[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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[4c83f84] | 20 | #include <config.h> |
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[d1b1380] | 21 | |
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[c00c74a9] | 22 | #include <limits.h> |
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[be97baf] | 23 | #include <stddef.h> /* for offsetof */ |
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[c00c74a9] | 24 | |
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[a420b49] | 25 | #include "cavern.h" |
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[5a0ab6a] | 26 | #include "commands.h" /* For match_tok(), etc */ |
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[1ee204e] | 27 | #include "date.h" |
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[dd5b1a8] | 28 | #include "debug.h" |
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[a1706d1] | 29 | #include "filename.h" |
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| 30 | #include "message.h" |
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[d1b1380] | 31 | #include "readval.h" |
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| 32 | #include "datain.h" |
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[fb2e93c] | 33 | #include "netbits.h" |
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[8cf2e04] | 34 | #include "osalloc.h" |
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[76bb277a] | 35 | #include "str.h" |
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[d1b1380] | 36 | |
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[7d5f3c0] | 37 | #ifdef HAVE_SETJMP_H |
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[647407d] | 38 | # define LONGJMP(JB) longjmp((JB), 1) |
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| 39 | #else |
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| 40 | # define LONGJMP(JB) exit(1) |
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| 41 | #endif |
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| 42 | |
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[c86cc71] | 43 | int root_depr_count = 0; |
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| 44 | |
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[710ecc1] | 45 | static prefix * |
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[a2c33ae] | 46 | new_anon_station(void) |
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[710ecc1] | 47 | { |
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[a2c33ae] | 48 | prefix *name = osnew(prefix); |
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| 49 | name->pos = NULL; |
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| 50 | name->ident = NULL; |
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| 51 | name->shape = 0; |
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| 52 | name->stn = NULL; |
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| 53 | name->up = pcs->Prefix; |
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| 54 | name->down = NULL; |
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| 55 | name->filename = file.filename; |
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| 56 | name->line = file.line; |
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[5fc783b] | 57 | name->min_export = name->max_export = 0; |
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[a2c33ae] | 58 | name->sflags = BIT(SFLAGS_ANON); |
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| 59 | /* Keep linked list of anon stations for node stats. */ |
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| 60 | name->right = anon_list; |
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| 61 | anon_list = name; |
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| 62 | return name; |
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[710ecc1] | 63 | } |
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| 64 | |
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[c458cf7] | 65 | /* if prefix is omitted: if PFX_OPT set return NULL, otherwise use longjmp */ |
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| 66 | extern prefix * |
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| 67 | read_prefix(unsigned pfx_flags) |
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[a420b49] | 68 | { |
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[c458cf7] | 69 | bool f_optional = !!(pfx_flags & PFX_OPT); |
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| 70 | bool fSurvey = !!(pfx_flags & PFX_SURVEY); |
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| 71 | bool fSuspectTypo = !!(pfx_flags & PFX_SUSPECT_TYPO); |
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[4a6a094] | 72 | prefix *back_ptr, *ptr; |
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[a420b49] | 73 | char *name; |
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| 74 | size_t name_len = 32; |
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[eb18f4d] | 75 | size_t i; |
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[647407d] | 76 | bool fNew; |
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[63d4f07] | 77 | bool fImplicitPrefix = true; |
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[932f7e9] | 78 | int depth = -1; |
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[d3fa693] | 79 | filepos here; |
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[5b4085b] | 80 | filepos fp_firstsep; |
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[a420b49] | 81 | |
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| 82 | skipblanks(); |
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[d3fa693] | 83 | get_pos(&here); |
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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 | nextch(); |
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| 112 | if (isBlank(ch) || isEol(ch)) { |
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[dcbcae0] | 113 | if (!isSep(first_ch)) |
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| 114 | goto anon_wall_station; |
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| 115 | /* A single separator alone ('.' by default) is an anonymous |
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| 116 | * station which is on a point inside the passage and implies |
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| 117 | * the leg to it is a splay. |
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| 118 | */ |
