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Diffstat (limited to 'node_modules/node-sass/src/libsass/src/context.cpp')
-rw-r--r--node_modules/node-sass/src/libsass/src/context.cpp880
1 files changed, 0 insertions, 880 deletions
diff --git a/node_modules/node-sass/src/libsass/src/context.cpp b/node_modules/node-sass/src/libsass/src/context.cpp
deleted file mode 100644
index dae2cbd..0000000
--- a/node_modules/node-sass/src/libsass/src/context.cpp
+++ /dev/null
@@ -1,880 +0,0 @@
-#include "sass.hpp"
-#include <string>
-#include <cstdlib>
-#include <cstring>
-#include <iomanip>
-#include <sstream>
-#include <iostream>
-
-#include "ast.hpp"
-#include "util.hpp"
-#include "sass.h"
-#include "context.hpp"
-#include "plugins.hpp"
-#include "constants.hpp"
-#include "parser.hpp"
-#include "file.hpp"
-#include "inspect.hpp"
-#include "output.hpp"
-#include "expand.hpp"
-#include "eval.hpp"
-#include "check_nesting.hpp"
-#include "cssize.hpp"
-#include "listize.hpp"
-#include "extend.hpp"
-#include "remove_placeholders.hpp"
-#include "functions.hpp"
-#include "sass_functions.hpp"
-#include "backtrace.hpp"
-#include "sass2scss.h"
-#include "prelexer.hpp"
-#include "emitter.hpp"
-
-namespace Sass {
- using namespace Constants;
- using namespace File;
- using namespace Sass;
-
- inline bool sort_importers (const Sass_Importer_Entry& i, const Sass_Importer_Entry& j)
- { return sass_importer_get_priority(i) > sass_importer_get_priority(j); }
-
- static std::string safe_input(const char* in_path)
- {
- // enforce some safe defaults
- // used to create relative file links
- std::string safe_path(in_path ? in_path : "");
- return safe_path == "" ? "stdin" : safe_path;
- }
-
- static std::string safe_output(const char* out_path, const std::string& input_path = "")
- {
- std::string safe_path(out_path ? out_path : "");
- // maybe we can extract an output path from input path
- if (safe_path == "" && input_path != "") {
- int lastindex = static_cast<int>(input_path.find_last_of("."));
- return (lastindex > -1 ? input_path.substr(0, lastindex) : input_path) + ".css";
- }
- // enforce some safe defaults
- // used to create relative file links
- return safe_path == "" ? "stdout" : safe_path;
- }
-
- Context::Context(struct Sass_Context& c_ctx)
- : CWD(File::get_cwd()),
- c_options(c_ctx),
- entry_path(""),
- head_imports(0),
- plugins(),
- emitter(c_options),
-
- ast_gc(),
- strings(),
- resources(),
- sheets(),
- subset_map(),
- import_stack(),
- callee_stack(),
- traces(),
- c_compiler(NULL),
-
- c_headers (std::vector<Sass_Importer_Entry>()),
- c_importers (std::vector<Sass_Importer_Entry>()),
- c_functions (std::vector<Sass_Function_Entry>()),
-
- indent (safe_str(c_options.indent, " ")),
- linefeed (safe_str(c_options.linefeed, "\n")),
-
- input_path (make_canonical_path(safe_input(c_options.input_path))),
- output_path (make_canonical_path(safe_output(c_options.output_path, input_path))),
- source_map_file (make_canonical_path(safe_str(c_options.source_map_file, ""))),
- source_map_root (make_canonical_path(safe_str(c_options.source_map_root, "")))
-
- {
-
- // Sass 3.4: The current working directory will no longer be placed onto the Sass load path by default.
- // If you need the current working directory to be available, set SASS_PATH=. in your shell's environment.
