Remove an obsolete exercise from the manual.

4 files changed, 479 insertions, 493 deletions

diff --git a/doc/ChangeLog b/doc/ChangeLog
index 7954eef1..5ea91aaf 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,5 +1,11 @@
 2019-06-21         Arnold D. Robbins     <arnold@skeeve.com>
 
+	* gawktexi.in (Input Exercises): Remove exercise that is
+	no longer relevant. Thanks to Mark Krauze <daburashka@ya.ru>
+	for pointing this out.
+
+2019-06-21         Arnold D. Robbins     <arnold@skeeve.com>
+
 	* texinfo.tex: Updated from GNULIB.
 
 2019-06-18         Arnold D. Robbins     <arnold@skeeve.com>
diff --git a/doc/gawk.info b/doc/gawk.info
index 1e8bf194..e5a52702 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -6393,12 +6393,6 @@ File: gawk.info,  Node: Input Exercises,  Prev: Input Summary,  Up: Reading File
      associated with each ballot item, and print the total votes,
      including abstentions, for each item.
 
-  2. *note Plain Getline::, presented a program to remove C-style
-     comments ('/* ... */') from the input.  That program does not work
-     if one comment ends on one line and another one starts later on the
-     same line.  That can be fixed by making one simple change.  What is
-     it?
-
 
 File: gawk.info,  Node: Printing,  Next: Expressions,  Prev: Reading Files,  Up: Top
 
