mirror of
https://github.com/kanaka/mal.git
synced 2024-11-11 00:52:44 +03:00
51 lines
1.2 KiB
Smalltalk
51 lines
1.2 KiB
Smalltalk
String extend [
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String >> loadRelative [
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| scriptPath scriptDirectory |
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scriptPath := thisContext currentFileName.
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scriptDirectory := FilePath stripFileNameFor: scriptPath.
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FileStream fileIn: (FilePath append: self to: scriptDirectory)
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]
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]
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'readline.st' loadRelative.
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'util.st' loadRelative.
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'types.st' loadRelative.
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'reader.st' loadRelative.
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'printer.st' loadRelative.
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Object subclass: MAL [
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MAL class >> READ: input [
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^Reader readStr: input
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]
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MAL class >> EVAL: sexp [
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^sexp
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]
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MAL class >> PRINT: sexp [
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^Printer prStr: sexp printReadably: true
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]
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MAL class >> rep: input [
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^self PRINT: (self EVAL: (self READ: input))
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]
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]
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| input historyFile |
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historyFile := '.mal_history'.
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ReadLine readHistory: historyFile.
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[ input := ReadLine readLine: 'user> '. input isNil ] whileFalse: [
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input isEmpty ifFalse: [
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ReadLine addHistory: input.
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ReadLine writeHistory: historyFile.
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[ (MAL rep: input) displayNl ]
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on: MALEmptyInput do: [ #return ]
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on: MALError do:
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[ :err | ('error: ', err messageText) displayNl. #return ].
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]
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]
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'' displayNl.
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