1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 |
- #!/usr/bin/ruby
- class Format(text, width) {
- method align(j) {
- text.map { |row|
- row.range.map { |i|
- '%-*s ' % (width[i],
- '%*s' % (row[i].len + (width[i]-row[i].len * j/2), row[i]));
- }.join("");
- }.join("\n") + "\n";
- }
- }
- func Formatter(text) {
- var textArr = [];
- var widthArr = [];
- text.each_line {
- var words = .split('$');
- textArr.append(words);
- words.each_kv { |i, word|
- if (i == widthArr.len) {
- widthArr.append(word.len);
- }
- elsif (word.len > widthArr[i]) {
- widthArr[i] = word.len;
- }
- }
- }
- return Format(textArr, widthArr);
- }
- enum |left, middle, right|;
- const text = <<'EOT';
- Given$a$text$file$of$many$lines,$where$fields$within$a$line$
- are$delineated$by$a$single$'dollar'$character,$write$a$program
- that$aligns$each$column$of$fields$by$ensuring$that$words$in$each$
- column$are$separated$by$at$least$one$space.
- Further,$allow$for$each$word$in$a$column$to$be$either$left$
- justified,$right$justified,$or$center$justified$within$its$column.
- EOT
- var f = Formatter(text);
- say f.align(left);
- say f.align(middle);
- say f.align(right);
|