[6974a34] | 1 | /* readval.c |
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[0395657] | 2 | * Routines to read a prefix or number from the current input file |
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[5b9b9d4] | 3 | * Copyright (C) 1991-2024 Olly Betts |
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[846746e] | 4 | * |
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[89231c4] | 5 | * This program is free software; you can redistribute it and/or modify |
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| 6 | * it under the terms of the GNU General Public License as published by |
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| 7 | * the Free Software Foundation; either version 2 of the License, or |
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| 8 | * (at your option) any later version. |
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[846746e] | 9 | * |
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| 10 | * This program is distributed in the hope that it will be useful, |
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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[89231c4] | 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 13 | * GNU General Public License for more details. |
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[846746e] | 14 | * |
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[89231c4] | 15 | * You should have received a copy of the GNU General Public License |
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| 16 | * along with this program; if not, write to the Free Software |
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[d333899] | 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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[d1b1380] | 18 | */ |
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| 19 | |
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[a420b49] | 20 | #ifdef HAVE_CONFIG_H |
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| 21 | # include <config.h> |
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| 22 | #endif |
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[d1b1380] | 23 | |
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[c00c74a9] | 24 | #include <limits.h> |
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[be97baf] | 25 | #include <stddef.h> /* for offsetof */ |
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[c00c74a9] | 26 | |
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[a420b49] | 27 | #include "cavern.h" |
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[5a0ab6a] | 28 | #include "commands.h" /* For match_tok(), etc */ |
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[1ee204e] | 29 | #include "date.h" |
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[dd5b1a8] | 30 | #include "debug.h" |
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[a1706d1] | 31 | #include "filename.h" |
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| 32 | #include "message.h" |
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[d1b1380] | 33 | #include "readval.h" |
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| 34 | #include "datain.h" |
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[fb2e93c] | 35 | #include "netbits.h" |
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[8cf2e04] | 36 | #include "osalloc.h" |
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[76bb277a] | 37 | #include "str.h" |
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[d1b1380] | 38 | |
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[7d5f3c0] | 39 | #ifdef HAVE_SETJMP_H |
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[647407d] | 40 | # define LONGJMP(JB) longjmp((JB), 1) |
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| 41 | #else |
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| 42 | # define LONGJMP(JB) exit(1) |
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| 43 | #endif |
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| 44 | |
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[c86cc71] | 45 | int root_depr_count = 0; |
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| 46 | |
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[710ecc1] | 47 | static prefix * |
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[a2c33ae] | 48 | new_anon_station(void) |
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[710ecc1] | 49 | { |
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[a2c33ae] | 50 | prefix *name = osnew(prefix); |
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| 51 | name->pos = NULL; |
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| 52 | name->ident = NULL; |
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| 53 | name->shape = 0; |
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| 54 | name->stn = NULL; |
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| 55 | name->up = pcs->Prefix; |
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| 56 | name->down = NULL; |
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| 57 | name->filename = file.filename; |
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| 58 | name->line = file.line; |
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[5fc783b] | 59 | name->min_export = name->max_export = 0; |
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[a2c33ae] | 60 | name->sflags = BIT(SFLAGS_ANON); |
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| 61 | /* Keep linked list of anon stations for node stats. */ |
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| 62 | name->right = anon_list; |
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| 63 | anon_list = name; |
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| 64 | return name; |
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[710ecc1] | 65 | } |
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| 66 | |
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[c458cf7] | 67 | /* if prefix is omitted: if PFX_OPT set return NULL, otherwise use longjmp */ |
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| 68 | extern prefix * |
