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8d68fff1c7
* src/options.h (Options::has_initializer_suffix): New declaration. * src/options.cc (Options::has_initializer_suffix): New function. * src/output.cc (Output::output_keyword_table): If option -t is specified and option -F is not specified, emit '#pragma GCC diagnostic' lines, to silence -Wmissing-field-initializers warnings from gcc or clang. * tests/charsets.exp: Update. * tests/gpc.exp: Likewise. * tests/incomplete.exp: Likewise. * tests/languages.exp: Likewise. * tests/objc.exp: Likewise. * tests/test-4.exp: Likewise.
306 lines
9.5 KiB
C++
306 lines
9.5 KiB
C++
/* This may look like C code, but it is really -*- C++ -*- */
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/* Handles parsing the Options provided to the user.
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Copyright (C) 1989-1998, 2000, 2002-2004, 2011, 2023 Free Software Foundation, Inc.
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Written by Douglas C. Schmidt <schmidt@ics.uci.edu>
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and Bruno Haible <bruno@clisp.org>.
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This file is part of GNU GPERF.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* This module provides a uniform interface to the various options available
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to a user of the gperf hash function generator. */
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#ifndef options_h
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#define options_h 1
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#include <stdio.h>
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#include "positions.h"
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/* Enumeration of the possible boolean options. */
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enum Option_Type
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{
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/* --- Input file interpretation --- */
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/* Handle user-defined type structured keyword input. */
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TYPE = 1 << 0,
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/* Ignore case of ASCII characters. */
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UPPERLOWER = 1 << 1,
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/* --- Language for the output code --- */
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/* Generate K&R C code: no prototypes, no const. */
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KRC = 1 << 2,
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/* Generate C code: no prototypes, but const (user can #define it away). */
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C = 1 << 3,
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/* Generate ISO/ANSI C code: prototypes and const, but no class. */
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ANSIC = 1 << 4,
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/* Generate C++ code: prototypes, const, class, inline, enum. */
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CPLUSPLUS = 1 << 5,
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/* --- Details in the output code --- */
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/* Assume 7-bit, not 8-bit, characters. */
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SEVENBIT = 1 << 6,
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/* Generate a length table for string comparison. */
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LENTABLE = 1 << 7,
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/* Generate strncmp rather than strcmp. */
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COMP = 1 << 8,
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/* Make the generated tables readonly (const). */
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CONST = 1 << 9,
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/* Use enum for constants. */
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ENUM = 1 << 10,
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/* Generate #include statements. */
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INCLUDE = 1 << 11,
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/* Make the keyword table a global variable. */
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GLOBAL = 1 << 12,
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/* Use NULL strings instead of empty strings for empty table entries. */
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NULLSTRINGS = 1 << 13,
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/* Optimize for position-independent code. */
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SHAREDLIB = 1 << 14,
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/* Generate switch output to save space. */
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SWITCH = 1 << 15,
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/* Don't include user-defined type definition in output -- it's already
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defined elsewhere. */
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NOTYPE = 1 << 16,
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/* --- Algorithm employed by gperf --- */
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/* Use the given key positions. */
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POSITIONS = 1 << 17,
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/* Handle duplicate hash values for keywords. */
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DUP = 1 << 18,
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/* Don't include keyword length in hash computations. */
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NOLENGTH = 1 << 19,
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/* Randomly initialize the associated values table. */
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RANDOM = 1 << 20,
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/* --- Informative output --- */
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/* Enable debugging (prints diagnostics to stderr). */
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DEBUG = 1 << 21
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};
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/* Class manager for gperf program Options. */
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class Options
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{
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public:
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/* Constructor. */
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Options ();
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/* Destructor. */
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~Options ();
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/* Parses the options given in the command-line arguments. */
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void parse_options (int argc, char *argv[]);
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/* Prints the given options. */
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void print_options () const;
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/* Accessors. */
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/* Tests a given boolean option. Returns true if set, false otherwise. */
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bool operator[] (Option_Type option) const;
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/* Sets a given boolean option. */
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void set (Option_Type option);
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/* Returns the input file name. */
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const char * get_input_file_name () const;
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/* Returns the output file name. */
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const char * get_output_file_name () const;
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/* Sets the output language, if not already set. */
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void set_language (const char *language);
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/* Returns the jump value. */
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int get_jump () const;
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/* Returns the initial associated character value. */
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int get_initial_asso_value () const;
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/* Returns the number of iterations for finding good asso_values. */
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int get_asso_iterations () const;
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/* Returns the total number of switch statements to generate. */
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int get_total_switches () const;
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/* Sets the total number of switch statements, if not already set. */
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void set_total_switches (int total_switches);
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/* Returns the factor by which to multiply the generated table's size. */
