Exemplo n.º 1
0
static astring *find_include_file(int srcrootlen, const astring *srcfile, const astring *filename)
{
	include_path *curpath;

	/* iterate over include paths and find the file */
	for (curpath = incpaths; curpath != NULL; curpath = curpath->next)
	{
		astring *srcincpath = astring_dup(curpath->path);
		core_file *testfile;
		int lastsepindex = 0;
		int sepindex;

		/* a '.' include path is specially treated */
		if (astring_cmpc(curpath->path, ".") == 0)
			astring_cpysubstr(srcincpath, srcfile, 0, astring_rchr(srcfile, 0, PATH_SEPARATOR[0]));

		/* append the filename piecemeal to account for directories */
		while ((sepindex = astring_chr(filename, lastsepindex, '/')) != -1)
		{
			astring *pathpart = astring_dupsubstr(filename, lastsepindex, sepindex - lastsepindex);

			/* handle .. by removing a chunk from the incpath */
			if (astring_cmpc(pathpart, "..") == 0)
			{
				int sepindex_part = astring_rchr(srcincpath, 0, PATH_SEPARATOR[0]);
				if (sepindex_part != -1)
					astring_substr(srcincpath, 0, sepindex_part);
			}

			/* otherwise, append a path separator and the pathpart */
			else
				astring_cat(astring_catc(srcincpath, PATH_SEPARATOR), pathpart);

			/* advance past the previous index */
			lastsepindex = sepindex + 1;

			/* free the path part we extracted */
			astring_free(pathpart);
		}

		/* now append the filename */
		astring_catsubstr(astring_catc(srcincpath, PATH_SEPARATOR), filename, lastsepindex, -1);

		/* see if we can open it */
		if (core_fopen(astring_c(srcincpath), OPEN_FLAG_READ, &testfile) == FILERR_NONE)
		{
			/* close the file */
			core_fclose(testfile);
			return srcincpath;
		}

		/* free our include path */
		astring_free(srcincpath);
	}
	return NULL;
}
Exemplo n.º 2
0
static astring *find_include_file(int srcrootlen, int dstrootlen, const astring *srcfile, const astring *dstfile, const astring *filename)
{
	include_path *curpath;

	/* iterate over include paths and find the file */
	for (curpath = incpaths; curpath != NULL; curpath = curpath->next)
	{
		astring *srcincpath = astring_cat(astring_dupsubstr(srcfile, 0, srcrootlen + 1), curpath->path);
		core_file *testfile;
		int lastsepindex = 0;
		int sepindex;

		/* a '.' include path is specially treated */
		if (astring_cmpc(curpath->path, ".") == 0)
			astring_cpysubstr(srcincpath, srcfile, 0, astring_rchr(srcfile, 0, PATH_SEPARATOR[0]));

		/* append the filename piecemeal to account for directories */
		while ((sepindex = astring_chr(filename, lastsepindex, '/')) != -1)
		{
			astring *pathpart = astring_dupsubstr(filename, lastsepindex, sepindex - lastsepindex);

			/* handle .. by removing a chunk from the incpath */
			if (astring_cmpc(pathpart, "..") == 0)
			{
				sepindex = astring_rchr(srcincpath, 0, PATH_SEPARATOR[0]);
				if (sepindex != -1)
					astring_substr(srcincpath, 0, sepindex);
			}

			/* otherwise, append a path separator and the pathpart */
			else
				astring_cat(astring_catc(srcincpath, PATH_SEPARATOR), pathpart);

			/* advance past the previous index */
			lastsepindex = sepindex + 1;

			/* free the path part we extracted */
			astring_free(pathpart);
		}

		/* now append the filename */
		astring_catsubstr(astring_catc(srcincpath, PATH_SEPARATOR), filename, lastsepindex, -1);

		/* see if we can open it */
		if (core_fopen(astring_c(srcincpath), OPEN_FLAG_READ, &testfile) == FILERR_NONE)
		{
			astring *tempfile = astring_alloc();
			astring *tempinc = astring_alloc();

			/* close the file */
			core_fclose(testfile);

			/* find the longest matching directory substring between the include and source file */
			lastsepindex = 0;
			while ((sepindex = astring_chr(srcincpath, lastsepindex, PATH_SEPARATOR[0])) != -1)
			{
				/* get substrings up to the current directory */
				astring_cpysubstr(tempfile, srcfile, 0, sepindex);
				astring_cpysubstr(tempinc, srcincpath, 0, sepindex);

				/* if we don't match, stop */
				if (astring_cmp(tempfile, tempinc) != 0)
					break;
				lastsepindex = sepindex + 1;
			}

			/* chop off the common parts of the paths */
			astring_cpysubstr(tempfile, srcfile, lastsepindex, -1);
			astring_replacechr(astring_substr(srcincpath, lastsepindex, -1), PATH_SEPARATOR[0], '/');

			/* for each directory left in the filename, we need to prepend a "../" */
			while ((sepindex = astring_chr(tempfile, 0, PATH_SEPARATOR[0])) != -1)
			{
				astring_substr(tempfile, sepindex + 1, -1);
				astring_insc(srcincpath, 0, "../");
			}
			astring_catc(srcincpath, ".html");

			/* free the strings and return the include path */
			astring_free(tempfile);
			astring_free(tempinc);
			return srcincpath;
		}

		/* free our include path */
		astring_free(srcincpath);
	}
	return NULL;
}