Application: gvSIG desktop » gvSIG scripting

"""productions for CSS 2.1

CSS2_1_MACROS and CSS2_1_PRODUCTIONS are from both

http://www.w3.org/TR/CSS21/grammar.html and

http://www.w3.org/TR/css3-syntax/#grammar0

"""

__all__ = ['CSSProductions', 'MACROS', 'PRODUCTIONS']

__docformat__ = 'restructuredtext'

__version__ = '$Id$'

# option case-insensitive

MACROS = {

    'h': r'[0-9a-f]',

    #'nonascii': r'[\200-\377]',

    'nonascii': r'[^\0-\177]', # CSS3

    'unicode': r'\\{h}{1,6}(\r\n|[ \t\r\n\f])?',

    'escape': r'{unicode}|\\[^\r\n\f0-9a-f]',

    'nmstart': r'[_a-zA-Z]|{nonascii}|{escape}',

    'nmchar': r'[_a-zA-Z0-9-]|{nonascii}|{escape}',

    'string1': r'\"([^\n\r\f\\"]|\\{nl}|{escape})*\"',

    'string2': r"\'([^\n\r\f\\']|\\{nl}|{escape})*\'",

    'invalid1': r'\"([^\n\r\f\\"]|\\{nl}|{escape})*',

    'invalid2': r"\'([^\n\r\f\\']|\\{nl}|{escape})*",

    'comment': r'\/\*[^*]*\*+([^/*][^*]*\*+)*\/',

    # CSS list 080725 19:43 

    # \/\*([^*\\]|{escape})*\*+(([^/*\\]|{escape})[^*]*\*+)*\/

    'ident':  r'[-]?{nmstart}{nmchar}*',

    'name': r'{nmchar}+',

    # CHANGED TO SPEC: added "-?"

    'num': r'-?[0-9]*\.[0-9]+|[0-9]+',

    'string': r'{string1}|{string2}',

    'invalid': r'{invalid1}|{invalid2}',

    'url': r'([!#$%&*-~]|{nonascii}|{escape})*',

    's': r'[ \t\r\n\f]+',

    'w': r'{s}?',

    'nl': r'\n|\r\n|\r|\f',

    'range': r'\?{1,6}|{h}(\?{0,5}|{h}(\?{0,4}|{h}(\?{0,3}|{h}(\?{0,2}|{h}(\??|{h})))))',

    'A': r'a|\\0{0,4}(41|61)(\r\n|[ \t\r\n\f])?',

    'C': r'c|\\0{0,4}(43|63)(\r\n|[ \t\r\n\f])?',

    'D': r'd|\\0{0,4}(44|64)(\r\n|[ \t\r\n\f])?',

    'E': r'e|\\0{0,4}(45|65)(\r\n|[ \t\r\n\f])?',

    'F': r'f|\\0{0,4}(46|66)(\r\n|[ \t\r\n\f])?',

    'G': r'g|\\0{0,4}(47|67)(\r\n|[ \t\r\n\f])?|\\g',

    'H': r'h|\\0{0,4}(48|68)(\r\n|[ \t\r\n\f])?|\\h',

    'I': r'i|\\0{0,4}(49|69)(\r\n|[ \t\r\n\f])?|\\i',

    'K': r'k|\\0{0,4}(4b|6b)(\r\n|[ \t\r\n\f])?|\\k',

    'M': r'm|\\0{0,4}(4d|6d)(\r\n|[ \t\r\n\f])?|\\m',

    'N': r'n|\\0{0,4}(4e|6e)(\r\n|[ \t\r\n\f])?|\\n',

    'O': r'o|\\0{0,4}(51|71)(\r\n|[ \t\r\n\f])?|\\o',

    'P': r'p|\\0{0,4}(50|70)(\r\n|[ \t\r\n\f])?|\\p',

    'R': r'r|\\0{0,4}(52|72)(\r\n|[ \t\r\n\f])?|\\r',

    'S': r's|\\0{0,4}(53|73)(\r\n|[ \t\r\n\f])?|\\s',

    'T': r't|\\0{0,4}(54|74)(\r\n|[ \t\r\n\f])?|\\t',

    'X': r'x|\\0{0,4}(58|78)(\r\n|[ \t\r\n\f])?|\\x',

    'Z': r'z|\\0{0,4}(5a|7a)(\r\n|[ \t\r\n\f])?|\\z',

    }

PRODUCTIONS = [

    ('URI', r'url\({w}{string}{w}\)'), #"url("{w}{string}{w}")"    {return URI;}

    ('URI', r'url\({w}{url}{w}\)'), #"url("{w}{url}{w}")"    {return URI;}

    ('FUNCTION', r'{ident}\('), #{ident}"("        {return FUNCTION;}

    ('IMPORT_SYM', r'@{I}{M}{P}{O}{R}{T}'), #"@import"        {return IMPORT_SYM;}

    ('PAGE_SYM', r'@{P}{A}{G}{E}'), #"@page"            {return PAGE_SYM;}

    ('MEDIA_SYM', r'@{M}{E}{D}{I}{A}'), #"@media"        {return MEDIA_SYM;}

    ('FONT_FACE_SYM', r'@{F}{O}{N}{T}\-{F}{A}{C}{E}'), #"@font-face"        {return FONT_FACE_SYM;}

