Release calc version 2.11.0t9.2

BUGS

@@ -96,6 +96,27 @@ Known bugs:
       the terminal in a 'bad' state, as if stty -icanon -echo -echoe
       had been executed.
 
+    * Dec Alpha Linux compiling with gcc-2.95.1 (or gcc-2.95.2) and
+      -O2 fails the regression test with:
+
+	make -s check
+	000: Beginning regression tests
+	001: Some of these tests may take a while ...
+	002: Within each section, output should be numbered sequentially
+	003: parsed global definitions
+	004: parsed vrfy()
+	005: parsed prob(str)
+	006: parsed getglobalvar()
+	007: parsed test_booleans()
+	008: parsed test_variables()
+	make: *** [check] Segmentation fault (core dumped)
+
+      Other programs have reported problems when compiling -O2 with
+      gcc-2.95.1 on the Alpha and Mips.
+
+      One work-a-round is to not compile with -O2 (perhaps just -O).
+      Another work-a-round is not use gcc-2.95.1.
+
     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

@@ -28,11 +28,10 @@ Following is the change from calc version 2.11.0t8.9.1 to date:
     The eval(str) builtin will return an error-value rather than cause
     an execution error str has a scan-error.
 
-    Declaration are permitted to end with EOF as well as a newline or ';'.
+    Declarations are permitted to end with EOF as well as a newline or ';'.
 
-    When prompt() occurs in reading a file, it will take inout from
-    the terminal rather than taking it from a file.  For example,
-    this script, when read, now works:
+    When prompt() occurs while reading a file, it will take input from
+    the terminal rather than taking it from a file.  For example:
 
 	/* This demonstrates the use of prompt() and some other things  */
 	config("verbose_quit", 0);
@@ -52,17 +51,38 @@ Following is the change from calc version 2.11.0t8.9.1 to date:
 	}
 	print "Good bye";
 
-    Comments entered at inputisterminal level may be spread over several
+    Comments entered at input terminal level may be spread over several
     lines.  For example:
 
 	/*
-	 * These commands work given the file: comment.cal
-	 *
+	 * Assume that this calc script is called: comment.cal
+	 * Then these commands now work:
 	 *	cat comment.cal | calc
 	 *	calc < comment.cal
 	 */
 	print "Hello";
 
+    Added:
+
+	-D calc_debug[:lib_debug:[user_debug]]
+
+    to set the initial value of config("calc_debug"), config("lib_debug")
+    and config("user_debug").
+
+    The : separated strings of -D are interpreted as signed 32 bit values.
+    After an optional leading sign a leading zero indicates octal
+    conversion, and a leading ``0x'' or ``0X'' hexadecimal conversion.
+    Otherwise, decimal conversion is assumed.
+
+    Reordered the config structure moving calc_debug ahead of lib_debug.
+
+    Added bits 4 and 5 to config("calc_debug"):
+
+	4	Report on changes to the state of stdin as well as changes
+		to internal variables that control the setting and restoring
+		of stdin.
+
+	5	Report on changes to the run state of calc.
 
 
 Following is the change from calc version 2.11.0t8 to 2.11.0t8.9:

calc.c

@@ -40,6 +40,7 @@
  * static definitions and functions
  */
 static char *usage = "usage: %s [-c] [-C] [-d] [-e] [-h] [-i] [-m mode]\n"
+		     "\t[-D calc_debug[:lib_debug:[user_debug]]]\n"
 		     "\t[-n] [-p] [-q] [-u] [-v] [[--] calc_cmd ...]\n";
 static void intint(int arg);	/* interrupt routine */
 
@@ -55,13 +56,14 @@ main(int argc, char **argv)
 	extern char *optarg;	/* option argument */
 	extern int optind;	/* option index */
 	int c;			/* option */
+	char *p;
 	long i;
 
