728 lines
23 KiB
Python
728 lines
23 KiB
Python
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#
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# KiCad python module for interpreting generic netlists which can be used
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# to generate Bills of materials, etc.
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#
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# No string formatting is used on purpose as the only string formatting that
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# is current compatible with python 2.4+ to 3.0+ is the '%' method, and that
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# is due to be deprecated in 3.0+ soon
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#
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from __future__ import print_function
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import sys
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import xml.sax as sax
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import re
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import pdb
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#-----<Configure>----------------------------------------------------------------
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# excluded_fields is a list of regular expressions. If any one matches a field
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# from either a component or a libpart, then that will not be included as a
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# column in the BOM. Otherwise all columns from all used libparts and components
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# will be unionized and will appear. Some fields are impossible to blacklist, such
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# as Ref, Value, Footprint, and Datasheet. Additionally Qty and Item are supplied
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# unconditionally as columns, and may not be removed.
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excluded_fields = [
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#'Price@1000'
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]
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# You may exlude components from the BOM by either:
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#
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# 1) adding a custom field named "Installed" to your components and filling it
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# with a value of "NU" (Normally Uninstalled).
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# See netlist.getInterestingComponents(), or
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#
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# 2) blacklisting it in any of the three following lists:
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# regular expressions which match component 'Reference' fields of components that
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# are to be excluded from the BOM.
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excluded_references = [
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'TP[0-9]+' # all test points
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]
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# regular expressions which match component 'Value' fields of components that
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# are to be excluded from the BOM.
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excluded_values = [
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'MOUNTHOLE',
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'SCOPETEST',
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'MOUNT_HOLE',
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'SOLDER_BRIDGE.*'
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]
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# regular expressions which match component 'Footprint' fields of components that
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# are to be excluded from the BOM.
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excluded_footprints = [
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#'MOUNTHOLE'
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]
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#-----</Configure>---------------------------------------------------------------
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class xmlElement():
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"""xml element which can represent all nodes of the netlist tree. It can be
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used to easily generate various output formats by propogating format
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requests to children recursively.
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"""
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def __init__(self, name, parent=None):
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self.name = name
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self.attributes = {}
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self.parent = parent
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self.chars = ""
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self.children = []
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def __str__(self):
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"""String representation of this netlist element
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"""
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return self.name + "[" + self.chars + "]" + " attr_count:" + str(len(self.attributes))
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def formatXML(self, nestLevel=0, amChild=False):
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"""Return this element formatted as XML
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Keywords:
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nestLevel -- increases by one for each level of nesting.
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amChild -- If set to True, the start of document is not returned.
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"""
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s = ""
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indent = ""
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for i in range(nestLevel):
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indent += " "
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if not amChild:
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s = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
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s += indent + "<" + self.name
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for a in self.attributes:
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s += " " + a + "=\"" + self.attributes[a] + "\""
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if (len(self.chars) == 0) and (len(self.children) == 0):
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s += "/>"
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else:
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s += ">" + self.chars
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for c in self.children:
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s += "\n"
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s += c.formatXML(nestLevel+1, True)
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if (len(self.children) > 0):
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s += "\n" + indent
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if (len(self.children) > 0) or (len(self.chars) > 0):
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s += "</" + self.name + ">"
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return s
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def formatHTML(self, amChild=False):
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"""Return this element formatted as HTML
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Keywords:
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amChild -- If set to True, the start of document is not returned
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"""
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s = ""
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if not amChild:
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s = """<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title></title>
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</head>
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<body>
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<table>
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"""
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s += "<tr><td><b>" + self.name + "</b><br>" + self.chars + "</td><td><ul>"
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for a in self.attributes:
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s += "<li>" + a + " = " + self.attributes[a] + "</li>"
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s += "</ul></td></tr>\n"
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for c in self.children:
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s += c.formatHTML(True)
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if not amChild:
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s += """</table>
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</body>
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</html>"""
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return s
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def addAttribute(self, attr, value):
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"""Add an attribute to this element"""
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self.attributes[attr] = value
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def setAttribute(self, attr, value):
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"""Set an attributes value - in fact does the same thing as add
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attribute
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"""
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self.attributes[attr] = value
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def setChars(self, chars):
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"""Set the characters for this element"""
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self.chars = chars
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def addChars(self, chars):
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"""Add characters (textual value) to this element"""
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self.chars += chars
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def addChild(self, child):
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"""Add a child element to this element"""
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self.children.append(child)
