This is Info file ./en/gcal.info, produced by Makeinfo version 1.67
from the input file ./en/gcal.texi.

INFO-DIR-SECTION GNU packages
START-INFO-DIR-ENTRY
* Gcal: (gcal).                       The GNU calendar program.
* tcal: (gcal)Invoking tcal.          Run Gcal with tomorrow's date.
* txt2gcal: (gcal)Invoking txt2gcal.  Convert text file to resource file.
* gcal2txt: (gcal)Invoking gcal2txt.  Convert resource file to text file.
END-INFO-DIR-ENTRY

  This file documents Gcal, a program for printing calendars.  Gcal
displays a calendar for a month or a year, eternal holiday lists and
fixed date lists, in many ways.  The program correctly omits the dates
that were skipped when the current Gregorian calendar replaced the
earlier Julian calendar.

  Copyright (C) 1994, 1995, 1996, 1997 Thomas Esken

  This is the second edition of the Gcal documentation.

  Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are
preserved on all copies.

  Permission is granted to copy and distribute modified versions of this
manual under the conditions for verbatim copying, provided that the
entire resulting derived work is distributed under the terms of a
permission notice identical to this one.

  Permission is granted to copy and distribute translations of this
manual into another language, under the above conditions for modified
versions, except that this permission notice may be stated in a
translation approved by the Free Software Foundation.

  Any suggestions, improvements, extensions, bug reports, donations,
proposals for contract work, and so forth are welcome!  Please send
them directly to my eMail address.  If you like my work, I'd appreciate
a postcard from you!

------------------------oOO      \\\_''/      OOo---------------------------
Thomas Esken               O     (/o-o\)     O  eMail: esken@uni-muenster.de
Im Hagenfeld 84                 ((  ^  ))       Phone: +49 251 232585
D-48147 Muenster; Germany    \____) ~ (____/    MotD : 2old2live, 2young2die


File: gcal.info,  Node: Concept Index,  Prev: Variable Index,  Up: Top

Concept Index
*************

* Menu:

* # separator character of ranges of days: Ranges of days.
* % special text starting character:     Special texts processed.
* %![ARGUMENT] special text, shell Kommando: Shell Command.
* %#[DATE] special text, day number <1>: Special Texts Summary.
* %#[DATE] special text, day number:     Day number.
* %&[DATE] special text, day number:     Special Texts Summary.
* %&[DATE] special text, Day number:     Day number.
* %([DATE] special text, weekday number <1>: Special Texts Summary.
* %([DATE] special text, weekday number: Weekday.
* %)[DATE] special text, weekday number <1>: Weekday.
* %)[DATE] special text, weekday number: Special Texts Summary.
* %*[DATE] special text, day number <1>: Special Texts Summary.
* %*[DATE] special text, day number:     Day number.
* %+[DATE] special text, day number <1>: Special Texts Summary.
* %+[DATE] special text, day number:     Day number.
* %,[DATE] special text, biorhythm <1>:  Biorhythm.
* %,[DATE] special text, biorhythm:      Special Texts Summary.
* %-[DATE] special text, moonphase <1>:  Special Texts Summary.
* %-[DATE] special text, moonphase:      Moonphase.
* %0 special text, end of highlighting sequence 1 or 2 <1>: Highlighting.
* %0 special text, end of highlighting sequence 1 or 2: Special Texts Summary.
* %1 special text, start of highlighting sequence 1 <1>: Highlighting.
* %1 special text, start of highlighting sequence 1: Special Texts Summary.
* %2 special text, end of highlighting sequence 1 <1>: Special Texts Summary.
* %2 special text, end of highlighting sequence 1: Highlighting.
* %3 special text, start of highlighting sequence 2 <1>: Highlighting.
* %3 special text, start of highlighting sequence 2: Special Texts Summary.
* %4 special text, end of highlighting sequence 2 <1>: Highlighting.
* %4 special text, end of highlighting sequence 2: Special Texts Summary.
* %5 special text, start of highlighting sequence 1 <1>: Highlighting.
* %5 special text, start of highlighting sequence 1: Special Texts Summary.
* %6 special text, end of highlighting sequence 1 <1>: Highlighting.
* %6 special text, end of highlighting sequence 1: Special Texts Summary.
* %7 special text, start of highlighting sequence 2 <1>: Special Texts Summary.
* %7 special text, start of highlighting sequence 2: Highlighting.
* %8 special text, end of highlighting sequence 2 <1>: Highlighting.
* %8 special text, end of highlighting sequence 2: Special Texts Summary.
* %9 special text, start of highlighting sequence 1 or 2 <1>: Highlighting.
* %9 special text, start of highlighting sequence 1 or 2: Special Texts Summary.
* %:[DATE] special text, moonphase text graphics <1>: Special Texts Summary.
* %:[DATE] special text, moonphase text graphics: Moonphase.
* %;[DATE] special text, biorhythm text graphics <1>: Biorhythm.
* %;[DATE] special text, biorhythm text graphics: Special Texts Summary.
* %<[DATE] special text, weekday number <1>: Special Texts Summary.
* %<[DATE] special text, weekday number: Weekday.
* %=[DATE] special text, year <1>:       Year.
* %=[DATE] special text, year:           Special Texts Summary.
* %>[DATE] special text, weekday number <1>: Special Texts Summary.
* %>[DATE] special text, weekday number: Weekday.
* %?... special texts for date exclusion: Exclusions.
* %?... special texts for text replacement: Replacements.
* %?... special texts, description of all: Special Texts.
* %?... special texts, short-list of all: Special Texts Summary.
* %?... special texts, summary of all:   Special Texts Summary.
* %?... spezial texts:                   Special texts processed.
* %[[DATE] special text, weekday number <1>: Weekday.
* %[[DATE] special text, weekday number: Special Texts Summary.
* %][DATE] special text, weekday number <1>: Special Texts Summary.
* %][DATE] special text, weekday number: Weekday.
* %_[DATE] special text, moonphase <1>:  Special Texts Summary.
* %_[DATE] special text, moonphase:      Moonphase.
* %A special text, exclusive Monday <1>: Special Texts Summary.
* %A special text, exclusive Monday:     Exclusive day period.
* %a special text, inclusive Monday <1>: Inclusive day period.
* %a special text, inclusive Monday:     Special Texts Summary.
* %B[DATE] special text, birthday:       Difference value.
* %b[DATE] special text, birthday:       Difference value.
* %B[DATE] special text, birthday:       Special Texts Summary.
* %b[DATE] special text, birthday:       Special Texts Summary.
* %C special text, exclusive Tuesday <1>: Special Texts Summary.
* %C special text, exclusive Tuesday:    Exclusive day period.
* %c special text, inclusive Tuesday <1>: Special Texts Summary.
* %c special text, inclusive Tuesday:    Inclusive day period.
* %d special text, relative day number <1>: Special Texts Summary.
* %d special text, relative day number:  Other difference values.
* %D[DATE] special text, day <1>:        Special Texts Summary.
* %D[DATE] special text, day:            Day.
* %DATE actual date modifier:            Actual date modifier.
* %DATE, option:                         Command line arguments.
* %DATE, Option:                         Actual date modifier.
* %E[DATE] special text, weekday number <1>: Weekday.
* %E[DATE] special text, weekday number: Special Texts Summary.
* %e[DATE][#[DATE]] special text, exclusive date period: Exclusive date period.
* %F special text, exclusive Wednesday <1>: Special Texts Summary.
* %F special text, exclusive Wednesday:  Exclusive day period.
* %f special text, inclusive Wednesday <1>: Special Texts Summary.
* %f special text, inclusive Wednesday:  Inclusive day period.
* %G special text, exclusive Thursday <1>: Special Texts Summary.
* %G special text, exclusive Thursday:   Exclusive day period.
* %g special text, inclusive Thursday <1>: Special Texts Summary.
* %g special text, inclusive Thursday:   Inclusive day period.
* %H special text, exclusive Friday <1>: Exclusive day period.
* %H special text, exclusive Friday:     Special Texts Summary.
* %h special text, inclusive Friday <1>: Special Texts Summary.
* %h special text, inclusive Friday:     Inclusive day period.
* %I[DATE] special text, weekday number <1>: Special Texts Summary.
* %I[DATE] special text, weekday number: Weekday.
* %i[DATE][#[DATE]] special text, inclusive date period: Inclusive date period.
* %j[ARGUMENT] special text, Julian day number: Julian day number.
* %J[DATE] special text, weekday number <1>: Special Texts Summary.
* %J[DATE] special text, weekday number: Weekday.
* %K[DATE] special text, 2-letter weekday name <1>: Special Texts Summary.
* %K[DATE] special text, 2-letter weekday name: Weekday name.
