Release calc version 2.11.0t8

BUGS

@@ -20,11 +20,11 @@ configuration, try backing them out and see if things get better.
 
 To be sure that your version of calc is up to date, check out:
 
-	http://reality.sgi.com/chongo/calc/calc-download.html
+	http://reality.sgi.com/chongo/tech/comp/calc/calc-download.html
 
 The calc web site is located at:
 
-	http://reality.sgi.com/chongo/calc
+	http://reality.sgi.com/chongo/tech/comp/calc
 
 =-=
 
@@ -46,7 +46,7 @@ When you send your report, please include the following information:
 
     * the type of compiler you were using
 
-    * any compiler warnings or erros that you saw
+    * any compiler warnings or errors that you saw
 
     * cd to the calc source directory, and type:
 
@@ -66,26 +66,42 @@ importantly, fixes (in the form of a context diff patch) to:
 
 =-=
 
-Known problems or mis-features:
+Known bugs:
 
-    * Many of and SEE ALSO sections of help files
+    None reported.  We are sure some bugs exist.  When you find them,
-      for builtins are either inconsistent or missing information.
+    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.
 
-    * Many of the LIBRARY sections are incorrect now that libcalc.a
+=-=
-      contains most of the calc system.
 
-    * There is some places in the source with obscure variable names
+Calc Mis-features:
-      and not much in the way of comments.  We need some major cleanup
-      and documentation.
 
-    * On a Dec Alpha, using the Dec Alpha cc (not gcc) make check for
+    * The following shell command (written in sh,ksh,bash-like form) works:
-      version 2.11.0t5.1 fails in the regression test:
 
-	From vandermj@molbio.sbphrd.com  Tue Oct  5 04:06:52 1999
+	    calc '/*
-	Subject: Re: oops, try calc version 2.10.0t5.1
+		   * comment
-	Date: Tue, 05 Oct 1999 07:06:30 -0400
+		   */
+		  print 2+3;'
 
-	Regular cc on Dec alpha, 'make check' dies with:
+      However this (also written in sh,ksh,bash-like form) does not work:
 
-	1804: surd_value(a) == 2+3i
+	    echo '/*
-	"": line 1706: Calling qfreenum with nozero links!!!
+		   * comment
+		   */
+		  print 2+3;' | calc
+
+      The 2nd example will result in an 'Unterminated comment' error.
+
+    * Calc does not support the #! exec method.  For example of the
+      following is placed in an executable file (assume the path to
+      calc is correct) called /tmp/xyzzy:
+
+	    #!/usr/local/bin/calc
+	    /*
+	     * comment
+	     */
+	    print 2+3;
+
+      Will result in '"tmp" is undefined' and '"xyzzy" is undefined'
+      error messages because calc considers $0 as an expression to
+      evaluate.

CHANGES

@@ -1,4 +1,33 @@
-Following is the change from calc version 2.11.0t7 to date:
+Following is the change from calc version 2.11.0t8 to date:
+
+    Moved 'wishlist' enhancements from the help/todo file to a new
+    help/wishlist file.  Ordered, by priority, help/todo items into
+    Very High, High and Medium priority items.
+
+    The BUGS file now has a 'bugs' section as well as a 'mis-features'
+    section.
+
+    Improved how calc internally dealt with reading EOF or '\0' characters.
+
+    Calc now allows multiple defines to occur on the same line:
+    (Thanks goes to Ernest Bowen <ernie@turing.une.edu.au>)
+
+	define f8300(x) = x^2; define g8300(x) = 1 - x;
+
+    Improved calc's ability to deal with and recover from errors.
+
+    Added inputlevel() builtin to return the input processing level.
+    In an interact mode, inputlevel() returns 0.  When directly reading 
+    a calc script, inputlevel() returns 1.  When reading a script which
+    in turn reads another script, inputlevel() returns 2.  etc...
+
+    If $CALCRC has more than one file as in file1:file2 and an error
+    occurs in file1, then calc -c will not read file2.
+
+    Fixed some of the old EMail addresses found in calc documentation.
+
+
+Following is the change from calc version 2.11.0t7 to 2.11.0t7.5:
 
     Calc has some new command line flags / command line meaning:
     (Thanks goes to Ernest Bowen <ernie@turing.une.edu.au>)
@@ -103,6 +132,48 @@ Following is the change from calc version 2.11.0t7 to date:
 	n == 0	if -c, continue, without -c, stop
 	n < 0	continue on error, even if -c was given on the command line
 
+    Calc compilation now stops at the first scanerror.
+
+    Restored the feature where -p disables the printing of leading tabs
+    as of config("tab",0) had been executed.  So using calc in a pipe:
+
+	calc -p 2+17 | whey
+
+    will write '19' instead of '\t19' to the whey command.
+
+    Updated calc man page and help/usage file to reflect recent
+    command line changes.
+
+    Converted start_done into a general calc run state enum called
+    run_state within the calc source.
+
+    Removed README.OLD.
+
+    Added the Makefile variable ${LCC} to invoke the local c compiler.
+    By default, ${CC} also run the ${LCC} compiler.  The distinction is
+    useful when using something such as purify.  In the case of ${LCC},
+    only the local C compiler is invoked.  In the case of ${CC} a purify
+    compile is invoked.  Only the source that must be compiled and run
+    on the local machine use ${LCC}; everything else uses ${CC}.
+
+    Fixed memory buffer ovreread problem in eatstring() in token.c.
+
+    Fixed memory leaks related to putenv().
+
+    Fixed memory leaks realted to srandom().
+
+    Fixed compilation warnings and problems on BSDI.
+
+    Removed ${CCMAIN} as a variable from the Makefile.  Now files
+    use either ${CFLAGS} for general C source and ${ICFLAGS} for
+    intermediate C source (e.g., special code for building hsrc files).
+
+    The main calc URL is now:
+
+	http://reality.sgi.com/chongo/tech/comp/calc
+
+    Misc calc man page fixes.
+
 
 Following is the change from calc version 2.11.0t1 to 2.11.0t6.3:
 
@@ -3677,9 +3748,6 @@ Following is the change from calc version 2.9.3t8 to 2.9.3t9.2:
 
 Following is the change from calc version 2.9.3t7 to 2.9.3t7:
 
-    WARNING: This patch is an beta test patch by chongo@toad.com
-	     (Landon Curt Noll).
-
     The 'show' command by itself will issue an error message
     that will remind one of the possible show arguments.
     (thanks to Ha S. Lam <hl@kuhep4.phsx.ukans.edu>)
@@ -3727,9 +3795,6 @@ Following is the change from calc version 2.9.3t7 to 2.9.3t7:
 
 Following is the change from calc version 2.9.2 to 2.9.3t7:
 
-    WARNING: This patch is an beta test patch by chongo@toad.com
-	     (Landon Curt Noll).
-
     Calc can now compile on OSF/1, SGI and IBM RS6000 systems.
 
     A number of systems that have both <varargs.h> and <stdarg.h> do

Makefile

@@ -352,7 +352,7 @@ CALCPAGER= more
 #CALCPAGER= cat
 #CALCPAGER= less
 
-# Debug/Optimize options for ${CC}
+# Debug/Optimize options for ${CC} and ${LCC}
 #
 #DEBUG= -O
 #DEBUG= -O -g
@@ -393,7 +393,7 @@ NO_SHARED=
 #NO_SHARED= -non_shared
 
 # On some systems where you are disabling dynamic shared libs, you may
-# need to pass a special flag to ${CC} during linking stage.
+# need to pass a special flag to ${CC} and ${LCC} during linking stage.
 #
 #    System type    			    NO_SHARED recommendation
 #
@@ -516,13 +516,12 @@ ALLOW_CUSTOM= -DCUSTOM
 # CFLAGS are all flags given to ${CC} [[often includes CCOPT, CCWARN, CCMISC]]
 # ICFLAGS are given to ${CC} for intermediate progs
 #
-# CCMAIN are flags for ${CC} when files with main() instead of CFLAGS
-#
 # LCFLAGS are CC-style flags for ${LINT}
 # LDFLAGS are flags given to ${CC} for linking .o files
 # ILDFLAGS are flags given to ${CC} for linking .o files for intermediate progs
 #
-# CC is how the the C compiler is invoked
+# LCC how the the C compiler is invoked on locally executed intermediate progs
+# CC is how the the C compiler is invoked (with an optional Purify)
 #
 ###
 #
@@ -540,13 +539,12 @@ CCMISC=
 CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
 ICFLAGS= ${CCWARN} ${CCMISC}
 #
-CCMAIN= ${ICFLAGS}
-#
 LCFLAGS=
 LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 ILDFLAGS=
 #
-CC= ${PURIFY} gcc
+LCC= gcc
+CC= ${PURIFY} ${LCC}
 #
 ###
 #
@@ -562,14 +560,13 @@ CC= ${PURIFY} gcc
 #CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
 #ICFLAGS= ${CCWARN} ${CCMISC}
 #
-#CCMAIN= ${ICFLAGS}
-#
 #LCFLAGS=
 #LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 #ILDFLAGS=
 #
-#CC= ${PURIFY} gcc
+#LCC= gcc
-#CC= ${PURIFY} gcc2
+#LCC= gcc2
+#CC= ${PURIFY} ${LCC}
 #
 ###
 #
@@ -582,13 +579,12 @@ CC= ${PURIFY} gcc
 #CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
 #ICFLAGS= ${CCWARN} ${CCMISC}
 #
-#CCMAIN= ${ICFLAGS}
-#
 #LCFLAGS=
 #LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 #ILDFLAGS=
 #
-#CC= ${PURIFY} cc
+#LCC= cc
+#CC= ${PURIFY} ${LCC}
 #
 ###
 #
@@ -613,13 +609,12 @@ CC= ${PURIFY} gcc
 #CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
 #ICFLAGS= ${CCWARN} ${CCMISC}
 #
-#CCMAIN= ${ICFLAGS}
-#
 #LCFLAGS=
 #LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 #ILDFLAGS=
 #
-#CC= ${PURIFY} cc -n32 -xansi
+#LCC= cc -n32 -xansi
+#CC= ${PURIFY} ${LCC}
 #
 ###
 #
@@ -638,13 +633,12 @@ CC= ${PURIFY} gcc
 #CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
 #ICFLAGS= ${CCWARN} ${CCMISC}
 #
-#CCMAIN= ${ICFLAGS}
-#
 #LCFLAGS=
 #LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 #ILDFLAGS=
 #
-#CC= ${PURIFY} cc
+#LCC= cc
+#CC= ${PURIFY} ${LCC}
 #
 ###
 #
@@ -657,13 +651,12 @@ CC= ${PURIFY} gcc
 #CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
 #ICFLAGS= ${CCWARN} ${CCMISC}
 #
-#CCMAIN= ${ICFLAGS}
-#
 #LCFLAGS=
 #LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 #ILDFLAGS=
 #
-#CC= ${PURIFY} cc
+#LCC= cc
+#CC= ${PURIFY} ${LCC}
 #
 ###
 #
@@ -682,13 +675,12 @@ CC= ${PURIFY} gcc
 #CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
 #ICFLAGS= ${CCWARN} ${CCMISC}
 #
-#CCMAIN= ${ICFLAGS}
-#
 #LCFLAGS=
 #LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 #ILDFLAGS=
 #
-#CC= ${PURIFY} cc
+#LCC= cc
+#CC= ${PURIFY} ${LCC}
 #
 ###
 #
@@ -702,15 +694,14 @@ CC= ${PURIFY} gcc
 #CCMISC=
 #
 #CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
-#ICFLAGS= ${CCWARN} ${CCMISC}
+#ICFLAGS= ${CCWARN} ${CCMISC} -Wno-unused
-#
-#CCMAIN= ${ICFLAGS}
 #
 #LCFLAGS=
 #LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 #ILDFLAGS=
 #
-#CC= ${PURIFY} gcc
+#LCC= gcc
+#CC= ${PURIFY} ${LCC}
 #
 ###
 #
@@ -724,15 +715,14 @@ CC= ${PURIFY} gcc
 #CCMISC=
 #
 #CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
-#ICFLAGS= ${CCWARN} ${CCMISC}
+#ICFLAGS= ${CCWARN} ${CCMISC} -Wno-unused
-#
-#CCMAIN= ${ICFLAGS}
 #
 #LCFLAGS=
 #LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 #ILDFLAGS=
 #
-#CC= ${PURIFY} cc
+#LCC= cc
+#CC= ${PURIFY} ${LCC}
 
 ##############################################################################
 #-=-=-=-=-=-=-=-=- Be careful if you change something below -=-=-=-=-=-=-=-=-#
@@ -887,6 +877,7 @@ CUSTOM_PASSDOWN= Q="${Q}" \
     LCFLAGS="${LCFLAGS}" \
     LDFLAGS="${LDFLAGS}" \
     ILDFLAGS="${ILDFLAGS}" \
+    LCC="${LCC}" \
     CC="${CC}" \
     MAKE_FILE=${MAKE_FILE} \
     SED=${SED} \
@@ -909,11 +900,11 @@ SAMPLE_PASSDOWN= Q="${Q}" \
     CCMISC="${CCMISC}" \
     CFLAGS="${CFLAGS} ${ALLOW_CUSTOM}" \
     ICFLAGS="${ICFLAGS}" \
-    CCMAIN="${CCMAIN}" \
     LCFLAGS="${LCFLAGS}" \
     LDFLAGS="${LDFLAGS}" \
     ILDFLAGS="${ILDFLAGS}" \
     CALC_LIBS="../libcalc.a ../custom/libcustcalc.a" \
+    LCC="${LCC}" \
     CC="${CC}" \
     MAKE_FILE=${MAKE_FILE} \
     SED=${SED} \
@@ -931,7 +922,7 @@ C_SRC= ${LIBSRC} ${CALCSRC} ${UTIL_C_SRC}
 # These files are found (but not built) in the distribution
 #
 DISTLIST= ${C_SRC} ${H_SRC} ${MAKE_FILE} BUGS CHANGES LIBRARY README \
-	calc.man lint.sed README.OLD HOWTO.INSTALL ${UTIL_MISC_SRC}
+	calc.man lint.sed HOWTO.INSTALL ${UTIL_MISC_SRC}
 
