47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
#include <stdint.h>
|
|
#include <stdio.h>
|
|
|
|
#include "ff.h"
|
|
|
|
#include "misc.h"
|
|
#include "lexer.h"
|
|
#include "lexerfatfs.h"
|
|
|
|
unichar file_buf_next_char(mp_lexer_file_buf_t *fb) {
|
|
if (fb->pos >= fb->len) {
|
|
if (fb->len < sizeof(fb->buf)) {
|
|
return MP_LEXER_CHAR_EOF;
|
|
} else {
|
|
UINT n;
|
|
f_read(&fb->fp, fb->buf, sizeof(fb->buf), &n);
|
|
if (n == 0) {
|
|
return MP_LEXER_CHAR_EOF;
|
|
}
|
|
fb->len = n;
|
|
fb->pos = 0;
|
|
}
|
|
}
|
|
return fb->buf[fb->pos++];
|
|
}
|
|
|
|
void file_buf_close(mp_lexer_file_buf_t *fb) {
|
|
f_close(&fb->fp);
|
|
}
|
|
|
|
mp_lexer_t *mp_lexer_new_from_file(const char *filename, mp_lexer_file_buf_t *fb) {
|
|
FRESULT res = f_open(&fb->fp, filename, FA_READ);
|
|
if (res != FR_OK) {
|
|
return NULL;
|
|
}
|
|
UINT n;
|
|
f_read(&fb->fp, fb->buf, sizeof(fb->buf), &n);
|
|
fb->len = n;
|
|
fb->pos = 0;
|
|
return mp_lexer_new(filename, fb, (mp_lexer_stream_next_char_t)file_buf_next_char, (mp_lexer_stream_close_t)file_buf_close);
|
|
}
|
|
|
|
mp_lexer_t *mp_import_open_file(qstr mod_name) {
|
|
printf("import not implemented\n");
|
|
return NULL;
|
|
}
|