38 lines
603 B
Go
38 lines
603 B
Go
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package runner
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import (
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"bufio"
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"fmt"
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"os"
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)
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func RunPrompt() {
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s := bufio.NewScanner(os.Stdin)
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fmt.Print("> ")
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for s.Scan() {
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line := s.Text()
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Run(line)
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// TODO: resed hadError wherever it is set.
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fmt.Print("> ")
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}
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}
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func RunFile(path string) error {
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fBytes, err := os.ReadFile(path)
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if err != nil {
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return fmt.Errorf("could not read script file: %w", err)
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}
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Run(string(fBytes))
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// TODO: check hadError and exit with a 65 code if so.
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return nil
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}
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func Run(source string) {
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s := NewScanner(source)
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tokens := s.ScanTokens()
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for _, t := range tokens {
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fmt.Println(t)
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}
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}
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