public class IndentPrinter extends Object
By default, a PrintWriter to System.out is used as the Writer, but it is possible to change the Writer by passing a new one as a constructor argument.
Indention by default is 2 characters but can be changed by passing a different value as a constructor argument.
The following is an example usage. Note that within a "with" block you need to specify a parameter name so that this.println is not called instead of IndentPrinter.println:
new IndentPrinter(new PrintWriter(out)).with { p -> p.printIndent() p.println('parent1') p.incrementIndent() p.printIndent() p.println('child 1') p.printIndent() p.println('child 2') p.decrementIndent() p.printIndent() p.println('parent2') p.flush() }The above example prints this to standard output:
parent1 child 1 child 2 parent2
Constructor and Description |
---|
IndentPrinter()
Creates an IndentPrinter backed by a PrintWriter pointing to System.out, with an indent of two spaces.
|
IndentPrinter(Writer out)
Creates an IndentPrinter backed by the supplied Writer, with an indent of two spaces.
|
IndentPrinter(Writer out,
String indent)
Creates an IndentPrinter backed by the supplied Writer,
with a user-supplied String to be used for indenting.
|
IndentPrinter(Writer out,
String indent,
boolean addNewlines)
Creates an IndentPrinter backed by the supplied Writer,
with a user-supplied String to be used for indenting
and the ability to override newline handling.
|
IndentPrinter(Writer out,
String indent,
boolean addNewlines,
boolean autoIndent)
Create an IndentPrinter to the given PrintWriter
|
Modifier and Type | Method and Description |
---|---|
void |
decrementIndent() |
void |
flush() |
boolean |
getAutoIndent() |
int |
getIndentLevel() |
void |
incrementIndent() |
void |
print(char c)
Prints a character.
|
void |
print(String text)
Prints a string.
|
void |
printIndent()
Prints the current indent level.
|
void |
println()
Prints an end-of-line character (if enabled via addNewLines property).
|
void |
println(String text)
Prints a string followed by an end of line character.
|
void |
setAutoIndent(boolean autoIndent) |
void |
setIndentLevel(int indentLevel) |
public IndentPrinter()
IndentPrinter(Writer, String)
public IndentPrinter(Writer out)
out
- Writer to output toIndentPrinter(Writer, String)
public IndentPrinter(Writer out, String indent)
out
- Writer to output toindent
- character(s) used to indent each linepublic IndentPrinter(Writer out, String indent, boolean addNewlines)
out
- Writer to output toindent
- character(s) used to indent each lineaddNewlines
- set to false to gobble all new lines (default true)public IndentPrinter(Writer out, String indent, boolean addNewlines, boolean autoIndent)
out
- Writer to output toindent
- character(s) used to indent each lineaddNewlines
- set to false to gobble all new lines (default true)autoIndent
- set to true to make println() prepend the indent automatically (default false)public void println(String text)
text
- String to be writtenpublic void print(String text)
text
- String to be writtenpublic void print(char c)
c
- char to be writtenpublic void printIndent()
public void println()
public void incrementIndent()
public void decrementIndent()
public int getIndentLevel()
public void setIndentLevel(int indentLevel)
public boolean getAutoIndent()
public void setAutoIndent(boolean autoIndent)
public void flush()