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[gawk-diffs] [SCM] gawk branch, master, updated. gawk-4.1.0-3252-g68ba43
|
From: |
Arnold Robbins |
|
Subject: |
[gawk-diffs] [SCM] gawk branch, master, updated. gawk-4.1.0-3252-g68ba43d |
|
Date: |
Thu, 29 Nov 2018 14:40:36 -0500 (EST) |
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "gawk".
The branch, master has been updated
via 68ba43d9c7604d8544834dadc6f549af45d8992c (commit)
via 7c759ec96a0e5f6fac405e67e2b7299c0ac0a867 (commit)
from 334a4d623501739b794239add6fade23abbdb645 (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=68ba43d9c7604d8544834dadc6f549af45d8992c
commit 68ba43d9c7604d8544834dadc6f549af45d8992c
Author: Arnold D. Robbins <address@hidden>
Date: Thu Nov 29 21:40:23 2018 +0200
And add doc.
diff --git a/doc/gawk.info b/doc/gawk.info
index 561a40f..60713f8 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -11190,15 +11190,14 @@ they are not special:
test if an element in 'SYMTAB' is an array. Also, you may not use
the 'delete' statement with the 'SYMTAB' array.
- You may use an index for 'SYMTAB' that is not a predefined
- identifier:
+ Prior to version 5.0 of 'gawk', you could use an index for 'SYMTAB'
+ that was not a predefined identifier:
SYMTAB["xxx"] = 5
print SYMTAB["xxx"]
- This works as expected: in this case 'SYMTAB' acts just like a
- regular array. The only difference is that you can't then delete
- 'SYMTAB["xxx"]'.
+ This no longer works, instead producing a fatal error, as it led to
+ rampant confusion.
The 'SYMTAB' array is more interesting than it looks. Andrew
Schorr points out that it effectively gives 'awk' data pointers.
@@ -33916,7 +33915,7 @@ Index
* dark corner, field separators: Full Line Fields. (line 22)
* dark corner, FILENAME variable: Getline Notes. (line 19)
* dark corner, FILENAME variable <1>: Auto-set. (line 108)
-* dark corner, FNR/NR variables: Auto-set. (line 410)
+* dark corner, FNR/NR variables: Auto-set. (line 409)
* dark corner, format-control characters: Control Letters. (line 33)
* dark corner, format-control characters <1>: Control Letters.
(line 108)
@@ -34484,7 +34483,7 @@ Index
(line 12)
* FNR variable: Records. (line 6)
* FNR variable <1>: Auto-set. (line 118)
-* FNR variable, changing: Auto-set. (line 410)
+* FNR variable, changing: Auto-set. (line 409)
* for statement: For Statement. (line 6)
* for statement, looping over arrays: Scanning an Array. (line 20)
* fork() extension function: Extension Sample Fork.
@@ -35142,7 +35141,7 @@ Index
* not Boolean-logic operator: Boolean Ops. (line 6)
* NR variable: Records. (line 6)
* NR variable <1>: Auto-set. (line 143)
-* NR variable, changing: Auto-set. (line 410)
+* NR variable, changing: Auto-set. (line 409)
* null strings: awk split records. (line 121)
* null strings <1>: Regexp Field Splitting.
(line 43)
@@ -35660,7 +35659,7 @@ Index
* scanning arrays: Scanning an Array. (line 6)
* scanning multidimensional arrays: Multiscanning. (line 11)
* Schorr, Andrew: Acknowledgments. (line 60)
-* Schorr, Andrew <1>: Auto-set. (line 380)
+* Schorr, Andrew <1>: Auto-set. (line 379)
* Schorr, Andrew <2>: Contributors. (line 136)
* Schreiber, Bert: Acknowledgments. (line 38)
* Schreiber, Rita: Acknowledgments. (line 38)
@@ -35746,7 +35745,7 @@ Index
* sidebar, Beware The Smoke and Mirrors!: Bitwise Functions. (line 127)
* sidebar, Changing FS Does Not Affect the Fields: Full Line Fields.
(line 14)
-* sidebar, Changing NR and FNR: Auto-set. (line 408)
+* sidebar, Changing NR and FNR: Auto-set. (line 407)
* sidebar, Controlling Output Buffering with system(): I/O Functions.
