Minor doc edits.

4 files changed, 479 insertions, 465 deletions

diff --git a/doc/ChangeLog b/doc/ChangeLog
index f4a6f19b..08c91bd7 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,7 @@
+2015-03-31         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* gawktexi.in: Minor edits.
+
 2015-03-27         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* gawktexi.in: Minor edits.
diff --git a/doc/gawk.info b/doc/gawk.info
index d0312ec6..a208f834 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -6005,11 +6005,11 @@ Auto-set::):
 
      PROCINFO["INPUT_NAME", "RETRY"] = 1
 
-   When this element exists, `gawk' checks the value of the system
-`errno' variable when an I/O error occurs.  If `errno' indicates a
-subsequent I/O attempt may succeed, `getline' instead returns -2 and
-further calls to `getline' may succeed.  This applies to the `errno'
-values `EAGAIN', `EWOULDBLOCK', `EINTR', or `ETIMEDOUT'.
+   When this element exists, `gawk' checks the value of the system (C
+language) `errno' variable when an I/O error occurs.  If `errno'
+indicates a subsequent I/O attempt may succeed, `getline' instead
+returns -2 and further calls to `getline' may succeed.  This applies to
+the `errno' values `EAGAIN', `EWOULDBLOCK', `EINTR', or `ETIMEDOUT'.
 
    This feature is useful in conjunction with `PROCINFO["INPUT_NAME",
 "READ_TIMEOUT"]' or situations where a file descriptor has been
@@ -26259,15 +26259,17 @@ project.
 
    * GD graphics library extension
 
+   * MPFR library extension (this provides access to a number of MPFR
+     functions that `gawk''s native MPFR support does not)
+
    * PDF extension
 
    * PostgreSQL extension
 
-   * MPFR library extension (this provides access to a number of MPFR
-     functions that `gawk''s native MPFR support does not)
-
    * Redis extension
 
+   * Select extension
+
    * XML parser extension, using the Expat
      (http://expat.sourceforge.net) XML parsing library
 
