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#ifndef SASS_C_VALUES_H
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#define SASS_C_VALUES_H
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#include <stddef.h>
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#include <stdbool.h>
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#include <sass/base.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Forward declaration
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union Sass_Value;
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// Type for Sass values
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enum Sass_Tag {
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SASS_BOOLEAN,
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SASS_NUMBER,
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SASS_COLOR,
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SASS_STRING,
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SASS_LIST,
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SASS_MAP,
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SASS_NULL,
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SASS_ERROR,
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SASS_WARNING
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};
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// Tags for denoting Sass list separators
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enum Sass_Separator {
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SASS_COMMA,
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SASS_SPACE,
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// only used internally to represent a hash map before evaluation
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// otherwise we would be too early to check for duplicate keys
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SASS_HASH
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};
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// Value Operators
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enum Sass_OP {
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AND, OR, // logical connectives
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EQ, NEQ, GT, GTE, LT, LTE, // arithmetic relations
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ADD, SUB, MUL, DIV, MOD, // arithmetic functions
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NUM_OPS // so we know how big to make the op table
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};
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// Creator functions for all value types
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ADDAPI union Sass_Value* ADDCALL sass_make_null (void);
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ADDAPI union Sass_Value* ADDCALL sass_make_boolean (bool val);
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ADDAPI union Sass_Value* ADDCALL sass_make_string (const char* val);
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ADDAPI union Sass_Value* ADDCALL sass_make_qstring (const char* val);
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ADDAPI union Sass_Value* ADDCALL sass_make_number (double val, const char* unit);
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ADDAPI union Sass_Value* ADDCALL sass_make_color (double r, double g, double b, double a);
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ADDAPI union Sass_Value* ADDCALL sass_make_list (size_t len, enum Sass_Separator sep);
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ADDAPI union Sass_Value* ADDCALL sass_make_map (size_t len);
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ADDAPI union Sass_Value* ADDCALL sass_make_error (const char* msg);
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ADDAPI union Sass_Value* ADDCALL sass_make_warning (const char* msg);
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// Generic destructor function for all types
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// Will release memory of all associated Sass_Values
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// Means we will delete recursively for lists and maps
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ADDAPI void ADDCALL sass_delete_value (union Sass_Value* val);
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// Make a deep cloned copy of the given sass value
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ADDAPI union Sass_Value* ADDCALL sass_clone_value (const union Sass_Value* val);
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// Execute an operation for two Sass_Values and return the result as a Sass_Value too
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ADDAPI union Sass_Value* ADDCALL sass_value_op (enum Sass_OP op, const union Sass_Value* a, const union Sass_Value* b);
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// Stringify a Sass_Values and also return the result as a Sass_Value (of type STRING)
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ADDAPI union Sass_Value* ADDCALL sass_value_stringify (const union Sass_Value* a, bool compressed, int precision);
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// Return the sass tag for a generic sass value
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// Check is needed before accessing specific values!
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ADDAPI enum Sass_Tag ADDCALL sass_value_get_tag (const union Sass_Value* v);
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// Check value to be of a specific type
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// Can also be used before accessing properties!
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ADDAPI bool ADDCALL sass_value_is_null (const union Sass_Value* v);
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ADDAPI bool ADDCALL sass_value_is_number (const union Sass_Value* v);
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ADDAPI bool ADDCALL sass_value_is_string (const union Sass_Value* v);
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ADDAPI bool ADDCALL sass_value_is_boolean (const union Sass_Value* v);
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ADDAPI bool ADDCALL sass_value_is_color (const union Sass_Value* v);
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ADDAPI bool ADDCALL sass_value_is_list (const union Sass_Value* v);
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ADDAPI bool ADDCALL sass_value_is_map (const union Sass_Value* v);
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ADDAPI bool ADDCALL sass_value_is_error (const union Sass_Value* v);
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ADDAPI bool ADDCALL sass_value_is_warning (const union Sass_Value* v);
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// Getters and setters for Sass_Number
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ADDAPI double ADDCALL sass_number_get_value (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_number_set_value (union Sass_Value* v, double value);
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ADDAPI const char* ADDCALL sass_number_get_unit (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_number_set_unit (union Sass_Value* v, char* unit);
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// Getters and setters for Sass_String
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ADDAPI const char* ADDCALL sass_string_get_value (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_string_set_value (union Sass_Value* v, char* value);
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ADDAPI bool ADDCALL sass_string_is_quoted(const union Sass_Value* v);
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ADDAPI void ADDCALL sass_string_set_quoted(union Sass_Value* v, bool quoted);
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// Getters and setters for Sass_Boolean
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ADDAPI bool ADDCALL sass_boolean_get_value (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_boolean_set_value (union Sass_Value* v, bool value);
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// Getters and setters for Sass_Color
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ADDAPI double ADDCALL sass_color_get_r (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_color_set_r (union Sass_Value* v, double r);
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ADDAPI double ADDCALL sass_color_get_g (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_color_set_g (union Sass_Value* v, double g);
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ADDAPI double ADDCALL sass_color_get_b (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_color_set_b (union Sass_Value* v, double b);
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ADDAPI double ADDCALL sass_color_get_a (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_color_set_a (union Sass_Value* v, double a);
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// Getter for the number of items in list
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ADDAPI size_t ADDCALL sass_list_get_length (const union Sass_Value* v);
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// Getters and setters for Sass_List
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ADDAPI enum Sass_Separator ADDCALL sass_list_get_separator (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_list_set_separator (union Sass_Value* v, enum Sass_Separator value);
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// Getters and setters for Sass_List values
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ADDAPI union Sass_Value* ADDCALL sass_list_get_value (const union Sass_Value* v, size_t i);
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ADDAPI void ADDCALL sass_list_set_value (union Sass_Value* v, size_t i, union Sass_Value* value);
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// Getter for the number of items in map
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ADDAPI size_t ADDCALL sass_map_get_length (const union Sass_Value* v);
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// Getters and setters for Sass_Map keys and values
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ADDAPI union Sass_Value* ADDCALL sass_map_get_key (const union Sass_Value* v, size_t i);
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ADDAPI void ADDCALL sass_map_set_key (union Sass_Value* v, size_t i, union Sass_Value*);
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ADDAPI union Sass_Value* ADDCALL sass_map_get_value (const union Sass_Value* v, size_t i);
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ADDAPI void ADDCALL sass_map_set_value (union Sass_Value* v, size_t i, union Sass_Value*);
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// Getters and setters for Sass_Error
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ADDAPI char* ADDCALL sass_error_get_message (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_error_set_message (union Sass_Value* v, char* msg);
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// Getters and setters for Sass_Warning
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ADDAPI char* ADDCALL sass_warning_get_message (const union Sass_Value* v);
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ADDAPI void ADDCALL sass_warning_set_message (union Sass_Value* v, char* msg);
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#ifdef __cplusplus
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} // __cplusplus defined.
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#endif
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#endif
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