Handle comments

--HG--
extra : convert_revision : 3f93baaf250922eb40d8718e978273b0def1e4dd
This commit is contained in:
Gabe Black 2007-05-31 20:45:05 +00:00
parent c432588981
commit ace2890f9f
2 changed files with 33 additions and 10 deletions

View file

@ -174,7 +174,6 @@ tokens = reserved + (
'LPAREN', 'RPAREN',
'LBRACE', 'RBRACE',
#'COMMA',
'COLON', 'SEMI', 'DOT',
'NEWLINE'
)
@ -190,62 +189,79 @@ reserved_map = { }
for r in reserved:
reserved_map[r.lower()] = r
def t_ANY_COMMENT(t):
r'\#[^\n]*(?=\n)'
#print "t_ANY_COMMENT %s" % t.value
def t_ANY_MULTILINECOMMENT(t):
r'/\*([^/]|((?<!\*)/))*\*/'
#print "t_ANY_MULTILINECOMMENT %s" % t.value
def t_params_COLON(t):
r':'
t.lexer.begin('asm')
#print "t_params_COLON %s" % t.value
return t
def t_asm_ID(t):
r'[A-Za-z_]\w*'
t.type = reserved_map.get(t.value, 'ID')
t.lexer.begin('params')
#print "t_asm_ID %s" % t.value
return t
def t_ANY_ID(t):
r'[A-Za-z_]\w*'
t.type = reserved_map.get(t.value, 'ID')
#print "t_ANY_ID %s" % t.value
return t
def t_params_PARAMS(t):
r'([^\n;]|((?<=\\)[\n;]))+'
t.lineno += t.value.count('\n')
t.lexer.begin('asm')
#print "t_params_PARAMS %s" % t.value
return t
def t_INITIAL_LBRACE(t):
r'\{'
t.lexer.begin('asm')
#print "t_INITIAL_LBRACE %s" % t.value
return t
def t_asm_RBRACE(t):
r'\}'
t.lexer.begin('INITIAL')
#print "t_asm_RBRACE %s" % t.value
return t
def t_INITIAL_NEWLINE(t):
r'\n+'
t.lineno += t.value.count('\n')
#print "t_INITIAL_NEWLINE %s" % t.value
def t_asm_NEWLINE(t):
r'\n+'
t.lineno += t.value.count('\n')
#print "t_asm_NEWLINE %s" % t.value
return t
def t_params_NEWLINE(t):
r'\n+'
t.lineno += t.value.count('\n')
t.lexer.begin('asm')
#print "t_params_NEWLINE %s" % t.value
return t
def t_params_SEMI(t):
r';'
t.lexer.begin('asm')
#print "t_params_SEMI %s" % t.value
return t
# Basic regular expressions to pick out simple tokens
t_ANY_LPAREN = r'\('
t_ANY_RPAREN = r'\)'
#t_COMMA = r','
t_ANY_SEMI = r';'
t_ANY_DOT = r'\.'
@ -300,7 +316,7 @@ def p_rom_block(t):
# Defines a macroop that jumps to an external label in the ROM
def p_macroop_def_0(t):
'macroop_def : DEF MACROOP LPAREN ID RPAREN SEMI'
'macroop_def : DEF MACROOP ID LPAREN ID RPAREN SEMI'
t[0] = t[4]
# Defines a macroop that is combinationally generated
@ -313,7 +329,7 @@ def p_macroop_def_1(t):
raise
for statement in t[4].statements:
handle_statement(t.parser, curop, statement)
t.parser.macroops.append(curop)
t.parser.macroops[t[3]] = curop
def p_statements_0(t):
'statements : statement'
@ -419,15 +435,17 @@ class MicroAssembler(object):
self.lexer = lex.lex()
self.parser = yacc.yacc()
self.parser.macro_type = macro_type
self.parser.macroops = []
self.parser.macroops = {}
self.parser.microops = microops
self.parser.rom = rom
def assemble(self, asm):
self.parser.parse(asm, lexer=self.lexer)
for macroop in self.parser.macroops:
# Begin debug printing
for macroop in self.parser.macroops.values():
print macroop
print self.parser.rom
# End debug printing
macroops = self.parser.macroops
self.parser.macroops = []
self.parser.macroops = {}
return macroops

View file

@ -68,17 +68,22 @@ class TestMacroop(Macroop):
assembler = MicroAssembler(TestMacroop, microops, Rom('main ROM'))
testAssembly = '''
# Single line comment
def rom {
goo: bah
extern la: hoop 4*8, "a"
};
}; /* multiline comment on one line */
/* multi line comment across lines
to make sure they work */
def macroop squishy {
.tweak
bah
.untweak
bah
dah
dah # single line comment after something
.tweak
};
@ -86,6 +91,6 @@ def macroop squashy {
bah
};
def macroop (bar);
def macroop jumper (bar);
'''
assembler.assemble(testAssembly)