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|
{ Base Utilities }
[set no [fn [x] [same x []]]]
[set id [fn [arg] arg]]
[set list [fn args args]]
[set catrev [fn [a b] [if a [catrev [tail a] [pair [head a] b]] b]]]
[set rev [fn [l] [catrev l []]]]
[set cat [fn [a b] [catrev [rev a] b]]]
[set map [fn [f l] [if l [pair [f [head l]] [map f [tail l]]]]]]
[set reduce [fn [f l] [if [no l] [] [if [no [tail l]] [head l]
[f [head l] [reduce f [tail l]]]
]]]]
{ Input-Output }
[set newline [str [list 10]]]
[set outint [fn [n]
[set zero 48]
[set minus 45]
[if [< n 0]
[do [out minus] [outint [neg n]]]
[if [< n 10]
[out [+ zero n]]
[do
[outint [div n 10]]
[out [+ zero [mod n 10]]]
]
]
]
]]
[set outstr [fn [str]
[set outstrat [fn [str i len] [if [no [same i len]] [do
[out [str i]]
[outstrat str [+ i 1] len]
]]]]
[outstrat str 0 [len str]]
]]
[set output [fn objs [map [fn [obj] [if
[same [type obj] 'int] [outint obj]
[same [type obj] 'str] [outstr obj]
]] objs]]]
[set instrlist [fn []
[set c [in]]
[if [no [same c 10]] [pair c [instrlist]]]
]]
[set instr [fn [] [str [instrlist]]]]
{ The Program }
[set screenstr [fn [str]
[set outstrat [fn [str i len] [if [no [same i len]] [do
[if [same [str i] ["\\" 0]] [output "\\"]]
[if [same [str i] ["\"" 0]] [output "\\"]]
[out [str i]]
[outstrat str [+ i 1] len]
]]]]
[outstrat str 0 [len str]]
]]
[set screenname [fn [str]
[set outstrat [fn [str i len] [if [no [same i len]] [do
[if [same [str i] ["\\" 0]] [output "\\"]]
[if [same [str i] [" " 0]] [output "\\"]]
[if [same [str i] ["[" 0]] [output "\\"]]
[if [same [str i] ["]" 0]] [output "\\"]]
[out [str i]]
[outstrat str [+ i 1] len]
]]]]
[outstrat str 0 [len str]]
]]
[set writeeach [fn [l] [if l [do
[write [head l]]
[if [tail l] [do
[output " "]
[writeeach [tail l]]
]]
]]]]
[set write [fn [obj] [if
[no obj] [output "[]"]
[same [type obj] 'int] [outint obj]
[same [type obj] 'str] [do [output "\""] [screenstr obj] [output "\""]]
[same [type obj] 'pair] [do [output "["] [writeeach obj] [output "]"]]
[same [type obj] 'name] [screenname [str obj]]
[same [type obj] 'base] [output "<base>"]
[same [type obj] 'int] [output obj]
[same [type obj] 'fn] [output "<fn>"]
[same [type obj] 'sx] [output "<sx>"]
]]]
[set linep [pair [] []]]
[set readcomment [fn [] [if
[same [head [head linep]] ["}" 0]] [sethead linep [tail [head linep]]]
[same [head [head linep]] ["{" 0]] [do
[sethead linep [tail [head linep]]]
[readcomment]
[readcomment]
]
[do
[sethead linep [tail [head linep]]]
[readcomment]
]
]]]
[set pairlist [fn [l] [if l [if [tail l]
[pair [head l] [pairlist [tail l]]]
[head l]
]]]]
[set readlist [fn [] [if
[same [head [head linep]] ["]" 0]] [sethead linep [tail [head linep]]]
[same [head [head linep]] [" " 0]] [do
[sethead linep [tail [head linep]]]
[readlist]
]
[do
[set res [readobj]]
[pair res [readlist]]
]
]]]
[set readint [fn [num]
[if [head [head linep]] [if [< 47 [head [head linep]] 58] [do
[set newnum [+ [* 10 num] [head [head linep]] -48]]
[sethead linep [tail [head linep]]]
[readint newnum]
] num] num]
]]
[set readname [fn []
[if [head [head linep]] [if [no [same [head [head linep]] [" " 0]]]
[if [no [same [head [head linep]] ["[" 0]]] [if [no [same [head [head linep]] ["]" 0]]] [do
[if [same [head [head linep]] ["\\" 0]] [sethead linep [tail [head linep]]]]
[set res [head [head linep]]]
[sethead linep [tail [head linep]]]
[pair res [readname]]
]]]
]]
]]
[set readstr [fn []
[if [head [head linep]] [if [no [same [head [head linep]] ["\"" 0]]][do
[if [same [head [head linep]] ["\\" 0]] [sethead linep [tail [head linep]]]]
[set res [head [head linep]]]
[sethead linep [tail [head linep]]]
[pair res [readstr]]
] [sethead linep [tail [head linep]]]]]
]]
[set readobj [fn [] [if
[same [head [head linep]] ["{" 0]] [do
[sethead linep [tail [head linep]]]
[readcomment]
[readobj]
]
[same [head [head linep]] [" " 0]] [do
[sethead linep [tail [head linep]]]
[readobj]
]
[same [head [head linep]] ["[" 0]] [do
[sethead linep [tail [head linep]]]
[readlist]
]
[same [head [head linep]] ["=" 0]] [if
[same [head [tail [head linep]]] ["[" 0]] [do
[sethead linep [tail [tail [head linep]]]]
[pairlist [readlist]]
]
[name [str [readname]]]
]
[same [head [head linep]] ["-" 0]] [if
[< 47 [head [tail [head linep]]] 58] [do
[sethead linep [tail [head linep]]]
[neg [readint 0]]
]
[name [str [readname]]]
]
[same [head [head linep]] ["'" 0]] [do
[sethead linep [tail [head linep]]]
[list quote [readobj]]
]
[same [head [head linep]] ["\"" 0]] [do
[sethead linep [tail [head linep]]]
[str [readstr]]
]
[< 47 [head [head linep]] 58] [readint 0]
[name [str [readname line]]]
]]]
[set read [fn [usercontext]
[output "> "]
[sethead linep [instrlist]]
[set res [run [readobj] usercontext]]
[write [head res]]
[output newline]
[read [tail res]]
]]
[output "-= CSX interpreter loaded =-" newline]
[read [newcontext]]
|
