/* MI Command Set - MI parser.
- Copyright (C) 2000, 2001, 2002, 2007, 2008, 2009, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 2000-2014 Free Software Foundation, Inc.
Contributed by Cygnus Solutions (a Red Hat company).
#include "defs.h"
#include "mi-cmds.h"
#include "mi-parse.h"
+#include "charset.h"
#include <ctype.h>
-#include "gdb_string.h"
+#include "cli/cli-utils.h"
+#include "language.h"
+
+static const char mi_no_values[] = "--no-values";
+static const char mi_simple_values[] = "--simple-values";
+static const char mi_all_values[] = "--all-values";
+
+/* Like parse_escape, but leave the results as a host char, not a
+ target char. */
+
+static int
+mi_parse_escape (const char **string_ptr)
+{
+ int c = *(*string_ptr)++;
+
+ switch (c)
+ {
+ case '\n':
+ return -2;
+ case 0:
+ (*string_ptr)--;
+ return 0;
+
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ {
+ int i = host_hex_value (c);
+ int count = 0;
+
+ while (++count < 3)
+ {
+ c = (**string_ptr);
+ if (isdigit (c) && c != '8' && c != '9')
+ {
+ (*string_ptr)++;
+ i *= 8;
+ i += host_hex_value (c);
+ }
+ else
+ {
+ break;
+ }
+ }
+ return i;
+ }
+
+ case 'a':
+ c = '\a';
+ break;
+ case 'b':
+ c = '\b';
+ break;
+ case 'f':
+ c = '\f';
+ break;
+ case 'n':
+ c = '\n';
+ break;
+ case 'r':
+ c = '\r';
+ break;
+ case 't':
+ c = '\t';
+ break;
+ case 'v':
+ c = '\v';
+ break;
+
+ default:
+ break;
+ }
+
+ return c;
+}
static void
-mi_parse_argv (char *args, struct mi_parse *parse)
+mi_parse_argv (const char *args, struct mi_parse *parse)
{
- char *chp = args;
+ const char *chp = args;
int argc = 0;
char **argv = xmalloc ((argc + 1) * sizeof (char *));
+
argv[argc] = NULL;
while (1)
{
char *arg;
- /* skip leading white space */
- while (isspace (*chp))
- chp++;
+
+ /* Skip leading white space. */
+ chp = skip_spaces_const (chp);
/* Three possibilities: EOF, quoted string, or other text. */
switch (*chp)
{
return;
case '"':
{
- /* A quoted string. */
+ /* A quoted string. */
int len;
- char *start = chp + 1;
- /* Determine the buffer size. */
+ const char *start = chp + 1;
+
+ /* Determine the buffer size. */
chp = start;
len = 0;
while (*chp != '\0' && *chp != '"')
if (*chp == '\\')
{
chp++;
- if (parse_escape (&chp) <= 0)
+ if (mi_parse_escape (&chp) <= 0)
{
- /* Do not allow split lines or "\000" */
+ /* Do not allow split lines or "\000". */
freeargv (argv);
return;
}
chp++;
len++;
}
- /* Insist on a closing quote. */
+ /* Insist on a closing quote. */
if (*chp != '"')
{
freeargv (argv);
return;
}
- /* Insist on trailing white space. */
+ /* Insist on trailing white space. */
if (chp[1] != '\0' && !isspace (chp[1]))
{
freeargv (argv);
return;
}
- /* create the buffer. */
+ /* Create the buffer and copy characters in. */
arg = xmalloc ((len + 1) * sizeof (char));
- /* And copy the characters in. */
chp = start;
len = 0;
while (*chp != '\0' && *chp != '"')
if (*chp == '\\')
{
chp++;
- arg[len] = parse_escape (&chp);
+ arg[len] = mi_parse_escape (&chp);
}
else
arg[len] = *chp++;
len++;
}
arg[len] = '\0';
- chp++; /* that closing quote. */
+ chp++; /* That closing quote. */
break;
}
default:
{
- /* An unquoted string. Accumulate all non blank
- characters into a buffer. */
+ /* An unquoted string. Accumulate all non-blank
+ characters into a buffer. */
int len;
