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#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <emacs-module.h>
#include "helper.h"
int plugin_is_GPL_compatible = 3;
emacs_value
rep_new_parser
(emacs_env *env, ptrdiff_t narg, emacs_value *args, void *data)
{
char *buffer = NULL;
ptrdiff_t len = 0;
emacs_value error_data[1];
unsigned char error_vec_len[8] = { 0 };
unsigned char error_vec_cap[8] = { 0 };
struct SignedVec error_vec = { 0 };
error_vec.len = error_vec_len;
error_vec.capacity = error_vec_cap;
env->copy_string_contents(env, *args, NULL, &len);
len++;
buffer = malloc(sizeof(char) * len);
if (buffer == NULL) return env->intern(env, "nil");
env->copy_string_contents(env, *args, buffer, &len);
struct parser *new_parser_result = new_parser(buffer, &error_vec);
free(buffer);
uint64_t error_length = from_big_endian(error_vec.len);
if (error_length) {
error_data[0] =
env->make_string(env, error_vec.data, (ptrdiff_t) error_length);
clean_signed(&error_vec, 4);
env->non_local_exit_signal
(env, env->intern(env, "error"),
env->funcall(env, env->intern(env, "list"),
1, error_data));
return env->intern(env, "nil");
}
return env->make_user_ptr(env, clean_parser, new_parser_result);
}
emacs_value
rep_parser_recognize
(emacs_env *env, ptrdiff_t narg, emacs_value *args, void *data)
{
struct parser *parser = env->get_user_ptr(env, *args);
if (env->non_local_exit_check(env) != emacs_funcall_exit_return)
return env->intern(env, "nil");
unsigned char *buffer = NULL;
ptrdiff_t len = 0;
emacs_value error_data[1];
if (!env->eq(env,
env->type_of(env, *(args+1)),
env->intern(env, "vector"))) {
error_data[0] = env->make_string
(env, "INPUT should be a vector of integers", 36);
env->non_local_exit_signal
(env, env->intern(env, "wrong-type-argument"),
env->funcall(env, env->intern(env, "list"),
1, error_data));
return env->intern(env, "nil");
}
len = env->vec_size(env, *(args+1));
buffer = malloc(sizeof(unsigned char) * len * 8);
if (buffer == NULL) {
error_data[0] = env->make_string(env, "out of memory", 13);
env->non_local_exit_signal
(env, env->intern(env, "error"),
env->funcall(env, env->intern(env, "list"),
1, error_data));
return env->intern(env, "nil");
}
for (ptrdiff_t i = 0; i < len; i++) {
emacs_value element = env->vec_get(env, *(args+1), i);
to_big_endian((uint64_t) env->extract_integer(env, element),
buffer + 8 * i);
}
if (env->non_local_exit_check(env) != emacs_funcall_exit_return) {
free(buffer);
return env->intern(env, "nil");
}
unsigned char error_vec_len[8] = { 0 };
unsigned char error_vec_cap[8] = { 0 };
struct SignedVec error_vec = { 0 };
error_vec.len = error_vec_len;
error_vec.capacity = error_vec_cap;
unsigned char input_len[8] = { 0 };
to_big_endian((uint64_t) len * 8, input_len);
struct UnsignedVec input_vec = (struct UnsignedVec)
{ input_len, NULL, buffer };
int result =
parser_recognize
(parser, &input_vec, &error_vec, (unsigned char) 1);
free(buffer);
uint64_t error_length = from_big_endian(error_vec.len);
if (error_length) {
error_data[0] =
env->make_string(env, error_vec.data, (ptrdiff_t) error_length);
clean_signed(&error_vec, 4);
env->non_local_exit_signal
(env, env->intern(env, "error"),
env->funcall(env, env->intern(env, "list"),
1, error_data));
return env->intern(env, "nil");
}
return (result) ? env->intern(env, "t") : env->intern(env, "nil");
}
void
clean_forest(void *ptr)
{
clean_unsigned((struct UnsignedVec *) ptr, 15);
}
emacs_value
rep_parser_parse