 # complete list of .o files
 #
@@ -981,7 +972,7 @@ calc.1: calc.man ${MAKE_FILE}
 ##
 
 calc.o: calc.c ${MAKE_FILE}
-	${CC} ${CCMAIN} ${CCOPT} ${ALLOW_CUSTOM} -c calc.c
+	${CC} ${CFLAGS} ${CCOPT} ${ALLOW_CUSTOM} -c calc.c
 
 custom.o: custom.c ${MAKE_FILE}
 	${CC} ${CFLAGS} ${ALLOW_CUSTOM} -c custom.c
@@ -1379,8 +1370,8 @@ longlong.h: longlong.c have_stdlib.h have_string.h ${MAKE_FILE}
 	${Q}echo '' >> longlong.h
 	${Q}echo '/* do we have/want to use a long long type? */' >> longlong.h
 	-${Q}rm -f longlong.o longlong
-	-${Q}${CC} ${CCMAIN} longlong.c -c 2>/dev/null; true
+	-${Q}${LCC} ${ICFLAGS} longlong.c -c 2>/dev/null; true
-	-${Q}${CC} ${ILDFLAGS} longlong.o -o longlong 2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} longlong.o -o longlong 2>/dev/null; true
 	-${Q}${SHELL} -c "./longlong ${LONGLONG_BITS} > ll_tmp 2>/dev/null" \
 	    >/dev/null 2>&1; true
 	-${Q}if [ -s ll_tmp ]; then \
@@ -1418,8 +1409,8 @@ have_fpos.h: have_fpos.c ${MAKE_FILE}
 	${Q}echo '' >> have_fpos.h
 	${Q}echo '/* do we have fgetpos & fsetpos functions? */' >> have_fpos.h
 	-${Q}rm -f have_fpos.o have_fpos
-	-${Q}${CC} ${HAVE_FPOS} ${CCMAIN} have_fpos.c -c 2>/dev/null; true
+	-${Q}${LCC} ${HAVE_FPOS} ${ICFLAGS} have_fpos.c -c 2>/dev/null; true
-	-${Q}${CC} ${ILDFLAGS} have_fpos.o -o have_fpos 2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} have_fpos.o -o have_fpos 2>/dev/null; true
 	-${Q}${SHELL} -c "./have_fpos > fpos_tmp 2>/dev/null" \
 	    >/dev/null 2>&1; true
 	-${Q}if [ -s fpos_tmp ]; then \
@@ -1459,8 +1450,8 @@ fposval.h: fposval.c have_fpos.h have_offscl.h have_posscl.h \
 	${Q}echo '' >> fposval.h
 	${Q}echo '/* what are our file position & size types? */' >> fposval.h
 	-${Q}rm -f fposval.o fposval
-	-${Q}${CC} ${CCMAIN} fposval.c -c 2>/dev/null; true
+	-${Q}${LCC} ${ICFLAGS} fposval.c -c 2>/dev/null; true
-	-${Q}${CC} ${ILDFLAGS} fposval.o -o fposval 2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} fposval.o -o fposval 2>/dev/null; true
 	${Q}${SHELL} -c "./fposval fposv_tmp >> fposval.h 2>/dev/null" \
 	    >/dev/null 2>&1; true
 	${Q}echo '' >> fposval.h
@@ -1492,8 +1483,8 @@ have_const.h: have_const.c ${MAKE_FILE}
 	${Q}echo '' >> have_const.h
 	${Q}echo '/* do we have or want const? */' >> have_const.h
 	-${Q}rm -f have_const.o have_const
-	-${Q}${CC} ${CCMAIN} ${HAVE_CONST} have_const.c -c 2>/dev/null; true
+	-${Q}${LCC} ${ICFLAGS} ${HAVE_CONST} have_const.c -c 2>/dev/null; true
-	-${Q}${CC} ${ILDFLAGS} have_const.o -o have_const 2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} have_const.o -o have_const 2>/dev/null; true
 	-${Q}${SHELL} -c "./have_const > const_tmp 2>/dev/null" \
 	    >/dev/null 2>&1; true
 	-${Q}if [ -s const_tmp ]; then \
@@ -1531,8 +1522,8 @@ have_offscl.h: have_offscl.c ${MAKE_FILE}
 	${Q}echo '' >> have_offscl.h
 	${Q}echo '' >> have_offscl.h
 	-${Q}rm -f have_offscl.o have_offscl
-	-${Q}${CC} ${CCMAIN} ${HAVE_OFFSCL} have_offscl.c -c 2>/dev/null; true
+	-${Q}${LCC} ${ICFLAGS} ${HAVE_OFFSCL} have_offscl.c -c 2>/dev/null; true
-	-${Q}${CC} ${ILDFLAGS} have_offscl.o -o have_offscl 2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} have_offscl.o -o have_offscl 2>/dev/null; true
 	-${Q}${SHELL} -c "./have_offscl > offscl_tmp 2>/dev/null" \
 	    >/dev/null 2>&1; true
 	-${Q}if [ -s offscl_tmp ]; then \
@@ -1569,8 +1560,8 @@ have_posscl.h: have_posscl.c have_fpos.h ${MAKE_FILE}
 	${Q}echo '' >> have_posscl.h
 	${Q}echo '' >> have_posscl.h
 	-${Q}rm -f have_posscl.o have_posscl
-	-${Q}${CC} ${CCMAIN} ${HAVE_POSSCL} have_posscl.c -c 2>/dev/null; true
+	-${Q}${LCC} ${ICFLAGS} ${HAVE_POSSCL} have_posscl.c -c 2>/dev/null; true
-	-${Q}${CC} ${ILDFLAGS} have_posscl.o -o have_posscl 2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} have_posscl.o -o have_posscl 2>/dev/null; true
 	-${Q}${SHELL} -c "./have_posscl > posscl_tmp 2>/dev/null" \
 	    >/dev/null 2>&1; true
 	-${Q}if [ -s posscl_tmp ]; then \
@@ -1621,8 +1612,8 @@ align32.h: align32.c longbits.h have_unistd.h ${MAKE_FILE}
 	fi
 	-${Q}if [ X = X${ALIGN32} ]; then \
 	    rm -f align32.o align32; \
-	    ${CC} ${CCMAIN} ${ALIGN32} align32.c -c 2>/dev/null; \
+	    ${LCC} ${ICFLAGS} ${ALIGN32} align32.c -c 2>/dev/null; \
-	    ${CC} ${ILDFLAGS} align32.o -o align32 2>/dev/null; \
+	    ${LCC} ${ILDFLAGS} align32.o -o align32 2>/dev/null; \
 	    ${SHELL} -c "./align32 >align32_tmp 2>/dev/null" >/dev/null 2>&1; \
 	    if [ -s align32_tmp ]; then \
 		cat align32_tmp >> align32.h; \
@@ -1662,8 +1653,8 @@ have_uid_t.h: have_uid_t.c have_unistd.h ${MAKE_FILE}
 	${Q}echo '' >> have_uid_t.h
 	${Q}echo '/* do we have or want uid_t? */' >> have_uid_t.h
 	-${Q}rm -f have_uid_t.o have_uid_t
-	-${Q}${CC} ${CCMAIN} ${HAVE_UID_T} have_uid_t.c -c 2>/dev/null; true
+	-${Q}${LCC} ${ICFLAGS} ${HAVE_UID_T} have_uid_t.c -c 2>/dev/null; true
-	-${Q}${CC} ${ILDFLAGS} have_uid_t.o -o have_uid_t 2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} have_uid_t.o -o have_uid_t 2>/dev/null; true
 	-${Q}${SHELL} -c "./have_uid_t > uid_tmp 2>/dev/null" \
 	    >/dev/null 2>&1; true
 	-${Q}if [ -s uid_tmp ]; then \
@@ -1701,8 +1692,8 @@ have_newstr.h: have_newstr.c ${MAKE_FILE}
 	${Q}echo '/* do we have or want memcpy(), memset() & strchr()? */' \
 							>> have_newstr.h
 	-${Q}rm -f have_newstr.o have_newstr
-	-${Q}${CC} ${CCMAIN} ${HAVE_NEWSTR} have_newstr.c -c 2>/dev/null; true
+	-${Q}${LCC} ${ICFLAGS} ${HAVE_NEWSTR} have_newstr.c -c 2>/dev/null; true
-	-${Q}${CC} ${ILDFLAGS} have_newstr.o -o have_newstr 2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} have_newstr.o -o have_newstr 2>/dev/null; true
 	-${Q}${SHELL} -c "./have_newstr > newstr_tmp 2>/dev/null" \
 	    >/dev/null 2>&1; true
 	-${Q}if [ -s newstr_tmp ]; then \
@@ -1739,8 +1730,8 @@ have_memmv.h: have_memmv.c ${MAKE_FILE}
 	${Q}echo '' >> have_memmv.h
 	${Q}echo '/* do we have or want memmove()? */' >> have_memmv.h
 	-${Q}rm -f have_memmv.o have_memmv
-	-${Q}${CC} ${CCMAIN} ${HAVE_MEMMOVE} have_memmv.c -c 2>/dev/null; true
+	-${Q}${LCC} ${ICFLAGS} ${HAVE_MEMMOVE} have_memmv.c -c 2>/dev/null; true
-	-${Q}${CC} ${ILDFLAGS} have_memmv.o -o have_memmv 2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} have_memmv.o -o have_memmv 2>/dev/null; true
 	-${Q}${SHELL} -c "./have_memmv > newstr_tmp 2>/dev/null" \
 	    >/dev/null 2>&1; true
 	-${Q}if [ -s newstr_tmp ]; then \
@@ -1776,8 +1767,9 @@ args.h: have_stdvs.c have_varvs.c have_string.h have_unistd.h have_string.h
 	${Q}echo '' >> args.h
 	${Q}echo '' >> args.h
 	-${Q}rm -f have_stdvs.o have_stdvs
-	-${Q}${CC} ${CCMAIN} ${HAVE_VSPRINTF} have_stdvs.c -c 2>/dev/null; true
+	-${Q}${LCC} ${ICFLAGS} ${HAVE_VSPRINTF} have_stdvs.c -c \
-	-${Q}${CC} ${ILDFLAGS} have_stdvs.o -o have_stdvs 2>/dev/null; true
+		2>/dev/null; true
+	-${Q}${LCC} ${ILDFLAGS} have_stdvs.o -o have_stdvs 2>/dev/null; true
 	-${Q}if ./have_stdvs >>args.h 2>/dev/null; then \
 	    touch have_args; \
 	else \
@@ -1785,8 +1777,9 @@ args.h: have_stdvs.c have_varvs.c have_string.h have_unistd.h have_string.h
 	fi
 	-${Q}if [ ! -f have_args ] && [ X"${HAVE_VSPRINTF}" = X ]; then \
 	    rm -f have_stdvs.o have_stdvs have_varvs.o have_varvs; \
-	    ${CC} ${CCMAIN} -DDONT_HAVE_VSPRINTF have_varvs.c -c 2>/dev/null; \
+	    ${LCC} ${ICFLAGS} -DDONT_HAVE_VSPRINTF have_varvs.c -c \
-	    ${CC} ${ILDFLAGS} have_varvs.o -o have_varvs 2>/dev/null; \
+		    2>/dev/null; \
+	    ${LCC} ${ILDFLAGS} have_varvs.o -o have_varvs 2>/dev/null; \
 	    if ./have_varvs >>args.h 2>/dev/null; then \
 		touch have_args; \
 	    else \
@@ -1865,17 +1858,17 @@ calc_errno.h: calc_errno.c ${MAKE_FILE}
 	    echo 'extern int sys_nerr;		' \
 		 '/* number of system errors */' >> calc_errno.h; \
 	else \
-	    ${CC} ${CCMAIN} -DTRY_ERRNO_NO_DECL \
+	    ${LCC} ${ICFLAGS} -DTRY_ERRNO_NO_DECL \
 		  calc_errno.c -o calc_errno 2>calc_errno_tmp; \
 	    if [ -x ./calc_errno ]; then \
 		./calc_errno >> calc_errno.h; \
 	    else \
-		${CC} ${CCMAIN} -DTRY_ERRNO_STD_DECL \
+		${LCC} ${ICFLAGS} -DTRY_ERRNO_STD_DECL \
 		      calc_errno.c -o calc_errno 2>calc_errno_tmp; \
 		if [ -x ./calc_errno ]; then \
 		    ./calc_errno >> calc_errno.h; \
 		else \
-		    ${CC} ${CCMAIN} -DTRY_ERRNO_OLD_DECL \
+		    ${LCC} ${ICFLAGS} -DTRY_ERRNO_OLD_DECL \
 			  calc_errno.c -o calc_errno 2>calc_errno_tmp; \
 		    if [ -x ./calc_errno ]; then \
 			./calc_errno >> calc_errno.h; \
@@ -1971,16 +1964,16 @@ calcerr.c: calcerr.tbl calcerr_c.sed calcerr_c.awk ${MAKE_FILE}
 ##
 
 endian.o: endian.c have_unistd.h
-	${CC} ${CCMAIN} endian.c -c
+	${LCC} ${ICFLAGS} endian.c -c
 
 endian: endian.o
-	${CC} ${ILDFLAGS} endian.o -o endian
+	${LCC} ${ICFLAGS} endian.o -o endian
 
 longbits.o: longbits.c longlong.h have_unistd.h
-	${CC} ${CCMAIN} longbits.c -c
+	${LCC} ${ICFLAGS} longbits.c -c
 
 longbits: longbits.o
-	${CC} ${ILDFLAGS} longbits.o -o longbits
+	${LCC} ${ICFLAGS} longbits.o -o longbits
 
 ##
 #
@@ -2332,10 +2325,10 @@ env:
 	@echo "CCMISC=${CCMISC}"; echo ""
 	@echo "CFLAGS=${CFLAGS}"; echo ""
 	@echo "ICFLAGS=${ICFLAGS}"; echo ""
-	@echo "CCMAIN=${CCMAIN}"; echo ""
 	@echo "LCFLAGS=${LCFLAGS}"; echo ""
 	@echo "LDFLAGS=${LDFLAGS}"; echo ""
 	@echo "ILDFLAGS=${ILDFLAGS}"; echo ""
+	@echo "LCC=${LCC}"; echo ""
 	@echo "CC=${CC}"; echo ""
 	@echo "SHELL=${SHELL}"; echo ""
 	@echo "MAKE=${MAKE}"; echo ""

README

@@ -4,7 +4,7 @@ See the HOWTO.INSTALL file for information on how to build and install calc.
 
 To be sure that your version of calc is up to date, check out:
 
-	http://reality.sgi.com/chongo/calc/calc-download.html
+	http://reality.sgi.com/chongo/tech/comp/calc/calc-download.html
 
 We are interested in any/all feedback on recent versions of calc.
 In particular we would like to hear about:
@@ -60,10 +60,12 @@ Calc is shipped with a library of calc scripts.  For a list see:
 See the file:
 
     help/todo
+    help/wishlist
 
 or run:
 
-    calc 'help todo'
+    calc help todo
+    calc help wishlist
 
 for a wish/todo list.  Code contributions are welcome.
 
@@ -84,4 +86,4 @@ your full name.
 