- char *start = chp;
+ const char *start = chp;
+
while (*chp != '\0' && !isspace (*chp))
{
chp++;
break;
}
}
- /* Append arg to argv. */
+ /* Append arg to argv. */
argv = xrealloc (argv, (argc + 2) * sizeof (char *));
argv[argc++] = arg;
argv[argc] = NULL;
}
}
-
void
mi_parse_free (struct mi_parse *parse)
{
xfree (parse);
}
+/* A cleanup that calls mi_parse_free. */
+
+static void
+mi_parse_cleanup (void *arg)
+{
+ mi_parse_free (arg);
+}
struct mi_parse *
-mi_parse (char *cmd)
+mi_parse (const char *cmd, char **token)
{
- char *chp;
- struct mi_parse *parse = XMALLOC (struct mi_parse);
+ const char *chp;
+ struct mi_parse *parse = XNEW (struct mi_parse);
+ struct cleanup *cleanup;
+
memset (parse, 0, sizeof (*parse));
+ parse->all = 0;
+ parse->thread_group = -1;
parse->thread = -1;
parse->frame = -1;
+ parse->language = language_unknown;
+
+ cleanup = make_cleanup (mi_parse_cleanup, parse);
- /* Before starting, skip leading white space. */
- while (isspace (*cmd))
- cmd++;
+ /* Before starting, skip leading white space. */
+ cmd = skip_spaces_const (cmd);
- /* Find/skip any token and then extract it. */
+ /* Find/skip any token and then extract it. */
for (chp = cmd; *chp >= '0' && *chp <= '9'; chp++)
;
- parse->token = xmalloc ((chp - cmd + 1) * sizeof (char *));
- memcpy (parse->token, cmd, (chp - cmd));
- parse->token[chp - cmd] = '\0';
+ *token = xmalloc (chp - cmd + 1);
+ memcpy (*token, cmd, (chp - cmd));
+ (*token)[chp - cmd] = '\0';
- /* This wasn't a real MI command. Return it as a CLI_COMMAND. */
+ /* This wasn't a real MI command. Return it as a CLI_COMMAND. */
if (*chp != '-')
{
- while (isspace (*chp))
- chp++;
+ chp = skip_spaces_const (chp);
parse->command = xstrdup (chp);
parse->op = CLI_COMMAND;
+
+ discard_cleanups (cleanup);
+
return parse;
}
- /* Extract the command. */
+ /* Extract the command. */
{
- char *tmp = chp + 1; /* discard ``-'' */
+ const char *tmp = chp + 1; /* discard ``-'' */
+
for (; *chp && !isspace (*chp); chp++)
;
- parse->command = xmalloc ((chp - tmp + 1) * sizeof (char *));
+ parse->command = xmalloc (chp - tmp + 1);
memcpy (parse->command, tmp, chp - tmp);
parse->command[chp - tmp] = '\0';
}
- /* Find the command in the MI table. */
+ /* Find the command in the MI table. */
parse->cmd = mi_lookup (parse->command);
if (parse->cmd == NULL)
- {
- /* FIXME: This should be a function call. */
- fprintf_unfiltered
- (raw_stdout,
- "%s^error,msg=\"Undefined MI command: %s\"\n",
- parse->token, parse->command);
- mi_parse_free (parse);
- return NULL;
- }
+ throw_error (UNDEFINED_COMMAND_ERROR,
+ _("Undefined MI command: %s"), parse->command);
- /* Skip white space following the command. */
- while (isspace (*chp))
- chp++;
+ /* Skip white space following the command. */
+ chp = skip_spaces_const (chp);
/* Parse the --thread and --frame options, if present. At present,
- some important commands, like '-break-*' are implemented by forwarding
- to the CLI layer directly. We want to parse --thread and --frame
- here, so as not to leave those option in the string that will be passed
- to CLI. */
+ some important commands, like '-break-*' are implemented by
+ forwarding to the CLI layer directly. We want to parse --thread
+ and --frame here, so as not to leave those option in the string
+ that will be passed to CLI.