@@ -33053,7 +33055,7 @@ Index
                                                               (line  99)
 * exp:                                   Numeric Functions.   (line  33)
 * expand utility:                        Very Simple.         (line  73)
-* Expat XML parser library:              gawkextlib.          (line  35)
+* Expat XML parser library:              gawkextlib.          (line  37)
 * exponent:                              Numeric Functions.   (line  33)
 * expressions:                           Expressions.         (line   6)
 * expressions, as patterns:              Expression Patterns. (line   6)
@@ -33473,7 +33475,7 @@ Index
 * git utility <2>:                       Accessing The Source.
                                                               (line  10)
 * git utility <3>:                       Other Versions.      (line  29)
-* git utility:                           gawkextlib.          (line  29)
+* git utility:                           gawkextlib.          (line  31)
 * Git, use of for gawk source code:      Derived Files.       (line   6)
 * GNITS mailing list:                    Acknowledgments.     (line  52)
 * GNU awk, See gawk:                     Preface.             (line  51)
@@ -34997,452 +34999,452 @@ Ref: table-getline-variants261262
 Node: Read Timeout262091
 Ref: Read Timeout-Footnote-1265994
 Node: Retrying Input266052
-Node: Command-line directories267238
-Node: Input Summary268145
-Node: Input Exercises271530
-Node: Printing272258
-Node: Print274093
-Node: Print Examples275550
-Node: Output Separators278329
-Node: OFMT280347
-Node: Printf281702
-Node: Basic Printf282487
-Node: Control Letters284059
-Node: Format Modifiers288044
-Node: Printf Examples294050
-Node: Redirection296536
-Node: Special FD303374
-Ref: Special FD-Footnote-1306540
-Node: Special Files306614
-Node: Other Inherited Files307231
-Node: Special Network308231
-Node: Special Caveats309093
-Node: Close Files And Pipes310042
-Ref: Close Files And Pipes-Footnote-1317227
-Ref: Close Files And Pipes-Footnote-2317375
-Node: Nonfatal317525
-Node: Output Summary319850
-Node: Output Exercises321071
-Node: Expressions321751
-Node: Values322940
-Node: Constants323617
-Node: Scalar Constants324308
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-Node: Nondecimal-numbers325420
-Node: Regexp Constants328430
-Node: Using Constant Regexps328956
-Node: Variables332119
-Node: Using Variables332776
-Node: Assignment Options334687
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-Node: Strings And Numbers337086
-Ref: Strings And Numbers-Footnote-1340151
-Node: Locale influences conversions340260
-Ref: table-locale-affects343006
-Node: All Operators343598
-Node: Arithmetic Ops344227
-Node: Concatenation346732
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-Node: Assignment Ops349658
-Ref: table-assign-ops354637
-Node: Increment Ops355947
-Node: Truth Values and Conditions359378
-Node: Truth Values360461
-Node: Typing and Comparison361510
-Node: Variable Typing362326
-Node: Comparison Operators365993
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-Node: POSIX String Comparison369898
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-Node: Regexp Patterns391958
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-Node: Filetrans Function637370
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-Node: Math Definitions888655
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-Node: Non-Unix Installation1123272
-Node: PC Installation1123730
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-Node: Copying1233142
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+Ref: Indirect Calls-Footnote-1603613
+Node: Functions Summary603741
+Node: Library Functions606443
+Ref: Library Functions-Footnote-1610051
+Ref: Library Functions-Footnote-2610194
+Node: Library Names610365
+Ref: Library Names-Footnote-1613823
+Ref: Library Names-Footnote-2614046
+Node: General Functions614132
+Node: Strtonum Function615235
+Node: Assert Function618257
+Node: Round Function621581
+Node: Cliff Random Function623122
+Node: Ordinal Functions624138
+Ref: Ordinal Functions-Footnote-1627201
+Ref: Ordinal Functions-Footnote-2627453
+Node: Join Function627664
+Ref: Join Function-Footnote-1629434
+Node: Getlocaltime Function629634
+Node: Readfile Function633378
+Node: Shell Quoting635350
+Node: Data File Management636751
+Node: Filetrans Function637383
+Node: Rewind Function641479
+Node: File Checking642865
+Ref: File Checking-Footnote-1644198
+Node: Empty Files644399
+Node: Ignoring Assigns646378
+Node: Getopt Function647928
+Ref: Getopt Function-Footnote-1659392
+Node: Passwd Functions659592
+Ref: Passwd Functions-Footnote-1668432
+Node: Group Functions668520
+Ref: Group Functions-Footnote-1676417
+Node: Walking Arrays676622
+Node: Library Functions Summary679628
+Node: Library Exercises681030
+Node: Sample Programs682310
+Node: Running Examples683080
+Node: Clones683808
+Node: Cut Program685032
+Node: Egrep Program694752
+Ref: Egrep Program-Footnote-1702255
+Node: Id Program702365
+Node: Split Program706041
+Ref: Split Program-Footnote-1709495
+Node: Tee Program709623
+Node: Uniq Program712412
+Node: Wc Program719831
+Ref: Wc Program-Footnote-1724081
+Node: Miscellaneous Programs724175
+Node: Dupword Program725388
+Node: Alarm Program727419
+Node: Translate Program732224
+Ref: Translate Program-Footnote-1736787
+Node: Labels Program737057
+Ref: Labels Program-Footnote-1740408
+Node: Word Sorting740492
+Node: History Sorting744562
+Node: Extract Program746397
+Node: Simple Sed753921
+Node: Igawk Program756991
+Ref: Igawk Program-Footnote-1771317
+Ref: Igawk Program-Footnote-2771518
+Ref: Igawk Program-Footnote-3771640
+Node: Anagram Program771755
+Node: Signature Program774816
+Node: Programs Summary776063
+Node: Programs Exercises777284
+Ref: Programs Exercises-Footnote-1781415
+Node: Advanced Features781506
+Node: Nondecimal Data783488
+Node: Array Sorting785078
+Node: Controlling Array Traversal785778
+Ref: Controlling Array Traversal-Footnote-1794144
+Node: Array Sorting Functions794262
+Ref: Array Sorting Functions-Footnote-1798148
+Node: Two-way I/O798344
+Ref: Two-way I/O-Footnote-1803289
+Ref: Two-way I/O-Footnote-2803475
+Node: TCP/IP Networking803557
+Node: Profiling806429
+Node: Advanced Features Summary814700
+Node: Internationalization816633
+Node: I18N and L10N818113
+Node: Explaining gettext818799
+Ref: Explaining gettext-Footnote-1823824
+Ref: Explaining gettext-Footnote-2824008
+Node: Programmer i18n824173
+Ref: Programmer i18n-Footnote-1829049
+Node: Translator i18n829098
+Node: String Extraction829892
+Ref: String Extraction-Footnote-1831023
