Example usage for java.lang StringBuilder charAt

Introduction

In this page you can find the example usage for java.lang StringBuilder charAt.

Prototype

char charAt(int index);

Source Link

Document

Returns the char value at the specified index.

Usage

From source file:com.p000ison.dev.simpleclans2.api.chat.ChatBlock.java

/**
 * Returns the length of a string.//from  ww  w.j av a2  s.  c  om
 *
 * @param text The text to check.
 * @return The length of the string.
 */
public static int msgLength(StringBuilder text) {
    int length = 0;

    // Loop through all the characters, skipping any color characters and their following color codes

    int textLength = text.length() - 1;

    for (int x = 0; x < text.length(); x++) {
        char currentChar = text.charAt(x);

        //ignore colors, but only if there is enought space. A  at the end of the line will not be recognized
        if (currentChar == '\u00a7' && x < textLength) {
            char nextChar = text.charAt(x + 1);
            if (ChatColor.getByChar(nextChar) == null) {
                continue;
            }
        }

        int len = charLength(currentChar);
        if (len > 0) {
            length += len;
        } else {
            x++;
        }
    }
    return length;
}

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From source file:fr.landel.utils.io.FileUtils.java

/**
 * Convert all newline characters into Windows newlines.
 * //from  w  ww . j  a v  a  2 s . c o m
 * @param input
 *            The text to convert
 * @return The text converted
 */
public static StringBuilder convertToWindows(final StringBuilder input) {
    final StringBuilder output = new StringBuilder(input);

    int pos = 0;
    while ((pos = output.indexOf(LFCR, pos)) > -1) {
        output.replace(pos, pos + 2, CRLF);
        pos++;
    }
    pos = 0;
    while ((pos = output.indexOf(L, pos)) > -1) {
        if (pos == 0 || output.charAt(pos - 1) != CR) {
            output.replace(pos, pos + 1, CRLF);
        }
        pos++;
    }
    pos = 0;
    final int len = output.length();
    while ((pos = output.indexOf(C, pos)) > -1) {
        if (pos == len - 1 || output.charAt(pos + 1) != LF) {
            output.replace(pos, pos + 1, CRLF);
        }
        pos++;
    }

    return output;
}

---

From source file:fr.landel.utils.io.FileUtils.java

/**
 * Convert all newline characters into Mac OS newlines.
 * /*from  w  w  w. ja va2s.c  om*/
 * @param input
 *            The text to convert
 * @return The text converted
 */
public static StringBuilder convertToMacOS(final StringBuilder input) {
    final StringBuilder output = new StringBuilder(input);

    int pos = 0;
    while ((pos = output.indexOf(CRLF, pos)) > -1) {
        output.replace(pos, pos + 2, LFCR);
        pos++;
    }
    pos = 0;
    while ((pos = output.indexOf(C, pos)) > -1) {
        if (pos == 0 || output.charAt(pos - 1) != LF) {
            output.replace(pos, pos + 1, LFCR);
        }
        pos++;
    }
    pos = 0;
    final int len = output.length();
    while ((pos = output.indexOf(L, pos)) > -1) {
        if (pos == len - 1 || output.charAt(pos + 1) != CR) {
            output.replace(pos, pos + 1, LFCR);
        }
        pos++;
    }

