xschem/src/break.awk

79 lines
2.2 KiB
Awk
Executable File

#!/usr/bin/awk -f
#
# File: break.awk
#
# This file is part of XSCHEM,
# a schematic capture and Spice/Vhdl/Verilog netlisting tool for circuit
# simulation.
# Copyright (C) 1998-2023 Stefan Frederik Schippers
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#break VERY long lines
BEGIN{ quote=0 }
/^\*\*\*\* begin user (architecture|header) code/ { user_code = 1 }
{
pos=0
sub(/[ \t]*$/, "") # chop trailing white space
if(NF==0) { print ""; next }
first = substr($0,1,1)
# dont break .include lines as ngspice chokes on these.
if(user_code == 1) nobreak = 1
else if(tolower($1) ~ /\.inc(lude)?|\.lib|\.title|\.save|\.write/) nobreak = 1
else if($0 ~/^\*\* ..._path:/) nobreak = 1
else nobreak = 0
# 20151203 faster executionif no {}' present
if($0 ~/[{}']/ || quote) {
l = length($0)
for(i=1;i<=l;i++) {
pos++
c = substr($0,i,1)
if(c ~/[{}']/) quote=!quote
if(!nobreak && pos> 130 && !quote && (c ~/[ \t]/)) {
if(first=="*")
c = "\n*+" c
else
c = "\n+" c
pos=0
}
printf "%s",c
}
printf "\n"
} else { #20151203
split($0, a, /[^ \t]+/)
for(i=1;i<=NF;i++) {
pos += length($i)+length(a[i])
if(!nobreak && pos>130) {
if(first=="*") {
printf "%s", "\n*+"
} else {
printf "%s", "\n+"
}
pos=0
} # else if(i>1) {
# printf " "
# }
printf "%s%s", a[i], $i
}
printf "\n"
}
}
/^\*\*\*\* end user (architecture|header) code/ { user_code = 0 }