 	/*
 	 * parse args
 	 */
 	program = argv[0];
-	while ((c = getopt(argc, argv, "Cehim:npquvcd")) != -1) {
+	while ((c = getopt(argc, argv, "Cehim:npquvcdD:")) != -1) {
 		switch (c) {
 		case 'C':
 #if defined(CUSTOM)
@@ -126,6 +128,26 @@ main(int argc, char **argv)
 			 */
 			printf("%s (version %s)\n", CALC_TITLE, version());
 			exit(0);
+		case 'D':
+			/*
+			 * parse the -D optarg
+			 *
+			 * Could be calc_debug
+			 *	 or calc_debug:lib_debug
+			 *	 or calc_debug:lib_debug:user_debug
+			 */
+			calc_debug = optarg;
+			p = strchr(optarg, ':');
+			if (p != NULL) {
+				*p = '\0';
+				lib_debug = p+1;
+				p = strchr(lib_debug, ':');
+				if (p != NULL) {
+					*p = '\0';
+					user_debug = p+1;
+				}
+			}
+			break;
 		default:
 			/*
 			 * we are too early in processing to call
@@ -185,6 +207,8 @@ main(int argc, char **argv)
 	 */
 	libcalc_call_me_first();
 	stdin_tty = isatty(0);		/* assume stdin is on fd 0 */
+	if (conf->calc_debug & CALCDBG_TTY)
+		printf("DEBUG: stdin_tty is %d\n", stdin_tty);
 	if (want_defhelp) {
 		givehelp(DEFAULTCALCHELP);
 		libcalc_call_me_last();
@@ -239,9 +263,17 @@ main(int argc, char **argv)
 	 */
 	if (run_state == RUN_BEGIN) {
 		if (!q_flag && allow_read) {
+			if (conf->calc_debug & CALCDBG_RUNSTATE)
+				printf("DEBUG: run_state from %s to %s\n",
+				    run_state_name(run_state),
+				    run_state_name(RUN_RCFILES));
 			run_state = RUN_RCFILES;
 			runrcfiles();
 		}
+		if (conf->calc_debug & CALCDBG_RUNSTATE)
+			printf("DEBUG: run_state from %s to %s\n",
+			    run_state_name(run_state),
+			    run_state_name(RUN_PRE_CMD_ARGS));
 		run_state = RUN_PRE_CMD_ARGS;
 	}
 
@@ -252,25 +284,46 @@ main(int argc, char **argv)
 			if (inputlevel() == 0) {
 				closeinput();
 				runrcfiles();
+				if (conf->calc_debug & CALCDBG_RUNSTATE)
+				    printf("DEBUG: run_state from %s to %s\n",
+					run_state_name(run_state),
+					run_state_name(RUN_PRE_CMD_ARGS));
 				run_state = RUN_PRE_CMD_ARGS;
 			} else {
 				closeinput();
 			}
 		} else {
-			if ((havecommands && !i_flag) || !stdin_tty)
+			if ((havecommands && !i_flag) || !stdin_tty) {
+				if (conf->calc_debug & CALCDBG_RUNSTATE)
+				    printf("DEBUG: run_state from %s to %s\n",
+					run_state_name(run_state),
+					run_state_name(RUN_EXIT_WITH_ERROR));
 				run_state = RUN_EXIT_WITH_ERROR;
-			else
+			} else {
+				if (conf->calc_debug & CALCDBG_RUNSTATE)
+				    printf("DEBUG: run_state from %s to %s\n",
+					run_state_name(run_state),
+					run_state_name(RUN_PRE_CMD_ARGS));
 				run_state = RUN_PRE_CMD_ARGS;
 			}
 		}
+	}
 
 	if (run_state == RUN_PRE_CMD_ARGS) {
 		if (havecommands) {
+			if (conf->calc_debug & CALCDBG_RUNSTATE)
+				printf("DEBUG: run_state from %s to %s\n",
+				    run_state_name(run_state),
+				    run_state_name(RUN_CMD_ARGS));
 			run_state = RUN_CMD_ARGS;
 			(void) openstring(cmdbuf, (long) strlen(cmdbuf));
 			getcommands(FALSE);
 			closeinput();
 		}
+		if (conf->calc_debug & CALCDBG_RUNSTATE)
+			printf("DEBUG: run_state from %s to %s\n",
+			    run_state_name(run_state),
+			    run_state_name(RUN_PRE_TOP_LEVEL));
 		run_state = RUN_PRE_TOP_LEVEL;
 	}
 