(line 166)
* sidebar, Escape Sequences for Metacharacters: Escape Sequences.
@@ -36380,369 +36379,369 @@ Node: Exit Statement454653
Node: Built-in Variables457056
Node: User-modified458189
Node: Auto-set465956
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-Node: Reference to Elements496677
-Node: Assigning Elements499141
-Node: Array Example499632
-Node: Scanning an Array501391
-Node: Controlling Scanning504413
-Ref: Controlling Scanning-Footnote-1509812
-Node: Numeric Array Subscripts510128
-Node: Uninitialized Subscripts512312
-Node: Delete513931
-Ref: Delete-Footnote-1516683
-Node: Multidimensional516740
-Node: Multiscanning519835
-Node: Arrays of Arrays521426
-Node: Arrays Summary526194
-Node: Functions528287
-Node: Built-in529325
-Node: Calling Built-in530406
-Node: Numeric Functions532402
-Ref: Numeric Functions-Footnote-1536430
-Ref: Numeric Functions-Footnote-2536787
-Ref: Numeric Functions-Footnote-3536835
-Node: String Functions537107
-Ref: String Functions-Footnote-1560965
-Ref: String Functions-Footnote-2561093
-Ref: String Functions-Footnote-3561341
-Node: Gory Details561428
-Ref: table-sub-escapes563219
-Ref: table-sub-proposed564738
-Ref: table-posix-sub566101
-Ref: table-gensub-escapes567642
-Ref: Gory Details-Footnote-1568465
-Node: I/O Functions568619
-Ref: table-system-return-values575087
-Ref: I/O Functions-Footnote-1577167
-Ref: I/O Functions-Footnote-2577315
-Node: Time Functions577435
-Ref: Time Functions-Footnote-1588106
-Ref: Time Functions-Footnote-2588174
-Ref: Time Functions-Footnote-3588332
-Ref: Time Functions-Footnote-4588443
-Ref: Time Functions-Footnote-5588555
-Ref: Time Functions-Footnote-6588782
-Node: Bitwise Functions589048
-Ref: table-bitwise-ops589642
-Ref: Bitwise Functions-Footnote-1595705
-Ref: Bitwise Functions-Footnote-2595878
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-Ref: Math Definitions-Footnote-1928556
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-Node: Inexactness of computations931820
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-Ref: General Data Types-Footnote-1983062
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-Node: Additional Configuration Options1176961
-Node: Configuration Philosophy1179126
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-Node: PC Installation1181955
-Node: PC Binary Installation1182793
-Node: PC Compiling1183228
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-Node: Usenet1204644
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-Node: Installation summary1213823
-Node: Notes1215025
-Node: Compatibility Mode1215819
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-Node: Basic Data Typing1253434
-Node: Glossary1256762
-Node: Copying1288600
-Node: GNU Free Documentation License1326143
-Node: Index1351263
+Ref: Auto-set-Footnote-1482763
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+Ref: table-numeric-ranges923400
+Ref: table-floating-point-ranges923893
+Ref: Computer Arithmetic-Footnote-1924551
+Node: Math Definitions924608
+Ref: table-ieee-formats927924
+Ref: Math Definitions-Footnote-1928527
+Node: MPFR features928632
+Node: FP Math Caution930350
+Ref: FP Math Caution-Footnote-1931422
+Node: Inexactness of computations931791
+Node: Inexact representation932751
+Node: Comparing FP Values934111
+Node: Errors accumulate935352
+Node: Getting Accuracy936785
+Node: Try To Round939495
+Node: Setting precision940394
+Ref: table-predefined-precision-strings941091
+Node: Setting the rounding mode942921
+Ref: table-gawk-rounding-modes943295
+Ref: Setting the rounding mode-Footnote-1947226
