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break up the for loop in textpre.py into separate functions

This commit is contained in:
Bryan Bishop 2012-04-26 11:19:34 -05:00
parent 6e083c9b3a
commit 2446153f98
1 changed files with 51 additions and 39 deletions
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90
textpre.py
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@ -265,43 +265,38 @@ chars = {
"9": 0xFF
}
for l in sys.stdin:
# skip lines with no quotes
if "\"" not in l:
sys.stdout.write(l)
continue
def separate_comment(l):
""" Separates asm and comments on a single line.
"""
asm = ""
asm = ""
comment = None
in_quotes = False
in_comment = False
# strip comments
comment = None
if ";" in l:
in_quotes = False
in_comment = False
for letter in l:
if in_comment:
comment += letter
elif in_quotes and letter != "\"":
asm += letter
elif in_quotes and letter == "\"":
in_quotes = False
asm += letter
elif not in_quotes and letter == "\"":
in_quotes = True
asm += letter
elif not in_quotes and letter != "\"":
if letter == ";":
in_comment = True
comment = ";"
else:
asm += letter
else:
asm = l
# token either belongs to the line or to the comment
for token in l:
if in_comment:
comment += token
elif in_quotes and token != "\"":
asm += token
elif in_quotes and token == "\"":
in_quotes = False
asm += token
elif not in_quotes and token == "\"":
in_quotes = True
asm += token
elif not in_quotes and token != "\"":
if token == ";":
in_comment = True
comment = ";"
else:
asm += token
return asm, comment
# skip asm with no quotes
if "\"" not in asm:
sys.stdout.write(l)
continue
def quote_translator(asm):
""" Writes asm with quoted text translated into bytes.
"""
# split by quotes
asms = asm.split("\"")
@ -311,16 +306,16 @@ for l in sys.stdin:
if "section" in lowasm \
or "include" in lowasm \
or "incbin" in lowasm:
sys.stdout.write(l)
continue
sys.stdout.write(asm)
return
even = False
i = 0
for token in asms:
i = i + 1
if even:
# token is a string to convert to byte values
while len(token):
# read a single UTF-8 codepoint
char = token[0]
@ -358,10 +353,27 @@ for l in sys.stdin:
if len(token):
sys.stdout.write(", ")
# if not even
else:
sys.stdout.write(token)
even = not even
even = not even
return
for l in sys.stdin:
# strip and store any comment on this line
if ";" in l:
asm, comment = separate_comment(l)
else:
asm = l
comment = None
# convert text to bytes when a quote appears (not in a comment)
if "\"" in asm:
quote_translator(asm)
else:
sys.stdout.write(asm)
# show line comment
if comment != None:
sys.stdout.write(comment)