pmacs3/mode/scala.py

99 lines
3.5 KiB
Python

#import commands
from tab import StackTabber2
#from method import Method
from mode import Fundamental
from lex import Grammar, PatternRule, RegionRule, PatternMatchRule
from mode.python import StringGrammar1, StringGrammar2
#from mode.pipe import Pipe
#from method.shell import Interact
chr1 = '[a-zA-Z_]'
chr2 = '[a-zA-Z_0-9]'
word = chr1 + chr2 + '*'
class NestedCommentGrammar(Grammar): pass
NestedCommentGrammar.rules = [
RegionRule('comment', r'/\*', NestedCommentGrammar, r'\*/'),
PatternRule('data', r'(?:[^\*]|\*(?!/))+'),
]
class StringGrammar(Grammar):
rules = [
PatternRule('escaped', r"\\u[0-9A-Fa-f]{4}|\\[0-7]{1,3}|\\[btnfr\"'\\]"),
PatternRule('data', r'[^\\"]+'),
]
class ScalaGrammar(Grammar):
rules = [
PatternRule('scala.comment', '//.*$'),
RegionRule('scala.comment', r'/\*', NestedCommentGrammar, r'\*/'),
PatternRule('spaces', r'(?:\t| )+'),
PatternRule('eol', r'\n'),
PatternRule('delimiter', r'(?:;|{|}|\[|\]|\(|\)|,|\.|<|>|:|/|\+|-|\*|=)'),
PatternRule('scala.reserved', '(?:yield|with|while|var|val|type|true|try|trait|throw|this|super|sealed|return|protected|private|package|override|object|null|new|match|lazy|import|implicit|if|forSome|for|finally|final|false|extends|else|do|def|class|catch|case|abstract)(?!%s)' % word),
PatternRule('scala.integer', '-?(?:0|[1-9])[0-9]*[Ll]?'),
PatternRule('scala.integer', '-?0x[0-9A-Fa-f]+[Ll]?'),
PatternRule('scala.integer', '-?0[0-7]+[Ll]?'),
PatternRule('scala.float', r'-?[0-9]+\.[0-9]*'), # FIXME
PatternRule('scala.bool', '(?:true|false)(?![a-zA-Z0-9_])'),
PatternRule('scala.char', r"'(?:[^'\\]|\\u[0-9A-Fa-f]{4}|\\[0-7]{1,3}|\\[btnfr\"'\\])'"),
RegionRule('scala.string', '"', StringGrammar, '"'),
PatternRule('scala.symbol', "'[a-zA-Z_][a-zA-Z0-9_]*"),
PatternRule('scala.annotation', '@[a-zA-Z_][a-zA-Z0-9_]*'),
PatternRule('scala.bareword', '[a-zA-Z_][a-zA-Z0-9_]*'),
PatternRule('scala.null', 'null'),
]
class ScalaTabber(StackTabber2):
open_tokens = {'delimiter': {'{': '}', '(': ')', '[': ']'}}
close_tokens = {'delimiter': {'}': '{', ')': '(', ']': '['}}
control_tokens = {'scala.reserved': set(('if', 'else', 'while', 'do', 'for'))}
end_at_eof = True
start_free_tokens = {'string.start': 'string.end'}
end_free_tokens = {'string.end': 'string.start'}
is_ignored_tokens = set(('spaces', 'eol', 'comment', 'comment.start',
'comment.data', 'comment.null', 'comment.end'))
is_indent_tokens = set(('spaces',))
def is_base(self, y): return y == 0
class Scala(Fundamental):
name = 'Scala'
extensions = ['.scala']
tabwidth = 2
tabbercls = ScalaTabber
grammar = ScalaGrammar
commentc = '//'
opentokens = ('delimiter',)
opentags = {'(': ')', '[': ']', '{': '}'}
closetokens = ('delimiter',)
closetags = {')': '(', ']': '[', '}': '{'}
colors = {
'scala.annotation': ('magenta', 'default'),
'scala.bool': ('magenta', 'default'),
'scala.null': ('magenta', 'default'),
'scala.integer': ('default', 'default'),
'scala.float': ('default', 'default'),
'scala.bareword': ('default', 'default'),
}
_bindings = {
'close-paren': (')',),
'close-brace': ('}',),
'close-bracket': (']',),
}
def install(*args):
Scala.install(*args)