K&R C code edits Post: 302562690

Sponsored Content

Homework and Emergencies Homework & Coursework Questions K&R C code edits Post 302562690 by Corona688 on Friday 7th of October 2011 05:19:10 PM

10-07-2011

Registered User

if you can use it, awk has much clearer regexes than sed. The only ()'s you need to escape are ones you want to be actual, literal, ( ) characters instead of grouping brackets.

Code:

$ cat funcrep.awk

{       # Find and replace all matching function declarations
        while(match($0, /([a-z]* [a-z]*)<((,?[a-z]* [a-z]*)*)>/, MATCH))
        {
                FUNC=MATCH[1]   # int fn
                PARAMS=MATCH[2]         # int a, int b, int c
                BEFORE=substr($0, 0, RSTART-1); # Everything before the match
                AFTER=substr($0, RSTART+RLENGTH); # Everything after

                printf("function %s params %s\n", FUNC, PARAMS);
                # Replace it with what we want.
                $0 = BEFORE ":::" AFTER
        }
# 1 at the end of a code block means 'always print $0 after this codeblock finishes'
} 1

$ echo "........ int fn<int a, int b, int c, int d> ........" | awk -f funcrep.awk
function int fn params int a, int b, int c, int d
........ ::: ........
$

It matches <> for clarity, you'll want to change those to .

And, of course, you'll have to take FUNC and PARAMS, split them apart and rearrange them into what you want, and put that back into $0 instead of "..."

And you still have for loops to worry about.

But I hope that'll get you started.

---------- Post updated at 03:19 PM ---------- Previous update was at 03:17 PM ----------

Quote:

Originally Posted by theexitwound

Maybe I'm just missing something, but if you use what you have above, "int a(int b)" won't be found by using those sed patterns because it's expecting to have at least another variable passed to it....

* matches zero or more. Zero of a pattern is perfectly okay. Even an empty parameter list like () should match.

Corona688

View Public Profile for Corona688

Visit Corona688's homepage!

Find all posts by Corona688

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need help with scripting mass file edits..

Hello, I am wanting to know a way to shell (ksh)script-edit a file by having a script that searches for a specific string, and then input lines of text in the file after that specific string. Please help, as I will be up all night if I can't figure this out.

2. Shell Programming and Scripting

Multiple edits to a bunch of html files

I'm trying to upgrade a whole bunch of pages on my site to a new design. I thought one way of doing it would be to enclose the content in special comment tags and then use some form of script to wrap the new html around it. Like this:  <h1>Blah blah blah</h1> yada yada...

3. Shell Programming and Scripting

PHP read large string & split in multidimensional arrays & assign fieldnames & write into MYSQL

Hi, I hope the title does not scare people to look into this thread but it describes roughly what I'm trying to do. I need a solution in PHP. I'm a programming beginner, so it might be that the approach to solve this, might be easier to solve with an other approach of someone else, so if you...

4. UNIX for Dummies Questions & Answers

Compile & Run Java Code

The java program is a part of speech tagger -> The Stanford NLP (Natural Language Processing) Group The goal is to use this script as part of a webpage to tag parts of speech based on a user-inputted string. I have no idea what to do with the files - I'm a complete *nix noob. I tried running...

5. UNIX for Dummies Questions & Answers

OpenLDAP DB_CONFIG edits, changes live? or do I need run something

So I am probably missing something , but when I made edits to my DB_CONFIG file to fix form db_lock issues, the changes are not propagating after a service restart. Anyone know if I need to run anything else, or are the changes live?

6. Shell Programming and Scripting

Problem with call of Java Programm & return code handling & output to several streams.

Hello Everybody, thanks in advance for spending some time in my problem. My problem is this: I want to call a java-Programm out of my shell skript, check if die return code is right, and split the output to the normal output and into a file. The following code doesn't work right, because in...

7. UNIX for Dummies Questions & Answers

multiple text edits inone pass

File_1 looks like: bunch of text Untitled Placemark bunch of text bunch of text Untitled Placemark bunch of text bunch of text Untitled Placemark bunch of text File_2 looks like: Title_001 Title_002 Title_003 First: I need to replace the 1st occurence of "Untitled Placemark"...

8. Shell Programming and Scripting

SFTP Shell Script Get & Delete && Upload & Delete

Hi All, Do you have any sample script, - auto get file from SFTP remote server and delete file in remove server after downloaded. - only download specify filename - auto upload file from local to SFTP remote server and delete local folder file after uploaded - only upload specify filename ...

LEARN ABOUT X11R4

fc-match

FC-MATCH(1)															       FC-MATCH(1)

NAME

       fc-match - match available fonts

SYNOPSIS

       fc-match [ -svV? ] [ --sort ] [ --verbose ] [ --version ] [ --help ] [ font-pattern ]

DESCRIPTION

       fc-match  matches  font-pattern	(empty pattern by default) using the normal fontconfig matching rules to find the best font available.	If
       --sort is given, the sorted list of best matching fonts is displayed.  With --verbose, the whole font pattern for each  match  is  printed,
       otherwise only the file, family and style are printed..

OPTIONS

       This program follows the usual GNU command line syntax, with long options starting with two dashes (`-').  A summary of options is included
       below.

       -v --verbose
	      Print whole font pattern for each match.

       -? --help
	      Show summary of options.

       -V --version
	      Show version of the program and exit.

       -s --sort
	      Displays sorted list of best matching fonts.

       font-pattern
	      Displays fonts matching font-pattern (uses empty pattern by default).

SEE ALSO

       fc-list (1).

       The fontconfig user's guide, in HTML format: /usr/share/doc/fontconfig/fontconfig-user.html.

AUTHOR

       This manual page was updated by Patrick Lam <plam@csail.mit.edu>.

								    05 May 2008 						       FC-MATCH(1)