#!/bin/sh # # Copyright (C) 2003 Free Software Foundation, Inc. # Contributed by Neil Booth, May 2003. # # 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, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # # Usage: opts.sh outfile.c outfile.h file1.opt [file2.opt, ...] # Always operate in the C locale. LANG=C LANGUAGE=C LC_ALL=C export LANG LANGUAGE LC_ALL # Set AWK if environment has not already set it. AWK=${AWK-awk} SORT=sort # Could be /bin/sort or /usr/bin/sort C_FILE=$1; shift H_FILE=$1; shift # Must unset, so that RS="" works in gawk 3.0-3.1.1 (possibly earlier too) # Appears to be a gawk bug, RS="" is not an extension unset POSIXLY_CORRECT ${AWK} ' BEGIN{ RS=""; FS="\n" } # Ignore comments and blank lines /^[ \t]*(;|$)/ { next } /^[^ \t]/ { gsub ("\n", "\034", $0); print } ' "$@" | ${SORT} | ${AWK} ' function switch_flags (flags, result) { flags = " " flags " " result = "0" for (j = 0; j < n_langs; j++) { regex = " " langs[j] " " gsub ( "\\+", "\\+", regex ) if (flags ~ regex) result = result " | " macros[j] } if (flags ~ " Common ") result = result " | CL_COMMON" if (flags ~ " Joined ") result = result " | CL_JOINED" if (flags ~ " JoinedOrMissing ") \ result = result " | CL_JOINED | CL_MISSING_OK" if (flags ~ " Separate ") result = result " | CL_SEPARATE" if (flags ~ " RejectNegative ") result = result " | CL_REJECT_NEGATIVE" if (flags ~ " UInteger ") result = result " | CL_UINTEGER" sub( "^0 \\| ", "", result ) return result } BEGIN { FS = "\034" n_opts = 0 n_langs = 0 } # Collect the text and flags of each option into an array { if ($1 == "Language") { langs[n_langs] = $2 n_langs++; } else { opts[n_opts] = $1 flags[n_opts] = $2 n_opts++; } } # Dump out an enumeration into a .h file, and an array of options into a # C file. Combine the flags of duplicate options. END { c_file = "'${C_FILE}'" h_file = "'${H_FILE}'" comma = "," print "/* This file is auto-generated by opts.sh. */\n" > h_file for (i = 0; i < n_langs; i++) { macros[i] = "CL_" langs[i] gsub( "[^A-Za-z0-9_]", "X", macros[i] ) s = substr(" ", length (macros[i])) print "#define " macros[i] s " (1 << " i ")" >> h_file } print "\nenum opt_code\n{" >> h_file print "/* This file is auto-generated by opts.sh. */\n" > c_file print "#include \"" h_file "\"" >> c_file print "#include \"opts.h\"\n" >> c_file print "const unsigned int cl_options_count = N_OPTS;\n" >> c_file print "const struct cl_option cl_options[] =\n{" >> c_file for (i = 0; i < n_opts; i++) { while( i + 1 != n_opts && opts[i] == opts[i + 1] ) { flags[i + 1] = flags[i] " " flags[i + 1]; i++; } enum = "OPT_" opts[i] gsub( "[^A-Za-z0-9]", "_", enum) s = substr(" ", length (opts[i])) if (i + 1 == n_opts) comma = "" printf(" %s,%s/* -%s */\n", enum, s, opts[i]) >> h_file printf(" { \"%s\", %u, %s }%s\n", opts[i], \ length(opts[i]), switch_flags(flags[i]), comma) >> c_file } print " N_OPTS\n};" >> h_file print "};" >> c_file } '