Add SVG Path parser from enthought. Added reserialization of path.
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JSCHILL1
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5 changed files with 522 additions and 3674 deletions
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fulltests/gimp.svg
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<radialGradient inkscape:collect="always" xlink:href="#linearGradient2998" id="radialGradient2996" gradientUnits="userSpaceOnUse" gradientTransform="matrix(-0.0110724, 0.456938, -0.549581, -0.0133172, 550.239, 443.222)" cx="9.5432158" cy="756.36554" fx="9.5432158" fy="756.36554" r="186.62791"/>
|
||||||
|
<linearGradient inkscape:collect="always" xlink:href="#linearGradient7423" id="linearGradient1529" gradientUnits="userSpaceOnUse" gradientTransform="translate(392.322, -198.434)" x1="-98.062012" y1="374.84985" x2="93.040863" y2="678.84985"/>
|
||||||
|
<linearGradient inkscape:collect="always" xlink:href="#linearGradient7423" id="linearGradient1532" gradientUnits="userSpaceOnUse" gradientTransform="translate(392.322, -203.49)" x1="-98.062012" y1="374.84985" x2="93.040863" y2="678.84985"/>
|
||||||
|
</defs>
|
||||||
|
<sodipodi:namedview id="base" pagecolor="#ffffff" bordercolor="#666666" borderopacity="1.0" inkscape:pageopacity="0.0" inkscape:pageshadow="2" inkscape:zoom="0.98905729" inkscape:cx="329.43391" inkscape:cy="148.58953" inkscape:current-layer="g1902" showgrid="true" inkscape:document-units="px" inkscape:grid-bbox="true" inkscape:window-width="1027" inkscape:window-height="693" inkscape:window-x="0" inkscape:window-y="25" showguides="true" inkscape:guide-bbox="true">
|
||||||
|
<sodipodi:guide orientation="horizontal" position="610.00000" id="guide11974"/>
|
||||||
|
<sodipodi:guide orientation="horizontal" position="-136.00000" id="guide11976"/>
|
||||||
|
</sodipodi:namedview>
|
||||||
|
<metadata id="metadata1311">
|
||||||
|
<rdf:RDF>
|
||||||
|
<cc:Work rdf:about="">
|
||||||
|
<dc:format>image/svg+xml</dc:format>
|
||||||
|
<dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage"/>
|
||||||
|
<cc:license rdf:resource="http://creativecommons.org/licenses/by-sa/2.0/"/>
|
||||||
|
<dc:title>Wilber, the GIMP</dc:title>
|
||||||
|
<dc:date>10/23/05</dc:date>
|
||||||
|
<dc:creator>
|
||||||
|
<cc:Agent>
|
||||||
|
<dc:title>worthawholebean</dc:title>
|
||||||
|
</cc:Agent>
|
||||||
|
</dc:creator>
|
||||||
|
<dc:publisher>
|
||||||
|
<cc:Agent>
|
||||||
|
<dc:title>Inkscape</dc:title>
|
||||||
|
</cc:Agent>
|
||||||
|
</dc:publisher>
|
||||||
|
<dc:description>This is an SVG version of the original Wilber.</dc:description>
|
||||||
|
<dc:contributor>
|
||||||
|
<cc:Agent>
|
||||||
|
<dc:title>worthawholebean</dc:title>
|
||||||
|
</cc:Agent>
|
||||||
|
</dc:contributor>
|
||||||
|
</cc:Work>
|
||||||
|
<cc:License rdf:about="http://creativecommons.org/licenses/by-sa/2.0/">
|
||||||
|
<cc:permits rdf:resource="http://web.resource.org/cc/Reproduction"/>
|
||||||
|
<cc:permits rdf:resource="http://web.resource.org/cc/Distribution"/>
|
||||||
|
<cc:requires rdf:resource="http://web.resource.org/cc/Notice"/>
|
||||||
|
<cc:requires rdf:resource="http://web.resource.org/cc/Attribution"/>
|
||||||
|