 The calc web site is located at:
 
-	http://reality.sgi.com/chongo/calc
+	http://reality.sgi.com/chongo/tech/comp/calc

README.OLD

@@ -1,73 +0,0 @@
-# Copyright (c) 1997 David I. Bell
-# Permission is granted to use, distribute, or modify this source,
-# provided that this copyright notice remains intact.
-#
-# Arbitrary precision calculator.
-
-  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    NOTE: This is an old historic README.  We recommend that
-	  you read README and HOWTO.INSTALL for more info.
-  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-I am allowing this calculator to be freely distributed for your enjoyment.
-Like all multi-precision programs, you should not depend absolutely on
-its results, since bugs in such programs can be insidious and only rarely
-show up.
-
--dbell-
-
-p.s. By Landon Curt Noll:
-
-Building calc in 3 easy steps:
-
-    1) Look at the makefile, and adjust it to suit your needs.
-
-       Here are some Makefile hints:
-
-	   In the past, some people have had to adjust the VARARG or
-	   TERMCONTROL because the Makefile cannot always guess
-	   correctly for certain systems.  You may need to play with
-	   these values if you experience problems.
-
-	   The default compiler used is 'cc'.  The default compiler flag
-	   is '-O'.  If you have gcc, or gcc v2 (or better) you should use
-	   that instead.   Some compilers allow for optimization beyond
-	   just -O (gcc v2 has -O2, mips cc has -O3).  You should select
-	   the best flag for speed optimization.  Calc can be cpu intensive
-	   so selecting a quality compiler and good optimization level can
-	   really pay off.
-
-    2) build calc:
-
-	make all
-
-    3) test calc:
-
-	make check
-
- ==>>>If you run into problems, follow the instructions in the BUGS file<<<==
-
-=-=
-
-For further reading:
-
-    LIBRARY
-    	explains how programs can use libcalc.a to take advantage
-	of the calc multi-precision routines.
-
-    help/todo
-	current wish list for calc
-
-    CHANGES
-	recent changes to calc
-
-    BUGS
-	known bugs, mis-features and how to report problems
-
-    help/full
-	full set of calc documentation
-
-=-=
-
-David I. Bell    dbell@auug.org.au
-chongo <Landon Curt Noll> /\../\

align32.c

@@ -3,7 +3,10 @@
  *
  * This file was written by:
  *
- *	 Landon Curt Noll  (chongo@toad.com)	chongo <was here> /\../\
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
+ *
+ *	chongo <was here> /\../\
  *
  * This code has been placed in the public domain.  Please do not
  * copyright this code.

blkcpy.c

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  */
 
 #include <stdio.h>

block.c

@@ -27,12 +27,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 

block.h

@@ -27,12 +27,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 

calc.c

@@ -11,7 +11,6 @@
 #include <pwd.h>
 #include <sys/types.h>
 #include <ctype.h>
-#include <setjmp.h>
 
 #define CALC_C
 #include "calc.h"
@@ -37,40 +36,13 @@
 #include <stdlib.h>
 #endif
 
-
-/*
- * external definitions and functions
- */
-extern int abortlevel;		/* current level of aborts */
-extern BOOL inputwait;		/* TRUE if in a terminal input wait */
-extern jmp_buf jmpbuf;		/* for errors */
-extern int isatty(int tty);	/* TRUE if fd is a tty */
-
-extern int p_flag;		/* TRUE => pipe mode */
-extern int q_flag;		/* TRUE => don't execute rc files */
-extern int u_flag;		/* TRUE => unbuffer stdin and stdout */
-extern int d_flag;		/* TRUE => disable heading, lib_debug == 0 */
-extern int stoponerror;		/* >0 => stop, <0 => continue, ==0 => use -c */
-
-extern char *pager;		/* $PAGER or default */
-extern int stdin_tty;		/* TRUE if stdin is a tty */
-extern int interactive;		/* TRUE if interactive session (no cmd args) */
-extern char *program;		/* our name */
-extern char cmdbuf[];		/* command line expression */
-
-extern char *version(void);	/* return version string */
-
-
 /*
  * static definitions and functions
  */
-static char *usage = "usage: %s [-C] [-e] [-h] [-i] [-m mode] [-n] [-p]\n"
+static char *usage = "usage: %s [-c] [-C] [-d] [-e] [-h] [-i] [-m mode]\n"
-		     "\t[-q] [-u] [-c] [-d] [[--] calc_cmd ...]\n";
+		     "\t[-n] [-p] [-q] [-u] [-v] [[--] calc_cmd ...]\n";
 static void intint(int arg);	/* interrupt routine */
 
-static int havecommands;
-static int c_flag;		/* To permit continuation after error */
-static int i_flag;		/* To go interactive if permitted */
 
 /*
  * Top level calculator routine.
@@ -163,8 +135,7 @@ main(int argc, char **argv)
 			exit(1);
 		}
 	}
-	interactive = (optind >= argc);
+	havecommands = (optind < argc);
-	havecommands = !interactive;
 
 	/*
 	 * look at the length of any trailing command args
@@ -258,77 +229,101 @@ main(int argc, char **argv)
 		post_init = TRUE;
 	}
 
+	/*
+	 * (re)establish the interrupt handler
+	 */
 	(void) signal(SIGINT, intint);
 
-	if (start_done == 0) {
+	/*
+	 * execute calc code based on the run state
+	 */
+	if (run_state == RUN_BEGIN) {
 		if (!q_flag && allow_read) {
-			start_done = 1;
+			run_state = RUN_RCFILES;
 			runrcfiles();
 		}
-		start_done = 2;
+		run_state = RUN_PRE_CMD_ARGS;
-	}
-	if (start_done == 1) {
-		fprintf(stderr, "Execution error in rcfiles\n");
-		if ((c_flag && !stoponerror) || stoponerror < 0) {
-			getcommands(FALSE);
-			start_done = 2;
-		} else {
-			if ((havecommands && !i_flag) || !stdin_tty)
-				start_done = 7;
-			else if (havecommands)
-				start_done = 4;
-			else
-				start_done = 2;
-		}
-	}
-	if (start_done == 2) {
-		if (havecommands) {
-			start_done = 3;
-			(void) openstring(cmdbuf);
-			getcommands(FALSE);
-		}
-		start_done = 4;
-	}
-	if (start_done == 3) {
-		fprintf(stderr, "Execution error in commands\n");
-		if ((c_flag && !stoponerror) || stoponerror < 0) {
-			getcommands(FALSE);
-			start_done = 4;
-		}
-		else {
-			closeinput();
-			if (!stdin_tty || !i_flag)
-				start_done = 7;
-			else
-				start_done = 4;
-		}
-	}
-	if (start_done == 4) {
-		if (stdin_tty && ((havecommands && !i_flag) || p_flag))
-			start_done = 6;
-		else
-			openterminal();
-	}
-	else if (start_done == 5) {
-		if (!stdin_tty && (!c_flag || stoponerror) && stoponerror >= 0) {
-			start_done = 7;
-		}
-		else if ((c_flag && !stoponerror) || stoponerror < 0)
-			getcommands(FALSE);
-		else
-			reinitialize();
 	}
 
-	if (start_done < 6) {
+	while (run_state == RUN_RCFILES) {
-		start_done = 5;
+		fprintf(stderr, "Error in rcfiles\n");
-		getcommands(TRUE);
+		if ((c_flag && !stoponerror) || stoponerror < 0) {
+			getcommands(FALSE);
+			closeinput();
+			if (inputisterminal())
+				run_state = RUN_PRE_CMD_ARGS;
+		} else {
+			if ((havecommands && !i_flag) || !stdin_tty)
+				run_state = RUN_EXIT_WITH_ERROR;
+			else
+				run_state = RUN_PRE_CMD_ARGS;
+		}
+	}
+
+	if (run_state == RUN_PRE_CMD_ARGS) {
+		if (havecommands) {
+			run_state = RUN_CMD_ARGS;
+			(void) openstring(cmdbuf, (long) strlen(cmdbuf));
+			getcommands(FALSE);
+			closeinput();
+		}
+		run_state = RUN_PRE_TOP_LEVEL;
+	}
+
+	while (run_state == RUN_CMD_ARGS) {
+		fprintf(stderr, "Error in commands\n");
+		if ((c_flag && !stoponerror) || stoponerror < 0) {
+			getcommands(FALSE);
+			closeinput();
+			if (inputlevel() == 0) {
+				getcommands(FALSE);
+				run_state = RUN_PRE_TOP_LEVEL;
+			}
+		} else {
+			closeinput();
+			if (!stdin_tty || !i_flag || p_flag)
+				run_state = RUN_EXIT_WITH_ERROR;
+			else
+				run_state = RUN_PRE_TOP_LEVEL;
+		}
+	}
+
+	if (run_state == RUN_PRE_TOP_LEVEL) {
+		if (stdin_tty && ((havecommands && !i_flag) || p_flag)) {
+			run_state = RUN_EXIT;
+		} else {
+			if (stdin_tty) {
+				reinitialize();
+			} else {
+				resetinput();
+				openterminal();
+			}
+			run_state = RUN_TOP_LEVEL;
+			getcommands(TRUE);
+		}
+	}
+
+	while (run_state == RUN_TOP_LEVEL) {
+		if ((c_flag && !stoponerror) || stoponerror < 0) {
+			getcommands(TRUE);
+			if (!inputisterminal())
+				closeinput();
+		} else {
+			if (stdin_tty) {
+				reinitialize();
+				getcommands(TRUE);
+			} else {
+			 	run_state = RUN_EXIT_WITH_ERROR;
+			}
+		}
 	}
 
 	/*
 	 * all done
 	 */
 	libcalc_call_me_last();
-	return (start_done - 6) ? 1 : 0;
+	return (run_state == RUN_EXIT_WITH_ERROR ||
+		run_state == RUN_UNKNOWN) ? 1 : 0;
 }
 
 

calc.h

@@ -10,6 +10,7 @@
 #if !defined(__CALC_H__)
 #define	__CALC_H__
 
+#include <setjmp.h>
 
 #include "value.h"
 
@@ -112,7 +113,7 @@ extern void trimconstants(void);
 /*
  * Input routines.
  */
-extern int openstring(char *str);
+extern int openstring(char *str, long num);
 extern int openterminal(void);
 extern int opensearchfile(char *name, char *pathlist, char *exten, int reopen_ok);
 extern char *nextline(void);
@@ -121,12 +122,12 @@ extern void reread(void);
 extern void resetinput(void);
 extern void setprompt(char *);
 extern BOOL inputisterminal(void);
+extern int inputlevel(void);
 extern char *inputname(void);
 extern long linenumber(void);
 extern void runrcfiles(void);
 extern void closeinput(void);
 
-
 /*
  * Other routines.
  */
@@ -140,21 +141,39 @@ extern void libcalc_call_me_first(void);
 extern void libcalc_call_me_last(void);
 extern void showerrors(void);
 
-
 /*
  * Initialization
  */
 extern void initialize(void);
 extern void reinitialize(void);
-
+extern int isatty(int tty);	/* TRUE if fd is a tty */
+extern char *version(void);	/* return version string */
+extern int post_init;		/* TRUE => setjmp for math_error is ready */
 
 /*
- * Global data definitions.
+ * global flags and definitions
  */
+extern int abortlevel;		/* current level of aborts */
+extern BOOL inputwait;		/* TRUE if in a terminal input wait */
+extern jmp_buf jmpbuf;		/* for errors */
+
+extern int p_flag;		/* TRUE => pipe mode */
+extern int q_flag;		/* TRUE => don't execute rc files */
+extern int u_flag;		/* TRUE => unbuffer stdin and stdout */
+extern int d_flag;		/* TRUE => disable heading, lib_debug == 0 */
+extern int c_flag;		/* TRUE => continue after error if permitted */
+extern int i_flag;		/* TRUE => try to go interactive after error */
+extern int stoponerror;		/* >0 => stop, <0 => continue, ==0 => use -c */
+
+extern char *pager;		/* $PAGER or default */
+extern int stdin_tty;		/* TRUE if stdin is a tty */
+extern int havecommands;	/* TRUE if have cmd args) */
+extern char *program;		/* our name */
+extern char cmdbuf[];		/* command line expression */
+
 extern int abortlevel;		/* current level of aborts */
 extern BOOL inputwait;		/* TRUE if in a terminal input wait */
 extern VALUE *stack;		/* execution stack */
-extern int start_done;		/* TRUE => start up processing finished */
 extern int dumpnames;		/* TRUE => dump names rather than indices */
 
 extern char *calcpath;		/* $CALCPATH or default */
@@ -172,8 +191,21 @@ extern int allow_read;	/* FALSE => may not open any files for reading */
 extern int allow_write;	/* FALSE => may not open any files for writing */
 extern int allow_exec;	/* FALSE => may not execute any commands */
 
-extern int post_init;	/* TRUE => setjmp for math_error is ready */
+/*
-
+ * calc startup and run state
+ */
+typedef enum {
+    RUN_UNKNOWN = -1,		/* unknown or unset start state */
+    RUN_BEGIN = 0,		/* calc execution starts */
+    RUN_RCFILES = 1,		/* rc files being evaluated */
+    RUN_PRE_CMD_ARGS = 2,	/* prepare to evaluate cmd args */
+    RUN_CMD_ARGS = 3,		/* cmd args being evaluated */
+    RUN_PRE_TOP_LEVEL = 4,	/* prepare to start top level activity */
+    RUN_TOP_LEVEL = 5,		/* running at top level */
+    RUN_EXIT = 6,		/* normal exit from calc */
+    RUN_EXIT_WITH_ERROR = 7	/* exit with error */
+} run;
+extern run run_state;
 
