7 #include "sass/values.h"
8 #include "sass_values.hpp"
13 // Return the sass tag for a generic sass value
14 enum Sass_Tag ADDCALL sass_value_get_tag(const union Sass_Value* v) { return v->unknown.tag; }
16 // Check value for specified type
17 bool ADDCALL sass_value_is_null(const union Sass_Value* v) { return v->unknown.tag == SASS_NULL; }
18 bool ADDCALL sass_value_is_number(const union Sass_Value* v) { return v->unknown.tag == SASS_NUMBER; }
19 bool ADDCALL sass_value_is_string(const union Sass_Value* v) { return v->unknown.tag == SASS_STRING; }
20 bool ADDCALL sass_value_is_boolean(const union Sass_Value* v) { return v->unknown.tag == SASS_BOOLEAN; }
21 bool ADDCALL sass_value_is_color(const union Sass_Value* v) { return v->unknown.tag == SASS_COLOR; }
22 bool ADDCALL sass_value_is_list(const union Sass_Value* v) { return v->unknown.tag == SASS_LIST; }
23 bool ADDCALL sass_value_is_map(const union Sass_Value* v) { return v->unknown.tag == SASS_MAP; }
24 bool ADDCALL sass_value_is_error(const union Sass_Value* v) { return v->unknown.tag == SASS_ERROR; }
25 bool ADDCALL sass_value_is_warning(const union Sass_Value* v) { return v->unknown.tag == SASS_WARNING; }
27 // Getters and setters for Sass_Number
28 double ADDCALL sass_number_get_value(const union Sass_Value* v) { return v->number.value; }
29 void ADDCALL sass_number_set_value(union Sass_Value* v, double value) { v->number.value = value; }
30 const char* ADDCALL sass_number_get_unit(const union Sass_Value* v) { return v->number.unit; }
31 void ADDCALL sass_number_set_unit(union Sass_Value* v, char* unit) { v->number.unit = unit; }
33 // Getters and setters for Sass_String
34 const char* ADDCALL sass_string_get_value(const union Sass_Value* v) { return v->string.value; }
35 void ADDCALL sass_string_set_value(union Sass_Value* v, char* value) { v->string.value = value; }
36 bool ADDCALL sass_string_is_quoted(const union Sass_Value* v) { return v->string.quoted; }
37 void ADDCALL sass_string_set_quoted(union Sass_Value* v, bool quoted) { v->string.quoted = quoted; }
39 // Getters and setters for Sass_Boolean
40 bool ADDCALL sass_boolean_get_value(const union Sass_Value* v) { return v->boolean.value; }
41 void ADDCALL sass_boolean_set_value(union Sass_Value* v, bool value) { v->boolean.value = value; }
43 // Getters and setters for Sass_Color
44 double ADDCALL sass_color_get_r(const union Sass_Value* v) { return v->color.r; }
45 void ADDCALL sass_color_set_r(union Sass_Value* v, double r) { v->color.r = r; }
46 double ADDCALL sass_color_get_g(const union Sass_Value* v) { return v->color.g; }
47 void ADDCALL sass_color_set_g(union Sass_Value* v, double g) { v->color.g = g; }
48 double ADDCALL sass_color_get_b(const union Sass_Value* v) { return v->color.b; }
49 void ADDCALL sass_color_set_b(union Sass_Value* v, double b) { v->color.b = b; }
50 double ADDCALL sass_color_get_a(const union Sass_Value* v) { return v->color.a; }
51 void ADDCALL sass_color_set_a(union Sass_Value* v, double a) { v->color.a = a; }
53 // Getters and setters for Sass_List
54 size_t ADDCALL sass_list_get_length(const union Sass_Value* v) { return v->list.length; }
55 enum Sass_Separator ADDCALL sass_list_get_separator(const union Sass_Value* v) { return v->list.separator; }
56 void ADDCALL sass_list_set_separator(union Sass_Value* v, enum Sass_Separator separator) { v->list.separator = separator; }
57 bool ADDCALL sass_list_get_is_bracketed(const union Sass_Value* v) { return v->list.is_bracketed; }
58 void ADDCALL sass_list_set_is_bracketed(union Sass_Value* v, bool is_bracketed) { v->list.is_bracketed = is_bracketed; }
59 // Getters and setters for Sass_List values
60 union Sass_Value* ADDCALL sass_list_get_value(const union Sass_Value* v, size_t i) { return v->list.values[i]; }
61 void ADDCALL sass_list_set_value(union Sass_Value* v, size_t i, union Sass_Value* value) { v->list.values[i] = value; }
63 // Getters and setters for Sass_Map
64 size_t ADDCALL sass_map_get_length(const union Sass_Value* v) { return v->map.length; }
65 // Getters and setters for Sass_List keys and values
66 union Sass_Value* ADDCALL sass_map_get_key(const union Sass_Value* v, size_t i) { return v->map.pairs[i].key; }