<cc:permits rdf:resource="http://web.resource.org/cc/DerivativeWorks"/>
|
||||||
|
<cc:requires rdf:resource="http://web.resource.org/cc/ShareAlike"/>
|
||||||
|
</cc:License>
|
||||||
|
</rdf:RDF>
|
||||||
|
</metadata>
|
||||||
|
<g inkscape:label="bg" id="layer4" inkscape:groupmode="layer"/>
|
||||||
|
<g inkscape:label="shdw" id="layer5" inkscape:groupmode="layer"/>
|
||||||
|
<g inkscape:groupmode="layer" inkscape:label="bot" id="layer1"/>
|
||||||
|
<g inkscape:label="mid" id="layer3" inkscape:groupmode="layer"/>
|
||||||
|
<g inkscape:label="top" id="layer2" inkscape:groupmode="layer">
|
||||||
|
<g id="g1902">
|
||||||
|
<g id="g1603">
|
||||||
|
<path style="fill: url(#linearGradient1532) rgb(0, 0, 0); fill-opacity: 1; fill-rule: evenodd; stroke: none; stroke-width: 1; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 4; stroke-dasharray: none; stroke-opacity: 1;" d="M 385.88362,201.47812 C 505.43501,223.44223 659.42238,159.82405 714.32160,-0.0015300000 C 767.48553,202.26527 611.38362,310.07599 611.38362,310.07599 C 545.68594,542.88219 229.08516,573.63413 74.259580,449.63414 L 121.19756,292.63413 C 150.07353,251.85894 167.02143,217.02859 208.32160,207.57212 C 208.32160,207.57212 168.65990,161.32509 121.69357,12.440270 C 211.69357,149.44027 323.87473,190.08578 385.88362,201.47812 z " id="path1932" sodipodi:nodetypes="cccccccs"/>
|
||||||
|
<path transform="matrix(1.07116, 0, 0, 1, 412.518, -199.49)" sodipodi:type="arc" style="fill: url(#radialGradient9010) rgb(0, 0, 0); fill-opacity: 1; stroke: none; stroke-width: 30; stroke-miterlimit: 4; stroke-dasharray: none; stroke-opacity: 1;" id="path1934" sodipodi:cx="-272.00000" sodipodi:cy="598.00000" sodipodi:rx="68.000000" sodipodi:ry="68.000000" d="M -204.00000 598.00000 A 68.000000 68.000000 0 1 1 -340.00000,598.00000 A 68.000000 68.000000 0 1 1 -204.00000 598.00000 z"/>
|
||||||
|
<path sodipodi:nodetypes="ccscs" id="path1936" d="M 385.88362,201.47812 C 505.43501,223.44223 659.42238,164.82405 714.32160,-0.0015300000 C 649.90356,227.13187 497.48814,312.46353 371.30643,277.40123 C 245.12472,242.33893 157.17674,250.88268 121.69357,12.440270 C 211.69357,149.44027 323.87473,190.08578 385.88362,201.47812 z " style="fill: url(#radialGradient9864) rgb(0, 0, 0); fill-opacity: 1; fill-rule: evenodd; stroke: none; stroke-width: 1; stroke-linecap: butt; stroke-linejoin: miter; stroke-miterlimit: 4; stroke-dasharray: none; stroke-opacity: 1;"/>
|
||||||
|
<path style="fill: url(#radialGradient9861) rgb(0, 0, 0); fill-opacity: 1; fill-rule: evenodd; stroke: none; stroke-width: 1px; stroke-linecap: butt; stroke-linejoin: miter; stroke-opacity: 1;" d="M 446.32160,358.51010 C 523.00811,548.75066 221.04253,542.84343 87.321600,459.51010 C 87.321600,459.51010 339.73245,511.61088 446.32160,358.51010 z " id="path1938" sodipodi:nodetypes="ccc"/>
|
||||||
|
<path sodipodi:type="arc" style="fill: url(#linearGradient9016) rgb(0, 0, 0); fill-opacity: 1; stroke: none; stroke-width: 1; stroke-miterlimit: 4; stroke-dasharray: none; stroke-opacity: 1;" id="path1940" sodipodi:cx="-51.750000" sodipodi:cy="499.75000" sodipodi:rx="83.750000" sodipodi:ry="83.750000" d="M 32.000000 499.75000 A 83.750000 83.750000 0 1 1 -135.50000,499.75000 A 83.750000 83.750000 0 1 1 32.000000 499.75000 z" transform="translate(392.822, -201.99)"/>
