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[gawk-diffs] [SCM] gawk branch, gawk-4.2-stable, updated. gawk-4.1.0-296

From: Arnold Robbins
Subject: [gawk-diffs] [SCM] gawk branch, gawk-4.2-stable, updated. gawk-4.1.0-2965-g85c609c
Date: Thu, 10 May 2018 16:30:00 -0400 (EDT)

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The branch, gawk-4.2-stable has been updated
       via  85c609c42657b36dbfbde7528d9d6fd998da0fe4 (commit)
      from  9f5ec4e56b5e91b70c7f2148c6f3589453ab00f2 (commit)

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- Log -----------------------------------------------------------------

commit 85c609c42657b36dbfbde7528d9d6fd998da0fe4
Author: Arnold D. Robbins <address@hidden>
Date:   Thu May 10 16:29:35 2018 -0400

    Improve doc on [:space:] and [:blank:].

diff --git a/doc/ChangeLog b/doc/ChangeLog
index 0e0914c..d1194bc 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,10 @@
+2018-05-10         Arnold D. Robbins     <address@hidden>
+       * (Bracket Expressions): Document the full list
+       of characters in [:space:]. Thanks to Jannick <address@hidden>
+       for the suggestion.  Also note that current BWK awk gets [:blank:]
+       wrong, treating it like [:space:].
 2018-04-08         Arnold D. Robbins     <address@hidden>
        * gawk.1: Minor edit in the man page. Thanks to Howard
diff --git a/doc/ b/doc/
index 9e29bae..fc2c0f2 100644
--- a/doc/
+++ b/doc/
@@ -3848,8 +3848,8 @@ Class       Meaning
 '[:punct:]' Punctuation characters (characters that are not letters,
             digits, control characters, or space characters)
-'[:space:]' Space characters (such as space, TAB, and formfeed, to name
-            a few)
+'[:space:]' Space characters (these are: space, TAB, newline, carriage
+            return, formfeed and vertical tab)
 '[:upper:]' Uppercase alphabetic characters
 '[:xdigit:]'Characters that are hexadecimal digits
@@ -3868,6 +3868,11 @@ numerically between zero and 127, which is the defined 
range of the
 ASCII character set.  Use a complemented character list ('[^\x00-\x7F]')
 to match any single-byte characters that are not in the ASCII range.
+     NOTE: As of this writing (May 2018), Brian Kernighan's 'awk' treats
+     '[:blank:]' like '[:space:]', incorrectly matching more characters
+     than it should.  We have submitted a patch to him, and hope that
+     this will be fixed.
    Two additional special sequences can appear in bracket expressions.
 These apply to non-ASCII character sets, which can have single symbols
 (called "collating elements") that are represented with more than one
@@ -33494,13 +33499,13 @@ Index
 * bracket expressions, character classes: Bracket Expressions.
                                                               (line  40)
 * bracket expressions, collating elements: Bracket Expressions.
-                                                              (line  86)
+                                                              (line  91)
 * bracket expressions, collating symbols: Bracket Expressions.
-                                                              (line  93)
+                                                              (line  98)
 * bracket expressions, complemented:     Regexp Operators.    (line  64)
 * bracket expressions, equivalence classes: Bracket Expressions.
-                                                              (line  99)
-* bracket expressions, non-ASCII:        Bracket Expressions. (line  86)
+                                                              (line 104)
+* bracket expressions, non-ASCII:        Bracket Expressions. (line  91)
 * bracket expressions, range expressions: Bracket Expressions.
                                                               (line   6)
 * break debugger command:                Breakpoint Control.  (line  11)
@@ -33618,8 +33623,8 @@ Index
 * Close, Diane:                          Manual History.      (line  34)
 * Close, Diane <1>:                      Contributors.        (line  21)
 * Collado, Manuel:                       Acknowledgments.     (line  60)
-* collating elements:                    Bracket Expressions. (line  86)
-* collating symbols:                     Bracket Expressions. (line  93)
+* collating elements:                    Bracket Expressions. (line  91)
+* collating symbols:                     Bracket Expressions. (line  98)
 * Colombo, Antonio:                      Acknowledgments.     (line  60)
 * Colombo, Antonio <1>:                  Contributors.        (line 143)
 * columns, aligning:                     Print Examples.      (line  69)
@@ -34448,7 +34453,7 @@ Index
 * gawk, awk and <1>:                     This Manual.         (line  14)
 * gawk, bitwise operations in:           Bitwise Functions.   (line  40)
 * gawk, break statement in:              Break Statement.     (line  51)
-* gawk, character classes and:           Bracket Expressions. (line 108)
+* gawk, character classes and:           Bracket Expressions. (line 113)
 * gawk, coding style in:                 Adding Code.         (line  37)
 * gawk, command-line options, and regular expressions: GNU Regexp Operators.
