53 regexp

[skx]

This pull request will close #53, by implementing support for regular expressions as objects.

Currently the following program works:

frodo ~/Repos/github.com/skx/monkey $ cat reg.mon
x = /steve/i;

puts( x, " is type:" , type(x), "\n" );

It produces:

frodo ~/Repos/github.com/skx/monkey $ go build . ; ./monkey reg.mon 
(?i)steve is type:regexp

Note here the flag /i has been converted to the version go prefers, the (?i) prefix.

Outstanding task is mostly to implement !~ and =~ operators.

[skx]

Sample code works:

if ( "Steve" ~= /steve/i ) {
   puts("This is fine!\n");
}

if ( "sSteve" !~ /^steve/i ) {
   puts("Thisf is fine!\n");
}

Probably needs more love, but a good work in progress.

[skx]

Current state:

• match operators !~ + ~= both do type-chcking on the right hand side.
• two flags supported /m & /i . Mixtures are fine /mi /im.
• seems to work.