OpenSTA/etc/TclEncode.tcl

93 lines
2.9 KiB
Tcl
Executable File

#! /bin/sh
# The next line is executed by /bin/sh, but not Tcl \
exec tclsh $0 ${1+"$@"}
# OpenSTA, Static Timing Analyzer
# Copyright (c) 2025, Parallax Software, Inc.
#
# 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 3 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, see <https://www.gnu.org/licenses/>.
#
# The origin of this software must not be misrepresented; you must not
# claim that you wrote the original software.
#
# Altered source versions must be plainly marked as such, and must not be
# misrepresented as being the original software.
#
# This notice may not be removed or altered from any source distribution.
# Usage: TclEncode encoded_filename var_name tcl_init_dir tcl_filename...
# Encode the contents of tcl_filenames into a C character array
# named var_name in the file encoded_filename.
# Each TCL file is encoded as a separate string of three digit decimal numbers
# that is unencoded and evaled on startup of the application.
# The init variable character array is terminated with a NULL pointer.
set encoded_filename [lindex $argv 0]
set init_var [lindex $argv 1]
set init_filenames [lrange $argv 2 end]
# Microcruft Visual C-- ridiculously short max string constant length.
set max_string_length 2000
set out_stream [open $encoded_filename w]
puts $out_stream "// TCL init file encoded by TclEncode.tcl"
puts $out_stream "namespace sta {"
puts $out_stream "const char *$init_var\[\] = {"
puts -nonewline $out_stream "\""
set encoded_length 0
binary scan "\n" c newline_enc
proc encode_line { line } {
global encoded_length max_string_length
global newline_enc out_stream
set length [string length $line]
set i 0
while { $i < $length } {
set ch [string index $line $i]
binary scan $ch c enc
puts -nonewline $out_stream [format "%03d" $enc]
incr i
incr encoded_length 3
if { $encoded_length > $max_string_length } {
puts $out_stream "\","
puts -nonewline $out_stream "\""
set encoded_length 0
}
}
puts -nonewline $out_stream [format "%03d" $newline_enc]
incr encoded_length 3
}
proc encode_file { filename } {
set in_stream [open $filename r]
while {![eof $in_stream]} {
gets $in_stream line
encode_line $line
}
close $in_stream
}
foreach filename $init_filenames {
encode_file $filename
}
puts $out_stream "\","
# NULL string to terminate char* array.
puts $out_stream "0"
puts $out_stream "};"
puts $out_stream "} // namespace"
close $out_stream