|
||||||
|
<path sodipodi:type="arc" style="fill: url(#linearGradient9018) rgb(0, 0, 0); fill-opacity: 1; stroke: none; stroke-width: 30; stroke-miterlimit: 4; stroke-dasharray: none; stroke-opacity: 1;" id="path1942" sodipodi:cx="-188.00000" sodipodi:cy="481.00000" sodipodi:rx="59.000000" sodipodi:ry="59.000000" d="M -129.00000 481.00000 A 59.000000 59.000000 0 1 1 -247.00000,481.00000 A 59.000000 59.000000 0 1 1 -129.00000 481.00000 z" transform="translate(391.322, -202.99)"/>
|
||||||
|
<path sodipodi:type="arc" style="fill: rgb(0, 0, 0); fill-opacity: 1; stroke: none; stroke-width: 1; stroke-miterlimit: 4; stroke-dasharray: none; stroke-opacity: 1;" id="path1944" sodipodi:cx="-38.750000" sodipodi:cy="520.25000" sodipodi:rx="35.750000" sodipodi:ry="35.750000" d="M -3.0000000 520.25000 A 35.750000 35.750000 0 1 1 -74.500000,520.25000 A 35.750000 35.750000 0 1 1 -3.0000000 520.25000 z" transform="translate(391.822, -204.99)"/>
|
||||||
|
<path style="fill: url(#linearGradient9855) rgb(0, 0, 0); fill-opacity: 1; fill-rule: evenodd; stroke: none; stroke-width: 1px; stroke-linecap: butt; stroke-linejoin: miter; stroke-opacity: 1;" d="M 136.32160,315.51010 C 73.262530,196.41910 -36.953840,284.17835 12.321600,387.51010 C 74.880900,518.69842 195.61094,427.48172 136.32160,315.51010 z " id="path1946" sodipodi:nodetypes="css"/>
|
||||||
|
<path sodipodi:type="arc" style="fill: rgb(0, 0, 0); fill-opacity: 1; stroke: none; stroke-width: 20; stroke-miterlimit: 4; stroke-dasharray: none; stroke-opacity: 1;" id="path1948" sodipodi:cx="-178.50000" sodipodi:cy="500.50000" sodipodi:rx="31.000000" sodipodi:ry="31.500000" d="M -147.50000 500.50000 A 31.000000 31.500000 0 1 1 -209.50000,500.50000 A 31.000000 31.500000 0 1 1 -147.50000 500.50000 z" transform="matrix(1.01613, 0, 0, 1.01587, 394.701, -211.934)"/>
|
||||||
|
<path sodipodi:type="arc" style="fill: rgb(255, 255, 255); fill-opacity: 1; stroke: rgb(255, 255, 255); stroke-width: 1; stroke-miterlimit: 4; stroke-dasharray: none; stroke-opacity: 1;" id="path1950" sodipodi:cx="-49.000000" sodipodi:cy="507.50000" sodipodi:rx="14.000000" sodipodi:ry="13.000000" d="M -35.000000 507.50000 A 14.000000 13.000000 0 1 1 -63.000000,507.50000 A 14.000000 13.000000 0 1 1 -35.000000 507.50000 z" transform="matrix(0.930968, 0, 0, 1, 388.914, -203.472)"/>
|
||||||
|
<path transform="translate(392.322, -203.49)" sodipodi:type="arc" style="fill: rgb(255, 255, 255); fill-opacity: 1; stroke: url(#radialGradient9026) rgb(0, 0, 0); stroke-width: 30; stroke-miterlimit: 4; stroke-dasharray: none; stroke-opacity: 1;" id="path1952" sodipodi:cx="-190.25000" sodipodi:cy="486.75000" sodipodi:rx="10.750000" sodipodi:ry="10.750000" d="M -179.50000 486.75000 A 10.750000 10.750000 0 1 1 -201.00000,486.75000 A 10.750000 10.750000 0 1 1 -179.50000 486.75000 z"/>
|
||||||
|
<path sodipodi:nodetypes="css" id="path1954" d="M 31.790805,261.49220 C -36.348714,317.47030 41.169697,374.80237 69.222032,351.31596 C 143.44775,289.17159 52.989655,244.07690 31.790805,261.49220 z " style="fill: url(#radialGradient11374) rgb(0, 0, 0); fill-opacity: 1; fill-rule: evenodd; stroke: none; stroke-width: 1px; stroke-linecap: butt; stroke-linejoin: miter; stroke-opacity: 1;"/>
