removed prefix interface

The prefix interface was not really helpfull and caused more problems then it solved. Removing it made a lot of sense. You can easily generate your prefixed units with the Grunt command, just add a new unit in ;

Author: pimlie

Gruntfile.js

@@ -5,60 +5,84 @@ module.exports = function(grunt) {
 
   // Quickly generate all SI prefixed units
   grunt.registerTask('default', function() {
-    var siPrefixes = 'src/Prefix/Metric/',
-        unitFolder = 'src/Unit/',
+    var siPrefixes = [
+     { factor: '-24', symbol: 'y',  label: 'yocto' },
+     { factor: '-21', symbol: 'z',  label: 'zepto' },
+     { factor: '-18', symbol: 'a',  label: 'atto' },
+     { factor: '-15', symbol: 'f',  label: 'femto' },
+     { factor: '-12', symbol: 'p',  label: 'pico' },
+     { factor: '-9',  symbol: 'n',  label: 'nano' },
+     { factor: '-6',  symbol: 'μ',  label: 'micro' },
+     { factor: '-3',  symbol: 'm',  label: 'milli' },
+     { factor: '-2',  symbol: 'c',  label: 'centi' },
+     { factor: '-1',  symbol: 'd',  label: 'deci' },
+     { factor: '1',   symbol: 'da', label: 'deca' },
+     { factor: '2',   symbol: 'h',  label: 'hecto' },
+     { factor: '3',   symbol: 'k',  label: 'kilo' },
+     { factor: '6',   symbol: 'M',  label: 'mega' },
+     { factor: '9',   symbol: 'G',  label: 'giga' },
+     { factor: '12',  symbol: 'T',  label: 'tera' },
+     { factor: '15',  symbol: 'P',  label: 'peta' },
+     { factor: '18',  symbol: 'E',  label: 'exa' },
+     { factor: '21',  symbol: 'Z',  label: 'zetta' },
+     { factor: '24',  symbol: 'Y',  label: 'yotta' },
+    ];
+    var unitFolder = 'src/Unit/',
         fileExt = '.php',
         baseUnits = {},
-        units = {   'Mass' : '', 
-                    'Length': '', 
-                    'Area': 'Square', 
-                    'Volume': 'Cubic',
-                };
-        phpTemplate = `<?php
-namespace PhpMeasurements\\Unit\\<%= unit %>;
+        units = [
+            { unit: 'Mass',   symbol: 'g', label: 'gram', prefix: '' }, 
+            { unit: 'Length', symbol: 'm', label: 'meter', prefix: '' }, 
+            { unit: 'Area',   symbol: 'm', label: 'meter', prefix: 'Square' },
+            { unit: 'Volume', symbol: 'm', label: 'meter', prefix: 'Cubic' },
+         ];
+    phpTemplate = `<?php
+namespace PhpUnitConversion\\Unit\\<%= unit %>;
 
-use PhpMeasurements\\System\\Metric;
-use PhpMeasurements\\Prefix\\Metric\\<%= prefixSI %>;
+use PhpUnitConversion\\System\\Metric;
 
-class <%= baseUnitPrefix %><%= prefixSI %><%= baseUnit %> extends <%= baseUnitPrefix %><%= baseUnit %> implements Metric, <%= prefixSI %>
+class <%= baseUnitPrefix %><%= prefixSI %><%= baseUnit %> extends <%= baseUnitPrefix %><%= baseUnit %> implements Metric
 {
-    
+    const FACTOR = <%= factor %>;
+
+    const SYMBOL = '<%= symbol %>';
+    const LABEL = '<%= label %>';
 }
 `;
     var baseRegex = /BASE_UNIT\s*=\s*([^:]+)::/,
         replaceExt = new RegExp(fileExt);
 
-    grunt.file.recurse(siPrefixes, function(abspath, rootdir, subdir, filename) {
-        for(var unit in units) {
-            var baseUnitPrefix = units[unit];
-            
-            if(!baseUnits[unit]) {
-                var baseContent = grunt.file.read(unitFolder + unit + fileExt),
-                    matches = baseRegex.exec(baseContent),
-                    baseUnit = matches[1].split('\\').pop();
-                
-                baseUnit = baseUnit.replace(new RegExp(baseUnitPrefix), '');
-                baseUnits[unit] = baseUnit;
-            }else{
-                baseUnit = baseUnits[unit];
-            }
-            
-            if(baseUnit) {
-                var prefixSI = filename.replace(replaceExt, ''),
-                    phpFileName = unitFolder + unit + '/' + baseUnitPrefix + prefixSI + baseUnit + fileExt;
-                    
-                
-                if(!grunt.file.exists(phpFileName)) {
-                    grunt.file.write(phpFileName, 
-                        grunt.template.process(phpTemplate, { data: { unit: unit, prefixSI: prefixSI, baseUnit: baseUnit, baseUnitPrefix: baseUnitPrefix }})
-                    );
-                }
-            }
+    //grunt.file.recurse(siPrefixes, function(abspath, rootdir, subdir, filename) {
+    for (var u = 0; u < units.length; u++) {
+      var baseUnitPrefix = units[u].prefix,
+          baseUnit = units[u].label.replace(/\b./g, function(m){ return m.toUpperCase(); })
+
+      if(baseUnit) {
+        for (var i = 0; i < siPrefixes.length; i++) {
+          siPrefix = siPrefixes[i]
+          var prefixSI = siPrefix.label.replace(/\b./g, function(m){ return m.toUpperCase(); }) /*filename.replace(replaceExt, '')*/,
+              phpFileName = unitFolder + units[u].unit + '/' + baseUnitPrefix + prefixSI + baseUnit + fileExt,
+              factor = '1E' + siPrefix.factor * (baseUnitPrefix === 'Cubic' ? 3 : (baseUnitPrefix === 'Square' ? 2 : 1)),
+              symbol = siPrefix.symbol + units[u].symbol + (baseUnitPrefix === 'Cubic' ? '3' : (baseUnitPrefix === 'Square' ? '2' : '')),
+              label = (baseUnitPrefix ? baseUnitPrefix.toLowerCase() + ' ' : '') + siPrefix.label + units[u].label;
+
+          if(true||!grunt.file.exists(phpFileName)) {
+            console.log(phpFileName);
+            grunt.file.write(phpFileName, 
+              grunt.template.process(phpTemplate, { data: { 
+                  unit: units[u].unit,
+                  factor: factor,
+                  symbol: symbol,
+                  label: label,
+                  prefixSI: prefixSI,
+                  baseUnit: baseUnit,
+                  baseUnitPrefix: baseUnitPrefix
+                }})
+            );
+          }
         }
-    });
-       
-       
-        
-    
+      }
+    }
+    //});
   });
 };