@@ -279,19 +332,36 @@ main(int argc, char **argv)
 		if ((c_flag && !stoponerror) || stoponerror < 0) {
 			getcommands(FALSE);
 			if (inputlevel() == 0)
+				if (conf->calc_debug & CALCDBG_RUNSTATE)
+				    printf("DEBUG: run_state from %s to %s\n",
+					run_state_name(run_state),
+					run_state_name(RUN_PRE_TOP_LEVEL));
 				run_state = RUN_PRE_TOP_LEVEL;
 			closeinput();
 		} else {
 			closeinput();
-			if (!stdin_tty || !i_flag || p_flag)
+			if (!stdin_tty || !i_flag || p_flag) {
+				if (conf->calc_debug & CALCDBG_RUNSTATE)
+				    printf("DEBUG: run_state from %s to %s\n",
+					run_state_name(run_state),
+					run_state_name(RUN_EXIT_WITH_ERROR));
 				run_state = RUN_EXIT_WITH_ERROR;
-			else
+			} else {
+				if (conf->calc_debug & CALCDBG_RUNSTATE)
+				    printf("DEBUG: run_state from %s to %s\n",
+					run_state_name(run_state),
+					run_state_name(RUN_PRE_TOP_LEVEL));
 				run_state = RUN_PRE_TOP_LEVEL;
 			}
 		}
+	}
 
 	if (run_state == RUN_PRE_TOP_LEVEL) {
 		if (stdin_tty && ((havecommands && !i_flag) || p_flag)) {
+			if (conf->calc_debug & CALCDBG_RUNSTATE)
+				printf("DEBUG: run_state from %s to %s\n",
+				    run_state_name(run_state),
+				    run_state_name(RUN_EXIT));
 			run_state = RUN_EXIT;
 		} else {
 			if (stdin_tty) {
@@ -300,6 +370,10 @@ main(int argc, char **argv)
 				resetinput();
 				openterminal();
 			}
+			if (conf->calc_debug & CALCDBG_RUNSTATE)
+				printf("DEBUG: run_state from %s to %s\n",
+				    run_state_name(run_state),
+				    run_state_name(RUN_TOP_LEVEL));
 			run_state = RUN_TOP_LEVEL;
 			getcommands(TRUE);
 		}
@@ -315,6 +389,10 @@ main(int argc, char **argv)
 				reinitialize();
 				getcommands(TRUE);
 			} else {
+				if (conf->calc_debug & CALCDBG_RUNSTATE)
+				    printf("DEBUG: run_state from %s to %s\n",
+					run_state_name(run_state),
+					run_state_name(RUN_EXIT_WITH_ERROR));
 			 	run_state = RUN_EXIT_WITH_ERROR;
 			}
 		}

calc.h

@@ -208,6 +208,7 @@ typedef enum {
     RUN_EXIT_WITH_ERROR = 7	/* exit with error */
 } run;
 extern run run_state;
+extern char *run_state_name(run state);
 
 /*
  * calc version information

calc.man

@@ -15,17 +15,19 @@ calc \- arbitrary precision calculator
 .RB [ \-c ]
 .RB [ \-C ]
 .RB [ \-d ]
+.RB [ -D\ \&calc_debug[:lib_debug:[user_debug]] ]
+.br
+.in +5n
 .RB [ \-e ]
 .RB [ \-h ]
 .RB [ \-i ]
 .RB [ \-m\ \&mode ]
-.br
-.in +5n
 .RB [ \-n ]
 .RB [ \-p ]
 .RB [ \-q ]
 .RB [ \-u ]
 .RB [ \-v ]
+.br
 .RB [ calc_cmd\ \&.\|.\|. ]
 .in -5n
 .SH DESCRIPTION
@@ -122,6 +124,34 @@ It's nearly ten past six.
 This flag disables the reporting of missing calc
 startup scripts ($CALCRC).
 