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| 69 | read_prefix(unsigned pfx_flags) |
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[a420b49] | 70 | { |
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[c458cf7] | 71 | bool f_optional = !!(pfx_flags & PFX_OPT); |
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| 72 | bool fSurvey = !!(pfx_flags & PFX_SURVEY); |
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| 73 | bool fSuspectTypo = !!(pfx_flags & PFX_SUSPECT_TYPO); |
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[4a6a094] | 74 | prefix *back_ptr, *ptr; |
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[a420b49] | 75 | char *name; |
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| 76 | size_t name_len = 32; |
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[eb18f4d] | 77 | size_t i; |
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[647407d] | 78 | bool fNew; |
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[63d4f07] | 79 | bool fImplicitPrefix = true; |
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[932f7e9] | 80 | int depth = -1; |
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[5b4085b] | 81 | filepos fp_firstsep; |
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[a420b49] | 82 | |
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| 83 | skipblanks(); |
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[7f1ab95] | 84 | #ifndef NO_DEPRECATED |
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[a420b49] | 85 | if (isRoot(ch)) { |
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[c458cf7] | 86 | if (!(pfx_flags & PFX_ALLOW_ROOT)) { |
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[cab0f26] | 87 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*ROOT is deprecated*/25); |
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[421b7d2] | 88 | LONGJMP(file.jbSkipLine); |
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[84c60fc] | 89 | } |
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[c86cc71] | 90 | if (root_depr_count < 5) { |
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[cab0f26] | 91 | compile_diagnostic(DIAG_WARN|DIAG_COL, /*ROOT is deprecated*/25); |
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[c86cc71] | 92 | if (++root_depr_count == 5) |
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[cab0f26] | 93 | compile_diagnostic(DIAG_WARN, /*Further uses of this deprecated feature will not be reported*/95); |
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[c86cc71] | 94 | } |
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[d1b1380] | 95 | nextch(); |
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[a420b49] | 96 | ptr = root; |
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| 97 | if (!isNames(ch)) { |
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| 98 | if (!isSep(ch)) return ptr; |
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[27b8b59] | 99 | /* Allow optional SEPARATOR after ROOT */ |
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[5b4085b] | 100 | get_pos(&fp_firstsep); |
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[a420b49] | 101 | nextch(); |
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| 102 | } |
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[63d4f07] | 103 | fImplicitPrefix = false; |
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[710ecc1] | 104 | #else |
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| 105 | if (0) { |
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| 106 | #endif |
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[a420b49] | 107 | } else { |
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[dcbcae0] | 108 | if ((pfx_flags & PFX_ANON) && |
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| 109 | (isSep(ch) || (pcs->dash_for_anon_wall_station && ch == '-'))) { |
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| 110 | int first_ch = ch; |
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[710ecc1] | 111 | filepos here; |
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| 112 | get_pos(&here); |
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| 113 | nextch(); |
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| 114 | if (isBlank(ch) || isEol(ch)) { |
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[dcbcae0] | 115 | if (!isSep(first_ch)) |
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| 116 | goto anon_wall_station; |
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| 117 | /* A single separator alone ('.' by default) is an anonymous |
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| 118 | * station which is on a point inside the passage and implies |
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| 119 | * the leg to it is a splay. |
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| 120 | */ |
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| 121 | if (TSTBIT(pcs->flags, FLAGS_ANON_ONE_END)) { |
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[9f55538] | 122 | set_pos(&here); |
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[d0be687d] | 123 | compile_diagnostic(DIAG_ERR|DIAG_WORD, /*Can't have a leg between two anonymous stations*/3); |
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[dcbcae0] | 124 | LONGJMP(file.jbSkipLine); |
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[710ecc1] | 125 | } |
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[dcbcae0] | 126 | pcs->flags |= BIT(FLAGS_ANON_ONE_END) | BIT(FLAGS_IMPLICIT_SPLAY); |
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[a2c33ae] | 127 | return new_anon_station(); |
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[710ecc1] | 128 | } |
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[dcbcae0] | 129 | if (isSep(first_ch) && ch == first_ch) { |
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| 130 | nextch(); |
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| 131 | if (isBlank(ch) || isEol(ch)) { |
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| 132 | /* A double separator ('..' by default) is an anonymous station |
