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Path ops: isdir and absolute #126

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Jan 1, 2025
Merged

Path ops: isdir and absolute #126

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23 changes: 23 additions & 0 deletions src/aya/ext/sys/SystemInstructionStore.java
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
import aya.instruction.named.NamedOperator;
import aya.obj.Obj;
import aya.obj.list.List;
import aya.obj.number.Num;
import aya.util.FileUtils;

public class SystemInstructionStore implements NamedInstructionStore {
Expand Down Expand Up @@ -44,6 +45,17 @@ public void execute(BlockEvaluator blockEvaluator) {
}
}
},

// Is dir?
new NamedOperator("sys.isdir", "true if the path exists and is a directory") {
@Override
public void execute(BlockEvaluator blockEvaluator) {
final String path_str = blockEvaluator.pop().str();
File file = FileUtils.resolvePath(path_str).toFile();
blockEvaluator.push(Num.fromBool(file.exists() && file.isDirectory()));
}
},


// Get working dir
new NamedOperator("sys.wd", "get absolute path of working dir") {
Expand Down Expand Up @@ -154,6 +166,17 @@ public void execute(BlockEvaluator blockEvaluator) {
blockEvaluator.push(List.fromString(FileUtils.resolveHome(arg.str())));
}
},


// Absolute Path
new NamedOperator("sys.abspath", "convert path string to absolute path. Normalize the path if '.' or '..' specifiers exist") {
@Override
public void execute(BlockEvaluator blockEvaluator) {
final String path_str = blockEvaluator.pop().str();
final Path p = FileUtils.resolvePath(path_str).normalize();
blockEvaluator.push(List.fromString( p.toFile().getAbsolutePath()) );
}
},

// Change the prompt text
new NamedOperator("sys.alterprompt", "change the prompt text") {
Expand Down
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