                                                               (line  73)
@@ -34741,7 +34746,7 @@ Index
 * internationalization, localization <1>: Internationalization.
                                                               (line  13)
 * internationalization, localization, character classes: Bracket Expressions.
-                                                              (line 108)
+                                                              (line 113)
 * internationalization, localization, gawk and: Internationalization.
                                                               (line  13)
 * internationalization, localization, locale categories: Explaining gettext.
@@ -35210,7 +35215,7 @@ Index
 * POSIX awk, bracket expressions and, character classes: Bracket Expressions.
                                                               (line  40)
 * POSIX awk, bracket expressions and, character classes <1>: Bracket 
-                                                              (line 108)
+                                                              (line 113)
 * POSIX awk, break statement and:        Break Statement.     (line  51)
 * POSIX awk, changes in awk versions:    POSIX.               (line   6)
 * POSIX awk, continue statement and:     Continue Statement.  (line  44)
@@ -36081,518 +36086,518 @@ Ref: Regexp Operators-Footnote-1174490
 Ref: Regexp Operators-Footnote-2174637
 Node: Bracket Expressions174735
 Ref: table-char-classes177211
-Node: Leftmost Longest180348
-Node: Computed Regexps181651
-Node: GNU Regexp Operators185078
-Node: Case-sensitivity188757
-Ref: Case-sensitivity-Footnote-1191644
-Ref: Case-sensitivity-Footnote-2191879
-Node: Regexp Summary191987
-Node: Reading Files193453
-Node: Records195722
-Node: awk split records196455
-Node: gawk split records201386
-Ref: gawk split records-Footnote-1205926
-Node: Fields205963
-Node: Nonconstant Fields208704
-Ref: Nonconstant Fields-Footnote-1210940
-Node: Changing Fields211144
-Node: Field Separators217072
-Node: Default Field Splitting219770
-Node: Regexp Field Splitting220888
-Node: Single Character Fields224241
-Node: Command Line Field Separator225301
-Node: Full Line Fields228519
-Ref: Full Line Fields-Footnote-1230041
-Ref: Full Line Fields-Footnote-2230087
-Node: Field Splitting Summary230188
-Node: Constant Size232262
-Node: Fixed width data232994
-Node: Skipping intervening236461
-Node: Allowing trailing data237259
-Node: Fields with fixed data238296
-Node: Splitting By Content239814
-Ref: Splitting By Content-Footnote-1243464
-Node: Testing field creation243627
-Node: Multiple Line245252
-Ref: Multiple Line-Footnote-1251136
-Node: Getline251315
-Node: Plain Getline253784
-Node: Getline/Variable256425
-Node: Getline/File257576
-Node: Getline/Variable/File258964
-Ref: Getline/Variable/File-Footnote-1260569
-Node: Getline/Pipe260657
-Node: Getline/Variable/Pipe263364
-Node: Getline/Coprocess264499
-Node: Getline/Variable/Coprocess265766
-Node: Getline Notes266508
-Node: Getline Summary269305
-Ref: table-getline-variants269729
-Node: Read Timeout270477
-Ref: Read Timeout-Footnote-1274383
-Node: Retrying Input274441
-Node: Command-line directories275640
-Node: Input Summary276546
-Node: Input Exercises279718
-Node: Printing280446
-Node: Print282280
-Node: Print Examples283737
-Node: Output Separators286517
-Node: OFMT288534
-Node: Printf289890
-Node: Basic Printf290675
-Node: Control Letters292249
-Node: Format Modifiers296928
-Node: Printf Examples302943
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-Node: Special FD312270
-Ref: Special FD-Footnote-1315438
-Node: Special Files315512
-Node: Other Inherited Files316129
-Node: Special Network317130
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-Node: Close Files And Pipes318939
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-Ref: Close Files And Pipes-Footnote-1326659
-Ref: Close Files And Pipes-Footnote-2326807
-Node: Nonfatal326959
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-Node: Output Exercises330519
-Node: Expressions331198
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-Ref: Scalar Constants-Footnote-1334619
-Node: Nondecimal-numbers334869
