command-line-arguments

问题 I have my main script where i have two functions defined. The or_search will find occurrences of a string specified and add to the list what index position it has been found within. The second function and_search finds occurrences of a string specified and a counter is used to increment the amount of times it has been found. In my main function , if i pass for example python main.py andsearch commission , item , sold , it should run the and_search function and bring back the results. It

问题 I understand pointers (I think), and I know that arrays in C are passed as pointers. I'm assuming this applies to command-line arguments in main() as well, but for the life of me I can't do simple comparisons on command-line arguments when I run the following code: #include <stdio.h> #include <stdlib.h> #include <string.h> int main(int numArgs, const char *args[]) { for (int i = 0; i < numArgs; i++) { printf("args[%d] = %s\n", i, args[i]); } if (numArgs != 5) { printf("Invalid number of

问题 I am using SpiderMonkey 1.8.5 on Debian. I am starting a script through the command-line using js -f <myScript> I'd like to pass some arguments to my script, but I don't know how to do that. It's supposedto be possible since the documentation tells you about a special object gathring all parameters provided to a script. I tried the following: js -f <myScript> <1stArg> But SpiderMonkey consider both parameters as different scripts to execute and thus sends en error saying the '<1stArg>' file

问题 I am using boost::program_options to parse arguments. Because I cannot break compatibility I need to allow specifying some arguments multiple times. I need to do it for example for strings (last one wins) or for booleans (every occurence switches the value). Let's show what I have on bool (for strings it should be easier because it does not matter what the default is when parameter is used, because it is overwritten with new value). I have my own class BoolValue and custom validate function

问题 I'm trying to construct a (kind of template/wrapper) script, which is called with some undefined options > the_script.py --foo=23 --bar=42 --narf=fjoord which then creates a variable called foo=23 , bar=42 , narf='fjoord' inside it. What's the way to do it? I tried with getopt , but it needs a second parameter, so I have to define which options to get and of course, I want to be able to define my variable names via command line. I tried OptionParser too, not sure how to deal with undefined

问题 I'm trying to construct a (kind of template/wrapper) script, which is called with some undefined options > the_script.py --foo=23 --bar=42 --narf=fjoord which then creates a variable called foo=23 , bar=42 , narf='fjoord' inside it. What's the way to do it? I tried with getopt , but it needs a second parameter, so I have to define which options to get and of course, I want to be able to define my variable names via command line. I tried OptionParser too, not sure how to deal with undefined

问题 I'm very new to this module so please bear with me. I have the following code: reader.py import argparse parent_parser = argparse.ArgumentParser(description="Read text files.") parent_parser.add_argument('filename', help='TXT file', type=file, nargs='+') parent_parser.add_argument('--verbose', '-v', action='store_true', help="Verbosity on") child_parser = parent_parser.add_subparsers(title="subcommand", help="Subcommand help") new_file_command = child_parser.add_parser('new', help="New text

问题 In my script I have 3 positional arguments and 1 optional argument. One of the three positional arguments is required and the rest is optional (as specified using narg='?' ). My optional argument doesn't pass any other arguments (action ='store_true') and is just there to enable sorting which will be implemented at a later time. However, my problem is that my optional argument only works when it is the first or last argument in the script call. Below is my script so far: parser = argparse

问题 Following this answer, I'm trying to set up a .dmp shell command in the Registry using the -c "..." switch to execute commands whenever I open a dump file. While this works for any commands not using quotation marks, I'd now like to use a command which needs quotation marks. How can I escape the quotation marks to that they are not seen as the end of the -c "..." switch? I tried: escaping with a backslash \" escaping by doubling the quotation marks "" Details are : Registry key: HKEY_CLASSES

问题 I am learning a bit how to work with parameters in a batch-script and ended up creating some kind of template for reading arguments and setting parameters @echo off SetLocal EnableDelayedExpansion set needextra= set errstat= set noflag= set param_f=Not set yet set param_g=You didn't use G-flag :readARGS IF [%1] == [] goto :endARGS call :arg_%1 2> nul IF ERRORLEVEL 1 call :arg_default %1 SHIFT IF DEFINED needextra ( set %needextra%=%~1 SHIFT set needextra= ) goto :readARGS :endARGS echo path