Impossible to set output presision to 0 (no fractional part)

[puzrin]

On big images (1000x1000) there are no needs to have fractional part in paths. But SVGO allow only 1 digit minimum after dot.

I did a quick test with regexp:

glyph.d = glyph.d.replace(
  /\d+\.\d+/g,
  function (match) { return Math.round(match) + ''; }
);

~20% profit.

[puzrin]

hm... tested this super-optimizer on 300 glyphs, and found 2, where curves change direction. See attached originals (not passed svgo)

<svg height="1000" width="1000" xmlns="http://www.w3.org/2000/svg"><path d="M0 -32v512h512v-512h-512zM96 161q0 -100 112 -98h120q82 12 89 97v45q-2 30 -20 43.5t-43 14.5q5 18 1 48q-3 31 -24 51.5t-57 23.5h-98q-33 -5 -55 -24.5t-25 -50.5v-150zM145.5 146q-8.5 15 0 30t28.5 18h146q21 -3 29.5 -18t0.5 -30t-28 -18h-146q-22 3 -30.5 18z
M163.5 281.5q-7.5 13.5 0.5 27t28 16.5h80q21 -2 28.5 -15.5t-0.5 -27t-28 -17.5h-80q-21 3 -28.5 16.5z" transform="translate(0 500) scale(1 -1) translate(0 -500) scale(1.953125) translate(0 32)" /></svg>

<svg height="1000" width="1000" xmlns="http://www.w3.org/2000/svg"><path d="M0 -32v512h512v-512h-512zM77 266q-1 -21 3.5 -34t10 -17t14.5 -7l1 -134q0 -1 1 -8t1.5 -8.5t3 -6.5t5.5 -7t9.5 -4.5t15.5 -3.5l54 -1q29 -4 40 39q4 -36 32 -37h63q1 1 5 2t5.5 1.5t5 1.5t5 2.5t4 3.5t3.5 5t2 6.5t2 8.5l1 140l16 -1q14 2 22 6.5t15 19.5v42
q-1 6 -2.5 9.5t-3 4.5t-3.5 2.5t-3 2.5q9 2 13 3.5t9.5 9.5t7.5 22l-1 34q1 30 -41 42q-35 5 -48 5q-31 0 -56 -14q-41 15 -77 12q-98 -9 -105 -96q-14 -1 -22 -10t-8 -36zM113 283l31 -2l-1 12l1 9v9.5t1 10t2 11t3.5 9.5t5 10t7 8t10 7.5t13 5t16.5 3.5q4 0 10 0.5t8 0.5
q16 0 46 -9l1 -41q-27 10 -34 9q-13 0 -20.5 -4.5t-9 -9.5t-3.5 -14v-29l73 -1v19.5t0.5 21t3.5 18t8.5 17.5t16 11.5t26.5 7.5q40 6 72 -8l-1 -43q-12 10 -37 13q-12 1 -19 -1.5t-9 -8t-3.5 -13.5t-1 -16t0.5 -16h52v-38h-52v-173l-57 1v172l-75 -2v-170h-58l2 170h-28z
" transform="translate(0 500) scale(1 -1) translate(0 -500) scale(1.953125) translate(0 32)" /></svg>

changed algorythm, but result is less impressive (10%)

    glyph.d = glyph.d.replace(
      /\d+\.\d+/g,
      function (match) {
        if (+match > 100) {
          return Number(match).toFixed(0) + '';
        }
        return Number(match).toFixed(1) + '';
      }
    );

Seems, curves should be rounded more intelegently. Note, that original source was optimized by fonrtforge, and gives bette results, than SVGO now.