- // include_paths.push_back(CWD);
-
- // collect more paths from different options
- collect_include_paths(c_options.include_path);
- collect_include_paths(c_options.include_paths);
- collect_plugin_paths(c_options.plugin_path);
- collect_plugin_paths(c_options.plugin_paths);
-
- // load plugins and register custom behaviors
- for(auto plug : plugin_paths) plugins.load_plugins(plug);
- for(auto fn : plugins.get_headers()) c_headers.push_back(fn);
- for(auto fn : plugins.get_importers()) c_importers.push_back(fn);
- for(auto fn : plugins.get_functions()) c_functions.push_back(fn);
-
- // sort the items by priority (lowest first)
- sort (c_headers.begin(), c_headers.end(), sort_importers);
- sort (c_importers.begin(), c_importers.end(), sort_importers);
-
- emitter.set_filename(abs2rel(output_path, source_map_file, CWD));
-
- }
-
- void Context::add_c_function(Sass_Function_Entry function)
- {
- c_functions.push_back(function);
- }
- void Context::add_c_header(Sass_Importer_Entry header)
- {
- c_headers.push_back(header);
- // need to sort the array afterwards (no big deal)
- sort (c_headers.begin(), c_headers.end(), sort_importers);
- }
- void Context::add_c_importer(Sass_Importer_Entry importer)
- {
- c_importers.push_back(importer);
- // need to sort the array afterwards (no big deal)
- sort (c_importers.begin(), c_importers.end(), sort_importers);
- }
-
- Context::~Context()
- {
- // resources were allocated by malloc
- for (size_t i = 0; i < resources.size(); ++i) {
- free(resources[i].contents);
- free(resources[i].srcmap);
- }
- // free all strings we kept alive during compiler execution
- for (size_t n = 0; n < strings.size(); ++n) free(strings[n]);
- // everything that gets put into sources will be freed by us
- // this shouldn't have anything in it anyway!?
- for (size_t m = 0; m < import_stack.size(); ++m) {
- sass_import_take_source(import_stack[m]);
- sass_import_take_srcmap(import_stack[m]);
- sass_delete_import(import_stack[m]);
- }
- // clear inner structures (vectors) and input source
- resources.clear(); import_stack.clear();
- subset_map.clear(), sheets.clear();
- }
-
- Data_Context::~Data_Context()
- {
- // --> this will be freed by resources
- // make sure we free the source even if not processed!
- // if (resources.size() == 0 && source_c_str) free(source_c_str);
- // if (resources.size() == 0 && srcmap_c_str) free(srcmap_c_str);
- // source_c_str = 0; srcmap_c_str = 0;
- }
-
- File_Context::~File_Context()
- {
- }
-
- void Context::collect_include_paths(const char* paths_str)
- {
- if (paths_str) {
- const char* beg = paths_str;
- const char* end = Prelexer::find_first<PATH_SEP>(beg);
-
- while (end) {
- std::string path(beg, end - beg);
- if (!path.empty()) {
- if (*path.rbegin() != '/') path += '/';
- include_paths.push_back(path);
- }
- beg = end + 1;
- end = Prelexer::find_first<PATH_SEP>(beg);
- }
-
- std::string path(beg);
- if (!path.empty()) {
- if (*path.rbegin() != '/') path += '/';
- include_paths.push_back(path);
- }
- }
- }
-
- void Context::collect_include_paths(string_list* paths_array)
- {
- while (paths_array)
- {
- collect_include_paths(paths_array->string);
- paths_array = paths_array->next;
- }
- }
-
- void Context::collect_plugin_paths(const char* paths_str)
- {
- if (paths_str) {
- const char* beg = paths_str;
- const char* end = Prelexer::find_first<PATH_SEP>(beg);
-
- while (end) {
- std::string path(beg, end - beg);
- if (!path.empty()) {
- if (*path.rbegin() != '/') path += '/';
- plugin_paths.push_back(path);
- }
- beg = end + 1;
- end = Prelexer::find_first<PATH_SEP>(beg);
- }
-
- std::string path(beg);
- if (!path.empty()) {
- if (*path.rbegin() != '/') path += '/';
- plugin_paths.push_back(path);
- }
- }
- }
-
- void Context::collect_plugin_paths(string_list* paths_array)
- {
- while (paths_array)
- {
- collect_plugin_paths(paths_array->string);
- paths_array = paths_array->next;
- }
- }
-
- // resolve the imp_path in base_path or include_paths
- // looks for alternatives and returns a list from one directory
- std::vector<Include> Context::find_includes(const Importer& import)
- {
- // make sure we resolve against an absolute path
- std::string base_path(rel2abs(import.base_path));
- // first try to resolve the load path relative to the base path
- std::vector<Include> vec(resolve_includes(base_path, import.imp_path));
- // then search in every include path (but only if nothing found yet)
- for (size_t i = 0, S = include_paths.size(); vec.size() == 0 && i < S; ++i)
- {
- // call resolve_includes and individual base path and append all results