    # CHANGED TO SPEC: only @charset

    ('CHARSET_SYM', r'@charset '), #"@charset "        {return CHARSET_SYM;}

    ('NAMESPACE_SYM', r'@{N}{A}{M}{E}{S}{P}{A}{C}{E}'), #"@namespace"        {return NAMESPACE_SYM;}

    # CHANGED TO SPEC: ATKEYWORD

    ('ATKEYWORD', r'\@{ident}'),

    ('IDENT', r'{ident}'), #{ident}            {return IDENT;}

    ('STRING', r'{string}'), #{string}        {return STRING;}

    ('INVALID', r'{invalid}'), #        {return INVALID; /* unclosed string */}

    ('HASH', r'\#{name}'), #"#"{name}        {return HASH;}

    ('PERCENTAGE', r'{num}%'), #{num}%            {return PERCENTAGE;}

    ('LENGTH', r'{num}{E}{M}'), #{num}em            {return EMS;}

    ('LENGTH', r'{num}{E}{X}'), #{num}ex            {return EXS;}

    ('LENGTH', r'{num}{P}{X}'), #{num}px            {return LENGTH;}

    ('LENGTH', r'{num}{C}{M}'), #{num}cm            {return LENGTH;}

    ('LENGTH', r'{num}{M}{M}'), #{num}mm            {return LENGTH;}

    ('LENGTH', r'{num}{I}{N}'), #{num}in            {return LENGTH;}

    ('LENGTH', r'{num}{P}{T}'), #{num}pt            {return LENGTH;}

    ('LENGTH', r'{num}{P}{C}'), #{num}pc            {return LENGTH;}

    ('ANGLE', r'{num}{D}{E}{G}'), #{num}deg        {return ANGLE;}

    ('ANGLE', r'{num}{R}{A}{D}'), #{num}rad        {return ANGLE;}

    ('ANGLE', r'{num}{G}{R}{A}{D}'), #{num}grad        {return ANGLE;}

    ('TIME', r'{num}{M}{S}'), #{num}ms            {return TIME;}

    ('TIME', r'{num}{S}'), #{num}s            {return TIME;}

    ('FREQ', r'{num}{H}{Z}'), #{num}Hz            {return FREQ;}

    ('FREQ', r'{num}{K}{H}{Z}'), #{num}kHz        {return FREQ;}

    ('DIMEN', r'{num}{ident}'), #{num}{ident}        {return DIMEN;}

    ('NUMBER', r'{num}'), #{num}            {return NUMBER;}

    #('UNICODERANGE', r'U\+{range}'), #U\+{range}        {return UNICODERANGE;}

    #('UNICODERANGE', r'U\+{h}{1,6}-{h}{1,6}'), #U\+{h}{1,6}-{h}{1,6}    {return UNICODERANGE;}

    # --- CSS3 ---

    ('UNICODE-RANGE', r'[0-9A-F?]{1,6}(\-[0-9A-F]{1,6})?'),

    ('CDO', r'\<\!\-\-'), #"<!--"            {return CDO;}

    ('CDC', r'\-\-\>'), #"-->"            {return CDC;}

    ('S', r'{s}'),#                {return S;}

    # \/\*[^*]*\*+([^/*][^*]*\*+)*\/                /* ignore comments */

    # {s}+\/\*[^*]*\*+([^/*][^*]*\*+)*\/        {unput(' '); /*replace by space*/}

    ('INCLUDES', r'\~\='), #"~="                        {return INCLUDES;}

    ('DASHMATCH', r'\|\='), #"|="                        {return DASHMATCH;}

    ('LBRACE', r'\{'), #{w}"{"                        {return LBRACE;}

    ('PLUS', r'\+'), #{w}"+"                        {return PLUS;}

    ('GREATER', r'\>'), #{w}">"                        {return GREATER;}

    ('COMMA', r'\,'), #{w}","                        {return COMMA;}

    ('IMPORTANT_SYM', r'\!({w}|{comment})*{I}{M}{P}{O}{R}{T}{A}{N}{T}'), #"!{w}important"        {return IMPORTANT_SYM;}

    ('COMMENT', '\/\*[^*]*\*+([^/][^*]*\*+)*\/'), #    /* ignore comments */

    ('CLASS', r'\.'), #.                        {return *yytext;}

    # --- CSS3! ---

    ('CHAR', r'[^"\']'),

    ]

class CSSProductions(object):

    pass

for i, t in enumerate(PRODUCTIONS):

    setattr(CSSProductions, t[0].replace('-', '_'), t[0])