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| 119 | if (TSTBIT(pcs->flags, FLAGS_ANON_ONE_END)) { |
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[9f55538] | 120 | set_pos(&here); |
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[d0be687d] | 121 | compile_diagnostic(DIAG_ERR|DIAG_WORD, /*Can't have a leg between two anonymous stations*/3); |
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[dcbcae0] | 122 | LONGJMP(file.jbSkipLine); |
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[710ecc1] | 123 | } |
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[dcbcae0] | 124 | pcs->flags |= BIT(FLAGS_ANON_ONE_END) | BIT(FLAGS_IMPLICIT_SPLAY); |
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[a2c33ae] | 125 | return new_anon_station(); |
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[710ecc1] | 126 | } |
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[dcbcae0] | 127 | if (isSep(first_ch) && ch == first_ch) { |
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| 128 | nextch(); |
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| 129 | if (isBlank(ch) || isEol(ch)) { |
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| 130 | /* A double separator ('..' by default) is an anonymous station |
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| 131 | * which is on the wall and implies the leg to it is a splay. |
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| 132 | */ |
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| 133 | prefix * pfx; |
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| 134 | anon_wall_station: |
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| 135 | if (TSTBIT(pcs->flags, FLAGS_ANON_ONE_END)) { |
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[9f55538] | 136 | set_pos(&here); |
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[d0be687d] | 137 | compile_diagnostic(DIAG_ERR|DIAG_WORD, /*Can't have a leg between two anonymous stations*/3); |
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[dcbcae0] | 138 | LONGJMP(file.jbSkipLine); |
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| 139 | } |
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[da65891] | 140 | pcs->flags |= BIT(FLAGS_ANON_ONE_END) | BIT(FLAGS_IMPLICIT_SPLAY); |
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[dcbcae0] | 141 | pfx = new_anon_station(); |
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| 142 | pfx->sflags |= BIT(SFLAGS_WALL); |
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| 143 | return pfx; |
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| 144 | } |
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| 145 | if (ch == first_ch) { |
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| 146 | nextch(); |
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| 147 | if (isBlank(ch) || isEol(ch)) { |
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| 148 | /* A triple separator ('...' by default) is an anonymous |
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| 149 | * station, but otherwise not handled specially (e.g. for |
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| 150 | * a single leg down an unexplored side passage to a station |
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| 151 | * which isn't refindable). |
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| 152 | */ |
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| 153 | if (TSTBIT(pcs->flags, FLAGS_ANON_ONE_END)) { |
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[9f55538] | 154 | set_pos(&here); |
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[d0be687d] | 155 | compile_diagnostic(DIAG_ERR|DIAG_WORD, /*Can't have a leg between two anonymous stations*/3); |
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[dcbcae0] | 156 | LONGJMP(file.jbSkipLine); |
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| 157 | } |
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| 158 | pcs->flags |= BIT(FLAGS_ANON_ONE_END); |
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| 159 | return new_anon_station(); |
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| 160 | } |
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| 161 | } |
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| 162 | } |
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[710ecc1] | 163 | set_pos(&here); |
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| 164 | } |
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[a420b49] | 165 | ptr = pcs->Prefix; |
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| 166 | } |
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| 167 | |
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| 168 | i = 0; |
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[be97baf] | 169 | name = NULL; |
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[a420b49] | 170 | do { |
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[63d4f07] | 171 | fNew = false; |
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[be97baf] | 172 | if (name == NULL) { |
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| 173 | /* Need a new name buffer */ |
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| 174 | name = osmalloc(name_len); |
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| 175 | } |
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[a420b49] | 176 | /* i==0 iff this is the first pass */ |
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| 177 | if (i) { |
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| 178 | i = 0; |
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| 179 | nextch(); |
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| 180 | } |
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| 181 | while (isNames(ch)) { |
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| 182 | if (i < pcs->Truncate) { |
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| 183 | /* truncate name */ |
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[1157304] | 184 | name[i++] = (pcs->Case == LOWER ? tolower(ch) : |
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| 185 | (pcs->Case == OFF ? ch : toupper(ch))); |
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[a420b49] | 186 | if (i >= name_len) { |
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| 187 | name_len = name_len + name_len; |
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| 188 | name = osrealloc(name, name_len); |
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| 189 | } |
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[8cf2e04] | 190 | } |
