* kern/parser.c: Indented.
This commit is contained in:
Vladimir 'phcoder' Serbinenko
parent
ed0e3d30cd
commit
f84afb2775
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@ -1,3 +1,7 @@
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2010-03-18 Vladimir Serbinenko <phcoder@gmail.com>
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* kern/parser.c: Indented.
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2010-03-17 Vladimir Serbinenko <phcoder@gmail.com>
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* term/i386/pc/vesafb.c: Removed (orphaned, deprecated and broken).
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140
kern/parser.c
140
kern/parser.c
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@ -26,32 +26,31 @@
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/* All the possible state transitions on the command line. If a
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transition can not be found, it is assumed that there is no
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transition and keep_value is assumed to be 1. */
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static struct grub_parser_state_transition state_transitions[] =
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{
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{ GRUB_PARSER_STATE_TEXT, GRUB_PARSER_STATE_QUOTE, '\'', 0},
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{ GRUB_PARSER_STATE_TEXT, GRUB_PARSER_STATE_DQUOTE, '\"', 0},
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{ GRUB_PARSER_STATE_TEXT, GRUB_PARSER_STATE_VAR, '$', 0},
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{ GRUB_PARSER_STATE_TEXT, GRUB_PARSER_STATE_ESC, '\\', 0},
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static struct grub_parser_state_transition state_transitions[] = {
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{GRUB_PARSER_STATE_TEXT, GRUB_PARSER_STATE_QUOTE, '\'', 0},
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{GRUB_PARSER_STATE_TEXT, GRUB_PARSER_STATE_DQUOTE, '\"', 0},
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{GRUB_PARSER_STATE_TEXT, GRUB_PARSER_STATE_VAR, '$', 0},
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{GRUB_PARSER_STATE_TEXT, GRUB_PARSER_STATE_ESC, '\\', 0},
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{ GRUB_PARSER_STATE_ESC, GRUB_PARSER_STATE_TEXT, 0, 1},
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{GRUB_PARSER_STATE_ESC, GRUB_PARSER_STATE_TEXT, 0, 1},
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{ GRUB_PARSER_STATE_QUOTE, GRUB_PARSER_STATE_TEXT, '\'', 0},
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{GRUB_PARSER_STATE_QUOTE, GRUB_PARSER_STATE_TEXT, '\'', 0},
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{ GRUB_PARSER_STATE_DQUOTE, GRUB_PARSER_STATE_TEXT, '\"', 0},
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{ GRUB_PARSER_STATE_DQUOTE, GRUB_PARSER_STATE_QVAR, '$', 0},
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{GRUB_PARSER_STATE_DQUOTE, GRUB_PARSER_STATE_TEXT, '\"', 0},
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{GRUB_PARSER_STATE_DQUOTE, GRUB_PARSER_STATE_QVAR, '$', 0},
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{ GRUB_PARSER_STATE_VAR, GRUB_PARSER_STATE_VARNAME2, '{', 0},
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{ GRUB_PARSER_STATE_VAR, GRUB_PARSER_STATE_VARNAME, 0, 1},
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{ GRUB_PARSER_STATE_VARNAME, GRUB_PARSER_STATE_TEXT, ' ', 1},
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{ GRUB_PARSER_STATE_VARNAME2, GRUB_PARSER_STATE_TEXT, '}', 0},
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{GRUB_PARSER_STATE_VAR, GRUB_PARSER_STATE_VARNAME2, '{', 0},
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{GRUB_PARSER_STATE_VAR, GRUB_PARSER_STATE_VARNAME, 0, 1},
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{GRUB_PARSER_STATE_VARNAME, GRUB_PARSER_STATE_TEXT, ' ', 1},
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{GRUB_PARSER_STATE_VARNAME2, GRUB_PARSER_STATE_TEXT, '}', 0},
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{ GRUB_PARSER_STATE_QVAR, GRUB_PARSER_STATE_QVARNAME2, '{', 0},
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{ GRUB_PARSER_STATE_QVAR, GRUB_PARSER_STATE_QVARNAME, 0, 1},
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{ GRUB_PARSER_STATE_QVARNAME, GRUB_PARSER_STATE_TEXT, '\"', 0},
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{ GRUB_PARSER_STATE_QVARNAME, GRUB_PARSER_STATE_DQUOTE, ' ', 1},
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{ GRUB_PARSER_STATE_QVARNAME2, GRUB_PARSER_STATE_DQUOTE, '}', 0},
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{GRUB_PARSER_STATE_QVAR, GRUB_PARSER_STATE_QVARNAME2, '{', 0},
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{GRUB_PARSER_STATE_QVAR, GRUB_PARSER_STATE_QVARNAME, 0, 1},
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{GRUB_PARSER_STATE_QVARNAME, GRUB_PARSER_STATE_TEXT, '\"', 0},
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{GRUB_PARSER_STATE_QVARNAME, GRUB_PARSER_STATE_DQUOTE, ' ', 1},
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{GRUB_PARSER_STATE_QVARNAME2, GRUB_PARSER_STATE_DQUOTE, '}', 0},
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{ 0, 0, 0, 0}
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{0, 0, 0, 0}
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};
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@ -74,17 +73,17 @@ grub_parser_cmdline_state (grub_parser_state_t state, char c, char *result)
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if (transition->input == c)
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break;
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if (transition->input == ' ' && ! grub_isalpha (c)
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&& ! grub_isdigit (c) && c != '_')
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if (transition->input == ' ' && !grub_isalpha (c)
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&& !grub_isdigit (c) && c != '_')
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break;
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/* A less perfect match was found, use this one if no exact
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match can be found. */
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match can be found. */
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if (transition->input == 0)
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break;
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}
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if (! transition->from_state)
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if (!transition->from_state)
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transition = &default_transition;
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if (transition->keep_value)
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@ -113,43 +112,44 @@ grub_parser_split_cmdline (const char *cmdline, grub_reader_getline_t getline,
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auto int check_varstate (grub_parser_state_t s);
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int check_varstate (grub_parser_state_t s)
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{
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return (s == GRUB_PARSER_STATE_VARNAME
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|| s == GRUB_PARSER_STATE_VARNAME2
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|| s == GRUB_PARSER_STATE_QVARNAME
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|| s == GRUB_PARSER_STATE_QVARNAME2);
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}
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{
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return (s == GRUB_PARSER_STATE_VARNAME
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|| s == GRUB_PARSER_STATE_VARNAME2
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|| s == GRUB_PARSER_STATE_QVARNAME
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|| s == GRUB_PARSER_STATE_QVARNAME2);
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}
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auto void add_var (grub_parser_state_t newstate);
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void add_var (grub_parser_state_t newstate)
