Determine if a string is squeezable: Difference between revisions

=={{header|D}}==

{{trans|C#}}

<lang d>import std.stdio;

void squeezable(string s, char rune) {

writeln("squeeze: '", rune, "'");

writeln("old: <<<", s, ">>>, length = ", s.length);

write("new: <<<");

char last = '\0';

int len = 0;

foreach (c; s) {

if (c != last || c != rune) {

write(c);

len++;

}

last = c;

}

writeln(">>>, length = ", len);

writeln;

}

void main() {

squeezable(``, ' ');

squeezable(`"If I were two-faced, would I be wearing this one?" --- Abraham Lincoln `, '-');

squeezable(`..1111111111111111111111111111111111111111111111111111111111111117777888`, '7');

squeezable(`I never give 'em hell, I just tell the truth, and they think it's hell. `, '.');

string s = ` --- Harry S Truman `;

squeezable(s, ' ');

squeezable(s, '-');

squeezable(s, 'r');

}</lang>

{{out}}

<pre>squeeze: ' '

old: <<<>>>, length = 0

new: <<<>>>, length = 0

squeeze: '-'

old: <<<"If I were two-faced, would I be wearing this one?" --- Abraham Lincoln >>>, length = 72

new: <<<"If I were two-faced, would I be wearing this one?" - Abraham Lincoln >>>, length = 70

squeeze: '7'

old: <<<..1111111111111111111111111111111111111111111111111111111111111117777888>>>, length = 72

new: <<<..1111111111111111111111111111111111111111111111111111111111111117888>>>, length = 69

squeeze: '.'

old: <<<I never give 'em hell, I just tell the truth, and they think it's hell. >>>, length = 72

new: <<<I never give 'em hell, I just tell the truth, and they think it's hell. >>>, length = 72

squeeze: ' '

old: <<< --- Harry S Truman >>>, length = 72

new: <<< --- Harry S Truman >>>, length = 20

squeeze: '-'

old: <<< --- Harry S Truman >>>, length = 72

new: <<< - Harry S Truman >>>, length = 70

squeeze: 'r'

old: <<< --- Harry S Truman >>>, length = 72

new: <<< --- Hary S Truman >>>, length = 71</pre>