Remove trailing whitespaces

27 files changed, 148 insertions, 148 deletions

diff --git a/src/currency-manager.c b/src/currency-manager.c
index d48f99a..40e87a7 100644
--- a/src/currency-manager.c
+++ b/src/currency-manager.c
@@ -274,7 +274,7 @@ download_file(CurrencyManager *manager, gchar *uri, gchar *filename, GAsyncReady
 
     g_file_copy_async(source, dest, G_FILE_COPY_OVERWRITE, G_PRIORITY_DEFAULT, NULL, NULL, NULL, callback, manager);
     g_object_unref(source);
-    g_object_unref(dest); 
+    g_object_unref(dest);
 }
 
 
@@ -287,10 +287,10 @@ load_imf_rates(CurrencyManager *manager)
     GError *error = NULL;
     int i;
     gboolean result, in_data = FALSE;
-    struct 
+    struct
     {
         const gchar *name, *symbol;
-    } name_map[] = 
+    } name_map[] =
     {
         {"Algerian dinar",	"DZD"},
         {"Australian dollar",   "AUD"},
@@ -365,7 +365,7 @@ load_imf_rates(CurrencyManager *manager)
         gchar *line, **tokens;
 
         line = g_strchug(lines[i]);
-      
+
         /* Start after first blank line, stop on next */
         if (line[0] == '\0') {
             if (!in_data) {
@@ -494,7 +494,7 @@ load_ecb_rates(CurrencyManager *manager)
     if (!document)
         g_warning("Couldn't parse ECB rate file %s", filename);
     g_free (filename);
-    if (!document)    
+    if (!document)
         return;
 
     xpath_ctx = xmlXPathNewContext(document);
@@ -564,7 +564,7 @@ load_rates(CurrencyManager *manager)
     loaded_rates = TRUE;
 
     g_signal_emit(manager, signals[UPDATED], 0);
-  
+
     return TRUE;
 }
 
diff --git a/src/currency-manager.h b/src/currency-manager.h
index c5e8e91..6ed0c30 100644
--- a/src/currency-manager.h
+++ b/src/currency-manager.h
@@ -13,7 +13,7 @@
 
 #include "currency.h"
 #include "mp.h"
- 
+
 G_BEGIN_DECLS
 
 #define CURRENCY_MANAGER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), currency_manager_get_type(), CurrencyManager))
diff --git a/src/mate-calc-cmd.c b/src/mate-calc-cmd.c
index 9c424af..b4fb301 100644
--- a/src/mate-calc-cmd.c
+++ b/src/mate-calc-cmd.c
@@ -29,17 +29,17 @@ solve(const char *equation)
     MPEquationOptions options;
     MPNumber z;
     gchar *result_str = NULL;
-    
+
     memset(&options, 0, sizeof(options));
     options.base = 10;
     options.wordlen = 32;
     options.angle_units = MP_DEGREES;
-    
+
     ret = mp_equation_parse(equation, &options, &z, NULL);
 
     if (ret == PARSER_ERR_MP)
         fprintf(stderr, "Error %s\n", mp_get_error());
-    else if (ret)        
+    else if (ret)
         fprintf(stderr, "Error %d\n", ret);
     else {
         result_str = mp_serializer_to_string(result_serializer, &z);
diff --git a/src/math-buttons.c b/src/math-buttons.c
index 3f9be51..7437369 100644
--- a/src/math-buttons.c
+++ b/src/math-buttons.c
@@ -323,7 +323,7 @@ set_data(GtkBuilder *ui, const gchar *object_name, const gchar *name, const char
 static void
 set_int_data(GtkBuilder *ui, const gchar *object_name, const gchar *name, gint value)
 {
-    GObject *object;  
+    GObject *object;
     object = gtk_builder_get_object(ui, object_name);
     if (object)
         g_object_set_data(object, name, GINT_TO_POINTER(value));
@@ -369,7 +369,7 @@ update_bit_panel(MathButtons *buttons)
 
     if (!buttons->priv->bit_panel)
         return;
-  
+
     enabled = math_equation_get_number(buttons->priv->equation, &x);
 
     if (enabled) {
@@ -385,7 +385,7 @@ update_bit_panel(MathButtons *buttons)
 
     gtk_widget_set_sensitive(buttons->priv->bit_panel, enabled);
     gtk_widget_set_sensitive(buttons->priv->base_label, enabled);
-      
+
     if (!enabled)
         return;
 
@@ -399,7 +399,7 @@ update_bit_panel(MathButtons *buttons)
         gtk_label_set_text(GTK_LABEL(buttons->priv->bit_labels[i]), label);
     }
 
-    base = math_equation_get_base(buttons->priv->equation);      
+    base = math_equation_get_base(buttons->priv->equation);
     label = g_string_new("");
     if (base != 8) {
         if (label->len != 0)
@@ -453,7 +453,7 @@ base_changed_cb(MathEquation *equation, GParamSpec *spec, MathButtons *buttons)
     GtkTreeModel *model;
     GtkTreeIter iter;
     gboolean valid;
-  
+
     if (buttons->priv->mode != PROGRAMMING)
         return;
 
@@ -513,7 +513,7 @@ load_mode(MathButtons *buttons, ButtonMode mode)
         panel = &buttons->priv->prog_panel;
         break;
     }
-  
+
     if (*panel)
         goto out;
 
@@ -544,7 +544,7 @@ load_mode(MathButtons *buttons, ButtonMode mode)
 
         if (button_data[i].tooltip)
             gtk_widget_set_tooltip_text(button, _(button_data[i].tooltip));
-      
+
         atk_object_set_name(gtk_widget_get_accessible(button), button_data[i].widget_name);
     }
 
