Package com.github.javaparser.utils
Class StringEscapeUtils.OctalUnescaper
- java.lang.Object
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- com.github.javaparser.utils.StringEscapeUtils.CharSequenceTranslator
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- com.github.javaparser.utils.StringEscapeUtils.OctalUnescaper
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- Enclosing class:
- StringEscapeUtils
private static class StringEscapeUtils.OctalUnescaper extends StringEscapeUtils.CharSequenceTranslator
Adapted from apache commons-lang3 project.Translate escaped octal Strings back to their octal values.
For example, "\45" should go back to being the specific value (a %).
Note that this currently only supports the viable range of octal for Java; namely 1 to 377. This is because parsing Java is the main use case.
- Since:
- 3.0
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Constructor Summary
Constructors Modifier Constructor Description private
OctalUnescaper()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description private boolean
isOctalDigit(char ch)
Checks if the given char is an octal digit.private boolean
isZeroToThree(char ch)
Checks if the given char is the character representation of one of the digit from 0 to 3.protected int
translate(java.lang.CharSequence input, int index, java.io.Writer out)
Translate a set of codepoints, represented by an int index into a CharSequence, into another set of codepoints.
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Method Detail
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translate
protected int translate(java.lang.CharSequence input, int index, java.io.Writer out) throws java.io.IOException
Translate a set of codepoints, represented by an int index into a CharSequence, into another set of codepoints. The number of codepoints consumed must be returned, and the only IOExceptions thrown must be from interacting with the Writer so that the top level API may reliably ignore StringWriter IOExceptions.- Specified by:
translate
in classStringEscapeUtils.CharSequenceTranslator
- Parameters:
input
- CharSequence that is being translatedindex
- int representing the current point of translationout
- Writer to translate the text to- Returns:
- int count of codepoints consumed
- Throws:
java.io.IOException
- if and only if the Writer produces an IOException
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isOctalDigit
private boolean isOctalDigit(char ch)
Checks if the given char is an octal digit. Octal digits are the character representations of the digits 0 to 7.- Parameters:
ch
- the char to check- Returns:
- true if the given char is the character representation of one of the digits from 0 to 7
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isZeroToThree
private boolean isZeroToThree(char ch)
Checks if the given char is the character representation of one of the digit from 0 to 3.- Parameters:
ch
- the char to check- Returns:
- true if the given char is the character representation of one of the digits from 0 to 3
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