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New feature: when saving a file, keep the eol convention of the 

original.  New files are written using the eol convention of the
platform, given by os.linesep.  All files are read and written in
binary mode.
This commit is contained in:
Guido van Rossum 2003-04-25 18:36:31 +00:00
parent 9635268ea9
commit c2f77dddf3
1 changed files with 11 additions and 3 deletions
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14
Lib/idlelib/IOBinding.py
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@ -178,6 +178,10 @@ class IOBinding:
self.text.focus_set() self.text.focus_set()
return "break" return "break"
eol = r"(\r\n)|\n|\r" # \r\n (Windows), \n (UNIX), or \r (Mac)
eol_re = re.compile(eol)
eol_convention = os.linesep # Default
def loadfile(self, filename): def loadfile(self, filename):
try: try:
# open the file in binary mode so that we can handle # open the file in binary mode so that we can handle
@ -191,8 +195,10 @@ class IOBinding:
chars = self.decode(chars) chars = self.decode(chars)
# We now convert all end-of-lines to '\n's # We now convert all end-of-lines to '\n's
eol = r"(\r\n)|\n|\r" # \r\n (Windows), \n (UNIX), or \r (Mac) firsteol = self.eol_re.search(chars)
chars = re.compile( eol ).sub( r"\n", chars ) if firsteol:
self.eol_convention = firsteol.group(0)
chars = self.eol_re.sub(r"\n", chars)
self.text.delete("1.0", "end") self.text.delete("1.0", "end")
self.set_filename(None) self.set_filename(None)
@ -306,8 +312,10 @@ class IOBinding:
def writefile(self, filename): def writefile(self, filename):
self.fixlastline() self.fixlastline()
chars = self.encode(self.text.get("1.0", "end-1c")) chars = self.encode(self.text.get("1.0", "end-1c"))
if self.eol_convention != "\n":
chars = chars.replace("\n", self.eol_convention)
try: try:
f = open(filename, "w") f = open(filename, "wb")
f.write(chars) f.write(chars)
f.close() f.close()
return True return True