+Node: Printf Ordering831109
+Ref: Printf Ordering-Footnote-1833895
+Node: I18N Portability833959
+Ref: I18N Portability-Footnote-1836415
+Node: I18N Example836478
+Ref: I18N Example-Footnote-1839281
+Node: Gawk I18N839353
+Node: I18N Summary839997
+Node: Debugger841337
+Node: Debugging842359
+Node: Debugging Concepts842800
+Node: Debugging Terms844610
+Node: Awk Debugging847182
+Node: Sample Debugging Session848088
+Node: Debugger Invocation848622
+Node: Finding The Bug850007
+Node: List of Debugger Commands856486
+Node: Breakpoint Control857818
+Node: Debugger Execution Control861495
+Node: Viewing And Changing Data864854
+Node: Execution Stack868230
+Node: Debugger Info869865
+Node: Miscellaneous Debugger Commands873910
+Node: Readline Support878911
+Node: Limitations879805
+Node: Debugging Summary881920
+Node: Arbitrary Precision Arithmetic883094
+Node: Computer Arithmetic884510
+Ref: table-numeric-ranges888087
+Ref: Computer Arithmetic-Footnote-1888611
+Node: Math Definitions888668
+Ref: table-ieee-formats891963
+Ref: Math Definitions-Footnote-1892567
+Node: MPFR features892672
+Node: FP Math Caution894343
+Ref: FP Math Caution-Footnote-1895393
+Node: Inexactness of computations895762
+Node: Inexact representation896721
+Node: Comparing FP Values898079
+Node: Errors accumulate899161
+Node: Getting Accuracy900593
+Node: Try To Round903297
+Node: Setting precision904196
+Ref: table-predefined-precision-strings904880
+Node: Setting the rounding mode906709
+Ref: table-gawk-rounding-modes907073
+Ref: Setting the rounding mode-Footnote-1910525
+Node: Arbitrary Precision Integers910704
+Ref: Arbitrary Precision Integers-Footnote-1915602
+Node: POSIX Floating Point Problems915751
+Ref: POSIX Floating Point Problems-Footnote-1919630
+Node: Floating point summary919668
+Node: Dynamic Extensions921855
+Node: Extension Intro923407
+Node: Plugin License924672
+Node: Extension Mechanism Outline925469
+Ref: figure-load-extension925897
+Ref: figure-register-new-function927377
+Ref: figure-call-new-function928381
+Node: Extension API Description930368
+Node: Extension API Functions Introduction931902
+Node: General Data Types936771
+Ref: General Data Types-Footnote-1942671
+Node: Memory Allocation Functions942970
+Ref: Memory Allocation Functions-Footnote-1945809
+Node: Constructor Functions945908
+Node: Registration Functions947647
+Node: Extension Functions948332
+Node: Exit Callback Functions950629
+Node: Extension Version String951877
+Node: Input Parsers952540
+Node: Output Wrappers962415
+Node: Two-way processors966928
+Node: Printing Messages969191
+Ref: Printing Messages-Footnote-1970267
+Node: Updating `ERRNO'970419
+Node: Requesting Values971159
+Ref: table-value-types-returned971886
+Node: Accessing Parameters972843
+Node: Symbol Table Access974077
+Node: Symbol table by name974591
+Node: Symbol table by cookie976611
+Ref: Symbol table by cookie-Footnote-1980756
+Node: Cached values980819
+Ref: Cached values-Footnote-1984315
+Node: Array Manipulation984406
+Ref: Array Manipulation-Footnote-1985496
+Node: Array Data Types985533
+Ref: Array Data Types-Footnote-1988188
+Node: Array Functions988280
+Node: Flattening Arrays992139
+Node: Creating Arrays999041
+Node: Redirection API1003812
+Node: Extension API Variables1006637
+Node: Extension Versioning1007270
+Node: Extension API Informational Variables1009161
+Node: Extension API Boilerplate1010226
+Node: Finding Extensions1014035
+Node: Extension Example1014595
+Node: Internal File Description1015367
+Node: Internal File Ops1019434
+Ref: Internal File Ops-Footnote-11031185
+Node: Using Internal File Ops1031325
+Ref: Using Internal File Ops-Footnote-11033708
+Node: Extension Samples1033981
+Node: Extension Sample File Functions1035509
+Node: Extension Sample Fnmatch1043190
+Node: Extension Sample Fork1044678
+Node: Extension Sample Inplace1045893
+Node: Extension Sample Ord1047979
+Node: Extension Sample Readdir1048815
+Ref: table-readdir-file-types1049692
+Node: Extension Sample Revout1050503
+Node: Extension Sample Rev2way1051092
+Node: Extension Sample Read write array1051832
+Node: Extension Sample Readfile1053772
+Node: Extension Sample Time1054867
+Node: Extension Sample API Tests1056215
+Node: gawkextlib1056706
+Node: Extension summary1059407
+Node: Extension Exercises1063096
+Node: Language History1064592
+Node: V7/SVR3.11066248
+Node: SVR41068401
+Node: POSIX1069835
+Node: BTL1071216
+Node: POSIX/GNU1071947
+Node: Feature History1077783
+Node: Common Extensions1091577
+Node: Ranges and Locales1092949
+Ref: Ranges and Locales-Footnote-11097568
+Ref: Ranges and Locales-Footnote-21097595
+Ref: Ranges and Locales-Footnote-31097830
+Node: Contributors1098051
+Node: History summary1103591
+Node: Installation1104970
+Node: Gawk Distribution1105916
+Node: Getting1106400
+Node: Extracting1107223
+Node: Distribution contents1108860
+Node: Unix Installation1114962
+Node: Quick Installation1115645
+Node: Shell Startup Files1118056
+Node: Additional Configuration Options1119135
+Node: Configuration Philosophy1120939
+Node: Non-Unix Installation1123308
+Node: PC Installation1123766
+Node: PC Binary Installation1125086
+Node: PC Compiling1126934
+Ref: PC Compiling-Footnote-11129955
+Node: PC Testing1130064
+Node: PC Using1131240
+Node: Cygwin1135355
+Node: MSYS1136125
+Node: VMS Installation1136626
+Node: VMS Compilation1137418
+Ref: VMS Compilation-Footnote-11138647
+Node: VMS Dynamic Extensions1138705
+Node: VMS Installation Details1140389
+Node: VMS Running1142640
+Node: VMS GNV1145480
+Node: VMS Old Gawk1146215
+Node: Bugs1146685
+Node: Other Versions1150574
+Node: Installation summary1157008
+Node: Notes1158067
+Node: Compatibility Mode1158932
+Node: Additions1159714
+Node: Accessing The Source1160639
+Node: Adding Code1162074
+Node: New Ports1168231
+Node: Derived Files1172713
+Ref: Derived Files-Footnote-11178188
+Ref: Derived Files-Footnote-21178222
+Ref: Derived Files-Footnote-31178818
+Node: Future Extensions1178932
+Node: Implementation Limitations1179538
+Node: Extension Design1180786
+Node: Old Extension Problems1181940
+Ref: Old Extension Problems-Footnote-11183457
+Node: Extension New Mechanism Goals1183514
+Ref: Extension New Mechanism Goals-Footnote-11186874
+Node: Extension Other Design Decisions1187063
+Node: Extension Future Growth1189171
+Node: Old Extension Mechanism1190007
+Node: Notes summary1191769
+Node: Basic Concepts1192955
+Node: Basic High Level1193636
+Ref: figure-general-flow1193908
+Ref: figure-process-flow1194507
+Ref: Basic High Level-Footnote-11197736
+Node: Basic Data Typing1197921
+Node: Glossary1201249
+Node: Copying1233178
+Node: GNU Free Documentation License1270734
+Node: Index1295870
 