-Node: Regexp Constants337870
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-Node: Standard Regexp Constants339018
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-Node: Using Variables345821
-Node: Assignment Options347731
-Node: Conversion349604
-Node: Strings And Numbers350128
-Ref: Strings And Numbers-Footnote-1353191
-Node: Locale influences conversions353300
-Ref: table-locale-affects356058
-Node: All Operators356676
-Node: Arithmetic Ops357305
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-Ref: Concatenation-Footnote-1362658
-Node: Assignment Ops362765
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-Node: Typing and Comparison374651
-Node: Variable Typing375471
-Ref: Variable Typing-Footnote-1381934
-Ref: Variable Typing-Footnote-2382006
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-Node: POSIX String Comparison385997
-Ref: POSIX String Comparison-Footnote-1387692
-Ref: POSIX String Comparison-Footnote-2387831
-Node: Boolean Ops387915
-Ref: Boolean Ops-Footnote-1392397
-Node: Conditional Exp392489
-Node: Function Calls394225
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-Node: Expressions Summary403393
-Node: Patterns and Actions405966
-Node: Pattern Overview407086
-Node: Regexp Patterns408763
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-Node: BEGIN/END416194
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-Ref: Using BEGIN/END-Footnote-1419691
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-Node: Next Statement445935
-Node: Nextfile Statement448318
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-Node: Built-in Variables453373
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-Node: Auto-set462273
-Ref: Auto-set-Footnote-1478572
-Ref: Auto-set-Footnote-2478778
-Node: ARGC and ARGV478834
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-Node: Arrays485477
-Node: Array Basics486806
-Node: Array Intro487650
-Ref: figure-array-elements489625
-Ref: Array Intro-Footnote-1492329
-Node: Reference to Elements492457
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-Node: Controlling Scanning500193
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-Node: Uninitialized Subscripts508092
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-Node: Arrays of Arrays517206
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-Ref: Numeric Functions-Footnote-1532209
-Ref: Numeric Functions-Footnote-2532566
-Ref: Numeric Functions-Footnote-3532614
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-Ref: String Functions-Footnote-1556544
-Ref: String Functions-Footnote-2556672
-Ref: String Functions-Footnote-3556920
-Node: Gory Details557007
-Ref: table-sub-escapes558798
-Ref: table-sub-proposed560317
-Ref: table-posix-sub561680
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-Node: I/O Functions564198
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-Ref: I/O Functions-Footnote-1572646
-Ref: I/O Functions-Footnote-2572794
-Node: Time Functions572914
-Ref: Time Functions-Footnote-1583585
-Ref: Time Functions-Footnote-2583653
-Ref: Time Functions-Footnote-3583811
-Ref: Time Functions-Footnote-4583922
-Ref: Time Functions-Footnote-5584034
-Ref: Time Functions-Footnote-6584261
-Node: Bitwise Functions584527
-Ref: table-bitwise-ops585121
-Ref: Bitwise Functions-Footnote-1591166
-Ref: Bitwise Functions-Footnote-2591339
-Node: Type Functions591530
-Node: I18N Functions594281
-Node: User-defined595932
-Node: Definition Syntax596737
-Ref: Definition Syntax-Footnote-1602424
-Node: Function Example602495
-Ref: Function Example-Footnote-1605417
-Node: Function Caveats605439
-Node: Calling A Function605957
-Node: Variable Scope606915
-Node: Pass By Value/Reference609909
-Node: Return Statement613408
-Node: Dynamic Typing616387
-Node: Indirect Calls617317
-Ref: Indirect Calls-Footnote-1627569
-Node: Functions Summary627697
-Node: Library Functions630402
-Ref: Library Functions-Footnote-1634009
-Ref: Library Functions-Footnote-2634152
-Node: Library Names634323
-Ref: Library Names-Footnote-1637783
-Ref: Library Names-Footnote-2638006
-Node: General Functions638092
-Node: Strtonum Function639195
-Node: Assert Function642217
-Node: Round Function645543
