# Copyright (C) 2003,2004, 2007 Free Software Foundation, Inc.
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# Copyright (C) 2003,2004, 2007 Free Software Foundation, Inc.
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# Contributed by Kelley Cook, June 2004.
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# Contributed by Kelley Cook, June 2004.
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# Original code from Neil Booth, May 2003.
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# Original code from Neil Booth, May 2003.
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#
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#
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# This program is free software; you can redistribute it and/or modify it
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 3, or (at your option) any
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# Free Software Foundation; either version 3, or (at your option) any
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# later version.
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# later version.
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#
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#
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# This program is distributed in the hope that it will be useful,
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# GNU General Public License for more details.
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#
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#
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# You should have received a copy of the GNU General Public License
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING3. If not see
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# along with this program; see the file COPYING3. If not see
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# <http://www.gnu.org/licenses/>.
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# <http://www.gnu.org/licenses/>.
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# Some common subroutines for use by opt[ch]-gen.awk.
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# Some common subroutines for use by opt[ch]-gen.awk.
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# Return nonzero if FLAGS contains a flag matching REGEX.
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# Return nonzero if FLAGS contains a flag matching REGEX.
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function flag_set_p(regex, flags)
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function flag_set_p(regex, flags)
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{
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{
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return (" " flags " ") ~ (" " regex " ")
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return (" " flags " ") ~ (" " regex " ")
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}
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}
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# Return STRING if FLAGS contains a flag matching regexp REGEX,
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# Return STRING if FLAGS contains a flag matching regexp REGEX,
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# otherwise return the empty string.
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# otherwise return the empty string.
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function test_flag(regex, flags, string)
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function test_flag(regex, flags, string)
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{
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{
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if (flag_set_p(regex, flags))
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if (flag_set_p(regex, flags))
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return string
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return string
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return ""
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return ""
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}
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}
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# If FLAGS contains a "NAME(...argument...)" flag, return the value
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# If FLAGS contains a "NAME(...argument...)" flag, return the value
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# of the argument. Return the empty string otherwise.
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# of the argument. Return the empty string otherwise.
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function opt_args(name, flags)
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function opt_args(name, flags)
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{
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{
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flags = " " flags
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flags = " " flags
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if (flags !~ " " name "\\(")
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if (flags !~ " " name "\\(")
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return ""
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return ""
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sub(".* " name "\\(", "", flags)
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sub(".* " name "\\(", "", flags)
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sub("\\).*", "", flags)
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sub("\\).*", "", flags)
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return flags
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return flags
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}
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}
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# Return the Nth comma-separated element of S. Return the empty string
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# Return the Nth comma-separated element of S. Return the empty string
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# if S does not contain N elements.
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# if S does not contain N elements.
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function nth_arg(n, s)
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function nth_arg(n, s)
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{
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{
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while (n-- > 0) {
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while (n-- > 0) {
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if (s !~ ",")
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if (s !~ ",")
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return ""
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return ""
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sub("[^,]*, *", "", s)
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sub("[^,]*, *", "", s)
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}
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}
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sub(",.*", "", s)
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sub(",.*", "", s)
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return s
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return s
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}
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}
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# Return a bitmask of CL_* values for option flags FLAGS.
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# Return a bitmask of CL_* values for option flags FLAGS.
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function switch_flags (flags)
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function switch_flags (flags)
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{
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{
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result = "0"
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result = "0"
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for (j = 0; j < n_langs; j++) {
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for (j = 0; j < n_langs; j++) {
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regex = langs[j]
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regex = langs[j]
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gsub ( "\\+", "\\+", regex )
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gsub ( "\\+", "\\+", regex )
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result = result test_flag(regex, flags, " | " macros[j])
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result = result test_flag(regex, flags, " | " macros[j])
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}
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}
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result = result \
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result = result \
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test_flag("Common", flags, " | CL_COMMON") \
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test_flag("Common", flags, " | CL_COMMON") \
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test_flag("Target", flags, " | CL_TARGET") \
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test_flag("Target", flags, " | CL_TARGET") \
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test_flag("Joined", flags, " | CL_JOINED") \
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test_flag("Joined", flags, " | CL_JOINED") \
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test_flag("JoinedOrMissing", flags, " | CL_JOINED | CL_MISSING_OK") \
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test_flag("JoinedOrMissing", flags, " | CL_JOINED | CL_MISSING_OK") \
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test_flag("Separate", flags, " | CL_SEPARATE") \
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test_flag("Separate", flags, " | CL_SEPARATE") \
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test_flag("RejectNegative", flags, " | CL_REJECT_NEGATIVE") \
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test_flag("RejectNegative", flags, " | CL_REJECT_NEGATIVE") \
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test_flag("UInteger", flags, " | CL_UINTEGER") \
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test_flag("UInteger", flags, " | CL_UINTEGER") \
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test_flag("Undocumented", flags, " | CL_UNDOCUMENTED") \
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test_flag("Undocumented", flags, " | CL_UNDOCUMENTED") \
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test_flag("Report", flags, " | CL_REPORT")
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test_flag("Report", flags, " | CL_REPORT")
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sub( "^0 \\| ", "", result )
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sub( "^0 \\| ", "", result )
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return result
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return result
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}
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}
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# If FLAGS includes a Var flag, return the name of the variable it specifies.
