Sorry for the occasional non-political post ... In the past I have seen special character issues with netlists across foreign country boundaries. For example, in some countries they use a comma as the decimal "point" and NXP also has those dreaded "...,215" in some part numbers. That can blow a netlist out of the water. How about a real decimal point (a dot) inside a footprint? Main reason I ask is for mounting hole designators. A client wants all this in metric dimensions and that will require fractions of a millimeter. For clarity I'd like to list that as "4.5MM_DRILL" footprint or similar. If dots are not allowed I could only use 4500UM_DRILL" or such and that's less understandable. -- Regards, Joerg http://www.analogconsultants.com/
Dot allowed as characters allowed in netlist?
Started by ●March 11, 2018
Reply by ●March 11, 20182018-03-11
On Sun, 11 Mar 2018 09:37:59 -0700, Joerg <news@analogconsultants.com> wrote:>Sorry for the occasional non-political post ... > >In the past I have seen special character issues with netlists across >foreign country boundaries. For example, in some countries they use a >comma as the decimal "point" and NXP also has those dreaded "...,215" in >some part numbers. That can blow a netlist out of the water. > >How about a real decimal point (a dot) inside a footprint? > >Main reason I ask is for mounting hole designators. A client wants all >this in metric dimensions and that will require fractions of a >millimeter. For clarity I'd like to list that as "4.5MM_DRILL" footprint >or similar. If dots are not allowed I could only use 4500UM_DRILL" or >such and that's less understandable.We delete extra characters in our parts database. TO247, not TO-247. But decimal points are necesssary. We haven't seen any problems with that, but we rarely send BOMs outside the company. You could adapt the dreaded 4K7 convention: 4MM5drill. -- John Larkin Highland Technology, Inc lunatic fringe electronics
Reply by ●March 11, 20182018-03-11
John Larkin wrote...> > You could adapt the dreaded 4K7 convention: 4MM5drill.It helps to allow lower case, 4mm5 -- Thanks, - Win
Reply by ●March 11, 20182018-03-11
On Sun, 11 Mar 2018 09:37:59 -0700, Joerg <news@analogconsultants.com> wrote:>Sorry for the occasional non-political post ... > >In the past I have seen special character issues with netlists across >foreign country boundaries. For example, in some countries they use a >comma as the decimal "point" and NXP also has those dreaded "...,215" in >some part numbers. That can blow a netlist out of the water. > >How about a real decimal point (a dot) inside a footprint? > >Main reason I ask is for mounting hole designators. A client wants all >this in metric dimensions and that will require fractions of a >millimeter. For clarity I'd like to list that as "4.5MM_DRILL" footprint >or similar. If dots are not allowed I could only use 4500UM_DRILL" or >such and that's less understandable.You should elaborate... the netlist to which you refer is a PCB netlist, NOT a simulation netlist. However, in simulation netlists one should avoid non-alphanumeric characters, except that "underscore" is usually allowed. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | It's what you learn, after you know it all, that counts.
Reply by ●March 11, 20182018-03-11
On Sun, 11 Mar 2018 11:32:17 -0700, Jim Thompson <To-Email-Use-The-Envelope-Icon@On-My-Web-Site.com> wrote: [snip]> >However, in simulation netlists one should avoid non-alphanumeric >characters, except that "underscore" is usually allowed. > > ...Jim ThompsonAbove is for model names. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | STV, Queen Creek, AZ 85142 Skype: skypeanalog | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | It's what you learn, after you know it all, that counts.
