Class cli (o2scl)¶
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class cli¶
Configurable command-line interface.
This class is experimental.
Default commands: help, get, set, quit, exit, license, no-intro, commands, warranty, alias, run, shell, and ‘!’.
Note that if the shell command is allowed (as it is by default) there are some potential security issues which are not solved here.
Interactive commands which begin with a ‘#’ character are ignored.
Todo
Future: Warn in run_interactive() when extra parameters are given.
Future: A replace command function, there’s already some code in cli.cpp for this.
Future: There’s some code duplication between comm_option_run() and run_interactive().
Future: Disallow direct access to ref o2scl::cli::par_list in order to ensure parameter names do not contain whitespace.
Concepts
As a matter of definition, the command-line arguments are simply called arguments. They are separated in commands (which begin with either one dash or two) and parameters to these commands. The word “parameter” is also used to refer to quantities which are modifiable by
get
andset
.Note
In interactive mode, commands are limited to 300 characters, but this limit does not apply when readline is used.
Subclassed by o2scl::cli_readline
Parameter storage and associated iterator type
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typedef std::map<std::string, parameter*, std::greater<std::string>>::iterator par_t¶
List iterator.
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int verbose¶
Control screen output.
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char buf[300]¶
Storage for getline.
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comm_option_funct *user_set_func¶
Storage for the function to call after setting a parameter.
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std::vector<comm_option_s> clist¶
List of commands.
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int print_option_list()¶
Print out all of the command-line options.
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int output_param_list()¶
Output the parameter list.
Todo: there is a fixme entry for 64 columns which should probably be fixed using the screen columns
Aliases
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typedef std::map<std::string, std::string, std::greater<std::string>>::iterator al_it¶
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std::map<std::string, std::string, std::greater<std::string>> als¶
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cli()¶
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virtual ~cli()¶
Colors
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std::string command_color¶
Color for commands.
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std::string type_color¶
Color for types.
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std::string param_color¶
Color for parameters.
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std::string help_color¶
Color for help topics.
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std::string exec_color¶
Color for executable strings.
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std::string url_color¶
Color for URLSs.
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std::string default_color¶
Default color.
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std::string colors¶
Color string.
The hard-coded command functions
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std::string doc_o2_file¶
The file containing the O2scl documentation to be used.
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std::vector<std::string> xml_subs¶
XML substitutions.
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bool gnu_intro¶
If true, output the usual GNU intro when run_interactive() is called (default true).
In order to conform to GNU standards, this ought not be set to false by default.
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int comm_option_alias(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_commands(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_get(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_help(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_license(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_no_intro(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_run(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_shell(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_set(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_warranty(std::vector<std::string> &sv, bool itive_com)¶
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int comm_option_xml_to_o2(std::vector<std::string> &sv, bool itive_com)¶
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bool string_equal_dash(std::string s1, std::string s2)¶
Compare two strings, treating dashes and underscores as equivalent.
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int apply_aliases(std::vector<std::string> &sv, size_t istart, bool debug = false)¶
Proceed through
sv
, applying all previously defined aliases.
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inline int set_function(comm_option_funct &usf)¶
Function to call when a
set
command is issued.
The default command objects
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comm_option_s c_alias¶
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comm_option_s c_commands¶
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comm_option_s c_exit¶
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comm_option_s c_get¶
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comm_option_s c_help¶
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comm_option_s c_license¶
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comm_option_s c_no_intro¶
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comm_option_s c_quit¶
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comm_option_s c_run¶
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comm_option_s c_set¶
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comm_option_s c_shell¶
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comm_option_s c_warranty¶
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comm_option_s c_xml_to_o2¶
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bool sync_verbose¶
If true, then sync cli::verbose, with a parameter of the same name (default true)
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bool shell_cmd_allowed¶
If true, allow the user to execute shell commands (default true)
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std::string prompt¶
The prompt (default
"> "
)
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std::string desc¶
A one- or two-line description (default is empty string)
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std::string cmd_name¶
The name of the command.
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std::string addl_help_cmd¶
Additional help text for interactive mode (default is empty string)
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std::string addl_help_cli¶
Additional help text for command-line (default is empty string)
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void set_colors(std::string c, int verbose = 0)¶
Set the colors to the values from string
c
.
Value to indicate whether commands are also command-line options
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static const int comm_option_command = 0¶
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static const int comm_option_cl_param = 1¶
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static const int comm_option_both = 2¶
Basic operation
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int set_comm_option(comm_option_s &ic)¶
Add a new command.
Each command/option must have either a short form in comm_option_s::shrt or a long from in comm_option_s::lng, which is unique from the other commands/options already present. You cannot add two commands/options with the same short form, even if they have different long forms, and vice versa.
