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#include <cstdio>
#include <cstring>
#include "document.hpp"
#include "eval_apply.hpp"
#include "error.hpp"
#include <iostream>
#include <sstream>
#include <sys/stat.h>
namespace Sass {
Document::Document(Context& ctx) : context(ctx)
{ ++context.ref_count; }
Document::Document(const Document& doc)
: path(doc.path),
source(doc.source),
position(doc.position),
end(doc.end),
line(doc.line),
own_source(doc.own_source),
context(doc.context),
root(doc.root),
lexed(doc.lexed)
{ ++doc.context.ref_count; }
Document::~Document()
{ --context.ref_count; }
Document Document::make_from_file(Context& ctx, string path)
{
std::FILE *f;
const char* path_str = path.c_str();
struct stat st;
string tmp;
if (stat(path_str, &st) == -1 || S_ISDIR(st.st_mode)) {
tmp = path + ".scss";
path_str = tmp.c_str();
if (stat(path_str, &st) == -1 || S_ISDIR(st.st_mode)) {
const char *full_path_str = path.c_str();
const char *file_name_str = Prelexer::folders(full_path_str);
tmp = Token::make(full_path_str, file_name_str).to_string() +
"_" +
string(file_name_str);
path_str = tmp.c_str();
if (stat(path_str, &st) == -1 || S_ISDIR(st.st_mode)) {
tmp = tmp + ".scss";
path_str = tmp.c_str();
if (stat(path_str, &st) == -1 || S_ISDIR(st.st_mode))
throw path;
}
}
}
f = std::fopen(path_str, "rb");
size_t len = st.st_size;
char* source = new char[len + 1];
size_t bytes_read = std::fread(source, sizeof(char), len, f);
if (bytes_read != len) {
std::cerr << "Warning: possible error reading from " << path << std::endl;
}
if (std::ferror(f)) throw path;
source[len] = '\0';
char* end = source + len;
if (std::fclose(f)) throw path;
const char *file_name_str = Prelexer::folders(path_str);
string include_path(path_str, file_name_str - path_str);
Document doc(ctx);
doc.path = path;
doc.line = 1;
doc.root = ctx.new_Node(Node::root, path, 1, 0);
doc.lexed = Token::make();
doc.own_source = true;
doc.source = source;
doc.end = end;
doc.position = source;
doc.context.source_refs.push_back(source);
if (!include_path.empty()) {
doc.context.include_paths.push_back(include_path);
}
return doc;
}
Document Document::make_from_source_chars(Context& ctx, char* src, string path, bool own_source)
{
Document doc(ctx);
doc.path = path;
doc.line = 1;
doc.root = ctx.new_Node(Node::root, path, 1, 0);
doc.lexed = Token::make();
doc.own_source = own_source;
doc.source = src;
doc.end = src + std::strlen(src);
doc.position = src;
if (own_source) doc.context.source_refs.push_back(src);
return doc;
}
Document Document::make_from_token(Context& ctx, Token t, string path, size_t line_number)
{
Document doc(ctx);
doc.path = path;
doc.line = line_number;
doc.root = ctx.new_Node(Node::root, path, 1, 0);
doc.lexed = Token::make();
doc.own_source = false;
doc.source = const_cast<char*>(t.begin);
doc.end = t.end;
doc.position = doc.source;
return doc;
}
void Document::throw_syntax_error(string message, size_t ln)
{ throw Error(Error::syntax, path, ln ? ln : line, message); }
void Document::throw_read_error(string message, size_t ln)
{ throw Error(Error::read, path, ln ? ln : line, message); }
using std::string;
using std::stringstream;
using std::endl;
string Document::emit_css(CSS_Style style) {
stringstream output;
switch (style) {
case echo:
root.echo(output);
break;
case nested:
root.emit_nested_css(output, 0, true);
break;
case expanded:
root.emit_expanded_css(output, "");
break;
default:
break;
}
string retval(output.str());
// trim trailing whitespace
if (!retval.empty()) {
size_t newlines = 0;
size_t i = retval.length();
while (i--) {
if (retval[i] == '\n') {
++newlines;
continue;
}
else {
break;
}
}
retval.resize(retval.length() - newlines);
retval += "\n";
}
return retval;
}
}