Generated by SassMeister.com.

SassMeister-input.scss

// ----
// libsass (v3.1.0)
// ----

$asset-pipeline: false;

@mixin font-face(
  $font-family,
  $file-path,
  $weight: normal,
  $style: normal,
  $asset-pipeline: $asset-pipeline,
  $file-formats: eot woff2 woff ttf svg) {

  $font-url-prefix: font-url-prefixer($asset-pipeline);

  @font-face {
    font-family: $font-family;
    font-style: $style;
    font-weight: $weight;

    src: font-source-declaration(
      $font-family,
      $file-path,
      $asset-pipeline,
      $file-formats,
      $font-url-prefix
    );
  }
}

// Used for creating the source string for fonts using @font-face
// Reference: http://goo.gl/Ru1bKP

@function font-url-prefixer($asset-pipeline) {
  @if $asset-pipeline == true {
    @return font-url;
  } @else {
    @return url;
  }
}

@function font-source-declaration(
  $font-family,
  $file-path,
  $asset-pipeline,
  $file-formats,
  $font-url) {

  $src: null;

  $formats-map: (
    eot:   "#{$file-path}.eot?#iefix" format("embedded-opentype"),
    woff2: "#{$file-path}.woff2" format("woff2"),
    woff:  "#{$file-path}.woff" format("woff"),
    ttf:   "#{$file-path}.ttf" format("truetype"),
    svg:   "#{$file-path}.svg##{$font-family}" format("svg")
  );

  @each $key, $values in $formats-map {
    @if contains($file-formats, $key) {
      $file-path: nth($values, 1);
      $font-format: nth($values, 2);

      @if $asset-pipeline == true {
        $src: append($src, font-url($file-path) $font-format, comma);
      } @else {
        $src: append($src, url($file-path) $font-format, comma);
      }
    }
  }

  @return $src;
}

@include font-face(MavenPro, 'fonts/maven-pro/regular/maven-pro-regular-webfont', 100);

SassMeister-output.css

@font-face {
  font-family: MavenPro;
  font-style: normal;
  font-weight: 100;
  src: url("fonts/maven-pro/regular/maven-pro-regular-webfont.eot?#iefix") format("embedded-opentype"), url("fonts/maven-pro/regular/maven-pro-regular-webfont.woff2") format("woff2"), url("fonts/maven-pro/regular/maven-pro-regular-webfont.woff") format("woff"), url("fonts/maven-pro/regular/maven-pro-regular-webfont.ttf") format("truetype"), url("fonts/maven-pro/regular/maven-pro-regular-webfont.svg#MavenPro") format("svg"); }