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Gcal 3.01

Table of Contents

1. Preface
2. Gcal Introduction
3. Invoking gcal

3.1 Command line arguments

3.1.1 Options

3.1.1.1 Common options
3.1.1.2 Global options
3.1.1.3 Calendar options
3.1.1.4 Fixed date options

3.1.2 Response file
3.1.3 Actual date modifier
3.1.4 Commands

3.1.4.1 Single commands
3.1.4.2 3-Month mode commands
3.1.4.3 Lists of commands
3.1.4.4 Ranges of commands

3.2 The GCAL environment variable

4. Eternal Holidays
5. Fixed Dates

5.1 Resource file

5.1.1 Structure of resource file
5.1.2 Date part of a line
5.1.3 Further date part attributes

5.1.3.1 Lists of days
5.1.3.2 Ranges of days
5.1.3.3 Repetition factor of days
5.1.3.4 Appearance factor of days

5.1.4 Text part of a line
5.1.5 %?... Special Texts
5.1.6 Comment line
5.1.7 Include directives
5.1.8 Date variables
5.1.9 Text variables

5.2 Resource file examples

A. Genesis of the Gregorian Calendar
B. Gcal Utilities

B.1 Invoking tcal
B.2 Invoking txt2gcal
B.3 Invoking gcal2txt

C. Aspects in Internationalization
D. Metasymbols
E. Regular Expressions

E.1 How to Use Regular Expressions
E.2 Regular Expression Operators

F. Summary of all Regular Expressions
G. %?... Special Texts

G.1 %?... special texts for date exclusion

G.1.1 Exclusions with date argument %?[date] special texts

G.1.1.1 Inclusive date period %i[date][#[date]] special text
G.1.1.2 Exclusive date period %e[date][#[date]] special text

G.1.2 Exclusions without any argument %? special texts

G.1.2.1 Inclusive day period %? special texts
G.1.2.2 Exclusive day period %? special texts

G.2 %?... special texts for text replacement

G.2.1 Replacements with date argument %?[date] special texts

G.2.1.1 Weekday name %[format]K[date] special text
G.2.1.2 Weekday number %[format]?[date] special texts
G.2.1.3 Day-of-year number %[format]N[date] special text
G.2.1.4 Day number %[format]D[date] special text
G.2.1.5 Week number %k[date] special text
G.2.1.6 Month name %[format]U[date] special text
G.2.1.7 Month number %[format]M[date] special text
G.2.1.8 Year number %[format]Y[date] special text
G.2.1.9 Moon phase %[format]?[date] special texts
G.2.1.10 Biorhythm %?[date] special texts
G.2.1.11 Difference value %[format]?[date] special texts

G.2.2 Replacements with other argument %[format]?[argument] special texts

G.2.2.1 Actual clocktime %[format]?[argument] special texts
G.2.2.2 Textual date %n[argument] special text
G.2.2.3 Julian day number %[format]j[argument] special text
G.2.2.4 Geographical distance and course angle %[format]bargument special text
G.2.2.5 Sun data %[format]?argument special texts
G.2.2.6 Moon data %[format]?argument special texts
G.2.2.7 Environment variable %[format]-[argument] special text

G.2.3 Replacements without any argument %? special texts

G.2.3.1 Difference value %[format]? special texts
G.2.3.2 Highlighting %? special texts

G.3 Shell command %![argument] special text

H. Summary of all %?... Special Texts
I. Obsolete Special Texts and Format Elements

I.1 Table of Obsolete Special Texts
I.2 Table of Obsolete Date Format Elements
I.3 Table of Obsolete Date Formats

J. Format Instruction
K. Coding Scheme

K.1 Coding Scheme Table 1
K.2 Coding Scheme Table 2

L. Environment Variables
M. Error Codes
N. Glossary
Command Line Argument Index
Environment Variable Index
Table Index
Concept Index