* Boston, MA 02111-1307, USA.
*/
+#include <string>
#include <assert.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
-
-#include <lispreader.h>
+#include "setup.h"
+#include "lispreader.h"
#define TOKEN_ERROR -1
#define TOKEN_EOF 0
static char token_string[MAX_TOKEN_LENGTH + 1] = "";
static int token_length = 0;
-static lisp_object_t end_marker = { LISP_TYPE_EOF };
-static lisp_object_t error_object = { LISP_TYPE_PARSE_ERROR };
-static lisp_object_t close_paren_marker = { LISP_TYPE_PARSE_ERROR };
-static lisp_object_t dot_marker = { LISP_TYPE_PARSE_ERROR };
+static lisp_object_t end_marker = { LISP_TYPE_EOF , {0,0} };
+static lisp_object_t error_object = { LISP_TYPE_PARSE_ERROR , {0,0} };
+static lisp_object_t close_paren_marker = { LISP_TYPE_PARSE_ERROR , {0,0} };
+static lisp_object_t dot_marker = { LISP_TYPE_PARSE_ERROR , {0,0} };
static void
_token_clear (void)
int type;
int i;
lisp_object_t *pattern;
-
+ type = -1;
+
if (lisp_type(lisp_car(*obj)) != LISP_TYPE_SYMBOL)
return 0;
lisp_object_t* obj = search_for (name);
if (obj)
{
+ if (!lisp_integer_p(lisp_car(obj)))
+ st_abort("LispReader expected type integer at token: ", name);
*i = lisp_integer(lisp_car(obj));
return true;
}
}
bool
+LispReader::read_lisp(const char* name, lisp_object_t** b)
+{
+ lisp_object_t* obj = search_for (name);
+ if (obj)
+ {
+ *b = obj;
+ return true;
+ }
+ else
+ return false;
+}
+
+bool
LispReader::read_float (const char* name, float* f)
{
lisp_object_t* obj = search_for (name);
if (obj)
{
+ if (!lisp_real_p(lisp_car(obj)) && !lisp_integer_p(lisp_car(obj)))
+ st_abort("LispReader expected type real at token: ", name);
*f = lisp_real(lisp_car(obj));
return true;
}
}
bool
+LispReader::read_string_vector (const char* name, std::vector<std::string>* vec)
+{
+ lisp_object_t* obj = search_for (name);
+ if (obj)
+ {
+ while(!lisp_nil_p(obj))
+ {
+ if (!lisp_string_p(lisp_car(obj)))
+ st_abort("LispReader expected type string at token: ", name);
+ vec->push_back(lisp_string(lisp_car(obj)));
+ obj = lisp_cdr(obj);
+ }
+ return true;
+ }
+ return false;
+}
+
+bool
+LispReader::read_int_vector (const char* name, std::vector<int>* vec)
+{
+ lisp_object_t* obj = search_for (name);
+ if (obj)
+ {
+ while(!lisp_nil_p(obj))
+ {
+ if (!lisp_integer_p(lisp_car(obj)))
+ st_abort("LispReader expected type integer at token: ", name);
+ vec->push_back(lisp_integer(lisp_car(obj)));
+ obj = lisp_cdr(obj);
+ }
+ return true;
+ }
+ return false;
+}
+
+bool
+LispReader::read_char_vector (const char* name, std::vector<char>* vec)
+{
+ lisp_object_t* obj = search_for (name);
+ if (obj)
+ {
+ while(!lisp_nil_p(obj))
+ {
+ vec->push_back(*lisp_string(lisp_car(obj)));
+ obj = lisp_cdr(obj);
+ }
+ return true;
+ }
+ return false;
+}
+
+bool
+LispReader::read_string (const char* name, std::string* str)
+{
+ lisp_object_t* obj = search_for (name);
+ if (obj)
+ {
+ if (!lisp_string_p(lisp_car(obj)))
+ st_abort("LispReader expected type string at token: ", name);
+ *str = lisp_string(lisp_car(obj));
+ return true;
+ }
+ return false;
+}
+
+bool
LispReader::read_bool (const char* name, bool* b)
{
lisp_object_t* obj = search_for (name);
if (obj)
{
+ if (!lisp_boolean_p(lisp_car(obj)))
+ st_abort("LispReader expected type bool at token: ", name);
*b = lisp_boolean(lisp_car(obj));
return true;
}
return lisp_obj;
}
+#if 0
+void mygzungetc(char c, void* file)
+{
+ gzungetc(c, file);
+}
+
+lisp_stream_t* lisp_stream_init_gzfile (lisp_stream_t *stream, gzFile file)
+{
+ return lisp_stream_init_any (stream, file, gzgetc, mygzungetc);
+}
+#endif
+
+lisp_object_t* lisp_read_from_gzfile(const char* filename)
+{
+ bool done = false;
+ lisp_object_t* root_obj = 0;
+ int chunk_size = 128 * 1024;
+ int buf_pos = 0;
+ int try_number = 1;
+ char* buf = static_cast<char*>(malloc(chunk_size));
+ assert(buf);
+
+ gzFile in = gzopen(filename, "r");
+
+ while (!done)
+ {
+ int ret = gzread(in, buf + buf_pos, chunk_size);
+ if (ret == -1)
+ {
+ free (buf);
+ assert(!"Error while reading from file");
+ }
+ else if (ret == chunk_size) // buffer got full, eof not yet there so resize
+ {
+ buf_pos = chunk_size * try_number;
+ try_number += 1;
+ buf = static_cast<char*>(realloc(buf, chunk_size * try_number));
+ assert(buf);
+ }
+ else
+ {
+ // everything fine, encountered EOF
+ done = true;
+ }
+ }
+
+ lisp_stream_t stream;
+ lisp_stream_init_string (&stream, buf);
+ root_obj = lisp_read (&stream);
+
+ free(buf);
+ gzclose(in);
+
+ return root_obj;
+}
+
+bool has_suffix(const char* data, const char* suffix)
+{
+ int suffix_len = strlen(suffix);
+ int data_len = strlen(data);
+
+ const char* data_suffix = (data + data_len - suffix_len);
+
+ if (data_suffix >= data)
+ {
+ return (strcmp(data_suffix, suffix) == 0);
+ }
+ else
+ {
+ return false;
+ }
+}
+
+lisp_object_t* lisp_read_from_file(const std::string& filename)
+{
+ lisp_stream_t stream;
+
+ if (has_suffix(filename.c_str(), ".gz"))
+ {
+ return lisp_read_from_gzfile(filename.c_str());
+#if 0
+ lisp_object_t* obj = 0;
+ gzFile in = gzopen(filename, "r");
+
+ if (in)
+ {
+ lisp_stream_init_gzfile(&stream, in);
+ obj = lisp_read(&stream);
+ gzclose(in);
+ }
+ return obj;
+#endif
+ }
+ else
+ {
+ lisp_object_t* obj = 0;
+ FILE* in = fopen(filename.c_str(), "r");
+
+ if (in)
+ {
+ lisp_stream_init_file(&stream, in);
+ obj = lisp_read(&stream);
+ fclose(in);
+ }
+
+ return obj;
+ }
+}
+
+// EOF //
projects / supertux.git / blobdiff