53 lines
1.0 KiB
Go
53 lines
1.0 KiB
Go
package repl
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import (
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"fmt"
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"strings"
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. "godb/internals/buffer"
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. "godb/internals/vm"
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)
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func PrintConsole() {
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fmt.Print("godb > ")
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}
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func Run() {
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inputBuffer := NewInputBuffer()
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statement := NewStatement()
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table := NewTable()
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for {
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PrintConsole()
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inputBuffer.ReadConsole()
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if len(inputBuffer.Buffer) > 0 && strings.HasPrefix(inputBuffer.Buffer, ".") {
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switch DoMetaCommands(inputBuffer) {
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case MetaCommandSuccess:
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continue
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case MetaCommandUnrecognised:
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fmt.Printf("unrecognised command %v\n", inputBuffer.Buffer)
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continue
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}
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}
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switch statement.PrepareStatements(inputBuffer) {
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case PrepareSuccess:
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//todo
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case PrepareSyntaxError:
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fmt.Println("Syntax error, could not parse statement")
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case PrepareUnrecognised:
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fmt.Printf("Unrecognised keyword at the start of '%s'.\n", inputBuffer.Buffer)
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}
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switch statement.ExecuteStatement(table) {
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case ExecuteSuccess:
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fmt.Println("Executed.")
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case ExecuteTableFull:
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fmt.Println("Error: Table is full")
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case ExecuteFail:
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//todo
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}
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}
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}
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