 /*
  * calc version information

calc.man

@@ -1,190 +1,356 @@
 .\"
-.\" Copyright (c) 1994 David I. Bell and Landon Curt Noll
+.\" Copyright (c) 1993 David I. Bell and Landon Curt Noll
+.\" Original man page dated 15nov93
+.\" Copyright (c) 1999 David I. Bell and Landon Curt Noll
 .\" Permission is granted to use, distribute, or modify this source,
 .\" provided that this copyright notice remains intact.
 .\"
 .\" calculator by David I. Bell
 .\" man page by Landon Noll
-.TH calc 1 "^..^" "15nov93"
+.TH calc 1 "^..^" "15Oct1999"
 .SH NAME
 calc \- arbitrary precision calculator
 .SH SYNOPSIS
 \fIcalc\fP
-[\fI\-h\fP]
+.RB [ \-c ]
-[\fI\-m mode\fP]
+.RB [ \-C ]
-[\fI\-p\fP]
+.RB [ \-d ]
-[\fI\-q\fP]
+.RB [ \-e ]
-[\fI\-u\fP]
+.RB [ \-h ]
-[\fI\-v\fP]
+.RB [ \-i ]
-[\fIcalc_cmd \&.\|.\|.\fp]
+.RB [ \-m\ \&mode ]
+.br
+.in +5n
+.RB [ \-n ]
+.RB [ \-p ]
+.RB [ \-q ]
+.RB [ \-u ]
+.RB [ \-v ]
+.RB [ calc_cmd\ \&.\|.\|. ]
+.in -5n
 .SH DESCRIPTION
 \&
 .br
 CALC COMMAND LINE
 .PP
+
 .TP
-\fI\-h\fP
+.B \-c
-Print a help message.
+Continue reading command lines even after an execution
-This option implies \fI \-q\fP.
+error has caused the abandonment of a line.
-This is equivalent to the calc command \fIhelp help\fP.
+.sp 1
-The help facility is disabled unless the \fImode\fP is 5 or 7.
+For example:
-See \fI\-m\fP below.
+.sp 1
-.sp
+.in +5n
-.TP
-\fI\-m mode\fP
-This flag sets the permission mode of calc.
-It controls the ability for \fIcalc\fP to open files
-and execute programs.
-\fIMode\fP may be a number from 0 to 7.
-.sp
-The \fImode\fP value is interpreted in a way similar
-to that of the \fRchmod(1)\fP octal mode:
-.sp
-.in +0.5i
 .nf
-0   do not open any file, do not execute progs
+calc read many_errors.cal
-1   do not open any file
-2   do not open files for reading, do not execute progs
-3   do not open files for reading
-4   do not open files for writing, do not execute progs
-5   do not open files for writing
-6   do not execute any program
-7   allow everything (default mode)
 .fi
-.in -0.5i
+.in -5n
-.sp
+.sp 1
-If one wished to run calc from a privledged user, one might
+will cause
-want to use \fI\-m 0\fP in an effort to make calc more secure.
+.B calc
-.sp
+to abort on the first error, whereas:
-\fIMode\fP bits for reading and writing apply only on an open.
+.sp 1
+.in +5n
+.nf
+calc -c read many_errors.cal
+.fi
+.in -5n
+.sp 1
+will
+cause
+.B calc
+to try to process each line being read
+despite the errors that it encounters.
+
+.TP
+.B \-C
+Permit the execution of custom builtin functions.  Without
+this flag, calling the custom() builtin function will
+simply generate an error.
+.sp 1
+Use if this flag may cause
+.B calc
+to execute functions that
+are non-standard and that are not portable.  Custom builtin
+functions are disabled by default for this reason.
+
+.TP
+.B \-d
+Disable the printing of the opening title.  The printing
+of library debug and informational messages is also disabled
+as if \fBconfig("lib_debug", 0)\fP had been executed.
+.sp 1
+For example:
+.sp 1
+.in +5n
+calc 'read qtime; qtime(2)'
+.in -5n
+.sp 1
+will output something like:
+.sp 1
+.in +5n
+.nf
+qtime(utc_hr_offset) defined
+It's nearly ten past six.
+.fi
+.in -5n
+.sp 1
+whereas:
+.sp 1
+.in +5n
+.nf
+calc -d 'read qtime; qtime(2)'
+.fi
+.in -5n
+.sp 1
+will just say:
+.sp 1
+.in +5n
+.nf
+It's nearly ten past six.
+.fi
+.in -5n
+.sp 1
+
+.TP
+.B \-e
+Ignore any environment variables on startup.
+The getenv() builtin will still return values, however.
+
+.TP
+.B \-h
+Print a help message.  This option implies
+.BR \-q .
+This
+is equivalent to the
+.B calc
+command help help.
+The help facility is disabled unless the mode is 5 or 7.
+See
+.BR \-m .
+
+.TP
+.B \-i
+Become interactive if possible.
+Be default, if
+.I calc_cmd
+args are given,
+.B calc
+will execute them and exit.
+This flag args are given,
+.B calc
+will execute them and exit.
+This flag will cause
+.B calc
+to drop into interactive mode after the
+commands are executed.
+.sp 1
+For example:
+.sp 1
+.in +5n
+.nf
+calc 2+5
+.fi
+.in -5n
+.sp 1
+will print the value 7 and exit whereas:
+.sp 1
+.in +5n
+.nf
+calc -i 2+5
+.fi
+.in -5n
+.sp 1
+will print the value 7 and prompt the user for more
+.B calc
+commands.
+
+.TP
+.BR \-m " mode"
+This flag sets the permission mode of
+.BR calc .
+It controls the ability for
+.B calc
+to open files and execute programs.
+Mode may be a number from 0 to 7.
+.sp 1
+The mode value is interpreted in a way similar to that
+of the
+.BR chmod (1)
+octal mode:
+.sp 1
+.in +5n
+.nf
+0  do not open any file, do not execute progs
+1  do not open any file
+2  do not open files for reading, do not execute progs
+3  do not open files for reading
+4  do not open files for writing, do not execute progs
+5  do not open files for writing
+6  do not execute any program
+7  allow everything (default mode)
+.fi
+.in -5n
+.sp 1
+If one wished to run
+.B calc
+from a privileged user, one might want to use
+.B \-m
+0 in an effort to make
+.B calc
+somewhat more secure.
+.sp 1
+Mode bits for reading and writing apply only on an
+open.
 Files already open are not effected.
-Thus if one wanted to use the \fI\-m 0\fP in an effort to make
+Thus if one wanted to use the
-\fIcalc\fP more secure, but still wanted to read and write a specific
+.B \-m
-file, one might want to do:
+0 in an effort to make
-.sp
+.B calc
-.in +0.5i
+somewhat more secure, but still wanted to read and write a specific
+file, one might want to do in
+.BR sh (1),
+.BR ksh (1),
+.BR bash (1)-like
+shells:
+.sp 1
+.in +5n
 .nf
-\fRcalc \-m 0 3<a.file\fP
+calc -m 0 3<a.file
 .fi
-.in -0.5i
+.in -5n
-.sp
+.sp 1
-Files presented to \fIcalc\fP in this way are opened in an unknown mode.
+Files presented to
-\fICalc\fP will attempt to read or write them if directed.
+.B calc
-.sp
+in this way are opened in an
-If the \fImode\fP disables opening of files for reading, then
+unknown mode.
-the startup library scripts are disabled as of \fI\-q\fP was given.
+.B Calc
-The reading of key bindings is also disabled when the \fImode\fP
+will attempt to read or write them if directed.
-disables opening of files for reading.
+.sp 1
+If the mode disables opening of files for reading, then
+the startup library scripts are disabled as of
+.B \-q
+was given.
+The reading of key bindings is also disabled
+when the mode disables opening of files for reading.
+
 .TP
-\fI \-p\fP
+.B \-n
-Pipe processing is enabled by use of \-p.  For example:
+Use the new configuration defaults instead of the old
-.sp
+default classic defaults.
-.in +0.5i
+This flag as the same effect
+as executing \fBconfig("all", "newcfg")\fP at startup time.
+
+.TP
+.B \-p
+Pipe processing is enabled by use of
+.BR \-p .
+For example:
+.sp 1
+.in +5n
 .nf
-\fRecho "print 2^21701\-1, 2^23209\-1" | calc \-p | fizzbin\fP
+calc -p '2^21701-1' | fizzbin
 .fi
-.in -0.5i
+.in -5n
-.sp
+.sp 1
-In pipe mode, \fIcalc\fP does not prompt, does not print leading tabs
+In pipe mode,
-and does not print the initial header.
+.B calc
+does not prompt, does not print leading
+tabs and does not print the initial header.
+The
+.B \-p
+flag overrides
+.BR \-i .
+
 .TP
-\fI \-q\fP
+.B \-q
-Disable the use of the \fI$CALCRC\fP startup scripts.
+Disable the use of the $CALCRC startup scripts.
+
 .TP
-\fI \-u\fP
+.B \-u
 Disable buffering of stdin and stdout.
+
 .TP
-\fI \-v\fP
+.B \-v
-Print the version and exit.
+Print the
+.B calc
+version number and exit.
 .PP
-Without \fIcalc_cmd\fPs, \fIcalc\fP operates interactively.
+Without
-If one or more \fIcalc_cmd\fPs are given on the command line,
+.IR calc_cmd ,
-\fIcalc\fP will execute them and exit.
+.B calc
-The printing of leading tabs on output is disabled
+operates interactively.
-as if \fIconfig("tab",0)\fP had been executed.
+If one or more
+.I calc_cmd
+are given on the command line,
+.B calc
+will execute them and exit.
+If
+.B \-i
+is given,
+.B calc
+will attempt to become interactive
+even of one or more
+.I calc_cmd
+are given on the command line.
 .PP
-Normally on startup, \fIcalc\fP attempts to execute a collection
+Normally on startup,
-of library scripts.
+.B calc
-The environment variable \fI$CALCRC\fP (if non-existent then
+attempts to execute a collection of
-a compiled in value) contains a \fI:\fP separated list of
+library scripts.
-startup library scripts.
+The environment variable $CALCRC (if non-existent
-No error conditions are produced if these startup library scripts
+then a compiled in value) contains a :  separated list of startup
-are not found.
+library scripts.
+No error conditions are produced if these startup
+library scripts are not found.
 .PP
-If the \fImode\fP disables opening of files for reading, then
+If the mode disables opening of files for reading, then the startup
-the startup library scripts are disabled as of \fI\-q\fP was given
+library scripts are disabled as of
-and \fI$CALCRC\fP as well as the default compiled in value are ignored.
+.B \-q
+was given and $CALCRC as well
+as the default compiled in value are ignored.
 .PP
 Filenames are subject to ``~'' expansion (see below).
-The environment variable \fI$CALCPATH\fP (if non-existent then
+The
-a compiled in value) contains a \fI:\fP separated list of search
+environment variable $CALCPATH (if non-existent then a compiled in
-directories.
+value) contains a : separated list of search directories.
-If a file does not begin with \fI/\fP, \fI~\fP or \fI./\fP,
+If a
-then it is searched for under each directory listed in the \fI$CALCPATH\fP.
+file does not begin with /, ~ or ./, then it is searched for under
-It is an error if no such readable file is found.
+each directory listed in the $CALCPATH.
+It is an error if no such
+readable file is found.
 .PP
-Calc treats all open files, other than stdin, stdout and stderr
+.B Calc
-as files available for reading and writing.
+treats all open files, other than stdin, stdout and
-One may present calc with an already open file in the following way:
+stderr as files available for reading and writing.
-.sp
+One may
-.in +0.5i
+present
+.B calc
+with an already open file using
+.BR sh (1),
+.BR ksh (1),
+.BR bash (1)-like
+shells is to:
+.sp 1
+.in +5n
+calc 3<open_file 4<open_file2
+.in -5n
+.sp 1
+For more information use the following
+.B calc
+commands:
+.sp 1
+.in +5n
 .nf
-\fRcalc 3<open_file 4<open_file2\fP
-.fi
-.in -0.5i
-.PP
-For more information use the following calc commands:
-.PP
-.in 1.0i
-help usage
-.br
 help help
-.br
+help overview
+help usage
 help environment
-.in -1.0i
+help config
-.PP
+.fi
-OVERVIEW
+.in -5n
-.PP
+.sp 1
-\fICalc\fP is arbitrary precision arithmetic system that uses
-a C-like language.
-\fICalc\fP is useful as a calculator, an algorithm prototyped
-and as a mathematical research tool.
-More importantly, \fIcalc\fP provides one with a machine
-independent means of computation.
-.PP
-\fICalc\fP comes with a rich set of builtin mathematical
-and programmatic functions.
-.PP
-\fICalc\fP is distributed with library of scripts.
-Written in the same C-like language, library scripts may be
-read in and executed during a \fIcalc\fP session.
-These library scripts are also provided because they are
-useful and to serve as examples of the \fIcalc\fP language.
-One may further extend \fIcalc\fP thru the
-use of user defined scripts.
-.PP
-Internally calc represents numeric values as fractions reduced to their
-lowest terms.
-The numerators and denominators of these factions may grow to
-arbitrarily large values.
-Numeric values read in are automatically converted into rationals.
-The user need not be aware of this internal representation.
-.PP
-For more information use the following calc commands:
-.PP
-.in 1.0i
-help intro
-.br
-help builtin
-.br
-help stdlib
-.br
-help define
-.br
-show builtins
-.br
-show functions
-.in -1.0i
 .PP
 DATA TYPES
 .PP
@@ -199,7 +365,9 @@ multiplication, division, negation, squaring, modulus,
 rounding, exponentiation, equality, comparison, printing
 and so on.
 .PP
-For more information use the following calc commands:
+For more information use the following
+.B calc
+commands:
 .PP
 .in 1.0i
 help types
@@ -220,7 +388,9 @@ procedure.
 Values may be grouped together in a matrix, or into a
 a list that permits stack and queue style operations.
 .PP
-For more information use the following calc commands:
+For more information use the following
+.B calc
+commands:
 .PP
 .in 1.0i
 help variable
@@ -256,7 +426,9 @@ For example:
 ~chongo/lib/fft_multiply.cal
 .in -1.0i
 .PP
-For more information use the following calc command:
+For more information use the following
+.B calc
+command:
 .PP
 .in 1.0i
 help file
@@ -275,7 +447,9 @@ These include commands such as function definition, help,
 reading in library scripts, dump files to a file, error notification,
 configuration control and status.
 .PP
-For more information use the following calc command:
+For more information use the following
+.B calc
+command:
 .PP
 .in 1.0i
 help command
@@ -295,7 +469,8 @@ help config
 .PD 0
 .TP 20
 ${LIBDIR}/*.cal
-library scripts shipped with calc
+library scripts shipped with
+.B calc
 .br
 .sp
 .TP 20
@@ -323,7 +498,9 @@ Default value: ${CALCPATH}
 .TP 5
 CALCRC
 On startup (unless \-h or \-q was given on the command
-line), calc searches for files along this :-separated
+line),
+.B calc
+searches for files along this :-separated
 environment variable.
 .br
 .sp
@@ -333,7 +510,9 @@ Default value: ${CALCRC}
 .TP 5
 CALCBINDINGS
 On startup (unless \fI\-h\fP or \fI\-q\fP was given on the command
-line, or \fI\-m\fP disallows opening files for reading), calc reads
+line, or \fI\-m\fP disallows opening files for reading),
+.B calc
+reads
 key bindings from the filename specified
 by this environment variable.
 .br
@@ -343,9 +522,12 @@ Default value: ${CALCBINDINGS}
 .SH CREDIT
 \&
 .br
-The majority of calc was written by David I. Bell.
+The majority of
+.B calc
+was written by David I. Bell.
 .sp
-Calc archives and calc-tester mailing list maintained by Landon Curt Noll.
+.B Calc
+archives and calc-tester mailing list maintained by Landon Curt Noll.
 .sp
 Thanks for suggestions and encouragement from Peter Miller,
 Neil Justusson, and Landon Noll.
@@ -378,30 +560,27 @@ Copyright (c) 19xx Ernest Bowen and Landon Curt Noll
 Permission is granted to use, distribute, or modify this source,
 provided that this copyright notice remains intact.
 .sp
-Send calc comments, suggestions, bug fixes, enhancements
+Send comments, suggestions, bug fixes, enhancements
-and interesting calc scripts that you would like you see included
+and interesting
+.B calc
+scripts that you would like you see included
 in future distributions to:
 .sp
 .in +0.5i
-dbell@auug.org.au
+calc-tester@postofc.corp.sgi.com
-.br
-chongo@toad.com
 .in -0.5i
 .sp
-Landon Noll maintains the official calc ftp archive at:
+Landon Noll maintains the the
+.B calc
+web site is located at:
 .sp
 .in +0.5i
-ftp://ftp.uu.net/pub/calc
+http://reality.sgi.com/chongo/tech/comp/calc
 .in -0.5i
 .sp
-Alpha test versions, complete with bugs, untested code and
+One may join the
-experimental features may be fetched (if you are brave) under:
+.B calc
-.sp
+testing group by sending a request to:
-.in +0.5i
-http://reality.sgi.com/chongo/calc/
-.in -0.5i
-.sp
-One may join the calc testing group by sending a request to:
 .sp
 .in +0.5i
 calc-tester-request@postofc.corp.sgi.com
@@ -410,14 +589,14 @@ calc-tester-request@postofc.corp.sgi.com
 Your message body (not the subject) should consist of:
 .sp
 .in +0.5i
+.nf
 subscribe calc-tester address
-.br
 end
-.br
 name your_full_name
+.fi
+.in -0.5i
 .sp
 where "address" is your EMail address and "your_full_name"
 is your full name.
-.in -0.5i
 .sp
-Enjoy!
+Share and Enjoy! :\-)

codegen.c

@@ -125,6 +125,7 @@ getcommands(BOOL toplevel)
 			switch (opensearchfile(name,calcpath,CALCEXT,rdonce)) {
 			case 0:
 				getcommands(FALSE);
+				closeinput();
 				break;
 			case 1:
 				/* previously read and -once was given */
@@ -354,10 +355,6 @@ getsimplebody(void)
 	(void) tokenmode(TM_NEWLINES);
 	(void) getexprlist();
 	addop(OP_RETURN);
-	if (gettoken() != T_SEMICOLON)
-		rescantoken();
-	if (gettoken() != T_NEWLINE)
-		scanerror(T_NULL, "Illegal function definition");
 }
 
 

config.h

@@ -28,12 +28,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 

custom.c

@@ -24,12 +24,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 /* these include files are needed regardless of CUSTOM */

custom.h

@@ -28,15 +28,12 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
-
 /*
  * Be careful what you put in this file, upper .c files include
  * this file even when CUSTOM is not defined (ALLOW_CUSTOM is empty).

custom/CUSTOM_CAL

@@ -19,7 +19,7 @@
 # OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 # PERFORMANCE OF THIS SOFTWARE.
 #
-# chongo was here	/\../\		chongo@toad.com
+# chongo was here	/\../\		http://reality.sgi.com/chongo
 
 The following custom calc library files are provided because they serve
 as examples of how use the custom interface.  The custom interface

custom/Makefile

@@ -26,12 +26,10 @@
 #
 # Happy bit twiddling,
 #
-#			Landon Curt Noll
+#      Landon Curt Noll
+#      http://reality.sgi.com/chongo
 #
-#			chongo@toad.com
+# chongo <was here> /\../\
-#			...!{pyramid,sun,uunet}!hoptoad!chongo
-#
-# chongo was here	/\../\
 
 ##############################################################################
 #-=-=-=-=-=-=-=-=- You may want to change some values below -=-=-=-=-=-=-=-=-#

custom/argv.cal

@@ -10,7 +10,7 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here	/\../\		chongo@toad.com
+ * chongo was here	/\../\		http://reality.sgi.com/chongo
  */
 /*
  * argv - print information about various args

custom/c_argv.c

@@ -15,12 +15,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 #if defined(CUSTOM)

custom/c_devnull.c

@@ -15,12 +15,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 #if defined(CUSTOM)

custom/c_help.c

@@ -15,12 +15,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 #if defined(CUSTOM)

custom/c_sysinfo.c

@@ -15,12 +15,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 #if defined(CUSTOM)

custom/custtbl.c

@@ -24,12 +24,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 

custom/halflen.cal

@@ -10,7 +10,7 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here	/\../\		chongo@toad.com
+ * chongo was here	/\../\		http://reality.sgi.com/chongo
  */
 /*
  * halflen - determine the length of numeric value in HALFs

func.c

@@ -72,6 +72,7 @@ static int strscan(char *s, int count, VALUE **vals);
 static int filescan(FILEID id, int count, VALUE **vals);
 static VALUE f_eval(VALUE *vp);
 static VALUE f_fsize(VALUE *vp);
+static int malloced_putenv(char *str);
 
