c - implementing globbing in a shell prototype -

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i'm implementing linux shell weekend assignment , having problems implementing wilcard matching feature in shell. know, shells complete language themselves, e.g. bash, ksh, etc. don't need implement complete features control structures, jobs etc. how implement *?

a quick analysis gives following result:

echo *

lists files in current directory. logical manifestation of shell? mean, not considering language-specific features of bash, shell does, internally? replace * files in current directory matching pattern?

also have heard perl compatible regular expression , seems complex use third party library.

any suggestions, links, etc.? try @ source code well, bash.

yes, that's shell does. replace '*' characters files , folder names in cwd. in fact basic regular expressions supporting '?' , '*' , matching file , folder names in cwd. remark backslashed \* , '*' enclosed between simple or double quotes ' or " not replaced (backslash , quotes removed before passing command executed).


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