mirror of
https://github.com/KevinMidboe/linguist.git
synced 2025-10-29 17:50:22 +00:00
Red language (red-lang.org)
This commit is contained in:
Oldes
257
samples/Red/example.red
Normal file
257
samples/Red/example.red
Normal file
@@ -0,0 +1,257 @@
|
||||
Red [
|
||||
Title: "Red console"
|
||||
Author: ["Nenad Rakocevic" "Kaj de Vos"]
|
||||
File: %console.red
|
||||
Tabs: 4
|
||||
Rights: "Copyright (C) 2012-2013 Nenad Rakocevic. All rights reserved."
|
||||
License: {
|
||||
Distributed under the Boost Software License, Version 1.0.
|
||||
See https://github.com/dockimbel/Red/blob/master/BSL-License.txt
|
||||
}
|
||||
Purpose: "Just some code for testing Pygments colorizer"
|
||||
Language: http://www.red-lang.org/
|
||||
]
|
||||
|
||||
#system-global [
|
||||
#either OS = 'Windows [
|
||||
#import [
|
||||
"kernel32.dll" stdcall [
|
||||
AttachConsole: "AttachConsole" [
|
||||
processID [integer!]
|
||||
return: [integer!]
|
||||
]
|
||||
SetConsoleTitle: "SetConsoleTitleA" [
|
||||
title [c-string!]
|
||||
return: [integer!]
|
||||
]
|
||||
ReadConsole: "ReadConsoleA" [
|
||||
consoleInput [integer!]
|
||||
buffer [byte-ptr!]
|
||||
charsToRead [integer!]
|
||||
numberOfChars [int-ptr!]
|
||||
inputControl [int-ptr!]
|
||||
return: [integer!]
|
||||
]
|
||||
]
|
||||
]
|
||||
line-buffer-size: 16 * 1024
|
||||
line-buffer: allocate line-buffer-size
|
||||
][
|
||||
#switch OS [
|
||||
MacOSX [
|
||||
#define ReadLine-library "libreadline.dylib"
|
||||
]
|
||||
#default [
|
||||
#define ReadLine-library "libreadline.so.6"
|
||||
#define History-library "libhistory.so.6"
|
||||
]
|
||||
]
|
||||
#import [
|
||||
ReadLine-library cdecl [
|
||||
read-line: "readline" [ ; Read a line from the console.
|
||||
prompt [c-string!]
|
||||
return: [c-string!]
|
||||
]
|
||||
rl-bind-key: "rl_bind_key" [
|
||||
key [integer!]
|
||||
command [integer!]
|
||||
return: [integer!]
|
||||
]
|
||||
rl-insert: "rl_insert" [
|
||||
count [integer!]
|
||||
key [integer!]
|
||||
return: [integer!]
|
||||
]
|
||||
]
|
||||
#if OS <> 'MacOSX [
|
||||
History-library cdecl [
|
||||
add-history: "add_history" [ ; Add line to the history.
|
||||
line [c-string!]
|
||||
]
|
||||
]
|
||||
]
|
||||
]
|
||||
|
||||
rl-insert-wrapper: func [
|
||||
[cdecl]
|
||||
count [integer!]
|
||||
key [integer!]
|
||||
return: [integer!]
|
||||
][
|
||||
rl-insert count key
|
||||
]
|
||||
|
||||
]
|
||||
]
|
||||
|
||||
Windows?: system/platform = 'Windows
|
||||
|
||||
read-argument: routine [
|
||||
/local
|
||||
args [str-array!]
|
||||
str [red-string!]
|
||||
][
|
||||
if system/args-count <> 2 [
|
||||
SET_RETURN(none-value)
|
||||
exit
|
||||
]
|
||||
args: system/args-list + 1 ;-- skip binary filename
|
||||
str: simple-io/read-txt args/item
|
||||
SET_RETURN(str)
|
||||
]
|
||||
|
||||
init-console: routine [
|
||||
str [string!]
|
||||
/local
|
||||
ret
|
||||
][
|
||||
#either OS = 'Windows [
|
||||
;ret: AttachConsole -1
|
||||
;if zero? ret [print-line "ReadConsole failed!" halt]
|
||||
|
||||
ret: SetConsoleTitle as c-string! string/rs-head str
|
||||
if zero? ret [print-line "SetConsoleTitle failed!" halt]
|
||||
][
|
||||
rl-bind-key as-integer tab as-integer :rl-insert-wrapper
|
||||
]
|
||||
]
|
||||
|
||||
input: routine [
|
||||
prompt [string!]
