1 /* Parse command line arguments for bison. 2 3 Copyright (C) 1984, 1986, 1989, 1992, 2000-2012 Free Software 4 Foundation, Inc. 5 6 This file is part of Bison, the GNU Compiler Compiler. 7 8 This program is free software: you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation, either version 3 of the License, or 11 (at your option) any later version. 12 13 This program is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 20 21 #ifndef GETARGS_H_ 22 # define GETARGS_H_ 23 24 #include "location.h" 25 26 enum { command_line_prio, grammar_prio, default_prio }; 27 28 /* flags set by % directives */ 29 30 /* for -S */ 31 extern char const *skeleton; 32 extern int skeleton_prio; 33 34 /* for -I */ 35 extern char const *include; 36 37 extern bool debug; /* for -t */ 38 extern bool defines_flag; /* for -d */ 39 extern bool graph_flag; /* for -g */ 40 extern bool xml_flag; /* for -x */ 41 extern bool locations_flag; 42 extern bool no_lines_flag; /* for -l */ 43 extern bool token_table_flag; /* for -k */ 44 extern bool yacc_flag; /* for -y */ 45 46 extern bool error_verbose; 47 48 49 /* GLR_PARSER is true if the input file says to use the GLR 50 (Generalized LR) parser, and to output some additional information 51 used by the GLR algorithm. */ 52 53 extern bool glr_parser; 54 55 /* NONDETERMINISTIC_PARSER is true iff conflicts are accepted. This 56 is used by the GLR parser, and might be used in BackTracking 57 parsers too. */ 58 59 extern bool nondeterministic_parser; 60 61 62 /* --language. */ 63 struct bison_language 64 { 65 char language[sizeof "Java"]; 66 char skeleton[sizeof "java-skel.m4"]; 67 char src_extension[sizeof ".java"]; 68 char header_extension[sizeof ".java"]; 69 bool add_tab; 70 }; 71 72 extern int language_prio; 73 extern struct bison_language const *language; 74 75 /*-----------. 76 | --report. | 77 `-----------*/ 78 79 enum report 80 { 81 report_none = 0, 82 report_states = 1 << 0, 83 report_itemsets = 1 << 1, 84 report_lookahead_tokens = 1 << 2, 85 report_solved_conflicts = 1 << 3, 86 report_all = ~0 87 }; 88 /** What appears in the *.output file. */ 89 extern int report_flag; 90 91 /*----------. 92 | --trace. | 93 `----------*/ 94 enum trace 95 { 96 trace_none = 0, /**< No traces. */ 97 trace_scan = 1 << 0, /**< Grammar scanner traces. */ 98 trace_parse = 1 << 1, /**< Grammar parser traces. */ 99 trace_resource = 1 << 2, /**< Memory allocation. */ 100 trace_sets = 1 << 3, /**< Grammar sets: firsts, nullable etc. */ 101 trace_bitsets = 1 << 4, /**< Use of bitsets. */ 102 trace_tools = 1 << 5, /**< m4 invocation. */ 103 trace_automaton = 1 << 6, /**< Construction of the automaton. */ 104 trace_grammar = 1 << 7, /**< Reading, reducing the grammar. */ 105 trace_time = 1 << 8, /**< Time consumption. */ 106 trace_skeleton = 1 << 9, /**< Skeleton postprocessing. */ 107 trace_m4 = 1 << 10, /**< M4 traces. */ 108 trace_muscles = 1 << 11, /**< M4 definitions of the muscles. */ 109 trace_ielr = 1 << 12, /**< IELR conversion. */ 110 trace_all = ~0 /**< All of the above. */ 111 }; 112 /** What debug items bison displays during its run. */ 113 extern int trace_flag; 114 115 /*-------------. 116 | --warnings. | 117 `-------------*/ 118 119 enum warnings 120 { 121 warnings_none = 0, /**< Issue no warnings. */ 122 warnings_error = 1 << 0, /**< Warnings are treated as errors. */ 123 warnings_midrule_values = 1 << 1, /**< Unset or unused midrule values. */ 124 warnings_yacc = 1 << 2, /**< POSIXME. */ 125 warnings_conflicts_sr = 1 << 3, /**< S/R conflicts. */ 126 warnings_conflicts_rr = 1 << 4, /**< R/R conflicts. */ 127 warnings_other = 1 << 5, /**< All other warnings. */ 128 warnings_all = ~warnings_error /**< All above warnings. */ 129 }; 130 /** What warnings are issued. */ 131 extern int warnings_flag; 132 133 /*-------------. 134 | --features. | 135 `-------------*/ 136 137 enum feature 138 { 139 feature_none = 0, /**< No additional feature. */ 140 feature_caret = 1 << 0, /**< Enhance the output of errors with carets. */ 141 feature_all = ~0 /**< All above features. */ 142 }; 143 /** What additional features to use. */ 144 extern int feature_flag; 145 146 /** Process the command line arguments. 147 * 148 * \param argc size of \a argv 149 * \param argv list of arguments. 150 */ 151 void getargs (int argc, char *argv[]); 152 153 /* Used by parse-gram.y. */ 154 void language_argmatch (char const *arg, int prio, location loc); 155 void skeleton_arg (const char *arg, int prio, location loc); 156 157 /** In the string \c s, replace all characters \c from by \c to. */ 158 void tr (char *s, char from, char to); 159 160 #endif /* !GETARGS_H_ */ 161