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Escape characters of escape_characters dict at initialisation

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Instead of escaping it each time you read a function with that ugly inline for loop, escape the characters when initialising the dict itself.

Contributes to issue CURA-34.
This commit is contained in:
Ghostkeeper 2015-12-16 15:59:56 +01:00
parent a3936540d8
commit afd63c53c0
2 changed files with 13 additions and 15 deletions
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13
plugins/GCodeWriter/GCodeWriter.py
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@ -22,9 +22,9 @@ class GCodeWriter(MeshWriter):
# Note that the keys of this dictionary are regex strings. The values are
# not.
escape_characters = {
"\\": "\\\\", #The escape character.
"\n": "\\n", #Newlines. They break off the comment.
"\r": "\\r" #Carriage return. Windows users may need this for visualisation in their editors.
re.escape("\\"): "\\\\", #The escape character.
re.escape("\n"): "\\n", #Newlines. They break off the comment.
re.escape("\r"): "\\r" #Carriage return. Windows users may need this for visualisation in their editors.
}
def __init__(self):
@ -54,15 +54,14 @@ class GCodeWriter(MeshWriter):
# \param profile The profile to serialise.
# \return A serialised string of the profile.
def _serialiseProfile(self, profile):
prefix = ";SETTING_" + str(version) + " " #The prefix to put before each line.
prefix = ";SETTING_" + str(GCodeWriter.version) + " " #The prefix to put before each line.
prefix_length = len(prefix)
serialised = profile.serialise()
#Escape characters that have a special meaning in g-code comments.
escape_characters = dict((re.escape(key), value) for key, value in escape_characters.items())
pattern = re.compile("|".join(escape_characters.keys()))
serialised = pattern.sub(lambda m: escape_characters[re.escape(m.group(0))], serialised) #Perform the replacement with a regular expression.
pattern = re.compile("|".join(GCodeWriter.escape_characters.keys()))
serialised = pattern.sub(lambda m: GCodeWriter.escape_characters[re.escape(m.group(0))], serialised) #Perform the replacement with a regular expression.
#Introduce line breaks so that each comment is no longer than 80 characters. Prepend each line with the prefix.
result = ""