- std::vector<Include> resolved(resolve_includes(include_paths[i], import.imp_path));
- if (resolved.size()) vec.insert(vec.end(), resolved.begin(), resolved.end());
- }
- // return vector
- return vec;
- }
-
- // register include with resolved path and its content
- // memory of the resources will be freed by us on exit
- void Context::register_resource(const Include& inc, const Resource& res)
- {
-
- // do not parse same resource twice
- // maybe raise an error in this case
- // if (sheets.count(inc.abs_path)) {
- // free(res.contents); free(res.srcmap);
- // throw std::runtime_error("duplicate resource registered");
- // return;
- // }
-
- // get index for this resource
- size_t idx = resources.size();
-
- // tell emitter about new resource
- emitter.add_source_index(idx);
-
- // put resources under our control
- // the memory will be freed later
- resources.push_back(res);
-
- // add a relative link to the working directory
- included_files.push_back(inc.abs_path);
- // add a relative link to the source map output file
- srcmap_links.push_back(abs2rel(inc.abs_path, source_map_file, CWD));
-
- // get pointer to the loaded content
- Sass_Import_Entry import = sass_make_import(
- inc.imp_path.c_str(),
- inc.abs_path.c_str(),
- res.contents,
- res.srcmap
- );
- // add the entry to the stack
- import_stack.push_back(import);
-
- // get pointer to the loaded content
- const char* contents = resources[idx].contents;
- // keep a copy of the path around (for parserstates)
- // ToDo: we clean it, but still not very elegant!?
- strings.push_back(sass_copy_c_string(inc.abs_path.c_str()));
- // create the initial parser state from resource
- ParserState pstate(strings.back(), contents, idx);
-
- // check existing import stack for possible recursion
- for (size_t i = 0; i < import_stack.size() - 2; ++i) {
- auto parent = import_stack[i];
- if (std::strcmp(parent->abs_path, import->abs_path) == 0) {
- std::string cwd(File::get_cwd());
- // make path relative to the current directory
- std::string stack("An @import loop has been found:");
- for (size_t n = 1; n < i + 2; ++n) {
- stack += "\n " + std::string(File::abs2rel(import_stack[n]->abs_path, cwd, cwd)) +
- " imports " + std::string(File::abs2rel(import_stack[n+1]->abs_path, cwd, cwd));
- }
- // implement error throw directly until we
- // decided how to handle full stack traces
- throw Exception::InvalidSyntax(pstate, traces, stack);
- // error(stack, prstate ? *prstate : pstate, import_stack);
- }
- }
-
- // create a parser instance from the given c_str buffer
- Parser p(Parser::from_c_str(contents, *this, traces, pstate));
- // do not yet dispose these buffers
- sass_import_take_source(import);
- sass_import_take_srcmap(import);
- // then parse the root block
- Block_Obj root = p.parse();
- // delete memory of current stack frame
- sass_delete_import(import_stack.back());
- // remove current stack frame
- import_stack.pop_back();
- // create key/value pair for ast node
- std::pair<const std::string, StyleSheet>
- ast_pair(inc.abs_path, { res, root });
- // register resulting resource
- sheets.insert(ast_pair);
- }
-
- // register include with resolved path and its content
- // memory of the resources will be freed by us on exit
- void Context::register_resource(const Include& inc, const Resource& res, ParserState& prstate)
- {
- traces.push_back(Backtrace(prstate));
- register_resource(inc, res);
- traces.pop_back();
- }
-
- // Add a new import to the context (called from `import_url`)
- Include Context::load_import(const Importer& imp, ParserState pstate)
- {
-
- // search for valid imports (ie. partials) on the filesystem
- // this may return more than one valid result (ambiguous imp_path)
- const std::vector<Include> resolved(find_includes(imp));
-
- // error nicely on ambiguous imp_path
- if (resolved.size() > 1) {
- std::stringstream msg_stream;
- msg_stream << "It's not clear which file to import for ";
- msg_stream << "'@import \"" << imp.imp_path << "\"'." << "\n";
- msg_stream << "Candidates:" << "\n";
- for (size_t i = 0, L = resolved.size(); i < L; ++i)
- { msg_stream << " " << resolved[i].imp_path << "\n"; }
- msg_stream << "Please delete or rename all but one of these files." << "\n";
- error(msg_stream.str(), pstate, traces);
- }
-
- // process the resolved entry
- else if (resolved.size() == 1) {
- bool use_cache = c_importers.size() == 0;
- // use cache for the resource loading
- if (use_cache && sheets.count(resolved[0].abs_path)) return resolved[0];
- // try to read the content of the resolved file entry
- // the memory buffer returned must be freed by us!
