44ebb8d3e2
ext/ply/ply/lex.py:
ext/ply/ply/yacc.py:
ext/ply/CHANGES:
ext/ply/README:
ext/ply/TODO:
ext/ply/doc/ply.html:
ext/ply/example/ansic/clex.py:
ext/ply/example/ansic/cparse.py:
ext/ply/example/calc/calc.py:
ext/ply/example/hedit/hedit.py:
ext/ply/example/optcalc/calc.py:
ext/ply/test/README:
ext/ply/test/calclex.py:
ext/ply/test/lex_doc1.exp:
ext/ply/test/lex_doc1.py:
ext/ply/test/lex_dup1.exp:
ext/ply/test/lex_dup1.py:
ext/ply/test/lex_dup2.exp:
ext/ply/test/lex_dup2.py:
ext/ply/test/lex_dup3.exp:
ext/ply/test/lex_dup3.py:
ext/ply/test/lex_empty.py:
ext/ply/test/lex_error1.py:
ext/ply/test/lex_error2.py:
ext/ply/test/lex_error3.exp:
ext/ply/test/lex_error3.py:
ext/ply/test/lex_error4.exp:
ext/ply/test/lex_error4.py:
ext/ply/test/lex_hedit.exp:
ext/ply/test/lex_hedit.py:
ext/ply/test/lex_ignore.exp:
ext/ply/test/lex_ignore.py:
ext/ply/test/lex_re1.exp:
ext/ply/test/lex_re1.py:
ext/ply/test/lex_rule1.py:
ext/ply/test/lex_token1.py:
ext/ply/test/lex_token2.py:
ext/ply/test/lex_token3.py:
ext/ply/test/lex_token4.py:
ext/ply/test/lex_token5.exp:
ext/ply/test/lex_token5.py:
ext/ply/test/yacc_badargs.exp:
ext/ply/test/yacc_badargs.py:
ext/ply/test/yacc_badprec.exp:
ext/ply/test/yacc_badprec.py:
ext/ply/test/yacc_badprec2.exp:
ext/ply/test/yacc_badprec2.py:
ext/ply/test/yacc_badrule.exp:
ext/ply/test/yacc_badrule.py:
ext/ply/test/yacc_badtok.exp:
ext/ply/test/yacc_badtok.py:
ext/ply/test/yacc_dup.exp:
ext/ply/test/yacc_dup.py:
ext/ply/test/yacc_error1.exp:
ext/ply/test/yacc_error1.py:
ext/ply/test/yacc_error2.exp:
ext/ply/test/yacc_error2.py:
ext/ply/test/yacc_error3.exp:
ext/ply/test/yacc_error3.py:
ext/ply/test/yacc_inf.exp:
ext/ply/test/yacc_inf.py:
ext/ply/test/yacc_missing1.exp:
ext/ply/test/yacc_missing1.py:
ext/ply/test/yacc_nodoc.exp:
ext/ply/test/yacc_nodoc.py:
ext/ply/test/yacc_noerror.exp:
ext/ply/test/yacc_noerror.py:
ext/ply/test/yacc_nop.exp:
ext/ply/test/yacc_nop.py:
ext/ply/test/yacc_notfunc.exp:
ext/ply/test/yacc_notfunc.py:
ext/ply/test/yacc_notok.exp:
ext/ply/test/yacc_notok.py:
ext/ply/test/yacc_rr.exp:
ext/ply/test/yacc_rr.py:
ext/ply/test/yacc_simple.exp:
ext/ply/test/yacc_simple.py:
ext/ply/test/yacc_sr.exp:
ext/ply/test/yacc_sr.py:
ext/ply/test/yacc_term1.exp:
ext/ply/test/yacc_term1.py:
ext/ply/test/yacc_unused.exp:
ext/ply/test/yacc_unused.py:
ext/ply/test/yacc_uprec.exp:
ext/ply/test/yacc_uprec.py:
Import patch ply.diff
src/arch/isa_parser.py:
everything is now within the ply package
--HG--
rename : ext/ply/lex.py => ext/ply/ply/lex.py
rename : ext/ply/yacc.py => ext/ply/ply/yacc.py
extra : convert_revision : fca8deabd5c095bdeabd52a1f236ae1404ef106e
74 lines
1.1 KiB
Python
74 lines
1.1 KiB
Python
# An implementation of Dartmouth BASIC (1964)
|
|
|
|
from ply import *
|
|
|
|
keywords = (
|
|
'LET','READ','DATA','PRINT','GOTO','IF','THEN','FOR','NEXT','TO','STEP',
|
|
'END','STOP','DEF','GOSUB','DIM','REM','RETURN','RUN','LIST','NEW',
|
|
)
|
|
|
|
tokens = keywords + (
|
|
'EQUALS','PLUS','MINUS','TIMES','DIVIDE','POWER',
|
|
'LPAREN','RPAREN','LT','LE','GT','GE','NE',
|
|
'COMMA','SEMI', 'INTEGER','FLOAT', 'STRING',
|
|
'ID','NEWLINE'
|
|
)
|
|
|
|
t_ignore = ' \t'
|
|
|
|
def t_REM(t):
|
|
r'REM .*'
|
|
return t
|
|
|
|
def t_ID(t):
|
|
r'[A-Z][A-Z0-9]*'
|
|
if t.value in keywords:
|
|
t.type = t.value
|
|
return t
|
|
|
|
t_EQUALS = r'='
|
|
t_PLUS = r'\+'
|
|
t_MINUS = r'-'
|
|
t_TIMES = r'\*'
|
|
t_POWER = r'\^'
|
|
t_DIVIDE = r'/'
|
|
t_LPAREN = r'\('
|
|
t_RPAREN = r'\)'
|
|
t_LT = r'<'
|
|
t_LE = r'<='
|
|
t_GT = r'>'
|
|
t_GE = r'>='
|
|
t_NE = r'<>'
|
|
t_COMMA = r'\,'
|
|
t_SEMI = r';'
|
|
t_INTEGER = r'\d+'
|
|
t_FLOAT = r'((\d*\.\d+)(E[\+-]?\d+)?|([1-9]\d*E[\+-]?\d+))'
|
|
t_STRING = r'\".*?\"'
|
|
|
|
def t_NEWLINE(t):
|
|
r'\n'
|
|
t.lexer.lineno += 1
|
|
return t
|
|
|
|
def t_error(t):
|
|
print "Illegal character", t.value[0]
|
|
t.lexer.skip(1)
|
|
|
|
lex.lex()
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|