Small indexing fixes.

4 files changed, 275 insertions, 258 deletions

diff --git a/doc/ChangeLog b/doc/ChangeLog
index 6af2d876..36ed9bab 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,8 @@
+2019-01-03         Arnold D. Robbins     <arnold@skeeve.com>
+
+	* gawktexi.in: Some small indexing fixes. Thanks to Antonio
+	Giovanni Colombo for pointing them out.
+
 2018-12-18         Arnold D. Robbins     <arnold@skeeve.com>
 
 	* gawktexi.in: Added more indexing to the debugger chapter.
diff --git a/doc/gawk.info b/doc/gawk.info
index 9fba2e1f..af1d26c5 100644
--- a/doc/gawk.info
+++ b/doc/gawk.info
@@ -20871,9 +20871,9 @@ result as the final version of your program.
 recreate an 'awk' program, profiling and pretty-printing automatically
 disable 'gawk''s default optimizations.
 
-   Pretty printing also preserves the original format of numeric
-constants; if you used an octal or hexadecimal value in your source
-code, it will appear that way in the output.
+   Profiling and pretty-printing also preserve the original format of
+numeric constants; if you used an octal or hexadecimal value in your
+source code, it will appear that way in the output.
 
    ---------- Footnotes ----------
 
@@ -33373,7 +33373,6 @@ Index
 * arrays:                                Arrays.              (line   6)
 * arrays of arrays:                      Arrays of Arrays.    (line   6)
 * arrays, an example of using:           Array Example.       (line   6)
-* arrays, and IGNORECASE variable:       Array Intro.         (line 100)
 * arrays, as parameters to functions:    Pass By Value/Reference.
                                                               (line  44)
 * arrays, associative:                   Array Intro.         (line  48)
@@ -33387,6 +33386,7 @@ Index
                                                               (line  48)
 * arrays, elements, retrieving number of: String Functions.   (line  42)
 * arrays, for statement and:             Scanning an Array.   (line  20)
+* arrays, IGNORECASE variable and:       Array Intro.         (line 100)
 * arrays, indexing:                      Array Intro.         (line  48)
 * arrays, merging into strings:          Join Function.       (line   6)
 * arrays, multidimensional:              Multidimensional.    (line  10)
@@ -33560,7 +33560,6 @@ Index
 * BEGIN pattern:                         Field Separators.    (line  44)
 * BEGIN pattern <1>:                     BEGIN/END.           (line   6)
 * BEGIN pattern <2>:                     Using BEGIN/END.     (line   6)
-* BEGIN pattern, and profiling:          Profiling.           (line  62)
 * BEGIN pattern, assert() user-defined function and: Assert Function.
                                                               (line  83)
 * BEGIN pattern, Boolean patterns and:   Expression Patterns. (line  70)
@@ -33575,6 +33574,7 @@ Index
                                                               (line  20)
 * BEGIN pattern, operators and:          Using BEGIN/END.     (line  17)
 * BEGIN pattern, print statement and:    I/O And BEGIN/END.   (line  15)
+* BEGIN pattern, profiling and:          Profiling.           (line  62)
 * BEGIN pattern, pwcat program:          Passwd Functions.    (line 143)
 * BEGIN pattern, running awk programs and: Cut Program.       (line  63)
 * BEGIN pattern, TEXTDOMAIN variable and: Programmer i18n.    (line  60)
@@ -33698,13 +33698,13 @@ Index
 * caret (^), ^= operator:                Assignment Ops.      (line 129)
 * caret (^), ^= operator <1>:            Precedence.          (line  94)
 * case keyword:                          Switch Statement.    (line   6)
-* case sensitivity, and regexps:         User-modified.       (line  79)
-* case sensitivity, and string comparisons: User-modified.    (line  79)
 * case sensitivity, array indices and:   Array Intro.         (line 100)
 * case sensitivity, converting case:     String Functions.    (line 528)
 * case sensitivity, example programs:    Library Functions.   (line  53)
 * case sensitivity, gawk:                Case-sensitivity.    (line  26)
 * case sensitivity, regexps and:         Case-sensitivity.    (line   6)
+* case sensitivity, regexps and <1>:     User-modified.       (line  79)
+* case sensitivity, string comparisons and: User-modified.    (line  79)
 * CGI, awk scripts for:                  Options.             (line 139)
 * character classes, See bracket expressions: Regexp Operators.
                                                               (line  56)
@@ -33847,7 +33847,7 @@ Index
 * converting, strings to numbers <1>:    Bitwise Functions.   (line 109)
 * CONVFMT variable:                      Strings And Numbers. (line  29)
 * CONVFMT variable <1>:                  User-modified.       (line  30)
-* CONVFMT variable, and array subscripts: Numeric Array Subscripts.
+* CONVFMT variable, array subscripts and: Numeric Array Subscripts.
                                                               (line   6)
 * cookie:                                Glossary.            (line 255)
 * coprocesses:                           Redirection.         (line  96)
@@ -34237,7 +34237,6 @@ Index
                                                               (line  10)
 * END pattern:                           BEGIN/END.           (line   6)
 * END pattern <1>:                       Using BEGIN/END.     (line   6)