-Node: Cliff Random Function647083
-Node: Ordinal Functions648099
-Ref: Ordinal Functions-Footnote-1651162
-Ref: Ordinal Functions-Footnote-2651414
-Node: Join Function651624
-Ref: Join Function-Footnote-1653394
-Node: Getlocaltime Function653594
-Node: Readfile Function657336
-Node: Shell Quoting659313
-Node: Data File Management660714
-Node: Filetrans Function661346
-Node: Rewind Function665442
-Node: File Checking667352
-Ref: File Checking-Footnote-1668686
-Node: Empty Files668887
-Node: Ignoring Assigns670866
-Node: Getopt Function672416
-Ref: Getopt Function-Footnote-1683885
-Node: Passwd Functions684085
-Ref: Passwd Functions-Footnote-1692924
-Node: Group Functions693012
-Ref: Group Functions-Footnote-1700910
-Node: Walking Arrays701117
-Node: Library Functions Summary704125
-Node: Library Exercises705531
-Node: Sample Programs705996
-Node: Running Examples706766
-Node: Clones707494
-Node: Cut Program708718
-Node: Egrep Program718647
-Ref: Egrep Program-Footnote-1726159
-Node: Id Program726269
-Node: Split Program729949
-Ref: Split Program-Footnote-1733407
-Node: Tee Program733536
-Node: Uniq Program736326
-Node: Wc Program743752
-Ref: Wc Program-Footnote-1748007
-Node: Miscellaneous Programs748101
-Node: Dupword Program749314
-Node: Alarm Program751344
-Node: Translate Program756199
-Ref: Translate Program-Footnote-1760764
-Node: Labels Program761034
-Ref: Labels Program-Footnote-1764385
-Node: Word Sorting764469
-Node: History Sorting768541
-Node: Extract Program770376
-Node: Simple Sed777906
-Node: Igawk Program780980
-Ref: Igawk Program-Footnote-1795311
-Ref: Igawk Program-Footnote-2795513
-Ref: Igawk Program-Footnote-3795635
-Node: Anagram Program795750
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-Node: Programs Summary800059
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-Node: Advanced Features805493
-Node: Nondecimal Data807483
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-Ref: Controlling Array Traversal-Footnote-1818142
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-Node: Two-way I/O823547
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-Node: TCP/IP Networking830368
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-Node: Programmer i18n852734
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-Node: Translator i18n857732
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-Node: Gawk I18N867992
-Node: I18N Summary868637
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-Node: Awk Debugging875826
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-Node: Math Definitions918406
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-Node: Inexactness of computations925589
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-Node: PC Installation1175092
-Node: PC Binary Installation1175930
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-Node: Basic High Level1243062
-Ref: figure-general-flow1243344
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-Node: Basic Data Typing1247515
-Node: Glossary1250843
-Node: Copying1282681
-Node: GNU Free Documentation License1320224
-Node: Index1345344
+Node: Leftmost Longest180616
+Node: Computed Regexps181919
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+Node: Case-sensitivity189025
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+Node: Reading Files193721
+Node: Records195990
+Node: awk split records196723
+Node: gawk split records201654
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+Node: Fields206231
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+Ref: Full Line Fields-Footnote-2230355
+Node: Field Splitting Summary230456
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+Node: Allowing trailing data237527
+Node: Fields with fixed data238564
+Node: Splitting By Content240082
+Ref: Splitting By Content-Footnote-1243732
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+Node: Getline/Coprocess264767
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+Node: Getline Notes266776
+Node: Getline Summary269573
+Ref: table-getline-variants269997
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+Node: Retrying Input274709
+Node: Command-line directories275908
+Node: Input Summary276814
