picocli

Enum CommandLine.Help.Ansi

java.lang.Object

java.lang.Enum<CommandLine.Help.Ansi>

picocli.CommandLine.Help.Ansi

All Implemented Interfaces:

Serializable, Comparable<CommandLine.Help.Ansi>

Enclosing class:

CommandLine.Help

public static enum CommandLine.Help.Ansi
extends Enum<CommandLine.Help.Ansi>

Provides methods and inner classes to support using ANSI escape codes in usage help messages.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	CommandLine.Help.Ansi.IStyle Defines the interface for an ANSI escape sequence.
static class	CommandLine.Help.Ansi.Style A set of pre-defined ANSI escape code styles and colors, and a set of convenience methods for parsing text with embedded markup style names, as well as convenience methods for converting styles to strings with embedded escape codes.
class	CommandLine.Help.Ansi.Text Encapsulates rich text with styles and colors.

Enum Constant Summary

Enum Constants

Enum Constant and Description
AUTO Only emit ANSI escape codes if the platform supports it and system property "picocli.ansi" is not set to any value other than "true" (case insensitive).
OFF Forced OFF: never emit ANSI escape code regardless of the platform.
ON Forced ON: always emit ANSI escape code regardless of the platform.

Method Summary

Modifier and Type	Method and Description
CommandLine.Help.Ansi.Text	apply(String plainText, List<CommandLine.Help.Ansi.IStyle> styles) Deprecated. use CommandLine.Help.ColorScheme.apply(String, List) instead
boolean	enabled() Returns true if ANSI escape codes should be emitted, false otherwise.
String	string(String stringWithMarkup) Returns a String where any markup like @|bg(red),white,underline some text|@ is converted to ANSI escape codes if this Ansi is ON, or suppressed if this Ansi is OFF.
CommandLine.Help.Ansi.Text	text(String stringWithMarkup) Returns a new Text object for this Ansi mode, encapsulating the specified string which may contain markup like @|bg(red),white,underline some text|@.
static CommandLine.Help.Ansi	valueOf(boolean enabled) Returns Ansi.ON if the specified enabled flag is true, Ansi.OFF otherwise.
static CommandLine.Help.Ansi	valueOf(String name) Returns the enum constant of this type with the specified name.
static CommandLine.Help.Ansi[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

AUTO

public static final CommandLine.Help.Ansi AUTO

Only emit ANSI escape codes if the platform supports it and system property "picocli.ansi" is not set to any value other than "true" (case insensitive).

ON

public static final CommandLine.Help.Ansi ON

Forced ON: always emit ANSI escape code regardless of the platform.

OFF

public static final CommandLine.Help.Ansi OFF

Forced OFF: never emit ANSI escape code regardless of the platform.

Method Detail

values

public static CommandLine.Help.Ansi[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (CommandLine.Help.Ansi c : CommandLine.Help.Ansi.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static CommandLine.Help.Ansi valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

enabled

public boolean enabled()

Returns true if ANSI escape codes should be emitted, false otherwise.

Returns:

ON: true, OFF: false, AUTO: if system property "picocli.ansi" has value "tty" (case-insensitive), then return true if either System.console() != null or picocli guesses the application is running in a pseudo-terminal pty on a Linux emulator in Windows. If system property "picocli.ansi" has value "true" (case-sensitive) then return true. Otherwise use picocli's Heuristics for Enabling ANSI to determine whether the platform supports ANSI escape codes.

text

public CommandLine.Help.Ansi.Text text(String stringWithMarkup)

Returns a new Text object for this Ansi mode, encapsulating the specified string which may contain markup like @|bg(red),white,underline some text|@.

Calling toString() on the returned Text will either include ANSI escape codes (if this Ansi mode is ON), or suppress ANSI escape codes (if this Ansi mode is OFF).

Equivalent to this.new Text(stringWithMarkup).

Since:

3.4

See Also:

CommandLine.Help.ColorScheme.text(String)

string

public String string(String stringWithMarkup)

Returns a String where any markup like @|bg(red),white,underline some text|@ is converted to ANSI escape codes if this Ansi is ON, or suppressed if this Ansi is OFF.

Equivalent to this.new Text(stringWithMarkup).toString().

Since:

3.4

See Also:

CommandLine.Help.ColorScheme.string(String)

valueOf

public static CommandLine.Help.Ansi valueOf(boolean enabled)

Returns Ansi.ON if the specified enabled flag is true, Ansi.OFF otherwise.

Since:

3.4

apply

@Deprecated
public CommandLine.Help.Ansi.Text apply(String plainText,
                                                     List<CommandLine.Help.Ansi.IStyle> styles)

Deprecated. use CommandLine.Help.ColorScheme.apply(String, List) instead