Merge branch 'gawk-5.1-stable'

16 files changed, 377 insertions, 300 deletions

diff --git a/ChangeLog b/ChangeLog
index f8b83a8c..34d3110d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2021-11-21         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* builtin.c (do_typeof): Make Node_array_ref handling smarter.
+	See test/stupid5.awk.
+
 2021-11-18         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* gawkapi.c (awk_value_to_node): Fix handling of MPFR values
diff --git a/builtin.c b/builtin.c
index c27b5081..386b6ed4 100644
--- a/builtin.c
+++ b/builtin.c
@@ -4189,10 +4189,31 @@ do_typeof(int nargs)
 		}
 		break;
 	case Node_var_new:
-	case Node_array_ref:
 		res = "untyped";
 		deref = false;
 		break;
+	case Node_array_ref:
+		/*
+		 *	function f(x) {
+		 *	   print typeof(x)
+		 *	   y = x
+		 *	   print typeof(x)
+		 *	}
+		 *
+		 *	BEGIN {
+		 *	   print typeof(x)
+		 *	   f(x)
+		 *	}
+		 */
+		if (arg->orig_array->type == Node_var
+		    && (arg->orig_array->var_value == Nnull_string
+		        || (arg->orig_array->var_value->flags & NULL_FIELD) != 0)) {
+			res = "unassigned";
+		} else {
+			res = "untyped";
+		}
+		deref = false;
+		break;
 	case Node_var:
 		/*
 		 * Note: this doesn't happen because the function calling code
diff --git a/doc/ChangeLog b/doc/ChangeLog
index 533c7983..652c6a31 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,8 @@
+2021-11-21         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* gawktexi.in (Getopt Function): Note that long option support
+	was contributed by Greg Minshall, and add him to the index.
+
 2021-11-15         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* gawktexi.in: Fix a small typo.  Thanks to J Naman
diff --git a/doc/gawk.info b/doc/gawk.info
index f93d89fd..f29969b4 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -16898,7 +16898,8 @@ Options::).
 
    The abstraction provided by 'getopt()' is very useful and is quite
 handy in 'awk' programs as well.  Following is an 'awk' version of
-'getopt()' that accepts both short and long options.
+'getopt()' that accepts both short and long options.  (Support for long
+options was supplied by Greg Minshall.  We thank him.)
 
