X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fdata%2Fvariable.c;h=44f8a4fe40d3b697869097fa461444076f1045a4;hb=e2f99612bf4f4691623f16730eed3e55afdc54f0;hp=c4bab00fc36081b15aa368ec5b57dc89b7088dfe;hpb=e2da62d735c597afeef2e0e9b36e5a4a83d7da94;p=pspp

diff --git a/src/data/variable.c b/src/data/variable.c
index c4bab00fc3..44f8a4fe40 100644
--- a/src/data/variable.c
+++ b/src/data/variable.c
@@ -1,5 +1,5 @@
 /* PSPP - a program for statistical analysis.
-   Copyright (C) 1997-9, 2000, 2006, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+   Copyright (C) 1997-9, 2000, 2006, 2009, 2010, 2011, 2012, 2013, 2014, 2016 Free Software Foundation, Inc.
 
    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
@@ -42,6 +42,42 @@
 
 #include "gettext.h"
 #define _(msgid) gettext (msgid)
+#define N_(msgid) (msgid)
+
+/* This should follow the definition in Gtk */
+typedef struct
+{
+  int value;
+  const char *name;
+  const char *label;
+} GEnumValue;
+
+const GEnumValue align[] =
+  {
+    {ALIGN_LEFT,   "left", N_("Left")},
+    {ALIGN_RIGHT,  "right", N_("Right")},
+    {ALIGN_CENTRE, "center", N_("Center")},
+    {0,0,0}
+  };
+
+const GEnumValue measure[] =
+  {
+    {MEASURE_NOMINAL, "nominal", N_("Nominal")},
+    {MEASURE_ORDINAL, "ordinal", N_("Ordinal")},
+    {MEASURE_SCALE,   "scale", N_("Scale")},
+    {0,0,0}
+  };
+
+const GEnumValue role[] =
+  {
+    {ROLE_INPUT,  "input",    N_("Input")},
+    {ROLE_TARGET, "output",   N_("Output")},
+    {ROLE_BOTH,   "both",     N_("Both")},
+    {ROLE_NONE,   "none",     N_("None")},
+    {ROLE_PARTITION, "partition", N_("Partition")},
+    {ROLE_SPLIT,  "split",    N_("Split")},
+    {0,0,0}
+  };
 
 /* A variable. */
 struct variable
@@ -80,7 +116,7 @@ struct variable
 
 static void var_set_print_format_quiet (struct variable *v, const struct fmt_spec *print);
 static void var_set_write_format_quiet (struct variable *v, const struct fmt_spec *write);
-static bool var_set_label_quiet (struct variable *v, const char *label, bool issue_warning);
+static void var_set_label_quiet (struct variable *v, const char *label);
 static void var_set_name_quiet (struct variable *v, const char *name);
 
 /* Creates and returns a new variable with the given NAME and
@@ -124,7 +160,7 @@ var_destroy (struct variable *v)
       mv_destroy (&v->miss);
       var_clear_short_names (v);
       val_labs_destroy (v->val_labs);
-      var_set_label_quiet (v, NULL, false);
+      var_set_label_quiet (v, NULL);
       attrset_destroy (var_get_attributes (v));
       free (v->name);
       ds_destroy (&v->name_and_label);
@@ -150,7 +186,6 @@ static void
 var_set_name_quiet (struct variable *v, const char *name)
 {
   assert (!var_has_vardict (v));
-  assert (id_is_plausible (name, false));
 
   free (v->name);
   v->name = xstrdup (name);
@@ -461,7 +496,7 @@ var_set_value_labels (struct variable *v, const struct val_labs *vls)
 {
   struct variable *ov = var_clone (v);
   var_set_value_labels_quiet (v, vls);
-  dict_var_changed (v, VAR_TRAIT_LABEL, ov);  
+  dict_var_changed (v, VAR_TRAIT_LABEL, ov);
 }
 
 
@@ -544,7 +579,7 @@ var_append_value_name (const struct variable *v, const union value *value,
     case SETTINGS_VAL_STYLE_VALUES:
       append_value (v, value, str);
       break;
-      
+
     case SETTINGS_VAL_STYLE_LABELS:
       if (name == NULL)
 	append_value (v, value, str);
@@ -715,49 +750,18 @@ var_get_label (const struct variable *v)
 /* Sets V's variable label to UTF-8 encoded string LABEL, stripping off leading
    and trailing white space.  If LABEL is a null pointer or if LABEL is an
    empty string (after stripping white space), then V's variable label (if any)
-   is removed.
-
-   Variable labels are limited to 255 bytes in V's encoding (as returned by
-   var_get_encoding()).  If LABEL fits within this limit, this function returns
-   true.  Otherwise, the variable label is set to a truncated value, this
-   function returns false and, if ISSUE_WARNING is true, issues a warning.  */
-static bool
-var_set_label_quiet (struct variable *v, const char *label, bool issue_warning)
+   is removed. */
+static void
+var_set_label_quiet (struct variable *v, const char *label)
 {
-  bool truncated = false;
-
   free (v->label);
   v->label = NULL;
 