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| 133 | * which is on the wall and implies the leg to it is a splay. |
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| 134 | */ |
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| 135 | prefix * pfx; |
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| 136 | anon_wall_station: |
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| 137 | if (TSTBIT(pcs->flags, FLAGS_ANON_ONE_END)) { |
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[9f55538] | 138 | set_pos(&here); |
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[d0be687d] | 139 | compile_diagnostic(DIAG_ERR|DIAG_WORD, /*Can't have a leg between two anonymous stations*/3); |
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[dcbcae0] | 140 | LONGJMP(file.jbSkipLine); |
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| 141 | } |
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[da65891] | 142 | pcs->flags |= BIT(FLAGS_ANON_ONE_END) | BIT(FLAGS_IMPLICIT_SPLAY); |
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[dcbcae0] | 143 | pfx = new_anon_station(); |
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| 144 | pfx->sflags |= BIT(SFLAGS_WALL); |
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| 145 | return pfx; |
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| 146 | } |
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| 147 | if (ch == first_ch) { |
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| 148 | nextch(); |
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| 149 | if (isBlank(ch) || isEol(ch)) { |
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| 150 | /* A triple separator ('...' by default) is an anonymous |
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| 151 | * station, but otherwise not handled specially (e.g. for |
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| 152 | * a single leg down an unexplored side passage to a station |
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| 153 | * which isn't refindable). |
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| 154 | */ |
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| 155 | if (TSTBIT(pcs->flags, FLAGS_ANON_ONE_END)) { |
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[9f55538] | 156 | set_pos(&here); |
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[d0be687d] | 157 | compile_diagnostic(DIAG_ERR|DIAG_WORD, /*Can't have a leg between two anonymous stations*/3); |
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[dcbcae0] | 158 | LONGJMP(file.jbSkipLine); |
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| 159 | } |
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| 160 | pcs->flags |= BIT(FLAGS_ANON_ONE_END); |
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| 161 | return new_anon_station(); |
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| 162 | } |
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| 163 | } |
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| 164 | } |
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[710ecc1] | 165 | set_pos(&here); |
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| 166 | } |
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[a420b49] | 167 | ptr = pcs->Prefix; |
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| 168 | } |
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| 169 | |
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| 170 | i = 0; |
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[be97baf] | 171 | name = NULL; |
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[a420b49] | 172 | do { |
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[63d4f07] | 173 | fNew = false; |
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[be97baf] | 174 | if (name == NULL) { |
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| 175 | /* Need a new name buffer */ |
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| 176 | name = osmalloc(name_len); |
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| 177 | } |
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[a420b49] | 178 | /* i==0 iff this is the first pass */ |
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| 179 | if (i) { |
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| 180 | i = 0; |
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| 181 | nextch(); |
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| 182 | } |
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| 183 | while (isNames(ch)) { |
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| 184 | if (i < pcs->Truncate) { |
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| 185 | /* truncate name */ |
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[1157304] | 186 | name[i++] = (pcs->Case == LOWER ? tolower(ch) : |
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| 187 | (pcs->Case == OFF ? ch : toupper(ch))); |
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[a420b49] | 188 | if (i >= name_len) { |
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| 189 | name_len = name_len + name_len; |
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| 190 | name = osrealloc(name, name_len); |
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| 191 | } |
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[8cf2e04] | 192 | } |
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[a420b49] | 193 | nextch(); |
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[8cf2e04] | 194 | } |
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[5b4085b] | 195 | if (isSep(ch)) { |
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[63d4f07] | 196 | fImplicitPrefix = false; |
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[5b4085b] | 197 | get_pos(&fp_firstsep); |
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| 198 | } |
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[a420b49] | 199 | if (i == 0) { |
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| 200 | osfree(name); |
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[21c226e] | 201 | if (!f_optional) { |
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[ee1d81f] | 202 | if (isEol(ch)) { |