@@ -37035,478 +37029,478 @@ Node: Retrying Input278719
 Node: Command-line directories279918
 Node: Input Summary280824
 Node: Input Exercises283996
-Node: Printing284724
-Node: Print286558
-Node: Print Examples288015
-Node: Output Separators290795
-Node: OFMT292812
-Node: Printf294168
-Node: Basic Printf294953
-Node: Control Letters296527
-Node: Format Modifiers301691
-Node: Printf Examples307706
-Node: Redirection310192
-Node: Special FD317033
-Ref: Special FD-Footnote-1320201
-Node: Special Files320275
-Node: Other Inherited Files320892
-Node: Special Network321893
-Node: Special Caveats322753
-Node: Close Files And Pipes323702
-Ref: table-close-pipe-return-values330609
-Ref: Close Files And Pipes-Footnote-1331422
-Ref: Close Files And Pipes-Footnote-2331570
-Node: Nonfatal331722
-Node: Output Summary334060
-Node: Output Exercises335282
-Node: Expressions335961
-Node: Values337149
-Node: Constants337827
-Node: Scalar Constants338518
-Ref: Scalar Constants-Footnote-1341042
-Node: Nondecimal-numbers341292
-Node: Regexp Constants344293
-Node: Using Constant Regexps344819
-Node: Standard Regexp Constants345441
-Node: Strong Regexp Constants348629
-Node: Variables351587
-Node: Using Variables352244
-Node: Assignment Options354154
-Node: Conversion356621
-Node: Strings And Numbers357145
-Ref: Strings And Numbers-Footnote-1360208
-Node: Locale influences conversions360317
-Ref: table-locale-affects363075
-Node: All Operators363693
-Node: Arithmetic Ops364322
-Node: Concatenation366828
-Ref: Concatenation-Footnote-1369675
-Node: Assignment Ops369782
-Ref: table-assign-ops374773
-Node: Increment Ops376086
-Node: Truth Values and Conditions379546
-Node: Truth Values380620
-Node: Typing and Comparison381668
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-Ref: Variable Typing-Footnote-1388951
-Ref: Variable Typing-Footnote-2389023
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-Node: POSIX String Comparison393014
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+Node: General Functions647641
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+Node: Cliff Random Function656632
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+Ref: Ordinal Functions-Footnote-2660963
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+Ref: Join Function-Footnote-1662943
+Node: Getlocaltime Function663143
+Node: Readfile Function666885
+Node: Shell Quoting668862
+Node: Data File Management670263
+Node: Filetrans Function670895
+Node: Rewind Function674991
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+Node: Uniq Program745874
+Node: Wc Program753495
+Ref: Wc Program-Footnote-1757750
+Node: Miscellaneous Programs757844
+Node: Dupword Program759057
+Node: Alarm Program761087
+Node: Translate Program765942
+Ref: Translate Program-Footnote-1770507
+Node: Labels Program770777
+Ref: Labels Program-Footnote-1774128
+Node: Word Sorting774212
+Node: History Sorting778284
+Node: Extract Program780119
+Node: Simple Sed788173
+Node: Igawk Program791247
+Ref: Igawk Program-Footnote-1805578
+Ref: Igawk Program-Footnote-2805780
+Ref: Igawk Program-Footnote-3805902
+Node: Anagram Program806017
+Node: Signature Program809079
+Node: Programs Summary810326
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+Node: Advanced Features815760
+Node: Nondecimal Data817750
+Node: Array Sorting819341
+Node: Controlling Array Traversal820041
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+Node: Array Sorting Functions828527
+Ref: Array Sorting Functions-Footnote-1833618
+Node: Two-way I/O833814
+Ref: Two-way I/O-Footnote-1841535
+Ref: Two-way I/O-Footnote-2841722
+Node: TCP/IP Networking841804
+Node: Profiling844922
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+Node: Explaining gettext857948
+Ref: Explaining gettext-Footnote-1863840
+Ref: Explaining gettext-Footnote-2864025
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+Ref: Programmer i18n-Footnote-1869139
+Node: Translator i18n869188
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+Ref: String Extraction-Footnote-1871114
+Node: Printf Ordering871200
+Ref: Printf Ordering-Footnote-1873986
+Node: I18N Portability874050
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+Node: I18N Example876569
+Ref: I18N Example-Footnote-1879844
+Ref: I18N Example-Footnote-2879917
+Node: Gawk I18N880026
+Node: I18N Summary880675
+Node: Debugger882016
+Node: Debugging883016
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+Node: Awk Debugging887841
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+Node: Sample Debugging Session888918
+Node: Debugger Invocation889452
+Node: Finding The Bug890838
+Node: List of Debugger Commands897312
+Node: Breakpoint Control898645
+Node: Debugger Execution Control902339
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+Node: Execution Stack909242
+Node: Debugger Info910879
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+Node: Namespaces924741
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+Node: Naming Rules930572
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+Node: Namespace Example933462
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+Ref: table-numeric-ranges944189
+Ref: table-floating-point-ranges944682
+Ref: Computer Arithmetic-Footnote-1945340
+Node: Math Definitions945397
+Ref: table-ieee-formats948713
+Ref: Math Definitions-Footnote-1949316
+Node: MPFR features949421
+Node: FP Math Caution951139