    This function highlights one of the greatest weaknesses in 'awk',
 which is that it is very poor at manipulating single characters.  The
@@ -37103,8 +37104,8 @@ Index
 * getlocaltime() user-defined function:  Getlocaltime Function.
                                                               (line  16)
 * getopt() function (C library):         Getopt Function.     (line  15)
-* getopt() user-defined function:        Getopt Function.     (line 116)
-* getopt() user-defined function <1>:    Getopt Function.     (line 143)
+* getopt() user-defined function:        Getopt Function.     (line 117)
+* getopt() user-defined function <1>:    Getopt Function.     (line 144)
 * getpwent() function (C library):       Passwd Functions.    (line  16)
 * getpwent() function (C library) <1>:   Passwd Functions.    (line 195)
 * getpwent() user-defined function:      Passwd Functions.    (line  16)
@@ -37480,6 +37481,7 @@ Index
 * metacharacters, escape sequences for:  Escape Sequences.    (line 139)
 * metacharacters, in regular expressions: Regexp Operators.   (line   6)
 * minimum precision required by MPFR library: Auto-set.       (line 279)
+* Minshall, Greg:                        Getopt Function.     (line 105)
 * mkbool:                                Boolean Functions.   (line  10)
 * mktime:                                Time Functions.      (line  25)
 * modifiers, in format specifiers:       Format Modifiers.    (line   6)
@@ -38579,8 +38581,8 @@ Index
 * user-defined, function, beginfile():   Filetrans Function.  (line  62)
 * user-defined, function, endfile():     Filetrans Function.  (line  62)
 * user-defined, function, rewind():      Rewind Function.     (line  15)
-* user-defined, function, getopt():      Getopt Function.     (line 116)
-* user-defined, function, getopt() <1>:  Getopt Function.     (line 143)
+* user-defined, function, getopt():      Getopt Function.     (line 117)
+* user-defined, function, getopt() <1>:  Getopt Function.     (line 144)
 * user-defined, function, getpwent():    Passwd Functions.    (line  16)
 * user-defined, function, _pw_init():    Passwd Functions.    (line 105)
 * user-defined, function, getpwnam():    Passwd Functions.    (line 179)
@@ -39024,295 +39026,295 @@ Ref: File Checking-Footnote-1694658
 Node: Empty Files694859
 Node: Ignoring Assigns696838
 Node: Getopt Function698388
-Ref: Getopt Function-Footnote-1713611
-Node: Passwd Functions713811
-Ref: Passwd Functions-Footnote-1722650
-Node: Group Functions722738
-Ref: Group Functions-Footnote-1730636
-Node: Walking Arrays730843
-Node: Library Functions Summary733851
-Node: Library Exercises735257
-Node: Sample Programs735722
-Node: Running Examples736492
-Node: Clones737220
-Node: Cut Program738444
-Node: Egrep Program748584
-Node: Id Program757585
-Node: Split Program767520
-Ref: Split Program-Footnote-1777413
-Node: Tee Program777586
-Node: Uniq Program780376
-Node: Wc Program787964
-Node: Bytes vs. Characters788351
-Node: Using extensions789899
-Node: wc program790653
-Node: Miscellaneous Programs795518
-Node: Dupword Program796731
-Node: Alarm Program798761
-Node: Translate Program803616
-Ref: Translate Program-Footnote-1808181
-Node: Labels Program808451
-Ref: Labels Program-Footnote-1811802
-Node: Word Sorting811886
-Node: History Sorting815958
-Node: Extract Program818183
-Node: Simple Sed826196
-Node: Igawk Program829270
-Ref: Igawk Program-Footnote-1843601
-Ref: Igawk Program-Footnote-2843803
-Ref: Igawk Program-Footnote-3843925
-Node: Anagram Program844040
-Node: Signature Program847102
-Node: Programs Summary848349
-Node: Programs Exercises849563
-Ref: Programs Exercises-Footnote-1853693
-Node: Advanced Features853779
-Node: Nondecimal Data855910
-Node: Boolean Typed Values857508
-Node: Array Sorting859389
-Node: Controlling Array Traversal860094
-Ref: Controlling Array Traversal-Footnote-1868462
-Node: Array Sorting Functions868580
-Ref: Array Sorting Functions-Footnote-1873954
-Node: Two-way I/O874150
-Ref: Two-way I/O-Footnote-1881876
-Ref: Two-way I/O-Footnote-2882063
-Node: TCP/IP Networking882145
-Node: Profiling885221
-Node: Extension Philosophy894530
-Node: Advanced Features Summary896009
-Node: Internationalization898024
-Node: I18N and L10N899698
-Node: Explaining gettext900385
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-Node: Translator i18n911625
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-Node: Printf Ordering913637
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-Node: I18N Example919006
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-Node: I18N Summary923085
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-Node: Debugging925426
-Node: Debugging Concepts925867