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[84c60fc] | 203 | if (fSurvey) { |
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[cab0f26] | 204 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Expecting survey name*/89); |
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[84c60fc] | 205 | } else { |
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[cab0f26] | 206 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Expecting station name*/28); |
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[84c60fc] | 207 | } |
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[ee1d81f] | 208 | } else { |
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[736f7df] | 209 | /* TRANSLATORS: Here "station" is a survey station, not a train station. */ |
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[cab0f26] | 210 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Character “%c” not allowed in station name (use *SET NAMES to set allowed characters)*/7, ch); |
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[ee1d81f] | 211 | } |
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[647407d] | 212 | LONGJMP(file.jbSkipLine); |
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| 213 | } |
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[a420b49] | 214 | return (prefix *)NULL; |
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[d1b1380] | 215 | } |
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[a420b49] | 216 | |
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[76bb277a] | 217 | name[i++] = '\0'; |
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[cb3d1e2] | 218 | |
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[a420b49] | 219 | back_ptr = ptr; |
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| 220 | ptr = ptr->down; |
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| 221 | if (ptr == NULL) { |
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| 222 | /* Special case first time around at each level */ |
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[be97baf] | 223 | name = osrealloc(name, i); |
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[a420b49] | 224 | ptr = osnew(prefix); |
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| 225 | ptr->ident = name; |
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[be97baf] | 226 | name = NULL; |
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[a420b49] | 227 | ptr->right = ptr->down = NULL; |
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| 228 | ptr->pos = NULL; |
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[6adb88c] | 229 | ptr->shape = 0; |
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[a420b49] | 230 | ptr->stn = NULL; |
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| 231 | ptr->up = back_ptr; |
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[d333899] | 232 | ptr->filename = file.filename; |
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| 233 | ptr->line = file.line; |
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[932f7e9] | 234 | ptr->min_export = ptr->max_export = 0; |
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[95c3272] | 235 | ptr->sflags = BIT(SFLAGS_SURVEY); |
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| 236 | if (fSuspectTypo && !fImplicitPrefix) |
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| 237 | ptr->sflags |= BIT(SFLAGS_SUSPECTTYPO); |
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[a420b49] | 238 | back_ptr->down = ptr; |
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[63d4f07] | 239 | fNew = true; |
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[a420b49] | 240 | } else { |
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[be97baf] | 241 | /* Use caching to speed up adding an increasing sequence to a |
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| 242 | * large survey */ |
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| 243 | static prefix *cached_survey = NULL, *cached_station = NULL; |
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[a420b49] | 244 | prefix *ptrPrev = NULL; |
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[76bb277a] | 245 | int cmp = 1; /* result of strcmp ( -ve for <, 0 for =, +ve for > ) */ |
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[be97baf] | 246 | if (cached_survey == back_ptr) { |
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| 247 | cmp = strcmp(cached_station->ident, name); |
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| 248 | if (cmp <= 0) ptr = cached_station; |
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| 249 | } |
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| 250 | while (ptr && (cmp = strcmp(ptr->ident, name))<0) { |
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[a420b49] | 251 | ptrPrev = ptr; |
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| 252 | ptr = ptr->right; |
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| 253 | } |
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| 254 | if (cmp) { |
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| 255 | /* ie we got to one that was higher, or the end */ |
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[be97baf] | 256 | prefix *newptr; |
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| 257 | name = osrealloc(name, i); |
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| 258 | newptr = osnew(prefix); |
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[647407d] | 259 | newptr->ident = name; |
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[be97baf] | 260 | name = NULL; |
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[a420b49] | 261 | if (ptrPrev == NULL) |
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[647407d] | 262 | back_ptr->down = newptr; |
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[a420b49] | 263 | else |
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[647407d] | 264 | ptrPrev->right = newptr; |
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| 265 | newptr->right = ptr; |
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| 266 | newptr->down = NULL; |