+Node: Input Exercises279986
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+Node: Other Inherited Files316397
+Node: Special Network317398
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+Ref: table-close-pipe-return-values326114
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+Node: Nonfatal327227
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+Node: ARGC and ARGV479102
+Node: Pattern Action Summary483315
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+Node: Array Basics487074
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+Node: Numeric Array Subscripts506176
+Node: Uninitialized Subscripts508360
+Node: Delete509979
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+Node: Multidimensional512788
+Node: Multiscanning515883
+Node: Arrays of Arrays517474
+Node: Arrays Summary522241
+Node: Functions524334
+Node: Built-in525372
+Node: Calling Built-in526453
+Node: Numeric Functions528449
+Ref: Numeric Functions-Footnote-1532477
+Ref: Numeric Functions-Footnote-2532834
+Ref: Numeric Functions-Footnote-3532882
+Node: String Functions533154
+Ref: String Functions-Footnote-1556812
+Ref: String Functions-Footnote-2556940
+Ref: String Functions-Footnote-3557188
+Node: Gory Details557275
+Ref: table-sub-escapes559066
+Ref: table-sub-proposed560585
+Ref: table-posix-sub561948
+Ref: table-gensub-escapes563489
+Ref: Gory Details-Footnote-1564312
+Node: I/O Functions564466
+Ref: table-system-return-values570934
+Ref: I/O Functions-Footnote-1572914
+Ref: I/O Functions-Footnote-2573062
+Node: Time Functions573182
+Ref: Time Functions-Footnote-1583853
+Ref: Time Functions-Footnote-2583921
+Ref: Time Functions-Footnote-3584079
+Ref: Time Functions-Footnote-4584190
+Ref: Time Functions-Footnote-5584302
+Ref: Time Functions-Footnote-6584529
+Node: Bitwise Functions584795
+Ref: table-bitwise-ops585389
+Ref: Bitwise Functions-Footnote-1591434
+Ref: Bitwise Functions-Footnote-2591607
+Node: Type Functions591798
+Node: I18N Functions594549
+Node: User-defined596200
+Node: Definition Syntax597005
+Ref: Definition Syntax-Footnote-1602692
+Node: Function Example602763
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+Node: Function Caveats605707
+Node: Calling A Function606225
+Node: Variable Scope607183
+Node: Pass By Value/Reference610177
+Node: Return Statement613676
+Node: Dynamic Typing616655
+Node: Indirect Calls617585
+Ref: Indirect Calls-Footnote-1627837
+Node: Functions Summary627965
+Node: Library Functions630670
+Ref: Library Functions-Footnote-1634277
+Ref: Library Functions-Footnote-2634420
+Node: Library Names634591
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+Ref: Library Names-Footnote-2638274
+Node: General Functions638360
+Node: Strtonum Function639463
+Node: Assert Function642485
+Node: Round Function645811
+Node: Cliff Random Function647351
+Node: Ordinal Functions648367
+Ref: Ordinal Functions-Footnote-1651430
+Ref: Ordinal Functions-Footnote-2651682
+Node: Join Function651892
+Ref: Join Function-Footnote-1653662
+Node: Getlocaltime Function653862
+Node: Readfile Function657604
+Node: Shell Quoting659581
+Node: Data File Management660982
+Node: Filetrans Function661614
+Node: Rewind Function665710
+Node: File Checking667620
+Ref: File Checking-Footnote-1668954
+Node: Empty Files669155
+Node: Ignoring Assigns671134
+Node: Getopt Function672684
+Ref: Getopt Function-Footnote-1684153
+Node: Passwd Functions684353
+Ref: Passwd Functions-Footnote-1693192
+Node: Group Functions693280
+Ref: Group Functions-Footnote-1701178
+Node: Walking Arrays701385
+Node: Library Functions Summary704393
+Node: Library Exercises705799
+Node: Sample Programs706264
+Node: Running Examples707034
+Node: Clones707762
+Node: Cut Program708986
+Node: Egrep Program718915
+Ref: Egrep Program-Footnote-1726427
+Node: Id Program726537
+Node: Split Program730217
+Ref: Split Program-Footnote-1733675
+Node: Tee Program733804
+Node: Uniq Program736594
+Node: Wc Program744020
+Ref: Wc Program-Footnote-1748275
+Node: Miscellaneous Programs748369
+Node: Dupword Program749582
+Node: Alarm Program751612
+Node: Translate Program756467
+Ref: Translate Program-Footnote-1761032
+Node: Labels Program761302
+Ref: Labels Program-Footnote-1764653
