Regex Pattern Question

surefire · 11-18-2009, 12:16 PM

I'm working on a regex parser that sifts through an input file and matches a student's name to their grade.

Code:

char name[BUF_SIZE];

sprintf(name,argv[2]);     /*copy netid into name */
printf("Grade Info For '%s'\n\n",name);

sprintf(name_grade, "(\\-.[char name goes here]).\\|.([0-9]+)");

How can I get the 2nd sprintf line to regex match on the name stored in char name[] ?

The file input format is

Code:

 - studentname | 29

Thanks

nadroj · 11-18-2009, 12:40 PM

So if the given argument has name "bob", the regex should look like "- bob | ([0-9])+"?

Why dont you just print it?

Code:

sprintf(name_grade, "(\\-.%s).\\|.([0-9]+)", name);

Or whatever format it is--just use it as if you were "printf"ing.

surefire · 11-18-2009, 12:46 PM

Awesome, didn't realize that was an option. Thanks!

nadroj · 11-18-2009, 12:48 PM

No problem. Keep in mind that "sprintf" and "fprintf" are the string- and file-output equivalents of screen-output "printf", respectively. So anything you can do in "printf", is just as easily done in the other functions.

11-18-2009, 12:16 PM	#1
surefire Registered User Join Date: Nov 2009 Posts: 13	Regex Pattern Question I'm working on a regex parser that sifts through an input file and matches a student's name to their grade. Code: char name[BUF_SIZE]; sprintf(name,argv[2]); /copy netid into name / printf("Grade Info For '%s'\n\n",name); sprintf(name_grade, "(\\-.[char name goes here]).\\\|.([0-9]+)"); How can I get the 2nd sprintf line to regex match on the name stored in char name[] ? The file input format is Code: - studentname \| 29 Thanks
surefire is offline

11-18-2009, 12:40 PM	#2
nadroj Registered User Join Date: Oct 2006 Location: Canada Posts: 1,230	So if the given argument has name "bob", the regex should look like "- bob \| ([0-9])+"? Why dont you just print it? Code: sprintf(name_grade, "(\\-.%s).\\\|.([0-9]+)", name); Or whatever format it is--just use it as if you were "printf"ing.
nadroj is offline

11-18-2009, 12:46 PM	#3
surefire Registered User Join Date: Nov 2009 Posts: 13	Awesome, didn't realize that was an option. Thanks!
surefire is offline

11-18-2009, 12:48 PM	#4
nadroj Registered User Join Date: Oct 2006 Location: Canada Posts: 1,230	No problem. Keep in mind that "sprintf" and "fprintf" are the string- and file-output equivalents of screen-output "printf", respectively. So anything you can do in "printf", is just as easily done in the other functions.
nadroj is offline

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