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return self.children[len(self.children) - 1]
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def getParent(self):
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"""Get the parent of this element (Could be None)"""
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return self.parent
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def getChild(self, name):
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"""Returns the first child element named 'name'
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Keywords:
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name -- The name of the child element to return"""
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for child in self.children:
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if child.name == name:
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return child
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return None
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def getChildren(self, name=None):
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if name:
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# return _all_ children named "name"
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ret = []
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for child in self.children:
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if child.name == name:
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ret.append(child)
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return ret
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else:
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return self.children
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def get(self, elemName, attribute="", attrmatch=""):
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"""Return the text data for either an attribute or an xmlElement
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"""
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if (self.name == elemName):
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if attribute != "":
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try:
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if attrmatch != "":
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if self.attributes[attribute] == attrmatch:
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return self.chars
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else:
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return self.attributes[attribute]
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except AttributeError:
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return ""
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else:
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return self.chars
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for child in self.children:
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ret = child.get(elemName, attribute, attrmatch)
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if ret != "":
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return ret
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return ""
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class libpart():
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"""Class for a library part, aka 'libpart' in the xml netlist file.
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(Components in eeschema are instantiated from library parts.)
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This part class is implemented by wrapping an xmlElement with accessors.
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This xmlElement instance is held in field 'element'.
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"""
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def __init__(self, xml_element):
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#
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self.element = xml_element
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#def __str__(self):
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# simply print the xmlElement associated with this part
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#return str(self.element)
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def getLibName(self):
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return self.element.get("libpart", "lib")
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def getPartName(self):
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return self.element.get("libpart", "part")
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def getDescription(self):
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return self.element.get("description")
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def getField(self, name):
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return self.element.get("field", "name", name)
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def getFieldNames(self):
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"""Return a list of field names in play for this libpart.
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"""
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fieldNames = []
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fields = self.element.getChild('fields')
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if fields:
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for f in fields.getChildren():
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fieldNames.append( f.get('field','name') )
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return fieldNames
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def getDatasheet(self):
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return self.getField("Datasheet")
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def getFootprint(self):
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return self.getField("Footprint")
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def getAliases(self):
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"""Return a list of aliases or None"""
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aliases = self.element.getChild("aliases")
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if aliases:
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ret = []
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children = aliases.getChildren()
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# grab the text out of each child:
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for child in children:
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ret.append( child.get("alias") )
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return ret
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return None
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class comp():
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"""Class for a component, aka 'comp' in the xml netlist file.
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This component class is implemented by wrapping an xmlElement instance
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with accessors. The xmlElement is held in field 'element'.
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"""
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def __init__(self, xml_element):
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self.element = xml_element
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self.libpart = None
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# Set to true when this component is included in a component group
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self.grouped = False
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def __eq__(self, other):
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"""Equlivalency operator, remember this can be easily overloaded"""
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result = False
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if self.getValue() == other.getValue():
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if self.getLibName() == other.getLibName():
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if self.getPartName() == other.getPartName():
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result = True
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return result
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def setLibPart(self, part):
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self.libpart = part
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def getLibPart(self):
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return self.libpart
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def getPartName(self):
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return self.element.get("libsource", "part")
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def getLibName(self):
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return self.element.get("libsource", "lib")
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def setValue(self, value):
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"""Set the value of this component"""
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v = self.element.getChild("value")
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if v:
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v.setChars(value)
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def getValue(self):
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return self.element.get("value")
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def getField(self, name, libraryToo=True):
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"""Return the value of a field named name. The component is first
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checked for the field, and then the components library part is checked
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for the field. If the field doesn't exist in either, an empty string is
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returned
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Keywords:
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name -- The name of the field to return the value for
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libraryToo -- look in the libpart's fields for the same name if not found
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in component itself
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"""
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field = self.element.get("field", "name", name)
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if field == "" and libraryToo:
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field = self.libpart.getField(name)
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return field
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def getFieldNames(self):
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"""Return a list of field names in play for this component. Mandatory
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fields are not included, and they are: Value, Footprint, Datasheet, Ref.
