PrettyPrinter class final

A visually styled log printer that wraps log output in a clean box format.

This printer improves readability during development by using Unicode borders, emoji icons (optional), and structured multi-line formatting. It is useful for console applications, CLI tools, or Flutter/Dart debug output.

Example Output:

┌──────────────────────────────────────────────────────────────────────────────
│ 💬 MESSAGE: User signed in
│ ⏰ TIME: 2025-06-23 10:20:01.235
│ 🏷️ TAG: AuthService
├──────────────────────────────────────────────────────────────────────────────
│ ❌ ERROR: Missing token
│ 📋 STACK:
│ #0 AuthService.login (auth_service.dart:42)
│ #1 ...
└──────────────────────────────────────────────────────────────────────────────

Configuration is controlled via LogConfig, and log content is selected based on LogStep order.

Inheritance

Constructors

PrettyPrinter({int methodCount = 2, int errorMethodCount = 8, int lineLength = 120, LogConfig? config, int stackTraceBeginIndex = 0, List<String>? excludePaths})

Properties

config → LogConfig
Configuration for the printer
final
errorMethodCount → int
Number of stack trace lines to show for error logs
final
excludePaths → List<String>
List of paths to exclude from stack traces
final
hashCode → int
The hash code for this object.
no setterinherited
lineLength → int
Maximum line length for the log output
final
methodCount → int
Number of stack trace lines to show for normal logs
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
stackTraceBeginIndex → int
Index to start from in the stack trace
final

Methods

extractStack(StackTrace? stackTrace, List<String> excludePaths) → List<String>
Extracts the stack trace from a LogRecord.
inherited
getStepValue(LogStep step, LogRecord record) → String?
Extracts the string representation of the given LogStep from a LogRecord.
override
levelColor(LogLevel level) → AnsiColor
Returns the color for the given log level.
inherited
log(LogRecord record) → List<String>
Formats the given LogRecord into a list of strings.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
stringify(dynamic message) → String
Converts a message to its string representation.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Constants

bottomLeftCorner → const String
doubleDivider → const String
middleCorner → const String
singleDivider → const String
topLeftCorner → const String
verticalLine → const String