 
 
@@ -87,6 +88,19 @@ extern int idungetc(FILEID id, int ch);
 extern int stoponerror;
 
 
+/*
+ * malloced environment storage
+ */
+#define ENV_POOL_CHUNK 10	/* env_pool elements to allocate at a time */
+struct env_pool {
+    char *getenv;	/* what getenv() would return, NULL => unused */
+    char *putenv;	/* pointer given to putenv() */
+};
+static int env_pool_cnt = 0;	/* number of env_pool elements in use */
+static int env_pool_max = 0;	/* number of env_pool elements allocated */
+static struct env_pool *e_pool = NULL;	/* env_pool elements */
+
+
 /*
  * if HZ & CLK_TCK are not defined, pick typical values, hope for the best
  */
@@ -139,12 +153,14 @@ f_eval(VALUE *vp)
 	FUNC	*oldfunc;
 	FUNC	*newfunc;
 	VALUE	result;
-	char	*cp;
+	char	*str;
+	long	num;
 
 	if (vp->v_type != V_STR)
 		return error_value(E_EVAL2);
-	cp = vp->v_str->s_str;
+	str = vp->v_str->s_str;
-	switch (openstring(cp)) {
+	num = vp->v_str->s_len;
+	switch (openstring(str, num)) {
 		case -2:
 			return error_value(E_EVAL3);
 		case -1:
@@ -153,6 +169,7 @@ f_eval(VALUE *vp)
 	oldfunc = curfunc;
 	enterfilescope();
 	if (evaluate(TRUE)) {
+		closeinput();
 		exitfilescope();
 		freevalue(stack--);
 		newfunc = curfunc;
@@ -164,6 +181,7 @@ f_eval(VALUE *vp)
 			free(newfunc);
 		return result;
 	}
+	closeinput();
 	exitfilescope();
 	newfunc = curfunc;
 	curfunc = oldfunc;
@@ -5875,6 +5893,17 @@ f_isatty(VALUE *vp)
 }
 
 
+static VALUE
+f_inputlevel (void)
+{
+	VALUE result;
+
+	result.v_type = V_NUM;
+	result.v_num = itoq((long) inputlevel());
+	return result;
+}
+
+
 static VALUE
 f_access(int count, VALUE **vals)
 {
@@ -5977,8 +6006,7 @@ f_putenv(int count, VALUE **vals)
 
 	/* return putenv result */
 	result.v_type = V_NUM;
-	result.v_num = itoq((long) putenv(putenv_str));
+	result.v_num = itoq((long) malloced_putenv(putenv_str));
-	free(putenv_str);
 	return result;
 }
 
@@ -6960,6 +6988,8 @@ static CONST struct builtin builtins[] = {
 	 "integral log of a number base 2"},
 	{"im", 1, 1, 0, OP_IM, 0, 0,
 	 "imaginary part of complex number"},
+	{"inputlevel", 0, 0, 0, OP_NOP, 0, f_inputlevel,
+	 "current input depth"},
 	{"insert", 2, IN, FA, OP_NOP, 0, f_listinsert,
 	 "insert values c ... into list a at position b"},
 	{"int", 1, 1, 0, OP_INT, qint, 0,
@@ -7522,4 +7552,145 @@ showerrors(void)
 }
 
 
+/*
+ * malloced_putenv - Keep track of malloced environment variable storage
+ *
+ * given:
+ *	str	a malloced string which will be given to putenv
+ *
+ * returns:
+ *	putenv() return value
+ *
+ * NOTE: The caller MUST pass a string that the caller has previously malloced.
+ */
+static int
+malloced_putenv(char *str)
+{
+	char *value;	/* location of the value part of the str argument */
+	char *old_val;	/* previously stored (or inherited) env value */
+	int found_cnt;	/* number of active env_pool entries found */
+	struct env_pool *new;	/* new e_pool */
+	int i;
+
+	/*
+	 * firewall
+	 */
+	if (str == NULL) {
+		math_error("malloced_putenv given a NULL pointer!!");
+		/*NOTREACHED*/
+	}
+	if (str[0] == '=') {
+		math_error("malloced_putenv = is first character in string!!");
+		/*NOTREACHED*/
+	}
+
+	/*
+	 * determine the place where getenv would return
+	 */
+	value = strchr(str, '=');
+	if (value == NULL) {
+		math_error("malloced_putenv = not found in string!!");
+		/*NOTREACHED*/
+	}
+	++value;
+
+	/*
+	 * lookup for an existing environment value
+	 */
+	*(value-1) = '\0';
+	old_val = getenv(str);
+	*(value-1) = '=';
+
+	/*
+	 * If we have the value in our environment, look for a
+	 * previously malloced string and free it
+	 */
+	if (old_val != NULL && env_pool_cnt > 0) {
+		for (i=0, found_cnt=0;
+		     i < env_pool_max && found_cnt < env_pool_cnt;
+		     ++i) {
+
+			/* skip an unused entry */
+			if (e_pool[i].getenv == NULL) {
+			    continue;
+			}
+			++found_cnt;
+
+			/* look for the 1st match */
+			if (e_pool[i].getenv == value) {
+
+				/* found match, free the storage */
+				if (e_pool[i].putenv != NULL) {
+					free(e_pool[i].putenv);
+				}
+				e_pool[i].getenv = NULL;
+				--env_pool_cnt;
+				break;
+			}
+		}
+	}
+
+	/*
+	 * ensure that we have room in the e_pool
+	 */
+	if (env_pool_max == 0) {
+
+		/* allocate an initial pool (with one extra guard value) */
+		new = (struct env_pool *)malloc((ENV_POOL_CHUNK+1) *
+						sizeof(struct env_pool));
+		if (new == NULL) {
+			math_error("malloced_putenv malloc failed");
+			/*NOTREACHED*/
+		}
+		e_pool = new;
+		env_pool_max = ENV_POOL_CHUNK;
+		for (i=0; i <= ENV_POOL_CHUNK; ++i) {
+			e_pool[i].getenv = NULL;
+		}
+
+	} else if (env_pool_cnt >= env_pool_max) {
+
+		/* expand the current pool (with one extra guard value) */
+		new = (struct env_pool *)realloc(e_pool,
+					     (env_pool_max+ENV_POOL_CHUNK+1) *
+					     sizeof(struct env_pool));
+		if (new == NULL) {
+			math_error("malloced_putenv realloc failed");
+			/*NOTREACHED*/
+		}
+		e_pool = new;
+		for (i=env_pool_max; i <= env_pool_max + ENV_POOL_CHUNK; ++i) {
+			e_pool[i].getenv = NULL;
+		}
+		env_pool_max += ENV_POOL_CHUNK;
+	}
+
+	/*
+	 * store our data into the first e_pool entry
+	 */
+	for (i=0; i < env_pool_max; ++i) {
+
+		/* skip used entries */
+		if (e_pool[i].getenv != NULL) {
+			continue;
+		}
+
+		/* store in this free entry and stop looping */
+		e_pool[i].getenv = value;
+		e_pool[i].putenv = str;
+		++env_pool_cnt;
+		break;
+	}
+	if (i >= env_pool_max) {
+		math_error("malloced_putenv missed unused entry!!");
+		/*NOTREACHED*/
+	}
+
+	/*
+	 * finally, do the putenv action
+	 */
+	return putenv(str);
+}
+
+
 #endif /* FUNCLIST */

help/Makefile

@@ -74,7 +74,7 @@ STD_HELP_FILES_12= archive
 
 BLT_HELP_FILES_13= bugs changes
 
-STD_HELP_FILES_14= contrib credit todo
+STD_HELP_FILES_14= contrib credit wishlist todo
 
 # These files are used in the following order to construct full
 #

help/archive

@@ -7,7 +7,7 @@ Where to get the the latest versions of calc
     Alpha test versions, complete with bugs, untested code and
     experimental features may be fetched (if you are brave) under:
 
-	http://reality.sgi.com/chongo/calc/
+	http://reality.sgi.com/chongo/tech/comp/calc/
 
     One may join the calc testing group by sending a request to:
 
@@ -22,10 +22,7 @@ Where to get the the latest versions of calc
     where "address" is your EMail address and "your_full_name"
     is your full name.
 
-    See:
+Landon Curt Noll
+http://reality.sgi.com/chongo
 
-	http://prime.corp.sgi.com/csp/ioccc/noll/noll.html#calc
+chongo <was here> /\../\
-
-    for details.
-
-Landon Curt Noll <chongo@toad.com> /\oo/\

help/contrib

@@ -8,7 +8,7 @@ We welcome and encourage you to send us:
 Prior to doing so, you should consider trying your changes on the most
 recent alpha test code.  To obtain the most recent code, look under
 
-	http://reality.sgi.com/chongo/calc/
+	http://reality.sgi.com/chongo/tech/comp/calc/
 
 You should also consider joining the calc testing group by sending a
 request to:
@@ -45,4 +45,7 @@ Thanks for considering submitting code to calc.  Calc is a collective
 work by a number of people.  It would not be what it is today without
 your efforts and submissions!
 
-Landon Curt Noll <chongo@toad.com> /\oo/\
+Landon Curt Noll
+http://reality.sgi.com/chongo
+
+chongo <was here> /\../\

help/credit

@@ -34,17 +34,17 @@ Credits
     interesting calc scripts that you would like you see included in
     future distributions to:
 
-	    dbell@auug.org.au
+	calc-tester@postofc.corp.sgi.com
-	    chongo@toad.com
 
-    Landon Noll maintains the official calc ftp archive at:
+    Landon Noll maintains the official calc http/ftp archive at:
 
-	ftp://ftp.uu.net/pub/calc
+	ftp://reality.sgi.com/users/chongo/src/calc
+	http://reality.sgi.com/chongo/src/calc/
 
     Alpha test versions, complete with bugs, untested code and
     experimental features may be fetched (if you are brave) under:
 
-	http://reality.sgi.com/chongo/calc/
+	http://reality.sgi.com/chongo/tech/comp/calc/
 
     One may join the calc testing group by sending a request to:
 

help/help

@@ -42,7 +42,8 @@ following topics:
     changes		recent changes to calc
     contrib		how to contribute scripts, code or custom functions
     credit		who wrote calc and who helped
-    todo		needed enhancements and wish list
+    todo		list of priority action items for calc
+    wishlist		wish list of future enhancements of calc
 
     full		all of the above (in the above order)
 

help/todo

@@ -1,183 +1,71 @@
-Needed enhancements
+Calc Todo Items:
 
-    Send calc comments, suggestions, bug fixes, enhancements and
+    The following items should be addressed sometime in the short to
-    interesting calc scripts that you would like you see included in
+    medium term future, if not before the next release.
-    future distributions to:
 
-	    dbell@auug.org.au
+    Code contributions are welcome.  Send patches to:
-	    chongo@toad.com
 
-    The following items are in the calc wish list.  Programs like this
+	    calc-tester@postofc.corp.sgi.com
-    can be extended and improved forever.
 
-    *  In general use faster algorithms for large numbers when they
+    See also the 'wishlist' help files for the calc enhancement wish list.
-       become known.  In particular, look at better algorithms for
-       very large numbers -- multiply, square and mod in particular.
 
-    *  Implement an autoload feature.  Associate a calc library filename
+=-=
-       with a function or global variable.  On the first reference of
-       such item, perform an automatic load of that file.
 
-    *  Add error handling statements, so that QUITs, errors from the
+Very High priority items:
-       'eval' function, division by zeroes, and so on can be caught.
-       This should be done using syntax similar to:
 
-		ONERROR statement DO statement;
+    * Write the help file for the inputlevel() builtin function.
 
-       Something like signal isn't versatile enough.
+    * Write the help file for the display() builtin function.
 
-    *  Add a debugging capability so that functions can be single stepped,
+    * Write the help file for the stoponerror() builtin function.
-       breakpoints inserted, variables displayed, and so on.
 
-    *  Figure out how to write all variables out to a file, including
+    * Update the errmax about the meaning of errmax(-1).
-       deeply nested arrays, lists, and objects.
 
-       Add the ability to read and write a value in some binary form.
+    * Document the new meanings for bit values and the sign of
-       Clearly this is easy for non-neg integers.  The question of
+      of config("lib_debug") in the appropriate help file(s).
-       everything else is worth pondering.
 
-    *  Eliminate the need for the define keyword by doing smarter parsing.
+    * Fix any 'Known bugs' as noted in the BUGS file or as
+      displayed by 'calc help bugs'.
 
-    *  Allow results of a command (or all commands) to be re-directed to a
+=-=
-       file or piped into a command.
 
-    *  Add some kind of #include and #define facility.  Perhaps use
+High priority items:
-       the C pre-processor itself?
 
-    *  Support a more general input and output base mode other than
+    * Verify, complete or fix the 'SEE ALSO' help file sections.
-       just dec, hex or octal.
 
-    *  Implement a form of symbolic algebra.  Work on this has already
+    * Verify, complete or fix the 'LIBRARY' help file sections.
-       begun.  This will use backquotes to define expressions, and new
-       functions will be able to act on expressions.  For example:
 
-	    x = `hello * strlen(mom)`;
+    * Verify, complete or fix the 'LIMITS' help file sections.
-	    x = sub(x, `hello`, `hello + 1`);
-	    x = sub(x, `hello`, 10, `mom`, "curds");
-	    eval(x);
 
-       prints 55.
+    * Verify, complete or fix the 'SYNOPSIS' and 'TYPES' help file sections.
 
-    *  Place the results of previous commands into a parallel history list.
+    * Where reasonable, be sure that regress.cal tests builtin functions.
-       Add a binding that returns the saved result of the command so
-       that one does not need to re-execute a previous command simply
-       to obtain its value.
 
-       If you have a command that takes a very long time to execute,
+    * Perform a code coverage analysis of the 'make check' action
-       it would be nice if you could get at its result without having
+      and improve the coverage (within reason) of the regress.cal suite.
-       to spend the time to reexecute it.
 
-    *  Add a binding to delete a value from the history list.
+    * Create a Linux rpm (Red Hat Package Manager) package for calc.
 
-       One may need to remove a large value from the history list if
+    * Address, if possible and reasonable, any Calc Mis-features
-       it is very large.  Deleting the value would replace the history
+      as noted in the BUGS file or as displayed by 'calc help bugs'.
-       entry with a null value.
 
-    *  Add a binding to delete a command from the history list.
+    * The shell script that is currently constructed to display a help
+      file (in help.c) is a gross hack.  That code should be replaced
+      with code that looks for the help file in the pre-defined help
+      directories.  When the specific help file is found and opened,
+      then a $PAGER should be forked and execed after doing things such
+      as closing open file descriptors that the $PAGER does not need.
 
-       Since you can delete values, you might as well be able to
+    * Inspect changes made since the last major calc release (the
-       delete commands.
+      initial x.y.z version ... prior to any t sub-version) to help
+      ensure that they have not introduced new or re-introduced old bugs
+      into calc.
 