+Node: Arbitrary Precision Integers947405
+Ref: Arbitrary Precision Integers-Footnote-1950580
+Node: Checking for MPFR950729
+Node: POSIX Floating Point Problems952203
+Ref: POSIX Floating Point Problems-Footnote-1956488
+Node: Floating point summary956526
+Node: Dynamic Extensions958716
+Node: Extension Intro960269
+Node: Plugin License961535
+Node: Extension Mechanism Outline962332
+Ref: figure-load-extension962771
+Ref: figure-register-new-function964336
+Ref: figure-call-new-function965428
+Node: Extension API Description967490
+Node: Extension API Functions Introduction969132
+Node: General Data Types974672
+Ref: General Data Types-Footnote-1983033
+Node: Memory Allocation Functions983332
+Ref: Memory Allocation Functions-Footnote-1987542
+Node: Constructor Functions987641
+Node: Registration Functions991227
+Node: Extension Functions991912
+Node: Exit Callback Functions997127
+Node: Extension Version String998377
+Node: Input Parsers999040
+Node: Output Wrappers1011761
+Node: Two-way processors1016273
+Node: Printing Messages1018538
+Ref: Printing Messages-Footnote-11019709
+Node: Updating ERRNO1019862
+Node: Requesting Values1020601
+Ref: table-value-types-returned1021338
+Node: Accessing Parameters1022274
+Node: Symbol Table Access1023509
+Node: Symbol table by name1024021
+Node: Symbol table by cookie1025810
+Ref: Symbol table by cookie-Footnote-11029995
+Node: Cached values1030059
+Ref: Cached values-Footnote-11033595
+Node: Array Manipulation1033748
+Ref: Array Manipulation-Footnote-11034839
+Node: Array Data Types1034876
+Ref: Array Data Types-Footnote-11037534
+Node: Array Functions1037626
+Node: Flattening Arrays1042124
+Node: Creating Arrays1049100
+Node: Redirection API1053867
+Node: Extension API Variables1056700
+Node: Extension Versioning1057411
+Ref: gawk-api-version1057840
+Node: Extension GMP/MPFR Versioning1059571
+Node: Extension API Informational Variables1061199
+Node: Extension API Boilerplate1062272
+Node: Changes from API V11066246
+Node: Finding Extensions1067818
+Node: Extension Example1068377
+Node: Internal File Description1069175
+Node: Internal File Ops1073255
+Ref: Internal File Ops-Footnote-11084605
+Node: Using Internal File Ops1084745
+Ref: Using Internal File Ops-Footnote-11087128
+Node: Extension Samples1087402
+Node: Extension Sample File Functions1088931
+Node: Extension Sample Fnmatch1096580
+Node: Extension Sample Fork1098067
+Node: Extension Sample Inplace1099285
+Node: Extension Sample Ord1102502
+Node: Extension Sample Readdir1103338
+Ref: table-readdir-file-types1104227
+Node: Extension Sample Revout1105032
+Node: Extension Sample Rev2way1105621
+Node: Extension Sample Read write array1106361
+Node: Extension Sample Readfile1108303
+Node: Extension Sample Time1109398
+Node: Extension Sample API Tests1110746
+Node: gawkextlib1111238
+Node: Extension summary1114156
+Node: Extension Exercises1117858
+Node: Language History1119356
+Node: V7/SVR3.11121012
+Node: SVR41123164
+Node: POSIX1124598
+Node: BTL1125978
+Node: POSIX/GNU1126707
+Node: Feature History1132485
+Node: Common Extensions1148531
+Node: Ranges and Locales1149814
+Ref: Ranges and Locales-Footnote-11154430
+Ref: Ranges and Locales-Footnote-21154457
+Ref: Ranges and Locales-Footnote-31154692
+Node: Contributors1154913
+Node: History summary1160858
+Node: Installation1162238
+Node: Gawk Distribution1163182
+Node: Getting1163666
+Node: Extracting1164629
+Node: Distribution contents1166267
+Node: Unix Installation1172747
+Node: Quick Installation1173429
