Examples with CharArrayWriter java.io.CharArrayWriter used on opensource projects

Example 21 with CharArrayWriter

use of java.io.CharArrayWriter in project sling by apache.

the class JspDocumentParser method processChars.

private void processChars() throws SAXException {
    if (charBuffer == null || directivesOnly) {
        return;
    }
    /*
         * JSP.6.1.1: All textual nodes that have only white space are to be
         * dropped from the document, except for nodes in a jsp:text element,
         * and any leading and trailing white-space-only textual nodes in a
         * jsp:attribute whose 'trim' attribute is set to FALSE, which are to
         * be kept verbatim.
         * JSP.6.2.3 defines white space characters.
         */
    boolean isAllSpace = true;
    if (!(current instanceof Node.JspText) && !(current instanceof Node.NamedAttribute)) {
        for (int i = 0; i < charBuffer.length(); i++) {
            if (!(charBuffer.charAt(i) == ' ' || charBuffer.charAt(i) == '\n' || charBuffer.charAt(i) == '\r' || charBuffer.charAt(i) == '\t')) {
                isAllSpace = false;
                break;
            }
        }
    }
    if (!isAllSpace && tagDependentPending) {
        tagDependentPending = false;
        tagDependentNesting++;
    }
    if (tagDependentNesting > 0) {
        if (charBuffer.length() > 0) {
            new Node.TemplateText(charBuffer.toString(), startMark, current);
        }
        startMark = new Mark(ctxt, path, locator.getLineNumber(), locator.getColumnNumber());
        charBuffer = null;
        return;
    }
    if ((current instanceof Node.JspText) || (current instanceof Node.NamedAttribute) || !isAllSpace) {
        int line = startMark.getLineNumber();
        int column = startMark.getColumnNumber();
        CharArrayWriter ttext = new CharArrayWriter();
        int lastCh = 0, elType = 0;
        for (int i = 0; i < charBuffer.length(); i++) {
            int ch = charBuffer.charAt(i);
            if (ch == '\n') {
                column = 1;
                line++;
            } else {
                column++;
            }
            if ((lastCh == '$' || lastCh == '#') && ch == '{') {
                elType = lastCh;
                if (ttext.size() > 0) {
                    new Node.TemplateText(ttext.toString(), startMark, current);
                    ttext = new CharArrayWriter();
                    //We subtract two from the column number to
                    //account for the '[$,#]{' that we've already parsed
                    startMark = new Mark(ctxt, path, line, column - 2);
                }
                // following "${" || "#{" to first unquoted "}"
                i++;
                boolean singleQ = false;
                boolean doubleQ = false;
                lastCh = 0;
                for (; ; i++) {
                    if (i >= charBuffer.length()) {
                        throw new SAXParseException(Localizer.getMessage("jsp.error.unterminated", (char) elType + "{"), locator);
                    }
                    ch = charBuffer.charAt(i);
                    if (ch == '\n') {
                        column = 1;
                        line++;
                    } else {
                        column++;
                    }
                    if (lastCh == '\\' && (singleQ || doubleQ)) {
                        ttext.write(ch);
                        lastCh = 0;
                        continue;
                    }
                    if (ch == '}') {
                        new Node.ELExpression((char) elType, ttext.toString(), startMark, current);
                        ttext = new CharArrayWriter();
                        startMark = new Mark(ctxt, path, line, column);
                        break;
                    }
                    if (ch == '"')
                        doubleQ = !doubleQ;
                    else if (ch == '\'')
                        singleQ = !singleQ;
                    ttext.write(ch);
                    lastCh = ch;
                }
            } else if (lastCh == '\\' && (ch == '$' || ch == '#')) {
                ttext.write(ch);
                // Not start of EL anymore
                ch = 0;
            } else {
                if (lastCh == '$' || lastCh == '#' || lastCh == '\\') {
                    ttext.write(lastCh);
                }
                if (ch != '$' && ch != '#' && ch != '\\') {
                    ttext.write(ch);
                }
            }
            lastCh = ch;
        }
        if (lastCh == '$' || lastCh == '#' || lastCh == '\\') {
            ttext.write(lastCh);
        }
        if (ttext.size() > 0) {
            new Node.TemplateText(ttext.toString(), startMark, current);
        }
    }
    startMark = new Mark(ctxt, path, locator.getLineNumber(), locator.getColumnNumber());
    charBuffer = null;
}

Example 22 with CharArrayWriter

use of java.io.CharArrayWriter in project sling by apache.

the class JspUtil method removeQuotes.

public static char[] removeQuotes(char[] chars) {
    CharArrayWriter caw = new CharArrayWriter();
    for (int i = 0; i < chars.length; i++) {
        if (chars[i] == '%' && chars[i + 1] == '\\' && chars[i + 2] == '>') {
            caw.write('%');
            caw.write('>');
            i = i + 2;
        } else {
            caw.write(chars[i]);
        }
    }
    return caw.toCharArray();
}