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[a420b49] | 191 | nextch(); |
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[8cf2e04] | 192 | } |
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[5b4085b] | 193 | if (isSep(ch)) { |
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[63d4f07] | 194 | fImplicitPrefix = false; |
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[5b4085b] | 195 | get_pos(&fp_firstsep); |
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| 196 | } |
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[a420b49] | 197 | if (i == 0) { |
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| 198 | osfree(name); |
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[21c226e] | 199 | if (!f_optional) { |
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[ee1d81f] | 200 | if (isEol(ch)) { |
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[84c60fc] | 201 | if (fSurvey) { |
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[cab0f26] | 202 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Expecting survey name*/89); |
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[84c60fc] | 203 | } else { |
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[cab0f26] | 204 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Expecting station name*/28); |
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[84c60fc] | 205 | } |
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[ee1d81f] | 206 | } else { |
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[736f7df] | 207 | /* TRANSLATORS: Here "station" is a survey station, not a train station. */ |
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[cab0f26] | 208 | 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] | 209 | } |
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[647407d] | 210 | LONGJMP(file.jbSkipLine); |
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| 211 | } |
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[a420b49] | 212 | return (prefix *)NULL; |
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[d1b1380] | 213 | } |
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[a420b49] | 214 | |
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[76bb277a] | 215 | name[i++] = '\0'; |
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[cb3d1e2] | 216 | |
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[a420b49] | 217 | back_ptr = ptr; |
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| 218 | ptr = ptr->down; |
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| 219 | if (ptr == NULL) { |
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| 220 | /* Special case first time around at each level */ |
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[be97baf] | 221 | name = osrealloc(name, i); |
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[a420b49] | 222 | ptr = osnew(prefix); |
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| 223 | ptr->ident = name; |
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[be97baf] | 224 | name = NULL; |
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[a420b49] | 225 | ptr->right = ptr->down = NULL; |
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| 226 | ptr->pos = NULL; |
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[6adb88c] | 227 | ptr->shape = 0; |
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[a420b49] | 228 | ptr->stn = NULL; |
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| 229 | ptr->up = back_ptr; |
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[d333899] | 230 | ptr->filename = file.filename; |
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| 231 | ptr->line = file.line; |
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[932f7e9] | 232 | ptr->min_export = ptr->max_export = 0; |
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[95c3272] | 233 | ptr->sflags = BIT(SFLAGS_SURVEY); |
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| 234 | if (fSuspectTypo && !fImplicitPrefix) |
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| 235 | ptr->sflags |= BIT(SFLAGS_SUSPECTTYPO); |
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[a420b49] | 236 | back_ptr->down = ptr; |
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[63d4f07] | 237 | fNew = true; |
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[a420b49] | 238 | } else { |
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[be97baf] | 239 | /* Use caching to speed up adding an increasing sequence to a |
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| 240 | * large survey */ |
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| 241 | static prefix *cached_survey = NULL, *cached_station = NULL; |
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[a420b49] | 242 | prefix *ptrPrev = NULL; |
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[76bb277a] | 243 | int cmp = 1; /* result of strcmp ( -ve for <, 0 for =, +ve for > ) */ |
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[be97baf] | 244 | if (cached_survey == back_ptr) { |
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| 245 | cmp = strcmp(cached_station->ident, name); |
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| 246 | if (cmp <= 0) ptr = cached_station; |
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| 247 | } |
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[f96897b] | 248 | while (ptr && (cmp = strcmp(ptr->ident, name)) < 0) { |
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[a420b49] | 249 | ptrPrev = ptr; |
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| 250 | ptr = ptr->right; |
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| 251 | } |
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| 252 | if (cmp) { |
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| 253 | /* ie we got to one that was higher, or the end */ |
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[be97baf] | 254 | prefix *newptr; |
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| 255 | name = osrealloc(name, i); |
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| 256 | newptr = osnew(prefix); |
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[647407d] | 257 | newptr->ident = name; |
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[be97baf] | 258 | name = NULL; |
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[a420b49] | 259 | if (ptrPrev == NULL) |
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[647407d] | 260 | back_ptr->down = newptr; |