+.TP
+.BR -D " calc_debug[:lib_debug:[user_debug]]"
+Force the initial value of config("calc_debug"),
+config("lib_debug") and config("user_debug").
+.sp 1
+The : separated strings are interpreted as signed 32 bit values.
+After an optional leading sign a leading zero indicates octal
+conversion, and a leading ``0x'' or ``0X'' hexadecimal
+conversion.  Otherwise, decimal conversion is assumed.
+.sp 1
+By default,
+.I calc_debug
+is 0,
+.I lib_debug
+is 3 and
+.I lib_debug
+is 0.
+.sp 1
+For more information use the following
+.B calc
+command:
+.sp 1
+.in +5n
+.nf
+help config
+.fi
+.in -5n
+
 .TP
 .B \-e
 Ignore any environment variables on startup.
@@ -182,7 +212,8 @@ This flag sets the permission mode of
 It controls the ability for
 .B calc
 to open files and execute programs.
-Mode may be a number from 0 to 7.
+.I Mode 
+may be a number from 0 to 7.
 .sp 1
 The mode value is interpreted in a way similar to that
 of the
@@ -205,8 +236,8 @@ octal mode:
 If one wished to run
 .B calc
 from a privileged user, one might want to use
-.B \-m
-0 in an effort to make
+.BR \-m " 0"
+in an effort to make
 .B calc
 somewhat more secure.
 .sp 1
@@ -214,8 +245,8 @@ Mode bits for reading and writing apply only on an
 open.
 Files already open are not effected.
 Thus if one wanted to use the
-.B \-m
-0 in an effort to make
+.BR \-m " 0"
+in an effort to make
 .B calc
 somewhat more secure, but still wanted to read and write a specific
 file, one might want to do in

config.c

@@ -94,8 +94,8 @@ CONFIG oldstd = {	/* backward compatible standard configuration */
 	FALSE,			/* skip duplicate block output lines */
 	BLK_BASE_HEX,		/* block octet print base */
 	BLK_FMT_HD_STYLE,	/* block output format */
-	3,			/* calc library debug level */
 	0,			/* internal calc debug level */
+	3,			/* calc library debug level */
 	0, 			/* user defined debug level */
 	TRUE			/* print Quit or abort executed messages */
 };
@@ -130,8 +130,8 @@ CONFIG newstd = {	/* new non-backward compatible configuration */
 	FALSE,			/* skip duplicate block output lines */
 	BLK_BASE_HEX,		/* block octet print base */
 	BLK_FMT_HD_STYLE,	/* block output format */
-	3,			/* calc library debug level */
 	0,			/* internal calc debug level */
+	3,			/* calc library debug level */
 	0, 			/* user defined debug level */
 	TRUE			/* print Quit or abort executed messages */
 };
@@ -809,20 +809,6 @@ setconfig(int type, VALUE *vp)
 		conf->blkfmt = temp;
 		break;
 
-	case CONFIG_LIB_DEBUG:
-		if (vp->v_type != V_NUM) {
-			math_error("Non numeric for lib_debug");
-			/*NOTREACHED*/
-		}
-		q = vp->v_num;
-		temp = qtoi(q);
-		if (qisfrac(q) || !zistiny(q->num)) {
-			math_error("Illegal lib_debug parameter value");
-			/*NOTREACHED*/
-		}
-		conf->lib_debug = temp;
-		break;
-
 	case CONFIG_CALC_DEBUG:
 		if (vp->v_type != V_NUM) {
 			math_error("Non numeric for calc_debug");
@@ -837,6 +823,20 @@ setconfig(int type, VALUE *vp)
 		conf->calc_debug = temp;
 		break;
 
+	case CONFIG_LIB_DEBUG:
+		if (vp->v_type != V_NUM) {
+			math_error("Non numeric for lib_debug");
+			/*NOTREACHED*/
+		}
+		q = vp->v_num;
+		temp = qtoi(q);
+		if (qisfrac(q) || !zistiny(q->num)) {
+			math_error("Illegal lib_debug parameter value");
+			/*NOTREACHED*/
+		}
+		conf->lib_debug = temp;
+		break;
+
 	case CONFIG_USER_DEBUG:
 		if (vp->v_type != V_NUM) {
 			math_error("Non numeric for user_debug");
@@ -1125,14 +1125,14 @@ config_value(CONFIG *cfg, int type, VALUE *vp)
 		i = cfg->blkfmt;
 		break;
 
-	case CONFIG_LIB_DEBUG:
-		i = cfg->lib_debug;
-		break;
-
 	case CONFIG_CALC_DEBUG:
 		i = cfg->calc_debug;
 		break;
 
