/*
-	 * hash the sign and length
+	 * hash the sign
 	 */
-	if (zisneg(z)) {
+	val = fnv(z.sign, val + V_NUM);
-		val = fnv(-(z.len), val+V_NUM);
+
-	} else {
+	n = z.len;
-		val = fnv(z.len, val+V_NUM);
+	hp = z.v;
+
+#if BASEB == 16
+	while (n > 1) {
+		f = (FULL) *hp++;
+		f |= (FULL) *hp++ << BASEB;
+		val = fnv(f, val);
+		n -= 2;
 	}
-
+	if (n) {
-	/*
+		val = fnv(*hp, val);
-	 * if a ZVALUE is short enough, hash it all
-	 */
-	if (z.len <= ZMOST+ZLEAST+ZMIDDLE) {
-		/* hash all HALFs of a short ZVALUE */
-		for (i=0; i < z.len; ++i) {
-			val = fnv(z.v[i], val);
-		}
-
-	/*
-	 * otherwise hash the ZLEAST significant HALFs followed by
-	 * ZMIDDLE HALFs followed by the ZMOST significant HALFs.
-	 */
-	} else {
-		/* hash the ZLEAST significant HALFs */
-		for (i=0; i < ZLEAST; ++i) {
-			val = fnv(z.v[i], val);
-		}
-
-		/* hash ZMIDDLE HALFs in the middle */
-		skip = (z.len-ZLEAST-ZMOST)/(ZMIDDLE + 1);
-		for (i=ZLEAST-1+skip; i < ZLEAST-1+skip*(ZMIDDLE+1); i+=skip) {
-			val = fnv(z.v[i], val);
-		}
-
-		/* hash the ZMOST significant HALFs */
-		for (i=z.len-1-ZMOST; i < z.len; ++i) {
-			val = fnv(z.v[i], val);
-		}
 	}
+#else
+	while (n--  > 0) {
+		val = fnv(*hp, val);
+		++hp;
+	}
+#endif
 	return val;
 }
 

seed.c

@@ -87,7 +87,51 @@ typedef struct s_hash64 hash64;
 
 
 /*
- * hash_buf - perform a 64 bit Fowler/Noll/Vo hash on a buffer
+ * FNV-1 initial basis
+ *
+ * We start the hash at a non-zero value at the beginning so that
+ * hashing blocks of data with all 0 bits do not map onto the same
+ * 0 hash value.  The virgin value that we use below is the hash value
+ * that we would get from following 32 ASCII characters:
+ *
+ *              chongo <Landon Curt Noll> /\../\
+ *
+ * Note that the \'s above are not back-slashing escape characters.
+ * They are literal ASCII  backslash 0x5c characters.
+ *
+ * The effect of this virgin initial value is the same as starting
+ * with 0 and pre-pending those 32 characters onto the data being
+ * hashed.
+ *
+ * Yes, even with this non-zero virgin value there is a set of data
+ * that will result in a zero hash value.  Worse, appending any
+ * about of zero bytes will continue to produce a zero hash value.
+ * But that would happen with any initial value so long as the
+ * hash of the initial was the `inverse' of the virgin prefix string.
+ *
+ * But then again for any hash function, there exists sets of data
+ * which that the hash of every member is the same value.  That is
+ * life with many to few mapping functions.  All we do here is to
+ * prevent sets whose members consist of 0 or more bytes of 0's from
+ * being such an awkward set.
+ *
+ * And yes, someone can figure out what the magic 'inverse' of the
+ * 32 ASCII character are ... but this hash function is NOT intended
+ * to be a cryptographic hash function, just a fast and reasonably
+ * good hash function.
+ */
+#if defined(HAVE_B64)
+# define FNV1_64_BASIS ((hash64)(0xcbf29ce484222325ULL))
+#else
+# define FNV1_64_BASIS_0 ((USB32)0x2325)
+# define FNV1_64_BASIS_1 ((USB32)0x8422)
+# define FNV1_64_BASIS_2 ((USB32)0x9ce4)
+# define FNV1_64_BASIS_3 ((USB32)0xcbf2)
+#endif
+
+
+/*
+ * hash_buf - perform a Fowler/Noll/Vo-1 64 bit hash
  *
  * input:
  *	buf	- start of buffer to hash
@@ -108,32 +152,33 @@ hash_buf(char *buf, unsigned len)
 	char *buf_end = buf+len;	/* beyond end of hash area */
 
