66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
package screen
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import (
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"bufio"
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"fmt"
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"os"
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"strconv"
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"strings"
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)
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// TermMessage sends a message to the user in the terminal. This usually occurs before
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// micro has been fully initialized -- ie if there is an error in the syntax highlighting
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// regular expressions
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// The function must be called when the Screen is not initialized
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// This will write the message, and wait for the user
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// to press and key to continue
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func TermMessage(msg ...interface{}) {
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screenb := TempFini()
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fmt.Println(msg...)
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fmt.Print("\nPress enter to continue")
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reader := bufio.NewReader(os.Stdin)
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reader.ReadString('\n')
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TempStart(screenb)
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}
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// TermPrompt prints a prompt and requests the user for a response
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// The result is matched against a list of options and the index of
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// the match is returned
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// If wait is true, the prompt re-prompts until a valid option is
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// chosen, otherwise if wait is false, -1 is returned for no match
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func TermPrompt(prompt string, options []string, wait bool) int {
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screenb := TempFini()
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idx := -1
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// same behavior as do { ... } while (wait && idx == -1)
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for ok := true; ok; ok = wait && idx == -1 {
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reader := bufio.NewReader(os.Stdin)
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fmt.Print(prompt)
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resp, _ := reader.ReadString('\n')
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resp = strings.TrimSpace(resp)
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for i, opt := range options {
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if resp == opt {
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idx = i
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}
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}
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if wait && idx == -1 {
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fmt.Println("\nInvalid choice.")
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}
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}
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TempStart(screenb)
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return idx
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}
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// TermError sends an error to the user in the terminal. Like TermMessage except formatted
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// as an error
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func TermError(filename string, lineNum int, err string) {
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TermMessage(filename + ", " + strconv.Itoa(lineNum) + ": " + err)
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}
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