+
+ Same for the --language option. */
+
for (;;)
{
- char *start = chp;
+ const char *option;
+ size_t as = sizeof ("--all ") - 1;
+ size_t tgs = sizeof ("--thread-group ") - 1;
size_t ts = sizeof ("--thread ") - 1;
size_t fs = sizeof ("--frame ") - 1;
- if (strncmp (chp, "--thread ", ts) == 0)
+ size_t ls = sizeof ("--language ") - 1;
+
+ if (strncmp (chp, "--all ", as) == 0)
+ {
+ parse->all = 1;
+ chp += as;
+ }
+ /* See if --all is the last token in the input. */
+ if (strcmp (chp, "--all") == 0)
+ {
+ parse->all = 1;
+ chp += strlen (chp);
+ }
+ if (strncmp (chp, "--thread-group ", tgs) == 0)
+ {
+ char *endp;
+
+ option = "--thread-group";
+ if (parse->thread_group != -1)
+ error (_("Duplicate '--thread-group' option"));
+ chp += tgs;
+ if (*chp != 'i')
+ error (_("Invalid thread group id"));
+ chp += 1;
+ parse->thread_group = strtol (chp, &endp, 10);
+ chp = endp;
+ }
+ else if (strncmp (chp, "--thread ", ts) == 0)
{
+ char *endp;
+
+ option = "--thread";
if (parse->thread != -1)
- error ("Duplicate '--thread' option");
+ error (_("Duplicate '--thread' option"));
chp += ts;
- parse->thread = strtol (chp, &chp, 10);
+ parse->thread = strtol (chp, &endp, 10);
+ chp = endp;
}
else if (strncmp (chp, "--frame ", fs) == 0)
{
+ char *endp;
+
+ option = "--frame";
if (parse->frame != -1)
- error ("Duplicate '--frame' option");
+ error (_("Duplicate '--frame' option"));
chp += fs;
- parse->frame = strtol (chp, &chp, 10);
+ parse->frame = strtol (chp, &endp, 10);
+ chp = endp;
+ }
+ else if (strncmp (chp, "--language ", ls) == 0)
+ {
+ char *lang_name;
+ struct cleanup *old_chain;
+
+ option = "--language";
+ chp += ls;
+ lang_name = extract_arg_const (&chp);
+ old_chain = make_cleanup (xfree, lang_name);
+
+ parse->language = language_enum (lang_name);
+ if (parse->language == language_unknown
+ || parse->language == language_auto)
+ error (_("Invalid --language argument: %s"), lang_name);
+
+ do_cleanups (old_chain);
}
else
break;
if (*chp != '\0' && !isspace (*chp))
- error ("Invalid value for the '%s' option",
- start[2] == 't' ? "--thread" : "--frame");
- while (isspace (*chp))
- chp++;
+ error (_("Invalid value for the '%s' option"), option);
+ chp = skip_spaces_const (chp);
}
/* For new argv commands, attempt to return the parsed argument
- list. */
+ list. */
if (parse->cmd->argv_func != NULL)
{
mi_parse_argv (chp, parse);
if (parse->argv == NULL)
- {
- /* FIXME: This should be a function call. */
- fprintf_unfiltered
- (raw_stdout,
- "%s^error,msg=\"Problem parsing arguments: %s %s\"\n",
- parse->token, parse->command, chp);
- mi_parse_free (parse);
- return NULL;
- }
+ error (_("Problem parsing arguments: %s %s"), parse->command, chp);
}
/* FIXME: DELETE THIS */
if (parse->cmd->cli.cmd != NULL)
parse->args = xstrdup (chp);
- /* Fully parsed. */
+ discard_cleanups (cleanup);
+
+ /* Fully parsed, flag as an MI command. */
parse->op = MI_COMMAND;
return parse;
}
+
+enum print_values
+mi_parse_print_values (const char *name)
+{
+ if (strcmp (name, "0") == 0
+ || strcmp (name, mi_no_values) == 0)
+ return PRINT_NO_VALUES;
+ else if (strcmp (name, "1") == 0
+ || strcmp (name, mi_all_values) == 0)
+ return PRINT_ALL_VALUES;
+ else if (strcmp (name, "2") == 0
+ || strcmp (name, mi_simple_values) == 0)
+ return PRINT_SIMPLE_VALUES;
+ else
+ error (_("Unknown value for PRINT_VALUES: must be: \
+0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
+ mi_no_values, mi_all_values, mi_simple_values);
+}
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