 	/*
-	 * Fowler/Noll/Vo hash - hash each character in the string
+	 * FNV-1 - Fowler/Noll/Vo-1 64 bit hash
 	 *
-	 * The basis of the hash algorithm was taken from an idea
+         * The basis of this hash algorithm was taken from an idea sent
-	 * sent by Email to the IEEE POSIX P1003.2 mailing list from
+         * as reviewer comments to the IEEE POSIX P1003.2 committee by:
-	 * Phong Vo (kpv@research.att.com) and Glenn Fowler
+         *
-	 * (gsf@research.att.com).
+         *      Phong Vo (http://www.research.att.com/info/kpv)
-	 *
+         *      Glenn Fowler (http://www.research.att.com/~gsf/)
-	 * See:
+         *
-	 *	http://reality.sgi.com/chongo/src/fnv/fnv_hash.tar.gz
+         * In a subsequent ballot round:
-	 *	http://reality.sgi.com/chongo/src/fnv/h32.c
+         *
-	 *	http://reality.sgi.com/chongo/src/fnv/h64.c
+         *      Landon Curt Noll (http://reality.sgi.com/chongo)
-	 *
+         *
-	 * for information on 32bit and 64bit Fowler/Noll/Vo hashes.
+         * improved on their algorithm.  Some people tried this hash
-	 *
+         * and found that it worked rather well.  In an EMail message
-	 * Landon Curt Noll (http://reality.sgi.com/chongo) later improved
+         * to Landon, they named it ``Fowler/Noll/Vo'' or the FNV hash.
-	 * on their algorithm to come up with Fowler/Noll/Vo hash.
+         *
-	 *
+         * FNV hashes are architected to be fast while maintaining a low
-	 * The 32 hash was able to process 234936 words from the web2 dictionary
+         * collision rate. The FNV speed allows one to quickly hash lots
-	 * without any 32 bit collisions using a constant of
+         * of data while maintaining a reasonable collision rate.  See:
-	 * 16777619 = 0x1000193.
+         *
-	 *
+         *      http://reality.sgi.com/chongo/tech/comp/fnv/
-	 * The 64 bit hash uses 1099511628211 = 0x100000001b3 instead.
+         *
+         * for more details as well as other forms of the FNV hash.
 	 */
 #if defined(HAVE_B64)
 	/* hash each octet of the buffer */
-	for (hval = (hash64)0ULL; buf < buf_end; ++buf) {
+	for (hval = FNV1_64_BASIS; buf < buf_end; ++buf) {
 
 	    /* multiply by 1099511628211ULL mod 2^64 using 64 bit longs */
 	    hval *= (hash64)1099511628211ULL;
@@ -145,7 +190,11 @@ hash_buf(char *buf, unsigned len)
 #else /* HAVE_B64 */
 
 	/* hash each octet of the buffer */
-	for (val[0]=val[1]=val[2]=val[3]=0; buf < buf_end; ++buf) {
+	val[0] = FNV1_64_BASIS_0;
+	val[1] = FNV1_64_BASIS_1;
+	val[2] = FNV1_64_BASIS_2;
+	val[3] = FNV1_64_BASIS_3;
+	for (; buf < buf_end; ++buf) {
 
 	    /*
 	     * multiply by 1099511628211 mod 2^64 using 32 bit longs
@@ -167,7 +216,7 @@ hash_buf(char *buf, unsigned len)
 	    val[0] = tmp[0] & 0xffff;
 	    tmp[2] += (tmp[1] >> 16);
 	    val[1] = tmp[1] & 0xffff;
-	    val[3] += (tmp[2] >> 16);
+	    val[3] = tmp[3] + (tmp[2] >> 16);
 	    val[2] = tmp[2] & 0xffff;
 	    /*
 	     * Doing a val[3] &= 0xffff; is not really needed since it simply
@@ -181,8 +230,8 @@ hash_buf(char *buf, unsigned len)
 
 	/* convert to hash64 */
 	/* hval.w32[1] = 0xffff&(val[3]<<16)+val[2]; */
-	hval.w32[1] = val[3]<<16 + val[2];
+	hval.w32[1] = (val[3]<<16) + val[2];
-	hval.w32[0] = val[1]<<16 + val[0];
+	hval.w32[0] = (val[1]<<16) + val[0];
 
