def main(args):
from frags.cmdopts import parse_args
(setup.options, args) = parse_args(args)
# fixed options
setup.options.use_bbox = True
setup.options.prettyXML = False
input_txt = setup.options.input_txt
input_svg = setup.options.input_svg
output_svg = setup.options.output_svg
if not input_txt:
log.error("Rules file not provided, use switch -r or --rules")
sys.exit(1)
elif not os.path.exists(input_txt):
log.error("Rules file '%s' don't exist", input_txt)
sys.exit(1)
if not input_svg:
log.error("Input SVG file not provided, use switch -i or --input")
sys.exit(1)
elif not os.path.exists(input_svg):
log.error("Input SVG file '%s' don't exist", input_svg)
sys.exit(1)
if not output_svg:
log.error("Output SVG file not provided, use switch -i or --output")
sys.exit(1)
elif os.path.exists(output_svg) and not setup.options.frags_overwrite_file:
log.error(
"File %s already exists, and cannot be overwritten. Use switch -f or --force-overwrite to change this behaviour.",
output_svg)
sys.exit(1)
# 1. Load SVG file
XML = xml.dom.minidom.parse(input_svg)
# 1.1. Create 'defs' tag (if doesn't exists), and add xlink namespace
if not XML.getElementsByTagName('defs'):
XML.documentElement.insertBefore(XML.createElement('defs'),
XML.documentElement.firstChild)
if not XML.documentElement.getAttribute('xmlns:xlink'):
XML.documentElement.setAttribute('xmlns:xlink',
"http://www.w3.org/1999/xlink")
if True:
# XXX: hack; for unknown reason expat do not read id attribute
# and getElementById always fails
ID = {}
frags.collect_Id(XML, ID)
def my_getElementById(id):
try:
return ID[id]
except KeyError:
return None
XML.getElementById = my_getElementById
# 1.2. find all text objects
text_objects = {} # text -> node
for node in XML.getElementsByTagName('text'):
try:
text = frags.get_text(node, setup.options.frags_strip)
# add to list
if text in text_objects:
text_objects[text].append(node)
else:
text_objects[text] = [node]
except ValueError:
pass
#for
# 2. Load & parse replace pairs
input = open(input_txt, 'r').read()
from frags.parse_subst import parse
repl_defs = frags.Dict() # valid defs
text_nodes = set() # text nodes to remove/hide
try:
for item in parse(input):
((kind, value), tex, options) = item
if tex is None: # i.e. "this"
if kind == 'string':
if setup.options.frags_strip:
tex = value.strip()
else:
tex = value
elif kind == 'id':
node = XML.getElementById(value[1:])
if frags.istextnode(node):
tex = frags.get_text(node)
if tex is None:
log.error(
"Keyword 'this' is not allowed for rect/points object")
continue
if kind == 'string':
if setup.options.frags_strip:
value = value.strip()
try:
for node in text_objects[value]:
text_nodes.add(node)
repl_defs[tex] = ((kind, node), tex, options)
except KeyError:
log.warning(
"String '%s' doesn't found in SVG, skipping repl",
value)
elif kind == 'id':
object = XML.getElementById(value[1:])
if object:
# "forget" id, save object
if object.nodeName in ['rect', 'ellipse', 'circle']:
repl_defs[tex] = ((kind, object), tex, options)
elif object.nodeName == 'text':
repl_defs[tex] = (('string', object), tex, options)
else:
log.warning(
"Object with id=%s is not text, rect, ellipse nor circle - skipping repl",
value)
else:
log.warning(
"Object with id=%s doesn't found in SVG, skipping repl",
value)
else: # point, rect -- no additional tests needed
repl_defs[tex] = ((kind, value), tex, options)
except frags.parse_subst.SyntaxError, e:
log.error("Syntax error: %s", str(e))
sys.exit(1)
def main(args):
from frags.cmdopts import parse_args
(setup.options, args) = parse_args(args)
# fixed options
setup.options.use_bbox = True
setup.options.prettyXML = False
input_txt = setup.options.input_txt
input_svg = setup.options.input_svg
output_svg = setup.options.output_svg
if not input_txt:
log.error("Rules file not provided, use switch -r or --rules")
sys.exit(1)
elif not os.path.exists(input_txt):
log.error("Rules file '%s' don't exist", input_txt)
sys.exit(1)
if not input_svg:
log.error("Input SVG file not provided, use switch -i or --input")
sys.exit(1)
elif not os.path.exists(input_svg):
log.error("Input SVG file '%s' don't exist", input_svg)
sys.exit(1)
if not output_svg:
log.error("Output SVG file not provided, use switch -i or --output")
