Java Utililty Methods String Split by Line

List of utility methods to do String Split by Line

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Description

The list of methods to do String Split by Line are organized into topic(s).

Method

String[]splitBySeparatorAndParen(String line, char sep)
Split using a separator, but allow for the separator to occur in nested parentheses without splitting. 
boolean withinQuotes = false;
String newLine = new String(line);
Vector temp = new Vector();
int startIndex = 0;
int nesting = 0;
for (int i = 0; i < newLine.length(); i++) {
    char c = newLine.charAt(i);
    if (c == '"') {
...
String[]splitBySeparatorQuoteAndParen(String line, char sep)
Split using a separator, but allow for the separator to occur in nested parentheses without splitting. 
boolean withinQuotes = false;
String newLine = new String(line);
Vector temp = new Vector();
StringBuffer nextString = new StringBuffer();
int nesting = 0;
for (int i = 0; i < newLine.length(); i++) {
    char c = newLine.charAt(i);
    if (c == '\\') {
...
String[]splitCommandLine(String str, boolean extract)
split Command Line 
List list = new ArrayList();
int slen;
char c;
int i = 0;
int tokstart = 0;
if ((str == null) || ((str = str.trim()).length() == 0)) {
    return new String[0];
slen = str.length();
while (true) {
    if (i < slen) {
        c = str.charAt(i);
    } else {
        c = '\0';
    if (c == BACKSLASH) {
        i++;
        if (i < slen) {
            i++;
    } else if (c == QUOTE) {
        i = skipSingleQuoted(str, slen, ++i);
    } else if (c == DOUBLEQUOTE) {
        i = skipDoubleQuoted(str, slen, ++i);
    } else if ((c == '\0') || spctabnl(c)) {
        String token = str.substring(tokstart, i);
        if (extract) {
            token = extractQuoted(token);
        list.add(token);
        while ((i < slen) && spctabnl(str.charAt(i))) {
            i++;
        if (i < slen) {
            tokstart = i;
        } else {
            break;
    } else {
        i++;
return (String[]) list.toArray(new String[list.size()]);
String[]splitCommaSeparated(String line)
split Comma Separated 
List<String> result = new ArrayList<String>();
StringBuilder item = new StringBuilder();
boolean inQuote = false;
for (int i = 0; i < line.length(); ++i) {
    char ch = line.charAt(i); 
    switch (ch) {
    case '"':
        inQuote = !inQuote;
...
ListsplitHiddenNewLine(String s)
split Hidden New Line 
return Arrays.asList(s.split("" + hiddenNewLine()));
int[]splitInt(String line, String seperator, int def)
split Int 
String[] ss = split(line, seperator);
int[] r = new int[ss.length];
for (int i = 0; i < r.length; ++i) {
    r[i] = convertInt(ss[i], def);
return r;
ListsplitIntoLines(String str)
Returns an array of strings, one for each line in the string. 
ArrayList strings = new ArrayList();
int len = str.length();
if (len == 0) {
    strings.add("");
    return strings;
int lineStart = 0;
for (int i = 0; i < len; ++i) {
...
ArrayListsplitIntoNonEmptyLines(String s)
split Into Non Empty Lines 
return removeEmptyLines(s.split("\n"));
ArrayListsplitIntoNonEmptyLinesWithoutNetLogoComments(String s)
split Into Non Empty Lines Without Net Logo Comments 
return removeNetLogoCommentsAndEmptyLines(s.split("\n"));
ListsplitLine(final String line, final char delimiter, final char qualifier, final int initialSize)
Returns an ArrayList of items in a delimited string. 
final List list = new ArrayList(initialSize);
if (delimiter == 0) {
    list.add(line);
    return list;
} else if (line == null) {
    return list;
String trimmedLine;
...