! Copyright (C) 2021 John Benediktsson
! See http://factorcode.org/license.txt for BSD license
-USING: accessors ascii assocs combinators
-combinators.short-circuit formatting gemini gemini.private io
-io.encodings.string kernel math math.parser namespaces present
-sequences splitting urls ;
+USING: accessors arrays assocs combinators
+combinators.short-circuit command-loop formatting gemini
+gemini.private io io.directories io.encodings.string
+io.encodings.utf8 io.files io.files.temp io.launcher io.pipes
+kernel math math.parser namespaces present sequences splitting
+system urls webbrowser ;
IN: gemini.cli
-CONSTANT: ABBREVS H{
- { "b" "back" }
- { "f" "forward" }
- { "g" "go" }
- { "h" "history" }
- { "hist" "history" }
- { "q" "quit" }
- { "r" "reload" }
- { "u" "up" }
-}
+CONSTANT: DEFAULT-URL "gemini://gemini.circumlunar.space"
CONSTANT: HISTORY V{ }
CONSTANT: LINKS V{ }
+CONSTANT: STACK V{ }
+CONSTANT: PAGE V{ }
CONSTANT: URL V{ }
+: find-url ( url items -- i item )
+ [ dup array? [ first ] when = ] with find ;
+
+: nth-url ( i items -- url )
+ ?nth dup array? [ first ] when ;
+
+: stack-url ( delta -- url )
+ URL ?first STACK find-url drop
+ [ + STACK nth-url ] [ drop f ] if* ;
+
+: add-stack ( args -- )
+ dup dup array? [ first ] when
+ dup STACK find-url drop [
+ 2drop
+ ] [
+ URL ?first STACK find-url drop [
+ over PAGE find-url drop [
+ 1 + dup STACK nth-url rot = [
+ 2drop
+ ] [
+ STACK [ length ] [ delete-slice ] bi
+ STACK push
+ STACK length 10 > [
+ 0 STACK remove-nth! drop
+ ] when
+ ] if
+ ] [
+ 2drop
+ STACK push
+ ] if
+ ] [
+ drop
+ STACK delete-all
+ STACK push
+ ] if*
+ ] if ;
+
: add-history ( args -- )
HISTORY dup length 10 > [
0 swap remove-nth!
] when dupd remove! push ;
-: gemini-history ( args -- )
- drop HISTORY [ 1 + swap "[%s] %s\n" printf ] each-index
- LINKS delete-all HISTORY LINKS push-all ;
+: print-links ( links verbose? -- )
+ LINKS delete-all over LINKS push-all
+ '[
+ 1 + swap [ dup array? [ first ] when URL ?first = [ drop "*" ] when ] keep
+ _ [ dup array? [ dup second empty? not ] [ f ] if ] [ f ] if [
+ first2 swap "[%s] %s (%s)\n" printf
+ ] [
+ dup array? [ first2 ] [ f ] if
+ dup empty? -rot ? "[%s] %s\n" printf
+ ] if
+ ] each-index ;
+
+: gemini-history ( -- )
+ HISTORY t print-links ;
+
+: gemini-print ( url body meta -- )
+ f pre [
+ PAGE delete-all
+ gemini-charset decode split-lines [
+ { [ pre get not ] [ "=>" ?head ] } 0&& [
+ swap gemini-link present over 2array PAGE push
+ PAGE length swap "[%s] %s\n" printf
+ ] [
+ gemini-line.
+ ] if
+ ] with each
+ LINKS delete-all PAGE LINKS push-all
+ ] with-variable ;
: gemini-get ( args -- )
- dup 0 URL set-nth
+ dup URL set-first
>url dup gemini [ drop ] 2dip swap "text/" ?head [
- f pre [
- LINKS delete-all
- gemini-charset decode string-lines [
- { [ pre get not ] [ "=>" ?head ] } 0&& [
- swap gemini-link present LINKS push
- LINKS length swap "[%s] %s\n" printf
- ] [
- gemini-line.