|
||||||
|
<path sodipodi:nodetypes="cccc" id="path1494" d="M 129.40631,338.29051 C 129.40631,338.29051 124.81946,381.73155 82.534732,451.71997 C 140.70578,456.66260 165.49568,388.44502 146.00000,338.29051 L 129.40631,338.29051 z " style="fill: url(#radialGradient2249) rgb(0, 0, 0); fill-opacity: 1; fill-rule: evenodd; stroke: none; stroke-width: 1px; stroke-linecap: butt; stroke-linejoin: miter; stroke-opacity: 1;"/>
|
||||||
|
<path sodipodi:nodetypes="ccss" id="path2268" d="M 345.72439,511.60031 C 263.10369,523.48690 154.18206,501.17676 87.321600,459.51010 C 87.321600,459.51010 150.42431,472.53530 226.85067,466.42289 C 303.27702,460.31049 428.34509,499.71371 345.72439,511.60031 z " style="fill: url(#radialGradient2996) rgb(0, 0, 0); fill-opacity: 1; fill-rule: evenodd; stroke: none; stroke-width: 1px; stroke-linecap: butt; stroke-linejoin: miter; stroke-opacity: 1;"/>
|
||||||
|
</g>
|
||||||
|
</g>
|
||||||
|
</g>
|
||||||
|
<g inkscape:groupmode="layer" id="g1443" inkscape:label="bg"/>
|
||||||
|
</svg>
|
||||||
|
After Width: | Height: | Size: 27 KiB |
3662
fulltests/header.svg
3662
fulltests/header.svg
File diff suppressed because one or more lines are too long
|
Before Width: | Height: | Size: 208 KiB |
48
scour.py
48
scour.py
|
|
@ -52,16 +52,6 @@
|
||||||
# - Reduce #RRGGBB format to #RGB format when possible
|
# - Reduce #RRGGBB format to #RGB format when possible
|
||||||
# https://bugs.edge.launchpad.net/ubuntu/+source/human-icon-theme/+bug/361667/
|
# https://bugs.edge.launchpad.net/ubuntu/+source/human-icon-theme/+bug/361667/
|
||||||
|
|
||||||
# Some notes to not forget:
|
|
||||||
# - removing empty nested groups also potentially loses some semantic information
|
|
||||||
# (i.e. the following button:
|
|
||||||
# <g>
|
|
||||||
# <rect .../>
|
|
||||||
# <text .../>
|
|
||||||
# </g>
|
|
||||||
# will be flattened)
|
|
||||||
|
|
||||||
|
|
||||||
# necessary to get true division
|
# necessary to get true division
|
||||||
from __future__ import division
|
from __future__ import division
|
||||||
|
|
||||||
|
|
@ -74,6 +64,8 @@ import math
|
||||||
import base64
|
import base64
|
||||||
import os.path
|
import os.path
|
||||||
import urllib
|
import urllib
|
||||||
|
import svg_regex
|
||||||
|
from svg_regex import svg_parser
|
||||||
|
|
||||||
APP = 'scour'
|
APP = 'scour'
|
||||||
VER = '0.10'
|
VER = '0.10'
|
||||||
|
|
@ -610,9 +602,41 @@ def repairStyle(node):
|
||||||
|
|
||||||
return num
|
return num
|
||||||
|
|
||||||
# does nothing at the moment but waste time
|
# This method will do the following:
|
||||||
|
# - parse the path data and reserialize
|
||||||
def cleanPath(element) :
|
def cleanPath(element) :
|
||||||
path = element.getAttribute('d')
|
path = svg_parser.parse(element.getAttribute('d'))
|
||||||
|
for (cmd,dataset) in path:
|
||||||
|
if not dataset == None:
|
||||||
|
for data in dataset:
|
||||||
|
pass
|
||||||
|
element.setAttribute('d', serializePath(path))
|
||||||
|
|
||||||
|
# - reserialize the path data with some cleanups:
|
||||||
|
# - removes scientific notation (exponents)
|
||||||
|
# - removes trailing zeros after the decimal
|
||||||
|
# - removes extraneous whitespace
|
||||||
|
# - adds commas between all values in a subcommand
|