+Node: Word Sorting764737
+Node: History Sorting768809
+Node: Extract Program770644
+Node: Simple Sed778174
+Node: Igawk Program781248
+Ref: Igawk Program-Footnote-1795579
+Ref: Igawk Program-Footnote-2795781
+Ref: Igawk Program-Footnote-3795903
+Node: Anagram Program796018
+Node: Signature Program799080
+Node: Programs Summary800327
+Node: Programs Exercises801541
+Ref: Programs Exercises-Footnote-1805670
+Node: Advanced Features805761
+Node: Nondecimal Data807751
+Node: Array Sorting809342
+Node: Controlling Array Traversal810042
+Ref: Controlling Array Traversal-Footnote-1818410
+Node: Array Sorting Functions818528
+Ref: Array Sorting Functions-Footnote-1823619
+Node: Two-way I/O823815
+Ref: Two-way I/O-Footnote-1830367
+Ref: Two-way I/O-Footnote-2830554
+Node: TCP/IP Networking830636
+Node: Profiling833754
+Ref: Profiling-Footnote-1842426
+Node: Advanced Features Summary842749
+Node: Internationalization844593
+Node: I18N and L10N846073
+Node: Explaining gettext846760
+Ref: Explaining gettext-Footnote-1852652
+Ref: Explaining gettext-Footnote-2852837
+Node: Programmer i18n853002
+Ref: Programmer i18n-Footnote-1857951
+Node: Translator i18n858000
+Node: String Extraction858794
+Ref: String Extraction-Footnote-1859926
+Node: Printf Ordering860012
+Ref: Printf Ordering-Footnote-1862798
+Node: I18N Portability862862
+Ref: I18N Portability-Footnote-1865318
+Node: I18N Example865381
+Ref: I18N Example-Footnote-1868187
+Node: Gawk I18N868260
+Node: I18N Summary868905
+Node: Debugger870246
+Node: Debugging871269
+Node: Debugging Concepts871710
+Node: Debugging Terms873519
+Node: Awk Debugging876094
+Node: Sample Debugging Session877000
+Node: Debugger Invocation877534
+Node: Finding The Bug878920
+Node: List of Debugger Commands885398
+Node: Breakpoint Control886731
+Node: Debugger Execution Control890425
+Node: Viewing And Changing Data893787
+Node: Execution Stack897161
+Node: Debugger Info898798
+Node: Miscellaneous Debugger Commands902869
+Node: Readline Support907931
+Node: Limitations908827
+Node: Debugging Summary910936
+Node: Arbitrary Precision Arithmetic912215
+Node: Computer Arithmetic913700
+Ref: table-numeric-ranges917466
+Ref: table-floating-point-ranges917959
+Ref: Computer Arithmetic-Footnote-1918617
+Node: Math Definitions918674
+Ref: table-ieee-formats921990
+Ref: Math Definitions-Footnote-1922593
+Node: MPFR features922698
+Node: FP Math Caution924416
+Ref: FP Math Caution-Footnote-1925488
+Node: Inexactness of computations925857
+Node: Inexact representation926817
+Node: Comparing FP Values928177
+Node: Errors accumulate929259
+Node: Getting Accuracy930692
+Node: Try To Round933402
+Node: Setting precision934301
+Ref: table-predefined-precision-strings934998
+Node: Setting the rounding mode936828
+Ref: table-gawk-rounding-modes937202
+Ref: Setting the rounding mode-Footnote-1941133
+Node: Arbitrary Precision Integers941312
+Ref: Arbitrary Precision Integers-Footnote-1944487
+Node: Checking for MPFR944636
+Node: POSIX Floating Point Problems946110
+Ref: POSIX Floating Point Problems-Footnote-1949981
+Node: Floating point summary950019
+Node: Dynamic Extensions952209
+Node: Extension Intro953762
+Node: Plugin License955028
+Node: Extension Mechanism Outline955825
+Ref: figure-load-extension956264
+Ref: figure-register-new-function957829
+Ref: figure-call-new-function958921
+Node: Extension API Description960983
+Node: Extension API Functions Introduction962625
+Node: General Data Types968165
+Ref: General Data Types-Footnote-1976526
+Node: Memory Allocation Functions976825
+Ref: Memory Allocation Functions-Footnote-1981035
+Node: Constructor Functions981134
+Node: Registration Functions984720
+Node: Extension Functions985405
+Node: Exit Callback Functions990620
+Node: Extension Version String991870
+Node: Input Parsers992533
+Node: Output Wrappers1005254
+Node: Two-way processors1009766
+Node: Printing Messages1012031
+Ref: Printing Messages-Footnote-11013202
+Node: Updating ERRNO1013355
+Node: Requesting Values1014094
+Ref: table-value-types-returned1014831
+Node: Accessing Parameters1015767
+Node: Symbol Table Access1017002
+Node: Symbol table by name1017514
+Node: Symbol table by cookie1019303
