diff options
Diffstat (limited to 'node_modules/svgo/plugins/cleanupNumericValues.js')
| -rw-r--r-- | node_modules/svgo/plugins/cleanupNumericValues.js | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/node_modules/svgo/plugins/cleanupNumericValues.js b/node_modules/svgo/plugins/cleanupNumericValues.js new file mode 100644 index 00000000..487443a5 --- /dev/null +++ b/node_modules/svgo/plugins/cleanupNumericValues.js @@ -0,0 +1,76 @@ +'use strict'; + +exports.type = 'perItem'; + +exports.active = true; + +exports.description = 'rounds numeric values to the fixed precision, removes default ‘px’ units'; + +exports.params = { + floatPrecision: 3, + leadingZero: true, + defaultPx: true, + convertToPx: true +}; + +var regNumericValues = /^([\-+]?\d*\.?\d+([eE][\-+]?\d+)?)(px|pt|pc|mm|cm|m|in|ft|em|ex|%)?$/, + removeLeadingZero = require('../lib/svgo/tools').removeLeadingZero, + absoluteLengths = { // relative to px + cm: 96/2.54, + mm: 96/25.4, + in: 96, + pt: 4/3, + pc: 16 + }; + +/** + * Round numeric values to the fixed precision, + * remove default 'px' units. + * + * @param {Object} item current iteration item + * @param {Object} params plugin params + * @return {Boolean} if false, item will be filtered out + * + * @author Kir Belevich + */ +exports.fn = function(item, params) { + + if (item.isElem()) { + + var match; + + item.eachAttr(function(attr) { + match = attr.value.match(regNumericValues); + + // if attribute value matches regNumericValues + if (match) { + // round it to the fixed precision + var num = +(+match[1]).toFixed(params.floatPrecision), + units = match[3] || ''; + + // convert absolute values to pixels + if (params.convertToPx && units && (units in absoluteLengths)) { + var pxNum = +(absoluteLengths[units] * match[1]).toFixed(params.floatPrecision); + + if (String(pxNum).length < match[0].length) + num = pxNum, + units = 'px'; + } + + // and remove leading zero + if (params.leadingZero) { + num = removeLeadingZero(num); + } + + // remove default 'px' units + if (params.defaultPx && units === 'px') { + units = ''; + } + + attr.value = num + units; + } + }); + + } + +}; |