- if (char* contents = read_file(resolved[0].abs_path)) {
- // register the newly resolved file resource
- register_resource(resolved[0], { contents, 0 }, pstate);
- // return resolved entry
- return resolved[0];
- }
- }
-
- // nothing found
- return { imp, "" };
-
- }
-
- void Context::import_url (Import_Ptr imp, std::string load_path, const std::string& ctx_path) {
-
- ParserState pstate(imp->pstate());
- std::string imp_path(unquote(load_path));
- std::string protocol("file");
-
- using namespace Prelexer;
- if (const char* proto = sequence< identifier, exactly<':'>, exactly<'/'>, exactly<'/'> >(imp_path.c_str())) {
-
- protocol = std::string(imp_path.c_str(), proto - 3);
- // if (protocol.compare("file") && true) { }
- }
-
- // add urls (protocol other than file) and urls without procotol to `urls` member
- // ToDo: if ctx_path is already a file resource, we should not add it here?
- if (imp->import_queries() || protocol != "file" || imp_path.substr(0, 2) == "//") {
- imp->urls().push_back(SASS_MEMORY_NEW(String_Quoted, imp->pstate(), load_path));
- }
- else if (imp_path.length() > 4 && imp_path.substr(imp_path.length() - 4, 4) == ".css") {
- String_Constant_Ptr loc = SASS_MEMORY_NEW(String_Constant, pstate, unquote(load_path));
- Argument_Obj loc_arg = SASS_MEMORY_NEW(Argument, pstate, loc);
- Arguments_Obj loc_args = SASS_MEMORY_NEW(Arguments, pstate);
- loc_args->append(loc_arg);
- Function_Call_Ptr new_url = SASS_MEMORY_NEW(Function_Call, pstate, "url", loc_args);
- imp->urls().push_back(new_url);
- }
- else {
- const Importer importer(imp_path, ctx_path);
- Include include(load_import(importer, pstate));
- if (include.abs_path.empty()) {
- error("File to import not found or unreadable: " + imp_path + ".", pstate, traces);
- }
- imp->incs().push_back(include);
- }
-
- }
-
-
- // call custom importers on the given (unquoted) load_path and eventually parse the resulting style_sheet
- bool Context::call_loader(const std::string& load_path, const char* ctx_path, ParserState& pstate, Import_Ptr imp, std::vector<Sass_Importer_Entry> importers, bool only_one)
- {
- // unique counter
- size_t count = 0;
- // need one correct import
- bool has_import = false;
- // process all custom importers (or custom headers)
- for (Sass_Importer_Entry& importer_ent : importers) {
- // int priority = sass_importer_get_priority(importer);
- Sass_Importer_Fn fn = sass_importer_get_function(importer_ent);
- // skip importer if it returns NULL
- if (Sass_Import_List includes =
- fn(load_path.c_str(), importer_ent, c_compiler)
- ) {
- // get c pointer copy to iterate over
- Sass_Import_List it_includes = includes;
- while (*it_includes) { ++count;
- // create unique path to use as key
- std::string uniq_path = load_path;
- if (!only_one && count) {
- std::stringstream path_strm;
- path_strm << uniq_path << ":" << count;
- uniq_path = path_strm.str();
- }
- // create the importer struct
- Importer importer(uniq_path, ctx_path);
- // query data from the current include
- Sass_Import_Entry include_ent = *it_includes;
- char* source = sass_import_take_source(include_ent);
- char* srcmap = sass_import_take_srcmap(include_ent);
- size_t line = sass_import_get_error_line(include_ent);
- size_t column = sass_import_get_error_column(include_ent);
- const char *abs_path = sass_import_get_abs_path(include_ent);
- // handle error message passed back from custom importer
- // it may (or may not) override the line and column info
- if (const char* err_message = sass_import_get_error_message(include_ent)) {
- if (source || srcmap) register_resource({ importer, uniq_path }, { source, srcmap }, pstate);
