| var OMIT_PLUSSIGN = /^(?:\+|(-))?0*(\d*)(?:\.0*|(\.\d*?)0*)?$/; |
| var KEEP_PLUSSIGN = /^([\+\-])?0*(\d*)(?:\.0*|(\.\d*?)0*)?$/; |
| var unsafeToRemovePlusSignAfter = { |
| Dimension: true, |
| HexColor: true, |
| Identifier: true, |
| Number: true, |
| Raw: true, |
| UnicodeRange: true |
| }; |
| |
| function packNumber(value, item) { |
| // omit plus sign only if no prev or prev is safe type |
| var regexp = item && item.prev !== null && unsafeToRemovePlusSignAfter.hasOwnProperty(item.prev.data.type) |
| ? KEEP_PLUSSIGN |
| : OMIT_PLUSSIGN; |
| |
| // 100 -> '100' |
| // 00100 -> '100' |
| // +100 -> '100' (only when safe, e.g. omitting plus sign for 1px+1px leads to single dimension instead of two) |
| // -100 -> '-100' |
| // 0.123 -> '.123' |
| // 0.12300 -> '.123' |
| // 0.0 -> '' |
| // 0 -> '' |
| // -0 -> '-' |
| value = String(value).replace(regexp, '$1$2$3'); |
| |
| if (value === '' || value === '-') { |
| value = '0'; |
| } |
| |
| return value; |
| } |
| |
| module.exports = function(node, item) { |
| node.value = packNumber(node.value, item); |
| }; |
| module.exports.pack = packNumber; |