timestamp

package

v1.300071.0 Latest Latest Go to latest Published: Jul 22, 2026 License: MIT Imports: 1 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/aws/amazon-cloudwatch-agent

Links

Documentation ¶

Index ¶

Variables
func BuildLayout(format string) string
func BuildRegex(format string) string
func BuildRegexWithNamedCaptureGroup(format string) string
func ReplaceAll(input string, replacements map[string]string) string

Constants ¶

This section is empty.

Variables ¶

View Source

var FormatLayoutMap = map[string]string{
	"%B":  "January",
	"%b":  "Jan",
	"%-m": "1",
	"%m":  "01",
	"%A":  "Monday",
	"%a":  "Mon",
	"%-d": "_2",
	"%d":  "_2",
	"%H":  "15",
	"%-I": "3",
	"%I":  "03",
	"%-M": "4",
	"%M":  "04",
	"%-S": "5",
	"%S":  "05",
	"%Y":  "2006",
	"%y":  "06",
	"%p":  "PM",
	"%Z":  "MST",
	"%z":  "-0700",
	"%f":  ".000",
}

FormatLayoutMap maps strftime directives to Go reference time layout strings.

View Source

var FormatRegexMap = map[string]string{
	"%B":  `\w{7}`,
	"%b":  `\w{3}`,
	"%-m": `\s{0,1}\d{1,2}`,
	"%m":  `\s{0,1}\d{1,2}`,
	"%A":  `\w{6,9}`,
	"%a":  `\w{3}`,
	"%-d": `\s{0,1}\d{1,2}`,
	"%d":  `\s{0,1}\d{1,2}`,
	"%H":  `\d{2}`,
	"%-I": `\d{1,2}`,
	"%I":  `\d{2}`,
	"%-M": `\d{1,2}`,
	"%M":  `\d{2}`,
	"%-S": `\d{1,2}`,
	"%S":  `\d{2}`,
	"%Y":  `\d{4}`,
	"%y":  `\d{2}`,
	"%p":  `\w{2}`,
	"%Z":  `\w{3}`,
	"%z":  `[+-]\d{4}`,
	"%f":  `(\d{1,9})`,
}

FormatRegexMap maps strftime directives to regex patterns for timestamp extraction.

View Source

var RegexEscapeMap = map[string]string{
	"^": `\^`,
	".": `\.`,
	"*": `\*`,
	"?": `\?`,
	"+": `\+`,
	"|": `\|`,
	"[": `\[`,
	"]": `\]`,
	"(": `\(`,
	")": `\)`,
	"{": `\{`,
	"}": `\}`,
	"$": `\$`,
}

RegexEscapeMap escapes characters that are special in regex but normal in the user's timestamp format string.

Functions ¶

func BuildLayout ¶

func BuildLayout(format string) string

BuildLayout converts a strftime format string to a Go time layout string.

func BuildRegex ¶

func BuildRegex(format string) string

BuildRegex converts a strftime format string to a regex pattern. If the format starts with "%-m" or "%-d", the leading \s{0,1} is stripped because:

"%-m %-d %H:%M:%S" would produce regex "(\s{0,1}\d{1,2} \s{0,1}\d{1,2} \d{2}:\d{2}:\d{2})"
and layout "1 _2 15:04:05". The timestamp " 2 1 07:10:06" matches the regex but not the
layout. Stripping the prefix makes the regex and layout consistent.

func BuildRegexWithNamedCaptureGroup ¶

func BuildRegexWithNamedCaptureGroup(format string) string

BuildRegexWithNamedCaptureGroup converts a strftime format string to a regex with a named capture group (?P<timestamp>...).

func ReplaceAll ¶

func ReplaceAll(input string, replacements map[string]string) string

ReplaceAll replaces all occurrences of keys in the replacements map with their values.

Types ¶

This section is empty.

Source Files ¶

View all Source files

timestamp.go

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