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The netlist format only includes fields with non-empty values. So if a field
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is empty, it will not be present in the returned list.
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"""
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fieldNames = []
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fields = self.element.getChild('fields')
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if fields:
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for f in fields.getChildren():
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fieldNames.append( f.get('field','name') )
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return fieldNames
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def getRef(self):
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return self.element.get("comp", "ref")
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def getFootprint(self, libraryToo=True):
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ret = self.element.get("footprint")
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if ret =="" and libraryToo:
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ret = self.libpart.getFootprint()
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return ret
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def getDatasheet(self, libraryToo=True):
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ret = self.element.get("datasheet")
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if ret == '' and libraryToo:
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ret = self.libpart.getDatasheet()
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return ret
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def getTimestamp(self):
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return self.element.get("tstamp")
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def getDescription(self):
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return self.libpart.getDescription()
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class netlist():
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""" Kicad generic netlist class. Generally loaded from a kicad generic
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netlist file. Includes several helper functions to ease BOM creating
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scripts
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"""
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def __init__(self, fname=""):
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"""Initialiser for the genericNetlist class
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Keywords:
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fname -- The name of the generic netlist file to open (Optional)
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"""
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self.design = None
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self.components = []
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self.libparts = []
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self.libraries = []
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self.nets = []
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# The entire tree is loaded into self.tree
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self.tree = []
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self._curr_element = None
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# component blacklist regexs, made from exluded_* above.
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self.excluded_references = []
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self.excluded_values = []
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||
|
|
self.excluded_footprints = []
|
||
|
|
|
||
|
|
if fname != "":
|
||
|
|
self.load(fname)
|
||
|
|
|
||
|
|
def addChars(self, content):
|
||
|
|
"""Add characters to the current element"""
|
||
|
|
self._curr_element.addChars(content)
|
||
|
|
|
||
|
|
def addElement(self, name):
|
||
|
|
"""Add a new kicad generic element to the list"""
|
||
|
|
if self._curr_element == None:
|
||
|
|
self.tree = xmlElement(name)
|
||
|
|
self._curr_element = self.tree
|
||
|
|
else:
|
||