Example 23 with CharArrayWriter

use of java.io.CharArrayWriter in project sling by apache.

the class Parser method parseScriptText.

private String parseScriptText(String tx) {
    CharArrayWriter cw = new CharArrayWriter();
    int size = tx.length();
    int i = 0;
    while (i < size) {
        char ch = tx.charAt(i);
        if (i + 2 < size && ch == '%' && tx.charAt(i + 1) == '\\' && tx.charAt(i + 2) == '>') {
            cw.write('%');
            cw.write('>');
            i += 3;
        } else {
            cw.write(ch);
            ++i;
        }
    }
    cw.close();
    return cw.toString();
}

Example 24 with CharArrayWriter

use of java.io.CharArrayWriter in project sling by apache.

the class Parser method parseTemplateText.

/*
     * Parse for a template text string until '<' or "${" or "#{" is encountered,
     * recognizing escape sequences "\%", "\$", and "\#".
     */
private void parseTemplateText(Node parent) throws JasperException {
    if (!reader.hasMoreInput())
        return;
    CharArrayWriter ttext = new CharArrayWriter();
    // Output the first character
    int ch = reader.nextChar();
    if (ch == '\\') {
        reader.pushChar();
    } else {
        ttext.write(ch);
    }
    while (reader.hasMoreInput()) {
        ch = reader.nextChar();
        if (ch == '<') {
            reader.pushChar();
            break;
        } else if (ch == '$' || ch == '#') {
            if (!reader.hasMoreInput()) {
                ttext.write(ch);
                break;
            }
            if (reader.nextChar() == '{') {
                reader.pushChar();
                reader.pushChar();
                break;
            }
            ttext.write(ch);
            reader.pushChar();
            continue;
        } else if (ch == '\\') {
            if (!reader.hasMoreInput()) {
                ttext.write('\\');
                break;
            }
            char next = (char) reader.peekChar();
            // convolude multiple steps at once and create confusing parsers...)
            if (next == '%' || next == '$' || next == '#') {
                ch = reader.nextChar();
            }
        }
        ttext.write(ch);
    }
    new Node.TemplateText(ttext.toString(), start, parent);
}

Example 25 with CharArrayWriter

use of java.io.CharArrayWriter in project sling by apache.

the class Parser method parseXMLTemplateText.

/*
     * XMLTemplateText ::= ( S? '/>' ) | ( S? '>' ( ( Char* - ( Char* ( '<' |
     * '${' ) ) ) ( '${' ELExpressionBody )? CDSect? )* ETag ) |
     * <TRANSLATION_ERROR>
     */
private void parseXMLTemplateText(Node parent) throws JasperException {
    reader.skipSpaces();
    if (!reader.matches("/>")) {
        if (!reader.matches(">")) {
            err.jspError(start, "jsp.error.unterminated", "&lt;jsp:text&gt;");
        }
        CharArrayWriter ttext = new CharArrayWriter();
        while (reader.hasMoreInput()) {
            int ch = reader.nextChar();
            if (ch == '<') {
                // Check for <![CDATA[
                if (!reader.matches("![CDATA[")) {
                    break;
                }
                start = reader.mark();
                Mark stop = reader.skipUntil("]]>");
                if (stop == null) {
                    err.jspError(start, "jsp.error.unterminated", "CDATA");
                }
                String text = reader.getText(start, stop);
                ttext.write(text, 0, text.length());
            } else if (ch == '\\') {
                if (!reader.hasMoreInput()) {
                    ttext.write('\\');
                    break;
                }
                ch = reader.nextChar();
                if (ch != '$' && ch != '#') {
                    ttext.write('\\');
                }
                ttext.write(ch);
            } else if (ch == '$' || ch == '#') {
                if (!reader.hasMoreInput()) {
                    ttext.write(ch);
                    break;
                }
                if (reader.nextChar() != '{') {
                    ttext.write(ch);
                    reader.pushChar();
                    continue;
                }
                // Create a template text node
                new Node.TemplateText(ttext.toString(), start, parent);
                // Mark and parse the EL expression and create its node:
                start = reader.mark();
                parseELExpression(parent, (char) ch);
                start = reader.mark();
                ttext = new CharArrayWriter();
            } else {
                ttext.write(ch);
            }
        }
        new Node.TemplateText(ttext.toString(), start, parent);
        if (!reader.hasMoreInput()) {
            err.jspError(start, "jsp.error.unterminated", "&lt;jsp:text&gt;");
        } else if (!reader.matchesETagWithoutLessThan("jsp:text")) {
            err.jspError(start, "jsp.error.jsptext.badcontent");
        }
    }
}