+	case CONFIG_LIB_DEBUG:
+		i = cfg->lib_debug;
+		break;
+
 	case CONFIG_USER_DEBUG:
 		i = cfg->user_debug;
 		break;
@@ -1214,8 +1214,8 @@ config_cmp(CONFIG *cfg1, CONFIG *cfg2)
 	       cfg1->blkverbose != cfg2->blkverbose ||
 	       cfg1->blkbase != cfg2->blkbase ||
 	       cfg1->blkfmt != cfg2->blkfmt ||
-	       cfg1->lib_debug != cfg2->lib_debug ||
 	       cfg1->calc_debug != cfg2->calc_debug ||
+	       cfg1->lib_debug != cfg2->lib_debug ||
 	       cfg1->user_debug != cfg2->user_debug ||
 	       cfg1->verbose_quit != cfg2->verbose_quit;
 }

config.h

@@ -135,9 +135,9 @@ struct config {
 	BOOL blkverbose;	/* TRUE => print all lines if a block */
 	int blkbase;		/* block output base */
 	int blkfmt;		/* block output style */
-	int lib_debug;		/* library debug, see LIB_DEBUG_XXX below */
-	int calc_debug;		/* internal debug, see CALC_DEBUG_XXX below */
-	int user_debug;		/* user defined debug value: 0 default */
+	long calc_debug;	/* internal debug, see CALC_DEBUG_XXX below */
+	long lib_debug;		/* library debug, see LIB_DEBUG_XXX below */
+	long user_debug;	/* user defined debug value: 0 default */
 	BOOL verbose_quit;	/* TRUE => print Quit or abort executed msg */
 };
 typedef	struct config CONFIG;
@@ -158,7 +158,9 @@ typedef	struct config CONFIG;
 #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)
+#define CALCDBG_TTY	    (0x00000010)    /* report TTY state changes */
+#define CALCDBG_RUNSTATE    (0x00000020)    /* report run_state changes */
+#define CALCDBG_MASK	    (0x0000003f)
 
 
 /*
@@ -167,6 +169,9 @@ typedef	struct config CONFIG;
 extern CONFIG *conf;		/* current configuration */
 extern CONFIG oldstd;		/* backward compatible standard configuration */
 extern CONFIG newstd;		/* new non-backward compatible configuration */
+extern char *calc_debug;	/* !=NULL => value of config("calc_debug") */
+extern char *lib_debug;		/* !=NULL => value of config("lib_debug") */
+extern char *user_debug;	/* !=NULL => value of config("user_debug") */
 
 
 /*

help/config

@@ -40,8 +40,8 @@ Configuration parameters
 	    "blkverbose"	TRUE=>print all lines, FALSE=>skip duplicates
 	    "blkbase"		block output base
 	    "blkfmt"		block output format
-	    "lib_debug"		controls library script debug information
 	    "calc_debug"	controls internal calc debug information
+	    "lib_debug"		controls library script debug information
 	    "user_debug"	for user defined debug information
 	    "verbose_quit"	TRUE=>print message on empty quit or abort
 
@@ -317,29 +317,6 @@ Configuration parameters
 
     The default "blkfmt" is "hd".
 
-    The "lib_debug" parameter is intended for controlling the possible
-    display of special information relating to functions, objects, and
-    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:
-
-	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.
-
     The "calc_debug" is intended for controlling internal calc routines
     that test its operation, or collect or display information that
     might be useful for debug purposes.  Much of the output from these
@@ -364,7 +341,42 @@ Configuration parameters
 		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.
+	4	Report on changes to the state of stdin as well as changes
+		to internal variables that control the setting and restoring
+		of stdin.
+
+	5	Report on changes to the run state of calc.
+
+    Bits >= 6 are reserved for future use and should not be used at this time.
+
+    By default, "calc_debug" is 0.  The initial value may be overridden
+    by the -D command line option.
+
+    The "lib_debug" parameter is intended for controlling the possible
+    display of special information relating to functions, objects, and
+    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:
+
+	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.
+
+    By default, "lib_debug" is 3.  The -d flag changes this default to 0.
+    The initial value may be overridden by the -D command line option.
 
     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").
@@ -376,6 +388,9 @@ Configuration parameters
     slower operation or more memory usage, and a particular value (like
     -1 or 0) corresponding to "no tests".
 