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{
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char *val;
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{
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char *val;
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/* Check if a variable was being read in and the end of the name
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was reached. */
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if (! (check_varstate (state) && !check_varstate (newstate)))
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return;
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/* Check if a variable was being read in and the end of the name
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was reached. */
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if (!(check_varstate (state) && !check_varstate (newstate)))
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return;
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*(vp++) = '\0';
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val = grub_env_get (varname);
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vp = varname;
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if (! val)
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return;
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*(vp++) = '\0';
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val = grub_env_get (varname);
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vp = varname;
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if (!val)
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return;
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/* Insert the contents of the variable in the buffer. */
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for (; *val; val++)
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*(bp++) = *val;
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}
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/* Insert the contents of the variable in the buffer. */
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for (; *val; val++)
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*(bp++) = *val;
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}
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*argc = 0;
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do
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{
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if (! rd || !*rd)
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if (!rd || !*rd)
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{
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if (getline)
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getline (&rd, 1);
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else break;
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else
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break;
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}
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if (!rd)
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@ -190,7 +190,8 @@ grub_parser_split_cmdline (const char *cmdline, grub_reader_getline_t getline,
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}
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state = newstate;
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}
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} while (state != GRUB_PARSER_STATE_TEXT && !check_varstate (state));
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}
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while (state != GRUB_PARSER_STATE_TEXT && !check_varstate (state));
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/* A special case for when the last character was part of a
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variable. */
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@ -204,12 +205,12 @@ grub_parser_split_cmdline (const char *cmdline, grub_reader_getline_t getline,
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/* Reserve memory for the return values. */
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args = grub_malloc (bp - buffer);
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if (! args)
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if (!args)
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return grub_errno;
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grub_memcpy (args, buffer, bp - buffer);
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*argv = grub_malloc (sizeof (char *) * (*argc + 1));
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if (! *argv)
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if (!*argv)
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{
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grub_free (args);
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return grub_errno;
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@ -229,35 +230,34 @@ grub_parser_split_cmdline (const char *cmdline, grub_reader_getline_t getline,
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return 0;
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}
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struct grub_handler_class grub_parser_class =
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{
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.name = "parser"
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};
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struct grub_handler_class grub_parser_class = {
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.name = "parser"
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};
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grub_err_t
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grub_parser_execute (char *source)
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{
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auto grub_err_t getline (char **line, int cont);
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grub_err_t getline (char **line, int cont __attribute__ ((unused)))
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{
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char *p;
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{
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char *p;
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if (! source)
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{
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*line = 0;
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return 0;
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}
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if (!source)
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{
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*line = 0;
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return 0;
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}
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p = grub_strchr (source, '\n');
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if (p)
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*p = 0;
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p = grub_strchr (source, '\n');
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if (p)
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*p = 0;
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*line = grub_strdup (source);
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if (p)
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*p = '\n';
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source = p ? p + 1 : 0;
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return 0;
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}
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*line = grub_strdup (source);
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if (p)
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*p = '\n';
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source = p ? p + 1 : 0;
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return 0;
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}
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while (source)
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{
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