Command Line Application in D
I am trying to build some simple command line applications that I have written in python as a way to learn D. Can you give some examples for me? For instance, I think I remember once seeing somewhere in the documentation an example that took several D files and compiled them all by running some kind of system command. I much appreciate your help! TJB
Re: Command Line Application in D
I am a little bit confused as to what you want. There is a command line example at dlang.org, and there exists a program (rdmd) that compiles several D files and runs them. http://dlang.org/rdmd.html 2014-08-04 23:20 GMT+02:00 TJB via Digitalmars-d-learn < digitalmars-d-learn@puremagic.com>: > I am trying to build some simple command line applications that I have > written in python as a way to learn D. Can you give some examples for me? > For instance, I think I remember once seeing somewhere in the documentation > an example that took several D files and compiled them all by running some > kind of system command. > > I much appreciate your help! > > TJB >
Re: Command Line Application in D
On Monday, 4 August 2014 at 21:58:09 UTC, maarten van damme via Digitalmars-d-learn wrote: I am a little bit confused as to what you want. There is a command line example at dlang.org, and there exists a program (rdmd) that compiles several D files and runs them. http://dlang.org/rdmd.html Sorry. I wasn't very clear. Say I want to find all of the files that have a certain extension within a directory and process them somehow at the command line. How could I do that?
Re: Command Line Application in D
On 5/08/2014 10:03 a.m., TJB wrote: On Monday, 4 August 2014 at 21:58:09 UTC, maarten van damme via Digitalmars-d-learn wrote: I am a little bit confused as to what you want. There is a command line example at dlang.org, and there exists a program (rdmd) that compiles several D files and runs them. http://dlang.org/rdmd.html Sorry. I wasn't very clear. Say I want to find all of the files that have a certain extension within a directory and process them somehow at the command line. How could I do that? Just a little something I made for you. Untested of course. But takes an argument from cli, which is a glob. Foreach file under current working directory, if its a file write out processing. (I gave std.stdio an alias because std.file and std.stdio conflict for some symbols) import std.file; import stdio = std.stdio; void main(string[] args) { if (args.length == 2) { foreach(entry; dirEntries(".", args[1], SpanMode.Depth)) { if (isDir(entry.name)) { } else if (isFile(entry.name)) { stdio.writeln("Processing " ~ entry.name); } } } else { stdio.writeln("Arguments: "); } }
Re: Command Line Application in D
On Monday, 4 August 2014 at 22:03:24 UTC, TJB wrote: On Monday, 4 August 2014 at 21:58:09 UTC, maarten van damme via Digitalmars-d-learn wrote: I am a little bit confused as to what you want. There is a command line example at dlang.org, and there exists a program (rdmd) that compiles several D files and runs them. http://dlang.org/rdmd.html Sorry. I wasn't very clear. Say I want to find all of the files that have a certain extension within a directory and process them somehow at the command line. How could I do that? Have a look at the function dirEntries in std.file. regards, --
Re: Command Line Application in D
This is exactly what I was thinking. Thanks so much for your help! TJB Just a little something I made for you. Untested of course. But takes an argument from cli, which is a glob. Foreach file under current working directory, if its a file write out processing. (I gave std.stdio an alias because std.file and std.stdio conflict for some symbols) import std.file; import stdio = std.stdio; void main(string[] args) { if (args.length == 2) { foreach(entry; dirEntries(".", args[1], SpanMode.Depth)) { if (isDir(entry.name)) { } else if (isFile(entry.name)) { stdio.writeln("Processing " ~ entry.name); } } } else { stdio.writeln("Arguments: "); } }