* %k[DATE] special text, week:           Week.
* %L special text, exclusive Saturday <1>: Exclusive day period.
* %L special text, exclusive Saturday:   Special Texts Summary.
* %l special text, inclusive Saturday <1>: Special Texts Summary.
* %l special text, inclusive Saturday:   Inclusive day period.
* %m special text, relative month number <1>: Other difference values.
* %m special text, relative month number: Special Texts Summary.
* %M[DATE] special text, complete month name <1>: Month name.
* %M[DATE] special text, complete month name: Special Texts Summary.
* %n[ARGUMENT] special text, textual date: Textual date.
* %N[DATE] special text, day <1>:        Special Texts Summary.
* %N[DATE] special text, day:            Day.
* %O[DATE] special text, 3-letter weekday name <1>: Weekday name.
* %O[DATE] special text, 3-letter weekday name: Special Texts Summary.
* %o[DATE] special text, complete weekday name <1>: Weekday name.
* %o[DATE] special text, complete weekday name: Special Texts Summary.
* %P special text, exclusive Sunday <1>: Special Texts Summary.
* %P special text, exclusive Sunday:     Exclusive day period.
* %p special text, inclusive Sunday <1>: Inclusive day period.
* %p special text, inclusive Sunday:     Special Texts Summary.
* %Q special text, exclusive Monday...Thursday <1>: Exclusive day period.
* %Q special text, exclusive Monday...Thursday: Special Texts Summary.
* %q special text, inclusive Monday...Thursday <1>: Special Texts Summary.
* %q special text, inclusive Monday...Thursday: Inclusive day period.
* %R special text, exclusive Monday...Friday <1>: Special Texts Summary.
* %R special text, exclusive Monday...Friday: Exclusive day period.
* %r special text, inclusive Monday...Friday <1>: Inclusive day period.
* %r special text, inclusive Monday...Friday: Special Texts Summary.
* %s[DATE] special text, day <1>:        Special Texts Summary.
* %s[DATE] special text, day:            Day.
* %S[DATE] special text, weekday number <1>: Weekday.
* %S[DATE] special text, weekday number: Special Texts Summary.
* %t12 special text:                     Actual time.
* %t24 special text:                     Actual time.
* %t[ARGUMENT] special text, actual time: Actual time.
* %T[DATE] special text, 3-letter month name <1>: Special Texts Summary.
* %T[DATE] special text, 3-letter month name: Month name.
* %u[DATE] special text, day <1>:        Special Texts Summary.
* %u[DATE] special text, day:            Day.
* %U[DATE] special text, month <1>:      Special Texts Summary.
* %U[DATE] special text, month:          Month.
* %V special text, exclusive legal holidays <1>: Special Texts Summary.
* %V special text, exclusive legal holidays: Exclusive day period.
* %v special text, inclusive legal holidays <1>: Inclusive day period.
* %v special text, inclusive legal holidays: Special Texts Summary.
* %w special text, relative week number <1>: Special Texts Summary.
* %w special text, relative week number: Other difference values.
* %W[DATE] special text, Month:          Month.
* %W[DATE] special text, month:          Special Texts Summary.
* %X special text, exclusive all holidays <1>: Special Texts Summary.
* %X special text, exclusive all holidays: Exclusive day period.
* %x special text, inclusive all holidays <1>: Inclusive day period.
* %x special text, inclusive all holidays: Special Texts Summary.
* %y special text, relative year number <1>: Special Texts Summary.
* %y special text, relative year number: Other difference values.
* %Y[DATE] special text, year <1>:       Year.
* %Y[DATE] special text, year:           Special Texts Summary.
* %yDATE special text, relative year number <1>: Difference value.
* %yDATE special text, relative year number: Special Texts Summary.
* %z[DATE] special text, Month:          Month.
* %Z[DATE] special text, Month:          Month.
* %Z[DATE] special text, month:          Special Texts Summary.
* %z[DATE] special text, month:          Special Texts Summary.
* %{[DATE] special text, weekday number <1>: Special Texts Summary.
* %{[DATE] special text, weekday number: Weekday.
* %}[DATE] special text, weekday number <1>: Weekday.
* %}[DATE] special text, weekday number: Special Texts Summary.
* + separator character <1>:             Calendar options.
* + separator character:                 Fixed date options.
* , separator character of lists of days: Lists of days.
* - switch character:                    Command line arguments.
* -- switch character:                   Command line arguments.
* .gcalrc resource file:                 Resource file.
* .N appearance factor of days:          Appearance factor of days.
* / switch character:                    Command line arguments.
* 2-letter weekday name, %K[DATE] special text: Weekday name.
* 3-letter month name, %T[DATE] special text: Month name.
* 3-letter weekday name, %O[DATE] special text: Weekday name.
* 3-Month mode command . YYYY, special:  3-Month mode commands.
* 3-Month mode command .+ YYYY, special: 3-Month mode commands.
* 3-Month mode command .+, special:      3-Month mode commands.
* 3-Month mode command ., special:       3-Month mode commands.
* 3-Month mode command .- YYYY, special: 3-Month mode commands.
* 3-Month mode command .-, special:      3-Month mode commands.
* 3-Month mode command .. YYYY, special: 3-Month mode commands.
* 3-Month mode command .., special:      3-Month mode commands.
* 3-Month mode commands <1>:             Commands.
* 3-Month mode commands:                 3-Month mode commands.
* 3-Month mode, limitations <1>:         Further date part attributes.
* 3-Month mode, limitations:             Date variables.
* : separator character <1>:             Fixed date options.
* : separator character <2>:             Global options.
* : separator character:                 Fixed date options.
* :N repetition factor of days:          Repetition factor of days.
* ; comment character <1>:               Response file.
* ; comment character:                   Comment line.
* ; remark character:                    Comment line.
* @FILE response file:                   Response file.
* @FILE, option:                         Command line arguments.
* @FILE, Option:                         Response file.
* \ depreciation character <1>:          Fixed date options.
* \ depreciation character <2>:          Text variables.
* \ depreciation character <3>:          Fixed date options.
* \ depreciation character <4>:          Text part of a line.
* \ depreciation character <5>:          Fixed date options.
* \ depreciation character <6>:          Special texts processed.
* \ depreciation character:              Fixed date options.
* \ line continuation character:         Text part of a line.
* \ protection character <1>:            Fixed date options.
* \ protection character <2>:            Text part of a line.
* \ protection character <3>:            Fixed date options.
* \ protection character <4>:            Special texts processed.
* \ protection character <5>:            Text variables.
* \ protection character <6>:            Fixed date options.
* \ protection character:                Text part of a line.
* \' regexp operator:                    Regexp Operators.
* \< regexp operator:                    Regexp Operators.
* \> regexp operator:                    Regexp Operators.
* \` regexp operator:                    Regexp Operators.
* \B regexp operator:                    Regexp Operators.
* \b regexp operator:                    Regexp Operators.
* \W regexp operator:                    Regexp Operators.
* \w regexp operator:                    Regexp Operators.
* ^ line break up character <1>:         Fixed date options.
* ^ line break up character:             Text part of a line.
* _ pseudo space character:              Fixed date options.
* Activate fixed date function:          Fixed date options.
* Actual date modifier, %DATE:           Actual date modifier.
* Actual directory:                      Resource file.
* Actual system time, display the:       Actual time.
* Actual time %t[ARGUMENT] special text <1>: Special Texts Summary.
* Actual time %t[ARGUMENT] special text: Actual time.
* Addition by days, date variables:      Date variables.
* Addition by weekdays, date variables:  Date variables.
* Additional resource file:              Fixed date options.
* Additional resource file line:         Fixed date options.
* Age value:                             Difference value.
* Alternative date format in calendar sheet: Calendar options.
* Alternative date format in eternal holiday list: Calendar options.
* Alternative date format in fixed date list: Calendar options.
* Anchors in regexps:                    Regexp Operators.
* Appearance factor of days, .N:         Appearance factor of days.
* Appearance factors of days, examples to: Appearance factor of days.
* Appearance factors of days, valid date parts of: Appearance factor of days.
* Arguments of command line:             Command line arguments.
* Aspects in Internationalization:       Internationalization.
* Assignments to date variables <1>:     Fixed date options.
* Assignments to date variables:         Date variables.
* Assignments to text variables <1>:     Text variables.
* Assignments to text variables:         Fixed date options.
* Biorhythm %?[DATE] special texts <1>:  Biorhythm.
* Biorhythm %?[DATE] special texts:      Special Texts Summary.
* Biorhythm text graphics, %;[DATE] special text: Biorhythm.
* Biorhythm, %,[DATE] special text:      Biorhythm.
* Biorhythm, critical day:               Biorhythm.