67 union Sass_Value* ADDCALL sass_map_get_value(const union Sass_Value* v, size_t i) { return v->map.pairs[i].value; }
68 void ADDCALL sass_map_set_key(union Sass_Value* v, size_t i, union Sass_Value* key) { v->map.pairs[i].key = key; }
69 void ADDCALL sass_map_set_value(union Sass_Value* v, size_t i, union Sass_Value* val) { v->map.pairs[i].value = val; }
71 // Getters and setters for Sass_Error
72 char* ADDCALL sass_error_get_message(const union Sass_Value* v) { return v->error.message; };
73 void ADDCALL sass_error_set_message(union Sass_Value* v, char* msg) { v->error.message = msg; };
75 // Getters and setters for Sass_Warning
76 char* ADDCALL sass_warning_get_message(const union Sass_Value* v) { return v->warning.message; };
77 void ADDCALL sass_warning_set_message(union Sass_Value* v, char* msg) { v->warning.message = msg; };
79 // Creator functions for all value types
81 union Sass_Value* ADDCALL sass_make_boolean(bool val)
83 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
85 v->boolean.tag = SASS_BOOLEAN;
86 v->boolean.value = val;
90 union Sass_Value* ADDCALL sass_make_number(double val, const char* unit)
92 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
94 v->number.tag = SASS_NUMBER;
95 v->number.value = val;
96 v->number.unit = unit ? sass_copy_c_string(unit) : 0;
97 if (v->number.unit == 0) { free(v); return 0; }
101 union Sass_Value* ADDCALL sass_make_color(double r, double g, double b, double a)
103 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
104 if (v == 0) return 0;
105 v->color.tag = SASS_COLOR;
113 union Sass_Value* ADDCALL sass_make_string(const char* val)
115 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
116 if (v == 0) return 0;
117 v->string.quoted = false;
118 v->string.tag = SASS_STRING;
119 v->string.value = val ? sass_copy_c_string(val) : 0;
120 if (v->string.value == 0) { free(v); return 0; }
124 union Sass_Value* ADDCALL sass_make_qstring(const char* val)
126 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
127 if (v == 0) return 0;
128 v->string.quoted = true;
129 v->string.tag = SASS_STRING;
130 v->string.value = val ? sass_copy_c_string(val) : 0;
131 if (v->string.value == 0) { free(v); return 0; }
135 union Sass_Value* ADDCALL sass_make_list(size_t len, enum Sass_Separator sep, bool is_bracketed)
137 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
138 if (v == 0) return 0;
139 v->list.tag = SASS_LIST;
140 v->list.length = len;
141 v->list.separator = sep;
142 v->list.is_bracketed = is_bracketed;
143 v->list.values = (union Sass_Value**) calloc(len, sizeof(union Sass_Value*));
144 if (v->list.values == 0) { free(v); return 0; }
148 union Sass_Value* ADDCALL sass_make_map(size_t len)
150 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
151 if (v == 0) return 0;
152 v->map.tag = SASS_MAP;
154 v->map.pairs = (struct Sass_MapPair*) calloc(len, sizeof(struct Sass_MapPair));
155 if (v->map.pairs == 0) { free(v); return 0; }
159 union Sass_Value* ADDCALL sass_make_null(void)
161 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
162 if (v == 0) return 0;
163 v->null.tag = SASS_NULL;
167 union Sass_Value* ADDCALL sass_make_error(const char* msg)
169 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
170 if (v == 0) return 0;
171 v->error.tag = SASS_ERROR;
172 v->error.message = msg ? sass_copy_c_string(msg) : 0;
173 if (v->error.message == 0) { free(v); return 0; }
177 union Sass_Value* ADDCALL sass_make_warning(const char* msg)
179 union Sass_Value* v = (Sass_Value*) calloc(1, sizeof(Sass_Value));
180 if (v == 0) return 0;
181 v->warning.tag = SASS_WARNING;
182 v->warning.message = msg ? sass_copy_c_string(msg) : 0;
183 if (v->warning.message == 0) { free(v); return 0; }
187 // will free all associated sass values
188 void ADDCALL sass_delete_value(union Sass_Value* val) {
191 if (val == 0) return;
192 switch(val->unknown.tag) {
198 free(val->number.unit);
203 free(val->string.value);
206 for (i=0; i<val->list.length; i++) {
207 sass_delete_value(val->list.values[i]);
209 free(val->list.values);
212 for (i=0; i<val->map.length; i++) {
213 sass_delete_value(val->map.pairs[i].key);
214 sass_delete_value(val->map.pairs[i].value);