   if (label != NULL && label[strspn (label, CC_SPACES)])
-    {
-      const char *dict_encoding = var_get_encoding (v);
-      struct substring s = ss_cstr (label);
-      size_t trunc_len;
-
-      if (dict_encoding != NULL)
-        {
-          enum { MAX_LABEL_LEN = 255 };
-
-          trunc_len = utf8_encoding_trunc_len (label, dict_encoding,
-                                               MAX_LABEL_LEN);
-          if (ss_length (s) > trunc_len)
-            {
-              if (issue_warning)
-                msg (SW, _("Truncating variable label for variable `%s' to %d "
-                           "bytes."), var_get_name (v), MAX_LABEL_LEN);
-              ss_truncate (&s, trunc_len);
-              truncated = true;
-            }
-        }
-
-        v->label = ss_xstrdup (s);
-    }
+    v->label = xstrdup (label);
 
   ds_destroy (&v->name_and_label);
   ds_init_empty (&v->name_and_label);
-
-  return truncated;
 }
 
 
@@ -765,21 +769,13 @@ var_set_label_quiet (struct variable *v, const char *label, bool issue_warning)
 /* Sets V's variable label to UTF-8 encoded string LABEL, stripping off leading
    and trailing white space.  If LABEL is a null pointer or if LABEL is an
    empty string (after stripping white space), then V's variable label (if any)
-   is removed.
-
-   Variable labels are limited to 255 bytes in V's encoding (as returned by
-   var_get_encoding()).  If LABEL fits within this limit, this function returns
-   true.  Otherwise, the variable label is set to a truncated value, this
-   function returns false and, if ISSUE_WARNING is true, issues a warning.  */
-bool
-var_set_label (struct variable *v, const char *label, bool issue_warning)
+   is removed. */
+void
+var_set_label (struct variable *v, const char *label)
 {
   struct variable *ov = var_clone (v);
-  bool truncated = var_set_label_quiet (v, label, issue_warning);
-
+  var_set_label_quiet (v, label);
   dict_var_changed (v, VAR_TRAIT_LABEL, ov);
-
-  return truncated;
 }
 
 
@@ -787,7 +783,7 @@ var_set_label (struct variable *v, const char *label, bool issue_warning)
 void
 var_clear_label (struct variable *v)
 {
-  var_set_label (v, NULL, false);
+  var_set_label (v, NULL);
 }
 
 /* Returns true if V has a variable V,
@@ -810,20 +806,8 @@ measure_is_valid (enum measure m)
 const char *
 measure_to_string (enum measure m)
 {
-  switch (m)
-    {
-    case MEASURE_NOMINAL:
-      return _("Nominal");
-
-    case MEASURE_ORDINAL:
-      return _("Ordinal");
-
-    case MEASURE_SCALE:
-      return _("Scale");
-
-    default:
-      return "Invalid";
-    }
+  assert (m == measure[m].value);
+  return gettext (measure[m].label);
 }
 
 /* Returns a string version of measurement level M, for use in PSPP command
@@ -905,31 +889,10 @@ var_role_is_valid (enum var_role role)
 
 /* Returns a string version of ROLE, for display to a user. */
 const char *
-var_role_to_string (enum var_role role)
+var_role_to_string (enum var_role r)
 {
-  switch (role)
-    {
-    case ROLE_INPUT:
-      return _("Input");
-
-    case ROLE_TARGET:
-      return _("Output");
-
-    case ROLE_BOTH:
-      return _("Both");
-
-    case ROLE_NONE:
-      return _("None");
-
-    case ROLE_PARTITION:
-      return _("Partition");
-
-    case ROLE_SPLIT:
-      return _("Split");
-
-    default:
-      return "Invalid";
-    }
+  assert (r == role[r].value);
+  return gettext (role[r].label);
 }
 
 /* Returns a string version of ROLE, for use in PSPP comamnd syntax. */
@@ -1006,12 +969,14 @@ var_set_display_width_quiet (struct variable *v, int new_width)
 void
 var_set_display_width (struct variable *v, int new_width)
 {
-  struct variable *ov = var_clone (v);
-  var_set_display_width_quiet (v, new_width);
-  dict_var_changed (v, VAR_TRAIT_DISPLAY_WIDTH, ov);
+  if (v->display_width != new_width)
+    {
+      struct variable *ov = var_clone (v);
+      var_set_display_width_quiet (v, new_width);
+      dict_var_changed (v, VAR_TRAIT_DISPLAY_WIDTH, ov);
+    }
 }
 