+    By default, "user_debug" is 0.  The initial value may be overridden
+    by the -D command line option.
+
     The "verbose_quit" controls the print of the message:
 
 	Quit or abort executed

help/usage

@@ -2,8 +2,8 @@ Calc command line
 
     Calc has the following command line:
 
-	calc [-c] [-C] [-d] [-e] [-h] [-i] [-m mode]
-	     [-n] [-p] [-q] [-u] [-v] [calc_cmd ...]
+	calc [-c] [-C] [-d] [-D calc_debug[:lib_debug:[user_debug]]]
+	     [-e] [-h] [-i] [-m mode] [-n] [-p] [-q] [-u] [-v] [calc_cmd ...]
 
 	-c  Continue reading command lines even after an execution
 	    error has caused the abandonment of a line.
@@ -55,6 +55,22 @@ Calc command line
 	    This flag disables the reporting of missing calc
 	    startup scripts ($CALCRC).
 
+	-D calc_debug[:lib_debug:[user_debug]]
+
+	    Force the initial value of config("calc_debug"),
+	    config("lib_debug") and config("user_debug").
+
+	    The : separated strings are interpreted as signed 32 bit values.
+	    After an optional leading sign a leading zero indicates octal
+	    conversion, and a leading ``0x'' or ``0X'' hexadecimal
+	    conversion.  Otherwise, decimal conversion is assumed.
+
+	    By default, calc_debug is 0, lib_debug is 3 and lib_debug is 0.
+
+	    For more information use the following calc command:
+
+		help config
+
 	-e  Ignore any environment variables on startup.  The
 	    getenv() builtin will still return values, however.
 

hist.c

@@ -283,11 +283,16 @@ hist_init(char *filename)
 {
 	TTYSTRUCT	newtty;
 
-	if (inited)
+	if (inited) {
+		if (conf->calc_debug & CALCDBG_TTY)
+			printf("DEBUG: inited already set in hist_init\n");
 		return HIST_INITED;
+	}
 
 	inited = 1;
 	canedit = 0;
+	if (conf->calc_debug & CALCDBG_TTY)
+		printf("DEBUG: Set inited, cleared canedit in hist_init\n");
 
 	/*
 	 * open the bindings file
@@ -309,20 +314,31 @@ hist_init(char *filename)
 	closeinput();
 
 #ifdef	USE_SGTTY
-	if (ioctl(STDIN, TIOCGETP, &oldtty) < 0)
+	if (ioctl(STDIN, TIOCGETP, &oldtty) < 0) {
+		if (conf->calc_debug & CALCDBG_TTY)
+			printf("DEBUG: Cannot TIOCGETP stdin in hist_init\n");
 		return HIST_NOTTY;
+	}
 
 	newtty = oldtty;
 	newtty.sg_flags &= ~ECHO;
 	newtty.sg_flags |= CBREAK;
 
-	if (ioctl(STDIN, TIOCSETP, &newtty) < 0)
+	if (ioctl(STDIN, TIOCSETP, &newtty) < 0) {
+		if (conf->calc_debug & CALCDBG_TTY)
+			printf("DEBUG: Cannot TIOCSETP stdin in hist_init\n");
 		return HIST_NOTTY;
+	}
+	if (conf->calc_debug & CALCDBG_TTY)
+		printf("DEBUG: stty -ECHO +CBREAK in hist_init\n");
 #endif
 
 #ifdef	USE_TERMIO
-	if (ioctl(STDIN, TCGETA, &oldtty) < 0)
+	if (ioctl(STDIN, TCGETA, &oldtty) < 0) {
+		if (conf->calc_debug & CALCDBG_TTY)
+			printf("DEBUG: Cannot TCGETA stdin in hist_init\n");
 		return HIST_NOTTY;
+	}
 
 	newtty = oldtty;
 	newtty.c_lflag &= ~(ECHO | ECHOE | ECHOK);
@@ -331,13 +347,22 @@ hist_init(char *filename)
 	newtty.c_cc[VMIN] = 1;
 	newtty.c_cc[VTIME] = 0;
 
-	if (ioctl(STDIN, TCSETAW, &newtty) < 0)
+	if (ioctl(STDIN, TCSETAW, &newtty) < 0) {
+		if (conf->calc_debug & CALCDBG_TTY)
+			printf("DEBUG: Cannot TCSETAW stdin in hist_init\n");
 		return HIST_NOTTY;
+	}
+	if (conf->calc_debug & CALCDBG_TTY)
+		printf("DEBUG: stty -ECHO -ECHOE -ECHOK -ICANON +ISTRIP "
+		       "VMIN=1 VTIME=0 in hist_init\n");
 #endif
 
