This is OK
line[/\sclass\s(\w+)/, 1]
but
line[/\s#include\s(\w+)/, 1]
this is not.
why??? please help.
Ahmet K. wrote:
This is OK
line[/\sclass\s(\w+)/, 1]
but
line[/\s#include\s(\w+)/, 1]
this is not.why??? please help.
“Not OK” by what definition?
Try posting an irb transcript which demonstrates your problem with
sample data. It looks OK to me:
line = “foo #include bar baz”
=> “foo #include bar baz”line[/\s#include\s(\w+)/, 1]
=> “bar”
Brian C. wrote:
Ahmet K. wrote:
This is OK
line[/\sclass\s(\w+)/, 1]
but
line[/\s#include\s(\w+)/, 1]
this is not.why??? please help.
“Not OK” by what definition?
Try posting an irb transcript which demonstrates your problem with
sample data. It looks OK to me:line = “foo #include bar baz”
=> “foo #include bar baz”line[/\s#include\s(\w+)/, 1]
=> “bar”
sorry it was my fault,
i did not recognize “” this.
I corrected it.
irb(main):040:0> line = “foo #include “bar” baz”
irb(main):043:0> line[/\s#include\s("\w+)/, 1]
=> "“bar”
thank you very very much.
At 2009-09-02 08:02AM, “Brian C.” wrote:
Try posting an irb transcript which demonstrates your problem with
sample data. It looks OK to me:line = “foo #include bar baz”
=> “foo #include bar baz”line[/\s#include\s(\w+)/, 1]
=> “bar”
require ‘mind_reading’
Perhaps the line is something like: #include <stdio.h>
in which case the angle bracket gets in the way.
Ahmet, do you want:
line[/\s*#include\s+['"<]?(\w+)/, 1] # => "stdio"
?
Glenn J. wrote:
At 2009-09-02 08:02AM, “Brian C.” wrote:
Try posting an irb transcript which demonstrates your problem with
sample data. It looks OK to me:line = “foo #include bar baz”
=> “foo #include bar baz”line[/\s#include\s(\w+)/, 1]
=> “bar”require ‘mind_reading’
Perhaps the line is something like: #include <stdio.h>
in which case the angle bracket gets in the way.Ahmet, do you want:
line[/\s*#include\s+['"<]?(\w+)/, 1] # => "stdio"?
I am still learner.
really sorry. I did not really recognize it.
You may find \b useful: it means “match a word boundary” without
actually consuming any characters. Your example starts with \s (match
one space), so it wouldn’t match #include right at the beginning of the
file.
But if I remember my C right, the #include has to be at the start of a
line anyway. So perhaps you want:
line = “#include <stdio.h>”
=> “#include <stdio.h>”line[/^\s*#include\s*"</, 1]
=> “stdio.h”
HTH,
Brian.
On Sep 2, 2009, at 10:50 AM, Brian C. wrote:
=> “#include <stdio.h>”
line[/^\s*#include\s*"</, 1]
=> “stdio.h”HTH,
Brian.
And if you are trying to examine/process C code (and headers), the #
must be at the start of the line, but the preprocessor keyword can be
separated from the # by optional white space. For example:
#ifndef MAXCHAR /* bytes to try to read in at once */
ifdef i386
define MAXCHAR 65536 /* might be too big for some systems/devices
*/
else
define MAXCHAR 32768
endif
#endif
-Rob