Python re Examples

Example #1

File: css.py Project: DatRollingStone/nwidget

    of a function call.
    '''
    pass

class Important(object):
    '''The '!important' token.'''
    pass

class Delim(str):
    '''Any other punctuation, such as comma, period, operator.'''
    pass

# Scanner macros
# ----------------------------------------------------------------------------

nonascii = re('[^\0-\177]')
_h = NoCase(re('[0-9a-f]'))
_unicode_num = _h + Opt(_h + Opt(_h + Opt(_h + Opt(_h + Opt(_h)))))
unicode = \
   (Str('\\') + _unicode_num + Opt(Str('\r\n') | Any(' \n\r\t\f')))
escape = unicode | (Str('\\') + NoCase(re('[^\n\r\f0-9a-f]')))
nmstart = NoCase(re('[_a-z]')) | nonascii | escape
nmchar = NoCase(re('[_a-z0-9-]')) | nonascii | escape
name = Rep1(nmchar)
ident = Opt(Str('-')) + nmstart + Rep(nmchar)
num = re('[0-9]+') | re('[0-9]*\\.[0-9]+')
nl = Str('\n') | Str('\r\n') | Str('\r') | Str('\f')
string1 = (Str('"') + 
           Rep(AnyBut('\n\r\f\\"') | (Str('\\') + nl) | escape) + 
           Str('"'))
string2 = (Str("'") + 

Example #2

import Test

from Plex.Traditional import re
from Plex.Errors import PlexError
from Plex import Seq, AnyBut


def test_err(s):
    try:
        print re(s)
    except PlexError, e:
        print e


print re("")
print re("a")
print re("[a]")
print re("[ab]")
print re("[abc]")
print re("[a-c]")
print re("[a-cd]")
print re("[a-cg-i]")
print re("[^a]")
print re("[^a-cg-i]")
print re("[-]")
print re("[-abc]")
print re("[abc-]")
print re("[]]")
print re("[]-]")
print re("[^-]")

Example #3

def test_err(s):
    try:
        print re(s)
    except PlexError, e:
        print e

Example #4

File: torque_lex.py Project: elfprince13/KomodoTS

FILECHAR = "[A-Za-z_\.]"
VARMID = "[:A-Za-z0-9_]"
IDTAIL = "[A-Za-z0-9_]"
VARTAIL = "%s*%s" % (VARMID, IDTAIL)
VAREX = "[$%%]%s(%s)*" % (LETTER, VARTAIL)
ID = "%s%s*" % (LETTER, IDTAIL)
ILID = "[$%%]%s+%s%s*" % (DIGIT, LETTER, VARTAIL)
FILENAME = "%s+" % (FILECHAR)
SPACE = "[ \t\v\f]"
HEXDIGIT = "[a-fA-F0-9]"
DQ = '"'
SQ = "'"

lex = Lexicon(
    [
        (re("%s+" % (SPACE)), IGNORE),
        (re("(///[^/][^\n\r]*[\n\r]*)+"), scan_doc_block),
        (re("//[^\n\r]*"), IGNORE),
        (re("[\r\n]"), IGNORE),  # The scanner instance takes care of linenumbers for us
        # (re("\"(\\.|[^\"\n\r])*\""), scan_string_atom),
        (Str('"') + Rep((Str("\\") + AnyChar) | AnyBut('"\n\r')) + Str('"'), scan_string_atom),
        # (re("'(\\.|[^'\n\r])*'"), scan_tag_atom),
        (Str("'") + Rep((Str("\\") + AnyChar) | AnyBut('"\n\r')) + Str("'"), scan_string_atom),
        (Str("=="), (opEQ, opEQ)),
        (Str("!="), (opNE, opNE)),
        (Str(">="), (opGE, opGE)),
        (Str("<="), (opLE, opLE)),
        (Str("&&"), (opAND, opAND)),
        (Str("||"), (opOR, opOR)),
        (Str("::"), (opCOLONCOLON, opCOLONCOLON)),
        (Str("--"), (opMINUSMINUS, opMINUSMINUS)),