 #ifdef	USE_TERMIOS
-	if (tcgetattr(STDIN, &oldtty) < 0)
+	if (tcgetattr(STDIN, &oldtty) < 0) {
+		if (conf->calc_debug & CALCDBG_TTY)
+			printf("DEBUG: Cannot tcgetattr stdin in hist_init\n");
 		return HIST_NOTTY;
+	}
 
 	newtty = oldtty;
 	newtty.c_lflag &= ~(ECHO | ECHOE | ECHOK);
@@ -346,11 +371,19 @@ hist_init(char *filename)
 	newtty.c_cc[VMIN] = 1;
 	newtty.c_cc[VTIME] = 0;
 
-	if (tcsetattr(STDIN, TCSANOW, &newtty) < 0)
+	if (tcsetattr(STDIN, TCSANOW, &newtty) < 0) {
+		if (conf->calc_debug & CALCDBG_TTY)
+			printf("DEBUG: Cannot tcsetattr stdin in hist_init\n");
 		return HIST_NOTTY;
+	}
+	if (conf->calc_debug & CALCDBG_TTY)
+		printf("DEBUG: stty -ECHO -ECHOE -ECHOK -ICANON +ISTRIP "
+		       "VMIN=1 VTIME=0 in hist_init\n");
 #endif
 
 	canedit = 1;
+	if (conf->calc_debug & CALCDBG_TTY)
+		printf("DEBUG: Set canedit in hist_init\n");
 
 	return HIST_SUCCESS;
 }
@@ -363,20 +396,36 @@ void
 hist_term(void)
 {
 	if (!inited || !canedit) {
+		if (conf->calc_debug & CALCDBG_TTY) {
+			if (!inited)
+				printf("DEBUG: inited already cleared "
+				       "in hist_term\n");
+			if (!canedit)
+				printf("DEBUG: canedit already cleared "
+				       "in hist_term\n");
+		}
 		inited = 0;
+		if (conf->calc_debug & CALCDBG_TTY)
+			printf("DEBUG: Cleared inited in hist_term\n");
 		return;
 	}
 
 #ifdef	USE_SGTTY
 	(void) ioctl(STDIN, TIOCSETP, &oldtty);
+	if (conf->calc_debug & CALCDBG_TTY)
+		printf("DEBUG: TIOCSETP restored stdin in hist_term\n");
 #endif
 
 #ifdef	USE_TERMIO
 	(void) ioctl(STDIN, TCSETAW, &oldtty);
+	if (conf->calc_debug & CALCDBG_TTY)
+		printf("DEBUG: TCSETAW restored stdin in hist_term\n");
 #endif
 
 #ifdef	USE_TERMIOS
 	(void) tcsetattr(STDIN, TCSANOW, &oldtty);
+	if (conf->calc_debug & CALCDBG_TTY)
+		printf("DEBUG: TCSANOW restored stdin in hist_term\n");
 #endif
 }
 

lib/regress.cal

@@ -292,7 +292,7 @@ define test_arithmetic()
 	vrfy(8/4==2,		'404: 8 / 4 == 2');
 	vrfy(2^3==8,		'405: 2 ^ 3 == 8');
 	vrfy(9-4-2==3,		'406: 9-4-2 == 3');
-	vrfy(9-4+2==7,		'407: 9-4+2 == 6');
+	vrfy(9-4+2==7,		'407: 9-4+2 == 7');
 	vrfy(-5+2==-3,		'408: -5+2 == -3');
 	vrfy(2*3+1==7,		'409: 2*3+1 == 7');
 	vrfy(1+2*3==7,		'410: 1+2*3 == 7');

lib_calc.c

@@ -63,9 +63,9 @@ int new_std = FALSE;	/* TRUE (-n) => use newstd configuration */
 int abortlevel;		/* current level of aborts */
 BOOL inputwait;		/* TRUE if in a terminal input wait */
 jmp_buf jmpbuf;		/* for errors */
-run run_state = RUN_UNKNOWN;	/* calc startup and run state */
 char *program = "calc";		/* our name */
 char cmdbuf[MAXCMD+1+1+1];	/* command line expression + "\n\0" + guard */
+run run_state = RUN_UNKNOWN;	/* calc startup and run state */
 