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-Ref: Awk Debugging-Footnote-1931196
-Node: Sample Debugging Session931328
-Node: Debugger Invocation931862
-Node: Finding The Bug933248
-Node: List of Debugger Commands939722
-Node: Breakpoint Control941055
-Node: Debugger Execution Control944749
-Node: Viewing And Changing Data948111
-Node: Execution Stack951652
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-Node: Miscellaneous Debugger Commands957360
-Node: Readline Support962422
-Node: Limitations963318
-Node: Debugging Summary965872
-Node: Namespaces967151
-Node: Global Namespace968262
-Node: Qualified Names969660
-Node: Default Namespace970659
-Node: Changing The Namespace971400
-Node: Naming Rules973014
-Node: Internal Name Management974862
-Node: Namespace Example975904
-Node: Namespace And Features978466
-Node: Namespace Summary979901
-Node: Arbitrary Precision Arithmetic981378
-Node: Computer Arithmetic982865
-Ref: table-numeric-ranges986631
-Ref: table-floating-point-ranges987125
-Ref: Computer Arithmetic-Footnote-1987784
-Node: Math Definitions987841
-Ref: table-ieee-formats990817
-Node: MPFR features991385
-Node: FP Math Caution993103
-Ref: FP Math Caution-Footnote-1994175
-Node: Inexactness of computations994544
-Node: Inexact representation995575
-Node: Comparing FP Values996935
-Node: Errors accumulate998176
-Node: Strange values999632
-Ref: Strange values-Footnote-11002220
-Node: Getting Accuracy1002325
-Node: Try To Round1005035
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-Node: Setting the rounding mode1008462
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-Ref: Ranges and Locales-Footnote-11226220
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-Ref: Ranges and Locales-Footnote-31226482
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-Node: History summary1232702
-Node: Installation1234082
-Node: Gawk Distribution1235026
-Node: Getting1235510
-Node: Extracting1236473
-Node: Distribution contents1238111
-Node: Unix Installation1245172
-Node: Quick Installation1245976
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-Node: Shell Startup Files1249086
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-Node: Building the Documentation1255441
-Node: Non-Unix Installation1256825
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-Node: VMS Running1271007
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-Node: Usenet1283236
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-Node: Asking for help1287346
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-Ref: Basic High Level-Footnote-11337603
-Node: Basic Data Typing1337788
-Node: Glossary1341116
-Node: Copying1373003
-Node: GNU Free Documentation License1410546
-Node: Index1435666
+Ref: Getopt Function-Footnote-1713685
+Node: Passwd Functions713885
+Ref: Passwd Functions-Footnote-1722724
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+Node: Using extensions789973
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+Node: Translate Program803690
+Ref: Translate Program-Footnote-1808255
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+Ref: Labels Program-Footnote-1811876
+Node: Word Sorting811960
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+Node: Simple Sed826270
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+Node: VMS Dynamic Extensions1267134
+Node: VMS Installation Details1268819
+Node: VMS Running1271081
+Node: VMS GNV1275360
+Node: Bugs1276074
+Node: Bug definition1276986
+Node: Bug address1279922
+Node: Usenet1283310
+Node: Performance bugs1284499
+Node: Asking for help1287420
+Node: Maintainers1289387
+Node: Other Versions1290581
+Node: Installation summary1298433
+Node: Notes1299797
+Node: Compatibility Mode1300591
+Node: Additions1301373
+Node: Accessing The Source1302298
+Node: Adding Code1303735
+Node: New Ports1309927
+Node: Derived Files1314302
+Ref: Derived Files-Footnote-11319962
+Ref: Derived Files-Footnote-21319997
+Ref: Derived Files-Footnote-31320595
+Node: Future Extensions1320709
+Node: Implementation Limitations1321367
+Node: Extension Design1322577
+Node: Old Extension Problems1323721
+Ref: Old Extension Problems-Footnote-11325239
+Node: Extension New Mechanism Goals1325296
+Ref: Extension New Mechanism Goals-Footnote-11328660
+Node: Extension Other Design Decisions1328849
+Node: Extension Future Growth1330962
+Node: Notes summary1331568
+Node: Basic Concepts1332726
+Node: Basic High Level1333407
+Ref: figure-general-flow1333689
+Ref: figure-process-flow1334375
+Ref: Basic High Level-Footnote-11337677
+Node: Basic Data Typing1337862
+Node: Glossary1341190
+Node: Copying1373077
+Node: GNU Free Documentation License1410620
+Node: Index1435740
 
