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-rwxr-xr-xexamples/scripts/hello57
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diff --git a/examples/scripts/hello b/examples/scripts/hello
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-#! /usr/local/bin/guile -s
-!#
-;;; Commentary:
-
-;;; This is the famous Hello-World-program, written for Guile. It is a
-;;; little bit enhanced in that it understands the command line options
-;;; `--help' (-h) and `--version' (-v), which print a short usage
-;;; decription or version information, respectively.
-
-;;; Author: Martin Grabmueller
-;;; Date: 2001-05-29
-
-;;; Code:
-
-(use-modules (ice-9 getopt-long))
-
-;; This is the grammar for the command line synopsis we expect.
-;;
-(define command-synopsis
- '((version (single-char #\v) (value #f))
- (help (single-char #\h) (value #f))))
-
-;; Display version information.
-;;
-(define (display-version)
- (display "hello 0.0.1\n"))
-
-;; Display the usage help message.
-;;
-(define (display-help)
- (display "Usage: hello [options...]\n")
- (display " --help, -h Show this usage information\n")
- (display " --version, -v Show version information\n"))
-
-;; Interpret options, if --help or --version was given, print out the
-;; requested information and exit. Otherwise, print the famous
-;; message.
-;;
-(define (main options)
- (let ((help-wanted (option-ref options 'help #f))
- (version-wanted (option-ref options 'version #f)))
- (if (or version-wanted help-wanted)
- (begin
- (if version-wanted
- (display-version))
- (if help-wanted
- (display-help)))
- (begin
- (display "Hello, World!") (newline)))))
-
-;; Call the main program with parsed command line options.
-;;
-(main (getopt-long (command-line) command-synopsis))
-
-;; Local variables:
-;; mode: scheme
-;; End: