diff options
Diffstat (limited to 'gdb/cli/cli-decode.c')
| -rw-r--r-- | gdb/cli/cli-decode.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/gdb/cli/cli-decode.c b/gdb/cli/cli-decode.c index 4fbbfcb..2c52922 100644 --- a/gdb/cli/cli-decode.c +++ b/gdb/cli/cli-decode.c @@ -23,6 +23,7 @@ #include "cli/cli-cmds.h" #include "cli/cli-decode.h" #include "cli/cli-style.h" +#include "cli/cli-utils.h" #include <optional> /* Prototypes for local functions. */ @@ -740,6 +741,87 @@ add_setshow_enum_cmd (const char *name, command_class theclass, } /* See cli-decode.h. */ + +void +complete_on_color (completion_tracker &tracker, + const char *text, const char *word) +{ + complete_on_enum (tracker, ui_file_style::basic_color_enums.data (), + text, word); + if (*text == '\0') + { + /* Convenience to let the user know what the option + can accept. Note there's no common prefix between + the strings on purpose, so that complete_on_enum doesn't do + a partial match. */ + tracker.add_completion (make_unique_xstrdup ("NUMBER")); + tracker.add_completion (make_unique_xstrdup ("#RRGGBB")); + } +} + +/* Completer used in color commands. */ + +static void +color_completer (struct cmd_list_element *ignore, + completion_tracker &tracker, + const char *text, const char *word) +{ + complete_on_color (tracker, text, word); +} + + +/* Add element named NAME to command list LIST (the list for set or + some sublist thereof). CLASS is as in add_cmd. VAR is address + of the variable which will contain the color. */ + +set_show_commands +add_setshow_color_cmd (const char *name, + enum command_class theclass, + ui_file_style::color *var, + const char *set_doc, + const char *show_doc, + const char *help_doc, + cmd_func_ftype *set_func, + show_value_ftype *show_func, + struct cmd_list_element **set_list, + struct cmd_list_element **show_list) +{ + set_show_commands commands = add_setshow_cmd_full<ui_file_style::color> + (name, theclass, var_color, var, + set_doc, show_doc, help_doc, + nullptr, nullptr, set_func, show_func, + set_list, show_list); + + set_cmd_completer (commands.set, color_completer); + + return commands; +} + +/* Same as above but using a getter and a setter function instead of a pointer + to a global storage buffer. */ + +set_show_commands +add_setshow_color_cmd (const char *name, command_class theclass, + const char *set_doc, const char *show_doc, + const char *help_doc, + setting_func_types<ui_file_style::color>::set set_func, + setting_func_types<ui_file_style::color>::get get_func, + show_value_ftype *show_func, + cmd_list_element **set_list, + cmd_list_element **show_list) +{ + auto cmds = add_setshow_cmd_full<ui_file_style::color> + (name, theclass, var_color, nullptr, + set_doc, show_doc, help_doc, + set_func, get_func, nullptr, show_func, + set_list, show_list); + + set_cmd_completer (cmds.set, color_completer); + + return cmds; +} + +/* See cli-decode.h. */ const char * const auto_boolean_enums[] = { "on", "off", "auto", NULL }; /* Add an auto-boolean command named NAME to both the set and show @@ -2756,3 +2838,95 @@ cli_user_command_p (struct cmd_list_element *cmd) { return cmd->theclass == class_user && cmd->func == do_simple_func; } + +/* See cli-decode.h. */ + +ui_file_style::color +parse_cli_var_color (const char **args) +{ + /* Do a "set" command. ARG is nullptr if no argument, or the + text of the argument. */ + + if (args == nullptr || *args == nullptr || **args == '\0') + { + std::string msg; + + for (size_t i = 0; ui_file_style::basic_color_enums[i]; ++i) + { + msg.append ("\""); + msg.append (ui_file_style::basic_color_enums[i]); + msg.append ("\", "); + } + + error (_("Requires an argument. Valid arguments are %sinteger from -1 " + "to 255 or an RGB hex triplet in a format #RRGGBB"), + msg.c_str ()); + } + + const char *p = skip_to_space (*args); + size_t len = p - *args; + + int nmatches = 0; + ui_file_style::basic_color match = ui_file_style::NONE; + for (int i = 0; ui_file_style::basic_color_enums[i]; ++i) + if (strncmp (*args, ui_file_style::basic_color_enums[i], len) == 0) + { + match = static_cast<ui_file_style::basic_color> (i - 1); + if (ui_file_style::basic_color_enums[i][len] == '\0') + { + nmatches = 1; + break; /* Exact match. */ + } + else + nmatches++; + } + + if (nmatches == 1) + { + *args += len; + return ui_file_style::color (match); + } + + if (nmatches > 1) + error (_("Ambiguous item \"%.*s\"."), (int) len, *args); + + if (**args != '#') + { + ULONGEST num = get_ulongest (args); + if (num > 255) + error (_("integer %s out of range"), pulongest (num)); + return ui_file_style::color (color_space::XTERM_256COLOR, + static_cast<int> (num)); + } + + /* Try to parse #RRGGBB string. */ + if (len != 7) + error_no_arg (_("invalid RGB hex triplet format")); + + uint8_t r, g, b; + int scanned_chars = 0; + int parsed_args = sscanf (*args, "#%2" SCNx8 "%2" SCNx8 "%2" SCNx8 "%n", + &r, &g, &b, &scanned_chars); + + if (parsed_args != 3 || scanned_chars != 7) + error_no_arg (_("invalid RGB hex triplet format")); + + *args += len; + return ui_file_style::color (r, g, b); +} + +/* See cli-decode.h. */ + +ui_file_style::color +parse_var_color (const char *arg) +{ + const char *end_arg = arg; + ui_file_style::color color = parse_cli_var_color (&end_arg); + + int len = end_arg - arg; + const char *after = skip_spaces (end_arg); + if (*after != '\0') + error (_("Junk after item \"%.*s\": %s"), len, arg, after); + + return color; +} |