replace(*string*, *pat*, *r*[, *n*])
Search for the given pattern pat, and replace each occurrence with r. If n
is provided, replace at most n occurrences. As with search, the second
argument may be a single character, a vector or a set of characters, a
string, or a regular expression. If r is a function, each occurrence is
replaced with r(s) where s is the matched substring.
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julia> originalstring="Mary had a little lamb, her skin is as white as snow"
"Mary had a little lamb, her skin is as white as snow"
julia> replace(originalstring,r"\b([\w]*e) ([\w]*)","not \1 black \2")
"Mary had a not \x01 black \x02, her skin is as not \x01 black \x02 snow"
On Wednesday, August 13, 2014 4:05:23 PM UTC+10, John Myles White wrote:
>
> Suspect I'm missing something. How is this different from the existing
> function replace?
>
> -- John
>
> On Aug 12, 2014, at 11:03 PM, Steven Siew <[email protected]
> <javascript:>> wrote:
>
> > Using regex like in the programming language Perl to perform
> replacements.
> >
> >
> > function
> perlRegexReplace(str::ASCIIString,regex::Regex,rep::ASCIIString)
> > local m,len,result,inter
> > m = match(regex,str)
> > len=length(m.captures)
> > result = replace(str,regex,rep)
> > if len > 0
> > inter = eachmatch(regex,str)
> > for (m in inter)
> > for k = 1:len
> > # Comment out the next line when using function for production
> > println("Replacing \\",k," with ",m.captures[k])
> > result = replace(result,char(k),m.captures[k],1)
> > end
> > end
> > end
> > result
> > end
> >
> > originalstring="Mary had a little lamb, her skin is as white as snow"
> >
> > resultstring = perlRegexReplace(originalstring,r"\b([\w]*e)
> ([\w]*)","not \1 black \2")
> >
> > println("ORIGINAL: ",originalstring)
> > println("RESULTST: ",resultstring)
> >
> >
> > ======================================
> >
> >
> > C:\oracle\julia\scripts> ..\julia.bat perlRegexReplace3.jl
> > Replacing \1 with little
> > Replacing \2 with lamb
> > Replacing \1 with white
> > Replacing \2 with as
> > ORIGINAL: Mary had a little lamb, her skin is as white as snow
> > RESULTST: Mary had a not little black lamb, her skin is as not white
> black as snow
>
>