- ] if
- ] with each
- ] with-variable
+ "gemini.txt" temp-file
+ [ utf8 [ gemini-print ] with-file-writer ]
+ [ utf8 file-contents print ] bi
] [
"ERROR: Cannot display '" "'" surround print 2drop
] if ;
: gemini-go ( args -- )
- [ "gemini://gemini.circumlunar.space" ] when-empty
- dup "gemini://" head? [ "gemini://" prepend ] unless
- dup add-history gemini-get ;
+ present [ DEFAULT-URL ] when-empty
+ { [ dup "://" subseq-of? ] [ "gemini://" head? ] } 1||
+ [ "gemini://" prepend ] unless
+ dup "gemini://" head? [
+ [ add-history ] [ add-stack ] [ gemini-get ] tri
+ ] [ open-url ] if ;
-: gemini-reload ( args -- )
- drop HISTORY ?last gemini-go ;
+: gemini-reload ( -- )
+ URL ?first gemini-go ;
-: gemini-back ( args -- )
- drop URL ?first HISTORY index [
- 1 - HISTORY ?nth [ gemini-get ] when*
- ] when* ;
+: gemini-back ( -- )
+ -1 stack-url [ gemini-get ] when* ;
-: gemini-forward ( args -- )
- drop URL ?first HISTORY index [
- 1 + HISTORY ?nth [ gemini-get ] when*
- ] when* ;
+: gemini-forward ( -- )
+ 1 stack-url [ gemini-get ] when* ;
-: gemini-up ( args -- )
- drop URL ?first [
+: gemini-up ( -- )
+ URL ?first [
>url f >>query f >>anchor
- [ "/" ?tail drop "/" split1-last drop "/" append ] change-path
- present gemini-go
+ [ dup "/" tail? "./../" "./" ? url-append-path ] change-path
+ gemini-go
] when* ;
-: gemini-cmd ( cmd -- )
- " " split1 swap >lower ABBREVS ?at drop {
- { "history" [ gemini-history ] }
- { "go" [ gemini-go ] }
- { "reload" [ gemini-reload ] }
- { "back" [ gemini-back ] }
- { "forward" [ gemini-forward ] }
- { "up" [ gemini-up ] }
- { "" [ drop ] }
- [
- dup string>number [ 1 - LINKS ?nth ] [ f ] if* [
- 2nip gemini-go
- ] [
- "ERROR: Unknown command '" "'" surround print drop
- ] if*
- ]
- } case flush ;
+: gemini-less ( -- )
+ "gemini.txt" temp-file dup file-exists? [
+ "less" swap 2array try-process
+ ] [ drop ] if ;
+
+ : gemini-ls ( args -- )
+ [ PAGE ] [ "-l" = ] bi* print-links ;
+
+: gemini-quit ( -- )
+ "gemini.txt" temp-file ?delete-file 0 exit ;
+
+: gemini-url ( -- )
+ URL ?first [ print ] when* ;
+
+: gemini-root ( -- )
+ URL ?first [ >url "/" >>path gemini-go ] when* ;
+
+: gemini-shell ( args -- )
+ "|" split "gemini.txt" temp-file dup file-exists? [
+ "cat" swap 2array prefix run-pipeline drop
+ ] [ 2drop ] if ;
+
+CONSTANT: COMMANDS {
+ T{ command
+ { name "back" }
+ { quot [ drop gemini-back ] }
+ { help "Go back to the previous Gemini URL." }
+ { abbrevs { "b" } } }
+ T{ command
+ { name "forward" }
+ { quot [ drop gemini-forward ] }
+ { help "Go forward to the next Gemini URL." }
+ { abbrevs { "f" } } }
+ T{ command
+ { name "history" }
+ { quot [ drop gemini-history ] }
+ { help "Display recently viewed Gemini URLs." }
+ { abbrevs { "h" "hist" } } }
+ T{ command
+ { name "less" }
+ { quot [ drop gemini-less ] }
+ { help "View the most recent Gemini URL in a pager." }
+ { abbrevs { "l" } } }
+ T{ command
+ { name "ls" }
+ { quot [ gemini-ls ] }
+ { help "List the currently available links." }
+ { abbrevs f } }
+ T{ command
+ { name "go" }
+ { quot [ gemini-go ] }
+ { help "Go to a Gemini URL" }
+ { abbrevs { "g" } } }
+ T{ command
+ { name "gus" }
+ { quot [ drop "gemini://gus.guru/search" gemini-go ] }
+ { help "Submit a query to the GUS search engine." }
+ { abbrevs f } }
+ T{ command
+ { name "up" }
+ { quot [ drop gemini-up ] }
+ { help "Go up one directory from the recent Gemini URL." }
+ { abbrevs { "u" } } }
+ T{ command
+ { name "url" }
+ { quot [ drop gemini-url ] }
+ { help "Print the most recent Gemini URL." }
+ { abbrevs f } }
+ T{ command
+ { name "reload" }
+ { quot [ drop gemini-reload ] }
+ { help "Reload the most recent Gemini URL." }
+ { abbrevs { "r" } } }
+ T{ command
+ { name "root" }
+ { quot [ drop gemini-root ] }
+ { help "Navigate to the most recent Gemini URL's root." }
+ { abbrevs f } }
+ T{ command
+ { name "shell" }
+ { quot [ gemini-shell ] }
+ { help "'cat' the most recent Gemini URL through a shell." }
+ { abbrevs { "!" } } }
+ T{ command
+ { name "quit" }
+ { quot [ drop gemini-quit ] }
+ { help "Quit the program." }
+ { abbrevs { "q" "exit" } } }
+}
+
+TUPLE: gemini-command-loop < command-loop ;
+
+M: gemini-command-loop missing-command
+ over string>number [ 1 - LINKS ?nth ] [ f ] if* [
+ [ add-history ]
+ [ add-stack ]
+ [ dup array? [ first ] when gemini-get 3drop ] tri
+ ] [
+ call-next-method
+ ] if* ;
: gemini-main ( -- )
- "Welcome to Project Gemini!" print flush [
- "GEMINI> " write flush readln
- [ gemini-cmd t ] [ f ] if*
- ] loop ;
+ "Welcome to Project Gemini!" "GEMINI>"
+ gemini-command-loop new-command-loop
+ COMMANDS [ over add-command ] each
+ run-command-loop ;
MAIN: gemini-main
projects / factor.git / blobdiff