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// Data types for the Miller REPL.
package repl
import (
"bufio"
"os"
"github.com/johnkerl/miller/v6/pkg/cli"
"github.com/johnkerl/miller/v6/pkg/dsl/cst"
"github.com/johnkerl/miller/v6/pkg/input"
"github.com/johnkerl/miller/v6/pkg/output"
"github.com/johnkerl/miller/v6/pkg/runtime"
"github.com/johnkerl/miller/v6/pkg/types"
)
type ASTPrintMode int
const (
ASTPrintNone ASTPrintMode = iota
ASTPrintParex
ASTPrintParexOneLine
ASTPrintIndent
)
type Repl struct {
// From os.Args[] as we were invoked. These are for printing error messages.
exeName string
replName string
// Prompt1 is the main prompt, like $PS1. Prompt2 is for
// multi-line-input mode with "<" ... ">" or "<<" ... ">>".
inputIsTerminal bool
showStartupBanner bool
showPrompts bool
prompt1 string
prompt2 string
astPrintMode ASTPrintMode
doWarnings bool
cstRootNode *cst.RootNode
options *cli.TOptions
readerChannel chan []*types.RecordAndContext // list of *types.RecordAndContext
errorChannel chan error
downstreamDoneChannel chan bool
recordReader input.IRecordReader
recordWriter output.IRecordWriter
// These are for record-writer output, nominally to os.Stdout, but perhaps
// with a redirect. We need to keep all three -- the *bufio.Writer to write
// to, the *os.File for Close() when it's not os.Stdout, since bufio.Writer
// doesn't implement Close(), and the file name to print errors on Close()
// (e.g. permissions, or disk-full).
recordOutputFileName string
recordOutputStream *os.File
bufferedRecordOutputStream *bufio.Writer
runtimeState *runtime.State
// For control-C handling
sysToSignalHandlerChannel chan os.Signal // Our signal handler reads system notification here
appSignalNotificationChannel chan bool // Our signal handler writes this for our app to poll
}
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