+Ref: Symbol table by cookie-Footnote-11023488
+Node: Cached values1023552
+Ref: Cached values-Footnote-11027088
+Node: Array Manipulation1027241
+Ref: Array Manipulation-Footnote-11028332
+Node: Array Data Types1028369
+Ref: Array Data Types-Footnote-11031027
+Node: Array Functions1031119
+Node: Flattening Arrays1035617
+Node: Creating Arrays1042593
+Node: Redirection API1047360
+Node: Extension API Variables1050193
+Node: Extension Versioning1050904
+Ref: gawk-api-version1051333
+Node: Extension GMP/MPFR Versioning1053064
+Node: Extension API Informational Variables1054692
+Node: Extension API Boilerplate1055765
+Node: Changes from API V11059739
+Node: Finding Extensions1061311
+Node: Extension Example1061870
+Node: Internal File Description1062668
+Node: Internal File Ops1066748
+Ref: Internal File Ops-Footnote-11078098
+Node: Using Internal File Ops1078238
+Ref: Using Internal File Ops-Footnote-11080621
+Node: Extension Samples1080895
+Node: Extension Sample File Functions1082424
+Node: Extension Sample Fnmatch1090073
+Node: Extension Sample Fork1091560
+Node: Extension Sample Inplace1092778
+Node: Extension Sample Ord1095995
+Node: Extension Sample Readdir1096831
+Ref: table-readdir-file-types1097720
+Node: Extension Sample Revout1098525
+Node: Extension Sample Rev2way1099114
+Node: Extension Sample Read write array1099854
+Node: Extension Sample Readfile1101796
+Node: Extension Sample Time1102891
+Node: Extension Sample API Tests1104239
+Node: gawkextlib1104731
+Node: Extension summary1107649
+Node: Extension Exercises1111351
+Node: Language History1112849
+Node: V7/SVR3.11114505
+Node: SVR41116657
+Node: POSIX1118091
+Node: BTL1119471
+Node: POSIX/GNU1120200
+Node: Feature History1125978
+Node: Common Extensions1141837
+Node: Ranges and Locales1143120
+Ref: Ranges and Locales-Footnote-11147736
+Ref: Ranges and Locales-Footnote-21147763
+Ref: Ranges and Locales-Footnote-31147998
+Node: Contributors1148219
+Node: History summary1154164
+Node: Installation1155544
+Node: Gawk Distribution1156488
+Node: Getting1156972
+Node: Extracting1157935
+Node: Distribution contents1159573
+Node: Unix Installation1166053
+Node: Quick Installation1166735
+Node: Shell Startup Files1169149
+Node: Additional Configuration Options1170238
+Node: Configuration Philosophy1172531
+Node: Non-Unix Installation1174900
+Node: PC Installation1175360
+Node: PC Binary Installation1176198
+Node: PC Compiling1176633
+Node: PC Using1177750
+Node: Cygwin1180965
+Node: MSYS1182064
+Node: VMS Installation1182565
+Node: VMS Compilation1183356
+Ref: VMS Compilation-Footnote-11184585
+Node: VMS Dynamic Extensions1184643
+Node: VMS Installation Details1186328
+Node: VMS Running1188581
+Node: VMS GNV1192860
+Node: VMS Old Gawk1193595
+Node: Bugs1194066
+Node: Bug address1194729
+Node: Usenet1197521
+Node: Maintainers1198298
+Node: Other Versions1199559
+Node: Installation summary1206321
+Node: Notes1207523
+Node: Compatibility Mode1208388
+Node: Additions1209170
+Node: Accessing The Source1210095
+Node: Adding Code1211532
+Node: New Ports1217751
+Node: Derived Files1222239
+Ref: Derived Files-Footnote-11227885
+Ref: Derived Files-Footnote-21227920
+Ref: Derived Files-Footnote-31228518
+Node: Future Extensions1228632
+Node: Implementation Limitations1229290
+Node: Extension Design1230473
+Node: Old Extension Problems1231627
+Ref: Old Extension Problems-Footnote-11233145
+Node: Extension New Mechanism Goals1233202
+Ref: Extension New Mechanism Goals-Footnote-11236566
+Node: Extension Other Design Decisions1236755
+Node: Extension Future Growth1238868
+Node: Old Extension Mechanism1239704
+Node: Notes summary1241467
+Node: Basic Concepts1242649
+Node: Basic High Level1243330
+Ref: figure-general-flow1243612
+Ref: figure-process-flow1244297
+Ref: Basic High Level-Footnote-11247598
+Node: Basic Data Typing1247783
+Node: Glossary1251111
+Node: Copying1282949
+Node: GNU Free Documentation License1320492
+Node: Index1345612
 End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index 8d5eb5b..8484864 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -64,7 +64,7 @@
 @c applies to and all the info about who's publishing this edition
 @c These apply across the board.