@@ -574,7 +574,7 @@ load_mode(MathButtons *buttons, ButtonMode mode)
         buffer[len] = '\0';
         gtk_button_set_label(GTK_BUTTON(widget), buffer);
     }
-  
+
     widget = GET_WIDGET(builder, "calc_superscript_button");
     if (widget) {
         buttons->priv->superscript_toggles = g_list_append(buttons->priv->superscript_toggles, widget);
@@ -666,7 +666,7 @@ load_mode(MathButtons *buttons, ButtonMode mode)
     gtk_builder_connect_signals(builder, buttons);
 
     display_changed_cb(buttons->priv->equation, NULL, buttons);
-  
+
 out:
     return *panel;
 }
@@ -684,7 +684,7 @@ converter_changed_cb(MathConverter *converter, MathButtons *buttons)
     }
     else {
         math_equation_set_source_units(buttons->priv->equation, unit_get_name(from_unit));
-        math_equation_set_target_units(buttons->priv->equation, unit_get_name(to_unit));      
+        math_equation_set_target_units(buttons->priv->equation, unit_get_name(to_unit));
     }
 
     g_object_unref(from_unit);
@@ -703,7 +703,7 @@ load_buttons(MathButtons *buttons)
     if (!buttons->priv->converter) {
         buttons->priv->converter = math_converter_new(buttons->priv->equation);
         g_signal_connect(buttons->priv->converter, "changed", G_CALLBACK(converter_changed_cb), buttons);
-        gtk_box_pack_start(GTK_BOX(buttons), GTK_WIDGET(buttons->priv->converter), FALSE, TRUE, 0);      
+        gtk_box_pack_start(GTK_BOX(buttons), GTK_WIDGET(buttons->priv->converter), FALSE, TRUE, 0);
     }
 
     panel = load_mode(buttons, buttons->priv->mode);
@@ -725,12 +725,12 @@ void
 math_buttons_set_mode(MathButtons *buttons, ButtonMode mode)
 {
     g_return_if_fail(buttons != NULL);
- 
+
     if (buttons->priv->mode == mode)
         return;
 
     buttons->priv->mode = mode;
-  
+
     if (mode == PROGRAMMING)
         math_equation_set_base(buttons->priv->equation, buttons->priv->programming_base);
     else
@@ -802,7 +802,7 @@ G_MODULE_EXPORT
 void
 subtract_cb(GtkWidget *widget, MathButtons *buttons)
 {
-    math_equation_insert_subtract(buttons->priv->equation);  
+    math_equation_insert_subtract(buttons->priv->equation);
 }
 
 
@@ -880,7 +880,7 @@ memory_cb(GtkWidget *widget, MathButtons *buttons)
     popup = math_variable_popup_new(buttons->priv->equation);
     gtk_window_set_transient_for(GTK_WINDOW(popup), GTK_WINDOW(gtk_widget_get_toplevel(widget)));
 
-    gtk_widget_get_allocation(widget, &allocation); 
+    gtk_widget_get_allocation(widget, &allocation);
     gdk_window_get_root_coords(gtk_widget_get_window(widget), allocation.x, allocation.y, &x, &y);
     gtk_window_move(GTK_WINDOW(popup), x, y);
     gtk_widget_show(GTK_WIDGET(popup));
@@ -969,7 +969,7 @@ shift_right_cb(GtkWidget *widget, MathButtons *buttons)
         }
     }
 
-    popup_button_menu(widget, GTK_MENU(buttons->priv->shift_right_menu));  
+    popup_button_menu(widget, GTK_MENU(buttons->priv->shift_right_menu));
 }
 
 
@@ -988,10 +988,10 @@ function_cb(GtkWidget *widget, MathButtons *buttons)
     if (!buttons->priv->function_menu) {
         gint i;
         GtkWidget *menu;
-        struct 
+        struct
         {
             gchar *name, *function;
-        } functions[] = 
+        } functions[] =
         {
             { /* Tooltip for the integer component button */
               N_("Integer Component"), "int " },
@@ -1013,7 +1013,7 @@ function_cb(GtkWidget *widget, MathButtons *buttons)
 
         for (i = 0; functions[i].name != NULL; i++) {
             GtkWidget *item;
-          
+
             item = gtk_menu_item_new_with_label(_(functions[i].name));
             g_object_set_data(G_OBJECT(item), "function", g_strdup(functions[i].function));
             gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
@@ -1022,7 +1022,7 @@ function_cb(GtkWidget *widget, MathButtons *buttons)
         }
     }
 
-    popup_button_menu(widget, GTK_MENU(buttons->priv->function_menu));  
+    popup_button_menu(widget, GTK_MENU(buttons->priv->function_menu));
 }
 
 static void
@@ -1040,10 +1040,10 @@ const_cb(GtkWidget *widget, MathButtons *buttons)
     if (!buttons->priv->const_menu) {
         gint i;
         GtkWidget *menu;
-        struct 
+        struct
         {
             gchar *name, *constant, *tooltip;
-        } constants[] = 
+        } constants[] =
         {
             { /* Tooltip for the c₀ component button */
               N_("Velocity of Light"), "c₀", N_("299,792,458 m/s") },
@@ -1071,7 +1071,7 @@ const_cb(GtkWidget *widget, MathButtons *buttons)
 
         for (i = 0; constants[i].name != NULL; i++) {
             GtkWidget *item;
-          
+
             item = gtk_menu_item_new_with_label(_(constants[i].name));
             gtk_widget_set_tooltip_text(item, _(constants[i].tooltip));
             g_object_set_data(G_OBJECT(item), "const", g_strdup(constants[i].constant));
@@ -1081,7 +1081,7 @@ const_cb(GtkWidget *widget, MathButtons *buttons)
         }
     }
 
-    popup_button_menu(widget, GTK_MENU(buttons->priv->const_menu));  
+    popup_button_menu(widget, GTK_MENU(buttons->priv->const_menu));
 }
 
 void factorize_cb(GtkWidget *widget, MathButtons *buttons);
@@ -1199,7 +1199,7 @@ character_code_dialog_response_cb(GtkWidget *dialog, gint response_id, MathButto
 
     text = gtk_entry_get_text(GTK_ENTRY(buttons->priv->character_code_entry));
 
-    if (response_id == GTK_RESPONSE_OK) {     
+    if (response_id == GTK_RESPONSE_OK) {
         MPNumber x;
         int i = 0;
 