-* END pattern, and profiling:            Profiling.           (line  62)
 * END pattern, assert() user-defined function and: Assert Function.
                                                               (line  75)
 * END pattern, Boolean patterns and:     Expression Patterns. (line  70)
@@ -34248,6 +34247,7 @@ Index
                                                               (line  44)
 * END pattern, operators and:            Using BEGIN/END.     (line  17)
 * END pattern, print statement and:      I/O And BEGIN/END.   (line  15)
+* END pattern, profiling and:            Profiling.           (line  62)
 * ENDFILE pattern:                       BEGINFILE/ENDFILE.   (line   6)
 * ENDFILE pattern, Boolean patterns and: Expression Patterns. (line  70)
 * endfile() user-defined function:       Filetrans Function.  (line  62)
@@ -34823,8 +34823,8 @@ Index
 * ignore breakpoint:                     Breakpoint Control.  (line  87)
 * ignore debugger command:               Breakpoint Control.  (line  87)
 * IGNORECASE variable:                   User-modified.       (line  79)
-* IGNORECASE variable, and array indices: Array Intro.        (line 100)
-* IGNORECASE variable, and array sorting functions: Array Sorting Functions.
+* IGNORECASE variable, array indices and: Array Intro.        (line 100)
+* IGNORECASE variable, array sorting functions and: Array Sorting Functions.
                                                               (line  83)
 * IGNORECASE variable, in example programs: Library Functions.
                                                               (line  53)
@@ -35159,11 +35159,11 @@ Index
 * null strings <2>:                      Truth Values.        (line   6)
 * null strings <3>:                      Basic Data Typing.   (line  26)
 * null strings in gawk arguments, quoting and: Quoting.       (line  82)
-* null strings, and deleting array elements: Delete.          (line  27)
 * null strings, as array subscripts:     Uninitialized Subscripts.
                                                               (line  43)
 * null strings, converting numbers to strings: Strings And Numbers.
                                                               (line  21)
+* null strings, deleting array elements and: Delete.          (line  27)
 * null strings, matching:                String Functions.    (line 542)
 * number as string of bits:              Bitwise Functions.   (line 109)
 * number of array elements:              String Functions.    (line 201)
@@ -35403,6 +35403,9 @@ Index
 * predefined variables, -v option, setting with: Options.     (line  41)
 * predefined variables, conveying information: Auto-set.      (line   6)
 * predefined variables, user-modifiable: User-modified.       (line   6)
+* pretty printing:                       Options.             (line 235)
+* pretty printing <1>:                   Profiling.           (line 220)
+* pretty-printing, profiling, difference with: Profiling.     (line 227)
 * print debugger command:                Viewing And Changing Data.
                                                               (line  35)
 * print statement:                       Printing.            (line  16)
@@ -35448,15 +35451,16 @@ Index
 * PROCINFO array:                        Auto-set.            (line 148)
 * PROCINFO array <1>:                    Time Functions.      (line  49)
 * PROCINFO array <2>:                    Passwd Functions.    (line   6)
-* PROCINFO array, and communications via ptys: Two-way I/O.   (line 114)
-* PROCINFO array, and group membership:  Group Functions.     (line   6)
-* PROCINFO array, and user and group ID numbers: Id Program.  (line  15)
+* PROCINFO array, communications via ptys and: Two-way I/O.   (line 114)
+* PROCINFO array, group membership and:  Group Functions.     (line   6)
 * PROCINFO array, testing the field splitting: Passwd Functions.
                                                               (line 154)
+* PROCINFO array, user and group ID numbers and: Id Program.  (line  15)
 * PROCINFO, values of sorted_in:         Controlling Scanning.
                                                               (line  26)
 * profiling awk programs:                Profiling.           (line   6)
 * profiling awk programs, dynamically:   Profiling.           (line 177)
+* profiling, pretty-printing, difference with: Profiling.     (line 227)
 * program identifiers:                   Auto-set.            (line 193)
 * program, definition of:                Getting Started.     (line  21)
 * programming conventions, --non-decimal-data option: Nondecimal Data.
@@ -35917,7 +35921,7 @@ Index
 * subscripts in arrays, uninitialized variables as: Uninitialized Subscripts.
                                                               (line   6)
 * SUBSEP variable:                       User-modified.       (line 149)
-* SUBSEP variable, and multidimensional arrays: Multidimensional.
+* SUBSEP variable, multidimensional arrays and: Multidimensional.
                                                               (line  16)
 * substitute in string:                  String Functions.    (line  89)
 * substr:                                String Functions.    (line 487)
@@ -36540,219 +36544,219 @@ Ref: Two-way I/O-Footnote-1835796
 Ref: Two-way I/O-Footnote-2835983
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+Node: GNU Free Documentation License1325389
+Node: Index1350509
 