Example #5

LETTER = "[A-Za-z_]"
FILECHAR = "[A-Za-z_\.]"
VARMID = "[:A-Za-z0-9_]"
IDTAIL = "[A-Za-z0-9_]"
VARTAIL = "%s*%s" % (VARMID, IDTAIL)
VAREX = "[$%%]%s(%s)*" % (LETTER, VARTAIL)
ID = "%s%s*" % (LETTER, IDTAIL)
ILID = "[$%%]%s+%s%s*" % (DIGIT, LETTER, VARTAIL)
FILENAME = "%s+" % (FILECHAR)
SPACE = "[ \t\v\f]"
HEXDIGIT = "[a-fA-F0-9]"
DQ = '"'
SQ = "'"

lex = Lexicon([
    (re("%s+" % (SPACE)), IGNORE),
    (re("(///[^/][^\n\r]*[\n\r]*)+"), scan_doc_block),
    (re("//[^\n\r]*"), IGNORE),
    (re("[\r\n]"),
     IGNORE),  # The scanner instance takes care of linenumbers for us
    #(re("\"(\\.|[^\"\n\r])*\""), scan_string_atom),
    (Str("\"") + Rep((Str("\\") + AnyChar) | AnyBut("\"\n\r")) + Str("\""),
     scan_string_atom),
    #(re("'(\\.|[^'\n\r])*'"), scan_tag_atom),
    (Str("\'") + Rep((Str("\\") + AnyChar) | AnyBut("\"\n\r")) + Str("\'"),
     scan_string_atom),
    (Str("=="), (opEQ, opEQ)),
    (Str("!="), (opNE, opNE)),
    (Str(">="), (opGE, opGE)),
    (Str("<="), (opLE, opLE)),
    (Str("&&"), (opAND, opAND)),

Example #6

File: css.py Project: TomLatimer92/Artificial-Intelligence-for-Games

class Important(object):
    '''The '!important' token.'''
    pass


class Delim(str):
    '''Any other punctuation, such as comma, period, operator.'''
    pass


# Scanner macros
# ----------------------------------------------------------------------------

nonascii = re('[^\0-\177]')
_h = NoCase(re('[0-9a-f]'))
_unicode_num = _h + Opt(_h + Opt(_h + Opt(_h + Opt(_h + Opt(_h)))))
unicode = \
   (Str('\\') + _unicode_num + Opt(Str('\r\n') | Any(' \n\r\t\f')))
escape = unicode | (Str('\\') + NoCase(re('[^\n\r\f0-9a-f]')))
nmstart = NoCase(re('[_a-z]')) | nonascii | escape
nmchar = NoCase(re('[_a-z0-9-]')) | nonascii | escape
name = Rep1(nmchar)
ident = Opt(Str('-')) + nmstart + Rep(nmchar)
num = re('[0-9]+') | re('[0-9]*\\.[0-9]+')
nl = Str('\n') | Str('\r\n') | Str('\r') | Str('\f')
string1 = (Str('"') + Rep(AnyBut('\n\r\f\\"') | (Str('\\') + nl) | escape) +
           Str('"'))
string2 = (Str("'") + Rep(AnyBut("\n\r\f\\'") | (Str('\\') + nl) | escape) +
           Str("'"))

Example #7

File: test10.py Project: NunoEdgarGub1/bayeslite

def test_err(s):
  try:
    print re(s)
  except PlexError, e:
    print e

Example #8

File: test10.py Project: NunoEdgarGub1/bayeslite

# Test traditional regular expression syntax.

import Test

from Plex.Traditional import re
from Plex.Errors import PlexError
from Plex import Seq, AnyBut

def test_err(s):
  try:
    print re(s)
  except PlexError, e:
    print e

print re("")
print re("a")
print re("[a]")
print re("[ab]")
print re("[abc]")
print re("[a-c]")
print re("[a-cd]")
print re("[a-cg-i]")
print re("[^a]")
print re("[^a-cg-i]")
print re("[-]")
print re("[-abc]")
print re("[abc-]")
print re("[]]")
print re("[]-]")
print re("[^-]")
print re("[^-abc]")