@@ -1303,7 +1303,7 @@ number_mode_changed_cb(MathEquation *equation, GParamSpec *spec, MathButtons *bu
 {
     GList *i;
     NumberMode mode;
-  
+
     mode = math_equation_get_number_mode(equation);
 
     for (i = buttons->priv->superscript_toggles; i; i = i->next) {
diff --git a/src/math-converter.c b/src/math-converter.c
index d5c637c..fa06a09 100644
--- a/src/math-converter.c
+++ b/src/math-converter.c
@@ -136,7 +136,7 @@ update_from_model(MathConverter *converter)
             UnitCategory *category = iter->data;
             GtkTreeIter parent;
             const GList *unit_iter;
-          
+
             gtk_tree_store_append(from_model, &parent, NULL);
             gtk_tree_store_set(from_model, &parent, 0, unit_category_get_display_name(category), 1, category, -1);
 
@@ -198,14 +198,14 @@ iter_is_unit(GtkTreeModel *model, GtkTreeIter *iter, Unit *unit)
     Unit *u;
 
     gtk_tree_model_get(model, iter, 2, &u, -1);
-  
+
     if (!u)
         return FALSE;
 
     g_object_unref(u);
     if (u == unit)
         return TRUE;
-  
+
     return FALSE;
 }
 
@@ -217,7 +217,7 @@ set_active_unit(GtkComboBox *combo, GtkTreeIter *iter, Unit *unit)
     GtkTreeIter child_iter;
 
     model = gtk_combo_box_get_model(combo);
-  
+
     if (iter && iter_is_unit(model, iter, unit)) {
         gtk_combo_box_set_active_iter(combo, iter);
         return TRUE;
@@ -225,12 +225,12 @@ set_active_unit(GtkComboBox *combo, GtkTreeIter *iter, Unit *unit)
 
     if (!gtk_tree_model_iter_children(model, &child_iter, iter))
         return FALSE;
-  
+
     do {
         if (set_active_unit(combo, &child_iter, unit))
             return TRUE;
     } while (gtk_tree_model_iter_next(model, &child_iter));
-  
+
     return FALSE;
 }
 
@@ -327,7 +327,7 @@ from_combobox_changed_cb(GtkWidget *combo, MathConverter *converter)
     /* Select the first possible unit */
     gtk_combo_box_set_active(GTK_COMBO_BOX(converter->priv->to_combo), 0);
 
-    g_object_unref(category);  
+    g_object_unref(category);
     g_object_unref(unit);
 }
 
diff --git a/src/math-display.c b/src/math-display.c
index e7ce8c3..9669a0e 100644
--- a/src/math-display.c
+++ b/src/math-display.c
@@ -477,7 +477,7 @@ math_display_class_init(MathDisplayClass *klass)
 }
 
 
-static void 
+static void
 math_display_init(MathDisplay *display)
 {
     display->priv = math_display_get_instance_private (display);
diff --git a/src/math-equation.c b/src/math-equation.c
index c8bca64..3b0e4d8 100644
--- a/src/math-equation.c
+++ b/src/math-equation.c
@@ -43,7 +43,7 @@ enum {
     PROP_SOURCE_CURRENCY,
     PROP_TARGET_CURRENCY,
     PROP_SOURCE_UNITS,
-    PROP_TARGET_UNITS,  
+    PROP_TARGET_UNITS,
     PROP_SERIALIZER
 };
 
@@ -84,7 +84,7 @@ struct MathEquationPrivate
     GList *undo_stack;        /* History of expression mode states */
     GList *redo_stack;
     gboolean in_undo_operation;
-  
+
     gboolean in_reformat;
 
     gboolean in_delete;
@@ -124,7 +124,7 @@ static void
 get_ans_offsets(MathEquation *equation, gint *start, gint *end)
 {
     GtkTextIter iter;
-  
+
     if (!equation->priv->ans_start) {
         *start = *end = -1;
         return;
@@ -268,7 +268,7 @@ reformat_separators(MathEquation *equation)
                 offset--;
             }
             else
-                last_is_tsep = TRUE;            
+                last_is_tsep = TRUE;
         }
         else {
             in_number = in_radix = FALSE;
@@ -319,7 +319,7 @@ get_current_state(MathEquation *equation)
     state->can_super_minus = equation->priv->can_super_minus;
     state->entered_multiply = equation->priv->state.entered_multiply;
     state->status = g_strdup(equation->priv->state.status);
-  
+
     return state;
 }
 
@@ -353,7 +353,7 @@ math_equation_push_undo_stack(MathEquation *equation)
     equation->priv->redo_stack = NULL;
 
     state = get_current_state(equation);
-    equation->priv->undo_stack = g_list_prepend(equation->priv->undo_stack, state);  
+    equation->priv->undo_stack = g_list_prepend(equation->priv->undo_stack, state);
 }
 
 
@@ -382,7 +382,7 @@ static void
 apply_state(MathEquation *equation, MathEquationState *state)
 {
     GtkTextIter cursor;
-  
+
     /* Disable undo detection */
     equation->priv->in_undo_operation = TRUE;
 
@@ -765,7 +765,7 @@ math_equation_set_status(MathEquation *equation, const gchar *status)
 
     g_free(equation->priv->state.status);
     equation->priv->state.status = g_strdup(status);
-    g_object_notify(G_OBJECT(equation), "status");    
+    g_object_notify(G_OBJECT(equation), "status");
 }
 
 
@@ -790,7 +790,7 @@ math_equation_is_result(MathEquation *equation)
 {
     char *text;
     gboolean result;
-  
+
     g_return_val_if_fail(equation != NULL, FALSE);
 
     text = math_equation_get_equation(equation);
@@ -839,7 +839,7 @@ math_equation_get_equation(MathEquation *equation)
         next_is_digit = g_unichar_isdigit(g_utf8_get_char(g_utf8_next_char(read_iter)));
 
         /* Replace ans text with variable */
-        if (offset == ans_start) { 
+        if (offset == ans_start) {
              g_string_append(eq_text, "ans");
              read_iter = g_utf8_offset_to_pointer(read_iter, ans_end - ans_start - 1);
              offset += ans_end - ans_start - 1;
@@ -940,7 +940,7 @@ void
 math_equation_store(MathEquation *equation, const gchar *name)
 {
     MPNumber t;
-  
+
     g_return_if_fail(equation != NULL);
     g_return_if_fail(name != NULL);
 