|
|
self._curr_element = self._curr_element.addChild(
|
||
|
|
xmlElement(name, self._curr_element))
|
||
|
|
|
||
|
|
# If this element is a component, add it to the components list
|
||
|
|
if self._curr_element.name == "comp":
|
||
|
|
self.components.append(comp(self._curr_element))
|
||
|
|
|
||
|
|
# Assign the design element
|
||
|
|
if self._curr_element.name == "design":
|
||
|
|
self.design = self._curr_element
|
||
|
|
|
||
|
|
# If this element is a library part, add it to the parts list
|
||
|
|
if self._curr_element.name == "libpart":
|
||
|
|
self.libparts.append(libpart(self._curr_element))
|
||
|
|
|
||
|
|
# If this element is a net, add it to the nets list
|
||
|
|
if self._curr_element.name == "net":
|
||
|
|
self.nets.append(self._curr_element)
|
||
|
|
|
||
|
|
# If this element is a library, add it to the libraries list
|
||
|
|
if self._curr_element.name == "library":
|
||
|
|
self.libraries.append(self._curr_element)
|
||
|
|
|
||
|
|
return self._curr_element
|
||
|
|
|
||
|
|
def endDocument(self):
|
||
|
|
"""Called when the netlist document has been fully parsed"""
|
||
|
|
# When the document is complete, the library parts must be linked to
|
||
|
|
# the components as they are seperate in the tree so as not to
|
||
|
|
# duplicate library part information for every component
|
||
|
|
for c in self.components:
|
||
|
|
for p in self.libparts:
|
||
|
|
if p.getLibName() == c.getLibName():
|
||
|
|
if p.getPartName() == c.getPartName():
|
||
|
|
c.setLibPart(p)
|
||
|
|
break
|
||
|
|
else:
|
||
|
|
aliases = p.getAliases()
|
||
|
|
if aliases and self.aliasMatch( c.getPartName(), aliases ):
|
||
|
|
c.setLibPart(p)
|
||
|
|
break;
|
||
|
|
|
||
|
|
if not c.getLibPart():
|
||
|
|
print( 'missing libpart for ref:', c.getRef(), c.getPartName(), c.getLibName() )
|
||
|
|
|
||
|
|
|
||
|
|
def aliasMatch(self, partName, aliasList):
|
||
|
|
for alias in aliasList:
|
||
|
|
if partName == alias:
|
||
|
|
return True
|
||
|
|
return False
|
||
|
|
|
||
|
|
def endElement(self):
|
||
|
|
"""End the current element and switch to its parent"""
|
||
|
|
self._curr_element = self._curr_element.getParent()
|
||
|
|
|
||
|
|
def getDate(self):
|
||
|
|
"""Return the date + time string generated by the tree creation tool"""
|
||
|
|
return self.design.get("date")
|
||
|
|
|
||
|
|
def getSource(self):
|
||
|
|
"""Return the source string for the design"""
|
||
|
|
return self.design.get("source")
|
||
|
|
|
||
|
|
def getTool(self):
|
||
|
|
"""Return the tool string which was used to create the netlist tree"""
|
||
|
|
return self.design.get("tool")
|
||
|
|
|
||
|
|
def gatherComponentFieldUnion(self, components=None):
|
||
|
|
"""Gather the complete 'set' of unique component fields, fields found in any component.
|
||
|
|
"""
|
||
|
|
if not components:
|
||
|
|
components=self.components
|
||
|
|
|
||
|
|
s = set()
|
||
|
|
for c in components:
|
||
|
|
s.update( c.getFieldNames() )
|
||
|
|
|
||
|
|
# omit anything matching any regex in excluded_fields
|
||
|
|
ret = set()
|
||
|
|
for field in s:
|
||
|
|
exclude = False
|
||
|
|
for rex in excluded_fields:
|
||
|
|
if re.match( rex, field ):
|
||
|
|
exclude = True
|
||
|
|
break
|
||
|
|
if not exclude:
|
||
|
|
ret.add(field)
|
||
|
|
|
||
|
|
return ret # this is a python 'set'
|
||
|
|
|
||
|
|
def gatherLibPartFieldUnion(self):
|
||
|
|
"""Gather the complete 'set' of part fields, fields found in any part.
|
||
|
|
"""
|
||
|
|
s = set()
|
||
|
|
for p in self.libparts:
|
||
|
|
s.update( p.getFieldNames() )
|
||
|
|
|
||
|
|
# omit anything matching any regex in excluded_fields
|
||
|
|
ret = set()
|
||
|
|
for field in s:
|
||
|
|
exclude = False
|
||
|
|
for rex in excluded_fields:
|
||
|
|
if re.match( rex, field ):
|
||
|
|
exclude = True
|
||
|
|
break
|
||
|
|
if not exclude:
|
||
|
|
ret.add(field)
|
||
|
|
|
||
|
|
return ret # this is a python 'set'
|
||
|
|
|
||
|
|
def getInterestingComponents(self):
|
||
|
|
"""Return a subset of all components, those that should show up in the BOM.
|
||
|
|
Omit those that should not, by consulting the blacklists:
|
||
|
|
excluded_values, excluded_refs, and excluded_footprints, which hold one
|
||
|
|
or more regular expressions. If any of the the regular expressions match
|
||
|
|
the corresponding field's value in a component, then the component is exluded.