+Node: Shell Startup Files1175843
+Node: Additional Configuration Options1176932
+Node: Configuration Philosophy1179097
+Node: Non-Unix Installation1181466
+Node: PC Installation1181926
+Node: PC Binary Installation1182764
+Node: PC Compiling1183199
+Node: PC Using1184316
+Node: Cygwin1187869
+Node: MSYS1188968
+Node: VMS Installation1189469
+Node: VMS Compilation1190260
+Ref: VMS Compilation-Footnote-11191489
+Node: VMS Dynamic Extensions1191547
+Node: VMS Installation Details1193232
+Node: VMS Running1195485
+Node: VMS GNV1199764
+Node: VMS Old Gawk1200499
+Node: Bugs1200970
+Node: Bug address1201633
+Node: Usenet1204615
+Node: Maintainers1205619
+Node: Other Versions1206880
+Node: Installation summary1213794
+Node: Notes1214996
+Node: Compatibility Mode1215790
+Node: Additions1216572
+Node: Accessing The Source1217497
+Node: Adding Code1218934
+Node: New Ports1225153
+Node: Derived Files1229641
+Ref: Derived Files-Footnote-11235287
+Ref: Derived Files-Footnote-21235322
+Ref: Derived Files-Footnote-31235920
+Node: Future Extensions1236034
+Node: Implementation Limitations1236692
+Node: Extension Design1237875
+Node: Old Extension Problems1239019
+Ref: Old Extension Problems-Footnote-11240537
+Node: Extension New Mechanism Goals1240594
+Ref: Extension New Mechanism Goals-Footnote-11243958
+Node: Extension Other Design Decisions1244147
+Node: Extension Future Growth1246260
+Node: Notes summary1247096
+Node: Basic Concepts1248271
+Node: Basic High Level1248952
+Ref: figure-general-flow1249234
+Ref: figure-process-flow1249919
+Ref: Basic High Level-Footnote-11253220
+Node: Basic Data Typing1253405
+Node: Glossary1256733
+Node: Copying1288571
+Node: GNU Free Documentation License1326114
+Node: Index1351234
End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index 6d0c731..3443aee 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -15935,7 +15935,8 @@ if an element in @code{SYMTAB} is an array.
Also, you may not use the @code{delete} statement with the
@code{SYMTAB} array.
-You may use an index for @code{SYMTAB} that is not a predefined identifier:
+Prior to @value{PVERSION} 5.0 of @command{gawk}, you could
+use an index for @code{SYMTAB} that was not a predefined identifier:
@example
SYMTAB["xxx"] = 5
@@ -15943,9 +15944,8 @@ print SYMTAB["xxx"]
@end example
@noindent
-This works as expected: in this case @code{SYMTAB} acts just like
-a regular array. The only difference is that you can't then delete
address@hidden"xxx"]}.
+This no longer works, instead producing a fatal error, as it led
+to rampant confusion.
@cindex Schorr, Andrew
The @code{SYMTAB} array is more interesting than it looks. Andrew Schorr
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=7c759ec96a0e5f6fac405e67e2b7299c0ac0a867
commit 7c759ec96a0e5f6fac405e67e2b7299c0ac0a867
Author: Arnold D. Robbins <address@hidden>
Date: Thu Nov 29 21:39:47 2018 +0200
Disable writing to arbitrary elements of SYMTAB.
diff --git a/NEWS b/NEWS
index a25c30d..b543b0f 100644
--- a/NEWS
+++ b/NEWS
@@ -18,6 +18,9 @@ Changes from 4.2.x to 5.0.0
4. PROCINFO["platform"] yields a string indicating the platform for
which gawk was compiled.
+5. Writing to elements of SYMTAB that are not variable names now
+ causes a fatal error.
+
Changes from 4.2.1 to 4.2.2
---------------------------
diff --git a/doc/ChangeLog b/doc/ChangeLog
index f31aae7..261388a 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,9 @@
+2018-11-29 Arnold D. Robbins <address@hidden>
+
+ * gawktexi.in (Auto-set): Document that you can no longer use
+ arbitrary indices in SYMTAB.
+ * gawk.1: Ditto.
