Top Constructors Methods

org.antlr.v4.runtime.misc

public Class Utils

Class Inheritance

extends Object

java.lang.Object
org.antlr.v4.runtime.misc.Utils

Imports

java.io.File, .FileInputStream, .FileOutputStream, .IOException, .InputStreamReader, .OutputStreamWriter, java.util.Arrays, .BitSet, .Collection, .HashMap, .Iterator, .Map

Constructor Summary

Access	Constructor and Description
public	Utils()

Method Summary

Modifier and Type	Method and Description
public static int	count(String s, char x)
public static String	escapeWhitespace(String s, boolean escapeSpaces)
public static String	expandTabs(String s, int tabSize)
public static <T> String	join(Iterator<T> iter, String separator)
public static <T> String	join(T[] array, String separator)
public static String	newlines(int n)
public static int	numNonnull(Object[] data)
public static char[]	readFile(String fileName)
public static char[]	readFile(String fileName, String encoding)
public static <T> void	removeAllElements(Collection<T> data, T value)
public static String	sequence(int n, String s)
public static String	spaces(int n)
public static char[]	toCharArray(IntegerList data)
public static Map<String, Integer>	toMap(String[] keys) Convert array of strings to string→index map.
public static IntervalSet	toSet(BitSet bits)
public static void	writeFile(String fileName, String content)
public static void	writeFile(String fileName, String content, String encoding)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Constructor Detail

Utils	back to summary
public Utils()

Method Detail

count	back to summary
public static int count(String s, char x) Since 4.6

escapeWhitespace	back to summary
public static String escapeWhitespace(String s, boolean escapeSpaces)

expandTabs	back to summary
public static String expandTabs(String s, int tabSize) Since 4.6

join	back to summary
public static <T> String join(Iterator<T> iter, String separator)

join	back to summary
public static <T> String join(T[] array, String separator)

newlines	back to summary
public static String newlines(int n) Since 4.6

numNonnull	back to summary
public static int numNonnull(Object[] data)

readFile	back to summary
public static char[] readFile(String fileName) throws IOException

readFile	back to summary
public static char[] readFile(String fileName, String encoding) throws IOException

removeAllElements	back to summary
public static <T> void removeAllElements(Collection<T> data, T value)

sequence	back to summary
public static String sequence(int n, String s) Since 4.6

spaces	back to summary
public static String spaces(int n) Since 4.6

toCharArray	back to summary
public static char[] toCharArray(IntegerList data)

toMap	back to summary
public static Map<String, Integer> toMap(String[] keys) Convert array of strings to string→index map. Useful for converting rulenames to name→ruleindex map.

toSet	back to summary
public static IntervalSet toSet(BitSet bits)

writeFile	back to summary
public static void writeFile(String fileName, String content) throws IOException

writeFile	back to summary
public static void writeFile(String fileName, String content, String encoding) throws IOException