@@ -1109,7 +1109,7 @@ variable_is_defined(const char *name, void *data)
     for (c = lower_name; *c; c++)
         *c = tolower(*c);
 
-    if (strcmp(lower_name, "rand") == 0 || 
+    if (strcmp(lower_name, "rand") == 0 ||
         strcmp(lower_name, "ans") == 0) {
         g_free(lower_name);
         return 1;
@@ -1579,7 +1579,7 @@ math_equation_get_property(GObject    *object,
         g_value_set_string(value, self->priv->state.status);
         break;
     case PROP_DISPLAY:
-        text = math_equation_get_display(self);      
+        text = math_equation_get_display(self);
         g_value_set_string(value, text);
         g_free(text);
         break;
@@ -1736,7 +1736,7 @@ math_equation_class_init(MathEquationClass *klass)
                                     g_param_spec_int("base",
                                                      "base",
                                                      "Default number base (derived from number-format)",
-                                                     2, 16, 10, 
+                                                     2, 16, 10,
                                                      G_PARAM_READWRITE));
     g_object_class_install_property(object_class,
                                     PROP_WORD_SIZE,
@@ -1800,10 +1800,10 @@ pre_insert_text_cb(MathEquation  *equation,
 {
     gunichar c;
     gint cursor;
-  
+
     if (equation->priv->in_reformat)
         return;
-  
+
     /* If following a delete then have already pushed undo stack (GtkTextBuffer
        doesn't indicate replace operations so we have to infer them) */
     if (!equation->priv->in_delete)
@@ -1826,7 +1826,7 @@ pre_insert_text_cb(MathEquation  *equation,
 
         offset = gtk_text_iter_get_offset(location);
         get_ans_offsets(equation, &ans_start, &ans_end);
-      
+
         /* Inserted inside ans */
         if (offset > ans_start && offset < ans_end)
             clear_ans(equation, TRUE);
@@ -1837,7 +1837,7 @@ pre_insert_text_cb(MathEquation  *equation,
 static gboolean
 on_delete(MathEquation *equation)
 {
-    equation->priv->in_delete = FALSE;  
+    equation->priv->in_delete = FALSE;
     return FALSE;
 }
 
@@ -1847,7 +1847,7 @@ pre_delete_range_cb(MathEquation  *equation,
                     GtkTextIter   *start,
                     GtkTextIter   *end,
                     gpointer       user_data)
-{  
+{
     if (equation->priv->in_reformat)
         return;
 
@@ -1863,7 +1863,7 @@ pre_delete_range_cb(MathEquation  *equation,
         start_offset = gtk_text_iter_get_offset(start);
         end_offset = gtk_text_iter_get_offset(end);
         get_ans_offsets(equation, &ans_start, &ans_end);
-      
+
         /* Deleted part of ans */
         if (start_offset < ans_end && end_offset > ans_start)
             clear_ans(equation, TRUE);
@@ -1924,7 +1924,7 @@ math_equation_init(MathEquation *equation)
     equation->priv = math_equation_get_instance_private (equation);
 
     g_signal_connect(equation, "insert-text", G_CALLBACK(pre_insert_text_cb), equation);
-    g_signal_connect(equation, "delete-range", G_CALLBACK(pre_delete_range_cb), equation);  
+    g_signal_connect(equation, "delete-range", G_CALLBACK(pre_delete_range_cb), equation);
     g_signal_connect_after(equation, "insert-text", G_CALLBACK(insert_text_cb), equation);
     g_signal_connect_after(equation, "delete-range", G_CALLBACK(delete_range_cb), equation);
 
diff --git a/src/math-preferences.c b/src/math-preferences.c
index adbd58e..33565d9 100644
--- a/src/math-preferences.c
+++ b/src/math-preferences.c
@@ -35,7 +35,7 @@ G_DEFINE_TYPE_WITH_PRIVATE (MathPreferencesDialog, math_preferences, GTK_TYPE_DI
 
 MathPreferencesDialog *
 math_preferences_dialog_new(MathEquation *equation)
-{  
+{
     return g_object_new(math_preferences_get_type(), "equation", equation, NULL);
 }
 
@@ -210,7 +210,7 @@ word_size_cb(MathEquation *equation, GParamSpec *spec, MathPreferencesDialog *di
 static void
 angle_unit_cb(MathEquation *equation, GParamSpec *spec, MathPreferencesDialog *dialog)
 {
-    set_combo_box_from_int(GET_WIDGET(dialog->priv->ui, "angle_unit_combobox"), math_equation_get_angle_units(equation));  
+    set_combo_box_from_int(GET_WIDGET(dialog->priv->ui, "angle_unit_combobox"), math_equation_get_angle_units(equation));
     g_settings_set_enum(g_settings_var, "angle-units", math_equation_get_angle_units(equation));
 }
 
diff --git a/src/math-variable-popup.c b/src/math-variable-popup.c
index 787d13e..fee5526 100644
--- a/src/math-variable-popup.c
+++ b/src/math-variable-popup.c
@@ -72,7 +72,7 @@ variable_name_changed_cb(GtkWidget *widget, MathVariablePopup *popup)
     const gchar *text = gtk_entry_get_text(GTK_ENTRY(popup->priv->variable_name_entry));
     gtk_widget_set_sensitive(popup->priv->add_variable_button, text[0] != '\0');
 }
-                         
+
 
 static void
 add_variable_cb(GtkWidget *widget, MathVariablePopup *popup)
@@ -102,7 +102,7 @@ save_variable_cb(GtkWidget *widget, MathVariablePopup *popup)
     MPNumber z;
 
     name = g_object_get_data(G_OBJECT(widget), "variable_name");
-    if (math_equation_get_number(popup->priv->equation, &z))    
+    if (math_equation_get_number(popup->priv->equation, &z))
         math_variables_set(math_equation_get_variables(popup->priv->equation), name, &z);
     else if (math_equation_is_result(popup->priv->equation))
         math_variables_set(math_equation_get_variables(popup->priv->equation), name, math_equation_get_answer(popup->priv->equation));
@@ -118,7 +118,7 @@ delete_variable_cb(GtkWidget *widget, MathVariablePopup *popup)
 {
     const gchar *name;
 
