mirror of
https://github.com/kanaka/mal.git
synced 2024-09-11 13:55:55 +03:00
48 lines
1.6 KiB
Dart
48 lines
1.6 KiB
Dart
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import 'types.dart';
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String pr_str(MalType data, {bool print_readably: true}) {
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if (data is MalSymbol) {
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return data.value;
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} else if (data is MalInt) {
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return '${data.value}';
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} else if (data is MalList) {
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var printedElements =
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data.elements.map((e) => pr_str(e, print_readably: print_readably));
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return '(${printedElements.join(" ")})';
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} else if (data is MalVector) {
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var printedElements =
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data.elements.map((e) => pr_str(e, print_readably: print_readably));
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return '[${printedElements.join(" ")}]';
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} else if (data is MalHashMap) {
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var printedElements = <String>[];
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data.value.forEach((key, value) {
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printedElements.add(pr_str(key, print_readably: print_readably));
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printedElements.add(pr_str(value, print_readably: print_readably));
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});
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return '{${printedElements.join(" ")}}';
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} else if (data is MalString) {
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if (print_readably) {
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var readableValue = data.value
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.replaceAll('\\', r'\\')
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.replaceAll('\n', r'\n')
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.replaceAll('\"', r'\"');
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return '"$readableValue"';
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} else {
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return '${data.value}';
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}
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} else if (data is MalKeyword) {
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return ':${data.value}';
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} else if (data is MalBool) {
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return '${data.value}';
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} else if (data is MalNil) {
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return 'nil';
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} else if (data is MalBuiltin) {
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return '#<built in function>';
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} else if (data is MalClosure) {
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return '#<function>';
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} else if (data is MalAtom) {
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return "(atom ${pr_str(data.value, print_readably: print_readably)})";
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}
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throw new ArgumentError("Unrecognized type: ${data.runtimeType}");
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}
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