- if (line == std::string::npos && column == std::string::npos) error(err_message, pstate, traces);
- else error(err_message, ParserState(ctx_path, source, Position(line, column)), traces);
- }
- // content for import was set
- else if (source) {
- // resolved abs_path should be set by custom importer
- // use the created uniq_path as fallback (maybe enforce)
- std::string path_key(abs_path ? abs_path : uniq_path);
- // create the importer struct
- Include include(importer, path_key);
- // attach information to AST node
- imp->incs().push_back(include);
- // register the resource buffers
- register_resource(include, { source, srcmap }, pstate);
- }
- // only a path was retuned
- // try to load it like normal
- else if(abs_path) {
- // checks some urls to preserve
- // `http://`, `https://` and `//`
- // or dispatchs to `import_file`
- // which will check for a `.css` extension
- // or resolves the file on the filesystem
- // added and resolved via `add_file`
- // finally stores everything on `imp`
- import_url(imp, abs_path, ctx_path);
- }
- // move to next
- ++it_includes;
- }
- // deallocate the returned memory
- sass_delete_import_list(includes);
- // set success flag
- has_import = true;
- // break out of loop
- if (only_one) break;
- }
- }
- // return result
- return has_import;
- }
-
- void register_function(Context&, Signature sig, Native_Function f, Env* env);
- void register_function(Context&, Signature sig, Native_Function f, size_t arity, Env* env);
- void register_overload_stub(Context&, std::string name, Env* env);
- void register_built_in_functions(Context&, Env* env);
- void register_c_functions(Context&, Env* env, Sass_Function_List);
- void register_c_function(Context&, Env* env, Sass_Function_Entry);
-
- char* Context::render(Block_Obj root)
- {
- // check for valid block
- if (!root) return 0;
- // start the render process
- root->perform(&emitter);
- // finish emitter stream
- emitter.finalize();
- // get the resulting buffer from stream
- OutputBuffer emitted = emitter.get_buffer();
- // should we append a source map url?
- if (!c_options.omit_source_map_url) {
- // generate an embeded source map
- if (c_options.source_map_embed) {
- emitted.buffer += linefeed;
- emitted.buffer += format_embedded_source_map();
- }
- // or just link the generated one
- else if (source_map_file != "") {
- emitted.buffer += linefeed;
- emitted.buffer += format_source_mapping_url(source_map_file);
- }
- }
- // create a copy of the resulting buffer string
- // this must be freed or taken over by implementor
- return sass_copy_c_string(emitted.buffer.c_str());
- }
-
- void Context::apply_custom_headers(Block_Obj root, const char* ctx_path, ParserState pstate)
- {
- // create a custom import to resolve headers
- Import_Obj imp = SASS_MEMORY_NEW(Import, pstate);
- // dispatch headers which will add custom functions
- // custom headers are added to the import instance
- call_headers(entry_path, ctx_path, pstate, imp);
- // increase head count to skip later
- head_imports += resources.size() - 1;
- // add the statement if we have urls
- if (!imp->urls().empty()) root->append(imp);
- // process all other resources (add Import_Stub nodes)
- for (size_t i = 0, S = imp->incs().size(); i < S; ++i) {
- root->append(SASS_MEMORY_NEW(Import_Stub, pstate, imp->incs()[i]));
- }
- }
-
- Block_Obj File_Context::parse()
- {
-
- // check if entry file is given
- if (input_path.empty()) return 0;
-
- // create absolute path from input filename
- // ToDo: this should be resolved via custom importers
- std::string abs_path(rel2abs(input_path, CWD));
-
- // try to load the entry file