 End Tag Table
diff --git a/doc/gawk.texi b/doc/gawk.texi
index 4928769d..256e0c13 100644
--- a/doc/gawk.texi
+++ b/doc/gawk.texi
@@ -4128,6 +4128,7 @@ that this option may disappear in a future version of @command{gawk}.
 Force the use of the locale's decimal point character
 when parsing numeric input data (@pxref{Locales}).
 
+@cindex pretty printing
 @item @option{-o}[@var{file}]
 @itemx @option{--pretty-print}[@code{=}@var{file}]
 @cindex @option{-o} option
@@ -15345,8 +15346,8 @@ is to simply say @samp{FS = FS}, perhaps with an explanatory comment.
 @cindex @command{gawk}, @code{IGNORECASE} variable in
 @cindex @code{IGNORECASE} variable
 @cindex differences in @command{awk} and @command{gawk}, @code{IGNORECASE} variable
-@cindex case sensitivity, and string comparisons
-@cindex case sensitivity, and regexps
+@cindex case sensitivity, string comparisons and
+@cindex case sensitivity, regexps and
 @cindex regular expressions, case sensitivity
 @item IGNORECASE #
 If @code{IGNORECASE} is nonzero or non-null, then all string comparisons
@@ -16572,8 +16573,8 @@ automatically converts it to a string.
 
 @cindex @command{gawk}, @code{IGNORECASE} variable in
 @cindex case sensitivity, array indices and
-@cindex arrays, and @code{IGNORECASE} variable
-@cindex @code{IGNORECASE} variable, and array indices
+@cindex arrays, @code{IGNORECASE} variable and
+@cindex @code{IGNORECASE} variable, array indices and
 The value of @code{IGNORECASE} has no effect upon array subscripting.
 The identical string value used to store an array element must be used
 to retrieve it.
@@ -17056,7 +17057,7 @@ sorting arrays; see @ref{Array Sorting Functions}.
 @cindex numbers, as array subscripts
 @cindex arrays, numeric subscripts
 @cindex subscripts in arrays, numbers as
-@cindex @code{CONVFMT} variable, and array subscripts
+@cindex @code{CONVFMT} variable, array subscripts and
 An important aspect to remember about arrays is that @emph{array subscripts
 are always strings}.  When a numeric value is used as a subscript,
 it is converted to a string value before being used for subscripting
@@ -17213,7 +17214,7 @@ if (4 in foo)
     print "This will never be printed"
 @end example
 