-    *  All one to alter the size of the history list thru config().
+=-=
 
-       In some cases, 256 values is too small, in others it is too large.
+Medium priority items:
 
-    *  Add a builtin that returns a value from the history list.
+    * Complete the use of CONST where appropriate:
-       As an example:
-
-	    histval(-10)
-
-       returns the 10th value on the history value list, if such
-       a value is in the history list (null otherwise).  And:
-
-	    histval(23)
-
-       return the value of the 23rd command given to calc, if
-       such a value is in the history list (null otherwise).
-
-       It would be very helpful to use the history values in
-       subsequent equations.
-
-    *  Add a builtin that returns command as a string from the
-       history list.  As an example:
-
-	    history(-10)
-
-       returns a string containing the 10th command on the
-       history list, if a such a value is in the history list
-       (empty string otherwise).  And:
-
-	    history(23)
-
-       return the string containing the 23rd command given to calc, if
-       such a value is in the history list (empty string otherwise).
-
-       One could use the eval() function to re-evaluate the command.
-
-    *  Allow one to optionally restore the command number to calc
-       prompts.  When going back in the history list, indicate the
-       command number that is being examined.
-
-       The command number was a useful item.  When one is scanning the
-       history list, knowing where you are is hard without it.  It can
-       get confusing when the history list wraps or when you use
-       search bindings.  Command numbers would be useful in
-       conjunction with positive args for the history() and histval()
-       functions as suggested above.
-
-    *  Add a builtin that returns the current command number.
-       For example:
-
-	    cmdnum()
-
-       returns the current command number.
-
-       This would allow one to tag a value in the history list.  One
-       could save the result of cmdnum() in a variable and later use
-       it as an arg to the histval() or history() functions.
-
-    *  Add a factoring builtin functions.  Provide functions that perform
-       multiple polynomial quadratic sieves, elliptic curve, difference
-       of two squares, N-1 factoring as so on.  Provide a easy general
-       factoring builtin (say factor(foo)) that would attempt to apply
-       whatever process was needed based on the value.
-
-       Factoring builtins would return a matrix of factors.
-
-       It would be handy to configure, via config(), the maximum time
-       that one should try to factor a number.  By default the time
-       should be infinite.  If one set the time limit to a finite
-       value and the time limit was exceeded, the factoring builtin
-       would return whatever if had found thus far, even if no new
-       factors had been found.
-
-       Another factoring configuration interface, via config(), that
-       is needed would be to direct the factoring builtins to return
-       as soon as a factor was found.
-
-    *  Allow one to config calc break up long output lines.
-
-       The command:  calc '2^100000'  will produce one very long
-       line.  Many times this is reasonable.  Long output lines
-       are a problem for some utilities.  It would be nice if one
-       could configure, via config(), calc to fold long lines.
-
-       By default, calc should continue to produce long lines.
-
-       One option to config should be to specify the length to
-       fold output.  Another option should be to append a trailing
-       \ on folded lines (as some symbolic packages use).
-
-    *  Allow one to use the READ and WRITE commands inside a function.
-
-    *  Remove or increase limits on factor(), lfactor(), isprime(),
-       nextprime(), and prevprime().  Currently these functions cannot
-       search for factors > 2^32.
-
-    *  Add read -once -try "filename" which would do nothing
-       if "filename" was not a readable file.
-
-    *  Complete the use of CONST where appropirate:
 
 	CONST is beginning to be used with read-only tables and some
 	function arguments.  This allows certain compilers to better
@@ -196,48 +84,10 @@ Needed enhancements
 	at by 'fizbin' and the HALF array pointer at by 'data' should be
 	treated as read-only.
 
-    * 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
-
     * It is overkill to have nearly everything wind up in libcalc.a.
 
-      One should make available a the fundimental math operations
+      One should make available a the fundamental math operations
       on ZVALUE, NUMBER and perhaps COMPLEX (without all of the
       other stuff) in a separate library.
 
-    * improve the coverage in the 'SEE ALSO' help file lists
+    * Clean the source code and document it better.
-
-    * where reasonable, be sure that regress.cal tests builtin functions
-
-    * clean the source code and document it better

help/usage

@@ -2,7 +2,22 @@ Calc command line
 
     Calc has the following command line:
 
-	calc [-C] [-e] [-h] [-i] [-m mode] [-n] [-p] [-q] [-u] [calc_cmd ...]
+	calc [-c] [-C] [-d] [-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.
+
+	    For example:
+
+		calc read many_errors.cal
+
+	    will cause calc to abort on the first error, whereas:
+
+		calc -c read many_errors.cal
+
+	    will cause calc to try to process each line being read
+	    despite the errors that it encounters.
 
 	-C  Permit the execution of custom builtin functions.  Without
 	    this flag, calling the custom() builtin function will
@@ -12,6 +27,27 @@ Calc command line
 	    are non-standard and that are not portable.  Custom builtin
 	    functions are disabled by default for this reason.
 
+	-d  Disable the printing of the opening title.  The printing
+	    of library debug and informational messages is also disabled
+	    as if config("lib_debug",0) had been executed.
+
+	    For example:
+
+		calc 'read qtime; qtime(2)'
+
+	    will output something like:
+
+		qtime(utc_hr_offset) defined
+		It's nearly ten past six.
+
+	    whereas:
+
+		calc -d 'read qtime; qtime(2)'
+
+	    will just say:
+
+		It's nearly ten past six.
+
 	-e  Ignore any environment variables on startup.  The
 	    getenv() builtin will still return values, however.
 
@@ -19,7 +55,21 @@ Calc command line
 	    is equivalent to the calc command help help.  The help
 	    facility is disabled unless the mode is 5 or 7.  See -m.
 
-	-i  Do not about if the error count exceeds maxerr().
+	-i  Become interactive if possible.  Be default, if calc_cmd
+	    args are given, calc will execute them and exit.  This flag
+	    will cause calc to drop into interactive mode after the
+	    commands are executed.
+
+	    For example:
+
+		calc 2+5
+
+	    will print the value 7 and exit whereas:
+
+		calc -i 2+5
+
+	    will print the value 7 and prompt the user for more
+	    calc commands.
 
 	-m mode
 	   This flag sets the permission mode of calc.  It
@@ -38,7 +88,7 @@ Calc command line
 		6  do not execute any program
 		7  allow everything (default mode)
 
-	   If one wished to run calc from a privledged user, one
+	   If one wished to run calc from a privileged user, one
 	   might want to use -m 0 in an effort to make calc more
 	   secure.
 
@@ -46,7 +96,7 @@ Calc command line
 	   open.  Files already open are not effected. Thus if one
 	   wanted to use the -m 0 in an effort to make calc more
 	   secure, but still wanted to read and write a specific
-	   file, one might want to do:
+	   file, one might want to do in sh, ksh, bash-like shells:
 
 		     calc -m 0 3<a.file
 
@@ -59,25 +109,28 @@ Calc command line
 	   given.  The reading of key bindings is also disabled
 	   when the mode disables opening of files for reading.
 
-	-n  Use the new configutation defaults instead of the old
+	-n  Use the new configuration defaults instead of the old
 	    default classic defaults.  This flag as the same effect
 	    as executing config("all", "newcfg") at startup time.
 
 	-p  Pipe processing is enabled by use of -p.  For example:
 
-		     echo "print 2^21701-1, 2^23209-1" | calc -p | fizzbin
+		     calc -p '2^21701-1' | fizzbin
 
-	    In pipe mode, calc does not prompt, does not print
+	    In pipe mode, calc does not prompt, does not print leading
-	    leading tabs and does not print the initial header.
+	    tabs and does not print the initial header.  The -p flag
+	    overrides -i.
 
 	-q  Disable the use of the $CALCRC startup scripts.
 
 	-u  Disable buffering of stdin and stdout.
 
+	-v  Print calc version number and exit.
+
     Without `calc_cmd', calc operates interactively.  If one or more
     `calc_cmd' are given on the command line, calc will execute them and
-    exit.  The printing of leading tabs on output is disabled as if
+    exit.  If -i is given, calc will attempt to become interactive
-    config("tab",0) had been executed.
+    even of one or more `calc_cmd' are given on the command line.
 
     Normally on startup, calc attempts to execute a collection of
     library scripts.  The environment variable $CALCRC (if non-existent
@@ -98,7 +151,8 @@ Calc command line
 
     Calc treats all open files, other than stdin, stdout and
     stderr as files available for reading and writing. One may
-    present calc with an already open file in the following way:
+    present calc with an already open file using sh, ksh or bash-like
+    shells is to:
 
         calc 3<open_file 4<open_file2
 

help/wishlist

@@ -0,0 +1,215 @@
+Calc Enhancement Wish List:
+
+    Send calc comments, suggestions, bug fixes, enhancements and
+    interesting calc scripts that you would like you see included in
+    future distributions to:
+
+		calc-tester@postofc.corp.sgi.com
+
+    The following items are in the calc wish list.  Programs like this
+    can be extended and improved forever.
+
+    See the 'todo' help file for higher priority todo items.
+
+=-=
+
+    *  In general use faster algorithms for large numbers when they
+       become known.  In particular, look at better algorithms for
+       very large numbers -- multiply, square and mod in particular.
+
+    *  Implement an autoload feature.  Associate a calc library filename
+       with a function or global variable.  On the first reference of
+       such item, perform an automatic load of that file.
+
+    *  Add error handling statements, so that QUITs, errors from the
+       'eval' function, division by zeroes, and so on can be caught.
+       This should be done using syntax similar to:
+
+		ONERROR statement DO statement;
+
+       Something like signal isn't versatile enough.
+
+    *  Add a debugging capability so that functions can be single stepped,
+       breakpoints inserted, variables displayed, and so on.
+
+    *  Figure out how to write all variables out to a file, including
+       deeply nested arrays, lists, and objects.
+
+       Add the ability to read and write a value in some binary form.
+       Clearly this is easy for non-neg integers.  The question of
+       everything else is worth pondering.
+
+    *  Eliminate the need for the define keyword by doing smarter parsing.
+
+    *  Allow results of a command (or all commands) to be re-directed to a
+       file or piped into a command.
+
+    *  Add some kind of #include and #define facility.  Perhaps use
+       the C pre-processor itself?
+
+    *  Support a more general input and output base mode other than
+       just dec, hex or octal.
+
+    *  Implement a form of symbolic algebra.  Work on this has already
+       begun.  This will use backquotes to define expressions, and new
+       functions will be able to act on expressions.  For example:
+
+	    x = `hello * strlen(mom)`;
+	    x = sub(x, `hello`, `hello + 1`);
+	    x = sub(x, `hello`, 10, `mom`, "curds");
+	    eval(x);
+
+       prints 55.
+
+    *  Place the results of previous commands into a parallel history list.
+       Add a binding that returns the saved result of the command so
+       that one does not need to re-execute a previous command simply
+       to obtain its value.
+
+       If you have a command that takes a very long time to execute,
+       it would be nice if you could get at its result without having
+       to spend the time to reexecute it.
+
+    *  Add a binding to delete a value from the history list.
+
+       One may need to remove a large value from the history list if
+       it is very large.  Deleting the value would replace the history
+       entry with a null value.
+
+    *  Add a binding to delete a command from the history list.
+
+       Since you can delete values, you might as well be able to
+       delete commands.
+
+    *  All one to alter the size of the history list thru config().
+
+       In some cases, 256 values is too small, in others it is too large.
+
+    *  Add a builtin that returns a value from the history list.
+       As an example:
+
+	    histval(-10)
+
+       returns the 10th value on the history value list, if such
+       a value is in the history list (null otherwise).  And:
+
+	    histval(23)
+
+       return the value of the 23rd command given to calc, if
+       such a value is in the history list (null otherwise).
+
+       It would be very helpful to use the history values in
+       subsequent equations.
+
+    *  Add a builtin that returns command as a string from the
+       history list.  As an example:
+
+	    history(-10)
+
+       returns a string containing the 10th command on the
+       history list, if a such a value is in the history list
+       (empty string otherwise).  And:
+
+	    history(23)
+
+       return the string containing the 23rd command given to calc, if
+       such a value is in the history list (empty string otherwise).
+
+       One could use the eval() function to re-evaluate the command.
+
+    *  Allow one to optionally restore the command number to calc
+       prompts.  When going back in the history list, indicate the
+       command number that is being examined.
+
+       The command number was a useful item.  When one is scanning the
+       history list, knowing where you are is hard without it.  It can
+       get confusing when the history list wraps or when you use
+       search bindings.  Command numbers would be useful in
+       conjunction with positive args for the history() and histval()
+       functions as suggested above.
+
+    *  Add a builtin that returns the current command number.
+       For example:
+
+	    cmdnum()
+
+       returns the current command number.
+
+       This would allow one to tag a value in the history list.  One
+       could save the result of cmdnum() in a variable and later use
+       it as an arg to the histval() or history() functions.
+
+    *  Add a factoring builtin functions.  Provide functions that perform
+       multiple polynomial quadratic sieves, elliptic curve, difference
+       of two squares, N-1 factoring as so on.  Provide a easy general
+       factoring builtin (say factor(foo)) that would attempt to apply
+       whatever process was needed based on the value.
+
+       Factoring builtins would return a matrix of factors.
+
+       It would be handy to configure, via config(), the maximum time
+       that one should try to factor a number.  By default the time
+       should be infinite.  If one set the time limit to a finite
+       value and the time limit was exceeded, the factoring builtin
+       would return whatever if had found thus far, even if no new
+       factors had been found.
+
+       Another factoring configuration interface, via config(), that
+       is needed would be to direct the factoring builtins to return
+       as soon as a factor was found.
+
+    *  Allow one to config calc break up long output lines.
+
+       The command:  calc '2^100000'  will produce one very long
+       line.  Many times this is reasonable.  Long output lines
+       are a problem for some utilities.  It would be nice if one
+       could configure, via config(), calc to fold long lines.
+
+       By default, calc should continue to produce long lines.
+
+       One option to config should be to specify the length to
+       fold output.  Another option should be to append a trailing
+       \ on folded lines (as some symbolic packages use).
+
+    *  Allow one to use the READ and WRITE commands inside a function.
+
+    *  Remove or increase limits on factor(), lfactor(), isprime(),
+       nextprime(), and prevprime().  Currently these functions cannot
+       search for factors > 2^32.
+
+    *  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

input.c

@@ -33,8 +33,9 @@ typedef struct {
 	int i_state;		/* state (read, reread) */
 	int i_char;		/* currently read char */
 	long i_line;		/* line number */
-	char *i_str;		/* current string for input (if not NULL) */
+	char *i_cp;		/* pointer to string character to be read */
-	char *i_origstr;	/* original string so it can be freed */
+	char *i_str;		/* start of string copy to be read, or NULL */
+	long i_num;		/* number of string characters remaining */
 	char *i_ttystr;		/* current character of tty line (or NULL) */
 	FILE *i_fp;		/* current file for input (if not NULL) */
 	char *i_name;		/* file name if known */
@@ -311,7 +312,7 @@ f_open(char *name, char *mode)
 	 */
 	if (!allow_read && !allow_write) {
 		/* no reads and no writes means no opens! */
-		if (start_done) {
+		if (run_state > RUN_BEGIN) {
 			fprintf(stderr,
 				"open of %s mode %s - %s\n", name, mode,
 				"open for read or write disallowed by -m\n");
@@ -319,7 +320,7 @@ f_open(char *name, char *mode)
 		return NULL;
 	} else if (!allow_read && strchr(mode, 'r') != NULL) {
 		/* reading new files disallowed */
-		if (start_done) {
+		if (run_state > RUN_BEGIN) {
 			fprintf(stderr,
 				"open of %s mode %s - %s\n", name, mode,
 				"open for read disallowed by -m\n");
@@ -330,7 +331,7 @@ f_open(char *name, char *mode)
 		    strchr(mode, 'a') != NULL ||
 		    strchr(mode, '+') != NULL)) {
 		/* writing new files disallowed */
-		if (start_done) {
+		if (run_state > RUN_BEGIN) {
 			fprintf(stderr,
 				"open of %s mode %s - %s\n", name, mode,
 				"open for write disallowed by -m\n");
@@ -375,7 +376,6 @@ openfile(char *name)
 	cip->i_state = IS_READ;
 	cip->i_char = '\0';
 	cip->i_str = NULL;
-	cip->i_origstr = NULL;
 	cip->i_ttystr = NULL;
 	cip->i_fp = fp;
 	cip->i_line = 1;
@@ -401,7 +401,7 @@ curstream(void)
 