-    name = g_object_get_data(G_OBJECT(widget), "variable_name");  
+    name = g_object_get_data(G_OBJECT(widget), "variable_name");
     math_variables_delete(math_equation_get_variables(popup->priv->equation), name);
 
     gtk_widget_destroy(gtk_widget_get_toplevel(widget));
diff --git a/src/math-variables.c b/src/math-variables.c
index b8e57cf..225ca9c 100644
--- a/src/math-variables.c
+++ b/src/math-variables.c
@@ -37,24 +37,24 @@ registers_load(MathVariables *variables)
 {
     FILE *f;
     char line[1024];
-    
+
     f = fopen(variables->priv->file_name, "r");
     if (!f)
         return;
-    
+
     g_hash_table_remove_all(variables->priv->registers);
 
     while (fgets(line, 1024, f) != NULL)
     {
         char *name, *value;
         MPNumber *t;
-        
+
         value = strchr(line, '=');
         if (!value)
             continue;
         *value = '\0';
         value = value + 1;
-        
+
         name = g_strstrip(line);
         value = g_strstrip(value);
 
@@ -83,7 +83,7 @@ registers_save(MathVariables *variables)
     f = fopen(variables->priv->file_name, "w");
     if (!f)
         return;
-    
+
     g_hash_table_iter_init(&iter, variables->priv->registers);
     while (g_hash_table_iter_next(&iter, &key, &val))
     {
@@ -107,7 +107,7 @@ math_variables_get_names(MathVariables *variables)
     gpointer key;
     gint i = 0;
     gchar **names;
-  
+
     g_return_val_if_fail(variables != NULL, NULL);
 
     names = g_malloc0(sizeof(gchar *) * (g_hash_table_size(variables->priv->registers) + 1));
diff --git a/src/math-window.c b/src/math-window.c
index de7045f..95e749e 100644
--- a/src/math-window.c
+++ b/src/math-window.c
@@ -466,7 +466,7 @@ create_gui(MathWindow *window)
 
     vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 6);
     gtk_container_set_border_width(GTK_CONTAINER(vbox), 6);
-    gtk_box_pack_start(GTK_BOX(main_vbox), vbox, TRUE, TRUE, 0);  
+    gtk_box_pack_start(GTK_BOX(main_vbox), vbox, TRUE, TRUE, 0);
     gtk_widget_show(vbox);
 
     scrolled_window = gtk_scrolled_window_new(NULL, NULL);
diff --git a/src/mp-convert.c b/src/mp-convert.c
index 1052351..f41c874 100644
--- a/src/mp-convert.c
+++ b/src/mp-convert.c
@@ -288,7 +288,7 @@ mp_cast_to_int(const MPNumber *x)
 {
     int i;
     int64_t z = 0, v;
-  
+
     /* |x| <= 1 */
     if (x->sign == 0 || x->exponent <= 0)
         return 0;
@@ -299,7 +299,7 @@ mp_cast_to_int(const MPNumber *x)
 
         t = z;
         z = z * MP_BASE + x->fraction[i];
-      
+
         /* Check for overflow */
         if (z <= t)
             return 0;
@@ -329,7 +329,7 @@ mp_cast_to_unsigned_int(const MPNumber *x)
 {
     int i;
     uint64_t z = 0, v;
-  
+
     /* x <= 1 */
     if (x->sign <= 0 || x->exponent <= 0)
         return 0;
@@ -340,7 +340,7 @@ mp_cast_to_unsigned_int(const MPNumber *x)
 
         t = z;
         z = z * MP_BASE + x->fraction[i];
-      
+
         /* Check for overflow */
         if (z <= t)
             return 0;
diff --git a/src/mp-equation.c b/src/mp-equation.c
index 112078d..c50646e 100644
--- a/src/mp-equation.c
+++ b/src/mp-equation.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2004-2008 Sami Pietila
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
@@ -66,7 +66,7 @@ get_variable(ParserState *state, const char *name, MPNumber *z)
     else if (strcmp(name, "mₚ") == 0)
         mp_set_from_string("0.000000000000000000000000001672621898", 10, z); /* proton mass */
     else if (strcmp(name, "Nₐ") == 0)
-        mp_set_from_string("602214086000000000000000", 10, z); /* Avogrado constant */ 
+        mp_set_from_string("602214086000000000000000", 10, z); /* Avogrado constant */
     else if (state->options->get_variable)
         result = state->options->get_variable(name, z, state->options->callback_data);
     else
diff --git a/src/mp-equation.h b/src/mp-equation.h
index d6c0f24..d7eddd3 100644
--- a/src/mp-equation.h
+++ b/src/mp-equation.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2004-2008 Sami Pietila
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
@@ -41,7 +41,7 @@ typedef struct {
 
     /* Data to pass to callbacks */
     void *callback_data;
-  
+
     /* Function to check if a variable is defined */
     int (*variable_is_defined)(const char *name, void *data);
 
diff --git a/src/mp-serializer.c b/src/mp-serializer.c
index 413d844..4067016 100644
--- a/src/mp-serializer.c
+++ b/src/mp-serializer.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2010 Robin Sonefors
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
@@ -263,7 +263,7 @@ mp_cast_to_exponential_string_real(MpSerializer *serializer, const MPNumber *x,
     fixed = mp_cast_to_string(serializer, &mantissa, n_digits);
     g_string_append(string, fixed);
     g_free(fixed);
-  
+
     return exponent;
 }
 
@@ -273,7 +273,7 @@ append_exponent(GString *string, int exponent)
 {
     const gchar *super_digits[] = {"⁰", "¹", "²", "³", "⁴", "⁵", "⁶", "⁷", "⁸", "⁹"};
     gchar *super_value, *c;
-  
+
     if (exponent == 0)
         return;
 
