pmacs3/mode_sql.py

72 lines
3.8 KiB
Python

import color, mode2, tab2
from lex2 import Grammar, PatternRule, NocasePatternRule, RegionRule
from mode_python import StringGrammar
class SqlGrammar(Grammar):
rules = [
PatternRule(r'comment', r'--.*\n$'),
RegionRule(r'comment', '/\*', Grammar, '\*/'),
PatternRule(r'delimiter', r'[();,\.:\$\[\]]'),
NocasePatternRule(r'attribute', r'(?:check|exists|unique|not null|default|primary key|minvalue|foreign key|references)(?![A-Za-z0-9_])'),
NocasePatternRule(r'operator', r'(?:case|when|then|else|end|not|and|or|is not|is|in|not in)(?![A-Za-z0-9_])'),
NocasePatternRule(r'keyword', r'(?:create database|create index|create sequence|create table|create trigger|create view|select|insert|update|delete|drop database|drop index|drop sequence|drop table|drop trigger|drop view|create user|alter user|drop user|drop function|grant|revoke|create function|create or replace function|create or replace view|create language|create operator|create type)(?![A-Za-z0-9_])'),
NocasePatternRule(r'pseudokeyword', r'(?:returns|language|right join|left join|inner join|outer join|join|where|null|true|false|into|values|as|from|order by|asc|desc|limit|distinct|cascade|using|on)(?![A-Za-z0-9_])'),
NocasePatternRule(r'type', r'(?:void|row|serial|varchar|float|integer|int|text|timestamptz|timestamp|datetz|date|timetz|time|boolean|bool)(?![A-Za-z0-9_])'),
PatternRule(r'function', r'(?:nextval|current_timestamp|current_time|current_date)(?![A-Za-z0-9_])'),
RegionRule(r'string', "'", StringGrammar, "'"),
RegionRule(r'quoted', '"', StringGrammar, '"'),
PatternRule(r'bareword', r'[A-Za-z0-9_]+'),
PatternRule(r'empty', r'^ *\n$'),
PatternRule(r'eol', r'; *\n'),
PatternRule(r'continuation', r'\n'),
]
class SqlTabber(tab2.StackTabber):
def is_base(self, y):
if y == 0:
return True
highlighter = self.mode.window.buffer.highlights[self.mode.name()]
if not highlighter.tokens[y]:
return False
t = highlighter.tokens[y][0]
return t.name == 'function'
def _handle_other_token(self, currlvl, y, i):
token = self.get_token(y, i)
if self.is_rightmost_token(y, i):
if not self._empty() and token.name == 'continuation':
self._opt_append('cont', currlvl + 4)
elif token.name == 'eol':
self._opt_pop("cont")
return currlvl
class Sql(mode2.Fundamental):
grammar = SqlGrammar
tabbercls = SqlTabber
opentokens = ('delimiter',)
opentags = {'(': ')', '[': ']', '{': '}'}
closetokens = ('delimiter',)
closetags = {')': '(', ']': '[', '}': '{'}
def __init__(self, w):
mode2.Fundamental.__init__(self, w)
self.add_bindings('close-paren', (')',))
self.add_bindings('close-brace', ('}',))
self.add_bindings('close-bracket', (']',))
self.colors = {
'comment': color.build('red', 'default'),
'operator': color.build('yellow', 'default'),
'attribute': color.build('magenta', 'default'),
'keyword': color.build('cyan', 'default'),
'pseudokeyword': color.build('cyan', 'default'),
'type': color.build('green', 'default'),
'function': color.build('yellow', 'default'),
'quoted': color.build('yellow', 'default'),
'string.start': color.build('green', 'default'),
'string.null': color.build('green', 'default'),
'string.escaped': color.build('magenta', 'default'),
'string.octal': color.build('magenta', 'default'),
'string.end': color.build('green', 'default'),
'bareword': color.build('default', 'default'),
}
def name(self):
return "Sql"