 #endif /* HAVE_B64 */
 

shs.c

@@ -696,7 +696,7 @@ shs_print(HASH *state)
 	/*
 	 * form the hash value
 	 */
-	if (conf->calc_debug > 0) {
+	if (conf->calc_debug & CALCDBG_HASH_STATE) {
 		char buf[DEBUG_SIZE+1];	/* hash value buffer */
 
 		/*

shs1.c

@@ -672,7 +672,7 @@ shs1_print(HASH *state)
 	/*
 	 * form the hash value
 	 */
-	if (conf->calc_debug > 0) {
+	if (conf->calc_debug & CALCDBG_HASH_STATE) {
 		char buf[DEBUG_SIZE+1];	/* hash value buffer */
 
 		/*

token.c

@@ -83,6 +83,7 @@ static struct keyword keywords[] = {
 	{"print",	T_PRINT},
 	{"cd",		T_CD},
 	{"undefine",	T_UNDEFINE},
+	{"abort",	T_ABORT},
 	{NULL,		0}
 };
 
@@ -438,6 +439,18 @@ eatstring(int quotechar)
 			case '"':
 			case '\'':
 				if (ch == quotechar) {
+					for (;;) {
+						ch = nextchar();
+						if (ch != ' ' && ch != '\t' &&
+							(ch != '\n' ||
+								newlines))
+							break;
+					}
+					if (ch == '"' || ch == '\'') {
+						quotechar = ch;
+						continue;
+					}
+					reread();
 					done = TRUE;
 					ch = '\0';
 				}

token.h

@@ -110,6 +110,7 @@
 #define T_PRINT			124	/* print keyword */
 #define T_CD			125	/* change directory keyword */
 #define T_UNDEFINE		126	/* undefine keyword */
+#define T_ABORT			127	/* abort operation */
 
 
 #define iskeyword(n) ((n) > 100)	/* TRUE if token is a keyword */

version.c

@@ -12,7 +12,7 @@
 #define MAJOR_VER	2	/* major version */
 #define MINOR_VER	11	/* minor version */
 #define MAJOR_PATCH	0	/* patch level or 0 if no patch */
-#define MINOR_PATCH	"8.2"	/* test number or empty string if no patch */
+#define MINOR_PATCH	"8.7"	/* test number or empty string if no patch */
 
 /*
  * calc version constants

zmath.h

@@ -144,6 +144,43 @@ typedef SB32 LEN;			/* unit of length storage */
 #endif /* LONG_BITS == 64 */
 
 
+/*
+ * FNV-1 basis
+ *
+ * We start the hash at a non-zero value at the beginning so that
+ * hashing blocks of data with all 0 bits do not map onto the same
+ * 0 hash value.  The virgin value that we use below is the hash value
+ * that we would get from following 32 ASCII characters:
+ *
+ *              chongo <Landon Curt Noll> /\../\
+ *
+ * Note that the \'s above are not back-slashing escape characters.
+ * They are literal ASCII  backslash 0x5c characters.
+ *
+ * The effect of this virgin initial value is the same as starting
+ * with 0 and pre-pending those 32 characters onto the data being
+ * hashed.
+ *
+ * Yes, even with this non-zero virgin value there is a set of data
+ * that will result in a zero hash value.  Worse, appending any
+ * about of zero bytes will continue to produce a zero hash value.
+ * But that would happen with any initial value so long as the
+ * hash of the initial was the `inverse' of the virgin prefix string.
+ *
+ * But then again for any hash function, there exists sets of data
+ * which that the hash of every member is the same value.  That is
+ * life with many to few mapping functions.  All we do here is to
+ * prevent sets whose members consist of 0 or more bytes of 0's from
+ * being such an awkward set.
+ *
+ * And yes, someone can figure out what the magic 'inverse' of the
+ * 32 ASCII character are ... but this hash function is NOT intended
+ * to be a cryptographic hash function, just a fast and reasonably
+ * good hash function.
+ */
+#define FNV1_32_BASIS ((QCKHASH)(0x811c9dc5))
+
+
 /*
  * The largest power of 10 we will compute for our decimal conversion
  * internal constants is: 10^(2^TEN_MAX).