@@ -593,7 +593,7 @@ mp_serializer_class_init(MpSerializerClass *klass)
                                     g_param_spec_int("base",
                                                      "base",
                                                      "Default number base",
-                                                     2, 16, 10, 
+                                                     2, 16, 10,
                                                      G_PARAM_READWRITE));
 }
 
diff --git a/src/mp-serializer.h b/src/mp-serializer.h
index 63e5937..edd8bc8 100644
--- a/src/mp-serializer.h
+++ b/src/mp-serializer.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2010 Robin Sonefors
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
diff --git a/src/mp-trigonometric.c b/src/mp-trigonometric.c
index 3ad60c4..72aba0c 100644
--- a/src/mp-trigonometric.c
+++ b/src/mp-trigonometric.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
@@ -419,7 +419,7 @@ mp_atan(const MPNumber *x, MPAngleUnit unit, MPNumber *z)
             break;
 
         q *= 2;
-        
+
         /* t = t / (√(t² + 1) + 1) */
         mp_multiply(&t2, &t2, z);
         mp_add_integer(z, 1, z);
diff --git a/src/mp.c b/src/mp.c
index f74f9a9..dcf4d92 100644
--- a/src/mp.c
+++ b/src/mp.c
@@ -211,8 +211,8 @@ mp_imaginary_component(const MPNumber *x, MPNumber *z)
     z->sign = x->im_sign;
     z->exponent = x->im_exponent;
     memcpy(z->fraction, x->im_fraction, sizeof(int) * MP_SIZE);
-  
-    /* Clear (old) imaginary component */   
+
+    /* Clear (old) imaginary component */
     z->im_sign = 0;
     z->im_exponent = 0;
     memset(z->im_fraction, 0, sizeof(int) * MP_SIZE);
@@ -234,7 +234,7 @@ mp_add_real(const MPNumber *x, int y_sign, const MPNumber *y, MPNumber *z)
         z->sign = y_sign;
         return;
     }
-    /* x + 0 = x */ 
+    /* x + 0 = x */
     else if (mp_is_zero(y)) {
         mp_set_from_mp(x, z);
         return;
@@ -458,7 +458,7 @@ mp_sgn(const MPNumber *x, MPNumber *z)
     else if (mp_is_negative(x))
         mp_set_from_integer(-1, z);
     else
-        mp_set_from_integer(1, z);  
+        mp_set_from_integer(1, z);
 }
 
 void
@@ -837,7 +837,7 @@ bool
 mp_is_integer(const MPNumber *x)
 {
     MPNumber t1, t2, t3;
-    
+
     if (mp_is_complex(x))
         return false;
 
@@ -1306,7 +1306,7 @@ void
 mp_logarithm(int64_t n, const MPNumber *x, MPNumber *z)
 {
     MPNumber t1, t2;
-    
+
     /* log(0) undefined */
     if (mp_is_zero(x)) {
         /* Translators: Error displayed when attempting to take logarithm of zero */
@@ -1336,7 +1336,7 @@ mp_multiply_real(const MPNumber *x, const MPNumber *y, MPNumber *z)
     int c, i, xi;
     MPNumber r;
 
-    /* x*0 = 0*y = 0 */    
+    /* x*0 = 0*y = 0 */
     if (x->sign == 0 || y->sign == 0) {
         mp_set_from_integer(0, z);
         return;
@@ -1421,7 +1421,7 @@ mp_multiply_real(const MPNumber *x, const MPNumber *y, MPNumber *z)
     /* Clear complex part */
     z->im_sign = 0;
     z->im_exponent = 0;
-    memset(z->im_fraction, 0, sizeof(int) * MP_SIZE);    
+    memset(z->im_fraction, 0, sizeof(int) * MP_SIZE);
 
     /* NORMALIZE AND ROUND RESULT */
     // FIXME: Use stack variable because of mp_normalize brokeness
@@ -1448,11 +1448,11 @@ mp_multiply(const MPNumber *x, const MPNumber *y, MPNumber *z)
         mp_imaginary_component(x, &im_x);
         mp_real_component(y, &real_y);
         mp_imaginary_component(y, &im_y);
-    
+
         mp_multiply_real(&real_x, &real_y, &t1);
         mp_multiply_real(&im_x, &im_y, &t2);
         mp_subtract(&t1, &t2, &real_z);
-    
+
         mp_multiply_real(&real_x, &im_y, &t1);
         mp_multiply_real(&im_x, &real_y, &t2);
         mp_add(&t1, &t2, &im_z);
@@ -1577,7 +1577,7 @@ mp_multiply_integer_real(const MPNumber *x, int64_t y, MPNumber *z)
 
     z->im_sign = 0;
     z->im_exponent = 0;
-    memset(z->im_fraction, 0, sizeof(int) * MP_SIZE);    
+    memset(z->im_fraction, 0, sizeof(int) * MP_SIZE);
     mp_normalize(z);
 }
 
@@ -1673,7 +1673,7 @@ mp_pwr(const MPNumber *x, const MPNumber *y, MPNumber *z)
         return;
     }*/
 
-    /* 0^y = 0, 0^-y undefined */  
+    /* 0^y = 0, 0^-y undefined */
     if (mp_is_zero(x)) {
         mp_set_from_integer(0, z);
         if (y->sign < 0)
@@ -1750,7 +1750,7 @@ mp_reciprocal_real(const MPNumber *x, MPNumber *z)
 
 void
 mp_reciprocal(const MPNumber *x, MPNumber *z)
-{    
+{
     if (mp_is_complex(x)) {
         MPNumber t1, t2;
         MPNumber real_x, im_x;
@@ -2007,7 +2007,7 @@ mp_xpowy_integer(const MPNumber *x, int64_t n, MPNumber *z)
         mp_set_from_integer(0, z);
         return;
     }
-  
+
     /* x^1 = x */
     if (n == 1) {
         mp_set_from_mp(x, z);
diff --git a/src/mp.h b/src/mp.h
index 634bb01..352dd52 100644
--- a/src/mp.h
+++ b/src/mp.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
diff --git a/src/test-mp-equation.c b/src/test-mp-equation.c
index d05cc12..ee461aa 100644
--- a/src/test-mp-equation.c
+++ b/src/test-mp-equation.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
@@ -125,25 +125,25 @@ test_conversions()
     options.wordlen = 32;
     options.angle_units = MP_DEGREES;
     options.convert = do_convert;
-  
+
     /* Angle units */
     //test("π radians in degrees", "180", 0);
     test("100 gradians in degrees", "90", 0);
 