+
2018-11-27 Arnold D. Robbins <address@hidden>
* gawktexi.in (Other Versions): Document GoAWK, an awk interpreter
diff --git a/doc/gawk.1 b/doc/gawk.1
index 5caff79..4964cb3 100644
--- a/doc/gawk.1
+++ b/doc/gawk.1
@@ -13,7 +13,7 @@
. if \w'\(rq' .ds rq "\(rq
. \}
.\}
-.TH GAWK 1 "Nov 26 2018" "Free Software Foundation" "Utility Commands"
+.TH GAWK 1 "Nov 29 2018" "Free Software Foundation" "Utility Commands"
.SH NAME
gawk \- pattern scanning and processing language
.SH SYNOPSIS
@@ -1425,7 +1425,8 @@ You may not use the
.B delete
statement with the
.B SYMTAB
-array.
+array, nor assign to elements with an index that is
+not a variable name.
.TP
.B TEXTDOMAIN
The text domain of the \*(AK program; used to find the localized
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index 9a21913..cc66753 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -15253,7 +15253,8 @@ if an element in @code{SYMTAB} is an array.
Also, you may not use the @code{delete} statement with the
@code{SYMTAB} array.
-You may use an index for @code{SYMTAB} that is not a predefined identifier:
+Prior to @value{PVERSION} 5.0 of @command{gawk}, you could
+use an index for @code{SYMTAB} that was not a predefined identifier:
@example
SYMTAB["xxx"] = 5
@@ -15261,9 +15262,8 @@ print SYMTAB["xxx"]
@end example
@noindent
-This works as expected: in this case @code{SYMTAB} acts just like
-a regular array. The only difference is that you can't then delete
address@hidden"xxx"]}.
+This no longer works, instead producing a fatal error, as it led
+to rampant confusion.
@cindex Schorr, Andrew
The @code{SYMTAB} array is more interesting than it looks. Andrew Schorr
diff --git a/interpret.h b/interpret.h
index 4381a92..6a1a08b 100644
--- a/interpret.h
+++ b/interpret.h
@@ -348,16 +348,19 @@ uninitialized_scalar:
* 3. Values that awk code stuck into SYMTAB not
related to variables (Node_value)
* For 1, since we are giving it a value, we have to
change the type to Node_var.
* For 1 and 2, we have to step through the Node_var to
get to the value.
- * For 3, we just us the value we got from
assoc_lookup(), above.
+ * For 3, we fatal out. This avoids confusion on things
like
+ * SYMTAB["a foo"] = 42 # variable with a space in its
name?
*/
if (t1 == func_table)
fatal(_("cannot assign to elements of
FUNCTAB"));
- else if ( t1 == symbol_table
- && ( (*lhs)->type == Node_var
+ else if (t1 == symbol_table) {
+ if (( (*lhs)->type == Node_var
|| (*lhs)->type == Node_var_new)) {
- update_global_values(); /* make sure
stuff like NF, NR, are up to date */
- (*lhs)->type = Node_var; /* in case was
Node_var_new */
- lhs = & ((*lhs)->var_value); /* extra level
of indirection */
+ update_global_values(); /* make
sure stuff like NF, NR, are up to date */
+ (*lhs)->type = Node_var; /* in
case was Node_var_new */
+ lhs = & ((*lhs)->var_value); /*
extra level of indirection */
+ } else
+ fatal(_("cannot assign to arbitrary
elements of SYMTAB"));
}
assert(set_idx == NULL);
@@ -658,22 +661,25 @@ mod:
/*
* Changing something in FUNCTAB is not allowed.
*
- * SYMTAB is a little more messy. Three kinds of
values may
- * be stored in SYMTAB:
+ * SYMTAB is a little more messy. Three possibilities
for SYMTAB:
* 1. Variables that don"t yet have a value
(Node_var_new)
* 2. Variables that have a value (Node_var)
* 3. Values that awk code stuck into SYMTAB not
related to variables (Node_value)
* For 1, since we are giving it a value, we have to
change the type to Node_var.
* For 1 and 2, we have to step through the Node_var to
get to the value.
- * For 3, we just us the value we got from
assoc_lookup(), above.
+ * For 3, we fatal out. This avoids confusion on things
like
+ * SYMTAB["a foo"] = 42 # variable with a space in its
name?