||||||
|
def serializePath(pathObj):
|
||||||
|
pathStr = ""
|
||||||
|
# print pathObj
|
||||||
|
for (cmd,dataset) in pathObj:
|
||||||
|
pathStr += cmd
|
||||||
|
if not dataset == None:
|
||||||
|
for data in dataset:
|
||||||
|
try:
|
||||||
|
c = 0
|
||||||
|
for coord in data:
|
||||||
|
# if coord can be an integer without loss of precision, go for it
|
||||||
|
if int(coord) == coord: pathStr += str(int(coord))
|
||||||
|
else: pathStr += str(coord)
|
||||||
|
if c < len(data)-1:
|
||||||
|
pathStr += ','
|
||||||
|
c += 1
|
||||||
|
except TypeError:
|
||||||
|
pathStr += str(data)
|
||||||
|
pathStr += ' '
|
||||||
|
return pathStr
|
||||||
|
|
||||||
# converts raster references to inline images
|
# converts raster references to inline images
|
||||||
# NOTE: there are size limits to base64-encoding handling in browsers
|
# NOTE: there are size limits to base64-encoding handling in browsers
|
||||||
|
|
|
||||||
280
svg_regex.py
Normal file
280
svg_regex.py
Normal file
|
|
@ -0,0 +1,280 @@
|
||||||
|
# This software is OSI Certified Open Source Software.
|
||||||
|
# OSI Certified is a certification mark of the Open Source Initiative.
|
||||||
|
#
|
||||||
|
# Copyright (c) 2006, Enthought, Inc.
|
||||||
|
# All rights reserved.
|
||||||
|
#
|
||||||
|
# Redistribution and use in source and binary forms, with or without
|
||||||
|
# modification, are permitted provided that the following conditions are met:
|
||||||
|
#
|
||||||
|
# * Redistributions of source code must retain the above copyright notice, this
|
||||||
|
# list of conditions and the following disclaimer.
|
||||||
|
# * Redistributions in binary form must reproduce the above copyright notice,
|
||||||
|
# this list of conditions and the following disclaimer in the documentation
|
||||||
|
# and/or other materials provided with the distribution.
|
||||||
|
# * Neither the name of Enthought, Inc. nor the names of its contributors may
|
||||||
|
# be used to endorse or promote products derived from this software without
|
||||||
|
# specific prior written permission.
|
||||||
|
#
|
||||||
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
||||||
|
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||||||
|
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||||
|
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
|
||||||
|
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||||
|
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||||
|
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
||||||
|
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||||
|
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
|
||||||
|
""" Small hand-written recursive descent parser for SVG <path> data.
|
||||||
|
|
||||||
|
|
||||||
|
In [1]: from svg_regex import svg_parser
|
||||||
|
|
||||||
|
In [3]: svg_parser.parse('M 10,20 30,40V50 60 70')
|
||||||
|
Out[3]: [('M', [(10.0, 20.0), (30.0, 40.0)]), ('V', [50.0, 60.0, 70.0])]
|
||||||
|
|
||||||
|
In [4]: svg_parser.parse('M 0.6051.5') # An edge case
|
||||||
|
Out[4]: [('M', [(0.60509999999999997, 0.5)])]
|
||||||
|
|
||||||
|
In [5]: svg_parser.parse('M 100-200') # Another edge case
|
||||||
|
Out[5]: [('M', [(100.0, -200.0)])]
|
||||||
|
"""
