vedrandeko...@v-programs.com wrote:
I on working on windows and Python 2.4. Where can I find and CHANGE
python
grammar. ( I just want to change the keywords )
Instead of changing Python grammar, you could convert your
"translated" source into "original" Python using the code below, and
compile and run as usual; you can also reverse the process. Also, this
lets you use the standard Python library and all other Python code
around the world.
Unlike a simple "search and replace", it understands the lexical
structure of a Python program, and won't replace a keyword inside a
quoted string, by example.
The core function is simple:
def translate_tokens(sourcefile, tdict):
for tok_num, tok_val, _, _, _ in
tokenize.generate_tokens(sourcefile.readline):
if tok_num==token.NAME: tok_val = tdict.get(tok_val, tok_val)
yield tok_num, tok_val
translated_code = tokenize.untokenize(
translate_tokens(StringIO(original_code), translation_dictionary))
Note that you may encounter problems if the original code uses some
names matching the translated keywords.
(I hope nobody will abuse this technique... Y perdón a los
hispanoparlantes por lo horrible de la traducción).
--- begin code ---
from cStringIO import StringIO
import token
import tokenize
# "spanished" Python source from the SimplePrograms wiki page
code_es = r"""
BOARD_SIZE = 8
clase BailOut(Exception):
pasar
def validate(queens):
left = right = col = queens[-1]
para r en reversed(queens[:-1]):
left, right = left-1, right+1
si r en (left, col, right):
lanzar BailOut
def add_queen(queens):
para i en range(BOARD_SIZE):
test_queens = queens + [i]
intentar:
validate(test_queens)
si len(test_queens) == BOARD_SIZE:
retornar test_queens
else:
retornar add_queen(test_queens)
excepto BailOut:
pasar
lanzar BailOut
queens = add_queen([])
imprimir queens
imprimir "\n".join(". "*q + "Q " + ". "*(BOARD_SIZE-q-1) para q en
queens)
"""
# english keyword -spanish
trans_en2es = {
'and': 'y',
'as': 'como',
'assert': 'afirmar',
'break': 'afuera',
'class': 'clase',
'continue': 'siguiente',
'def': 'def',
'del': 'elim',
'elif': 'sinosi',
'else': 'sino',
'except': 'excepto',
'exec': 'ejecutar',
'finally': 'finalmente',
'for': 'para',
'from': 'desde',
'global': 'global',
'if': 'si',
'import': 'importar',
'in': 'en',
'is': 'es',
'lambda': 'lambda',
'not': 'no',
'or': 'o',
'pass': 'pasar',
'print': 'imprimir',
'raise': 'lanzar',
'return': 'retornar',
'try': 'intentar',
'while': 'mientras',
'with': 'con',
'yield': 'producir',
}
# reverse dict
trans_es2en = dict((v,k) for (k,v) in trans_en2es.items())
def translate_tokens(source, tdict):
for tok_num, tok_val, _, _, _ in
tokenize.generate_tokens(source.readline):
if tok_num==token.NAME: tok_val = tdict.get(tok_val, tok_val)
yield tok_num, tok_val
code_en = tokenize.untokenize(translate_tokens(StringIO(code _es),
trans_es2en))
print code_en
code_es2= tokenize.untokenize(translate_tokens(StringIO(code _en),
trans_en2es))
print code_es2
--- end code ---
--
Gabriel Genellina
PS: Asking just once is enough.