*/
if (t1 == func_table)
fatal(_("cannot assign to elements of
FUNCTAB"));
- else if ( t1 == symbol_table
- && ( (*lhs)->type == Node_var
+ else if (t1 == symbol_table) {
+ if (( (*lhs)->type == Node_var
|| (*lhs)->type == Node_var_new)) {
- (*lhs)->type = Node_var; /* in case was
Node_var_new */
- lhs = & ((*lhs)->var_value); /* extra level
of indirection */
+ update_global_values(); /* make
sure stuff like NF, NR, are up to date */
+ (*lhs)->type = Node_var; /* in
case was Node_var_new */
+ lhs = & ((*lhs)->var_value); /*
extra level of indirection */
+ } else
+ fatal(_("cannot assign to arbitrary
elements of SYMTAB"));
}
unref(*lhs);
diff --git a/test/Makefile.am b/test/Makefile.am
index e1ecc64..a44a194 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -2101,8 +2101,7 @@ charasbytes:
symtab6:
@echo $@
- @$(AWK) -d__$@ -f "$(srcdir)"/address@hidden
- @grep -v '^ENVIRON' __$@ | grep -v '^PROCINFO' > _$@ ; rm __$@
+ @$(AWK) -f "$(srcdir)"/address@hidden > _$@ 2>&1 || echo EXIT CODE: $$?
>>_$@
@-$(CMP) "$(srcdir)"/address@hidden _$@ && rm -f _$@
symtab8:
diff --git a/test/Makefile.in b/test/Makefile.in
index 1e3fe2e..4c19588 100644
--- a/test/Makefile.in
+++ b/test/Makefile.in
@@ -2549,8 +2549,7 @@ charasbytes:
symtab6:
@echo $@
- @$(AWK) -d__$@ -f "$(srcdir)"/address@hidden
- @grep -v '^ENVIRON' __$@ | grep -v '^PROCINFO' > _$@ ; rm __$@
+ @$(AWK) -f "$(srcdir)"/address@hidden > _$@ 2>&1 || echo EXIT CODE: $$?
>>_$@
@-$(CMP) "$(srcdir)"/address@hidden _$@ && rm -f _$@
symtab8:
diff --git a/test/symtab6.ok b/test/symtab6.ok
index 7de717a..23a1633 100644
--- a/test/symtab6.ok
+++ b/test/symtab6.ok
@@ -1,28 +1,2 @@
-ARGC: 1
-ARGIND: 0
-ARGV: array, 1 elements
-BINMODE: 0
-CONVFMT: "%.6g"
-ERRNO: ""
-FIELDWIDTHS: ""
-FILENAME: ""
-FNR: 0
-FPAT: "[^[:space:]]+"
-FS: " "
-FUNCTAB: array, 41 elements
-IGNORECASE: 0
-LINT: 0
-NF: 0
-NR: 0
-OFMT: "%.6g"
-OFS: " "
-ORS: "\n"
-PREC: 53
-RLENGTH: 0
-ROUNDMODE: "N"
-RS: "\n"
-RSTART: 0
-RT: ""
-SUBSEP: "\034"
-SYMTAB: array, 29 elements
-TEXTDOMAIN: "messages"
+gawk: ./symtab6.awk:1: fatal: cannot assign to arbitrary elements of SYMTAB
+EXIT CODE: 2
diff --git a/test/symtab7.ok b/test/symtab7.ok
index 2832883..37de1a4 100644
--- a/test/symtab7.ok
+++ b/test/symtab7.ok
@@ -1,2 +1,2 @@
-30
-40
+gawk: symtab7.awk:4: (FILENAME=- FNR=1) fatal: cannot assign to arbitrary
elements of SYMTAB
+EXIT CODE: 2
-----------------------------------------------------------------------
Summary of changes:
NEWS | 3 +
doc/ChangeLog | 6 +
doc/gawk.1 | 5 +-
doc/gawk.info | 747 +++++++++++++++++++++++++++----------------------------
doc/gawk.texi | 8 +-
doc/gawktexi.in | 8 +-
interpret.h | 32 ++-
test/Makefile.am | 3 +-
test/Makefile.in | 3 +-
test/symtab6.ok | 30 +--
test/symtab7.ok | 4 +-
11 files changed, 418 insertions(+), 431 deletions(-)
hooks/post-receive
--
gawk
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Arnold Robbins <=