Java Code Examples for com.ibm.icu.lang.UCharacter#isUnicodeIdentifierPart()

The following examples show how to use com.ibm.icu.lang.UCharacter#isUnicodeIdentifierPart() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: RBBISymbolTable.java    From fitnotifications with Apache License 2.0 6 votes vote down vote up 
public String parseReference(String text, ParsePosition pos, int limit) {
    int start = pos.getIndex();
    int i = start;
    String result = "";
    while (i < limit) {
        int c = UTF16.charAt(text, i);
        if ((i == start && !UCharacter.isUnicodeIdentifierStart(c))
                || !UCharacter.isUnicodeIdentifierPart(c)) {
            break;
        }
        i += UTF16.getCharCount(c);
    }
    if (i == start) { // No valid name chars
        return result; // Indicate failure with empty string
    }
    pos.setIndex(i);
    result = text.substring(start, i);
    return result;
}
Example 2
Source File: TransliteratorParser.java    From fitnotifications with Apache License 2.0 6 votes vote down vote up 
/**
 * Implement SymbolTable API.  Parse out a symbol reference
 * name.
 */
@Override
public String parseReference(String text, ParsePosition pos, int limit) {
    int start = pos.getIndex();
    int i = start;
    while (i < limit) {
        char c = text.charAt(i);
        if ((i==start && !UCharacter.isUnicodeIdentifierStart(c)) ||
            !UCharacter.isUnicodeIdentifierPart(c)) {
            break;
        }
        ++i;
    }
    if (i == start) { // No valid name chars
        return null;
    }
    pos.setIndex(i);
    return text.substring(start, i);
}
Example 3
Source File: Utility.java    From fitnotifications with Apache License 2.0 6 votes vote down vote up 
/**
 * Parse a Unicode identifier from the given string at the given
 * position.  Return the identifier, or null if there is no
 * identifier.
 * @param str the string to parse
 * @param pos INPUT-OUPUT parameter.  On INPUT, pos[0] is the
 * first character to examine.  It must be less than str.length(),
 * and it must not point to a whitespace character.  That is, must
 * have pos[0] < str.length().  On
 * OUTPUT, the position after the last parsed character.
 * @return the Unicode identifier, or null if there is no valid
 * identifier at pos[0].
 */
public static String parseUnicodeIdentifier(String str, int[] pos) {
    // assert(pos[0] < str.length());
    StringBuilder buf = new StringBuilder();
    int p = pos[0];
    while (p < str.length()) {
        int ch = Character.codePointAt(str, p);
        if (buf.length() == 0) {
            if (UCharacter.isUnicodeIdentifierStart(ch)) {
                buf.appendCodePoint(ch);
            } else {
                return null;
            }
        } else {
            if (UCharacter.isUnicodeIdentifierPart(ch)) {
                buf.appendCodePoint(ch);
            } else {
                break;
            }
        }
        p += UTF16.getCharCount(ch);
    }
    pos[0] = p;
    return buf.toString();
}
Example 4
Source File: Utility.java    From trekarta with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Parse a Unicode identifier from the given string at the given
 * position.  Return the identifier, or null if there is no
 * identifier.
 * @param str the string to parse
 * @param pos INPUT-OUPUT parameter.  On INPUT, pos[0] is the
 * first character to examine.  It must be less than str.length(),
 * and it must not point to a whitespace character.  That is, must
 * have pos[0] < str.length().  On
 * OUTPUT, the position after the last parsed character.
 * @return the Unicode identifier, or null if there is no valid
 * identifier at pos[0].
 */
public static String parseUnicodeIdentifier(String str, int[] pos) {
    // assert(pos[0] < str.length());
    StringBuilder buf = new StringBuilder();
    int p = pos[0];
    while (p < str.length()) {
        int ch = Character.codePointAt(str, p);
        if (buf.length() == 0) {
            if (UCharacter.isUnicodeIdentifierStart(ch)) {
                buf.appendCodePoint(ch);
            } else {
                return null;
            }
        } else {
            if (UCharacter.isUnicodeIdentifierPart(ch)) {
                buf.appendCodePoint(ch);
            } else {
                break;
            }
        }
        p += UTF16.getCharCount(ch);
    }
    pos[0] = p;
    return buf.toString();
}
Example 5
Source File: Character.java    From juniversal with MIT License 2 votes vote down vote up 
/**
 * Indicates whether the specified code point is valid as part of a Unicode
 * identifier other than the first character.
 * 
 * @param codePoint
 *            the code point to check.
 * @return {@code true} if {@code codePoint} is valid as part of a Unicode
 *         identifier; {@code false} otherwise.
 */
public static boolean isUnicodeIdentifierPart(int codePoint) {
    return UCharacter.isUnicodeIdentifierPart(codePoint);
}