 
 /*
@@ -86,6 +86,7 @@ int d_flag = FALSE;	/* TRUE => disable heading, lib_debug == 0 */
 int c_flag = FALSE;	/* TRUE => continue on error if permitted */
 int i_flag = FALSE;	/* TRUE => go interactive if permitted */
 
+
 /*
  * global values
  */
@@ -106,6 +107,10 @@ int errmax = ERRMAX;		/* if >= 0,  maximum value for errcount */
 
 NUMBER *epsilon_default;	/* default allowed error for float calcs */
 
+char *calc_debug = NULL;	/* !=NULL => value of config("calc_debug") */
+char *lib_debug = NULL;		/* !=NULL => value of config("lib_debug") */
+char *user_debug = NULL;	/* !=NULL => value of config("user_debug") */
+
 
 /*
  * initialization functions
@@ -173,6 +178,19 @@ libcalc_call_me_first(void)
 		conf->tab_ok = 0;
 	}
 
+	/*
+	 * -D flags can change calc_debug, lib_debug of user_debug
+	 */
+	if (calc_debug) {
+		conf->calc_debug = strtol(calc_debug, NULL, 0);
+	}
+	if (lib_debug) {
+		conf->lib_debug = strtol(lib_debug, NULL, 0);
+	}
+	if (user_debug) {
+		conf->user_debug = strtol(user_debug, NULL, 0);
+	}
+
 	/*
 	 * initialize
 	 */
@@ -181,6 +199,11 @@ libcalc_call_me_first(void)
 	/*
 	 * ready to rock & roll ..
 	 */
+	if (conf->calc_debug & CALCDBG_RUNSTATE) {
+		printf("DEBUG: run_state from %s to %s\n",
+		    run_state_name(run_state),
+		    run_state_name(RUN_BEGIN));
+	}
 	run_state = RUN_BEGIN;
 	init_done = 1;
 	return;
@@ -371,3 +394,33 @@ libcalc_call_me_last(void)
 	init_done = 0;
 	return;
 }
+
+
+/*
+ * run_state_name - return a constant string given a run_state
+ */
+char *
+run_state_name(run state)
+{
+	switch (state) {
+	case RUN_UNKNOWN:
+		return "RUN_UNKNOWN";
+	case RUN_BEGIN:
+		return "RUN_BEGIN";
+	case RUN_RCFILES:
+		return "RUN_RCFILES";
+	case RUN_PRE_CMD_ARGS:
+		return "RUN_PRE_CMD_ARGS";
+	case RUN_CMD_ARGS:
+		return "RUN_CMD_ARGS";
+	case RUN_PRE_TOP_LEVEL:
+		return "RUN_PRE_TOP_LEVEL";
+	case RUN_TOP_LEVEL:
+		return "RUN_TOP_LEVEL";
+	case RUN_EXIT:
+		return "RUN_EXIT";
+	case RUN_EXIT_WITH_ERROR:
+		return "RUN_EXIT_WITH_ERROR";
+	}
+	return "RUN_invalid";
+}

quickhash.c

@@ -404,8 +404,8 @@ config_hash(CONFIG *cfg, QCKHASH val)
 	value = (((value>>5) | (value<<27)) ^ (USB32)cfg->blkverbose);
 	value = (((value>>5) | (value<<27)) ^ (USB32)cfg->blkbase);
 	value = (((value>>5) | (value<<27)) ^ (USB32)cfg->blkfmt);
-	value = (((value>>5) | (value<<27)) ^ (USB32)cfg->lib_debug);
 	value = (((value>>5) | (value<<27)) ^ (USB32)cfg->calc_debug);
+	value = (((value>>5) | (value<<27)) ^ (USB32)cfg->lib_debug);
 	value = (((value>>5) | (value<<27)) ^ (USB32)cfg->user_debug);
 	value = (((value>>5) | (value<<27)) ^ (USB32)cfg->verbose_quit);
 

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	"9.1"	/* test number or empty string if no patch */
+#define MINOR_PATCH	"9.2"	/* test number or empty string if no patch */
 
 /*
  * calc version constants