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void remove_comm_option(std::string cmd)¶
Remove a command with long name
cmd
.
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template<class vec_t>
inline int set_comm_option_vec(size_t list_size, vec_t &option_list)¶ Add new commands specified in a list.
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int set_param_help(std::string param, std::string help)¶
Set one-line help text for a parameter named
param
.
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int run_auto(int argc, char *argv[], int debug = 0)¶
Automatically parse arguments to main and call interactive mode if required.
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virtual char *cli_gets(const char *c)¶
The function which obtains input from the user.
- Future: Think about whether or not this should be protected?
(Possibly not, as it’s extensively used by acolm.cpp)
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int call_args(std::vector<cmd_line_arg> &ca, int debug = 0)¶
Call functions corresponding to command-line args.
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int process_args_c(int argc, char *argv[], std::vector<cmd_line_arg> &ca, int debug = 0, bool also_call_args = false)¶
Process command-line arguments from a const char array.
This doesn’t actually execute the functions for the corresponding options, but simply processes the parameters
argv
andargv
and packs the information intoca
.This function assumes that
argc[0]
just contains the name of the command, and should thus be ignored.
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int parse_for_aliases(std::vector<std::string> &svsv, bool allow_undashed, bool debug = false)¶
Go through the argument list in
sv
and add any alias definitions which appear.Note, if verbose is greater than 1, then new alias definitions will be output to the screen.
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int process_args(std::vector<std::string> &sv, std::vector<cmd_line_arg> &ca, int debug, bool also_call_args = false)¶
Process command-line arguments from a vector of strings.
This doesn’t actually execute the functions for the corresponding options, but simply processes the arguments in
sv
and packs the information intoca
.
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int process_args_str(std::string s, std::vector<cmd_line_arg> &ca, int debug = 0, bool also_call_args = false)¶
Process command-line arguments from a string.
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int set_verbose(int v)¶
Set verbosity.
Most errors are output to the screen even if verbose is zero.
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int run_interactive()¶
Run the interactive mode.
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int set_alias(std::string alias, std::string str)¶
Set an alias
alias
for the stringstr
.Aliases can also be set using the command
'alias'
, but that version allows only one-word aliases.
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std::string get_alias(std::string alias)¶
Set an alias
alias
for the stringstr
.Aliases can also be set using the command
'alias'
, but that version allows only one-word aliases.
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bool is_valid_option(std::string str)¶
Return true if
str
is a valid option or command.
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bool is_parameter(std::string name)¶
Return true if
name
is a valid parameter name.
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std::vector<std::string> get_parameter_list()¶
Get the list of parameters.
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std::vector<std::string> get_option_list()¶
Get the list of options/commands.
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std::string parameter_desc(std::string name)¶
Get the description of parameter named
name
.
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std::string option_short_desc(std::string name)¶
Get the short description of option named
name
.
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int read_docs()¶
Read the command and parameter documentation from doc_o2_file.
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void xml_replacements(std::string &s)¶
Make standard replacements of the Doxygen XML output.
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comm_option_s *get_option_pointer(std::string name)¶
Get a pointer to the option of name
name
.
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class parameter¶
Parameter for o2scl::cli.
Subclassed by o2scl::cli::parameter_bool, o2scl::cli::parameter_double, o2scl::cli::parameter_int, o2scl::cli::parameter_size_t, o2scl::cli::parameter_string
Public Functions
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inline virtual ~parameter()¶
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virtual int set(std::string s) = 0¶
Set from string.
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virtual std::string get() = 0¶
Convert to string.
Public Members
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std::string help¶
Help description.
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int doc_type¶
(currently unused)
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std::string doc_ns¶
The name of the namespace.
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std::string doc_class¶
The name of the class (if applicable)
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std::string doc_name¶
The function or object name.
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std::string doc_xml_file¶
The file containing the XML documentation to be used.
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inline virtual ~parameter()¶
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class parameter_bool : public o2scl::cli::parameter¶
String parameter for o2scl::cli.
Public Functions
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inline virtual ~parameter_bool()¶
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inline virtual int set(std::string s)¶
Set from string.
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inline virtual std::string get()¶
Convert to string.
Public Members
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bool *b¶
Parameter.
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inline virtual ~parameter_bool()¶
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class parameter_double : public o2scl::cli::parameter¶
Double parameter for o2scl::cli.
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class parameter_int : public o2scl::cli::parameter¶
Integer parameter for o2scl::cli.
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class parameter_size_t : public o2scl::cli::parameter¶
Integer parameter for o2scl::cli.