 
 /*
- * Open a string for scanning. String is ended by a null character.
+ * Open a string for scanning, num characters to be read.
  * String is copied into local memory so it can be trashed afterwards.
  * Returns -1 if cannot open string.
  *
@@ -409,21 +409,22 @@ curstream(void)
  *	str		string to be opened
  */
 int
-openstring(char *str)
+openstring(char *str, long num)
 {
 	char *cp;		/* copied string */
 
 	if ((depth >= MAXDEPTH) || (str == NULL))
 		 return -2;
-	cp = (char *)malloc(strlen(str) + 1);
+	cp = (char *) malloc(num + 1);
 	if (cp == NULL)
 		 return -1;
 	strcpy(cp, str);
 	cip = inputs + depth++;
 	cip->i_state = IS_READ;
 	cip->i_char = '\0';
+	cip->i_cp = cp;
 	cip->i_str = cp;
-	cip->i_origstr = cp;
+	cip->i_num = num;
 	cip->i_fp = NULL;
 	cip->i_name = NULL;
 	cip->i_ttystr = NULL;
@@ -445,7 +446,6 @@ openterminal(void)
 	cip->i_state = IS_READ;
 	cip->i_char = '\0';
 	cip->i_str = NULL;
-	cip->i_origstr = NULL;
 	cip->i_ttystr = NULL;
 	cip->i_fp = NULL;
 	cip->i_name = NULL;
@@ -462,8 +462,8 @@ closeinput(void)
 {
 	if (depth <= 0)
 		return;
-	if (cip->i_origstr)
+	if (cip->i_str)
-		free(cip->i_origstr);
+		free(cip->i_str);
 	if (cip->i_fp)
 		fclose(cip->i_fp);
 	if (cip->i_name)
@@ -515,8 +515,11 @@ nextchar(void)
 		 return ch;
 	}
 	if (cip->i_str) {		/* from string */
-		ch = chartoint(*cip->i_str++);
+		if (cip->i_num) {
-		if (ch == '\0')
+			ch = chartoint(*cip->i_cp++);
+			cip->i_num--;
+		}
+		else
 			ch = EOF;
 	} else if (cip->i_fp) {		/* from file */
 		ch = fgetc(cip->i_fp);
@@ -525,10 +528,6 @@ nextchar(void)
 	} else {			/* from terminal */
 		ch = ttychar();
 	}
-	if (ch == EOF) {		/* fix up end of file */
-		closeinput();
-		ch = EOF;
-	}
 	if (depth > 0)
 		cip->i_char = ch;	/* save for rereads */
 	if (ch == '\n')
@@ -663,6 +662,16 @@ inputisterminal(void)
 }
 
 
+/*
+ * Return depth of current input source
+ */
+int
+inputlevel(void)
+{
+	return depth - 1;
+}
+
+
 /*
  * Return the name of the current input file.
  * Returns NULL for terminal or strings.
@@ -739,6 +748,7 @@ runrcfiles(void)
 		if (i < 0)
 			continue;
 		getcommands(FALSE);
+		closeinput();
 	}
 }
 

lib/chrem.cal

@@ -86,7 +86,7 @@
  *	i.e., any value that is 301 mod 420.
  *
  * Written by: Ernest W Bowen <ernie@neumann.une.edu.au>
- * Interface by: Landon Curt Noll <chongo@toad.com>
+ * Interface by: Landon Curt Noll http://reality.sgi.com/chongo
  */
 
 static defaultmlist = list(2,3,5,7,11,13,17,19); /* The first eight primes */

lib/lucas.cal

@@ -19,7 +19,10 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here	/\../\		chongo@toad.com
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  */
 /*
  * lucas - perform a Lucas primality test on h*2^n-1

lib/lucas_chk.cal

@@ -19,7 +19,10 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here	/\../\		chongo@toad.com
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  */
 /*
  * primes of the form h*2^n-1 for 1<=h<200 and 1<=n<1000

lib/lucas_tbl.cal

@@ -19,7 +19,10 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here	/\../\		chongo@toad.com
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  */
 /*
  * Lucasian criteria for primality

lib/mfactor.cal

@@ -19,7 +19,10 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here	/\../\		chongo@toad.com
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  */
 
 

lib/qtime.cal

@@ -7,7 +7,7 @@
  *	utc_hr_offset	Offset from UTC in hours.
  *
  * Written by: Klaus Alexander Seistrup <kseis@magnetic-ink.dk>
- * With minor mods by: Landon Curt Noll <chongo@toad.com>
+ * With minor mods by: Landon Curt Noll <http://reality.sgi.com/chongo>
  *
  * See:
  *	http://www.magnetic-ink.dk/download/qtime.html

lib/randmprime.cal

@@ -21,7 +21,10 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here	/\../\		chongo@toad.com
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  */
 
 /* obtain our required libs */

lib/regress.cal

@@ -4223,7 +4223,7 @@ define test_random()
 
 	/* test range interface some more */
 	tmp = srandom(state1);
-	print				  '5369: tmp = srandom(0)';
+	print				  '5369: tmp = srandom(state1)';
 	vrfy(random(-46,46) == -0x7,	  '5370: random(-46,46) == -0x7');
 	vrfy(random(21701,23209) == 23061,
 		'5371: random(21701,23209) == 23061');
@@ -7393,6 +7393,23 @@ print;
 return test_somenew();
 
 
+/*
+ * misc define tests
+ */
+print;
+print	'8300: Starting define tests';
+define f8300(x) = x^2; define g8300(x) = 1 - x;
+print	'8301: define f8300(x) = x^2; define g8300(x) = 1 - x;';
+vrfy(f8300(10) == 100,		'8302: f8300(10) == 100');
+vrfy(g8300(10) == -9,		'8303: g8300(10) == -9');
+define h8300(x)=x^3;define i8300(x)=x-1;define j8300(x)=x+1;
+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';
+
+
 /*
  * read various calc libs
  *

lib/seedrandom.cal

@@ -19,7 +19,10 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here	/\../\		chongo@toad.com
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  */
 
 /*

lib/test1700.cal

@@ -3,8 +3,10 @@
  * Permission is granted to use, distribute, or modify this source,
  * provided that this copyright notice remains intact.
  *
- * By: Landon Curt Noll
+ * By:  Landon Curt Noll
- *     chongo@toad.com  -or-  ...!{pyramid,sun,uunet}!hoptoad!chongo
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  *
  * This library is used by the 1700 series of the regress.cal test suite.
  */

lib/test2300.cal

@@ -3,8 +3,10 @@
  * Permission is granted to use, distribute, or modify this source,
  * provided that this copyright notice remains intact.
  *
- * By: Landon Curt Noll
+ * By:  Landon Curt Noll
- *     chongo@toad.com  -or-  ...!{pyramid,sun,uunet}!hoptoad!chongo
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  *
  * This library is used by the 2300 series of the regress.cal test suite.
  */

lib/test2600.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 2600 series of the regress.cal test suite.
  */

lib/test2700.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 2700 series of the regress.cal test suite.
  */

lib/test3100.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 3100 series of the regress.cal test suite.
  */

lib/test3300.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 3300 series of the regress.cal test suite.
  */

lib/test3400.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 3400 series of the regress.cal test suite.
  */

lib/test3500.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 3500 series of the regress.cal test suite.
  */

lib/test4000.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 4000 series of the regress.cal test suite.
  */

lib/test4100.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 4100 series of the regress.cal test suite.
  */

lib/test4600.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 4600 series of the regress.cal test suite.
  */

lib/test5100.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 5100 series of the regress.cal test suite.
  */

lib/test5200.cal

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  *
  * This library is used by the 5200 series of the regress.cal test suite.
  */

lib_calc.c

@@ -63,8 +63,8 @@ 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 */
-int start_done = FALSE;	/* TRUE => start up processing finished */
+run run_state = RUN_UNKNOWN;	/* calc startup and run state */
-char *program = "calc";	/* our name */
+char *program = "calc";		/* our name */
 char cmdbuf[MAXCMD+1+1+1];	/* command line expression + "\n\0" + guard */
 
 
@@ -83,8 +83,8 @@ int p_flag = FALSE;	/* TRUE => pipe mode */
 int q_flag = FALSE;	/* TRUE => don't execute rc files */
 int u_flag = FALSE;	/* TRUE => unbuffer stdin and stdout */
 int d_flag = FALSE;	/* TRUE => disable heading, lib_debug == 0 */
-
+int c_flag = FALSE;	/* TRUE => continue on error if permitted */
-int stoponerror = FALSE;	/* >0 => stop, <0 => continue on error */
+int i_flag = FALSE;	/* TRUE => go interactive if permitted */
 
 /*
  * global values
@@ -96,8 +96,9 @@ char *home;		/* $HOME or default */
 char *pager;		/* $PAGER or default */
 char *shell;		/* $SHELL or default */
 int stdin_tty = FALSE;	/* TRUE if stdin is a tty */
-int interactive = FALSE; /* TRUE if interactive session (no cmd args) */
+int havecommands = FALSE;	/* TRUE if have one or more cmd args */
-int post_init = FALSE;	/* TRUE setjmp for math_error is readready */
+int stoponerror = FALSE;	/* >0 => stop, <0 => continue on error */
+int post_init = FALSE;	/* TRUE setjmp for math_error is ready */
 
 int no_env = FALSE;	/* TRUE (-e) => ignore env vars on startup */
 int errmax = ERRMAX;	/* if >= 0,  maximum value for errcount */
@@ -164,6 +165,13 @@ libcalc_call_me_first(void)
 		conf->lib_debug = 0;
 	}
 
+	/*
+	 * -p turns off tab
+	 */
+	if (p_flag) {
+		conf->tab_ok = 0;
+	}
+
 	/*
 	 * initialize
 	 */
@@ -172,6 +180,7 @@ libcalc_call_me_first(void)
 	/*
 	 * ready to rock & roll ..
 	 */
+	run_state = RUN_BEGIN;
 	init_done = 1;
 	return;
 }
@@ -238,6 +247,7 @@ reinitialize(void)
 	math_setfp(stdout);
 	resetscopes();
 	resetinput();
+	inittokens();
 	(void) openterminal();
 }
 

math_error.h

@@ -27,12 +27,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 

nametype.h

@@ -28,12 +28,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 

poly.c

@@ -4,7 +4,7 @@
  * provided that this copyright notice remains intact.
  *
  * By: Ernest Bowen and Landon Curt Noll
- *     ernie@neumann.une.edu.au and chongo@toad.com
+ *     ernie@neumann.une.edu.au and http://reality.sgi.com/chongo
  */
 
 #include "value.h"

quickhash.c

@@ -19,7 +19,10 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here	/\../\
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  */
 
 /*
@@ -81,7 +84,7 @@ static QCKHASH blk_hash(BLOCK *blk, QCKHASH val);
  * The basis of the hash algorithm was taken from an idea
  * sent by Email to the IEEE Posix P1003.2 mailing list from
  * Phong Vo (kpv@research.att.com) and Glenn Fowler (gsf@research.att.com).
- * Landon Curt Noll (chongo@toad.com) later improved on there
+ * 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

sample/Makefile

@@ -26,12 +26,10 @@
 #
 # Happy bit twiddling,
 #
-#			Landon Curt Noll
+#      Landon Curt Noll
+#      http://reality.sgi.com/chongo
 #
-#			chongo@toad.com
+# chongo <was here> /\../\
-#			...!{pyramid,sun,uunet}!hoptoad!chongo
-#
-# chongo was here	/\../\
 
 ##############################################################################
 #-=-=-=-=-=-=-=-=- You may want to change some values below -=-=-=-=-=-=-=-=-#
@@ -208,11 +206,6 @@ CALC_LIBS= ../libcalc.a ../custom/libcustcalc.a
 
 ###
 #
-# Normally, the upper level makefile will set these values.  We provide
-# a default here just in case you want to build from this directory.
-#
-# Select your compiler type by commenting out one of the cc sets below:
-#
 # CCOPT are flags given to ${CC} for optimization
 # CCWARN are flags given to ${CC} for warning message control
 # CCMISC are misc flags given to ${CC}
@@ -220,32 +213,36 @@ CALC_LIBS= ../libcalc.a ../custom/libcustcalc.a
 # CFLAGS are all flags given to ${CC} [[often includes CCOPT, CCWARN, CCMISC]]
 # ICFLAGS are given to ${CC} for intermediate progs
 #
-# CCMAIN are flags for ${CC} when files with main() instead of CFLAGS
-#
 # LCFLAGS are CC-style flags for ${LINT}
 # LDFLAGS are flags given to ${CC} for linking .o files
 # ILDFLAGS are flags given to ${CC} for linking .o files for intermediate progs
 #
-# CC is how the the C compiler is invoked
+# LCC how the the C compiler is invoked on locally executed intermediate progs
+# CC is how the the C compiler is invoked (with an optional Purify)
 #
 ###
 #
-# common cc set
+# default set
 #
-CCWARN=
+# Normally these values are passed in from the upper level Makefile.
+# Change these as needed if you intend to build directly in this directory.
+#
+# for better performance, set the following above:
+#     DEBUG= -O2
+#
+CCWARN= -Wall -Wno-implicit -Wno-comment
 CCOPT= ${DEBUG} ${NO_SHARED}
 CCMISC=
 #
-CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC} ${ALLOW_CUSTOM}
+CFLAGS= ${CCWARN} ${CCOPT} ${CCMISC}
 ICFLAGS= ${CCWARN} ${CCMISC}
 #
-CCMAIN= ${ICFLAGS}
-#
 LCFLAGS=
 LDFLAGS= ${NO_SHARED} ${LD_NO_SHARED}
 ILDFLAGS=
 #
-CC= ${PURIFY} cc
+LCC= gcc
+CC= ${PURIFY} ${LCC}
 
