C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Needed Tricky Program...          C++Talk.NET Forum Index -> C++ Language (Moderated) View previous topic :: View next topic   Author Message coldblood Guest Posted: Wed Jan 21, 2004 9:07 am    Post subject: Needed Tricky Program... HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) For those who are interested why I need such program read this: I use MSVC++ 6.0 to write my C++ programs, then I finally compile them under DJGPP - but there during compiling I have an error message that: "error: no new line at the end of file", then I must manualy add one character at the end of ever file and the complie process continues - this sucks. That's why I need such tricky program. Please help. Best regards Michal 'coldblood' Przybylowicz [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top v Guest Posted: Wed Jan 21, 2004 4:36 pm    Post subject: Re: Needed Tricky Program... hi, well i havent got one for you, but c++ is definitely not the best choice for the job. go for python, perl or tcl to handle such stuff. bye vlado "coldblood" <coldblood (AT) op (DOT) pl> schrieb im Newsbeitrag news:buk5he$po5$1 (AT) inews (DOT) gazeta.pl... Quote: HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top code_wrong Guest Posted: Wed Jan 21, 2004 7:47 pm    Post subject: Re: Needed Tricky Program... "coldblood" <coldblood (AT) op (DOT) pl> wrote Quote: HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) For those who are interested why I need such program read this: I use MSVC++ 6.0 to write my C++ programs, then I finally compile them under DJGPP - but there during compiling I have an error message that: "error: no new line at the end of file", then I must manualy add one character at the end of ever file and the complie process continues - this sucks. That's why I need such tricky program. Please help. you can use the system call to write the filenames to a text file then read each filename into an append file routine eg for a windows system system("dir /b *.cpp > cpplist.txt"); so now you have a textfile that you can read the filenames from. run through the list opening for append and add your newline. close the file Don't do what I did and open files for writing as you will destroy the contents of the files ... ouch cw [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Ben Hutchings Guest Posted: Wed Jan 21, 2004 7:48 pm    Post subject: Re: Needed Tricky Program... coldblood wrote: Quote: HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) snip You can't do this in standard C++ because it has no means of scanning directories. Since you're working on Windows, this command should do the trick: for %f in (*.hpp *.cpp) do echo. >>"%f" (Putting a "." rather than a space after "echo" forces it to print its arguments rather than controlling command printing.) [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top code_wrong Guest Posted: Wed Jan 21, 2004 7:53 pm    Post subject: Re: Needed Tricky Program... "coldblood" <coldblood (AT) op (DOT) pl> wrote Quote: HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) For those who are interested why I need such program read this: I use MSVC++ 6.0 to write my C++ programs, then I finally compile them under DJGPP - but there during compiling I have an error message that: "error: no new line at the end of file", then I must manualy add one character at the end of ever file and the complie process continues - this sucks. That's why I need such tricky program. here's an idea use system("dir *.cpp /b > cpplist.txt"); to write a bare listing of cpp files to a text file then read the lines in the file into "A file open for append operation" thereby opening each file listed for append append what you want then close the file repeat for each file repeat for each file type [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Thomas Richter Guest Posted: Wed Jan 21, 2004 7:56 pm    Post subject: Re: Needed Tricky Program... Hi, Quote: I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) For those who are interested why I need such program read this: I use MSVC++ 6.0 to write my C++ programs, then I finally compile them under DJGPP - but there during compiling I have an error message that: "error: no new line at the end of file", then I must manualy add one character at the end of ever file and the complie process continues - this sucks. That's why I need such tricky program. Really not at all c++ related. A tiny shell script should be able to do that. Get an implementation of the bash, then the following should help (untested!). for i in *.hpp; do echo "" >>$i done; for i in *.cpp; do echo "" >>$i done; Works also on the command line of the bash. So long, Thomas [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Mike Y. Guest Posted: Thu Jan 22, 2004 8:54 am    Post subject: Re: Needed Tricky Program... On 21 Jan 2004 14:48:59 -0500, Ben Hutchings <do-not-spam-benh (AT) bwsint (DOT) com> wrote: Quote: Since you're working on Windows, this command should do the trick: for %f in (*.hpp *.cpp) do echo. >>"%f" (Putting a "." rather than a space after "echo" forces it to print its arguments rather than controlling command printing.) Building on the dos batch command solution, you can append files together using the "copy" command: copy source.cpp+newline.txt newsource.cpp source.cpp is your source file newline.txt is a text file containing a new line newsource.cpp is the combined file I don't think you can specify the same filename for the source file and target file. Well, this is a partial solution anyway. Good luck. --Mike Y. [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Michael Tiomkin Guest Posted: Thu Jan 22, 2004 8:57 am    Post subject: Re: Needed Tricky Program... "coldblood" <coldblood (AT) op (DOT) pl> wrote Quote: HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) This can be easily done in a small shell/cmd script that updates all these files using a small script/C/"cat" program for adding a couple of chars to a file ("cat" utility is used to concatenate files). You need to write the changed file with a different name/suffix, and then rename the original and the new files. There is nothing tricky in this program. A more complicated option is to use an editor with a macro that appends a line to the end, saves a file and quits. Microsoft Word and vim can easily do this for you. Your problem will be the changed dates of these files. Any make facility, including MSVC, will be confused with this and would recompile everything. Quote: For those who are interested why I need such program read this: I use MSVC++ 6.0 to write my C++ programs, then I finally compile them under DJGPP - but there during compiling I have an error message that: "error: no new line at the end of file", then I must manualy add one character at the end of ever file and the complie process continues - this sucks. That's why I need such tricky program. Did you try to find a version of DJGPP without this "feature"? If it's stuck only on the main source files, you can make a small preprocessor that adds a "#line" stmt at the start and an empty line at the end, and prints everything on the standard output. A better solution would be to use a different C preprocessor that puts a new line after #include'ing a file, and to feed the preprocessed source to your DJGPP. [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Frank Birbacher Guest Posted: Thu Jan 22, 2004 9:17 am    Post subject: Re: Needed Tricky Program... Hi! coldblood wrote: Quote: HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) Apart from the other solutions given, look into boost::filesystem to get the files in the current directory. Frank [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top kanze@gabi-soft.fr Guest Posted: Fri Jan 23, 2004 10:02 am    Post subject: Re: Needed Tricky Program... "coldblood" <coldblood (AT) op (DOT) pl> wrote Quote: I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) For those who are interested why I need such program read this: I use MSVC++ 6.0 to write my C++ programs, then I finally compile them under DJGPP - but there during compiling I have an error message that: "error: no new line at the end of file", then I must manualy add one character at the end of ever file and the complie process continues - this sucks. That's why I need such tricky program. As others have pointed out, this is really a job for a simple shell script. If you really want to do it in C++, however, the Boost Filesystem Library has a directory_iterator which looks like it would do exactly what you want. Apply Boost's filter iterator adaptor to it, and you've got the filenames you want (and only those you want). Finally, of course, when opening the files, be very careful about the modes. Just opening the file for writing will truncate it, even if you don't specify the truncate flag. For a maximum of compatibility with older (sometimes broken) versions of iostream, I'd open with ios::in and ios::out, then seek to the end, but normally, ios::out | ios::app should do the trick (and the seek will not be necessary). -- James Kanze GABI Software mailto:kanze (AT) gabi-soft (DOT) fr Conseils en informatique orientée objet/ http://www.gabi-soft.fr Beratung in objektorientierter Datenverarbeitung 11 rue de Rambouillet, 78460 Chevreuse, France, +33 (0)1 30 23 45 16 [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top coldblood Guest Posted: Fri Jan 23, 2004 10:12 am    Post subject: Re: Needed Tricky Program... U¿ytkownik "Michael Tiomkin" <tmk (AT) netvision (DOT) net.il> napisa³ w wiadomo¶ci news:ef72c6cb.0401211404.31d96e0a (AT) posting (DOT) google.com... Quote: "coldblood" <coldblood (AT) op (DOT) pl> wrote HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) This can be easily done in a small shell/cmd script that updates all these files using a small script/C/"cat" program for adding a couple of chars to a file ("cat" utility is used to concatenate files). You need to write the changed file with a different name/suffix, and then rename the original and the new