|
||
|
|
"""
|
||
|
|
|
||
|
|
# pre-compile all the regex expressions:
|
||
|
|
del self.excluded_references[:]
|
||
|
|
del self.excluded_values[:]
|
||
|
|
del self.excluded_footprints[:]
|
||
|
|
|
||
|
|
for rex in excluded_references:
|
||
|
|
self.excluded_references.append( re.compile( rex ) )
|
||
|
|
|
||
|
|
for rex in excluded_values:
|
||
|
|
self.excluded_values.append( re.compile( rex ) )
|
||
|
|
|
||
|
|
for rex in excluded_footprints:
|
||
|
|
self.excluded_footprints.append( re.compile( rex ) )
|
||
|
|
|
||
|
|
# the subset of components to return, considered as "interesting".
|
||
|
|
ret = []
|
||
|
|
|
||
|
|
# run each component thru a series of tests, if it passes all, then add it
|
||
|
|
# to the interesting list 'ret'.
|
||
|
|
for c in self.components:
|
||
|
|
exclude = False
|
||
|
|
if not exclude:
|
||
|
|
for refs in self.excluded_references:
|
||
|
|
if refs.match(c.getRef()):
|
||
|
|
exclude = True
|
||
|
|
break;
|
||
|
|
if not exclude:
|
||
|
|
for vals in self.excluded_values:
|
||
|
|
if vals.match(c.getValue()):
|
||
|
|
exclude = True
|
||
|
|
break;
|
||
|
|
if not exclude:
|
||
|
|
for mods in self.excluded_footprints:
|
||
|
|
if mods.match(c.getFootprint()):
|
||
|
|
exclude = True
|
||
|
|
break;
|
||
|
|
|
||
|
|
if not exclude:
|
||
|
|
# This is a fairly personal way to flag DNS (Do Not Stuff). NU for
|
||
|
|
# me means Normally Uninstalled. You can 'or in' another expression here.
|
||
|
|
if c.getField( "Installed" ) == 'NU':
|
||
|
|
exclude = True
|
||
|
|
|
||
|
|
if not exclude:
|
||
|
|
ret.append(c)
|
||
|
|
|
||
|
|
# Sort first by ref as this makes for easier to read BOM's
|
||
|
|
ret.sort(key=lambda g: g.getRef())
|
||
|
|
|
||
|
|
return ret
|
||
|
|
|
||
|
|
|
||
|
|
def groupComponents(self, components = None):
|
||
|
|
"""Return a list of component lists. Components are grouped together
|
||
|
|
when the value, library and part identifiers match.
|
||
|
|
|
||
|
|
Keywords:
|
||
|
|
components -- is a list of components, typically an interesting subset
|
||
|
|
of all components, or None. If None, then all components are looked at.
|
||
|
|
"""
|
||
|
|
if not components:
|
||
|
|
components = self.components
|
||
|
|
|
||
|
|
groups = []
|
||
|
|
|
||
|
|
# Make sure to start off will all components ungrouped to begin with
|
||
|
|
for c in components:
|
||
|
|
c.grouped = False
|
||
|
|
|
||
|
|
# Group components based on the value, library and part identifiers
|
||
|
|
for c in components:
|
||
|
|
if c.grouped == False:
|
||
|
|
c.grouped = True
|
||
|
|
newgroup = []
|
||
|
|
newgroup.append(c)
|
||
|
|
|
||
|
|
# Check every other ungrouped component against this component
|
||
|
|
# and add to the group as necessary
|
||
|
|
for ci in components:
|
||
|
|
if ci.grouped == False and ci == c:
|
||
|
|
newgroup.append(ci)
|
||
|
|
ci.grouped = True
|
||
|
|
|
||
|
|
# Add the new component group to the groups list
|
||
|
|
groups.append(newgroup)
|
||
|
|
|
||
|
|
# Each group is a list of components, we need to sort each list first
|
||
|
|
# to get them in order as this makes for easier to read BOM's
|
||
|
|
for g in groups:
|
||
|
|
g = sorted(g, key=lambda g: g.getRef())
|
||
|
|
|
||
|
|
# Finally, sort the groups to order the references alphabetically
|
||
|
|
groups = sorted(groups, key=lambda group: group[0].getRef())
|
||
|
|
|
||
|
|
return groups
|
||
|
|
|
||
|
|
def getGroupField(self, group, field):
|
||
|
|
"""Return the whatever is known about the given field by consulting each
|
||
|
|
component in the group. If any of them know something about the property/field,
|
||
|
|
then return that first non-blank value.