|
||||
/local
|
||||
len ret str buffer line
|
||||
][
|
||||
#either OS = 'Windows [
|
||||
len: 0
|
||||
print as c-string! string/rs-head prompt
|
||||
ret: ReadConsole stdin line-buffer line-buffer-size :len null
|
||||
if zero? ret [print-line "ReadConsole failed!" halt]
|
||||
len: len + 1
|
||||
line-buffer/len: null-byte
|
||||
str: string/load as c-string! line-buffer len
|
||||
][
|
||||
line: read-line as c-string! string/rs-head prompt
|
||||
if line = null [halt] ; EOF
|
||||
|
||||
#if OS <> 'MacOSX [add-history line]
|
||||
|
||||
str: string/load line 1 + length? line
|
||||
; free as byte-ptr! line
|
||||
]
|
||||
SET_RETURN(str)
|
||||
]
|
||||
|
||||
count-delimiters: function [
|
||||
buffer [string!]
|
||||
return: [block!]
|
||||
][
|
||||
list: copy [0 0]
|
||||
c: none
|
||||
|
||||
foreach c buffer [
|
||||
case [
|
||||
escaped? [
|
||||
escaped?: no
|
||||
]
|
||||
in-comment? [
|
||||
switch c [
|
||||
#"^/" [in-comment?: no]
|
||||
]
|
||||
]
|
||||
'else [
|
||||
switch c [
|
||||
#"^^" [escaped?: yes]
|
||||
#";" [if zero? list/2 [in-comment?: yes]]
|
||||
#"[" [list/1: list/1 + 1]
|
||||
#"]" [list/1: list/1 - 1]
|
||||
#"{" [list/2: list/2 + 1]
|
||||
#"}" [list/2: list/2 - 1]
|
||||
]
|
||||
]
|
||||
]
|
||||
]
|
||||
list
|
||||
]
|
||||
|
||||
do-console: function [][
|
||||
buffer: make string! 10000
|
||||
prompt: red-prompt: "red>> "
|
||||
mode: 'mono
|
||||
|
||||
switch-mode: [
|
||||
mode: case [
|
||||
cnt/1 > 0 ['block]
|
||||
cnt/2 > 0 ['string]
|
||||
'else [
|
||||
prompt: red-prompt
|
||||
do eval
|
||||
'mono
|
||||
]
|
||||
]
|
||||
prompt: switch mode [
|
||||
block ["[^-"]
|
||||
string ["{^-"]
|
||||
mono [red-prompt]
|
||||
]
|
||||
]
|
||||
|
||||
eval: [
|
||||
code: load/all buffer
|
||||
|
||||
unless tail? code [
|
||||
set/any 'result do code
|
||||
|
||||
unless unset? :result [
|
||||
if 67 = length? result: mold/part :result 67 [ ;-- optimized for width = 72
|
||||
clear back tail result
|
||||
append result "..."
|
||||
]
|
||||
print ["==" result]
|
||||
]
|
||||
]
|
||||
clear buffer
|
||||
]
|
||||
|
||||
while [true][
|
||||
unless tail? line: input prompt [
|
||||
append buffer line
|
||||
cnt: count-delimiters buffer
|
||||
|
||||
either Windows? [
|
||||
remove skip tail buffer -2 ;-- clear extra CR (Windows)
|
||||
][
|
||||
append buffer lf ;-- Unix
|
||||
]
|
||||
|
||||
switch mode [
|
||||
block [if cnt/1 <= 0 [do switch-mode]]
|
||||
string [if cnt/2 <= 0 [do switch-mode]]
|
||||
mono [do either any [cnt/1 > 0 cnt/2 > 0][switch-mode][eval]]
|
||||
]
|
||||
]
|
||||
]
|
||||
]
|
||||
|
||||
q: :quit
|
||||
|
||||
if script: read-argument [
|
||||
script: load script
|
||||
either any [
|
||||
script/1 <> 'Red
|
||||
not block? script/2
|
||||
][
|
||||
print "*** Error: not a Red program!"
|
||||
][
|
||||
do skip script 2
|
||||
]
|
||||
quit
|
||||
]
|
||||
|
||||
init-console "Red Console"
|
||||
|
||||
print {
|
||||
-=== Red Console alpha version ===-
|
||||
(only ASCII input supported)
|
||||
}
|
||||
|
||||
do-console
|
||||
Reference in New Issue
Block a user