 End Tag Table
 
diff --git a/doc/gawk.texi b/doc/gawk.texi
index d6ef9353..4ef3266c 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -23997,9 +23997,11 @@ As a side point, @command{gawk} actually uses the GNU @code{getopt_long()}
 function to process both normal and GNU-style long options
 (@pxref{Options}).
 
+@cindex Minshall, Greg
 The abstraction provided by @code{getopt()} is very useful and is quite
 handy in @command{awk} programs as well.  Following is an @command{awk}
 version of @code{getopt()} that accepts both short and long options.
+(Support for long options was supplied by Greg Minshall. We thank him.)
 
 This function highlights one of the
 greatest weaknesses in @command{awk}, which is that it is very poor at
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index 35a6deb2..0e621e04 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -22879,9 +22879,11 @@ As a side point, @command{gawk} actually uses the GNU @code{getopt_long()}
 function to process both normal and GNU-style long options
 (@pxref{Options}).
 
+@cindex Minshall, Greg
 The abstraction provided by @code{getopt()} is very useful and is quite
 handy in @command{awk} programs as well.  Following is an @command{awk}
 version of @code{getopt()} that accepts both short and long options.
+(Support for long options was supplied by Greg Minshall. We thank him.)
 
 This function highlights one of the
 greatest weaknesses in @command{awk}, which is that it is very poor at
diff --git a/pc/ChangeLog b/pc/ChangeLog
index 42d32899..c0027c38 100644
--- a/pc/ChangeLog
+++ b/pc/ChangeLog
@@ -1,3 +1,7 @@
+2021-11-21         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* Makefile.tst: Regenerated.
+
 2021-11-08         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* Makefile.tst: Regenerated.
diff --git a/pc/Makefile.tst b/pc/Makefile.tst
index deaded78..f76a38cf 100644
--- a/pc/Makefile.tst
+++ b/pc/Makefile.tst
@@ -211,7 +211,7 @@ GAWK_EXT_TESTS = \
 	regnul1 regnul2 regx8bit reint reint2 rsgetline rsglstdin rsstart1 \
 	rsstart2 rsstart3 rstest6 sandbox1 shadow shadowbuiltin sortfor \
 	sortfor2 sortu sourcesplit split_after_fpat splitarg4 strftfld \
-	strftime strtonum strtonum1 stupid1 stupid2 stupid3 stupid4 \
+	strftime strtonum strtonum1 stupid1 stupid2 stupid3 stupid4 stupid5 \
 	switch2 symtab1 symtab10 symtab11 symtab2 symtab3 symtab4 symtab5 \
 	symtab6 symtab7 symtab8 symtab9 timeout typedregex1 typedregex2 \
 	typedregex3 typedregex4 typedregex5 typedregex6 typeof1 typeof2 \
@@ -3290,6 +3290,11 @@ stupid4:
 	@-AWKPATH="$(srcdir)" $(AWK) -f $@.awk  >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
 	@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
 
