Fix micro symbol issue. (#4484)

Author: pjhampton

lib/DDG/Goodie/Conversions.pm

@@ -205,6 +205,9 @@ handle query => sub {
     $_ =~ s/"/inch/;
     $_ =~ s/'/foot/;
 
+    # hack around the dropped micro symbol
+    $_ =~ s/μ/micro/;
+
     if($_ =~ /(\d+)\s*(?:feet|foot)\s*(\d+)(?:\s*inch(?:es)?)?/i){
         my $feetHack = $1 + $2/12;
         $_ =~ s/(\d+)\s*(?:feet|foot)\s*(\d+)(?:\s*inch(?:es)?)?/$feetHack feet/i;

share/goodie/conversions/triggers.yml

@@ -60,6 +60,9 @@ aliases:
   - mcgs
   - microgram
   - micrograms
+  - microg
+  - micro g
+  - micro grams
 type: mass
 unit: microgram
 symbols: [µg]
@@ -368,6 +371,8 @@ aliases:
   - micrometers
   - micro meter
   - micro meters
+  - microm
+  - micro m
   - µms
   - µm
 type: length
@@ -760,6 +765,8 @@ aliases:
   - micro seconds
   - micro-second
   - micro-seconds
+  - micros
+  - micro s
   - µs
 type: duration
 unit: microsecond

t/Conversions.t

@@ -2644,7 +2644,38 @@ ddg_goodie_test(
             physical_quantity => 'length'
         })
     ),
-
+    'nanometer to micron' => test_zci(
+        '', structured_answer => make_answer({
+            raw_input => '1',
+            from_unit => 'nanometer',
+            to_unit => 'micrometer',
+            physical_quantity => 'length'
+        })
+    ),
+    'nanometer to μm ' => test_zci(
+        '', structured_answer => make_answer({
+            raw_input => '1',
+            from_unit => 'nanometer',
+            to_unit => 'micrometer',
+            physical_quantity => 'length'
+        })
+    ),
+    'seconds to μs' => test_zci(
+        '', structured_answer => make_answer({
+            raw_input => '1',
+            from_unit => 'second',
+            to_unit => 'microsecond',
+            physical_quantity => 'duration'
+        })
+    ),
+    'grams to μg' => test_zci(
+        '', structured_answer => make_answer({
+            raw_input => '1',
+            from_unit => 'gram',
+            to_unit => 'microgram',
+            physical_quantity => 'mass'
+        })
+    ),
 
     # natural language queries
     'unit converter' => test_zci(