Example usage for org.apache.commons.lang3.text StrMatcher isMatch

Introduction

In this page you can find the example usage for org.apache.commons.lang3.text StrMatcher isMatch.

Prototype

public abstract int isMatch(char[] buffer, int pos, int bufferStart, int bufferEnd);

Source Link

Document

Returns the number of matching characters, zero for no match.

Usage

From source file:it.d4nguard.rgrpg.util.StringCompiler.java

/**
 * Searches the string builder using the matcher to find the first
 * match searching from the given index.
 * <p>/*ww w .ja v a2  s . c  o  m*/
 * Matchers can be used to perform advanced searching behaviour. For example
 * you could write a matcher to find the character 'a' followed by a number.
 * 
 * @param matcher
 *            the matcher to use, null returns -1
 * @param startIndex
 *            the index to start at, invalid index rounded to edge
 * @return the first index matched, or -1 if not found
 */
public int indexOf(StrMatcher matcher, int startIndex) {
    startIndex = (startIndex < 0 ? 0 : startIndex);
    if (matcher == null || startIndex >= size) {
        return -1;
    }
    int len = size;
    char[] buf = buffer;
    for (int i = startIndex; i < len; i++) {
        if (matcher.isMatch(buf, i, startIndex, len) > 0) {
            return i;
        }
    }
    return -1;
}

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From source file:it.d4nguard.rgrpg.util.StringCompiler.java

/**
 * Searches the string builder using the matcher to find the last
 * match searching from the given index.
 * <p>// w w w .ja va  2 s  .c o m
 * Matchers can be used to perform advanced searching behaviour. For example
 * you could write a matcher to find the character 'a' followed by a number.
 * 
 * @param matcher
 *            the matcher to use, null returns -1
 * @param startIndex
 *            the index to start at, invalid index rounded to edge
 * @return the last index matched, or -1 if not found
 */
public int lastIndexOf(StrMatcher matcher, int startIndex) {
    startIndex = (startIndex >= size ? size - 1 : startIndex);
    if (matcher == null || startIndex < 0) {
        return -1;
    }
    char[] buf = buffer;
    int endIndex = startIndex + 1;
    for (int i = startIndex; i >= 0; i--) {
        if (matcher.isMatch(buf, i, 0, endIndex) > 0) {
            return i;
        }
    }
    return -1;
}

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From source file:it.d4nguard.rgrpg.util.StringCompiler.java

/**
 * Replaces within the builder using a matcher.
 * <p>/*w  w  w.j a  v  a2 s  . c o m*/
 * Matchers can be used to perform advanced behaviour. For example you could
 * write a matcher to delete all occurances where the character 'a' is
 * followed by a number.
 * 
 * @param matcher
 *            the matcher to use to find the deletion, null causes no action
 * @param replaceStr
 *            the string to replace the match with, null is a delete
 * @param from
 *            the start index, must be valid
 * @param to
 *            the end index (exclusive), must be valid
 * @param replaceCount
 *            the number of times to replace, -1 for replace all
 * @return this, to enable chaining
 * @throws IndexOutOfBoundsException
 *             if any index is invalid
 */
private StringCompiler replaceImpl(StrMatcher matcher, String replaceStr, int from, int to, int replaceCount) {
    if (matcher == null || size == 0) {
        return this;
    }
    int replaceLen = (replaceStr == null ? 0 : replaceStr.length());
    char[] buf = buffer;
    for (int i = from; i < to && replaceCount != 0; i++) {
        int removeLen = matcher.isMatch(buf, i, from, to);
        if (removeLen > 0) {
            replaceImpl(i, i + removeLen, removeLen, replaceStr, replaceLen);
            to = to - removeLen + replaceLen;
            i = i + replaceLen - 1;
            if (replaceCount > 0) {
                replaceCount--;
            }
        }
    }
    return this;
}

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