public String parse(String text) {
if (text != null && !text.isEmpty()) {
char[] src = text.toCharArray();
int offset = 0;
int start = text.indexOf(this.openToken, offset);
if (start == -1) {
return text;
} else {
StringBuilder builder = new StringBuilder();
for(StringBuilder expression = null; start > -1;
start = text.indexOf(this.openToken, offset)) {
if (start > 0 && src[start - 1] == '\\') {
builder.append(src, offset, start - offset - 1).append(this.openToken);
offset = start + this.openToken.length();
} else {
if (expression == null) {
expression = new StringBuilder();
} else {
expression.setLength(0);
}
builder.append(src, offset, start - offset);
offset = start + this.openToken.length();
int end;
for(end = text.indexOf(this.closeToken, offset); end > -1;
end = text.indexOf(this.closeToken, offset)) {
if (end <= offset || src[end - 1] != '\\') {
expression.append(src, offset, end - offset);
int var10000 = end + this.closeToken.length();
break;
}
expression.append(src, offset, end - offset - 1)
.append(this.closeToken);
offset = end + this.closeToken.length();
}
if (end == -1) {
builder.append(src, start, src.length - start);
offset = src.length;
} else {
builder.append(this.handler.handleToken(expression.toString()));
offset = end + this.closeToken.length();
}
}
}
if (offset < src.length) {
builder.append(src, offset, src.length - offset);
}
return builder.toString();
}
} else {
return "";
}
}