* Biorhythm, negative day:               Biorhythm.
* Biorhythm, positive day:               Biorhythm.
* Birthday, %b[DATE] special text:       Difference value.
* Birthday, %B[DATE] special text:       Difference value.
* Buffer matching operators, regexp:     Regexp Operators.
* C Preprocessor symbol USE_PAGER:       Global options.
* Calendar format, special:              Calendar options.
* Calendar format, standard:             Calendar options.
* Calendar options:                      Calendar options.
* Calendar sheet, alternative date format in: Calendar options.
* Calendar sheet, force output of:       Calendar options.
* Calendar sheet, provide with week numbers: Calendar options.
* Calendar sheet, special date format in: Calendar options.
* Calendar sheet, standard and special date format in: Calendar options.
* Calendar sheet, suppress:              Calendar options.
* Calendar, Gregorian:                   Todays Calendar.
* Calendar, Julian:                      Todays Calendar.
* Calendar, leap year rule as used by Eastern churches: Calendar options.
* Case sensitivity in matching, regexp:  Regexp Operators.
* Character classes, regexp:             Regexp Operators.
* Character list in regexp, complemented: Regexp Operators.
* Character list in regexp, negated:     Regexp Operators.
* Character list, regexp:                Regexp Operators.
* Christian holidays in eternal holiday list: Calendar options.
* CO environment variable:               Environment Variables.
* Coding Scheme of resource file:        Coding Scheme.
* Coding Scheme Table 1:                 Coding Scheme Table 1.
* Coding Scheme Table 2:                 Coding Scheme Table 2.
* Collating elements, regexp:            Regexp Operators.
* Collating symbols, regexp:             Regexp Operators.
* COLUMNS environment variable:          Environment Variables.
* Command line arguments:                Command line arguments.
* Command line interpreter:              Invoking Gcal.
* Command line options, gcal:            Options.
* Command line word, single:             Fixed date options.
* Command separator characters, list of: Commands.
* Command, .:                            3-Month mode commands.
* Command, . YYYY:                       3-Month mode commands.
* Command, .+:                           3-Month mode commands.
* Command, .+ YYYY:                      3-Month mode commands.
* Command, .-:                           3-Month mode commands.
* Command, .- YYYY:                      3-Month mode commands.
* Command, ..:                           3-Month mode commands.
* Command, .. YYYY:                      3-Month mode commands.
* Command, ::                            Single commands.
* Command, :YYYY:                        Single commands.
* Command, lists of:                     Commands.
* Command, MM YYYY:                      Single commands.
* Command, MM YYYY-YYYY:                 Ranges of commands.
* Command, MM,...,MM:                    Lists of commands.
* Command, MM,...,MM YYYY:               Lists of commands.
* Command, MM,MM/YYYY,...:               Lists of commands.
* Command, MM-MM:                        Ranges of commands.
* Command, MM-MM YYYY:                   Ranges of commands.
* Command, MM/YYYY:                      Single commands.
* Command, MM/YYYY,...,MM/YYYY:          Lists of commands.
* Command, MM/YYYY-MM/YYYY:              Ranges of commands.
* Command, MM/YYYY-YYYY:                 Ranges of commands.
* Command, MM::                          Single commands.
* Command, MM:;MM:;...:                  Lists of commands.
* Command, MM:;MM:YYYY;...:              Lists of commands.
* Command, MM:YYYY:                      Single commands.
* Command, MM:YYYY+MM:YYYY:              Ranges of commands.
* Command, MM:YYYY;...;MM:YYYY:          Lists of commands.
* Command, MONTH NAME:                   Single commands.
* Command, NOTHING:                      Single commands.
* Command, ranges of:                    Commands.
* Command, YYYY:                         Single commands.
* Command, YYYY+YYYY:                    Ranges of commands.
* Command, YYYY;...;YYYY:                Lists of commands.
* Commands:                              Command line arguments.
* Commands, lists of:                    Lists of commands.
* Commands, overview of:                 Commands.
* Commands, ranges of:                   Ranges of commands.
* Commands, single <1>:                  Single commands.
* Commands, single:                      Commands.
* Comment character, ; <1>:              Comment line.
* Comment character, ;:                  Response file.
* Comment line:                          Comment line.
* Common options:                        Common options.
* Complemented character list, regexp:   Regexp Operators.
* Complete month name, %M[DATE] special text: Month name.
* Complete weekday name, %o[DATE] special text: Weekday name.
* Continue line in resource file:        Text part of a line.
* Control character sequence:            Global options.
* Copyleft:                              Common options.
* Copyright:                             Common options.
* Country code <1>:                      Internationalization.
* Country code:                          Calendar options.
* Country specific holidays in eternal holiday list: Calendar options.
* Critical day, biorhythm:               Biorhythm.
* Current month of current year:         Single commands.
* Current months, range of:              Ranges of commands.
* Date part of a line:                   Date part of a line.
* Date part, appearance factor of days:  Appearance factor of days.
* Date part, further attributes:         Further date part attributes.
* Date part, lists of days:              Lists of days.
* Date part, ranges of days:             Ranges of days.
* Date part, repetition factor of days:  Repetition factor of days.
* Date variables:                        Date variables.
* Date variables, addition by days:      Date variables.
* Date variables, addition by weekdays:  Date variables.
* Date variables, assignments to <1>:    Fixed date options.
* Date variables, assignments to:        Date variables.
* Date variables, definition of <1>:     Fixed date options.
* Date variables, definition of:         Date variables.
* Date variables, export of local <1>:   Date variables.
* Date variables, export of local:       Fixed date options.
* Date variables, global <1>:            Date variables.
* Date variables, global:                Fixed date options.
* Date variables, local:                 Date variables.
* Date variables, management of <1>:     Fixed date options.
* Date variables, management of:         Date variables.
* Date variables, name space of <1>:     Fixed date options.
* Date variables, name space of:         Date variables.
* Date variables, operations on <1>:     Fixed date options.
* Date variables, operations on:         Date variables.
* Date variables, scope of <1>:          Fixed date options.
* Date variables, scope of:              Date variables.
* Date variables, simple decrementing:   Date variables.
* Date variables, simple incrementing:   Date variables.
* Date variables, subtraction by days:   Date variables.
* Date variables, subtraction by weekdays: Date variables.
* Date variables, total number of:       Date variables.
* Date variables, visibility of:         Date variables.
* Date variables, visibility of local <1>: Fixed date options.
* Date variables, visibility of local:   Date variables.
* Day %?[DATE] special texts <1>:        Day.
* Day %?[DATE] special texts:            Special Texts Summary.
* Day number %?[DATE] special texts <1>: Special Texts Summary.
* Day number %?[DATE] special texts:     Day number.
* Day number, %#[DATE] special text:     Day number.
* Day number, %&[DATE] special text:     Day number.
* Day number, %*[DATE] special text:     Day number.
* Day number, %+[DATE] special text:     Day number.
* Day, %D[DATE] special text:            Day.
* Day, %N[DATE] special text:            Day.
* Day, %s[DATE] special text:            Day.
* Day, %u[DATE] special text:            Day.
* Defaults of native language:           Internationalization.
* Definition of date variables <1>:      Fixed date options.
* Definition of date variables:          Date variables.
* Definition of global date variables:   Fixed date options.
* Definition of global text variables:   Fixed date options.
* Definition of local date variables:    Date variables.
* Definition of local text variables:    Text variables.
* Definition of text variables <1>:      Fixed date options.
* Definition of text variables:          Text variables.
* Deletion of local date variables:      Date variables.
* Depreciation character, \ <1>:         Fixed date options.
* Depreciation character, \ <2>:         Special texts processed.
* Depreciation character, \ <3>:         Fixed date options.
* Depreciation character, \ <4>:         Text part of a line.
* Depreciation character, \:             Text variables.
* Depreciation of special characters <1>: Fixed date options.
* Depreciation of special characters <2>: Text variables.
* Depreciation of special characters <3>: Fixed date options.
* Depreciation of special characters <4>: Text part of a line.
* Depreciation of special characters <5>: Fixed date options.
* Depreciation of special characters <6>: Response file.
* Depreciation of special characters <7>: Text part of a line.
* Depreciation of special characters <8>: Command line arguments.
* Depreciation of special characters <9>: Fixed date options.
* Depreciation of special characters:    Special texts processed.
* Description of all %?... special texts: Special Texts.
* Difference value %? special texts <1>: Special Texts Summary.
* Difference value %? special texts:     Other difference values.
* Difference value %?[DATE] special texts <1>: Special Texts Summary.
* Difference value %?[DATE] special texts: Difference value.
* Directory, actual:                     Resource file.
* Disable highlighting sequences:        Global options.
* Disable marking characters:            Global options.