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[a420b49] | 261 | else |
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[647407d] | 262 | ptrPrev->right = newptr; |
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| 263 | newptr->right = ptr; |
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| 264 | newptr->down = NULL; |
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| 265 | newptr->pos = NULL; |
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[6adb88c] | 266 | newptr->shape = 0; |
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[647407d] | 267 | newptr->stn = NULL; |
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| 268 | newptr->up = back_ptr; |
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[d333899] | 269 | newptr->filename = file.filename; |
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| 270 | newptr->line = file.line; |
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[421b7d2] | 271 | newptr->min_export = newptr->max_export = 0; |
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[95c3272] | 272 | newptr->sflags = BIT(SFLAGS_SURVEY); |
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| 273 | if (fSuspectTypo && !fImplicitPrefix) |
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| 274 | newptr->sflags |= BIT(SFLAGS_SUSPECTTYPO); |
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[647407d] | 275 | ptr = newptr; |
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[63d4f07] | 276 | fNew = true; |
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[a420b49] | 277 | } |
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[be97baf] | 278 | cached_survey = back_ptr; |
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| 279 | cached_station = ptr; |
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[d1b1380] | 280 | } |
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[fb2e93c] | 281 | depth++; |
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[63d4f07] | 282 | f_optional = false; /* disallow after first level */ |
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[d3fa693] | 283 | if (isSep(ch)) { |
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| 284 | get_pos(&fp_firstsep); |
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| 285 | if (!TSTBIT(ptr->sflags, SFLAGS_SURVEY)) { |
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| 286 | /* TRANSLATORS: Here "station" is a survey station, not a train station. |
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| 287 | * |
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| 288 | * Here "survey" is a "cave map" rather than list of questions - it should be |
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| 289 | * translated to the terminology that cavers using the language would use. |
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| 290 | */ |
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| 291 | compile_diagnostic(DIAG_ERR|DIAG_FROM(here), /*“%s” can’t be both a station and a survey*/27, |
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| 292 | sprint_prefix(ptr)); |
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| 293 | } |
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| 294 | } |
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[a420b49] | 295 | } while (isSep(ch)); |
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[be97baf] | 296 | if (name) osfree(name); |
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| 297 | |
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[d40f787] | 298 | /* don't warn about a station that is referred to twice */ |
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[95c3272] | 299 | if (!fNew) ptr->sflags &= ~BIT(SFLAGS_SUSPECTTYPO); |
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[421b7d2] | 300 | |
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[6430f0e] | 301 | if (fNew) { |
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[95c3272] | 302 | /* fNew means SFLAGS_SURVEY is currently set */ |
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[4c07c51] | 303 | SVX_ASSERT(TSTBIT(ptr->sflags, SFLAGS_SURVEY)); |
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[c00c74a9] | 304 | if (!fSurvey) { |
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| 305 | ptr->sflags &= ~BIT(SFLAGS_SURVEY); |
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[27b8b59] | 306 | if (TSTBIT(pcs->infer, INFER_EXPORTS)) ptr->min_export = USHRT_MAX; |
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[c00c74a9] | 307 | } |
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[6430f0e] | 308 | } else { |
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| 309 | /* check that the same name isn't being used for a survey and station */ |
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[95c3272] | 310 | if (fSurvey ^ TSTBIT(ptr->sflags, SFLAGS_SURVEY)) { |
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[0b8c321] | 311 | /* TRANSLATORS: Here "station" is a survey station, not a train station. |
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| 312 | * |
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| 313 | * Here "survey" is a "cave map" rather than list of questions - it should be |
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| 314 | * translated to the terminology that cavers using the language would use. |
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| 315 | */ |
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[d3fa693] | 316 | compile_diagnostic(DIAG_ERR|DIAG_FROM(here), /*“%s” can’t be both a station and a survey*/27, |
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[cab0f26] | 317 | sprint_prefix(ptr)); |
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[6430f0e] | 318 | } |
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[27b8b59] | 319 | if (!fSurvey && TSTBIT(pcs->infer, INFER_EXPORTS)) ptr->min_export = USHRT_MAX; |
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[051a72b] | 320 | } |
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| 321 | |
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[932f7e9] | 322 | /* check the export level */ |
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| 323 | #if 0 |
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| 324 | printf("R min %d max %d depth %d pfx %s\n", |
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| 325 | ptr->min_export, ptr->max_export, depth, sprint_prefix(ptr)); |
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| 326 | #endif |
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[c00c74a9] | 327 | if (ptr->min_export == 0 || ptr->min_export == USHRT_MAX) { |