-@cindex null strings, and deleting array elements
+@cindex null strings, deleting array elements and
 It is important to note that deleting an element is @emph{not} the
 same as assigning it a null value (the empty string, @code{""}).
 For example:
@@ -17308,7 +17309,7 @@ languages, including @command{awk}) to refer to an element of a
 two-dimensional array named @code{grid} is with
 @code{grid[@var{x},@var{y}]}.
 
-@cindex @code{SUBSEP} variable, and multidimensional arrays
+@cindex @code{SUBSEP} variable, multidimensional arrays and
 Multidimensional arrays are supported in @command{awk} through
 concatenation of indices into one string.
 @command{awk} converts the indices into strings
@@ -23735,7 +23736,7 @@ uses these functions.
 @cindex functions, library, group database@comma{} reading
 @cindex group database, reading
 @cindex database, group, reading
-@cindex @code{PROCINFO} array, and group membership
+@cindex @code{PROCINFO} array, group membership and
 @cindex @code{getgrent()} function (C library)
 @cindex @code{getgrent()} user-defined function
 @cindex groups@comma{} information about
@@ -25034,7 +25035,7 @@ $ @kbd{id}
 @print{} uid=1000(arnold) gid=1000(arnold) groups=1000(arnold),4(adm),7(lp),27(sudo)
 @end example
 
-@cindex @code{PROCINFO} array, and user and group ID numbers
+@cindex @code{PROCINFO} array, user and group ID numbers and
 This information is part of what is provided by @command{gawk}'s
 @code{PROCINFO} array (@pxref{Built-in Variables}).
 However, the @command{id} utility provides a more palatable output than just
@@ -28449,7 +28450,7 @@ both arrays use the values.
 @c Document It And Call It A Feature. Sigh.
 @cindex @command{gawk}, @code{IGNORECASE} variable in
 @cindex arrays, sorting, and @code{IGNORECASE} variable
-@cindex @code{IGNORECASE} variable, and array sorting functions
+@cindex @code{IGNORECASE} variable, array sorting functions and
 Because @code{IGNORECASE} affects string comparisons, the value
 of @code{IGNORECASE} also affects sorting for both @code{asort()} and @code{asorti()}.
 Note also that the locale's sorting order does @emph{not}
@@ -28697,7 +28698,7 @@ or @code{getline}.
 @end quotation
 
 @cindex @command{gawk}, @code{PROCINFO} array in
-@cindex @code{PROCINFO} array, and communications via ptys
+@cindex @code{PROCINFO} array, communications via ptys and
 You may also use pseudo-ttys (ptys) for
 two-way communication instead of pipes, if your system supports them.
 This is done on a per-command basis, by setting a special element
@@ -28982,8 +28983,8 @@ Here is the @file{awkprof.out} that results from running the
 illustrates that @command{awk} programmers sometimes get up very early
 in the morning to work):
 
-@cindex @code{BEGIN} pattern, and profiling
-@cindex @code{END} pattern, and profiling
+@cindex @code{BEGIN} pattern, profiling and
+@cindex @code{END} pattern, profiling and
 @example
     # gawk profile, created Mon Sep 29 05:16:21 2014
 
@@ -29213,6 +29214,7 @@ keyboard.  The @code{INT} signal is generated by the
 @kbd{Ctrl-c} or @kbd{Ctrl-BREAK} key, while the
 @code{QUIT} signal is generated by the @kbd{Ctrl-\} key.
 