+stupid5:
+	@echo $@
+	@-AWKPATH="$(srcdir)" $(AWK) -f $@.awk  >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
+	@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+
 switch2:
 	@echo $@
 	@-AWKPATH="$(srcdir)" $(AWK) -f $@.awk  >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
diff --git a/test/ChangeLog b/test/ChangeLog
index 5832fa95..1a7b9175 100644
--- a/test/ChangeLog
+++ b/test/ChangeLog
@@ -1,3 +1,9 @@
+2021-11-21         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* Makefile.am (EXTRA_DIST): stupid5, new test.
+	* stupid5.awk, stupid5.ok: New files.
+	* stupid3.ok, stupid4.ok: Updated after code changes.
+
 2021-11-18         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* rwarray.awk: Improve test, add string and numbers.
diff --git a/test/Makefile.am b/test/Makefile.am
index ab8f4c73..10c5c812 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1243,6 +1243,8 @@ EXTRA_DIST = \
 	stupid3.ok \
 	stupid4.awk \
 	stupid4.ok \
+	stupid5.awk \
+	stupid5.ok \
 	subamp.awk \
 	subamp.in \
 	subamp.ok \
@@ -1462,7 +1464,7 @@ GAWK_EXT_TESTS = \
 	regnul1 regnul2 regx8bit reint reint2 rsgetline rsglstdin rsstart1 \
 	rsstart2 rsstart3 rstest6 sandbox1 shadow shadowbuiltin sortfor \
 	sortfor2 sortu sourcesplit split_after_fpat splitarg4 strftfld \
-	strftime strtonum strtonum1 stupid1 stupid2 stupid3 stupid4 \
+	strftime strtonum strtonum1 stupid1 stupid2 stupid3 stupid4 stupid5 \
 	switch2 symtab1 symtab10 symtab11 symtab2 symtab3 symtab4 symtab5 \
 	symtab6 symtab7 symtab8 symtab9 timeout typedregex1 typedregex2 \
 	typedregex3 typedregex4 typedregex5 typedregex6 typeof1 typeof2 \
diff --git a/test/Makefile.in b/test/Makefile.in
index 63671075..6144e749 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -1509,6 +1509,8 @@ EXTRA_DIST = \
 	stupid3.ok \
 	stupid4.awk \
 	stupid4.ok \
+	stupid5.awk \
+	stupid5.ok \
 	subamp.awk \
 	subamp.in \
 	subamp.ok \
@@ -1728,7 +1730,7 @@ GAWK_EXT_TESTS = \
 	regnul1 regnul2 regx8bit reint reint2 rsgetline rsglstdin rsstart1 \
 	rsstart2 rsstart3 rstest6 sandbox1 shadow shadowbuiltin sortfor \
 	sortfor2 sortu sourcesplit split_after_fpat splitarg4 strftfld \
-	strftime strtonum strtonum1 stupid1 stupid2 stupid3 stupid4 \
+	strftime strtonum strtonum1 stupid1 stupid2 stupid3 stupid4 stupid5 \
 	switch2 symtab1 symtab10 symtab11 symtab2 symtab3 symtab4 symtab5 \
 	symtab6 symtab7 symtab8 symtab9 timeout typedregex1 typedregex2 \
 	typedregex3 typedregex4 typedregex5 typedregex6 typeof1 typeof2 \
@@ -4965,6 +4967,11 @@ stupid4:
 	@-AWKPATH="$(srcdir)" $(AWK) -f $@.awk  >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
 	@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
 
+stupid5:
+	@echo $@
+	@-AWKPATH="$(srcdir)" $(AWK) -f $@.awk  >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
+	@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+
 switch2:
 	@echo $@
 	@-AWKPATH="$(srcdir)" $(AWK) -f $@.awk  >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
diff --git a/test/Maketests b/test/Maketests
index 36f4dc2b..f080c29f 100644
--- a/test/Maketests
+++ b/test/Maketests
@@ -2027,6 +2027,11 @@ stupid4:
 	@-AWKPATH="$(srcdir)" $(AWK) -f $@.awk  >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
 	@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
 
+stupid5:
+	@echo $@
+	@-AWKPATH="$(srcdir)" $(AWK) -f $@.awk  >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
+	@-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@
+
 switch2:
 	@echo $@
 	@-AWKPATH="$(srcdir)" $(AWK) -f $@.awk  >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@
diff --git a/test/stupid3.ok b/test/stupid3.ok
index 11beb6c9..b647c089 100644
--- a/test/stupid3.ok
+++ b/test/stupid3.ok
@@ -1,2 +1,2 @@
 TYPEOF: untyped
-TYPEOF: untyped
+TYPEOF: unassigned
diff --git a/test/stupid4.ok b/test/stupid4.ok
index 1271dad1..42380a42 100644
--- a/test/stupid4.ok
+++ b/test/stupid4.ok
@@ -1,2 +1,2 @@
 untyped
-untyped
+unassigned
diff --git a/test/stupid5.awk b/test/stupid5.awk
new file mode 100644
index 00000000..e4c0187a
--- /dev/null
+++ b/test/stupid5.awk
@@ -0,0 +1,9 @@
+BEGIN {
+   print typeof(x)
+   f(x)
+}
+
+function f(x) {
+   y = x
+   print typeof(x)
+}
diff --git a/test/stupid5.ok b/test/stupid5.ok
new file mode 100644
index 00000000..42380a42
--- /dev/null
+++ b/test/stupid5.ok
@@ -0,0 +1,2 @@
+untyped
+unassigned