- char* contents = read_file(abs_path);
-
- // alternatively also look inside each include path folder
- // I think this differs from ruby sass (IMO too late to remove)
- for (size_t i = 0, S = include_paths.size(); contents == 0 && i < S; ++i) {
- // build absolute path for this include path entry
- abs_path = rel2abs(input_path, include_paths[i]);
- // try to load the resulting path
- contents = read_file(abs_path);
- }
-
- // abort early if no content could be loaded (various reasons)
- if (!contents) throw std::runtime_error("File to read not found or unreadable: " + input_path);
-
- // store entry path
- entry_path = abs_path;
-
- // create entry only for import stack
- Sass_Import_Entry import = sass_make_import(
- input_path.c_str(),
- entry_path.c_str(),
- contents,
- 0
- );
- // add the entry to the stack
- import_stack.push_back(import);
-
- // create the source entry for file entry
- register_resource({{ input_path, "." }, abs_path }, { contents, 0 });
-
- // create root ast tree node
- return compile();
-
- }
-
- Block_Obj Data_Context::parse()
- {
-
- // check if source string is given
- if (!source_c_str) return 0;
-
- // convert indented sass syntax
- if(c_options.is_indented_syntax_src) {
- // call sass2scss to convert the string
- char * converted = sass2scss(source_c_str,
- // preserve the structure as much as possible
- SASS2SCSS_PRETTIFY_1 | SASS2SCSS_KEEP_COMMENT);
- // replace old source_c_str with converted
- free(source_c_str); source_c_str = converted;
- }
-
- // remember entry path (defaults to stdin for string)
- entry_path = input_path.empty() ? "stdin" : input_path;
-
- // ToDo: this may be resolved via custom importers
- std::string abs_path(rel2abs(entry_path));
- char* abs_path_c_str = sass_copy_c_string(abs_path.c_str());
- strings.push_back(abs_path_c_str);
-
- // create entry only for the import stack
- Sass_Import_Entry import = sass_make_import(
- entry_path.c_str(),
- abs_path_c_str,
- source_c_str,
- srcmap_c_str
- );
- // add the entry to the stack
- import_stack.push_back(import);
-
- // register a synthetic resource (path does not really exist, skip in includes)
- register_resource({{ input_path, "." }, input_path }, { source_c_str, srcmap_c_str });
-
- // create root ast tree node
- return compile();
- }
-
-
-
- // parse root block from includes
- Block_Obj Context::compile()
- {
- // abort if there is no data
- if (resources.size() == 0) return 0;
- // get root block from the first style sheet
- Block_Obj root = sheets.at(entry_path).root;
- // abort on invalid root
- if (root.isNull()) return 0;
- Env global; // create root environment
- // register built-in functions on env
- register_built_in_functions(*this, &global);
- // register custom functions (defined via C-API)
- for (size_t i = 0, S = c_functions.size(); i < S; ++i)
- { register_c_function(*this, &global, c_functions[i]); }
- // create initial backtrace entry
- // create crtp visitor objects
- Expand expand(*this, &global);
- Cssize cssize(*this);
- CheckNesting check_nesting;
- // check nesting in all files
- for (auto sheet : sheets) {
- auto styles = sheet.second;
- check_nesting(styles.root);
- }
- // expand and eval the tree
- root = expand(root);
- // check nesting
- check_nesting(root);
- // merge and bubble certain rules
- root = cssize(root);
- // should we extend something?
- if (!subset_map.empty()) {
- // create crtp visitor object
- Extend extend(subset_map);
- extend.setEval(expand.eval);
- // extend tree nodes
- extend(root);
- }
-
- // clean up by removing empty placeholders
- // ToDo: maybe we can do this somewhere else?