* Eastern churches' leap year rule, using: Calendar options.
* Electronic Mail:                       Global options.
* EMail, error code:                     Error Codes.
* EMail, option:                         Global options.
* End of highlighting sequence 1 or 2, %0 special text: Highlighting.
* End of highlighting sequence 1, %2 special text: Highlighting.
* End of highlighting sequence 1, %6 special text: Highlighting.
* End of highlighting sequence 2, %4 special text: Highlighting.
* End of highlighting sequence 2, %8 special text: Highlighting.
* Ending date of fixed date <1>:         Inclusive date period.
* Ending date of fixed date:             Exclusive date period.
* Environment variable, CO:              Environment Variables.
* Environment variable, COLUMNS:         Environment Variables.
* Environment variable, GCAL <1>:        The GCAL environment variable.
* Environment variable, GCAL <2>:        Environment Variables.
* Environment variable, GCAL:            Global options.
* Environment variable, GCAL_DATE_FORMAT: Environment Variables.
* Environment variable, GCAL_SYS_DATADIR <1>: Environment Variables.
* Environment variable, GCAL_SYS_DATADIR: Resource file.
* Environment variable, GCAL_USR_DATADIR <1>: Environment Variables.
* Environment variable, GCAL_USR_DATADIR: Resource file.
* Environment variable, GCALANSI <1>:    Environment Variables.
* Environment variable, GCALANSI:        Global options.
* Environment variable, GCALPATH <1>:    Environment Variables.
* Environment variable, GCALPATH:        Resource file.
* Environment variable, GCALPROG <1>:    Environment Variables.
* Environment variable, GCALPROG:        Invoking tcal.
* Environment variable, HOME <1>:        Resource file.
* Environment variable, HOME:            Environment Variables.
* Environment variable, LANG <1>:        Environment Variables.
* Environment variable, LANG:            Internationalization.
* Environment variable, LANGUAGE <1>:    Internationalization.
* Environment variable, LANGUAGE:        Environment Variables.
* Environment variable, LC_ALL <1>:      Internationalization.
* Environment variable, LC_ALL:          Environment Variables.
* Environment variable, LC_MESSAGES <1>: Environment Variables.
* Environment variable, LC_MESSAGES:     Internationalization.
* Environment variable, LI:              Environment Variables.
* Environment variable, LINES:           Environment Variables.
* Environment variable, MAILPROG <1>:    Global options.
* Environment variable, MAILPROG:        Environment Variables.
* Environment variable, PAGER <1>:       Global options.
* Environment variable, PAGER:           Environment Variables.
* Environment variable, PATH <1>:        Environment Variables.
* Environment variable, PATH:            Global options.
* Environment variable, TERM:            Environment Variables.
* Environment variable, TZ:              Environment Variables.
* Environment Variables, table of all:   Environment Variables.
* Environment variables, table of all respected: Environment Variables.
* Equivalence classes, regexp:           Regexp Operators.
* Eror code 127:                         Common options.
* Error code 1:                          Fixed date options.
* Error code 113:                        Date variables.
* Error code 118:                        Resource file.
* Error code 119:                        Include directives.
* Error code 126:                        Fixed date options.
* Error code 2:                          Shell Command.
* Error Codes, table of all:             Error Codes.
* Escape sequence:                       Global options.
* Eternal holiday list, alternative date format in: Calendar options.
* Eternal holiday list, Christian holidays in: Calendar options.
* Eternal holiday list, country specific holidays in: Calendar options.
* Eternal holiday list, option:          Calendar options.
* Eternal holiday list, special date format in: Calendar options.
* Eternal holiday list, standard and special date format in: Calendar options.
* Eternal holiday list, suppress standard holidays in: Calendar options.
* Eternal holiday list, suppression of title text: Calendar options.
* Eternal holiday list, without standard holidays in: Calendar options.
* Eternal Holidays:                      Eternal Holidays.
* Examples of resource files:            Resource file examples.
* Examples to appearance factors of days: Appearance factor of days.
* Examples to lists of days:             Lists of days.
* Examples to ranges of days:            Ranges of days.
* Examples to repetition factors of days: Repetition factor of days.
* Exclusions with date argument %?[DATE] special texts: Exclusions with date argument.
* Exclusions without any argument %? special texts: Exclusions without any argument.
* Exclusive all holidays, %X special text: Exclusive day period.
* Exclusive date period, %e[DATE][#[DATE]] special text <1>: Exclusive date period.
* Exclusive date period, %e[DATE][#[DATE]] special text: Special Texts Summary.
* Exclusive day period %? special texts <1>: Special Texts Summary.
* Exclusive day period %? special texts: Exclusive day period.
* Exclusive Friday, %H special text:     Exclusive day period.
* Exclusive legal holidays, %V special text: Exclusive day period.
* Exclusive Monday, %A special text:     Exclusive day period.
* Exclusive Monday...Friday, %R special text: Exclusive day period.
* Exclusive Monday...Thursday, %Q special text: Exclusive day period.
* Exclusive Saturday, %L special text:   Exclusive day period.
* Exclusive Sunday, %P special text:     Exclusive day period.
* Exclusive Thursday, %G special text:   Exclusive day period.
* Exclusive Tuesday, %C special text:    Exclusive day period.
* Exclusive Wednesday, %F special text:  Exclusive day period.
* Exit code 1:                           Fixed date options.
* Exit code 113:                         Date variables.
* Exit code 118:                         Resource file.
* Exit code 119:                         Include directives.
* Exit code 126:                         Fixed date options.
* Exit code 127:                         Common options.
* Exit code 2:                           Shell Command.
* Exit Codes, table of all:              Error Codes.
* Explicit fiscal year:                  Single commands.
* Export of local date variables <1>:    Fixed date options.
* Export of local date variables:        Date variables.
* Export of local text variables <1>:    Text variables.
* Export of local text variables:        Fixed date options.
* Extended file name:                    Resource file.
* Extended help text:                    Common options.
* Extended language code information:    Internationalization.
* External pager program:                Global options.
* File name, extended:                   Resource file.
* File name, simple:                     Resource file.
* File searching mechanism:              Resource file.
* Filtration, days of fixed dates:       Fixed date options.
* Filtration, fixed date texts:          Fixed date options.
* Filtration, periods of fixed dates:    Fixed date options.
* Fiscal year, explicit:                 Single commands.
* Fiscal year, implicit:                 Single commands.
* Fiscal year, limitations <1>:          Date variables.
* Fiscal year, limitations:              Further date part attributes.
* Fiscal year, single:                   Single commands.
* Fiscal years of the actual year, list of: Lists of commands.
* Fiscal years, list of:                 Lists of commands.
* Fiscal years, mixed list of:           Lists of commands.
* Fiscal years, range of:                Ranges of commands.
* Fixed date function, activate:         Fixed date options.
* Fixed date list, alternative date format in: Calendar options.
* Fixed date list, special date format in: Calendar options.
* Fixed date list, standard and special date format in: Calendar options.
* Fixed date list, suppression of title text: Fixed date options.
* Fixed date options:                    Fixed date options.
* Fixed date period long-style option, --end-of-month: Fixed date options.
* Fixed date period long-style option, --end-of-week: Fixed date options.
* Fixed date period long-style option, --end-of-year: Fixed date options.
* Fixed date period long-style option, --month: Fixed date options.
* Fixed date period long-style option, --start-of-month: Fixed date options.
* Fixed date period long-style option, --start-of-week: Fixed date options.
* Fixed date period long-style option, --start-of-year: Fixed date options.
* Fixed date period long-style option, --today: Fixed date options.
* Fixed date period long-style option, --tomorrow: Fixed date options.
* Fixed date period long-style option, --week: Fixed date options.
* Fixed date period long-style option, --year: Fixed date options.
* Fixed date period modifier, *dN:       Fixed date options.
* Fixed date period modifier, *dNWWW:    Fixed date options.
* Fixed date period modifier, *wN[WWW]:  Fixed date options.
* Fixed date period modifier, 0MMDD:     Fixed date options.
* Fixed date period modifier, @DVAR[+|-]NWWW: Fixed date options.
* Fixed date period modifier, @DVAR[[+|-]N]: Fixed date options.
* Fixed date period modifier, @e[+|-]NWWW: Fixed date options.
* Fixed date period modifier, @e[[+|-]N]: Fixed date options.
* Fixed date period modifier, @t[+|-]NWWW: Fixed date options.
* Fixed date period modifier, @t[[+|-]N]: Fixed date options.
* Fixed date period modifier, d:         Fixed date options.
* Fixed date period modifier, l:         Fixed date options.
* Fixed date period modifier, l*dN:      Fixed date options.
* Fixed date period modifier, l*dNWWW:   Fixed date options.