|
||||||
|
|
||||||
|
import re
|
||||||
|
|
||||||
|
|
||||||
|
# Sentinel.
|
||||||
|
class _EOF(object):
|
||||||
|
def __repr__(self):
|
||||||
|
return 'EOF'
|
||||||
|
EOF = _EOF()
|
||||||
|
|
||||||
|
lexicon = [
|
||||||
|
('float', r'[-\+]?(?:(?:[0-9]*\.[0-9]+)|(?:[0-9]+\.))(?:[Ee][-\+]?[0-9]+)?'),
|
||||||
|
('int', r'[-\+]?[0-9]+'),
|
||||||
|
('command', r'[AaCcHhLlMmQqSsTtVvZz]'),
|
||||||
|
]
|
||||||
|
|
||||||
|
|
||||||
|
class Lexer(object):
|
||||||
|
""" Break SVG path data into tokens.
|
||||||
|
|
||||||
|
The SVG spec requires that tokens are greedy. This lexer relies on Python's
|
||||||
|
regexes defaulting to greediness.
|
||||||
|
|
||||||
|
This style of implementation was inspired by this article:
|
||||||
|
|
||||||
|
http://www.gooli.org/blog/a-simple-lexer-in-python/
|
||||||
|
"""
|
||||||
|
def __init__(self, lexicon):
|
||||||
|
self.lexicon = lexicon
|
||||||
|
parts = []
|
||||||
|
for name, regex in lexicon:
|
||||||
|
parts.append('(?P<%s>%s)' % (name, regex))
|
||||||
|
self.regex_string = '|'.join(parts)
|
||||||
|
self.regex = re.compile(self.regex_string)
|
||||||
|
|
||||||
|
def lex(self, text):
|
||||||
|
""" Yield (token_type, str_data) tokens.
|
||||||
|
|
||||||
|
The last token will be (EOF, None) where EOF is the singleton object
|
||||||
|
defined in this module.
|
||||||
|
"""
|
||||||
|
for match in self.regex.finditer(text):
|
||||||
|
for name, _ in self.lexicon:
|
||||||
|
m = match.group(name)
|
||||||
|
if m is not None:
|
||||||
|
yield (name, m)
|
||||||
|
break
|
||||||
|
yield (EOF, None)
|
||||||
|
|
||||||
|
svg_lexer = Lexer(lexicon)
|
||||||
|
|
||||||
|
|
||||||
|
class SVGPathParser(object):
|
||||||
|
""" Parse SVG <path> data into a list of commands.
|
||||||
|
|
||||||
|
Each distinct command will take the form of a tuple (command, data). The
|
||||||
|
`command` is just the character string that starts the command group in the
|
||||||
|
<path> data, so 'M' for absolute moveto, 'm' for relative moveto, 'Z' for
|
||||||
|
closepath, etc. The kind of data it carries with it depends on the command.
|
||||||
|
For 'Z' (closepath), it's just None. The others are lists of individual
|
||||||
|
argument groups. Multiple elements in these lists usually mean to repeat the
|
||||||
|
command. The notable exception is 'M' (moveto) where only the first element
|
||||||
|
is truly a moveto. The remainder are implicit linetos.
|
||||||
|
|
||||||
|
See the SVG documentation for the interpretation of the individual elements
|
||||||
|
for each command.
|
||||||
|
|
||||||
|
The main method is `parse(text)`. It can only consume actual strings, not
|
||||||
|
filelike objects or iterators.