(emacs_env *env, ptrdiff_t narg, emacs_value *args, void *data)
{
struct parser *parser = env->get_user_ptr(env, *args);
if (env->non_local_exit_check(env) != emacs_funcall_exit_return)
return env->intern(env, "nil");
unsigned char *buffer = NULL;
ptrdiff_t len = 0;
emacs_value error_data[1];
if (!env->eq(env,
env->type_of(env, *(args+1)),
env->intern(env, "vector"))) {
error_data[0] = env->make_string
(env, "INPUT should be a vector of integers", 36);
env->non_local_exit_signal
(env, env->intern(env, "wrong-type-argument"),
env->funcall(env, env->intern(env, "list"),
1, error_data));
return env->intern(env, "nil");
}
len = env->vec_size(env, *(args+1));
buffer = malloc(sizeof(char) * len * 8);
if (buffer == NULL) {
error_data[0] = env->make_string(env, "out of memory", 13);
env->non_local_exit_signal
(env, env->intern(env, "error"),
env->funcall(env, env->intern(env, "list"),
1, error_data));
return env->intern(env, "nil");
}
for (ptrdiff_t i = 0; i < len; i++) {
emacs_value element = env->vec_get(env, *(args+1), i);
to_big_endian((uint64_t) env->extract_integer(env, element),
buffer + 8 * i);
}
if (env->non_local_exit_check(env) != emacs_funcall_exit_return) {
free(buffer);
return env->intern(env, "nil");
}
unsigned char error_vec_len[8] = { 0 };
unsigned char error_vec_cap[8] = { 0 };
struct SignedVec error_vec = { 0 };
error_vec.len = error_vec_len;
error_vec.capacity = error_vec_cap;
unsigned char input_len[8] = { 0 };
to_big_endian((uint64_t) len * 8, input_len);
struct UnsignedVec input_vec = (struct UnsignedVec)
{ input_len, NULL, buffer };
struct UnsignedVec *result =
parser_parse(parser, &input_vec, &error_vec, (unsigned char) 1);
free(buffer);
uint64_t error_length = from_big_endian(error_vec.len);
if (error_length) {
error_data[0] =
env->make_string(env, error_vec.data, (ptrdiff_t) error_length);
clean_signed(&error_vec, 4);
env->non_local_exit_signal
(env, env->intern(env, "error"),
env->funcall(env, env->intern(env, "list"),
1, error_data));
return env->intern(env, "nil");
}
if (result) {
return env->make_user_ptr(env, clean_forest, result);
}
return env->intern(env, "nil");
}
int
emacs_module_init(struct emacs_runtime *ert)
{
emacs_env *env = ert->get_environment(ert);
unsigned char emacs_version = 0;
if ((unsigned long) env->size >= sizeof(struct emacs_env_27))
emacs_version = 27;
else if ((unsigned long) env->size >= sizeof(struct emacs_env_26))
emacs_version = 26;
else if ((unsigned long) env->size >= sizeof(struct emacs_env_25))
emacs_version = 25;
else return 2;
emacs_value newfunc = env->make_function
(env, 1, 1, rep_new_parser,
"Create a new parser from the grammar string GRAMMAR_STRING."
"\n\n\(fn grammar_string)",
NULL);
env->funcall
(env, env->intern(env, "defalias"), 2,
(emacs_value[]){ env->intern(env, "rep-new-parser"), newfunc });
emacs_value recognizefunc = env->make_function
(env, 2, 2, rep_parser_recognize,
"Recognize an INPUT using PARSER."
"\n\n\(fn parser INPUT)",
NULL);
env->funcall(env, env->intern(env, "defalias"), 2,
(emacs_value[])
{
env->intern(env, "rep-recognize"), recognizefunc
});
emacs_value parsefunc = env->make_function
(env, 2, 2, rep_parser_parse,
"Parse an INPUT using PARSER."
"\n\n\(fn parser input)",
NULL);
env->funcall(env, env->intern(env, "defalias"), 2,
(emacs_value[])
{
env->intern(env, "rep-parse"), parsefunc
});
env->funcall(env, env->intern(env, "provide"),
1, (emacs_value[]){ env->intern(env, "rep") });
return 0;
}
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