* Fixed date period modifier, l*wN[WWW]: Fixed date options.
* Fixed date period modifier, l@DVAR[+|-]NWWW: Fixed date options.
* Fixed date period modifier, l@DVAR[[+|-]N]: Fixed date options.
* Fixed date period modifier, l@e[+|-]NWWW: Fixed date options.
* Fixed date period modifier, l@e[[+|-]N]: Fixed date options.
* Fixed date period modifier, l@t[+|-]NWWW: Fixed date options.
* Fixed date period modifier, l@t[[+|-]N]: Fixed date options.
* Fixed date period modifier, lMMWWWN:   Fixed date options.
* Fixed date period modifier, lN+|-:     Fixed date options.
* Fixed date period modifier, lNd:       Fixed date options.
* Fixed date period modifier, lNw:       Fixed date options.
* Fixed date period modifier, MMDD:      Fixed date options.
* Fixed date period modifier, MMWWWN:    Fixed date options.
* Fixed date period modifier, m|M[+|-]:  Fixed date options.
* Fixed date period modifier, N+|-:      Fixed date options.
* Fixed date period modifier, Nd:        Fixed date options.
* Fixed date period modifier, Nw:        Fixed date options.
* Fixed date period modifier, t|T:       Fixed date options.
* Fixed date period modifier, w|W[+|-]:  Fixed date options.
* Fixed date period modifier, y|Y[+|-]:  Fixed date options.
* Fixed date period modifiers and options: Fixed date options.
* Fixed date period option, --leap-day=february: Fixed date options.
* Fixed date period option, --leap-day=february|march: Fixed date options.
* Fixed date period option, --leap-day=march: Fixed date options.
* Fixed date text modifier, a:           Fixed date options.
* Fixed date text modifier, A:           Fixed date options.
* Fixed date text modifier, B:           Fixed date options.
* Fixed date text modifier, E:           Fixed date options.
* Fixed date text modifier, e:           Fixed date options.
* Fixed date text modifier, g[TEXT]:     Fixed date options.
* Fixed date text modifier, k:           Fixed date options.
* Fixed date text modifier, o:           Fixed date options.
* Fixed date text modifier, U:           Fixed date options.
* Fixed date text modifier, x:           Fixed date options.
* Fixed date text modifier, z:           Fixed date options.
* Fixed date text modifier, Z:           Fixed date options.
* Fixed date text modifiers:             Fixed date options.
* Fixed date text option, --biorhythm-axis=NUMBER: Fixed date options.
* Fixed date text option, --moonimage-lines=NUMBER: Fixed date options.
* Fixed date texts, filtration of:       Fixed date options.
* Fixed date, ending date of <1>:        Exclusive date period.
* Fixed date, ending date of:            Inclusive date period.
* Fixed date, option:                    Fixed date options.
* Fixed date, starting date of <1>:      Inclusive date period.
* Fixed date, starting date of:          Exclusive date period.
* Fixed Dates:                           Fixed Dates.
* Fixed dates:                           Fixed date options.
* Fixed dates for *today*:               Fixed date options.
* Fixed dates for *tomorrow*:            Fixed date options.
* Fixed dates for the *month*:           Fixed date options.
* Fixed dates for the *week*:            Fixed date options.
* Fixed dates for the *year*:            Fixed date options.
* Fixed dates, filtration of days:       Fixed date options.
* Fixed dates, filtration of periods:    Fixed date options.
* Fixed format date text:                Textual date.
* Force line break up:                   Fixed date options.
* Force line break up in resource file:  Text part of a line.
* Force output of month calendar sheet:  Calendar options.
* Force year calendar sheet:             Calendar options.
* Forcing highlighting sequences:        Global options.
* Further date part attributes:          Further date part attributes.
* Further resource file line:            Fixed date options.
* GCAL environment variable <1>:         Global options.
* GCAL environment variable <2>:         Environment Variables.
* GCAL environment variable <3>:         The GCAL environment variable.
* GCAL environment variable:             Global options.
* Gcal Introduction:                     Gcal Introduction.
* gcal options:                          Options.
* Gcal Utilities:                        Gcal Utilities.
* gcal, options of:                      Command line arguments.
* gcal2txt, options of:                  Invoking gcal2txt.
* gcal2txt, utility:                     Invoking gcal2txt.
* GCAL_DATE_FORMAT environment variable: Environment Variables.
* GCAL_SYS_DATADIR environment variable <1>: Environment Variables.
* GCAL_SYS_DATADIR environment variable: Resource file.
* GCAL_USR_DATADIR environment variable <1>: Environment Variables.
* GCAL_USR_DATADIR environment variable: Resource file.
* GCALANSI environment variable <1>:     Environment Variables.
* GCALANSI environment variable:         Global options.
* GCALPATH environment variable <1>:     Resource file.
* GCALPATH environment variable:         Environment Variables.
* GCALPROG environment variable <1>:     Environment Variables.
* GCALPROG environment variable:         Invoking tcal.
* Global date variables, definition of:  Fixed date options.
* Global options:                        Global options.
* Global text variables, definition of:  Fixed date options.
* GNU specific regexp operators:         Regexp Operators.
* GNU style options:                     Options.
* Gregorian calendar, Genesis of:        Todays Calendar.
* Gregorian Reformation, set period of:  Calendar options.
* Handling of non-printable characters in the text part: Text part of a line.
* Handling of NUL characters in the text part: Text part of a line.
* Handling of special character sequences in the text part: Text part of a line.
* Help text, extended:                   Common options.
* Help text, long:                       Common options.
* Help text, short:                      Common options.
* Help, on-line:                         Common options.
* Highlighting %? special texts <1>:     Special Texts Summary.
* Highlighting %? special texts:         Highlighting.
* Highlighting sequences, disabling:     Global options.
* Highlighting sequences, forcing:       Global options.
* Highlighting sequences, setting:       Global options.
* Holiday list, eternal:                 Eternal Holidays.
* HOME environment variable <1>:         Environment Variables.
* HOME environment variable:             Resource file.
* How to use regular expressions:        Regexp Usage.
* Ignoring case, regexp:                 Regexp Operators.
* Implicit fiscal year:                  Single commands.
* Include directives:                    Include directives.
* Inclusive all holidays, %x special text: Inclusive day period.
* Inclusive date period, %i[DATE][#[DATE]] special text <1>: Inclusive date period.
* Inclusive date period, %i[DATE][#[DATE]] special text: Special Texts Summary.
* Inclusive day period %? special texts <1>: Inclusive day period.
* Inclusive day period %? special texts: Special Texts Summary.
* Inclusive Friday, %h special text:     Inclusive day period.
* Inclusive legal holidays, %v special text: Inclusive day period.
* Inclusive Monday, %a special text:     Inclusive day period.
* Inclusive Monday...Friday, %r special text: Inclusive day period.
* Inclusive Monday...Thursday, %q special text: Inclusive day period.
* Inclusive Saturday, %l special text:   Inclusive day period.
* Inclusive Sunday, %p special text:     Inclusive day period.
* Inclusive Thursday, %g special text:   Inclusive day period.
* Inclusive Tuesday, %c special text:    Inclusive day period.
* Inclusive Wednesday, %f special text:  Inclusive day period.
* Internal pager, simple:                Global options.
* Internationalization aspects:          Internationalization.
* Interval expressions, regexp:          Regexp Operators.
* Invoking gcal:                         Invoking Gcal.
* Invoking gcal2txt:                     Invoking gcal2txt.
* Invoking tcal:                         Invoking tcal.
* Invoking txt2gcal:                     Invoking txt2gcal.
* ISO-3166 <1>:                          Calendar options.
* ISO-3166:                              Internationalization.
* ISO-639:1988:                          Internationalization.
* ISO-8601:1988 <1>:                     Week.
* ISO-8601:1988 <2>:                     Calendar options.
* ISO-8601:1988 <3>:                     Fixed date options.
* ISO-8601:1988:                         Date part of a line.
* Julian calendar:                       Todays Calendar.
* Julian day number %j[ARGUMENT] special text <1>: Special Texts Summary.
* Julian day number %j[ARGUMENT] special text: Julian day number.
* LANG environment variable <1>:         Environment Variables.
* LANG environment variable:             Internationalization.
* Language code information, extended:   Internationalization.
* Language code information, simple:     Internationalization.
* Language codes:                        Internationalization.
* LANGUAGE environment variable <1>:     Environment Variables.
* LANGUAGE environment variable:         Internationalization.
* LC_ALL environment variable <1>:       Internationalization.
* LC_ALL environment variable:           Environment Variables.
* LC_MESSAGES environment variable <1>:  Environment Variables.
* LC_MESSAGES environment variable:      Internationalization.