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| 267 | newptr->pos = NULL; |
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[6adb88c] | 268 | newptr->shape = 0; |
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[647407d] | 269 | newptr->stn = NULL; |
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| 270 | newptr->up = back_ptr; |
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[d333899] | 271 | newptr->filename = file.filename; |
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| 272 | newptr->line = file.line; |
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[421b7d2] | 273 | newptr->min_export = newptr->max_export = 0; |
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[95c3272] | 274 | newptr->sflags = BIT(SFLAGS_SURVEY); |
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| 275 | if (fSuspectTypo && !fImplicitPrefix) |
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| 276 | newptr->sflags |= BIT(SFLAGS_SUSPECTTYPO); |
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[647407d] | 277 | ptr = newptr; |
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[63d4f07] | 278 | fNew = true; |
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[a420b49] | 279 | } |
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[be97baf] | 280 | cached_survey = back_ptr; |
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| 281 | cached_station = ptr; |
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[d1b1380] | 282 | } |
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[fb2e93c] | 283 | depth++; |
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[63d4f07] | 284 | f_optional = false; /* disallow after first level */ |
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[5b4085b] | 285 | if (isSep(ch)) get_pos(&fp_firstsep); |
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[a420b49] | 286 | } while (isSep(ch)); |
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[be97baf] | 287 | if (name) osfree(name); |
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| 288 | |
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[d40f787] | 289 | /* don't warn about a station that is referred to twice */ |
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[95c3272] | 290 | if (!fNew) ptr->sflags &= ~BIT(SFLAGS_SUSPECTTYPO); |
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[421b7d2] | 291 | |
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[6430f0e] | 292 | if (fNew) { |
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[95c3272] | 293 | /* fNew means SFLAGS_SURVEY is currently set */ |
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[4c07c51] | 294 | SVX_ASSERT(TSTBIT(ptr->sflags, SFLAGS_SURVEY)); |
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[c00c74a9] | 295 | if (!fSurvey) { |
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| 296 | ptr->sflags &= ~BIT(SFLAGS_SURVEY); |
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[27b8b59] | 297 | if (TSTBIT(pcs->infer, INFER_EXPORTS)) ptr->min_export = USHRT_MAX; |
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[c00c74a9] | 298 | } |
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[6430f0e] | 299 | } else { |
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| 300 | /* check that the same name isn't being used for a survey and station */ |
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[95c3272] | 301 | if (fSurvey ^ TSTBIT(ptr->sflags, SFLAGS_SURVEY)) { |
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[0b8c321] | 302 | /* TRANSLATORS: Here "station" is a survey station, not a train station. |
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| 303 | * |
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| 304 | * Here "survey" is a "cave map" rather than list of questions - it should be |
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| 305 | * translated to the terminology that cavers using the language would use. |
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| 306 | */ |
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[cab0f26] | 307 | compile_diagnostic(DIAG_ERR, /*“%s” can’t be both a station and a survey*/27, |
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| 308 | sprint_prefix(ptr)); |
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[6430f0e] | 309 | } |
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[27b8b59] | 310 | if (!fSurvey && TSTBIT(pcs->infer, INFER_EXPORTS)) ptr->min_export = USHRT_MAX; |
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[051a72b] | 311 | } |
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| 312 | |
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[932f7e9] | 313 | /* check the export level */ |
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| 314 | #if 0 |
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| 315 | printf("R min %d max %d depth %d pfx %s\n", |
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| 316 | ptr->min_export, ptr->max_export, depth, sprint_prefix(ptr)); |
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| 317 | #endif |
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[c00c74a9] | 318 | if (ptr->min_export == 0 || ptr->min_export == USHRT_MAX) { |
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[932f7e9] | 319 | if (depth > ptr->max_export) ptr->max_export = depth; |
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| 320 | } else if (ptr->max_export < depth) { |
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[dd5b1a8] | 321 | prefix *survey = ptr; |
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| 322 | char *s; |
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[93e3492] | 323 | const char *p; |
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[dd5b1a8] | 324 | int level; |
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| 325 | for (level = ptr->max_export + 1; level; level--) { |
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| 326 | survey = survey->up; |
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[4c07c51] | 327 | SVX_ASSERT(survey); |
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[dd5b1a8] | 328 | } |
