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lexer-rewrite rebase commit

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This commit is contained in:
BVK Chaitanya 2010-01-22 19:07:27 +05:30
parent bf86e59a76
commit 547e494f1b
25 changed files with 1214 additions and 652 deletions
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60
include/grub/script_sh.h
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@ -1,7 +1,7 @@
/* normal_parser.h */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2005,2007,2009 Free Software Foundation, Inc.
* Copyright (C) 2005,2007,2009,2010 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
@ -45,8 +45,11 @@ struct grub_script
typedef enum
{
GRUB_SCRIPT_ARG_TYPE_STR,
GRUB_SCRIPT_ARG_TYPE_VAR
GRUB_SCRIPT_ARG_TYPE_VAR,
GRUB_SCRIPT_ARG_TYPE_TEXT,
GRUB_SCRIPT_ARG_TYPE_DQVAR,
GRUB_SCRIPT_ARG_TYPE_DQSTR,
GRUB_SCRIPT_ARG_TYPE_SQSTR
} grub_script_arg_type_t;
/* A part of an argument. */
@ -121,12 +124,6 @@ struct grub_script_cmd_menuentry
/* State of the lexer as passed to the lexer. */
struct grub_lexer_param
{
/* Set to 0 when the lexer is done. */
int done;
/* State of the state machine. */
grub_parser_state_t state;
/* Function used by the lexer to get a new line when more input is
expected, but not available. */
grub_reader_getline_t getline;
@ -137,10 +134,6 @@ struct grub_lexer_param
depleted. */
int refs;
/* The character stream that has to be parsed. */
char *script;
char *newscript; /* XXX */
/* While walking through the databuffer, `record' the characters to
this other buffer. It can be used to edit the menu entry at a
later moment. */
@ -157,13 +150,32 @@ struct grub_lexer_param
/* Size of RECORDING. */
int recordlen;
/* The token that is already parsed but not yet returned. */
int tokenonhold;
/* End of file reached. */
int eof;
/* Was the last token a newline? */
int was_newline;
/* Merge multiple word tokens. */
int merge_start;
int merge_end;
/* Text of current token. */
char *text;
/* Type of text. */
grub_script_arg_type_t type;
/* Flex scanner. */
void *yyscanner;
/* Flex scanner buffer. */
void *buffer;
/* Length of current token text. */
unsigned size;
};
#define GRUB_LEXER_TOKEN_MAX 256
#define GRUB_LEXER_RECORD_INCREMENT 256
/* State of the parser as passes to the parser. */
struct grub_parser_param
{
@ -223,12 +235,16 @@ void grub_script_free (struct grub_script *script);
struct grub_script *grub_script_create (struct grub_script_cmd *cmd,
struct grub_script_mem *mem);
struct grub_lexer_param *grub_script_lexer_init (char *s,
struct grub_lexer_param *grub_script_lexer_init (struct grub_parser_param *parser,
char *script,
grub_reader_getline_t getline);
void grub_script_lexer_fini (struct grub_lexer_param *);
void grub_script_lexer_ref (struct grub_lexer_param *);
void grub_script_lexer_deref (struct grub_lexer_param *);
void grub_script_lexer_record_start (struct grub_lexer_param *);
char *grub_script_lexer_record_stop (struct grub_lexer_param *);
void grub_script_lexer_record_start (struct grub_parser_param *);
char *grub_script_lexer_record_stop (struct grub_parser_param *);
int grub_script_lexer_yywrap (struct grub_parser_param *);
void grub_script_lexer_record (struct grub_parser_param *, char *);
/* Functions to track allocated memory. */
struct grub_script_mem *grub_script_mem_record (struct grub_parser_param *state);
@ -284,7 +300,7 @@ int grub_script_function_iterate (int (*iterate) (grub_script_function_t));
int grub_script_function_call (grub_script_function_t func,
int argc, char **args);
char *
grub_script_execute_argument_to_string (struct grub_script_arg *arg);
char **
grub_script_execute_arglist_to_argv (struct grub_script_arglist *arglist);
#endif /* ! GRUB_NORMAL_PARSER_HEADER */