address@hidden UPDATE-MONTH March, 2018
address@hidden UPDATE-MONTH May, 2018
 @set VERSION 4.2
@@ -5808,7 +5808,7 @@ POSIX standard.
 @item @code{[:print:]} @tab Printable characters (characters that are not 
control characters)
 @item @code{[:punct:]} @tab Punctuation characters (characters that are not 
letters, digits,
 control characters, or space characters)
address@hidden @code{[:space:]} @tab Space characters (such as space, TAB, and 
formfeed, to name a few)
address@hidden @code{[:space:]} @tab Space characters (these are: space, TAB, 
newline, carriage return, formfeed and vertical tab)
 @item @code{[:upper:]} @tab Uppercase alphabetic characters
 @item @code{[:xdigit:]} @tab Characters that are hexadecimal digits
 @end multitable
@@ -5833,6 +5833,13 @@ range of the ASCII character set.  Use a complemented 
character list
 (@samp{[^\x00-\x7F]}) to match any single-byte characters that are not
 in the ASCII range.
address@hidden NOTE
+As of this writing (May 2018), Brian Kernighan's @command{awk} treats
address@hidden:blank:]} like @code{[:space:]}, incorrectly matching
+more characters than it should.  We have submitted a patch to him,
+and hope that this will be fixed.
address@hidden quotation
 @cindex bracket expressions, collating elements
 @cindex bracket expressions, non-ASCII
 @cindex collating elements
diff --git a/doc/ b/doc/
index 8dada2d..4e67449 100644
--- a/doc/
+++ b/doc/
@@ -59,7 +59,7 @@
 @c applies to and all the info about who's publishing this edition
 @c These apply across the board.
address@hidden UPDATE-MONTH March, 2018
address@hidden UPDATE-MONTH May, 2018
 @set VERSION 4.2
@@ -5635,7 +5635,7 @@ POSIX standard.
 @item @code{[:print:]} @tab Printable characters (characters that are not 
control characters)
 @item @code{[:punct:]} @tab Punctuation characters (characters that are not 
letters, digits,
 control characters, or space characters)
address@hidden @code{[:space:]} @tab Space characters (such as space, TAB, and 
formfeed, to name a few)
address@hidden @code{[:space:]} @tab Space characters (these are: space, TAB, 
newline, carriage return, formfeed and vertical tab)
 @item @code{[:upper:]} @tab Uppercase alphabetic characters
 @item @code{[:xdigit:]} @tab Characters that are hexadecimal digits
 @end multitable
@@ -5660,6 +5660,13 @@ range of the ASCII character set.  Use a complemented 
character list
 (@samp{[^\x00-\x7F]}) to match any single-byte characters that are not
 in the ASCII range.
address@hidden NOTE
+As of this writing (May 2018), Brian Kernighan's @command{awk} treats
address@hidden:blank:]} like @code{[:space:]}, incorrectly matching
+more characters than it should.  We have submitted a patch to him,
+and hope that this will be fixed.
address@hidden quotation
 @cindex bracket expressions, collating elements
 @cindex bracket expressions, non-ASCII
 @cindex collating elements


Summary of changes:
 doc/ChangeLog   |    7 +
 doc/   | 1053 ++++++++++++++++++++++++++++---------------------------
 doc/gawk.texi   |   11 +-
 doc/ |   11 +-
 4 files changed, 554 insertions(+), 528 deletions(-)


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