+@cindex pretty printing
 Finally, @command{gawk} also accepts another option, @option{--pretty-print}.
 When called this way, @command{gawk} ``pretty-prints'' the program into
 @file{awkprof.out}, without any execution counts.
@@ -29222,6 +29224,8 @@ Once upon a time, the @option{--pretty-print} option would also run
 your program.  This is is no longer the case.
 @end quotation
 
+@cindex profiling, pretty-printing, difference with
+@cindex pretty-printing, profiling, difference with
 There is a significant difference between the output created when
 profiling, and that created when pretty-printing.  Pretty-printed output
 preserves the original comments that were in the program, although their
@@ -29247,7 +29251,7 @@ Because the internal representation of your program is formatted to
 recreate an @command{awk} program, profiling and pretty-printing
 automatically disable @command{gawk}'s default optimizations.
 
-Pretty printing also preserves the original format of numeric
+Profiling and pretty-printing also preserve the original format of numeric
 constants; if you used an octal or hexadecimal value in your source
 code, it will appear that way in the output.
 
diff --git a/doc/gawktexi.in b/doc/gawktexi.in
index f7540936..01eef9ad 100644
--- a/doc/gawktexi.in
+++ b/doc/gawktexi.in
@@ -4038,6 +4038,7 @@ that this option may disappear in a future version of @command{gawk}.
 Force the use of the locale's decimal point character
 when parsing numeric input data (@pxref{Locales}).
 
+@cindex pretty printing
 @item @option{-o}[@var{file}]
 @itemx @option{--pretty-print}[@code{=}@var{file}]
 @cindex @option{-o} option
@@ -14663,8 +14664,8 @@ is to simply say @samp{FS = FS}, perhaps with an explanatory comment.
 @cindex @command{gawk}, @code{IGNORECASE} variable in
 @cindex @code{IGNORECASE} variable
 @cindex differences in @command{awk} and @command{gawk}, @code{IGNORECASE} variable
-@cindex case sensitivity, and string comparisons
-@cindex case sensitivity, and regexps
+@cindex case sensitivity, string comparisons and
+@cindex case sensitivity, regexps and
 @cindex regular expressions, case sensitivity
 @item IGNORECASE #
 If @code{IGNORECASE} is nonzero or non-null, then all string comparisons
@@ -15844,8 +15845,8 @@ automatically converts it to a string.
 
 @cindex @command{gawk}, @code{IGNORECASE} variable in
 @cindex case sensitivity, array indices and
-@cindex arrays, and @code{IGNORECASE} variable
-@cindex @code{IGNORECASE} variable, and array indices
+@cindex arrays, @code{IGNORECASE} variable and
+@cindex @code{IGNORECASE} variable, array indices and
 The value of @code{IGNORECASE} has no effect upon array subscripting.
 The identical string value used to store an array element must be used
 to retrieve it.
@@ -16328,7 +16329,7 @@ sorting arrays; see @ref{Array Sorting Functions}.
 @cindex numbers, as array subscripts
 @cindex arrays, numeric subscripts
 @cindex subscripts in arrays, numbers as
-@cindex @code{CONVFMT} variable, and array subscripts
+@cindex @code{CONVFMT} variable, array subscripts and
 An important aspect to remember about arrays is that @emph{array subscripts
 are always strings}.  When a numeric value is used as a subscript,
 it is converted to a string value before being used for subscripting
@@ -16485,7 +16486,7 @@ if (4 in foo)
     print "This will never be printed"
 @end example
 
-@cindex null strings, and deleting array elements
+@cindex null strings, deleting array elements and
 It is important to note that deleting an element is @emph{not} the
 same as assigning it a null value (the empty string, @code{""}).
 For example:
@@ -16580,7 +16581,7 @@ languages, including @command{awk}) to refer to an element of a
 two-dimensional array named @code{grid} is with
 @code{grid[@var{x},@var{y}]}.
 