|
||
|
|
"""
|
||
|
|
for c in group:
|
||
|
|
ret = c.getField(field, False)
|
||
|
|
if ret != '':
|
||
|
|
return ret
|
||
|
|
return group[0].getLibPart().getField(field)
|
||
|
|
|
||
|
|
def getGroupFootprint(self, group):
|
||
|
|
"""Return the whatever is known about the Footprint by consulting each
|
||
|
|
component in the group. If any of them know something about the Footprint,
|
||
|
|
then return that first non-blank value.
|
||
|
|
"""
|
||
|
|
for c in group:
|
||
|
|
ret = c.getFootprint()
|
||
|
|
if ret != "":
|
||
|
|
return ret
|
||
|
|
return group[0].getLibPart().getFootprint()
|
||
|
|
|
||
|
|
def getGroupDatasheet(self, group):
|
||
|
|
"""Return the whatever is known about the Datasheet by consulting each
|
||
|
|
component in the group. If any of them know something about the Datasheet,
|
||
|
|
then return that first non-blank value.
|
||
|
|
"""
|
||
|
|
for c in group:
|
||
|
|
ret = c.getDatasheet()
|
||
|
|
if ret != "":
|
||
|
|
return ret
|
||
|
|
|
||
|
|
if len(group) > 0:
|
||
|
|
return group[0].getLibPart().getDatasheet()
|
||
|
|
else:
|
||
|
|
print("NULL!")
|
||
|
|
return ''
|
||
|
|
|
||
|
|
def formatXML(self):
|
||
|
|
"""Return the whole netlist formatted in XML"""
|
||
|
|
return self.tree.formatXML()
|
||
|
|
|
||
|
|
def formatHTML(self):
|
||
|
|
"""Return the whole netlist formatted in HTML"""
|
||
|
|
return self.tree.formatHTML()
|
||
|
|
|
||
|
|
def load(self, fname):
|
||
|
|
"""Load a kicad generic netlist
|
||
|
|
|
||
|
|
Keywords:
|
||
|
|
fname -- The name of the generic netlist file to open
|
||
|
|
|
||
|
|
"""
|
||
|
|
try:
|
||
|
|
self._reader = sax.make_parser()
|
||
|
|
self._reader.setContentHandler(_gNetReader(self))
|
||
|
|
self._reader.parse(fname)
|
||
|
|
except IOError as e:
|
||
|
|
print( __file__, ":", e, file=sys.stderr )
|
||
|
|
sys.exit(-1)
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
class _gNetReader(sax.handler.ContentHandler):
|
||
|
|
"""SAX kicad generic netlist content handler - passes most of the work back
|
||
|
|
to the 'netlist' class which builds a complete tree in RAM for the design
|
||
|
|
|
||
|
|
"""
|
||
|
|
def __init__(self, aParent):
|
||
|
|
self.parent = aParent
|
||
|
|
|
||
|
|
def startElement(self, name, attrs):
|
||
|
|
"""Start of a new XML element event"""
|
||
|
|
element = self.parent.addElement(name)
|
||
|
|
|
||
|
|
for name in attrs.getNames():
|
||
|
|
element.addAttribute(name, attrs.getValue(name))
|
||
|
|
|
||
|
|
def endElement(self, name):
|
||
|
|
self.parent.endElement()
|
||
|
|
|
||
|
|
def characters(self, content):
|
||
|
|
# Ignore erroneous white space - ignoreableWhitespace does not get rid
|
||
|
|
# of the need for this!
|
||
|
|
if not content.isspace():
|
||
|
|
self.parent.addChars(content)
|
||
|
|
|
||
|
|
def endDocument(self):
|
||
|
|
"""End of the XML document event"""
|
||
|
|
self.parent.endDocument()
|