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| 329 | s = osstrdup(sprint_prefix(survey)); |
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[93e3492] | 330 | p = sprint_prefix(ptr); |
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[016068a] | 331 | if (survey->filename) { |
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[cab0f26] | 332 | compile_diagnostic_pfx(DIAG_ERR, survey, |
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| 333 | /*Station “%s” not exported from survey “%s”*/26, |
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| 334 | p, s); |
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[93e3492] | 335 | } else { |
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[cab0f26] | 336 | compile_diagnostic(DIAG_ERR, /*Station “%s” not exported from survey “%s”*/26, p, s); |
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[016068a] | 337 | } |
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[dd5b1a8] | 338 | osfree(s); |
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[932f7e9] | 339 | #if 0 |
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| 340 | printf(" *** pfx %s warning not exported enough depth %d " |
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[421b7d2] | 341 | "ptr->max_export %d\n", sprint_prefix(ptr), |
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[932f7e9] | 342 | depth, ptr->max_export); |
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| 343 | #endif |
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| 344 | } |
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[0fa7aac] | 345 | if (!fImplicitPrefix && (pfx_flags & PFX_WARN_SEPARATOR)) { |
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[5b4085b] | 346 | filepos fp_tmp; |
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| 347 | get_pos(&fp_tmp); |
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| 348 | set_pos(&fp_firstsep); |
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| 349 | compile_diagnostic(DIAG_WARN|DIAG_COL, /*Separator in survey name*/392); |
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| 350 | set_pos(&fp_tmp); |
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[0fa7aac] | 351 | } |
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[a420b49] | 352 | return ptr; |
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[d1b1380] | 353 | } |
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| 354 | |
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[21c226e] | 355 | /* if numeric expr is omitted: if f_optional return HUGE_REAL, else longjmp */ |
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| 356 | static real |
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[5a0ab6a] | 357 | read_number(bool f_optional, bool f_unsigned) |
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[a420b49] | 358 | { |
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[63d4f07] | 359 | bool fPositive = true, fDigits = false; |
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[a420b49] | 360 | real n = (real)0.0; |
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[c80bd34] | 361 | filepos fp; |
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| 362 | int ch_old; |
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[a420b49] | 363 | |
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[c80bd34] | 364 | get_pos(&fp); |
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| 365 | ch_old = ch; |
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[5a0ab6a] | 366 | if (!f_unsigned) { |
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| 367 | fPositive = !isMinus(ch); |
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| 368 | if (isSign(ch)) nextch(); |
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| 369 | } |
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[a420b49] | 370 | |
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| 371 | while (isdigit(ch)) { |
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[6974a34] | 372 | n = n * (real)10.0 + (char)(ch - '0'); |
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[d1b1380] | 373 | nextch(); |
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[63d4f07] | 374 | fDigits = true; |
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[a420b49] | 375 | } |
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| 376 | |
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| 377 | if (isDecimal(ch)) { |
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| 378 | real mult = (real)1.0; |
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| 379 | nextch(); |
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| 380 | while (isdigit(ch)) { |
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| 381 | mult *= (real).1; |
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| 382 | n += (char)(ch - '0') * mult; |
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[63d4f07] | 383 | fDigits = true; |
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[a420b49] | 384 | nextch(); |
---|
| 385 | } |
---|
| 386 | } |
---|
| 387 | |
---|
| 388 | /* !'fRead' => !fDigits so fDigits => 'fRead' */ |
---|
| 389 | if (fDigits) return (fPositive ? n : -n); |
---|
| 390 | |
---|
| 391 | /* didn't read a valid number. If it's optional, reset filepos & return */ |
---|
[4fb15a1] | 392 | set_pos(&fp); |
---|
[21c226e] | 393 | if (f_optional) { |
---|
[a420b49] | 394 | return HUGE_REAL; |
---|
| 395 | } |
---|
| 396 | |
---|
[c80bd34] | 397 | if (isOmit(ch_old)) { |
---|
[cab0f26] | 398 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Field may not be omitted*/8); |
---|
[647407d] | 399 | } else { |
---|
[cab0f26] | 400 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting numeric field, found “%s”*/9); |
---|
[647407d] | 401 | } |
---|
| 402 | LONGJMP(file.jbSkipLine); |
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[a420b49] | 403 | return 0.0; /* for brain-fried compilers */ |
---|
[d1b1380] | 404 | } |
---|
[647407d] | 405 | |
---|
[5a0ab6a] | 406 | static real |
---|
[4ca3219] | 407 | read_quadrant(bool f_optional) |
---|
| 408 | { |
---|
[5a0ab6a] | 409 | enum { |
---|