 ##############################################################################
 #-=-=-=-=-=-=-=-=- Be careful if you change something below -=-=-=-=-=-=-=-=-#
@@ -286,13 +283,13 @@ SORT= sort
 all: ${TARGETS} .all
 
 test_random.o: test_random.c
-	${CC} ${CCMAIN} ${CCOPT} ${ALLOW_CUSTOM} test_random.c -c
+	${CC} ${CFLAGS} ${ALLOW_CUSTOM} test_random.c -c
 
 test_random: test_random.o ../libcalc.a
 	${CC} ${LDFLAGS} test_random.o ${CALC_LIBS} ${LD_DEBUG} -o test_random
 
 many_random.o: many_random.c
-	${CC} ${CCMAIN} ${CCOPT} ${ALLOW_CUSTOM} many_random.c -c
+	${CC} ${CFLAGS} ${ALLOW_CUSTOM} many_random.c -c
 
 many_random: many_random.o ../libcalc.a
 	${CC} ${LDFLAGS} many_random.o ${CALC_LIBS} ${LD_DEBUG} -o many_random

seed.c

@@ -28,7 +28,10 @@
  * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  *
- * chongo was here      /\../\		{chongo,noll}@{toad,sgi}.com
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  *
  * Share and enjoy! :-)
  */
@@ -52,7 +55,9 @@
 #include <sys/stat.h>
 #include <sys/resource.h>
 #include <setjmp.h>
+#if !defined(__bsdi)
 #include <ustat.h>
+#endif /* __bsdi */
 #if defined(__linux)
 # include <fcntl.h>
 # define DEV_URANDOM "/dev/urandom"
@@ -111,8 +116,8 @@ hash_buf(char *buf, unsigned len)
 	 *
 	 * for information on 32bit and 64bit Fowler/Noll/Vo hashes.
 	 *
-	 * Landon Curt Noll (chongo@toad.com) later improved on their
+	 * Landon Curt Noll (http://reality.sgi.com/chongo) later improved
-	 * algorithm to come up with Fowler/Noll/Vo hash.
+	 * on their algorithm to come up with Fowler/Noll/Vo hash.
 	 *
 	 * The 32 hash was able to process 234936 words from the web2 dictionary
 	 * without any 32 bit collisions using a constant of
@@ -214,8 +219,6 @@ pseudo_seed(void)
 	char urandom_pool[DEV_URANDOM_POOL];	/* /dev/urandom data pool */
 #endif /* __linux */
 	struct timeval tp;              /* time of day */
-	pid_t getsid;                   /* session ID */
-	pid_t getpgid;                  /* process group ID */
 	pid_t getpid;                   /* process ID */
 	pid_t getppid;                  /* parent process ID */
 	uid_t getuid;                   /* real user ID */
@@ -229,6 +232,7 @@ pseudo_seed(void)
 	struct stat fstat_stdin;        /* stat of stdin */
 	struct stat fstat_stdout;       /* stat of stdout */
 	struct stat fstat_stderr;       /* stat of stderr */
+#if !defined(__bsdi)
 	struct ustat ustat_dot;         /* usage stat of "." */
 	struct ustat ustat_dotdot;      /* usage stat of ".." */
 	struct ustat ustat_tmp;         /* usage stat of "/tmp" */
@@ -236,6 +240,9 @@ pseudo_seed(void)
 	struct ustat ustat_stdin;       /* usage stat of stdin */
 	struct ustat ustat_stdout;      /* usage stat of stdout */
 	struct ustat ustat_stderr;      /* usage stat of stderr */
+	pid_t getsid;                   /* session ID */
+	pid_t getpgid;                  /* process group ID */
+#endif /* __bsdi */
 	struct rusage rusage;           /* resource utilization */
 	struct rusage rusage_chld;      /* resource utilization of children */
 	struct timeval tp2;             /* time of day again */
@@ -271,8 +278,6 @@ pseudo_seed(void)
     }
 #endif /* __linux */
     (void) gettimeofday(&sdata.tp, NULL);
-    sdata.getsid = getsid((pid_t)0);
-    sdata.getpgid = getpgid((pid_t)0);
     sdata.getpid = getpid();
     sdata.getppid = getppid();
     sdata.getuid = getuid();
@@ -286,6 +291,7 @@ pseudo_seed(void)
     (void) fstat(0, &sdata.fstat_stdin);
     (void) fstat(1, &sdata.fstat_stdout);
     (void) fstat(2, &sdata.fstat_stderr);
+#if !defined(__bsdi)
     (void) ustat(sdata.stat_dotdot.st_dev, &sdata.ustat_dotdot);
     (void) ustat(sdata.stat_dot.st_dev, &sdata.ustat_dot);
     (void) ustat(sdata.stat_tmp.st_dev, &sdata.ustat_tmp);
@@ -293,6 +299,9 @@ pseudo_seed(void)
     (void) ustat(sdata.fstat_stdin.st_dev, &sdata.ustat_stdin);
     (void) ustat(sdata.fstat_stdout.st_dev, &sdata.ustat_stdout);
     (void) ustat(sdata.fstat_stderr.st_dev, &sdata.ustat_stderr);
+    sdata.getsid = getsid((pid_t)0);
+    sdata.getpgid = getpgid((pid_t)0);
+#endif /* __bsdi */
     (void) getrusage(RUSAGE_SELF, &sdata.rusage);
     (void) getrusage(RUSAGE_CHILDREN, &sdata.rusage_chld);
     (void) gettimeofday(&sdata.tp2, NULL);

shs.c

@@ -11,7 +11,10 @@
  *
  * This file was Modified/Re-written by:
  *
- *	 Landon Curt Noll  (chongo@toad.com)	chongo <was here> /\../\
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  *
  * This code has been placed in the public domain.  Please do not
  * copyright this code.
@@ -26,7 +29,7 @@
  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *
  * Based on Version 2.11 (09 Mar 1995) from Landon Curt Noll's
- * (chongo@toad.com) shs hash program.
+ * (http://reality.sgi.com/chongo) shs hash program.
  *
  ****
  *

shs.h

@@ -11,7 +11,10 @@
  *
  * This file was Modified by:
  *
- *	 Landon Curt Noll  (chongo@toad.com)	chongo <was here> /\../\
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  *
  * This code has been placed in the public domain.  Please do not
  * copyright this code.

shs1.c

@@ -5,7 +5,10 @@
  *
  * This file was Modified/Re-written by:
  *
- *	 Landon Curt Noll  (chongo@toad.com)	chongo <was here> /\../\
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  *
  * This code has been placed in the public domain.  Please do not
  * copyright this code.

shs1.h

@@ -5,7 +5,10 @@
  *
  * This file was Modified by:
  *
- *	 Landon Curt Noll  (chongo@toad.com)	chongo <was here> /\../\
+ *      Landon Curt Noll
+ *      http://reality.sgi.com/chongo
+ *
+ *      chongo <was here> /\../\
  *
  * This code has been placed in the public domain.  Please do not
  * copyright this code.

string.c

@@ -1142,7 +1142,7 @@ initstrings(void)
 
 /*
  * addstring is called only from token.c
- * When called, len is length if string including '\0'
+ * When called, len is length of string including '\0'
  */
 long
 addstring(char *str, long len)

token.c

@@ -458,6 +458,7 @@ eatstring(int quotechar)
 		}
 		memcpy(str + totlen, buf, len);
 		totlen += len;
+		len = 0;
 	    }
 	}
   	curtoken.t_strindex = addstring(str, totlen + len);
@@ -643,6 +644,10 @@ scanerror(int skip, char *fmt, ...)
 	va_end(ap);
 	fprintf(stderr, "%s\n", buf);
 
+	/* bail out if continuation not permitted */
+	if ((!c_flag && !stoponerror) || stoponerror > 0)
+		longjmp(jmpbuf, 1);
+
 	/* bail out if too many errors */
 	if (conf->maxscancount > 0 && errorcount > conf->maxscancount) {
 		fputs("Too many scan errors, compilation aborted.\n", stderr);

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	"7.1"	/* test number or empty string if no patch */
+#define MINOR_PATCH	"8"	/* test number or empty string if no patch */
 
 /*
  * calc version constants

zrand.c

@@ -28,12 +28,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 /*

zrand.h

@@ -28,12 +28,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 /*
  * random number generator - see zrand.c for details

zrandom.c

@@ -28,12 +28,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 
 /*
@@ -1571,6 +1569,12 @@ static RANDOM random_pregen[BLUM_PREGEN] = {
 };
 
 
+/*
+ * forward static declarations
+ */
+static void zfree_random(ZVALUE z);
+
+
 /*
  * zsrandom1 - seed the Blum generator 1 arg style
  *
@@ -1647,7 +1651,7 @@ zsrandom1(CONST ZVALUE seed, BOOL need_ret)
 		do {
 			/* free temp storage */
 			if (last_r.v != NULL) {
-				zfree(last_r);
+				zfree_random(last_r);
 			}
 
 			/*
@@ -1657,10 +1661,10 @@ zsrandom1(CONST ZVALUE seed, BOOL need_ret)
 			last_r = r;
 			zsquaremod(last_r, blum.n, &r);
 		} while (zrel(r, last_r) > 0);
-		zfree(blum.r);
+		zfree_random(blum.r);
 		blum.r = r;
 		/* free temp storage */
-		zfree(last_r);
+		zfree_random(last_r);
 
 	/*
 	 * reserved seed
@@ -1741,7 +1745,7 @@ zsrandom2(CONST ZVALUE seed, CONST ZVALUE newn)
 			math_error("srandom small newn must be [1,20]");
 			/*NOTREACHED*/
 		}
-		zfree(blum.n);
+		zfree_random(blum.n);
 		zcopy(random_pregen[set-1].n, &blum.n);
 		blum.loglogn = random_pregen[set-1].loglogn;
 		blum.mask = random_pregen[set-1].mask;
@@ -1750,7 +1754,7 @@ zsrandom2(CONST ZVALUE seed, CONST ZVALUE newn)
 		 * reset initial seed as well if seed is 0
 		 */
 		if (ziszero(seed)) {
-			zfree(blum.r);
+			zfree_random(blum.r);
 			zcopy(random_pregen[set-1].r, &blum.r);
 
 		/*
@@ -1785,7 +1789,7 @@ zsrandom2(CONST ZVALUE seed, CONST ZVALUE newn)
 		 * of two primes.
 		 */
 		/* load modulus */
-		zfree(blum.n);
+		zfree_random(blum.n);
 		zcopy(newn, &blum.n);
 
 		/*
@@ -1894,11 +1898,11 @@ zsrandom4(CONST ZVALUE seed, CONST ZVALUE ip, CONST ZVALUE iq, long trials)
 	/*
 	 * form the Blum modulus
 	 */
-	zfree(blum.n);
+	zfree_random(blum.n);
 	zmul(p, q, &blum.n);
 	/* free temp storage */
-	zfree(p);
+	zfree_random(p);
-	zfree(q);
+	zfree_random(q);
 
 	/*
 	 * form the loglogn and mask
@@ -2045,7 +2049,7 @@ zrandomskip(long cnt)
 
 		/* turn the Blum-Blum-Shub crank */
 		zsquaremod(blum.r, blum.n, &new_r);
-		zfree(blum.r);
+		zfree_random(blum.r);
 		blum.r = new_r;
 		cnt -= blum.loglogn;
 	}
@@ -2057,7 +2061,7 @@ zrandomskip(long cnt)
 
 		/* turn the Blum-Blum-Shub crank */
 		zsquaremod(blum.r, blum.n, &new_r);
-		zfree(blum.r);
+		zfree_random(blum.r);
 		blum.r = new_r;
 
 		/* fill the buffer with the unused bits */
@@ -2197,7 +2201,7 @@ zrandom(long cnt, ZVALUE *res)
 		 * turn the Blum-Blum-Shub crank
 		 */
 		zsquaremod(blum.r, blum.n, &new_r);
-		zfree(blum.r);
+		zfree_random(blum.r);
 		blum.r = new_r;
 		/* peal off the bottom loglogn bits */
 		blum.buffer = (blum.r.v[0] & mask);
@@ -2228,7 +2232,7 @@ zrandom(long cnt, ZVALUE *res)
 	 */
 	/* turn the Blum-Blum-Shub crank */
 	zsquaremod(blum.r, blum.n, &new_r);
-	zfree(blum.r);
+	zfree_random(blum.r);
 	blum.r = new_r;
 	/* peal off the bottom loglogn bits */
 	blum.buffer = (blum.r.v[0] & mask);
@@ -2282,13 +2286,13 @@ zrandomrange(CONST ZVALUE low, CONST ZVALUE high, ZVALUE *res)
 	 */
 	zsub(high, low, &range);
 	if (zisone(range)) {
-		zfree(range);
+		zfree_random(range);
 		*res = low;
 		return;
 	}
 	zsub(range, _one_, &rangem1);
 	bitlen = 1+zhighbit(rangem1);
-	zfree(rangem1);
+	zfree_random(rangem1);
 
 	/*
 	 * generate a random value between [0, diff)
@@ -2302,7 +2306,7 @@ zrandomrange(CONST ZVALUE low, CONST ZVALUE high, ZVALUE *res)
 	rval.v = NULL;
 	do {
 		if (rval.v != NULL) {
-			zfree(rval);
+			zfree_random(rval);
 		}
 		zrandom(bitlen, &rval);
 	} while (zrel(rval, range) >= 0);
@@ -2312,8 +2316,8 @@ zrandomrange(CONST ZVALUE low, CONST ZVALUE high, ZVALUE *res)
 	 * which is the range [low, high)
 	 */
 	zadd(rval, low, res);
-	zfree(rval);
+	zfree_random(rval);
-	zfree(range);
+	zfree_random(range);
 }
 
 
@@ -2341,8 +2345,8 @@ irandom(long s)
 	itoz(s, &z1);
 	zrandomrange(_zero_, z1, &z2);
 	res = ztoi(z2);
-	zfree(z1);
+	zfree_random(z1);
-	zfree(z2);
+	zfree_random(z2);
 	return res;
 }
 
@@ -2377,12 +2381,20 @@ randomcopy(CONST RANDOM *state)
 	if (state->r.v == NULL) {
 		ret->r.v = NULL;
 	} else {
-		zcopy(state->r, &ret->r);
+		if (state->r.v == h_rdefvec) {
+			ret->r.v = state->r.v;
+		} else {
+			zcopy(state->r, &ret->r);
+		}
 	}
 	if (state->n.v == NULL) {
 		ret->n.v = NULL;
 	} else {
-		zcopy(state->n, &ret->n);
+		if (state->n.v == h_ndefvec) {
+			ret->n.v = state->n.v;
+		} else {
+			zcopy(state->n, &ret->n);
+		}
 	}
 
 	/*
@@ -2414,12 +2426,8 @@ randomfree(RANDOM *state)
 	}
 
 	/* free the values */
-	if (state->n.v != h_ndefvec) {
+	zfree_random(state->n);
-		zfree(state->n);
+	zfree_random(state->r);
-	}
-	if (state->r.v != h_rdefvec) {
-		zfree(state->r);
-	}
 
 	/* free it if it is not pre-defined */
 	state->seeded = 0;
@@ -2505,9 +2513,43 @@ randomprint(CONST RANDOM *state, int flags)
 void
 random_libcalc_cleanup(void)
 {
-	/* free if we are seeded now */
+	/* free our state - let zfree_random protect the default state */
-	if (blum.seeded) {
+	randomfree(&blum);
-		randomfree(&blum);
+	return;
+}
+
+
+/*
+ * zfree_random - perform a zfree if we are not trying to free static data
+ *
+ * given:
+ *	z	the ZVALUE to zfree(z) if not pointing to static data
+ */
+static void
+zfree_random(ZVALUE z)
+{
+	if (z.v != h_ndefvec && z.v != h_rdefvec && z.v != h_rdefvec_2 &&
+	    z.v != h_nvec01 && z.v != h_rvec01 &&
+	    z.v != h_nvec02 && z.v != h_rvec02 &&
+	    z.v != h_nvec03 && z.v != h_rvec03 &&
+	    z.v != h_nvec04 && z.v != h_rvec04 &&
+	    z.v != h_nvec05 && z.v != h_rvec05 &&
+	    z.v != h_nvec06 && z.v != h_rvec06 &&
+	    z.v != h_nvec07 && z.v != h_rvec07 &&
+	    z.v != h_nvec08 && z.v != h_rvec08 &&
+	    z.v != h_nvec09 && z.v != h_rvec09 &&
+	    z.v != h_nvec10 && z.v != h_rvec10 &&
+	    z.v != h_nvec11 && z.v != h_rvec11 &&
+	    z.v != h_nvec12 && z.v != h_rvec12 &&
+	    z.v != h_nvec13 && z.v != h_rvec13 &&
+	    z.v != h_nvec14 && z.v != h_rvec14 &&
+	    z.v != h_nvec15 && z.v != h_rvec15 &&
+	    z.v != h_nvec16 && z.v != h_rvec16 &&
+	    z.v != h_nvec17 && z.v != h_rvec17 &&
+	    z.v != h_nvec18 && z.v != h_rvec18 &&
+	    z.v != h_nvec19 && z.v != h_rvec19 &&
+	    z.v != h_nvec20 && z.v != h_rvec20) {
+		zfree(z);
 	}
 	return;
 }

zrandom.h

@@ -28,12 +28,10 @@
  *
  * Happy bit twiddling,
  *
- *			Landon Curt Noll
+ *	Landon Curt Noll
+ *	http://reality.sgi.com/chongo
  *
- *			chongo@toad.com
+ * chongo <was here> /\../\
- *			...!{pyramid,sun,uunet}!hoptoad!chongo
- *
- * chongo was here	/\../\
  */
 /*
  * random number generator - see zrandom.c for details