     /* Length */
-    test("1 meter in mm", "1000", 0);  
+    test("1 meter in mm", "1000", 0);
     test("1m in mm", "1000", 0);
     test("1 inch in cm", "2.54", 0);
 
     /* Area */
     test("1m² in mm²", "1000000", 0);
-  
+
     /* Volume */
-    test("1m³ in mm³", "1000000000", 0);  
+    test("1m³ in mm³", "1000000000", 0);
 
     /* Weight */
     test("1 kg in pounds", "2.204622622", 0);
-  
+
     /* Duration */
     test("1 minute in seconds", "60", 0);
     test("1s in ms", "1000", 0);
@@ -176,7 +176,7 @@ get_variable(const char *name, MPNumber *z, void *data)
         mp_set_from_integer (3, z);
         return 1;
     }
-    return 0;  
+    return 0;
 }
 
 
@@ -191,7 +191,7 @@ test_equations()
     memset(&options, 0, sizeof(options));
     options.wordlen = 32;
     options.angle_units = MP_DEGREES;
-    options.variable_is_defined = variable_is_defined;  
+    options.variable_is_defined = variable_is_defined;
     options.get_variable = get_variable;
     options.set_variable = set_variable;
 
@@ -251,7 +251,7 @@ test_equations()
     test("١٢٣٤٥٦٧٨٩٠", "1234567890", 0);
     test("۱۲۳۴۵۶۷۸۹۰", "1234567890", 0);
 
-/*    
+/*
     //test("2A", "2000000000000000", 0);
     test("2T", "2000000000000", 0);
     test("2G", "2000000000", 0);
@@ -291,7 +291,7 @@ test_equations()
     test("2y", "6", 0);
     test("y2", "", PARSER_ERR_INVALID);
     test("y 2", "", PARSER_ERR_INVALID);
-    test("2z", "", PARSER_ERR_UNKNOWN_VARIABLE);  
+    test("2z", "", PARSER_ERR_UNKNOWN_VARIABLE);
     test("z2", "", PARSER_ERR_UNKNOWN_VARIABLE);
     test("z 2", "", PARSER_ERR_UNKNOWN_VARIABLE);
     test("z(2)", "", PARSER_ERR_UNKNOWN_VARIABLE);
@@ -445,7 +445,7 @@ test_equations()
     test("8 mod 7", "1", 0);
     test("−1 mod 7", "6", 0);
 
-    test("sgn 0", "0", 0);  
+    test("sgn 0", "0", 0);
     test("sgn 3", "1", 0);
     test("sgn −3", "−1", 0);
     test("⌊3⌋", "3", 0);
@@ -561,16 +561,16 @@ test_equations()
     test("i", "i", 0);
     test("−i", "−i", 0);
     test("2i", "2i", 0);
-    test("1+i", "1+i", 0);  
+    test("1+i", "1+i", 0);
     test("i+1", "1+i", 0);
-    test("1−i", "1−i", 0);  
+    test("1−i", "1−i", 0);
     test("i−1", "−1+i", 0);
     test("i×i", "−1", 0);
     test("i÷i", "1", 0);
     test("1÷i", "−i", 0);
     test("|i|", "1", 0);
     test("|3+4i|", "5", 0);
-    test("arg 0", "", PARSER_ERR_MP);  
+    test("arg 0", "", PARSER_ERR_MP);
     test("arg 1", "0", 0);
     test("arg (1+i)", "45", 0);
     test("arg i", "90", 0);
@@ -597,9 +597,9 @@ test_equations()
     test("1 and 1", "1", 0);
     test("3 and 5", "1", 0);
 
-    test("0 or 0", "0", 0);  
+    test("0 or 0", "0", 0);
     test("1 or 0", "1", 0);
-    test("0 or 1", "1", 0);  
+    test("0 or 1", "1", 0);
     test("1 or 1", "1", 0);
     test("3 or 5", "7", 0);
 
diff --git a/src/test-mp.c b/src/test-mp.c
index 126b2df..fa7408f 100644
--- a/src/test-mp.c
+++ b/src/test-mp.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
@@ -144,11 +144,11 @@ static void
 test_mp()
 {
     MPNumber zero, one, minus_one;
-  
+
     mp_set_from_integer(0, &zero);
     mp_set_from_integer(1, &one);
     mp_set_from_integer(-1, &minus_one);
-  
+
     try("mp_is_zero(-1)", mp_is_zero(&minus_one), false);
     try("mp_is_zero(0)", mp_is_zero(&zero), true);
     try("mp_is_zero(1)", mp_is_zero(&one), false);
@@ -183,17 +183,17 @@ test_mp()
     try("mp_is_equal(1, 0)", mp_is_equal(&one, &zero), false);
     try("mp_is_equal(1, 1)", mp_is_equal(&one, &one), true);
 
-    try("mp_is_greater_than(0, -1)", mp_is_greater_than (&zero, &minus_one), true);  
+    try("mp_is_greater_than(0, -1)", mp_is_greater_than (&zero, &minus_one), true);
     try("mp_is_greater_than(0, 0)", mp_is_greater_than (&zero, &zero), false);
     try("mp_is_greater_than(0, 1)", mp_is_greater_than (&zero, &one), false);
-    try("mp_is_greater_than(1, -1)", mp_is_greater_than (&one, &minus_one), true);  
+    try("mp_is_greater_than(1, -1)", mp_is_greater_than (&one, &minus_one), true);
     try("mp_is_greater_than(1, 0)", mp_is_greater_than (&one, &zero), true);
     try("mp_is_greater_than(1, 1)", mp_is_greater_than (&one, &one), false);
-    try("mp_is_greater_than(-1, -1)", mp_is_greater_than (&minus_one, &minus_one), false);  
+    try("mp_is_greater_than(-1, -1)", mp_is_greater_than (&minus_one, &minus_one), false);
     try("mp_is_greater_than(-1, 0)", mp_is_greater_than (&minus_one, &zero), false);
     try("mp_is_greater_than(-1, 1)", mp_is_greater_than (&minus_one, &one), false);
 