| 410 | POINT_N = 0, |
---|
| 411 | POINT_E = 1, |
---|
| 412 | POINT_S = 2, |
---|
| 413 | POINT_W = 3, |
---|
| 414 | POINT_NONE = -1 |
---|
| 415 | }; |
---|
| 416 | static const sztok pointtab[] = { |
---|
| 417 | {"E", POINT_E }, |
---|
| 418 | {"N", POINT_N }, |
---|
| 419 | {"S", POINT_S }, |
---|
| 420 | {"W", POINT_W }, |
---|
| 421 | {NULL, POINT_NONE } |
---|
| 422 | }; |
---|
| 423 | static const sztok pointewtab[] = { |
---|
| 424 | {"E", POINT_E }, |
---|
| 425 | {"W", POINT_W }, |
---|
| 426 | {NULL, POINT_NONE } |
---|
| 427 | }; |
---|
| 428 | if (f_optional && isOmit(ch)) { |
---|
| 429 | return HUGE_REAL; |
---|
| 430 | } |
---|
[9d9bee9] | 431 | const int quad = 90; |
---|
| 432 | filepos fp; |
---|
| 433 | get_pos(&fp); |
---|
[5a0ab6a] | 434 | get_token_no_blanks(); |
---|
| 435 | int first_point = match_tok(pointtab, TABSIZE(pointtab)); |
---|
| 436 | if (first_point == POINT_NONE) { |
---|
| 437 | set_pos(&fp); |
---|
| 438 | if (isOmit(ch)) { |
---|
| 439 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Field may not be omitted*/8); |
---|
| 440 | } |
---|
| 441 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
---|
| 442 | LONGJMP(file.jbSkipLine); |
---|
| 443 | return 0.0; /* for brain-fried compilers */ |
---|
[9d9bee9] | 444 | } |
---|
[63d4f07] | 445 | real r = read_number(true, true); |
---|
[5a0ab6a] | 446 | if (r == HUGE_REAL) { |
---|
| 447 | if (isSign(ch) || isDecimal(ch)) { |
---|
| 448 | /* Give better errors for S-0E, N+10W, N.E, etc. */ |
---|
[9d9bee9] | 449 | set_pos(&fp); |
---|
[728874f9] | 450 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
---|
[9d9bee9] | 451 | LONGJMP(file.jbSkipLine); |
---|
| 452 | return 0.0; /* for brain-fried compilers */ |
---|
| 453 | } |
---|
[5a0ab6a] | 454 | /* N, S, E or W. */ |
---|
| 455 | return first_point * quad; |
---|
| 456 | } |
---|
| 457 | if (first_point == POINT_E || first_point == POINT_W) { |
---|
[9d9bee9] | 458 | set_pos(&fp); |
---|
[728874f9] | 459 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
---|
[9d9bee9] | 460 | LONGJMP(file.jbSkipLine); |
---|
| 461 | return 0.0; /* for brain-fried compilers */ |
---|
[4ca3219] | 462 | } |
---|
[5a0ab6a] | 463 | |
---|
[eb429bf] | 464 | get_token_no_blanks(); |
---|
| 465 | int second_point = match_tok(pointewtab, TABSIZE(pointewtab)); |
---|
| 466 | if (second_point == POINT_NONE) { |
---|
[5a0ab6a] | 467 | set_pos(&fp); |
---|
| 468 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
---|
| 469 | LONGJMP(file.jbSkipLine); |
---|
| 470 | return 0.0; /* for brain-fried compilers */ |
---|
[4ca3219] | 471 | } |
---|
[5a0ab6a] | 472 | |
---|
[eb429bf] | 473 | if (r > quad) { |
---|
[5a0ab6a] | 474 | set_pos(&fp); |
---|
[eb429bf] | 475 | compile_diagnostic_token_show(DIAG_ERR|DIAG_COL, /*Suspicious compass reading*/59); |
---|
[5a0ab6a] | 476 | LONGJMP(file.jbSkipLine); |
---|
| 477 | return 0.0; /* for brain-fried compilers */ |
---|
[4ca3219] | 478 | } |
---|
[5a0ab6a] | 479 | |
---|
| 480 | if (first_point == POINT_N) { |
---|
| 481 | if (second_point == POINT_W) { |
---|
| 482 | r = quad * 4 - r; |
---|
| 483 | } |
---|
| 484 | } else { |
---|
| 485 | if (second_point == POINT_W) { |
---|
| 486 | r += quad * 2; |
---|
| 487 | } else { |
---|
| 488 | r = quad * 2 - r; |
---|
| 489 | } |
---|
| 490 | } |
---|
| 491 | return r; |
---|
[4ca3219] | 492 | } |
---|
| 493 | |
---|
[21c226e] | 494 | extern real |
---|
[d3241e6] | 495 | read_numeric(bool f_optional) |
---|
| 496 | { |
---|
| 497 | skipblanks(); |
---|
[63d4f07] | 498 | return read_number(f_optional, false); |
---|
[d3241e6] | 499 | } |
---|
| 500 | |
---|
| 501 | extern real |
---|
[61513b57] | 502 | read_numeric_multi(bool f_optional, bool f_quadrants, int *p_n_readings) |
---|
[21c226e] | 503 | { |
---|
| 504 | size_t n_readings = 0; |
---|
| 505 | real tot = (real)0.0; |
---|
| 506 | |
---|
| 507 | skipblanks(); |
---|
| 508 | if (!isOpen(ch)) { |
---|
[4699c40] | 509 | real r = 0; |
---|
[61513b57] | 510 | if (!f_quadrants) |
---|
[63d4f07] | 511 | r = read_number(f_optional, false); |
---|
[61513b57] | 512 | else |
---|
[5a0ab6a] | 513 | r = read_quadrant(f_optional); |
---|
[21c226e] | 514 | if (p_n_readings) *p_n_readings = (r == HUGE_REAL ? 0 : 1); |
---|
| 515 | return r; |
---|
| 516 | } |
---|
| 517 | nextch(); |
---|
| 518 | |
---|
| 519 | skipblanks(); |
---|
| 520 | do { |
---|
[9d9bee9] | 521 | if (!f_quadrants) |
---|
[63d4f07] | 522 | tot += read_number(false, false); |
---|
[61513b57] | 523 | else |
---|
[63d4f07] | 524 | tot += read_quadrant(false); |
---|
[21c226e] | 525 | ++n_readings; |
---|
| 526 | skipblanks(); |
---|
| 527 | } while (!isClose(ch)); |
---|
| 528 | nextch(); |
---|
| 529 | |
---|
| 530 | if (p_n_readings) *p_n_readings = n_readings; |
---|
| 531 | /* FIXME: special averaging for bearings ... */ |
---|
| 532 | /* And for percentage gradient */ |
---|
| 533 | return tot / n_readings; |
---|
| 534 | } |
---|
| 535 | |
---|
[2aa2f3f] | 536 | /* read numeric expr or omit (return HUGE_REAL); else longjmp */ |
---|
| 537 | extern real |
---|
[00b10c1] | 538 | read_bearing_multi_or_omit(bool f_quadrants, int *p_n_readings) |
---|
[2aa2f3f] | 539 | { |
---|
[9d9bee9] | 540 | real v; |
---|
[63d4f07] | 541 | v = read_numeric_multi(true, f_quadrants, p_n_readings); |
---|
[9d9bee9] | 542 | if (v == HUGE_REAL) { |
---|
| 543 | if (!isOmit(ch)) { |
---|
| 544 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting numeric field, found “%s”*/9); |
---|
| 545 | LONGJMP(file.jbSkipLine); |
---|
| 546 | return 0.0; /* for brain-fried compilers */ |
---|
[2aa2f3f] | 547 | } |
---|
| 548 | nextch(); |
---|
| 549 | } |
---|
| 550 | return v; |
---|
| 551 | } |
---|
| 552 | |
---|
[950a829] | 553 | /* Don't skip blanks, variable error code */ |
---|
| 554 | static unsigned int |
---|
[75e67ab] | 555 | read_uint_internal(int errmsg, const filepos *fp) |
---|
[647407d] | 556 | { |
---|
[421b7d2] | 557 | unsigned int n = 0; |
---|
[647407d] | 558 | if (!isdigit(ch)) { |
---|
[029cc3f] | 559 | if (fp) set_pos(fp); |
---|
[cab0f26] | 560 | compile_diagnostic_token_show(DIAG_ERR, errmsg); |
---|
[647407d] | 561 | LONGJMP(file.jbSkipLine); |
---|