* Leap day:                              Fixed date options.
* Leap year rule as used by Eastern orthodox churches: Calendar options.
* LI environment variable:               Environment Variables.
* Limitations in a resource file <1>:    Structure of resource file.
* Limitations in a resource file <2>:    Text part of a line.
* Limitations in a resource file:        Date variables.
* Limitations in the text part of a line: Text part of a line.
* Limitations of use of 3-Month modes <1>: Further date part attributes.
* Limitations of use of 3-Month modes:   Date variables.
* Limitations of use of fiscal years <1>: Further date part attributes.
* Limitations of use of fiscal years:    Date variables.
* Line break up character, ^ <1>:        Text part of a line.
* Line break up character, ^:            Fixed date options.
* Line break up character, ~ <1>:        Fixed date options.
* Line break up character, ~ <2>:        Text part of a line.
* Line break up character, ~:            Fixed date options.
* Line continuation character, \:        Text part of a line.
* Line, date part of:                    Date part of a line.
* LINES environment variable:            Environment Variables.
* List of all long-style option names:   Common options.
* List of all Metasymbols within the document: Metasymbols.
* List of command separator characters:  Commands.
* List of fiscal years:                  Lists of commands.
* List of fiscal years of the actual year: Lists of commands.
* List of months in specified year:      Lists of commands.
* List of specified fiscal years:        Lists of commands.
* List of specified months of selected year: Lists of commands.
* List of specified months of the current year: Lists of commands.
* List of specified years:               Lists of commands.
* List of whitespace character:          Structure of resource file.
* Lists of commands <1>:                 Lists of commands.
* Lists of commands:                     Commands.
* Lists of days:                         Lists of days.
* Lists of days, examples to:            Lists of days.
* Lists of days, valid date parts of:    Lists of days.
* Local date variables:                  Date variables.
* Local date variables, definition of:   Date variables.
* Local date variables, deletion of:     Date variables.
* Local text variables:                  Text variables.
* Local text variables, definition of:   Text variables.
* Long help text:                        Common options.
* Long-style option names, list of:      Common options.
* Long-style options:                    Options.
* Mail, sending:                         Global options.
* MAILPROG environment variable <1>:     Global options.
* MAILPROG environment variable:         Environment Variables.
* Management of date variables <1>:      Date variables.
* Management of date variables:          Fixed date options.
* Management of text variables <1>:      Fixed date options.
* Management of text variables:          Text variables.
* Marking characters, disabling:         Global options.
* Marking characters, setting:           Global options.
* Message catalog:                       Internationalization.
* Metacharacters, regexp:                Regexp Operators.
* Metasymbols within this document, list of all: Metasymbols.
* Mixed list of fiscal years:            Lists of commands.
* Mixed list of months:                  Lists of commands.
* Modifiers, fixed date period:          Fixed date options.
* Modifiers, fixed date text:            Fixed date options.
* Month %?[DATE] special texts <1>:      Month.
* Month %?[DATE] special texts:          Special Texts Summary.
* Month mode, selected:                  Single commands.
* Month mode, single:                    Single commands.
* Month name %?[DATE] special texts <1>: Special Texts Summary.
* Month name %?[DATE] special texts:     Month name.
* Month's fixed dates:                   Fixed date options.
* Month, %U[DATE] special text:          Month.
* Month, %W[DATE] special text:          Month.
* Month, %z[DATE] special text:          Month.
* Month, %Z[DATE] special text:          Month.
* Months in specified year, list of:     Lists of commands.
* Months of year, range of:              Ranges of commands.
* Months, mixed list of:                 Lists of commands.
* Moonphase %?[DATE] special texts <1>:  Moonphase.
* Moonphase %?[DATE] special texts:      Special Texts Summary.
* Moonphase text graphics, %:[DATE] special text: Moonphase.
* Moonphase, %-[DATE] special text:      Moonphase.
* Moonphase, %_[DATE] special text:      Moonphase.
* Move leap day to 1st March:            Fixed date options.
* Move leap day to 28th February:        Fixed date options.
* Name space of date variables <1>:      Fixed date options.
* Name space of date variables:          Date variables.
* Name space of text variables <1>:      Text variables.
* Name space of text variables:          Fixed date options.
* Native language defaults:              Internationalization.
* Native language, selection of:         Internationalization.
* Native language, used:                 Internationalization.
* Negated character list, regexp:        Regexp Operators.
* Negative day, biorhythm:               Biorhythm.
* Non-printable characters in the text part, handling: Text part of a line.
* NUL characters in the text part, handling: Text part of a line.
* Number of year calendar sheet blocks:  Calendar options.
* Operations on date variables <1>:      Fixed date options.
* Operations on date variables:          Date variables.
* Operators, regexp:                     Regexp Operators.
* Option %DATE <1>:                      Actual date modifier.
* Option %DATE:                          Command line arguments.
* Option @FILE <1>:                      Response file.
* Option @FILE:                          Command line arguments.
* Options <1>:                           Command line arguments.
* Options:                               Options.
* Options of gcal:                       Command line arguments.
* Options of gcal2txt:                   Invoking gcal2txt.
* Options of tcal:                       Invoking tcal.
* Options of txt2gcal:                   Invoking txt2gcal.
* Options, fixed date period:            Fixed date options.
* Options, fixed date text:              Fixed date options.
* Options, long-style:                   Options.
* Options, short-style:                  Options.
* Options, single character:             Fixed date options.
* Other resource file:                   Fixed date options.
* Output, pipeing of:                    Global options.
* Output, redirection of:                Global options.
* PAGER environment variable <1>:        Environment Variables.
* PAGER environment variable:            Global options.
* Pager program:                         Global options.
* Pager, external:                       Global options.
* Pager, internal:                       Global options.
* Pager, using:                          Global options.
* PATH environment variable <1>:         Environment Variables.
* PATH environment variable:             Global options.
* Pattern, regular expressions:          Regular Expressions.
* Period of Gregorian Reformation, set:  Calendar options.
* Period-of-fixed-dates-modifier:        Fixed date options.
* Pipeing of output:                     Global options.
* Positive day, biorhythm:               Biorhythm.
* POSIX regexp:                          Regexp Operators.
* Precedence, regexp operators:          Regexp Operators.
* Private access resource files:         Environment Variables.
* Program exit state 127:                Common options.
* Program exit states, table of:         Error Codes.
* Protection character, \ <1>:           Fixed date options.
* Protection character, \ <2>:           Text variables.
* Protection character, \ <3>:           Special texts processed.
* Protection character, \ <4>:           Text part of a line.
* Protection character, \:               Fixed date options.
* Protection of special characters <1>:  Text part of a line.
* Protection of special characters <2>:  Special texts processed.
* Protection of special characters <3>:  Text variables.
* Protection of special characters <4>:  Fixed date options.
* Protection of special characters <5>:  Response file.
* Protection of special characters <6>:  Fixed date options.
* Protection of special characters <7>:  Text part of a line.
* Protection of special characters <8>:  Fixed date options.
* Protection of special characters <9>:  Command line arguments.
* Protection of special characters:      Fixed date options.
* Provide calendar sheet with week numbers: Calendar options.
* Pseudo space character, _:             Fixed date options.
* Public access resource files:          Environment Variables.
* Quotation of special characters <1>:   Command line arguments.
* Quotation of special characters:       Response file.
* Range of current months:               Ranges of commands.
* Range of fiscal years:                 Ranges of commands.
* Range of months of year:               Ranges of commands.
* Range of specified fiscal years:       Ranges of commands.
* Range of specified month of selected years: Ranges of commands.
* Range of specified months of selected year: Ranges of commands.
* Range of specified years:              Ranges of commands.
* Ranges of commands <1>:                Commands.
* Ranges of commands:                    Ranges of commands.
* Ranges of days:                        Ranges of days.
* Ranges of days, examples to:           Ranges of days.
* Ranges of days, valid date parts of:   Ranges of days.
* Redirection of output:                 Global options.
* Redirection of standard output:        Structure of resource file.
* Redirection of standard output, appending to file: Structure of resource file.
* Regexp:                                Regular Expressions.
* Regexp metacharacters:                 Regexp Operators.
* Regexp operator, \':                   Regexp Operators.
* Regexp operator, \<:                   Regexp Operators.
* Regexp operator, \>:                   Regexp Operators.
* Regexp operator, \`:                   Regexp Operators.
* Regexp operator, \b:                   Regexp Operators.
* Regexp operator, \B:                   Regexp Operators.
* Regexp operator, \W:                   Regexp Operators.
* Regexp operator, \w:                   Regexp Operators.
* Regexp operators:                      Regexp Operators.
* Regexp operators, GNU specific:        Regexp Operators.
* Regexp operators, precedence of:       Regexp Operators.
