Re: [Lazarus] Command line interpretation on Linux console program...
On Thu, 11 Apr 2019 22:03:55 +0200, Bo Berglund via lazarus wrote: >I have a project where I am creatinmg a video splitting utility using >FPC 3.0.4 and Lazarus 2.0.0 calling ffmpeg via RunCommandIndir() >defined in the Process library unit. A project related question for the command line utility: I have enabled the addition of version information in Project properties (just version info, no icon). So I filled it all in and hit OK then used Run/build to create the executable. Now my question is this: How can I inspect the program file and verify that the version info is actually included? My development machine is a Linux Mint 19 virtual computer under VMWare Workstation PRO15. I used the system file browser (named Caja) and navigated to the file, right clicked and selected properties. But nothing showed up regarding my info. So how can I see what was entered as version info? In Delphi it used to be that you had to do a build to stuff it into the executable. So I have used Run/build to create it. -- Bo Berglund Developer in Sweden -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Command line interpretation on Linux console program...
On Fri, 12 Apr 2019 03:49:36 +0200, "Carlos E. R. via lazarus" wrote: > >That assumes that you will never operate that program on different >languages than yours, because, for instance, here the decimal separator >is a comma. I am in Sweden where we use comma as decimal separator and this is why I wrote my comment about the integer seconds needing no decimals. -- Bo Berglund Developer in Sweden -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Command line interpretation on Linux console program...
Op 2019-04-11 om 22:03 schreef Bo Berglund via lazarus: 1) When I enter a file name as ~/Videos/input.mp4 then FileExists() reports that the file does not exist even though I can clearly see it. If I instead use /home/user/Videos/input.mp4 then it will see it properly. Same if I use the syntax ./filename.mp4 when the file is in the current dir. Why does FileExists() not recognize ~ as shorthand for the home dir? It is rather inconvenient to be forced to use the longer paths... Because expanding ~ happens on the shell level, and programs usually don't see it (they get their parameters already substituted). If they use ~ and other shell modifiers themselves, e.g. in configuration, it is the programmer's responsibility to do substitutions he likes to support. 2) Another issue concerns the parsing of command line parameters. Originally I had set it up to use ; as separator for the two time values of a clip, starttime and duration (in seconds) as follows: t1234;500 for a duration 500 s clip starting at 1234 s into the source video. But for some reason the ParamCount variable contains 3 when the command line looks like this: Here also, the shell does parameter separation on *nix, and the program receives an array. -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Command line interpretation on Linux console program...
On 4/11/19 9:49 PM, Carlos E. R. via lazarus wrote: That assumes that you will never operate that program on different languages than yours, because, for instance, here the decimal separator is a comma. not for *whole* seconds ;) -- NOTE: No off-list assistance is given without prior approval. *Please keep mailing list traffic on the list unless* *a signed and pre-paid contract is in effect with us.* -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Command line interpretation on Linux console program...
On 11/04/2019 23.40, Bo Berglund via lazarus wrote: > On Thu, 11 Apr 2019 22:30:44 +0200, "Carlos E. R. via lazarus" > wrote: > >> In fact, if "videosplitcmb" is your program, it doesn't even see the >> second part, it is bash who stops at the ";" before calling "videosplitcmb". > > Thanks, > rather than taking on Linux I changed the separator to comma since the > values are numeric whole seconds so a decimal separator would not come > into play anyway.. > Works fine... That assumes that you will never operate that program on different languages than yours, because, for instance, here the decimal separator is a comma. -- Cheers / Saludos, Carlos E. R. (from 15.0 x86_64 at Telcontar) signature.asc Description: OpenPGP digital signature -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Command line interpretation on Linux console program...
On Thu, 11 Apr 2019 22:30:44 +0200, "Carlos E. R. via lazarus" wrote: >In fact, if "videosplitcmb" is your program, it doesn't even see the >second part, it is bash who stops at the ";" before calling "videosplitcmb". Thanks, rather than taking on Linux I changed the separator to comma since the values are numeric whole seconds so a decimal separator would not come into play anyway.. Works fine... -- Bo Berglund Developer in Sweden -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
Re: [Lazarus] Command line interpretation on Linux console program...
On 11/04/2019 22.03, Bo Berglund via lazarus wrote: > 2) Another issue concerns the parsing of command line parameters. > Originally I had set it up to use ; as separator for the two time > values of a clip, starttime and duration (in seconds) as follows: > t1234;500 for a duration 500 s clip starting at 1234 s into the source > video. > But for some reason the ParamCount variable contains 3 when the > command line looks like this: > > videosplitcmb -x -iorg.mp4 -t0;1768 -t2420;2972 -otest4.mp4 > > There should really be 5 parameters: -t, -i, -t, -t, -o > > Why is ; treated as some kind of block for the command line parsing? Bash also stops at the ';', it is a command separator. It is like entering two commands like this: videosplitcmb -x -iorg.mp4 -t0 1768 -t2420;2972 -otest4.mp4 You have to escape the ';', like this: '\;' In fact, if "videosplitcmb" is your program, it doesn't even see the second part, it is bash who stops at the ";" before calling "videosplitcmb". -- Cheers / Saludos, Carlos E. R. (from 15.0 x86_64 at Telcontar) signature.asc Description: OpenPGP digital signature -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
[Lazarus] Command line interpretation on Linux console program...
I have a project where I am creatinmg a video splitting utility using FPC 3.0.4 and Lazarus 2.0.0 calling ffmpeg via RunCommandIndir() defined in the Process library unit. The project contains both a GUI and a command line version of the utility, so all manipulation functions are contained in a separate unit used by both versions and both Windows and Linux. I have a strange problem with the command line utility... When I try to debug it there are two different, but possibly related problems: 1) When I enter a file name as ~/Videos/input.mp4 then FileExists() reports that the file does not exist even though I can clearly see it. If I instead use /home/user/Videos/input.mp4 then it will see it properly. Same if I use the syntax ./filename.mp4 when the file is in the current dir. Why does FileExists() not recognize ~ as shorthand for the home dir? It is rather inconvenient to be forced to use the longer paths... 2) Another issue concerns the parsing of command line parameters. Originally I had set it up to use ; as separator for the two time values of a clip, starttime and duration (in seconds) as follows: t1234;500 for a duration 500 s clip starting at 1234 s into the source video. But for some reason the ParamCount variable contains 3 when the command line looks like this: videosplitcmb -x -iorg.mp4 -t0;1768 -t2420;2972 -otest4.mp4 There should really be 5 parameters: -t, -i, -t, -t, -o Why is ; treated as some kind of block for the command line parsing? I have had to temporarily replace ; with _ in order to test my program... -- Bo Berglund Developer in Sweden -- ___ lazarus mailing list lazarus@lists.lazarus-ide.org https://lists.lazarus-ide.org/listinfo/lazarus