| 562 | } |
---|
| 563 | while (isdigit(ch)) { |
---|
| 564 | n = n * 10 + (char)(ch - '0'); |
---|
| 565 | nextch(); |
---|
| 566 | } |
---|
| 567 | return n; |
---|
| 568 | } |
---|
[76bb277a] | 569 | |
---|
[950a829] | 570 | extern unsigned int |
---|
| 571 | read_uint(void) |
---|
| 572 | { |
---|
| 573 | skipblanks(); |
---|
[0804fbe] | 574 | return read_uint_internal(/*Expecting numeric field, found “%s”*/9, NULL); |
---|
[950a829] | 575 | } |
---|
| 576 | |
---|
[5b9b9d4] | 577 | extern int |
---|
| 578 | read_int(int min_val, int max_val) |
---|
| 579 | { |
---|
| 580 | skipblanks(); |
---|
| 581 | unsigned n = 0; |
---|
| 582 | filepos fp; |
---|
| 583 | |
---|
| 584 | get_pos(&fp); |
---|
[1000d9d] | 585 | bool negated = isMinus(ch); |
---|
| 586 | unsigned limit; |
---|
| 587 | if (negated) { |
---|
| 588 | limit = (unsigned)(min_val == INT_MIN ? INT_MIN : -min_val); |
---|
| 589 | } else { |
---|
| 590 | limit = (unsigned)max_val; |
---|
| 591 | } |
---|
[5b9b9d4] | 592 | if (isSign(ch)) nextch(); |
---|
| 593 | |
---|
| 594 | if (!isdigit(ch)) { |
---|
| 595 | bad_value: |
---|
| 596 | set_pos(&fp); |
---|
| 597 | /* TRANSLATORS: The first %d will be replaced by the (inclusive) lower |
---|
| 598 | * bound and the second by the (inclusive) upper bound, for example: |
---|
| 599 | * Expecting integer in range -60 to 60 |
---|
| 600 | */ |
---|
| 601 | compile_diagnostic(DIAG_ERR|DIAG_NUM, /*Expecting integer in range %d to %d*/489); |
---|
| 602 | LONGJMP(file.jbSkipLine); |
---|
| 603 | } |
---|
| 604 | |
---|
| 605 | while (isdigit(ch)) { |
---|
| 606 | unsigned old_n = n; |
---|
| 607 | n = n * 10 + (char)(ch - '0'); |
---|
| 608 | if (n > limit || n < old_n) { |
---|
| 609 | goto bad_value; |
---|
| 610 | } |
---|
| 611 | nextch(); |
---|
| 612 | } |
---|
| 613 | if (isDecimal(ch)) goto bad_value; |
---|
| 614 | |
---|
| 615 | if (negated) { |
---|
| 616 | if (n > (unsigned)INT_MAX) { |
---|
| 617 | // Avoid unportable casting. |
---|
| 618 | return INT_MIN; |
---|
| 619 | } |
---|
| 620 | return -(int)n; |
---|
| 621 | } |
---|
| 622 | return (int)n; |
---|
| 623 | } |
---|
| 624 | |
---|
[76bb277a] | 625 | extern void |
---|
[0532954] | 626 | read_string(string *pstr) |
---|
[76bb277a] | 627 | { |
---|
[0532954] | 628 | s_clear(pstr); |
---|
[76bb277a] | 629 | |
---|
| 630 | skipblanks(); |
---|
| 631 | if (ch == '\"') { |
---|
[1157304] | 632 | /* String quoted in "" */ |
---|
[76bb277a] | 633 | nextch(); |
---|
[457a390] | 634 | while (1) { |
---|
| 635 | if (isEol(ch)) { |
---|
[cab0f26] | 636 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Missing \"*/69); |
---|
[4fb15a1] | 637 | LONGJMP(file.jbSkipLine); |
---|
[457a390] | 638 | } |
---|
| 639 | |
---|
| 640 | if (ch == '\"') break; |
---|
| 641 | |
---|
[0532954] | 642 | s_catchar(pstr, ch); |
---|
[457a390] | 643 | nextch(); |
---|
| 644 | } |
---|
[66f5fc4] | 645 | nextch(); |
---|
[457a390] | 646 | } else { |
---|
[1157304] | 647 | /* Unquoted string */ |
---|
[457a390] | 648 | while (1) { |
---|
| 649 | if (isEol(ch) || isComm(ch)) { |
---|
[0532954] | 650 | if (s_empty(pstr)) { |
---|
[cab0f26] | 651 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Expecting string field*/121); |
---|
[6f61f83] | 652 | LONGJMP(file.jbSkipLine); |
---|
[b97d134] | 653 | } |
---|
[457a390] | 654 | return; |
---|
[76bb277a] | 655 | } |
---|
| 656 | |
---|
[457a390] | 657 | if (isBlank(ch)) break; |
---|
[76bb277a] | 658 | |
---|
[0532954] | 659 | s_catchar(pstr, ch); |
---|
[457a390] | 660 | nextch(); |
---|
| 661 | } |
---|
[76bb277a] | 662 | } |
---|
| 663 | } |
---|
[950a829] | 664 | |
---|
| 665 | extern void |
---|
[b5a3219] | 666 | read_date(int *py, int *pm, int *pd) |
---|
[950a829] | 667 | { |
---|
[734f5f4] | 668 | unsigned int y = 0, m = 0, d = 0; |
---|
[1d74718] | 669 | filepos fp_date; |
---|
[950a829] | 670 | |
---|
| 671 | skipblanks(); |
---|
[029cc3f] | 672 | |
---|
[1d74718] | 673 | get_pos(&fp_date); |
---|
| 674 | y = read_uint_internal(/*Expecting date, found “%s”*/198, &fp_date); |
---|
[e0c7cd1] | 675 | /* Two digit year is 19xx. */ |
---|
[734f5f4] | 676 | if (y < 100) { |
---|
| 677 | filepos fp_save; |
---|
| 678 | get_pos(&fp_save); |
---|
| 679 | y += 1900; |
---|
| 680 | set_pos(&fp_date); |
---|
| 681 | /* TRANSLATORS: %d will be replaced by the assumed year, e.g. 1918 */ |
---|
| 682 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Assuming 2 digit year is %d*/76, y); |
---|
| 683 | set_pos(&fp_save); |
---|
| 684 | } |
---|
[1ee204e] | 685 | if (y < 1900 || y > 2078) { |
---|
[1d74718] | 686 | set_pos(&fp_date); |
---|
[c270761] | 687 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Invalid year (< 1900 or > 2078)*/58); |
---|
[e0c7cd1] | 688 | LONGJMP(file.jbSkipLine); |
---|
| 689 | return; /* for brain-fried compilers */ |
---|
| 690 | } |
---|
[950a829] | 691 | if (ch == '.') { |
---|
[1d74718] | 692 | filepos fp; |
---|
[950a829] | 693 | nextch(); |
---|
[1d74718] | 694 | get_pos(&fp); |
---|
| 695 | m = read_uint_internal(/*Expecting date, found “%s”*/198, &fp_date); |
---|
[e0c7cd1] | 696 | if (m < 1 || m > 12) { |
---|
[1d74718] | 697 | set_pos(&fp); |
---|
[c270761] | 698 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Invalid month*/86); |
---|
[e0c7cd1] | 699 | LONGJMP(file.jbSkipLine); |
---|
| 700 | return; /* for brain-fried compilers */ |
---|
[79d84d9] | 701 | } |
---|
[950a829] | 702 | if (ch == '.') { |
---|
| 703 | nextch(); |
---|
[1d74718] | 704 | get_pos(&fp); |
---|
| 705 | d = read_uint_internal(/*Expecting date, found “%s”*/198, &fp_date); |
---|
[e0c7cd1] | 706 | if (d < 1 || d > last_day(y, m)) { |
---|
[1d74718] | 707 | set_pos(&fp); |
---|
[736f7df] | 708 | /* TRANSLATORS: e.g. 31st of April, or 32nd of any month */ |
---|
[c270761] | 709 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Invalid day of the month*/87); |
---|
[e0c7cd1] | 710 | LONGJMP(file.jbSkipLine); |
---|
| 711 | return; /* for brain-fried compilers */ |
---|
| 712 | } |
---|
[950a829] | 713 | } |
---|
| 714 | } |
---|
[b5a3219] | 715 | if (py) *py = y; |
---|
| 716 | if (pm) *pm = m; |
---|
| 717 | if (pd) *pd = d; |
---|
[950a829] | 718 | } |
---|