- Remove_Placeholders remove_placeholders;
- root->perform(&remove_placeholders);
- // return processed tree
- return root;
- }
- // EO compile
-
- std::string Context::format_embedded_source_map()
- {
- std::string map = emitter.render_srcmap(*this);
- std::istringstream is( map );
- std::ostringstream buffer;
- base64::encoder E;
- E.encode(is, buffer);
- std::string url = "data:application/json;base64," + buffer.str();
- url.erase(url.size() - 1);
- return "/*# sourceMappingURL=" + url + " */";
- }
-
- std::string Context::format_source_mapping_url(const std::string& file)
- {
- std::string url = abs2rel(file, output_path, CWD);
- return "/*# sourceMappingURL=" + url + " */";
- }
-
- char* Context::render_srcmap()
- {
- if (source_map_file == "") return 0;
- std::string map = emitter.render_srcmap(*this);
- return sass_copy_c_string(map.c_str());
- }
-
-
- // for data context we want to start after "stdin"
- // we probably always want to skip the header includes?
- std::vector<std::string> Context::get_included_files(bool skip, size_t headers)
- {
- // create a copy of the vector for manipulations
- std::vector<std::string> includes = included_files;
- if (includes.size() == 0) return includes;
- if (skip) { includes.erase( includes.begin(), includes.begin() + 1 + headers); }
- else { includes.erase( includes.begin() + 1, includes.begin() + 1 + headers); }
- includes.erase( std::unique( includes.begin(), includes.end() ), includes.end() );
- std::sort( includes.begin() + (skip ? 0 : 1), includes.end() );
- return includes;
- }
-
- void register_function(Context& ctx, Signature sig, Native_Function f, Env* env)
- {
- Definition_Ptr def = make_native_function(sig, f, ctx);
- def->environment(env);
- (*env)[def->name() + "[f]"] = def;
- }
-
- void register_function(Context& ctx, Signature sig, Native_Function f, size_t arity, Env* env)
- {
- Definition_Ptr def = make_native_function(sig, f, ctx);
- std::stringstream ss;
- ss << def->name() << "[f]" << arity;
- def->environment(env);
- (*env)[ss.str()] = def;
- }
-
- void register_overload_stub(Context& ctx, std::string name, Env* env)
- {
- Definition_Ptr stub = SASS_MEMORY_NEW(Definition,
- ParserState("[built-in function]"),
- 0,
- name,
- 0,
- 0,
- true);
- (*env)[name + "[f]"] = stub;
- }
-
-
- void register_built_in_functions(Context& ctx, Env* env)
- {
- using namespace Functions;
- // RGB Functions
- register_function(ctx, rgb_sig, rgb, env);
- register_overload_stub(ctx, "rgba", env);
- register_function(ctx, rgba_4_sig, rgba_4, 4, env);
- register_function(ctx, rgba_2_sig, rgba_2, 2, env);
- register_function(ctx, red_sig, red, env);
- register_function(ctx, green_sig, green, env);
- register_function(ctx, blue_sig, blue, env);
- register_function(ctx, mix_sig, mix, env);
- // HSL Functions
- register_function(ctx, hsl_sig, hsl, env);
- register_function(ctx, hsla_sig, hsla, env);
- register_function(ctx, hue_sig, hue, env);
- register_function(ctx, saturation_sig, saturation, env);
- register_function(ctx, lightness_sig, lightness, env);
- register_function(ctx, adjust_hue_sig, adjust_hue, env);
- register_function(ctx, lighten_sig, lighten, env);
- register_function(ctx, darken_sig, darken, env);
- register_function(ctx, saturate_sig, saturate, env);
- register_function(ctx, desaturate_sig, desaturate, env);
- register_function(ctx, grayscale_sig, grayscale, env);
- register_function(ctx, complement_sig, complement, env);
- register_function(ctx, invert_sig, invert, env);
- // Opacity Functions
- register_function(ctx, alpha_sig, alpha, env);
- register_function(ctx, opacity_sig, alpha, env);
- register_function(ctx, opacify_sig, opacify, env);
- register_function(ctx, fade_in_sig, opacify, env);
- register_function(ctx, transparentize_sig, transparentize, env);
- register_function(ctx, fade_out_sig, transparentize, env);
- // Other Color Functions
- register_function(ctx, adjust_color_sig, adjust_color, env);
