"""SCons.Scanner.D

Scanner for the Digital Mars "D" programming language.

Coded by Andy Friesen
17 Nov 2003

"""

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__revision__ = "src/engine/SCons/Scanner/D.py 5061 2010/06/26 17:48:26 bdeegan"

import re
import string

import SCons.Scanner

def DScanner():
    """Return a prototype Scanner instance for scanning D source files"""
    ds = D()
    return ds

class D(SCons.Scanner.Classic):
    def __init__ (self):
        SCons.Scanner.Classic.__init__ (self,
            name = "DScanner",
            suffixes = '$DSUFFIXES',
            path_variable = 'DPATH',
            regex = 'import\s+(?:[a-zA-Z0-9_.]+)\s*(?:,\s*(?:[a-zA-Z0-9_.]+)\s*)*;')

        self.cre2 = re.compile ('(?:import\s)?\s*([a-zA-Z0-9_.]+)\s*(?:,|;)', re.M)

    def find_include(self, include, source_dir, path):
        # translate dots (package separators) to slashes
        inc = string.replace(include, '.', '/')

        i = SCons.Node.FS.find_file(inc + '.d', (source_dir,) + path)
        if i is None:
            i = SCons.Node.FS.find_file (inc + '.di', (source_dir,) + path)
        return i, include

    def find_include_names(self, node):
        includes = []
        for i in self.cre.findall(node.get_text_contents()):
            includes = includes + self.cre2.findall(i)
        return includes

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