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float get_size_multiple () const;
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/* Returns the generated function name. */
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const char * get_function_name () const;
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/* Sets the generated function name, if not already set. */
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void set_function_name (const char *name);
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/* Returns the keyword key name. */
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const char * get_slot_name () const;
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/* Sets the keyword key name, if not already set. */
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void set_slot_name (const char *name);
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/* Returns the struct initializer suffix. */
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const char * get_initializer_suffix () const;
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/* Returns true if the struct initializer suffix has been set. */
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bool has_initializer_suffix () const;
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/* Sets the struct initializer suffix, if not already set. */
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void set_initializer_suffix (const char *initializers);
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/* Returns the generated class name. */
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const char * get_class_name () const;
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/* Sets the generated class name, if not already set. */
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void set_class_name (const char *name);
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/* Returns the hash function name. */
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const char * get_hash_name () const;
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/* Sets the hash function name, if not already set. */
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void set_hash_name (const char *name);
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/* Returns the hash table array name. */
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const char * get_wordlist_name () const;
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/* Sets the hash table array name, if not already set. */
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void set_wordlist_name (const char *name);
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/* Returns the length table array name. */
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const char * get_lengthtable_name () const;
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/* Sets the length table array name, if not already set. */
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void set_lengthtable_name (const char *name);
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/* Returns the string pool name. */
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const char * get_stringpool_name () const;
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/* Sets the string pool name, if not already set. */
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void set_stringpool_name (const char *name);
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/* Returns the prefix for the constants. */
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const char * get_constants_prefix () const;
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/* Sets the prefix for the constants, if not already set. */
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void set_constants_prefix (const char *prefix);
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/* Returns the string used to delimit keywords from other attributes. */
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const char * get_delimiters () const;
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/* Sets the delimiters string, if not already set. */
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void set_delimiters (const char *delimiters);
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/* Returns key positions. */
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const Positions& get_key_positions () const;
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private:
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/* Prints program usage to given stream. */
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static void short_usage (FILE * stream);
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/* Prints program usage to given stream. */
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static void long_usage (FILE * stream);
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/* Records count of command-line arguments. */
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int _argument_count;
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/* Stores a pointer to command-line argument vector. */
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char ** _argument_vector;
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/* Holds the boolean options. */
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int _option_word;
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/* Name of input file. */
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char * _input_file_name;
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/* Name of output file. */
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char * _output_file_name;
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/* The output language. */
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const char * _language;
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/* Jump length when trying alternative values. */
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int _jump;
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/* Initial value for asso_values table. */
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int _initial_asso_value;
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/* Number of attempts at finding good asso_values. */
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int _asso_iterations;
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/* Number of switch statements to generate. */
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int _total_switches;
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/* Factor by which to multiply the generated table's size. */
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float _size_multiple;
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/* Names used for generated lookup function. */
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const char * _function_name;
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/* Name used for keyword key. */
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const char * _slot_name;
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/* Suffix for empty struct initializers. */
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const char * _initializer_suffix;
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/* Name used for generated C++ class. */
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const char * _class_name;
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/* Name used for generated hash function. */
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const char * _hash_name;
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/* Name used for hash table array. */
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const char * _wordlist_name;
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/* Name used for length table array. */
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const char * _lengthtable_name;
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/* Name used for the string pool. */
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const char * _stringpool_name;
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/* Prefix for the constants. */
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const char * _constants_prefix;
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/* Separates keywords from other attributes. */
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const char * _delimiters;
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/* Contains user-specified key choices. */
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Positions _key_positions;
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};
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/* Global option coordinator for the entire program. */
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extern Options option;
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#ifdef __OPTIMIZE__
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#define INLINE inline
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#include "options.icc"
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#undef INLINE
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#endif
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#endif
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