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Bash script reg-exp , replace , open and write

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# 1  
Old 06-20-2012
Question Bash script reg-exp , replace , open and write
Hi All
I am a new in scripting language and I would like help for you guys

I would like to create a file named constant.h and search into all files *.m in specific directory for a reg-exp
Code:
@"LBL_[[0-9]]+"

exp: @"LBL_75847" , and write those matchs to constant.h if there are not written (no duplication into the file constants) like this
Code:
NSString *const C_LBL_[[0-9]] = thematch; // exp NSString *const C_LBL_78784 = @"LBL_78784";

Code:
NSString *const C_LBL_[[0-9]] = thematch; // exp NSString *const C_LBL_78787 = @"LBL_78787";

moreover this script should also replace all matched
Code:
@"LBL_[[0-9]]+"

into *.m files with the constant var which is
Code:
 C_LBL_[[0-9]]+

Thanks in advance
# 2  
Old 06-20-2012
Could you show a 'before' and 'after' for part of your data file? I really doubt you want '= thematch' in there, and doubt you want [[0-9]] as part of the declaration, but why you put the part you DO want in comments I can't imagine, and it seems practically unrelated to the thing you're substituting so I'm left puzzled.
# 3  
Old 06-20-2012
hi actually I have files *.m that contain objective c code like this :
Code:
 tableviewlogin.backgroundView = nil;
    [welcometitle setFont:[UIFont fontWithName:FONTB size:FONTSIZETITLE]];
    [welcometitle setText:[MSharedFunctions UF8ErrorMessageForCode:@"LBL_10000"]];
    [welcometitle setTextAlignment:UITextAlignmentCenter];
    NSString *buttontitle = [MSharedFunctions UF8ErrorMessageForCode:@"LBL_10012"];
    [forgotpassword setTitle:buttontitle forState:UIControlStateNormal];
    [forgotpassword setTitle:buttontitle forState:UIControlStateHighlighted];
    [self.navigationItem setTitle:[MSharedFunctions UF8ErrorMessageForCode:@"LBL_10011"]];
    [[self tabBarItem] setTitle:[MSharedFunctions UF8ErrorMessageForCode:@"LBL_10804"]];

I want to generate a file that constant or whatever name which contain
Code:
 NSString *const C_LBL_10000 = @"LBL_10000";
 NSString *const C_LBL_10012 = @"LBL_10012";
 NSString *const C_LBL_10011 = @"LBL_10011";
 NSString *const C_LBL_10804 = @"LBL_10804";

//No duplication B/C it's variables
and replace this const variables into whatever file contain the match *.m
for example


Code:
 tableviewlogin.backgroundView = nil;
    [welcometitle setFont:[UIFont fontWithName:FONTB size:FONTSIZETITLE]];
    [welcometitle setText:[MSharedFunctions UF8ErrorMessageForCode:C_LBL_10000]];
    [welcometitle setTextAlignment:UITextAlignmentCenter];
    NSString *buttontitle = [MSharedFunctions UF8ErrorMessageForCode:C_LBL_10012];
    [forgotpassword setTitle:buttontitle forState:UIControlStateNormal];
    [forgotpassword setTitle:buttontitle forState:UIControlStateHighlighted];
    [self.navigationItem setTitle:[MSharedFunctions UF8ErrorMessageForCode:C_LBL_10011]];
    [[self tabBarItem] setTitle:[MSharedFunctions UF8ErrorMessageForCode:C_LBL_10804]];

My problem I have a lot of classes and I should do this work and rather than do it manually it we be coud to create script to do this work
I hope it's clear now

Thanks
# 4  
Old 06-20-2012
Never overwrite your originals; that's a recipe for disaster. One mistake and all your code is blown away.

I'd suggest renaming your '.m' files into '.pm' files instead. Create '.m' files out of your '.pm' files when you process them. Like this:

Code:
$ cat ocstr.awk

# If the code contains @"LBL_....", replace it with C_LBL_... and
# remember the labels for later.
match($0, /@"LBL_[0-9]*\"/) {
        S=$0; P=""

        do        # Loop until there's nothing left in the right half
        {
                A[L=substr(S, RSTART+2, RLENGTH-3)]++; # Remember label
                P=P substr(S, 1, RSTART-1) "C_" L;
                S=substr(S, RSTART+RLENGTH);
        }
        while(match(S, /@"LBL_[0-9]*\"/)); # Keep hunting for more labels

        $0=P S; # Update the line to be printed
}

# If we are given file.pm, print into file.m
{       O=FILENAME;
        sub(/[.]pm$/, ".m", O);
        print > O;      }

END {
        for(L in A) printf("NSString *const C_%s = @\"%s\";\n", L, L);
}

$ awk -f ocstr.awk dir/*.pm > list

$ cat list

NSString *const C_LBL_10011 = @"LBL_10011";
NSString *const C_LBL_10012 = @"LBL_10012";
NSString *const C_LBL_10804 = @"LBL_10804";
NSString *const C_LBL_10000 = @"LBL_10000";

$ cat dir/*.m

tableviewlogin.backgroundView = nil;
    [welcometitle setFont:[UIFont fontWithName:FONTB size:FONTSIZETITLE]];
    [welcometitle setText:[MSharedFunctions UF8ErrorMessageForCode:C_LBL_10000]];
    [welcometitle setTextAlignment:UITextAlignmentCenter];
    NSString *buttontitle = [MSharedFunctions UF8ErrorMessageForCode:C_LBL_10012];
    [forgotpassword setTitle:buttontitle forState:UIControlStateNormal];
    [forgotpassword setTitle:buttontitle forState:UIControlStateHighlighted];
    [self.navigationItem setTitle:[MSharedFunctions UF8ErrorMessageForCode:C_LBL_10011]];
    [[self tabBarItem] setTitle:[MSharedFunctions UF8ErrorMessageForCode:C_LBL_10804]];

$

These 2 Users Gave Thanks to Corona688 For This Post:
jaysunn molwiko
# 5  
Old 06-20-2012
Thanks a lot, I will test and give u my FB

Thanks again
# 6  
Old 06-22-2012
Hi sorry I have a question related to same post , I would like to pass all files *.m to the same script but the files are in different directories
this command is not working I think it's wrong ?
Code:
awk -f ../Desktop/ocstr.awk find . -type f -name '*.m'

Last edited by molwiko; 06-22-2012 at 08:03 AM..
# 7  
Old 06-22-2012
I strongly suggest reading my post before blindly running my code, since running my code on .m files may destroy them. Never overwrite your originals; that's a recipe for disaster. One mistake and all your code is blown away. Rename your .m files into .pm. Use it to generate .m files from .pm's.

Quote:
Originally Posted by Corona688
Never overwrite your originals; that's a recipe for disaster. One mistake and all your code is blown away.

I'd suggest renaming your '.m' files into '.pm' files instead. Create '.m' files out of your '.pm' files when you process them.
Code:
find . -iname '*.pm' | xargs awk -f ocstr.awk | sort -u > list

This User Gave Thanks to Corona688 For This Post:
molwiko
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