-@cindex @code{SUBSEP} variable, and multidimensional arrays
+@cindex @code{SUBSEP} variable, multidimensional arrays and
 Multidimensional arrays are supported in @command{awk} through
 concatenation of indices into one string.
 @command{awk} converts the indices into strings
@@ -22748,7 +22749,7 @@ uses these functions.
 @cindex functions, library, group database@comma{} reading
 @cindex group database, reading
 @cindex database, group, reading
-@cindex @code{PROCINFO} array, and group membership
+@cindex @code{PROCINFO} array, group membership and
 @cindex @code{getgrent()} function (C library)
 @cindex @code{getgrent()} user-defined function
 @cindex groups@comma{} information about
@@ -24047,7 +24048,7 @@ $ @kbd{id}
 @print{} uid=1000(arnold) gid=1000(arnold) groups=1000(arnold),4(adm),7(lp),27(sudo)
 @end example
 
-@cindex @code{PROCINFO} array, and user and group ID numbers
+@cindex @code{PROCINFO} array, user and group ID numbers and
 This information is part of what is provided by @command{gawk}'s
 @code{PROCINFO} array (@pxref{Built-in Variables}).
 However, the @command{id} utility provides a more palatable output than just
@@ -27462,7 +27463,7 @@ both arrays use the values.
 @c Document It And Call It A Feature. Sigh.
 @cindex @command{gawk}, @code{IGNORECASE} variable in
 @cindex arrays, sorting, and @code{IGNORECASE} variable
-@cindex @code{IGNORECASE} variable, and array sorting functions
+@cindex @code{IGNORECASE} variable, array sorting functions and
 Because @code{IGNORECASE} affects string comparisons, the value
 of @code{IGNORECASE} also affects sorting for both @code{asort()} and @code{asorti()}.
 Note also that the locale's sorting order does @emph{not}
@@ -27710,7 +27711,7 @@ or @code{getline}.
 @end quotation
 
 @cindex @command{gawk}, @code{PROCINFO} array in
-@cindex @code{PROCINFO} array, and communications via ptys
+@cindex @code{PROCINFO} array, communications via ptys and
 You may also use pseudo-ttys (ptys) for
 two-way communication instead of pipes, if your system supports them.
 This is done on a per-command basis, by setting a special element
@@ -27995,8 +27996,8 @@ Here is the @file{awkprof.out} that results from running the
 illustrates that @command{awk} programmers sometimes get up very early
 in the morning to work):
 
-@cindex @code{BEGIN} pattern, and profiling
-@cindex @code{END} pattern, and profiling
+@cindex @code{BEGIN} pattern, profiling and
+@cindex @code{END} pattern, profiling and
 @example
     # gawk profile, created Mon Sep 29 05:16:21 2014
 
@@ -28226,6 +28227,7 @@ keyboard.  The @code{INT} signal is generated by the
 @kbd{Ctrl-c} or @kbd{Ctrl-BREAK} key, while the
 @code{QUIT} signal is generated by the @kbd{Ctrl-\} key.
 
+@cindex pretty printing
 Finally, @command{gawk} also accepts another option, @option{--pretty-print}.
 When called this way, @command{gawk} ``pretty-prints'' the program into
 @file{awkprof.out}, without any execution counts.
@@ -28235,6 +28237,8 @@ Once upon a time, the @option{--pretty-print} option would also run
 your program.  This is is no longer the case.
 @end quotation
 
+@cindex profiling, pretty-printing, difference with
+@cindex pretty-printing, profiling, difference with
 There is a significant difference between the output created when
 profiling, and that created when pretty-printing.  Pretty-printed output
 preserves the original comments that were in the program, although their
@@ -28260,7 +28264,7 @@ Because the internal representation of your program is formatted to
 recreate an @command{awk} program, profiling and pretty-printing
 automatically disable @command{gawk}'s default optimizations.
 
-Pretty printing also preserves the original format of numeric
+Profiling and pretty-printing also preserve the original format of numeric
 constants; if you used an octal or hexadecimal value in your source
 code, it will appear that way in the output.