Boost Regex not matching

Question

I've got a string i need to match:

/sw/unicad/C32_SC_12_CLKPBP10_LR/2.0/CADENCE/LEF/C32_SC_12_CLKPBP10_LR_soc.lef

I've come up with

static const boost::regex lefFilePath("/?(([[:word:]]*)/)*([[:word:]]*)\.lef");

Yet it doesn't match. Can I get a hand please?

Tim Pietzcker · Accepted Answer · 2011-06-29 14:07:29Z

1

The problem is that the dot in 2.0 isn't matched by the [:word:] shorthand, so you need to include it in the character class.

You probably also should escape the backslash.

Try this:

static const boost::regex lefFilePath("/?(([[:word:].]*)/)*([[:word:].]*)\\.lef");

answered Jun 29, 2011 at 14:07

Tim Pietzcker

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Comments

stema · Accepted Answer · 2011-06-29 14:11:58Z

1

You have a 2.0 in your string, the . is not in the [[:word:]] character class.

The square brackets are defining character classes and you can add the characters you want to be included in that class. So please try

[[:word:].]

The . is treated literally inside a character class, so you don't need to escape it there.

answered Jun 29, 2011 at 14:05

stema

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