idTagDetector.py
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	# takes a string as input. Detects SVG tags susceptible of designating geographical divisions
	# such as continents, countries, administrative subdivitions, etc.

	#from bs4 import BeautifulSoup
	import re

	# Aligns tags with CSS conventions for valid names/selectors
	def alignCssSelectors(argString):
	#argString = re.sub("[~!@$%^&*()+=,./';:\"?><[\]\{}\|`# ]","_",argString) # replace invalid characters with underscores. No idea why that does not work
	argString = re.sub(",","_",argString) # replace commas with underscores
	argString = re.sub(" ","_",argString) # replace spaces with underscores
	return argString

	# Detects and handles identifications.
	class IdTagDetector:
	def __init__(self, arg):
	self.arg=arg
	self.detectedTags=[]

	#self.stoplist=["path", "svg", "g", "clipPath", "rect", "stop", "style", "metadata", "title", "defs", "linearGradient", "#State_borders", "separator"]
	self.stoplist=["path", "svg", "g", "clipPath", "rect", "stop", "style", "metadata", "title", "defs", "linearGradient"]
	self.stoplistPath="../configs/stoplists"
	self.whitelist=[]
	self.whitelistPath="../configs/whitelists"
	# The prefixes that have been observed to hold geographic labels in the test maps
	#self.labelPrefixes = ["path class", "label", "label", "id"]
	#self.labelPrefixes = ["path", "class", "inkscape:label", "label", "id"]
	self.labelPrefixes = ["inkscape:label", "label", "id"]

	self.regex = "\s=\s\"([^0-9].+?)\""

	# TODO: implements this
	def loadStopList(self):
	return []

	#returns a regex formed of all words in stoplist. These will never be used as semantically informative geographical IDs.
	def stopListRegex(self):
	regex = "("
	for i in self.stoplist:
	regex = regex+i+"\|"
	regex = regex+" )\d*"
	#return re.compile(regex)
	return regex


	# TODO: implements this
	def loadWhiteList(self):
	return []

	# Just to print what has been found, fairly trivial
	def listTags(self):
	print(self.detectedTags)

	# Seeks prefixes as listed in "self.labelPrefixes", and retrieves following srings if not made entirely of numbers.
	def detect(self):
	candidates = set()
	for labelPrefix in self.labelPrefixes:
	for i in ( re.findall(labelPrefix+self.regex, self.arg) ):
	#if not re.match("(path\|svg\|g\|clipPath\|rect\|stop\|style\|metadata\|title\|defs\|linearGradient)\d+", i):
	if not re.match(self.stopListRegex(), i):
	candidates.add(i)
	self.detectedTags = candidates

	# Return a list of prefixes most likely used in this SVG document to store IDs.
	def detectedPrefixes(self):
	usedPrefixes = []
	for labelPrefix in self.labelPrefixes:
	if len( re.findall(labelPrefix+self.regex, self.arg) ) > 0:
	usedPrefixes.append(labelPrefix)
	return usedPrefixes




	# Just to return what has been found, fairly trivial
	#def detectedTags(self):
	#return self.detectedTags


	#subdivisionTag = "path"
	#labelTag = "inkscape:label"

	#soup = BeautifulSoup(self.arg)
	#candidates = soup.findAll(subdivisionTag)
	#for candidate in candidates:
	#print(candidate)
	##if candidate[labelTag][0] == "#":
	##break
	##if candidate.has_attr(labelTag):
	##self.detectedTags.append(candidate[labelTag])
	##self.detectedTags.append(candidate[labelTag])

	#####################################################################
	#####################################################################
	###############################################
	#../maps/Blank_Map_Africa_1932.svg
	#<path class="land tn" d="m 1329,465 c 0 (...),-4" id="path5410"></path>
	# ==> tn
	###############################################
	#../maps/USA_Counties_with_FIPS_and_names.svg
	#<path d="M 155.88098,77.694 (...) L 155.54698,80.155 L 155.88098,77.694" id="56039" inkscape:label="Teton, WY" style="font-size:12px;fill:#d0d0d0;fill-rule:nonzero;stroke:#000000;stroke-opacity:1;stroke-width:0.1;stroke-miterlimit:4;stroke-dasharray:none;stroke-linecap:butt;marker-start:none;stroke-linejoin:bevel"></path>
	# ==> Teton, WY
	###############################################
	#../maps/Blank_map_of_Europe_1815.svg
	#<path d="m 6315.6975,5206.8332 (...)-1.9098 z" id="Serbia" style="fill:#c0c0c0;stroke:#ffffff;stroke-width:6.11153841;stroke-miterlimit:4;stroke-dasharray:6.11153881, 12.22307732;stroke-dashoffset:0"></path>
	# ==> Serbia
	###############################################
	#../maps/World98.svg
	#<g id="Iran:Semnan Province">
	#<path d='M5242.6766527
	#1029.3724017z' fill='white' stroke='black' />
	#</g>
	#==> Iran:Semnan Province

	#####################################################################
	# path class="land tn"
	# inkscape:label="Teton, WY"
	# id="Serbia"
	# <g id="Iran:Semnan Province">

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