files. There is nothing tricky in this program. A more complicated option is to use an editor with a macro that appends a line to the end, saves a file and quits. Microsoft Word and vim can easily do this for you. Your problem will be the changed dates of these files. Any make facility, including MSVC, will be confused with this and would recompile everything. For those who are interested why I need such program read this: I use MSVC++ 6.0 to write my C++ programs, then I finally compile them under DJGPP - but there during compiling I have an error message that: "error: no new line at the end of file", then I must manualy add one character at the end of ever file and the complie process continues - this sucks. That's why I need such tricky program. Did you try to find a version of DJGPP without this "feature"? No, I haven't look for it yet ( someone told me that this is some kind of new standard for source files, but if so why MSVC do not put a requaired character at the end of each file ? ). Quote: If it's stuck only on the main source files, you can make a small preprocessor that adds a "#line" stmt at the start and an empty line at the end, and prints everything on the standard output. Its stuck on all source files that have been changed in MSVC editor :( regards coldblood [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Matthew Wilson Guest Posted: Fri Jan 23, 2004 9:05 pm    Post subject: Re: Needed Tricky Program... Quote: HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. Vanity compels me to suggest you can use the C++/STL mappings in the recls project - http://recls.org/ - or even the WinSTL (http://winstl.org/ for windows) or UNIXSTL (http://unixstl.org/ for UNIX) STL-like sequence components upon which it is built. Cheers Matthew Wilson STLSoft moderator (http://www.stlsoft.org) Contributing editor, C/C++ Users Journal (www.synesis.com.au/articles.html#columns) "But if less is more, think how much more more will be!" -- Dr Frazier Crane ------------------------------------------------------------------------------- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Ben Hutchings Guest Posted: Fri Jan 23, 2004 9:11 pm    Post subject: New-line at end of file (was Needed Tricky Program...) coldblood wrote: <snip> Quote: ( someone told me that this is some kind of new standard for source files, but if so why MSVC do not put a requaired character at the end of each file ? ). snip I think all C and C++ standards have required that source files consist of complete lines of source. In a stream-oriented file- system this means there is a new-line character or characters at the end of the file. (In a record-oriented file-system it is impossible to have incomplete lines.) There is probably an explanation of the reason(s) for this in the rationale for ANSI C (C89) but I don't have that. One reason could be that a pre-processor might join an incomplete line at the end of an included file with the next line of the file that included it, changing the interpretation of the program. However, there is no requirement on an implementation to reject files with incomplete lines (the result is "undefined behaviour", so anythng could happen). [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Allan W Guest Posted: Tue Jan 27, 2004 11:03 am    Post subject: Re: Needed Tricky Program... "coldblood" <coldblood (AT) op (DOT) pl> wrote Quote: HI. I need a small program that do the following things: 1) Reads how many files ( with extensions: *.hpp and *.cpp ) are in the same dir that this tricky program resides. 2) Opens every single file and adds ONE character at the end of it ( it could be only one space for ex. ) For those who are interested why I need such program read this: I use MSVC++ 6.0 to write my C++ programs, then I finally compile them under DJGPP - but there during compiling I have an error message that: "error: no new line at the end of file", then I must manualy add one character at the end of ever file and the complie process continues - this sucks. That's why I need such tricky program. Here is fixline.bat: @echo off for %%x in (*.hpp) do call addline.bat %%x for %%x in (*.cpp) do call addline.bat %%x Here is addline.bat: @echo //>>%1 Copy these files into your source directory. Before you compile, switch to the proper directory and call fixline.bat. Note: If you run this multiple times on the same source file, you will add a new comment line to the end of the file each time. While this probably wouldn't interfere with most compiles, if you ran it thousands of times it could eventually start swamping the size of the actual code. [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         C++Talk.NET Forum Index -> C++ Language (Moderated) All times are GMT Page 1 of 1   Jump to: Select a forum C/C++----------------C LanguageC Language (Moderated)C++ Language (Moderated)C++ language (comp.lang.c++)C++ language, library and standards Non-English C/C++ Newsgroups----------------C++ (German)C++ (French)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.