[Pyparsing] Anchoring py.Regex

[thomas_h <th...@gm...>]

Hi,

first off, thanks for pyparsing - great stuff.

Using pyparsing 1.5.5, I'm struggling with using the ^ anchor in a
regular expression passed to py.Regex. E.g. if my input string is

comment = '''
    /**
     * Checks if a class is compatible to the given mixin (no conflicts)
     *
     * @param mixin {Mixin} mixin to check
     * @param clazz {Class} class to check
     * @throws an exception when the given mixin is incompatible to the class
     * @return {Boolean} true if the mixin is compatible to the given class
     */
'''

I want to match in my grammar the "  *" prefix that precedes each
payload in a line (except the first and last, of course).

I tried

    py.Regex(r'^\s*\*', re.M).searchString(comment)

which gives me just ([], {}). Leaving away the ^ anchor, I get all
expected matches. Also using the $ anchor, e.g. in

   py.Regex(r'k$', re.M).searchString(comment)

it seems to work and I get all expected matches (from the "... check"
lines). So what am I doing wrong with ^?

Thomas