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# If FLAGS includes a Var flag, return the name of the variable it specifies.
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# Return the empty string otherwise.
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# Return the empty string otherwise.
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function var_name(flags)
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function var_name(flags)
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{
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{
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return nth_arg(0, opt_args("Var", flags))
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return nth_arg(0, opt_args("Var", flags))
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}
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}
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# Return true if the option described by FLAGS has a globally-visible state.
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# Return true if the option described by FLAGS has a globally-visible state.
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function global_state_p(flags)
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function global_state_p(flags)
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{
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{
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return (var_name(flags) != "" \
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return (var_name(flags) != "" \
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|| opt_args("Mask", flags) != "" \
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|| opt_args("Mask", flags) != "" \
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|| opt_args("InverseMask", flags) != "")
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|| opt_args("InverseMask", flags) != "")
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}
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}
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# Return true if the option described by FLAGS must have some state
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# Return true if the option described by FLAGS must have some state
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# associated with it.
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# associated with it.
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function needs_state_p(flags)
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function needs_state_p(flags)
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{
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{
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return flag_set_p("Target", flags)
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return flag_set_p("Target", flags)
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}
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}
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# If FLAGS describes an option that needs a static state variable,
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# If FLAGS describes an option that needs a static state variable,
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# return the name of that variable, otherwise return "". NAME is
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# return the name of that variable, otherwise return "". NAME is
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# the name of the option.
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# the name of the option.
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function static_var(name, flags)
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function static_var(name, flags)
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{
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{
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if (global_state_p(flags) || !needs_state_p(flags))
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if (global_state_p(flags) || !needs_state_p(flags))
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return ""
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return ""
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gsub ("[^A-Za-z0-9]", "_", name)
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gsub ("[^A-Za-z0-9]", "_", name)
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return "VAR_" name
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return "VAR_" name
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}
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}
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# Return the type of variable that should be associated with the given flags.
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# Return the type of variable that should be associated with the given flags.
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function var_type(flags)
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function var_type(flags)
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{
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{
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if (!flag_set_p("Joined.*", flags))
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if (!flag_set_p("Joined.*", flags))
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return "int "
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return "int "
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else if (flag_set_p("UInteger", flags))
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else if (flag_set_p("UInteger", flags))
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return "int "
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return "int "
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else
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else
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return "const char *"
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return "const char *"
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}
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}
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# Given that an option has flags FLAGS, return an initializer for the
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# Given that an option has flags FLAGS, return an initializer for the
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# "var_cond" and "var_value" fields of its cl_options[] entry.
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# "var_cond" and "var_value" fields of its cl_options[] entry.
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function var_set(flags)
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function var_set(flags)
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{
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{
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s = nth_arg(1, opt_args("Var", flags))
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s = nth_arg(1, opt_args("Var", flags))
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if (s != "")
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if (s != "")
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return "CLVC_EQUAL, " s
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return "CLVC_EQUAL, " s
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s = opt_args("Mask", flags);
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s = opt_args("Mask", flags);
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if (s != "") {
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if (s != "") {
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vn = var_name(flags);
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vn = var_name(flags);
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if (vn)
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if (vn)
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return "CLVC_BIT_SET, OPTION_MASK_" s
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return "CLVC_BIT_SET, OPTION_MASK_" s
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else
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else
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return "CLVC_BIT_SET, MASK_" s
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return "CLVC_BIT_SET, MASK_" s
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}
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}
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s = nth_arg(0, opt_args("InverseMask", flags));
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s = nth_arg(0, opt_args("InverseMask", flags));
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if (s != "") {
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if (s != "") {
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vn = var_name(flags);
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vn = var_name(flags);
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if (vn)
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if (vn)
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return "CLVC_BIT_CLEAR, OPTION_MASK_" s
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return "CLVC_BIT_CLEAR, OPTION_MASK_" s
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else
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else
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return "CLVC_BIT_CLEAR, MASK_" s
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return "CLVC_BIT_CLEAR, MASK_" s
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}
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}
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if (var_type(flags) == "const char *")
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if (var_type(flags) == "const char *")
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return "CLVC_STRING, 0"
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return "CLVC_STRING, 0"
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return "CLVC_BOOLEAN, 0"
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return "CLVC_BOOLEAN, 0"
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}
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}
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# Given that an option called NAME has flags FLAGS, return an initializer
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# Given that an option called NAME has flags FLAGS, return an initializer
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# for the "flag_var" field of its cl_options[] entry.
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# for the "flag_var" field of its cl_options[] entry.
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function var_ref(name, flags)
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function var_ref(name, flags)
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{
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{
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name = var_name(flags) static_var(name, flags)
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name = var_name(flags) static_var(name, flags)
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if (name != "")
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if (name != "")
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return "&" name
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return "&" name
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if (opt_args("Mask", flags) != "")
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if (opt_args("Mask", flags) != "")
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return "&target_flags"
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return "&target_flags"
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if (opt_args("InverseMask", flags) != "")
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if (opt_args("InverseMask", flags) != "")
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return "&target_flags"
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return "&target_flags"
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return "0"
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return "0"
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}
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}
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