```C
// Input behaviours
enum Sass_Input_Style {
SASS_CONTEXT_NULL,
SASS_CONTEXT_FILE,
SASS_CONTEXT_DATA,
SASS_CONTEXT_FOLDER
};
// sass config options structure
struct Sass_Inspect_Options {
// Output style for the generated css code
// A value from above SASS_STYLE_* constants
enum Sass_Output_Style output_style;
// Precision for fractional numbers
int precision;
};
// sass config options structure
struct Sass_Output_Options : Sass_Inspect_Options {
// String to be used for indentation
const char* indent;
// String to be used to for line feeds
const char* linefeed;
// Emit comments in the generated CSS indicating
// the corresponding source line.
bool source_comments;
};
// sass config options structure
struct Sass_Options : Sass_Output_Options {
// embed sourceMappingUrl as data uri
bool source_map_embed;
// embed include contents in maps
bool source_map_contents;
// create file urls for sources
bool source_map_file_urls;
// Disable sourceMappingUrl in css output
bool omit_source_map_url;
// Treat source_string as sass (as opposed to scss)
bool is_indented_syntax_src;
// The input path is used for source map
// generation. It can be used to define
// something with string compilation or to
// overload the input file path. It is
// set to "stdin" for data contexts and
// to the input file on file contexts.
char* input_path;
// The output path is used for source map
// generation. LibSass will not write to
// this file, it is just used to create
// information in source-maps etc.
char* output_path;
// Colon-separated list of paths
// Semicolon-separated on Windows
// Maybe use array interface instead?
char* include_path;
char* plugin_path;
// Include paths (linked string list)
struct string_list* include_paths;
// Plugin paths (linked string list)
struct string_list* plugin_paths;
// Path to source map file
// Enables source map generation
// Used to create sourceMappingUrl
char* source_map_file;
// Directly inserted in source maps
char* source_map_root;
// Custom functions that can be called from sccs code
Sass_Function_List c_functions;
// Callback to overload imports
Sass_Importer_List c_importers;
// List of custom headers
Sass_Importer_List c_headers;
};
// base for all contexts
struct Sass_Context : Sass_Options
{
// store context type info
enum Sass_Input_Style type;
// generated output data
char* output_string;
// generated source map json
char* source_map_string;
// error status
int error_status;
char* error_json;
char* error_text;
char* error_message;
// error position
char* error_file;
size_t error_line;
size_t error_column;
const char* error_src;
// report imported files
char** included_files;
};
// struct for file compilation
struct Sass_File_Context : Sass_Context {
// no additional fields required
// input_path is already on options
};
// struct for data compilation
struct Sass_Data_Context : Sass_Context {
// provided source string
char* source_string;
char* srcmap_string;
};
// Compiler states
enum Sass_Compiler_State {
SASS_COMPILER_CREATED,
SASS_COMPILER_PARSED,
SASS_COMPILER_EXECUTED
};
// link c and cpp context
struct Sass_Compiler {
// progress status
Sass_Compiler_State state;
// original c context
Sass_Context* c_ctx;
// Sass::Context
Sass::Context* cpp_ctx;
// Sass::Block
Sass::Block_Obj root;
};
```