-    try("mp_is_greater_equal(0, -1)", mp_is_greater_equal (&zero, &minus_one), true);  
+    try("mp_is_greater_equal(0, -1)", mp_is_greater_equal (&zero, &minus_one), true);
     try("mp_is_greater_equal(0, 0)", mp_is_greater_equal (&zero, &zero), true);
     try("mp_is_greater_equal(0, 1)", mp_is_greater_equal (&zero, &one), false);
     try("mp_is_greater_equal(1, -1)", mp_is_greater_equal (&one, &minus_one), true);
@@ -203,23 +203,23 @@ test_mp()
     try("mp_is_greater_equal(-1, 0)", mp_is_greater_equal (&minus_one, &zero), false);
     try("mp_is_greater_equal(-1, 1)", mp_is_greater_equal (&minus_one, &one), false);
 
-    try("mp_is_less_than(0, -1)", mp_is_less_than (&zero, &minus_one), false);  
+    try("mp_is_less_than(0, -1)", mp_is_less_than (&zero, &minus_one), false);
     try("mp_is_less_than(0, 0)", mp_is_less_than (&zero, &zero), false);
     try("mp_is_less_than(0, 1)", mp_is_less_than (&zero, &one), true);
-    try("mp_is_less_than(1, -1)", mp_is_less_than (&one, &minus_one), false);  
+    try("mp_is_less_than(1, -1)", mp_is_less_than (&one, &minus_one), false);
     try("mp_is_less_than(1, 0)", mp_is_less_than (&one, &zero), false);
     try("mp_is_less_than(1, 1)", mp_is_less_than (&one, &one), false);
-    try("mp_is_less_than(-1, -1)", mp_is_less_than (&minus_one, &minus_one), false);  
+    try("mp_is_less_than(-1, -1)", mp_is_less_than (&minus_one, &minus_one), false);
     try("mp_is_less_than(-1, 0)", mp_is_less_than (&minus_one, &zero), true);
     try("mp_is_less_than(-1, 1)", mp_is_less_than (&minus_one, &one), true);
 
-    try("mp_is_less_equal(0, -1)", mp_is_less_equal (&zero, &minus_one), false);  
+    try("mp_is_less_equal(0, -1)", mp_is_less_equal (&zero, &minus_one), false);
     try("mp_is_less_equal(0, 0)", mp_is_less_equal (&zero, &zero), true);
     try("mp_is_less_equal(0, 1)", mp_is_less_equal (&zero, &one), true);
-    try("mp_is_less_equal(1, -1)", mp_is_less_equal (&one, &minus_one), false);  
+    try("mp_is_less_equal(1, -1)", mp_is_less_equal (&one, &minus_one), false);
     try("mp_is_less_equal(1, 0)", mp_is_less_equal (&one, &zero), false);
     try("mp_is_less_equal(1, 1)", mp_is_less_equal (&one, &one), true);
-    try("mp_is_less_equal(-1, -1)", mp_is_less_equal (&minus_one, &minus_one), true);  
+    try("mp_is_less_equal(-1, -1)", mp_is_less_equal (&minus_one, &minus_one), true);
     try("mp_is_less_equal(-1, 0)", mp_is_less_equal (&minus_one, &zero), true);
     try("mp_is_less_equal(-1, 1)", mp_is_less_equal (&minus_one, &one), true);
 }
diff --git a/src/unit-category.c b/src/unit-category.c
index 875ea58..b8fa303 100644
--- a/src/unit-category.c
+++ b/src/unit-category.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
@@ -72,7 +72,7 @@ unit_category_get_unit_by_name(UnitCategory *category, const gchar *name)
         if (strcmp(unit_get_name(unit), name) == 0)
             return unit;
     }
-  
+
     return NULL;
 }
 
diff --git a/src/unit-category.h b/src/unit-category.h
index fc2c739..c5e699c 100644
--- a/src/unit-category.h
+++ b/src/unit-category.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
diff --git a/src/unit-manager.c b/src/unit-manager.c
index cf1e441..01f3c16 100644
--- a/src/unit-manager.c
+++ b/src/unit-manager.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
@@ -175,7 +175,7 @@ UnitCategory *
 unit_manager_get_category(UnitManager *manager, const gchar *category)
 {
     GList *iter;
-  
+
     g_return_val_if_fail(manager != NULL, NULL);
     g_return_val_if_fail(category != NULL, NULL);
 
@@ -205,7 +205,7 @@ unit_manager_get_unit_by_name(UnitManager *manager, const gchar *name)
             return u;
     }
 
-    return NULL; 
+    return NULL;
 }
 
 
@@ -216,7 +216,7 @@ unit_manager_get_unit_by_symbol(UnitManager *manager, const gchar *symbol)
     Unit *u;
 
     g_return_val_if_fail(manager != NULL, NULL);
-    g_return_val_if_fail(symbol != NULL, NULL);  
+    g_return_val_if_fail(symbol != NULL, NULL);
 
     for (iter = manager->priv->categories; iter; iter = iter->next) {
         UnitCategory *c = iter->data;
@@ -225,7 +225,7 @@ unit_manager_get_unit_by_symbol(UnitManager *manager, const gchar *symbol)
             return u;
     }
 
-    return NULL; 
+    return NULL;
 }
 
 
@@ -249,7 +249,7 @@ unit_manager_convert_by_symbol(UnitManager *manager, const MPNumber *x, const ch
         if (x_units && z_units && unit_category_convert(c, x, x_units, z_units, z))
             return TRUE;
     }
-  
+
     return FALSE;
 }
 
diff --git a/src/unit-manager.h b/src/unit-manager.h
index db1b4f2..dbedfd3 100644
--- a/src/unit-manager.h
+++ b/src/unit-manager.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
diff --git a/src/unit.c b/src/unit.c
index f1a3db3..8f33a10 100644
--- a/src/unit.c
+++ b/src/unit.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later
diff --git a/src/unit.h b/src/unit.h
index 3c9087f..2f4a3bf 100644
--- a/src/unit.h
+++ b/src/unit.h
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 1987-2008 Sun Microsystems, Inc. All Rights Reserved.
  * Copyright (C) 2008-2011 Robert Ancell.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify it under
  * the terms of the GNU General Public License as published by the Free Software
  * Foundation, either version 2 of the License, or (at your option) any later