* Regexp, anchors in:                    Regexp Operators.
* Regexp, buffer matching operators:     Regexp Operators.
* Regexp, case sensitivity in matching:  Regexp Operators.
* Regexp, character classes in:          Regexp Operators.
* Regexp, character list in:             Regexp Operators.
* Regexp, collating elements in:         Regexp Operators.
* Regexp, collating symbols in:          Regexp Operators.
* Regexp, complemented character list in: Regexp Operators.
* Regexp, definition of a word:          Regexp Operators.
* Regexp, equivalence classes in:        Regexp Operators.
* Regexp, ignoring case in:              Regexp Operators.
* Regexp, interval expressions:          Regexp Operators.
* Regexp, matching word boundaries:      Regexp Operators.
* Regexp, negated character list in:     Regexp Operators.
* Regexp, POSIX:                         Regexp Operators.
* Regular expression:                    Regular Expressions.
* Regular Expression:                    Fixed date options.
* Regular expression metacharacters:     Regexp Operators.
* Regular expression operators:          Regexp Operators.
* Regular expressions as patterns:       Regular Expressions.
* Regular expressions, how to use:       Regexp Usage.
* Regular expressions, short-list of all: Regexp Summary.
* Regular expressions, summary of all:   Regexp Summary.
* Relative day number, %d special text:  Other difference values.
* Relative month number, %m special text: Other difference values.
* Relative week number, %w special text: Other difference values.
* Relative year number, %y special text: Other difference values.
* Relative year number, %yDATE special text: Difference value.
* Remark character, ;:                   Comment line.
* Repetition factor of days, :N:         Repetition factor of days.
* Repetition factors of days, examples to: Repetition factor of days.
* Repetition factors of days, valid date parts of: Repetition factor of days.
* Replacements with date argument %?[DATE] special texts: Replacements with date argument.
* Replacements with other argument %?[ARGUMENT] special texts: Replacements with other argument.
* Replacements without any argument %? special texts: Replacements without any argument.
* Representation-of-text-modifier:       Fixed date options.
* Resource file examples:                Resource file examples.
* Resource file line, additional:        Fixed date options.
* Resource file line, further:           Fixed date options.
* Resource file, .gcalrc:                Resource file.
* Resource file, additional <1>:         Resource file.
* Resource file, additional:             Fixed date options.
* Resource file, coding scheme:          Coding Scheme.
* Resource file, date part:              Coding Scheme.
* Resource file, date part of:           Date part of a line.
* Resource file, force line break up:    Text part of a line.
* Resource file, include directives:     Include directives.
* Resource file, limitations <1>:        Structure of resource file.
* Resource file, limitations:            Date variables.
* Resource file, limitations of:         Text part of a line.
* Resource file, line comment:           Comment line.
* Resource file, line contination:       Text part of a line.
* Resource file, loading:                Resource file.
* Resource file, name of:                Resource file.
* Resource file, other:                  Fixed date options.
* Resource file, remarking of text part: Text part of a line.
* Resource file, searching mechanism:    Resource file.
* Resource file, standard:               Resource file.
* Resource file, structure:              Structure of resource file.
* Resource file, text part of:           Text part of a line.
* Resource file, two parts of a line:    Structure of resource file.
* Resource file, using:                  Resource file.
* Respected environment variables, table of all: Environment Variables.
* Response file, @FILE:                  Response file.
* Response file, creation of:            Global options.
* Run-time error codes, table of:        Error Codes.
* Scope of date variables <1>:           Fixed date options.
* Scope of date variables:               Date variables.
* Scope of text variables <1>:           Fixed date options.
* Scope of text variables:               Text variables.
* Searching resource file:               Resource file.
* Selected month mode:                   Single commands.
* Selected month of current year:        Single commands.
* Selected year:                         Single commands.
* Selection of native language:          Internationalization.
* Sending eMail:                         Global options.
* Separator character of lists of days, ,: Lists of days.
* Separator character of ranges of days, #: Ranges of days.
* Separator character, + <1>:            Fixed date options.
* Separator character, +:                Calendar options.
* Separator character, : <1>:            Fixed date options.
* Separator character, : <2>:            Global options.
* Separator character, ::                Fixed date options.
* Separator character, whitespace <1>:   Structure of resource file.
* Separator character, whitespace <2>:   Include directives.
* Separator character, whitespace:       Options.
* Sequence of control characters:        Global options.
* Set highlighing sequences:             Global options.
* Set marking characters:                Global options.
* Set starting day of week:              Calendar options.
* Shell <1>:                             Invoking Gcal.
* Shell <2>:                             Fixed date options.
* Shell:                                 Command line arguments.
* Shell command %![ARGUMENT] special text <1>: Shell Command.
* Shell command %![ARGUMENT] special text: Special Texts Summary.
* Shell command, execution of:           Shell Command.
* Shell script, creation of:             Global options.
* Short help text:                       Common options.
* Short-list of all %?... special texts: Special Texts Summary.
* Short-list of all regular expressions: Regexp Summary.
* Short-style options:                   Options.
* Simple decrementing date variables:    Date variables.
* Simple file name:                      Resource file.
* Simple incrementing date variables:    Date variables.
* Simple language code information:      Internationalization.
* Single character options <1>:          Fixed date options.
* Single character options <2>:          Options.
* Single character options:              Fixed date options.
* Single command line word <1>:          Options.
* Single command line word:              Fixed date options.
* Single Commands <1>:                   Commands.
* Single Commands:                       Single commands.
* Single fiscal year:                    Single commands.
* Single month mode:                     Single commands.
* Single month of selected year:         Single commands.
* Single year mode:                      Single commands.
* Software license, finding:             Common options.
* Special 3-Month mode commands <1>:     Commands.
* Special 3-Month mode commands:         3-Month mode commands.
* Special 3-Month mode, .:               3-Month mode commands.
* Special 3-Month mode, . YYYY:          3-Month mode commands.
* Special 3-Month mode, .+:              3-Month mode commands.
* Special 3-Month mode, .+ YYYY:         3-Month mode commands.
* Special 3-Month mode, .-:              3-Month mode commands.
* Special 3-Month mode, .- YYYY:         3-Month mode commands.
* Special 3-Month mode, ..:              3-Month mode commands.
* Special 3-Month mode, .. YYYY:         3-Month mode commands.
* Special calendar format:               Calendar options.
* Special character sequences in the text part, handling: Text part of a line.
* Special date format in calendar sheet: Calendar options.
* Special date format in eternal holiday list: Calendar options.
* Special date format in fixed date list: Calendar options.
* Special text %![ARGUMENT]:             Shell Command.
* Special text %#[DATE]:                 Day number.
* Special text %&[DATE]:                 Day number.
* Special text %([DATE]:                 Weekday.
* Special text %)[DATE]:                 Weekday.
* Special text %*[DATE]:                 Day number.
* Special text %+[DATE]:                 Day number.
* Special text %,[DATE]:                 Biorhythm.
* Special text %-[DATE]:                 Moonphase.
* Special text %0:                       Highlighting.
* Special text %1:                       Highlighting.
* Special text %2:                       Highlighting.
* Special text %3:                       Highlighting.
* Special text %4:                       Highlighting.
* Special text %5:                       Highlighting.
* Special text %6:                       Highlighting.
* Special text %7:                       Highlighting.
* Special text %8:                       Highlighting.
* Special text %9:                       Highlighting.
* Special text %:[DATE]:                 Moonphase.
* Special text %;[DATE]:                 Biorhythm.
* Special text %<[DATE]:                 Weekday.
* Special text %=[DATE]:                 Year.
* Special text %>[DATE]:                 Weekday.
* Special text %[[DATE]:                 Weekday.
* Special text %][DATE]:                 Weekday.
* Special text %_[DATE]:                 Moonphase.
* Special text %a:                       Inclusive day period.
* Special text %A:                       Exclusive day period.
* Special text %b[DATE]:                 Difference value.
* Special text %B[DATE]:                 Difference value.
* Special text %C:                       Exclusive day period.
* Special text %c:                       Inclusive day period.
* Special text %d:                       Other difference values.
* Special text %D[DATE]:                 Day.
* Special text %E[DATE]:                 Weekday.
* Special text %e[DATE][#[DATE]]:        Exclusive date period.
* Special text %f:                       Inclusive day period.
* Special text %F:                       Exclusive day period.
* Special text %G:                       Exclusive day period.
* Special text %g:                       Inclusive day period.
* Special text %H:                       Exclusive day period.
* Special text %h:                       Inclusive day period.
* Special text %I[DATE]:                 Weekday.
* Special text %i[DATE][#[DATE]]:        Inclusive date period.
* Special text %j[ARGUMENT]:             Julian day number.