 End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index e9d987f0..e0b44fa1 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -8807,6 +8807,7 @@ PROCINFO["@var{input_name}", "RETRY"] = 1
 @end example
 
 When this element exists, @command{gawk} checks the value of the system
+(C language)
 @code{errno} variable when an I/O error occurs.  If @code{errno} indicates
 a subsequent I/O attempt may succeed, @code{getline} instead returns
 @minus{}2 and
@@ -35285,18 +35286,21 @@ As of this writing, there are seven extensions:
 GD graphics library extension
 
 @item
+MPFR library extension
+(this provides access to a number of MPFR functions that @command{gawk}'s
+native MPFR support does not)
+
+@item
 PDF extension
 
 @item
 PostgreSQL extension
 
 @item
-MPFR library extension
-(this provides access to a number of MPFR functions that @command{gawk}'s
-native MPFR support does not)
+Redis extension
 
 @item
-Redis extension
+Select extension
 
 @item
 XML parser extension, using the @uref{http://expat.sourceforge.net, Expat}
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index 178444a4..f8642fca 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -8407,6 +8407,7 @@ PROCINFO["@var{input_name}", "RETRY"] = 1
 @end example
 
 When this element exists, @command{gawk} checks the value of the system
+(C language)
 @code{errno} variable when an I/O error occurs.  If @code{errno} indicates
 a subsequent I/O attempt may succeed, @code{getline} instead returns
 @minus{}2 and
@@ -34376,18 +34377,21 @@ As of this writing, there are seven extensions:
 GD graphics library extension
 
 @item
+MPFR library extension
+(this provides access to a number of MPFR functions that @command{gawk}'s
+native MPFR support does not)
+
+@item
 PDF extension
 
 @item
 PostgreSQL extension
 
 @item
-MPFR library extension
-(this provides access to a number of MPFR functions that @command{gawk}'s
-native MPFR support does not)
+Redis extension
 
 @item
-Redis extension
+Select extension
 
 @item
 XML parser extension, using the @uref{http://expat.sourceforge.net, Expat}