xschem/xschem_library/generators/res.tcl

#!/bin/sh
# the next line restarts using wish \
exec tclsh "$0" "$@"
proc from_eng {i} {
  set n 1
  set str {k }
  if {[scan $i "%g%s" n str] < 2} { set str {}}
  set str [string tolower $str]
  if { [regexp {^meg} $str] } { set str {meg} } else {
    set suffix [string index $str 0]
  } 
  set mult [switch $suffix {
    a         { expr {1e-18}}
    f         { expr {1e-15}}
    p         { expr {1e-12}}
    n         { expr { 1e-9}}
    u         { expr {1e-6}} 
    m         { expr {1e-3}}
    k         { expr {1e3}}
    meg       { expr {1e6}}
    g         { expr {1e9}} 
    t         { expr {1e12}}
    default   { expr {1.0}}
  }]      
  return [expr {$n * $mult}]
}       

set arg1 [lindex $argv 0]
if {$arg1 eq {}} { puts stderr "empty arg"; set arg1 1K}
if {[from_eng $arg1] > 0.1} {
puts stderr "res value=|$arg1|"
puts "v {xschem version=3.4.0 file_version=1.2
}
G {}
K {type=resistor
format=\"@name @pinlist @value m=@m\"
template=\"name=R1 value=1k m=1\"
}
V {}
S {}
E {}
L 4 0 20 0 30 {}
L 4 0 20 7.5 17.5 {}
L 4 -7.5 12.5 7.5 17.5 {}
L 4 -7.5 12.5 7.5 7.5 {}
L 4 -7.5 2.5 7.5 7.5 {}
L 4 -7.5 2.5 7.5 -2.5 {}
L 4 -7.5 -7.5 7.5 -2.5 {}
L 4 -7.5 -7.5 7.5 -12.5 {}
L 4 -7.5 -17.5 7.5 -12.5 {}
L 4 -7.5 -17.5 0 -20 {}
L 4 0 -30 0 -20 {}
L 4 2.5 -22.5 7.5 -22.5 {}
L 4 5 -25 5 -20 {}
B 5 -2.5 -32.5 2.5 -27.5 {name=P dir=inout propag=1 pinnumber=1 goto=1}
B 5 -2.5 27.5 2.5 32.5 {name=M dir=inout propag=0 pinnumber=2 goto=0}
T {@name} -15 -13.75 0 1 0.2 0.2 {}
T {@value} 15 -3.75 0 0 0.2 0.2 {}
T {@#0:net_name} 10 -28.75 0 0 0.15 0.15 {layer=15}
T {@#1:net_name} 10 20 0 0 0.15 0.15 {layer=15}
T {m=@m} -15 1.25 0 1 0.2 0.2 {}
T {@spice_get_current} 12.5 -16.25 0 0 0.2 0.2 {layer=15}"
} else {

puts "v {xschem version=3.4.0 file_version=1.2
}
G {}
K {type=show_label
format=\"* shorted: @name  @#0:net_name <--> @#1:net_name @value\"
template=\"name=R1 value=0.1\"
}
V {}
S {}
E {}
L 1 0 -30 0 30 {}
B 5 -2.5 -32.5 2.5 -27.5 {name=P dir=inout propag=1 pinnumber=1 goto=1}
B 5 -2.5 27.5 2.5 32.5 {name=P dir=inout propag=0 pinnumber=2 goto=0}
T {@value} 15 -3.75 0 0 0.2 0.2 {}
T {@#0:net_name} 10 -28.75 0 0 0.15 0.15 {layer=15}
T {@#1:net_name} 10 20 0 0 0.15 0.15 {layer=15}
T {@name} -15 -13.75 0 1 0.2 0.2 {}"
}