sys.exit(1)
elif os.path.exists(output_svg) and not setup.options.frags_overwrite_file:
log.error("File %s already exists, and cannot be overwritten. Use switch -f or --force-overwrite to change this behaviour.", output_svg)
sys.exit(1)
# 1. Load SVG file
XML = xml.dom.minidom.parse(input_svg)
# 1.1. Create 'defs' tag (if doesn't exists), and add xlink namespace
if not XML.getElementsByTagName('defs'):
XML.documentElement.insertBefore(
XML.createElement('defs'),
XML.documentElement.firstChild
)
if not XML.documentElement.getAttribute('xmlns:xlink'):
XML.documentElement.setAttribute('xmlns:xlink', "http://www.w3.org/1999/xlink")
if True:
# XXX: hack; for unknown reason expat do not read id attribute
# and getElementById always fails
ID = {}
frags.collect_Id(XML, ID)
def my_getElementById(id):
try:
return ID[id]
except KeyError:
return None
XML.getElementById = my_getElementById
# 1.2. find all text objects
text_objects = {} # text -> node
for node in XML.getElementsByTagName('text'):
try:
text = frags.get_text(node, setup.options.frags_strip)
# add to list
if text in text_objects:
text_objects[text].append(node)
else:
text_objects[text] = [node]
except ValueError:
pass
#for
# 2. Load & parse replace pairs
input = open(input_txt, 'r').read()
from frags.parse_subst import parse
repl_defs = frags.Dict() # valid defs
text_nodes = set() # text nodes to remove/hide
try:
for item in parse(input):
((kind, value), tex, options) = item
if tex is None: # i.e. "this"
if kind == 'string':
if setup.options.frags_strip:
tex = value.strip()
else:
tex = value
elif kind == 'id':
node = XML.getElementById(value[1:])
if frags.istextnode(node):
tex = frags.get_text(node)
if tex is None:
log.error("Keyword 'this' is not allowed for rect/points object")
continue
if kind == 'string':
if setup.options.frags_strip:
value = value.strip()
try:
for node in text_objects[value]:
text_nodes.add(node)
repl_defs[tex] = ((kind, node), tex, options)
except KeyError:
log.warning("String '%s' doesn't found in SVG, skipping repl", value)
elif kind == 'id':
object = XML.getElementById(value[1:])
if object:
# "forget" id, save object
if object.nodeName in ['rect', 'ellipse', 'circle']:
repl_defs[tex] = ((kind, object), tex, options)
elif object.nodeName == 'text':
repl_defs[tex] = (('string', object), tex, options)
else:
log.warning("Object with id=%s is not text, rect, ellipse nor circle - skipping repl", value)
else:
log.warning("Object with id=%s doesn't found in SVG, skipping repl", value)
else: # point, rect -- no additional tests needed
repl_defs[tex] = ((kind, value), tex, options)
except frags.parse_subst.SyntaxError, e:
log.error("Syntax error: %s", str(e))
sys.exit(1)
# there are more then one referenco to this TeX object, so
# we have to **define** it, and then reference to, with <use>
eq_id = 'svgfrags-%x' % eq_id_n
eq_id_n += 1
SVG.lastpage.setAttribute('id', eq_id)
XML.getElementsByTagName('defs')[0].appendChild(SVG.lastpage)
else:
# just one reference, use node crated by SVGDocument
equation = SVG.lastpage
eq_id = None
# process
for ((kind, value), tex, options) in items:
px, py = options.position
if px == 'inherit':
if frags.istextnode(value):
px = frags.get_anchor(value)
else:
px = 0.0
# bounding box of equation
(xmin, ymin, xmax, ymax) = SVG.lastbbox
# enlarge with margin values
xmin -= options.margin[0]
xmax += options.margin[1]
ymin -= options.margin[2]
ymax += options.margin[3]
# and calculate bbox's dimensions
dx = xmax - xmin
# we have to **define** it, and then reference to, with <use>
eq_id = 'svgfrags-%x' % eq_id_n
eq_id_n += 1
SVG.lastpage.setAttribute('id', eq_id)
XML.getElementsByTagName('defs')[0].appendChild(SVG.lastpage)
else:
# just one reference, use node crated by SVGDocument
equation = SVG.lastpage
eq_id = None
# process
for ((kind, value), tex, options) in items:
px, py = options.position
if px == 'inherit':
if frags.istextnode(value):
px = frags.get_anchor(value)
else:
px = 0.0
# bounding box of equation
(xmin, ymin, xmax, ymax) = SVG.lastbbox
# enlarge with margin values
xmin -= options.margin[0]
xmax += options.margin[1]
ymin -= options.margin[2]
ymax += options.margin[3]
# and calculate bbox's dimensions
dx = xmax - xmin