* Special text %J[DATE]:                 Weekday.
* Special text %K[DATE]:                 Weekday name.
* Special text %k[DATE]:                 Week.
* Special text %L:                       Exclusive day period.
* Special text %l:                       Inclusive day period.
* Special text %m,:                      Other difference values.
* Special text %M[DATE]:                 Month name.
* Special text %n[ARGUMENT]:             Textual date.
* Special text %N[DATE]:                 Day.
* Special text %o[DATE]:                 Weekday name.
* Special text %O[DATE]:                 Weekday name.
* Special text %P:                       Exclusive day period.
* Special text %p:                       Inclusive day period.
* Special text %q:                       Inclusive day period.
* Special text %Q:                       Exclusive day period.
* Special text %R:                       Exclusive day period.
* Special text %r:                       Inclusive day period.
* Special text %s[DATE]:                 Day.
* Special text %S[DATE]:                 Weekday.
* Special text %t[ARGUMENT]:             Actual time.
* Special text %T[DATE]:                 Month name.
* Special text %u[DATE]:                 Day.
* Special text %U[DATE]:                 Month.
* Special text %V:                       Exclusive day period.
* Special text %v:                       Inclusive day period.
* Special text %w:                       Other difference values.
* Special text %W[DATE]:                 Month.
* Special text %X:                       Exclusive day period.
* Special text %x:                       Inclusive day period.
* Special text %y:                       Other difference values.
* Special text %Y[DATE]:                 Year.
* Special text %yDATE:                   Difference value.
* Special text %z[DATE]:                 Month.
* Special text %Z[DATE]:                 Month.
* Special text %{[DATE]:                 Weekday.
* Special text %}[DATE]:                 Weekday.
* Special text starting character, %:    Special texts processed.
* Specified fiscal years, list of:       Lists of commands.
* Specified fiscal years, range of:      Ranges of commands.
* Specified month of selected years, range of: Ranges of commands.
* Specified months of selected year, list of: Lists of commands.
* Specified months of selected year, range of: Ranges of commands.
* Specified months of the current year, list of: Lists of commands.
* Specified years, list of:              Lists of commands.
* Specified years, range of:             Ranges of commands.
* Standard and special date format in calendar sheet: Calendar options.
* Standard and special date format in eternal holiday list: Calendar options.
* Standard and special date format in fixed date list: Calendar options.
* Standard calendar format:              Calendar options.
* Start of highlighting sequence 1 or 2, %9 special text: Highlighting.
* Start of highlighting sequence 1, %1 special text: Highlighting.
* Start of highlighting sequence 1, %5 special text: Highlighting.
* Start of highlighting sequence 2, %3 special text: Highlighting.
* Start of highlighting sequence 2, %7 special text: Highlighting.
* Starting date of fixed date <1>:       Exclusive date period.
* Starting date of fixed date:           Inclusive date period.
* Starting day of week, setting:         Calendar options.
* Structure of resource file:            Structure of resource file.
* Subtraction by days, date variables:   Date variables.
* Subtraction by weekdays, date variables: Date variables.
* Summary of all %?... special texts:    Special Texts Summary.
* Summary of all regular expressions:    Regexp Summary.
* Suppress calendar sheet:               Calendar options.
* Suppress title text of eternal holiday list: Calendar options.
* Suppress title text of fixed date list: Fixed date options.
* Suppression of standard holidays in eternal holiday list: Calendar options.
* Switch character, -:                   Command line arguments.
* Switch character, --:                  Command line arguments.
* Switch character, /:                   Command line arguments.
* Table of all environment variables:    Environment Variables.
* Table of all error codes:              Error Codes.
* Table of all exit codes:               Error Codes.
* tcal, options of:                      Invoking tcal.
* tcal, utility:                         Invoking tcal.
* TERM environment variable:             Environment Variables.
* Territory code <1>:                    Calendar options.
* Territory code:                        Internationalization.
* Text part of a line:                   Text part of a line.
* Text part of a line, limitations:      Text part of a line.
* Text part of a resource file line:     Text part of a line.
* Text variables:                        Text variables.
* Text variables, assignments to <1>:    Text variables.
* Text variables, assignments to:        Fixed date options.
* Text variables, definition of <1>:     Fixed date options.
* Text variables, definition of:         Text variables.
* Text variables, export of local <1>:   Text variables.
* Text variables, export of local:       Fixed date options.
* Text variables, global <1>:            Text variables.
* Text variables, global:                Fixed date options.
* Text variables, local:                 Text variables.
* Text variables, management of <1>:     Fixed date options.
* Text variables, management of:         Text variables.
* Text variables, name space of <1>:     Fixed date options.
* Text variables, name space of:         Text variables.
* Text variables, scope of <1>:          Fixed date options.
* Text variables, scope of:              Text variables.
* Text variables, total number of:       Text variables.
* Text variables, visibility of:         Text variables.
* Text variables, visibility of local <1>: Text variables.
* Text variables, visibility of local:   Fixed date options.
* Textual date %n[ARGUMENT] special text <1>: Textual date.
* Textual date %n[ARGUMENT] special text: Special Texts Summary.
* The gcal2txt utility:                  Invoking gcal2txt.
* The tcal utility:                      Invoking tcal.
* The txt2gcal utility:                  Invoking txt2gcal.
* Today's fixed dates:                   Fixed date options.
* Tomorrow's fixed dates:                Fixed date options.
* Total number of date variables:        Date variables.
* Total number of text variables:        Text variables.
* txt2gcal, options of:                  Invoking txt2gcal.
* txt2gcal, utility:                     Invoking txt2gcal.
* TZ environment variable:               Environment Variables.
* Use Eastern orthodox churches' leap year rule: Calendar options.
* Utilities for Gcal:                    Gcal Utilities.
* Utility gcal2txt:                      Invoking gcal2txt.
* Utility tcal:                          Invoking tcal.
* Utility txt2gcal:                      Invoking txt2gcal.
* Valid date parts of appearance factors of days: Appearance factor of days.
* Valid date parts of lists of days:     Lists of days.
* Valid date parts of ranges of days:    Ranges of days.
* Valid date parts of repetition factors of days: Repetition factor of days.
* Version number, finding:               Common options.
* Visibility of date variables:          Date variables.
* Visibility of local date variables <1>: Date variables.
* Visibility of local date variables:    Fixed date options.
* Visibility of local text variables <1>: Fixed date options.
* Visibility of local text variables:    Text variables.
* Visibility of text variables:          Text variables.
* Week %?[DATE] special text <1>:        Week.
* Week %?[DATE] special text:            Special Texts Summary.
* Week numbers in calendar sheet:        Calendar options.
* Week's fixed dates:                    Fixed date options.
* Week, %k[DATE] special text:           Week.
* Weekday %?[DATE] special texts <1>:    Weekday.
* Weekday %?[DATE] special texts:        Special Texts Summary.
* Weekday name %?[DATE] special texts <1>: Weekday name.
* Weekday name %?[DATE] special texts:   Special Texts Summary.
* Weekday number, %([DATE] special text: Weekday.
* Weekday number, %)[DATE] special text: Weekday.
* Weekday number, %<[DATE] special text: Weekday.
* Weekday number, %>[DATE] special text: Weekday.
* Weekday number, %[[DATE] special text: Weekday.
* Weekday number, %][DATE] special text: Weekday.
* Weekday number, %E[DATE] special text: Weekday.
* Weekday number, %I[DATE] special text: Weekday.
* Weekday number, %J[DATE] special text: Weekday.
* Weekday number, %S[DATE] special text: Weekday.
* Weekday number, %{[DATE] special text: Weekday.
* Weekday number, %}[DATE] special text: Weekday.
* Whitespace character <1>:              Text part of a line.
* Whitespace character <2>:              Comment line.
* Whitespace character:                  Error Codes.
* Whitespace separator character <1>:    Options.
* Whitespace separator character <2>:    Include directives.
* Whitespace separator character <3>:    Options.
* Whitespace separator character:        Structure of resource file.
* Without standard holidays in eternal holiday list: Calendar options.
* Word boundaries, matching in regexp:   Regexp Operators.
* Word, regexp definition of:            Regexp Operators.
* Year %?[DATE] special texts <1>:       Special Texts Summary.
* Year %?[DATE] special texts:           Year.
* Year calendar sheet blocks, number of: Calendar options.
* Year calendar sheet, force output of:  Calendar options.
* Year difference value:                 Difference value.
* Year mode, single:                     Single commands.
* Year's fixed dates:                    Fixed date options.
* Year, %=[DATE] special text:           Year.
* Year, %Y[DATE] special text:           Year.
* ~ line break up character <1>:         Text part of a line.
* ~ line break up character:             Fixed date options.