|
||||||
|
"""
|
||||||
|
|
||||||
|
def __init__(self, lexer=svg_lexer):
|
||||||
|
self.lexer = lexer
|
||||||
|
|
||||||
|
self.command_dispatch = {
|
||||||
|
'Z': self.rule_closepath,
|
||||||
|
'z': self.rule_closepath,
|
||||||
|
'M': self.rule_moveto_or_lineto,
|
||||||
|
'm': self.rule_moveto_or_lineto,
|
||||||
|
'L': self.rule_moveto_or_lineto,
|
||||||
|
'l': self.rule_moveto_or_lineto,
|
||||||
|
'H': self.rule_orthogonal_lineto,
|
||||||
|
'h': self.rule_orthogonal_lineto,
|
||||||
|
'V': self.rule_orthogonal_lineto,
|
||||||
|
'v': self.rule_orthogonal_lineto,
|
||||||
|
'C': self.rule_curveto3,
|
||||||
|
'c': self.rule_curveto3,
|
||||||
|
'S': self.rule_curveto2,
|
||||||
|
's': self.rule_curveto2,
|
||||||
|
'Q': self.rule_curveto2,
|
||||||
|
'q': self.rule_curveto2,
|
||||||
|
'T': self.rule_curveto1,
|
||||||
|
't': self.rule_curveto1,
|
||||||
|
'A': self.rule_elliptical_arc,
|
||||||
|
'a': self.rule_elliptical_arc,
|
||||||
|
}
|
||||||
|
|
||||||
|
self.number_tokens = set(['int', 'float'])
|
||||||
|
|
||||||
|
def parse(self, text):
|
||||||
|
""" Parse a string of SVG <path> data.
|
||||||
|
"""
|
||||||
|
next = self.lexer.lex(text).next
|
||||||
|
token = next()
|
||||||
|
return self.rule_svg_path(next, token)
|
||||||
|
|
||||||
|
def rule_svg_path(self, next, token):
|
||||||
|
commands = []
|
||||||
|
while token[0] is not EOF:
|
||||||
|
if token[0] != 'command':
|
||||||
|
raise SyntaxError("expecting a command; got %r" % (token,))
|
||||||
|
rule = self.command_dispatch[token[1]]
|
||||||
|
command_group, token = rule(next, token)
|
||||||
|
commands.append(command_group)
|
||||||
|
return commands
|
||||||
|
|
||||||
|
def rule_closepath(self, next, token):
|
||||||
|
command = token[1]
|
||||||
|
token = next()
|
||||||
|
return (command, None), token
|
||||||
|
|
||||||
|
def rule_moveto_or_lineto(self, next, token):
|
||||||
|
command = token[1]
|
||||||
|
token = next()
|
||||||
|
coordinates = []
|
||||||
|
while token[0] in self.number_tokens:
|
||||||
|
pair, token = self.rule_coordinate_pair(next, token)
|
||||||
|
coordinates.append(pair)
|
||||||
|
return (command, coordinates), token
|
||||||
|
|
||||||
|
def rule_orthogonal_lineto(self, next, token):
|
||||||
|
command = token[1]
|
||||||
|
token = next()
|
||||||
|
coordinates = []
|
||||||
|
while token[0] in self.number_tokens:
|
||||||
|
coord, token = self.rule_coordinate(next, token)
|
||||||
|
coordinates.append(coord)
|
||||||
|
return (command, coordinates), token
|
||||||
|
|
||||||
|
def rule_curveto3(self, next, token):
|
||||||
|
command = token[1]
|
||||||
|
token = next()
|
||||||
|
coordinates = []
|
||||||
|
while token[0] in self.number_tokens:
|
||||||
|
pair1, token = self.rule_coordinate_pair(next, token)
|
||||||
|
pair2, token = self.rule_coordinate_pair(next, token)
|
||||||
|
pair3, token = self.rule_coordinate_pair(next, token)
|
||||||
|
coordinates.append((pair1, pair2, pair3))
|
||||||
|
return (command, coordinates), token
|
||||||
|
|
||||||
|
def rule_curveto2(self, next, token):
|
||||||
|
command = token[1]
|
||||||
|
token = next()
|
||||||
|
coordinates = []
|
||||||
|
while token[0] in self.number_tokens:
|
||||||
|
pair1, token = self.rule_coordinate_pair(next, token)
|
||||||
|
pair2, token = self.rule_coordinate_pair(next, token)
|
||||||
|
coordinates.append((pair1, pair2))
|
||||||
|
return (command, coordinates), token
|
||||||
|
|