-
 /* Returns the default display width for a variable of the given
    WIDTH, as set by var_create.  The return value can be used to
    reset a variable's display width to the default. */
@@ -1033,20 +998,8 @@ alignment_is_valid (enum alignment a)
 const char *
 alignment_to_string (enum alignment a)
 {
-  switch (a)
-    {
-    case ALIGN_LEFT:
-      return _("Left");
-
-    case ALIGN_RIGHT:
-      return _("Right");
-
-    case ALIGN_CENTRE:
-      return _("Center");
-
-    default:
-      return "Invalid";
-    }
+  assert (a == align[a].value);
+  return gettext (align[a].label);
 }
 
 /* Returns a string version of alignment A, for use in PSPP command syntax. */
@@ -1152,7 +1105,7 @@ var_must_leave (const struct variable *v)
    all if it hasn't been saved to or read from a system or
    portable file. */
 size_t
-var_get_short_name_cnt (const struct variable *var) 
+var_get_short_name_cnt (const struct variable *var)
 {
   return var->short_name_cnt;
 }
@@ -1178,17 +1131,15 @@ var_set_short_name (struct variable *var, size_t idx, const char *short_name)
 {
   struct variable *ov = var_clone (var);
 
-  assert (short_name == NULL || id_is_plausible (short_name, false));
-
   /* Clear old short name numbered IDX, if any. */
-  if (idx < var->short_name_cnt) 
+  if (idx < var->short_name_cnt)
     {
       free (var->short_names[idx]);
-      var->short_names[idx] = NULL; 
+      var->short_names[idx] = NULL;
     }
 
   /* Install new short name for IDX. */
-  if (short_name != NULL) 
+  if (short_name != NULL)
     {
       if (idx >= var->short_name_cnt)
         {
@@ -1247,14 +1198,14 @@ var_get_case_index (const struct variable *v)
    V, or calling var_set_attributes() on V, will also destroy its
    attribute set. */
 struct attrset *
-var_get_attributes (const struct variable *v) 
+var_get_attributes (const struct variable *v)
 {
   return CONST_CAST (struct attrset *, &v->attributes);
 }
 
 /* Replaces variable V's attributes set by a copy of ATTRS. */
 static void
-var_set_attributes_quiet (struct variable *v, const struct attrset *attrs) 
+var_set_attributes_quiet (struct variable *v, const struct attrset *attrs)
 {
   attrset_destroy (&v->attributes);
   attrset_clone (&v->attributes, attrs);
@@ -1262,7 +1213,7 @@ var_set_attributes_quiet (struct variable *v, const struct attrset *attrs)
 
 /* Replaces variable V's attributes set by a copy of ATTRS. */
 void
-var_set_attributes (struct variable *v, const struct attrset *attrs) 
+var_set_attributes (struct variable *v, const struct attrset *attrs)
 {
   struct variable *ov = var_clone (v);
   var_set_attributes_quiet (v, attrs);
@@ -1298,7 +1249,7 @@ var_clone (const struct variable *old_var)
   var_set_print_format_quiet (new_var, var_get_print_format (old_var));
   var_set_write_format_quiet (new_var, var_get_write_format (old_var));
   var_set_value_labels_quiet (new_var, var_get_value_labels (old_var));
-  var_set_label_quiet (new_var, var_get_label (old_var), false);
+  var_set_label_quiet (new_var, var_get_label (old_var));
   var_set_measure_quiet (new_var, var_get_measure (old_var));
   var_set_role_quiet (new_var, var_get_role (old_var));
   var_set_display_width_quiet (new_var, var_get_display_width (old_var));
@@ -1349,3 +1300,29 @@ var_clear_vardict (struct variable *v)
 {
   v->vardict = NULL;
 }
+
+
+/*
+  Returns zero, if W is a missing value for WV or if it is less than zero.
+  Typically used to force a numerical value into a valid weight.
+
+  As a side effect, this function will emit a warning if the value
+  WARN_ON_INVALID points to a bool which is TRUE.  That bool will be then
+  set to FALSE.
+ */
+double
+var_force_valid_weight (const struct variable *wv, double w, bool *warn_on_invalid)
+{
+  if (w < 0.0 || (wv && var_is_num_missing (wv, w, MV_ANY)))
+    w = 0.0;
+
+  if (w == 0.0 && warn_on_invalid != NULL && *warn_on_invalid)
+    {
+      *warn_on_invalid = false;
+      msg (SW, _("At least one case in the data file had a weight value "
+		 "that was user-missing, system-missing, zero, or "
+		 "negative.  These case(s) were ignored."));
+    }
+
+  return w;
+}