Reply by ●March 11, 20182018-03-11
>"John Larkin" wrote in message >news:pjnaadpnmpenvpsj4k5shiqrubus9njn8d@4ax.com...>You could adapt the dreaded 4K7 convention: 4MM5drill.Its not dreaded. It's a great way to notate numbers. -- Kevin Aylward http://www.anasoft.co.uk - SuperSpice http://www.kevinaylward.co.uk/ee/index.html
Reply by ●March 11, 20182018-03-11
On Sun, 11 Mar 2018 19:30:55 -0000, "Kevin Aylward" <kevinRemovAT@kevinaylward.co.uk> wrote:>>"John Larkin" wrote in message >>news:pjnaadpnmpenvpsj4k5shiqrubus9njn8d@4ax.com... > > >>You could adapt the dreaded 4K7 convention: 4MM5drill. > > >Its not dreaded. It's a great way to notate numbers. > > >-- Kevin Aylward >http://www.anasoft.co.uk - SuperSpice >http://www.kevinaylward.co.uk/ee/index.htmlThe original justification was that decimal points were somehow fragile and got lost on drawings, so the wrong parts values got installed. It was nonsense of course. I just frosted a Guinness Cake, which involved using 1cup25 of powdered sugar. -- John Larkin Highland Technology, Inc lunatic fringe electronics
Reply by ●March 11, 20182018-03-11
Who actually has problems parsing strings anymore? Don't write your PCB tools in God damned PHP. On a related rant: Stop naming fucking files in ALL_CAPS_WITH_UNDERSCORES. We have long file names, case and spaces now. Like, for two or three decades. We can write appealing, pronouncable file names now. Like "Power Supply Rev 1". Tim -- Seven Transistor Labs, LLC Electrical Engineering Consultation and Contract Design Website: https://www.seventransistorlabs.com/ "Joerg" <news@analogconsultants.com> wrote in message news:fgl4b7F5rrgU1@mid.individual.net...> Sorry for the occasional non-political post ... > > In the past I have seen special character issues with netlists across > foreign country boundaries. For example, in some countries they use a > comma as the decimal "point" and NXP also has those dreaded "...,215" in > some part numbers. That can blow a netlist out of the water. > > How about a real decimal point (a dot) inside a footprint? > > Main reason I ask is for mounting hole designators. A client wants all > this in metric dimensions and that will require fractions of a millimeter. > For clarity I'd like to list that as "4.5MM_DRILL" footprint or similar. > If dots are not allowed I could only use 4500UM_DRILL" or such and that's > less understandable. > > -- > Regards, Joerg > > http://www.analogconsultants.com/
Reply by ●March 11, 20182018-03-11
On Sun, 11 Mar 2018 16:31:33 -0500, "Tim Williams" <tiwill@seventransistorlabs.com> wrote:>Who actually has problems parsing strings anymore? > >Don't write your PCB tools in God damned PHP. > >On a related rant: > >Stop naming fucking files in ALL_CAPS_WITH_UNDERSCORES. We have long file >names, case and spaces now. Like, for two or three decades.Some things don't work right if file names have embedded spaces. And embedded spaces get messy if you want to paste a file name into a document. New Text Document.txt New Text Document.txt New Text Document .txt sure look close in a proportional font.> >We can write appealing, pronouncable file names now. Like "Power Supply Rev >1".Sure, as long as you only ever design one power supply. -- John Larkin Highland Technology, Inc lunatic fringe electronics
Reply by ●March 11, 20182018-03-11
On Sun, 11 Mar 2018 09:37:59 -0700, Joerg <news@analogconsultants.com> wrote:>Sorry for the occasional non-political post ... > >In the past I have seen special character issues with netlists across >foreign country boundaries. For example, in some countries they use a >comma as the decimal "point" and NXP also has those dreaded "...,215" in >some part numbers. That can blow a netlist out of the water. > >How about a real decimal point (a dot) inside a footprint? > >Main reason I ask is for mounting hole designators. A client wants all >this in metric dimensions and that will require fractions of a >millimeter. For clarity I'd like to list that as "4.5MM_DRILL" footprint >or similar. If dots are not allowed I could only use 4500UM_DRILL" or >such and that's less understandable.How about 4m5_Drill or perhaps 4mm5_Drill?
