public class AutoIndentWriter extends Object implements STWriter
Writer.
\n is the proper way to say newline for options and templates.
Templates can mix \r\n and \n them, but use \n in
options like wrap="\n". This writer will render newline characters
according to newline. The default value is taken from the
line.separator system property, and can be overridden by passing in a
String to the appropriate constructor.| Modifier and Type | Field and Description |
|---|---|
int[] |
anchors
Stack of integer anchors (char positions in line); avoid
Integer
creation overhead. |
int |
anchors_sp |
boolean |
atStartOfLine |
int |
charIndex
The absolute char index into the output of the next char to be written.
|
int |
charPosition
Track char position in the line (later we can think about tabs).
|
List<String> |
indents
Stack of indents.
|
int |
lineWidth |
String |
newline
\n or \r\n? |
Writer |
out |
| Constructor and Description |
|---|
AutoIndentWriter(Writer out) |
AutoIndentWriter(Writer out,
String newline) |
| Modifier and Type | Method and Description |
|---|---|
int |
indent() |
int |
index()
Return the absolute char index into the output of the char
we're about to write.
|
void |
popAnchorPoint() |
String |
popIndentation() |
void |
pushAnchorPoint() |
void |
pushIndentation(String indent) |
void |
setLineWidth(int lineWidth) |
int |
write(String str)
Write out a string literal or attribute expression or expression element.
|
int |
write(String str,
String wrap)
Write out a string literal or attribute expression or expression element.
|
int |
writeSeparator(String str)
Write a separator.
|
int |
writeWrap(String wrap)
Because we evaluate ST instance by invoking
Interpreter.exec(STWriter, InstanceScope) again, we can't pass options in. |
public int[] anchors
Integer
creation overhead.public int anchors_sp
public String newline
\n or \r\n?public Writer out
public boolean atStartOfLine
public int charPosition
charPosition <= lineWidth.
This is the position we are about to write, not the position
last written to.public int charIndex
public int lineWidth
public AutoIndentWriter(Writer out)
public void setLineWidth(int lineWidth)
setLineWidth in interface STWriterpublic void pushIndentation(String indent)
pushIndentation in interface STWriterpublic String popIndentation()
popIndentation in interface STWriterpublic void pushAnchorPoint()
pushAnchorPoint in interface STWriterpublic void popAnchorPoint()
popAnchorPoint in interface STWriterpublic int index()
STWriterpublic int write(String str) throws IOException
write in interface STWriterIOExceptionpublic int writeSeparator(String str) throws IOException
STWriterSTWriter.write(String) except that a "\n"
cannot be inserted before emitting a separator.writeSeparator in interface STWriterIOExceptionpublic int write(String str, String wrap) throws IOException
wrap before emitting str.
If at or beyond desired line width then emit a newline and any
indentation before spitting out str.write in interface STWriterIOExceptionpublic int writeWrap(String wrap) throws IOException
STWriterInterpreter.exec(STWriter, InstanceScope) again, we can't pass options in.
So the Bytecode.INSTR_WRITE instruction of an applied template
(such as when we wrap in between template applications like
<data:{v|[<v>]}; wrap>) we need to write the wrap string
before calling Interpreter.exec(org.stringtemplate.v4.STWriter, org.stringtemplate.v4.InstanceScope). We expose just like for the
separator. See Interpreter.writeObject(org.stringtemplate.v4.STWriter, org.stringtemplate.v4.InstanceScope, java.lang.Object, java.lang.String[]) where it checks for ST
instance. If POJO, Interpreter.writePOJO(org.stringtemplate.v4.STWriter, org.stringtemplate.v4.InstanceScope, java.lang.Object, java.lang.String[]) passes wrap to
STWriter.write(String str, String wrap). Can't pass to
Interpreter.exec(org.stringtemplate.v4.STWriter, org.stringtemplate.v4.InstanceScope).writeWrap in interface STWriterIOExceptionpublic int indent()
throws IOException
IOExceptionCopyright © 2013. All Rights Reserved.