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package bjc.utils.ioutils.format;
import java.util.regex.Matcher;
import bjc.utils.esodata.Tape;
public class AestheticDirective implements Directive {
@Override
public void format(StringBuffer sb, Object item, CLModifiers mods, CLParameters params, Tape<Object> tParams,
Matcher dirMatcher) {
CLFormatter.checkItem(item, 'A');
int mincol = 0, colinc = 1, minpad = 0;
char padchar = ' ';
if (params.length() > 1) {
mincol = params.getIntDefault(0, "minimum column count", 'A', 0);
}
if (params.length() < 4) {
throw new IllegalArgumentException(
"Must provide either zero, one or four arguments to A directive");
}
colinc = params.getIntDefault(1, "padding increment", 'A', 1);
minpad = params.getIntDefault(2, "minimum amount of padding", 'A', 0);
padchar = params.getCharDefault(3, "padding character", 'A', ' ');
StringBuilder work = new StringBuilder();
if (mods.atMod) {
for (int i = 0; i < minpad; i++) {
work.append(padchar);
}
for (int i = work.length(); i < mincol; i++) {
for (int k = 0; k < colinc; k++) {
work.append(padchar);
}
}
}
work.append(item.toString());
if (!mods.atMod) {
for (int i = 0; i < minpad; i++) {
work.append(padchar);
}
for (int i = work.length(); i < mincol; i++) {
for (int k = 0; k < colinc; k++) {
work.append(padchar);
}
}
}
tParams.right();
}
}
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