||||||
|
def rule_curveto1(self, next, token):
|
||||||
|
command = token[1]
|
||||||
|
token = next()
|
||||||
|
coordinates = []
|
||||||
|
while token[0] in self.number_tokens:
|
||||||
|
pair1, token = self.rule_coordinate_pair(next, token)
|
||||||
|
coordinates.append(pair1)
|
||||||
|
return (command, coordinates), token
|
||||||
|
|
||||||
|
def rule_elliptical_arc(self, next, token):
|
||||||
|
command = token[1]
|
||||||
|
token = next()
|
||||||
|
arguments = []
|
||||||
|
while token[0] in self.number_tokens:
|
||||||
|
rx = float(token[1])
|
||||||
|
if rx < 0.0:
|
||||||
|
raise SyntaxError("expecting a nonnegative number; got %r" % (token,))
|
||||||
|
|
||||||
|
token = next()
|
||||||
|
if token[0] not in self.number_tokens:
|
||||||
|
raise SyntaxError("expecting a number; got %r" % (token,))
|
||||||
|
ry = float(token[1])
|
||||||
|
if ry < 0.0:
|
||||||
|
raise SyntaxError("expecting a nonnegative number; got %r" % (token,))
|
||||||
|
|
||||||
|
token = next()
|
||||||
|
if token[0] not in self.number_tokens:
|
||||||
|
raise SyntaxError("expecting a number; got %r" % (token,))
|
||||||
|
axis_rotation = float(token[1])
|
||||||
|
|
||||||
|
token = next()
|
||||||
|
if token[1] not in ('0', '1'):
|
||||||
|
raise SyntaxError("expecting a boolean flag; got %r" % (token,))
|
||||||
|
large_arc_flag = bool(int(token[1]))
|
||||||
|
|
||||||
|
token = next()
|
||||||
|
if token[1] not in ('0', '1'):
|
||||||
|
raise SyntaxError("expecting a boolean flag; got %r" % (token,))
|
||||||
|
sweep_flag = bool(int(token[1]))
|
||||||
|
|
||||||
|
token = next()
|
||||||
|
if token[0] not in self.number_tokens:
|
||||||
|
raise SyntaxError("expecting a number; got %r" % (token,))
|
||||||
|
x = float(token[1])
|
||||||
|
|
||||||
|
token = next()
|
||||||
|
if token[0] not in self.number_tokens:
|
||||||
|
raise SyntaxError("expecting a number; got %r" % (token,))
|
||||||
|
y = float(token[1])
|
||||||
|
|
||||||
|
token = next()
|
||||||
|
arguments.append(((rx,ry), axis_rotation, large_arc_flag, sweep_flag, (x,y)))
|
||||||
|
|
||||||
|
return (command, arguments), token
|
||||||
|
|
||||||
|
def rule_coordinate(self, next, token):
|
||||||
|
if token[0] not in self.number_tokens:
|
||||||
|
raise SyntaxError("expecting a number; got %r" % (token,))
|
||||||
|
x = float(token[1])
|
||||||
|
token = next()
|
||||||
|
return x, token
|
||||||
|
|
||||||
|
|
||||||
|
def rule_coordinate_pair(self, next, token):
|
||||||
|
# Inline these since this rule is so common.
|
||||||
|
if token[0] not in self.number_tokens:
|
||||||
|
raise SyntaxError("expecting a number; got %r" % (token,))
|
||||||
|
x = float(token[1])
|
||||||
|
token = next()
|
||||||
|
if token[0] not in self.number_tokens:
|
||||||
|
raise SyntaxError("expecting a number; got %r" % (token,))
|
||||||
|
y = float(token[1])
|
||||||
|
token = next()
|
||||||
|
return (x,y), token
|
||||||
|
|
||||||
|
|
||||||
|
svg_parser = SVGPathParser()
|
||||||
7
unittests/path-simple-triangle.svg
Normal file
7
unittests/path-simple-triangle.svg
Normal file
|
|
@ -0,0 +1,7 @@
|
||||||
|
<svg viewBox="0 0 400 400" xmlns="http://www.w3.org/2000/svg" version="1.1">
|
||||||
|
<path d="M 300. 100 h-50-1.5E+2
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
l100.00000,2000.0E-01 z" fill="red" />
|
||||||
|
</svg>
|
||||||
|
After Width: | Height: | Size: 167 B |
Loading…
Add table
Add a link
Reference in a new issue