- register_function(ctx, scale_color_sig, scale_color, env);
- register_function(ctx, change_color_sig, change_color, env);
- register_function(ctx, ie_hex_str_sig, ie_hex_str, env);
- // String Functions
- register_function(ctx, unquote_sig, sass_unquote, env);
- register_function(ctx, quote_sig, sass_quote, env);
- register_function(ctx, str_length_sig, str_length, env);
- register_function(ctx, str_insert_sig, str_insert, env);
- register_function(ctx, str_index_sig, str_index, env);
- register_function(ctx, str_slice_sig, str_slice, env);
- register_function(ctx, to_upper_case_sig, to_upper_case, env);
- register_function(ctx, to_lower_case_sig, to_lower_case, env);
- // Number Functions
- register_function(ctx, percentage_sig, percentage, env);
- register_function(ctx, round_sig, round, env);
- register_function(ctx, ceil_sig, ceil, env);
- register_function(ctx, floor_sig, floor, env);
- register_function(ctx, abs_sig, abs, env);
- register_function(ctx, min_sig, min, env);
- register_function(ctx, max_sig, max, env);
- register_function(ctx, random_sig, random, env);
- // List Functions
- register_function(ctx, length_sig, length, env);
- register_function(ctx, nth_sig, nth, env);
- register_function(ctx, set_nth_sig, set_nth, env);
- register_function(ctx, index_sig, index, env);
- register_function(ctx, join_sig, join, env);
- register_function(ctx, append_sig, append, env);
- register_function(ctx, zip_sig, zip, env);
- register_function(ctx, list_separator_sig, list_separator, env);
- register_function(ctx, is_bracketed_sig, is_bracketed, env);
- // Map Functions
- register_function(ctx, map_get_sig, map_get, env);
- register_function(ctx, map_merge_sig, map_merge, env);
- register_function(ctx, map_remove_sig, map_remove, env);
- register_function(ctx, map_keys_sig, map_keys, env);
- register_function(ctx, map_values_sig, map_values, env);
- register_function(ctx, map_has_key_sig, map_has_key, env);
- register_function(ctx, keywords_sig, keywords, env);
- // Introspection Functions
- register_function(ctx, type_of_sig, type_of, env);
- register_function(ctx, unit_sig, unit, env);
- register_function(ctx, unitless_sig, unitless, env);
- register_function(ctx, comparable_sig, comparable, env);
- register_function(ctx, variable_exists_sig, variable_exists, env);
- register_function(ctx, global_variable_exists_sig, global_variable_exists, env);
- register_function(ctx, function_exists_sig, function_exists, env);
- register_function(ctx, mixin_exists_sig, mixin_exists, env);
- register_function(ctx, feature_exists_sig, feature_exists, env);
- register_function(ctx, call_sig, call, env);
- register_function(ctx, content_exists_sig, content_exists, env);
- register_function(ctx, get_function_sig, get_function, env);
- // Boolean Functions
- register_function(ctx, not_sig, sass_not, env);
- register_function(ctx, if_sig, sass_if, env);
- // Misc Functions
- register_function(ctx, inspect_sig, inspect, env);
- register_function(ctx, unique_id_sig, unique_id, env);
- // Selector functions
- register_function(ctx, selector_nest_sig, selector_nest, env);
- register_function(ctx, selector_append_sig, selector_append, env);
- register_function(ctx, selector_extend_sig, selector_extend, env);
- register_function(ctx, selector_replace_sig, selector_replace, env);
- register_function(ctx, selector_unify_sig, selector_unify, env);
- register_function(ctx, is_superselector_sig, is_superselector, env);
- register_function(ctx, simple_selectors_sig, simple_selectors, env);
- register_function(ctx, selector_parse_sig, selector_parse, env);
- }
-
- void register_c_functions(Context& ctx, Env* env, Sass_Function_List descrs)
- {
- while (descrs && *descrs) {
- register_c_function(ctx, env, *descrs);
- ++descrs;
- }
- }
- void register_c_function(Context& ctx, Env* env, Sass_Function_Entry descr)
- {
- Definition_Ptr def = make_c_function(descr, ctx);
- def->environment(env);
- (*env)[def->name() + "[f]"] = def;
- }
-
-}