gdb/mi/mi-parse.c - gdb
Global variables defined
Functions defined
Source code
- #include "defs.h"
- #include "mi-cmds.h"
- #include "mi-parse.h"
- #include "charset.h"
- #include <ctype.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";
- 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 (const char *args, struct mi_parse *parse)
- {
- const char *chp = args;
- int argc = 0;
- char **argv = xmalloc ((argc + 1) * sizeof (char *));
- argv[argc] = NULL;
- while (1)
- {
- char *arg;
-
- chp = skip_spaces_const (chp);
-
- switch (*chp)
- {
- case '\0':
- parse->argv = argv;
- parse->argc = argc;
- return;
- case '"':
- {
-
- int len;
- const char *start = chp + 1;
-
- chp = start;
- len = 0;
- while (*chp != '\0' && *chp != '"')
- {
- if (*chp == '\\')
- {
- chp++;
- if (mi_parse_escape (&chp) <= 0)
- {
-
- freeargv (argv);
- return;
- }
- }
- else
- chp++;
- len++;
- }
-
- if (*chp != '"')
- {
- freeargv (argv);
- return;
- }
-
- if (chp[1] != '\0' && !isspace (chp[1]))
- {
- freeargv (argv);
- return;
- }
-
- arg = xmalloc ((len + 1) * sizeof (char));
- chp = start;
- len = 0;
- while (*chp != '\0' && *chp != '"')
- {
- if (*chp == '\\')
- {
- chp++;
- arg[len] = mi_parse_escape (&chp);
- }
- else
- arg[len] = *chp++;
- len++;
- }
- arg[len] = '\0';
- chp++;
- break;
- }
- default:
- {
-
- int len;
- const char *start = chp;
- while (*chp != '\0' && !isspace (*chp))
- {
- chp++;
- }
- len = chp - start;
- arg = xmalloc ((len + 1) * sizeof (char));
- strncpy (arg, start, len);
- arg[len] = '\0';
- break;
- }
- }
-
- argv = xrealloc (argv, (argc + 2) * sizeof (char *));
- argv[argc++] = arg;
- argv[argc] = NULL;
- }
- }
- void
- mi_parse_free (struct mi_parse *parse)
- {
- if (parse == NULL)
- return;
- if (parse->command != NULL)
- xfree (parse->command);
- if (parse->token != NULL)
- xfree (parse->token);
- if (parse->args != NULL)
- xfree (parse->args);
- if (parse->argv != NULL)
- freeargv (parse->argv);
- xfree (parse);
- }
- static void
- mi_parse_cleanup (void *arg)
- {
- mi_parse_free (arg);
- }
- struct mi_parse *
- mi_parse (const char *cmd, char **token)
- {
- 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);
-
- cmd = skip_spaces_const (cmd);
-
- for (chp = cmd; *chp >= '0' && *chp <= '9'; chp++)
- ;
- *token = xmalloc (chp - cmd + 1);
- memcpy (*token, cmd, (chp - cmd));
- (*token)[chp - cmd] = '\0';
-
- if (*chp != '-')
- {
- chp = skip_spaces_const (chp);
- parse->command = xstrdup (chp);
- parse->op = CLI_COMMAND;
- discard_cleanups (cleanup);
- return parse;
- }
-
- {
- const char *tmp = chp + 1;
- for (; *chp && !isspace (*chp); chp++)
- ;
- parse->command = xmalloc (chp - tmp + 1);
- memcpy (parse->command, tmp, chp - tmp);
- parse->command[chp - tmp] = '\0';
- }
-
- parse->cmd = mi_lookup (parse->command);
- if (parse->cmd == NULL)
- throw_error (UNDEFINED_COMMAND_ERROR,
- _("Undefined MI command: %s"), parse->command);
-
- chp = skip_spaces_const (chp);
-
- for (;;)
- {
- 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;
- size_t ls = sizeof ("--language ") - 1;
- if (strncmp (chp, "--all ", as) == 0)
- {
- parse->all = 1;
- chp += as;
- }
-
- 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"));
- chp += ts;
- 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"));
- chp += fs;
- 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"), option);
- chp = skip_spaces_const (chp);
- }
-
- if (parse->cmd->argv_func != NULL)
- {
- mi_parse_argv (chp, parse);
- if (parse->argv == NULL)
- error (_("Problem parsing arguments: %s %s"), parse->command, chp);
- }
- FIXME
-
- if (parse->cmd->cli.cmd != NULL)
- parse->args = xstrdup (chp);
- discard_cleanups (cleanup);
-
- 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);
- }