    return output;
}

---

From source file:org.cesecore.util.StringTools.java

/**
 * Characters from 'str' will be stripped like this:
 * any character that is in the 'stripThis' set will be replaced with '/'.
 * any character that is escaped (preceded with '\') and not in the {@value #allowedEscapeChars} set will be replaced with '/'.
 * when a character is replaced with '/' and also escaped then the preceding escape character '\' will be removed.
 * //from w  w w  .  j  a  va2s  .  c  o  m
 * @param str the original string
 * @param stripThis set of characters that should be stripped.
 * @return the stripped string
 */
private static String strip(final String str, final CharSet stripThis) {
    if (str == null) {
        return null;
    }
    final StringBuilder buf = new StringBuilder(str);
    int index = 0;
    int end = buf.length();
    while (index < end) {
        if (buf.charAt(index) == '\\') {
            // Found an escape character.
            if (index + 1 == end) {
                // If this is the last character we should remove it.
                buf.setCharAt(index, '/');
            } else if (!isAllowedEscape(buf.charAt(index + 1))) {
                // We did not allow this character to be escaped. Replace both the \ and the character with a single '/'.
                buf.setCharAt(index, '/');
                buf.deleteCharAt(index + 1);
                end--;
            } else {
                index++;
            }
        } else if (stripThis.contains(buf.charAt(index))) {
            // Illegal character. Replace it with a '/'.
            buf.setCharAt(index, '/');
        }
        index++;
    }
    final String result = buf.toString();
    if (log.isDebugEnabled() && !result.equals(str)) {
        log.debug("Some chars stripped. Was '" + str + "' is now '" + result + "'.");
    }
    return result;
}

---

From source file:com.caocao.util.StringUtils.java

/**
 * Trim all occurences of the supplied leading character from the given String.
 * @param str the String to check// w w w  .ja v a  2 s  .  c om
 * @param leadingCharacter the leading character to be trimmed
 * @return the trimmed String
 */
public static String trimLeadingCharacter(String str, char leadingCharacter) {
    if (isEmpty(str)) {
        return str;
    }
    StringBuilder sb = new StringBuilder(str);
    while (sb.length() > 0 && sb.charAt(0) == leadingCharacter) {
        sb.deleteCharAt(0);
    }
    return sb.toString();
}

---

From source file:org.diorite.impl.metrics.Metrics.java

private static void appendJSONPair(final StringBuilder json, final String key, final String value) {
    boolean isValueNumeric = false;

    try {// ww  w  .  java 2s  .com
        if (value.equals("0") || !value.endsWith("0")) {
            Double.parseDouble(value);
            isValueNumeric = true;
        }
    } catch (final NumberFormatException e) {
        isValueNumeric = false;
    }

    if (json.charAt(json.length() - 1) != '{') {
        json.append(',');
    }

    json.append(escapeJSON(key));
    json.append(':');

    if (isValueNumeric) {
        json.append(value);
    } else {
        json.append(escapeJSON(value));
    }
}

---

From source file:org.eclipse.ecr.core.storage.sql.extensions.EmbeddedFunctions.java

public static final String parseWord(String string) {
    int len = string.length();
    if (len < 3) {
        return null;
    }// w w  w. jav a 2 s  .co m
    StringBuilder buf = new StringBuilder(len);
    for (int i = 0; i < len; i++) {
        char c = Character.toLowerCase(string.charAt(i));
        if (c == '\u00e6') {
            buf.append("ae");
        } else if (c >= '\u00e0' && c <= '\u00ff') {
            buf.append(UNACCENTED.charAt((c) - 0xe0));
        } else if (c == '\u0153') {
            buf.append("oe");
        } else {
            buf.append(c);
        }
    }
    // simple heuristic to remove plurals
    int l = buf.length();
    if (l > 3 && buf.charAt(l - 1) == 's') {
        buf.setLength(l - 1);
    }
    String word = buf.toString();
    if (stopWords.contains(word)) {
        return null;
    }
    return word;
}

---

From source file:practica1.Babage.java

private static String factores(int numero) {
    StringBuilder factores = new StringBuilder();

    for (int w = 1; w <= numero; w++) {
        if (numero % w == 0) {
            factores.append(String.valueOf(w)).append(", ");
        }//  www .  ja  v  a  2  s  .  c  om
    }

    if (factores.charAt(factores.length() - 1) == ' ') {
        factores.setLength(factores.length() - 2);
    }

    return factores.toString();
}

---

From source file:org.fao.fenix.wds.core.utils.olap.OLAPWrapper.java

public static StringBuilder cleanJSON(StringBuilder sb) {

    String s = "{},";
    while ((sb.indexOf(s)) > -1)
        sb.replace(sb.indexOf(s), s.length() + sb.indexOf(s), "");

