92 lines
1.9 KiB
Go
92 lines
1.9 KiB
Go
// Copyright (c) 2016-2017 Daniel Oaks <daniel@danieloaks.net>
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// released under the MIT license
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package utils
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import (
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"errors"
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"fmt"
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"strings"
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"time"
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)
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const (
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IRCv3TimestampFormat = "2006-01-02T15:04:05.000Z"
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)
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var (
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ErrInvalidParams = errors.New("Invalid parameters")
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)
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// ArgsToStrings takes the arguments and splits them into a series of strings,
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// each argument separated by delim and each string bounded by maxLength.
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func ArgsToStrings(maxLength int, arguments []string, delim string) []string {
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var messages []string
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var buffer string
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for {
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if len(arguments) < 1 {
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break
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}
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if len(buffer) > 0 && maxLength < len(buffer)+len(delim)+len(arguments[0]) {
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messages = append(messages, buffer)
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buffer = ""
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continue
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}
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if len(buffer) > 1 {
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buffer += delim
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}
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buffer += arguments[0]
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arguments = arguments[1:]
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}
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if len(buffer) > 0 {
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messages = append(messages, buffer)
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}
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return messages
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}
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func StringToBool(str string) (result bool, err error) {
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switch strings.ToLower(str) {
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case "on", "true", "t", "yes", "y", "enabled":
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result = true
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case "off", "false", "f", "no", "n", "disabled":
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result = false
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default:
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err = ErrInvalidParams
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}
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return
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}
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// Checks that a parameter can be passed as a non-trailing, and returns "*"
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// if it can't. See #697.
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func SafeErrorParam(param string) string {
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if param == "" || param[0] == ':' || strings.IndexByte(param, ' ') != -1 {
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return "*"
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}
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return param
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}
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type IncompatibleSchemaError struct {
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CurrentVersion string
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RequiredVersion string
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}
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func (err *IncompatibleSchemaError) Error() string {
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return fmt.Sprintf("Database requires update. Expected schema v%s, got v%s", err.RequiredVersion, err.CurrentVersion)
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}
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func NanoToTimestamp(nanotime int64) string {
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return time.Unix(0, nanotime).UTC().Format(IRCv3TimestampFormat)
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}
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func BoolDefaultTrue(value *bool) bool {
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if value != nil {
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return *value
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}
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return true
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}
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