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+Node: Inexactness of computations952580
+Node: Inexact representation953540
+Node: Comparing FP Values954900
+Node: Errors accumulate956141
+Node: Getting Accuracy957574
+Node: Try To Round960284
+Node: Setting precision961183
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+Node: Setting the rounding mode963710
+Ref: table-gawk-rounding-modes964084
+Ref: Setting the rounding mode-Footnote-1968015
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+Node: Checking for MPFR971518
+Node: POSIX Floating Point Problems972992
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+Node: Floating point summary977315
+Node: Dynamic Extensions979505
+Node: Extension Intro981058
+Node: Plugin License982324
+Node: Extension Mechanism Outline983121
+Ref: figure-load-extension983560
+Ref: figure-register-new-function985125
+Ref: figure-call-new-function986217
+Node: Extension API Description988279
+Node: Extension API Functions Introduction989921
+Ref: table-api-std-headers991757
+Node: General Data Types995622
+Ref: General Data Types-Footnote-11003983
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+Ref: gawk-api-version1080260
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+Node: Changes from API V11088666
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+Ref: Using Internal File Ops-Footnote-11109548
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+Node: Extension Sample File Functions1111351
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+Node: Extension Sample Readdir1125845
+Ref: table-readdir-file-types1126734
+Node: Extension Sample Revout1127539
+Node: Extension Sample Rev2way1128128
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+Node: Extension Sample Time1131905
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+Node: Language History1141607
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+Node: SVR41145415
+Node: POSIX1146849
+Node: BTL1148229
+Node: POSIX/GNU1148958
+Node: Feature History1154736
+Node: Common Extensions1170782
+Node: Ranges and Locales1172065
+Ref: Ranges and Locales-Footnote-11176681
+Ref: Ranges and Locales-Footnote-21176708
+Ref: Ranges and Locales-Footnote-31176943
+Node: Contributors1177164
+Node: History summary1183117
+Node: Installation1184497
+Node: Gawk Distribution1185441
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+Node: Unix Installation1195006
+Node: Quick Installation1195688
+Node: Shell Startup Files1198102
+Node: Additional Configuration Options1199191
+Node: Configuration Philosophy1201506
+Node: Non-Unix Installation1203875
+Node: PC Installation1204335
+Node: PC Binary Installation1205173
+Node: PC Compiling1205608
+Node: PC Using1206725
+Node: Cygwin1210278
+Node: MSYS1211377
+Node: VMS Installation1211878
+Node: VMS Compilation1212669
+Ref: VMS Compilation-Footnote-11213898
+Node: VMS Dynamic Extensions1213956
+Node: VMS Installation Details1215641
+Node: VMS Running1217894
+Node: VMS GNV1222173
+Node: VMS Old Gawk1222908
+Node: Bugs1223379
+Node: Bug address1224042
+Node: Usenet1227024
+Node: Maintainers1228028
+Node: Other Versions1229289
+Node: Installation summary1236377
+Node: Notes1237579
+Node: Compatibility Mode1238373
+Node: Additions1239155
+Node: Accessing The Source1240080
+Node: Adding Code1241517
+Node: New Ports1247736
+Node: Derived Files1252111
+Ref: Derived Files-Footnote-11257771
+Ref: Derived Files-Footnote-21257806
+Ref: Derived Files-Footnote-31258404
+Node: Future Extensions1258518
+Node: Implementation Limitations1259176
+Node: Extension Design1260359
+Node: Old Extension Problems1261503
+Ref: Old Extension Problems-Footnote-11263021
+Node: Extension New Mechanism Goals1263078
+Ref: Extension New Mechanism Goals-Footnote-11266442
+Node: Extension Other Design Decisions1266631
+Node: Extension Future Growth1268744
+Node: Notes summary1269580
+Node: Basic Concepts1270738
+Node: Basic High Level1271419
+Ref: figure-general-flow1271701
+Ref: figure-process-flow1272386
+Ref: Basic High Level-Footnote-11275687
+Node: Basic Data Typing1275872
+Node: Glossary1279200
+Node: Copying1311038
+Node: GNU Free Documentation License1348581
+Node: Index1373701
 
 End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index d3f7d8dd..25fb3486 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -9306,13 +9306,6 @@ one voter's votes.  Come up with a way to define which columns are
 associated with each ballot item, and print the total votes,
 including abstentions, for each item.
 
-@item
-@ref{Plain Getline}, presented a program to remove C-style
-comments (@samp{/* @dots{} */}) from the input.  That program
-does not work if one comment ends on one line and another one
-starts later on the same line.
-That can be fixed by making one simple change. What is it?
-
 @end enumerate
 @c EXCLUDE END
 
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index 398e35da..c60b0238 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -8904,13 +8904,6 @@ one voter's votes.  Come up with a way to define which columns are
 associated with each ballot item, and print the total votes,
 including abstentions, for each item.
 
-@item
-@ref{Plain Getline}, presented a program to remove C-style
-comments (@samp{/* @dots{} */}) from the input.  That program
-does not work if one comment ends on one line and another one
-starts later on the same line.
-That can be fixed by making one simple change. What is it?
-
 @end enumerate
 @c EXCLUDE END