    s = "\"v\":[{}]";
    while ((sb.indexOf(s)) > -1)
        sb.replace(sb.indexOf(s), s.length() + sb.indexOf(s), "");

    s = ",}";//from w  ww .ja v  a 2 s  .c o m
    while ((sb.indexOf(s)) > -1)
        sb.replace(sb.indexOf(s), s.length() + sb.indexOf(s), "}");

    int idx_1 = -1;
    int idx_2 = -1;
    for (int i = 0; i < sb.length(); i++) {
        if (sb.charAt(i) == '{')
            idx_1 = i;
        if (sb.charAt(i) == '}')
            idx_2 = i;
        if (idx_1 > -1 && idx_2 > -1) {
            int count = 0;
            for (int j = idx_1; j < idx_2; j++)
                if (sb.charAt(j) == '"')
                    count++;
            if (count == 4) {
                for (int z = idx_2; z >= idx_1; z--) {
                    sb.setCharAt(z, ' ');
                }
            }
            i = 1 + idx_2;
            idx_1 = -1;
            idx_2 = -1;
        }
    }

    s = " , ";
    while ((sb.indexOf(s)) > -1)
        sb.replace(sb.indexOf(s), s.length() + sb.indexOf(s), "");

    s = " ,{";
    while ((sb.indexOf(s)) > -1)
        sb.replace(sb.indexOf(s), s.length() + sb.indexOf(s), "{");

    s = "}]}, ";
    while ((sb.indexOf(s)) > -1)
        sb.replace(sb.indexOf(s), s.length() + sb.indexOf(s), "}]}");

    idx_1 = -1;
    idx_2 = -1;
    for (int i = 0; i < sb.length(); i++) {
        if (sb.charAt(i) == '}')
            idx_1 = i;
        if (sb.charAt(i) == '{' && i > idx_1)
            idx_2 = i;
        if (idx_1 > -1 && idx_2 > -1 && idx_2 > idx_1) {
            String tmp = sb.substring(idx_1, 1 + idx_2);
            int blanks = 0;
            int commas = 0;
            for (int z = 0; z < tmp.length(); z++) {
                switch (tmp.charAt(z)) {
                case ' ':
                    blanks++;
                    break;
                case ',':
                    commas++;
                    break;
                }
            }
            if (blanks > 0 && commas == 0) {
                String s1 = sb.substring(0, idx_1);
                String s2 = sb.substring(1 + idx_2);
                sb = new StringBuilder(s1 + "},{" + s2);
            }
            i = 1 + idx_2;
            idx_1 = -1;
            idx_2 = -1;
        }
    }

    s = "{}";
    while ((sb.indexOf(s)) > -1)
        sb.replace(sb.indexOf(s), s.length() + sb.indexOf(s), "");

    s = "},]";
    while ((sb.indexOf(s)) > -1)
        sb.replace(sb.indexOf(s), s.length() + sb.indexOf(s), "}]");

    return sb;
}

---

From source file:ala.soils2sat.DrawingUtils.java

private static List<String> wrapString(String s, FontMetrics fm, int width) {
    List<String> lines = new ArrayList<String>();
    StringBuilder line = new StringBuilder();
    for (int i = 0; i < s.length(); ++i) {
        char ch = s.charAt(i);
        String test = line.toString() + ch;
        if (fm.stringWidth(test) > width) {
            if (test.length() > 1) {
                // Backtrack to look for a space...
                boolean breakFound = false;
                if (ch != ' ') {

                    for (int j = line.length() - 1; j > 0; --j) {
                        if (line.charAt(j) == ' ') {
                            lines.add(line.substring(0, j));
                            line = new StringBuilder(line.substring(j + 1));
                            breakFound = true;
                            break;
                        }/*from  w  w w .j ava 2s . co m*/
                    }
                }
                if (!breakFound) {
                    lines.add(line.toString());
                    line = new StringBuilder();
                }
                line.append(ch);
            } else {
                lines.add(test);
                line = new StringBuilder();
            }
        } else {
            line.append(ch);
        }
    }
    if (line.length() > 0) {
        lines.add(line.toString());
    }
    return lines;
}

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