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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 16:29:51 +0000 |
commit | 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e (patch) | |
tree | 32451fa3cdd9321fb2591fada9891b2cb70a9cd1 /include/grub/parser.h | |
parent | Initial commit. (diff) | |
download | grub2-upstream/2.06.tar.xz grub2-upstream/2.06.zip |
Adding upstream version 2.06.upstream/2.06upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | include/grub/parser.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/include/grub/parser.h b/include/grub/parser.h new file mode 100644 index 0000000..64f9f5c --- /dev/null +++ b/include/grub/parser.h @@ -0,0 +1,96 @@ +/* parser.h - prototypes for the command line parser. */ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2005,2007,2009 Free Software Foundation, Inc. + * + * GRUB is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * GRUB is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GRUB. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef GRUB_PARSER_HEADER +#define GRUB_PARSER_HEADER 1 + +#include <grub/types.h> +#include <grub/err.h> +#include <grub/reader.h> + +/* All the states for the command line. */ +typedef enum + { + GRUB_PARSER_STATE_TEXT = 1, + GRUB_PARSER_STATE_ESC, + GRUB_PARSER_STATE_QUOTE, + GRUB_PARSER_STATE_DQUOTE, + GRUB_PARSER_STATE_VAR, + GRUB_PARSER_STATE_VARNAME, + GRUB_PARSER_STATE_VARNAME2, + GRUB_PARSER_STATE_QVAR, + GRUB_PARSER_STATE_QVARNAME, + GRUB_PARSER_STATE_QVARNAME2 + } grub_parser_state_t; + +/* A single state transition. */ +struct grub_parser_state_transition +{ + /* The state that is looked up. */ + grub_parser_state_t from_state; + + /* The next state, determined by FROM_STATE and INPUT. */ + grub_parser_state_t to_state; + + /* The input that will determine the next state from FROM_STATE. */ + char input; + + /* If set to 1, the input is valid and should be used. */ + int keep_value; +}; + +/* Determines the state following STATE, determined by C. */ +grub_parser_state_t +EXPORT_FUNC (grub_parser_cmdline_state) (grub_parser_state_t state, + char c, char *result); + +grub_err_t +EXPORT_FUNC (grub_parser_split_cmdline) (const char *cmdline, + grub_reader_getline_t getline_func, + void *getline_func_data, + int *argc, char ***argv); + +struct grub_parser +{ + /* The next parser. */ + struct grub_parser *next; + + /* The parser name. */ + const char *name; + + /* Initialize the parser. */ + grub_err_t (*init) (void); + + /* Clean up the parser. */ + grub_err_t (*fini) (void); + + grub_err_t (*parse_line) (char *line, + grub_reader_getline_t getline_func, + void *getline_func_data); +}; +typedef struct grub_parser *grub_parser_t; + +grub_err_t grub_parser_execute (char *source); + +grub_err_t +grub_rescue_parse_line (char *line, + grub_reader_getline_t getline_func, + void *getline_func_data); + +#endif /* ! GRUB_PARSER_HEADER */ |