216 free(val->map.pairs);
219 free(val->error.message);
222 free(val->error.message);
230 // Make a deep cloned copy of the given sass value
231 union Sass_Value* ADDCALL sass_clone_value (const union Sass_Value* val)
235 if (val == 0) return 0;
236 switch(val->unknown.tag) {
238 return sass_make_null();
241 return sass_make_boolean(val->boolean.value);
244 return sass_make_number(val->number.value, val->number.unit);
247 return sass_make_color(val->color.r, val->color.g, val->color.b, val->color.a);
250 return sass_string_is_quoted(val) ? sass_make_qstring(val->string.value) : sass_make_string(val->string.value);
253 union Sass_Value* list = sass_make_list(val->list.length, val->list.separator, val->list.is_bracketed);
254 for (i = 0; i < list->list.length; i++) {
255 list->list.values[i] = sass_clone_value(val->list.values[i]);
260 union Sass_Value* map = sass_make_map(val->map.length);
261 for (i = 0; i < val->map.length; i++) {
262 map->map.pairs[i].key = sass_clone_value(val->map.pairs[i].key);
263 map->map.pairs[i].value = sass_clone_value(val->map.pairs[i].value);
268 return sass_make_error(val->error.message);
271 return sass_make_warning(val->warning.message);
279 union Sass_Value* ADDCALL sass_value_stringify (const union Sass_Value* v, bool compressed, int precision)
281 Value_Obj val = sass_value_to_ast_node(v);
282 Sass_Inspect_Options options(compressed ? COMPRESSED : NESTED, precision);
283 std::string str(val->to_string(options));
284 return sass_make_qstring(str.c_str());
287 union Sass_Value* ADDCALL sass_value_op (enum Sass_OP op, const union Sass_Value* a, const union Sass_Value* b)
290 Sass::Value_Ptr rv = 0;
294 Value_Obj lhs = sass_value_to_ast_node(a);
295 Value_Obj rhs = sass_value_to_ast_node(b);
296 struct Sass_Inspect_Options options(NESTED, 5);
298 // see if it's a relational expression
300 case Sass_OP::EQ: return sass_make_boolean(Eval::eq(lhs, rhs));
301 case Sass_OP::NEQ: return sass_make_boolean(!Eval::eq(lhs, rhs));
302 case Sass_OP::GT: return sass_make_boolean(!Eval::lt(lhs, rhs, "gt") && !Eval::eq(lhs, rhs));
303 case Sass_OP::GTE: return sass_make_boolean(!Eval::lt(lhs, rhs, "gte"));
304 case Sass_OP::LT: return sass_make_boolean(Eval::lt(lhs, rhs, "lt"));
305 case Sass_OP::LTE: return sass_make_boolean(Eval::lt(lhs, rhs, "lte") || Eval::eq(lhs, rhs));
306 case Sass_OP::AND: return ast_node_to_sass_value(lhs->is_false() ? lhs : rhs);
307 case Sass_OP::OR: return ast_node_to_sass_value(lhs->is_false() ? rhs : lhs);
311 if (sass_value_is_number(a) && sass_value_is_number(b)) {
312 Number_Ptr_Const l_n = Cast<Number>(lhs);
313 Number_Ptr_Const r_n = Cast<Number>(rhs);
314 rv = Eval::op_numbers(op, *l_n, *r_n, options);
316 else if (sass_value_is_number(a) && sass_value_is_color(a)) {
317 Number_Ptr_Const l_n = Cast<Number>(lhs);
318 Color_Ptr_Const r_c = Cast<Color>(rhs);
319 rv = Eval::op_number_color(op, *l_n, *r_c, options);
321 else if (sass_value_is_color(a) && sass_value_is_number(b)) {
322 Color_Ptr_Const l_c = Cast<Color>(lhs);
323 Number_Ptr_Const r_n = Cast<Number>(rhs);
324 rv = Eval::op_color_number(op, *l_c, *r_n, options);
326 else if (sass_value_is_color(a) && sass_value_is_color(b)) {
327 Color_Ptr_Const l_c = Cast<Color>(lhs);
328 Color_Ptr_Const r_c = Cast<Color>(rhs);
329 rv = Eval::op_colors(op, *l_c, *r_c, options);
331 else /* convert other stuff to string and apply operation */ {
332 Value_Ptr l_v = Cast<Value>(lhs);
333 Value_Ptr r_v = Cast<Value>(rhs);
334 rv = Eval::op_strings(op, *l_v, *r_v, options);
337 // ToDo: maybe we should should return null value?
338 if (!rv) return sass_make_error("invalid return value");
340 // convert result back to ast node
341 return ast_node_to_sass_value(rv);
345 // simply pass the error message back to the caller for now
346 catch (Exception::InvalidSass& e) { return sass_make_error(e.what()); }
347 catch (std::bad_alloc&) { return sass_make_error("memory exhausted"); }
348 catch (std::exception& e) { return sass_make_error(e.what()); }
349 catch (std::string& e) { return sass_make_error(e.c_str()); }
350 catch (const char* e) { return sass_make_error(e); }
351 catch (...) { return sass_make_error("unknown"); }