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[932f7e9] | 328 | if (depth > ptr->max_export) ptr->max_export = depth; |
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| 329 | } else if (ptr->max_export < depth) { |
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[dd5b1a8] | 330 | prefix *survey = ptr; |
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| 331 | char *s; |
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[93e3492] | 332 | const char *p; |
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[dd5b1a8] | 333 | int level; |
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| 334 | for (level = ptr->max_export + 1; level; level--) { |
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| 335 | survey = survey->up; |
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[4c07c51] | 336 | SVX_ASSERT(survey); |
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[dd5b1a8] | 337 | } |
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| 338 | s = osstrdup(sprint_prefix(survey)); |
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[93e3492] | 339 | p = sprint_prefix(ptr); |
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[016068a] | 340 | if (survey->filename) { |
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[cab0f26] | 341 | compile_diagnostic_pfx(DIAG_ERR, survey, |
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| 342 | /*Station “%s” not exported from survey “%s”*/26, |
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| 343 | p, s); |
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[93e3492] | 344 | } else { |
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[cab0f26] | 345 | compile_diagnostic(DIAG_ERR, /*Station “%s” not exported from survey “%s”*/26, p, s); |
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[016068a] | 346 | } |
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[dd5b1a8] | 347 | osfree(s); |
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[932f7e9] | 348 | #if 0 |
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| 349 | printf(" *** pfx %s warning not exported enough depth %d " |
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[421b7d2] | 350 | "ptr->max_export %d\n", sprint_prefix(ptr), |
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[932f7e9] | 351 | depth, ptr->max_export); |
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| 352 | #endif |
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| 353 | } |
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[0fa7aac] | 354 | if (!fImplicitPrefix && (pfx_flags & PFX_WARN_SEPARATOR)) { |
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[5b4085b] | 355 | filepos fp_tmp; |
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| 356 | get_pos(&fp_tmp); |
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| 357 | set_pos(&fp_firstsep); |
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| 358 | compile_diagnostic(DIAG_WARN|DIAG_COL, /*Separator in survey name*/392); |
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| 359 | set_pos(&fp_tmp); |
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[0fa7aac] | 360 | } |
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[a420b49] | 361 | return ptr; |
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[d1b1380] | 362 | } |
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| 363 | |
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[21c226e] | 364 | /* if numeric expr is omitted: if f_optional return HUGE_REAL, else longjmp */ |
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| 365 | static real |
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[5a0ab6a] | 366 | read_number(bool f_optional, bool f_unsigned) |
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[a420b49] | 367 | { |
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[63d4f07] | 368 | bool fPositive = true, fDigits = false; |
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[a420b49] | 369 | real n = (real)0.0; |
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[c80bd34] | 370 | filepos fp; |
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| 371 | int ch_old; |
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[a420b49] | 372 | |
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[c80bd34] | 373 | get_pos(&fp); |
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| 374 | ch_old = ch; |
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[5a0ab6a] | 375 | if (!f_unsigned) { |
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| 376 | fPositive = !isMinus(ch); |
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| 377 | if (isSign(ch)) nextch(); |
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| 378 | } |
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[a420b49] | 379 | |
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| 380 | while (isdigit(ch)) { |
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[6974a34] | 381 | n = n * (real)10.0 + (char)(ch - '0'); |
---|
[d1b1380] | 382 | nextch(); |
---|
[63d4f07] | 383 | fDigits = true; |
---|
[a420b49] | 384 | } |
---|
| 385 | |
---|
| 386 | if (isDecimal(ch)) { |
---|
| 387 | real mult = (real)1.0; |
---|
| 388 | nextch(); |
---|
| 389 | while (isdigit(ch)) { |
---|
| 390 | mult *= (real).1; |
---|
| 391 | n += (char)(ch - '0') * mult; |
---|
[63d4f07] | 392 | fDigits = true; |
---|
[a420b49] | 393 | nextch(); |
---|
| 394 | } |
---|
| 395 | } |
---|
| 396 | |
---|
| 397 | /* !'fRead' => !fDigits so fDigits => 'fRead' */ |
---|
| 398 | if (fDigits) return (fPositive ? n : -n); |
---|
| 399 | |
---|
| 400 | /* didn't read a valid number. If it's optional, reset filepos & return */ |
---|
[4fb15a1] | 401 | set_pos(&fp); |
---|
[21c226e] | 402 | if (f_optional) { |
---|
[a420b49] | 403 | return HUGE_REAL; |
---|
| 404 | } |
---|
| 405 | |
---|
[c80bd34] | 406 | if (isOmit(ch_old)) { |
---|
[cab0f26] | 407 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Field may not be omitted*/8); |
---|
[647407d] | 408 | } else { |
---|
[cab0f26] | 409 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting numeric field, found “%s”*/9); |
---|
[647407d] | 410 | } |
---|
| 411 | LONGJMP(file.jbSkipLine); |
---|
[a420b49] | 412 | return 0.0; /* for brain-fried compilers */ |
---|
[d1b1380] | 413 | } |
---|
[647407d] | 414 | |
---|
[5a0ab6a] | 415 | static real |
---|
[4ca3219] | 416 | read_quadrant(bool f_optional) |
---|
| 417 | { |
---|
[5a0ab6a] | 418 | enum { |
---|
| 419 | POINT_N = 0, |
---|
| 420 | POINT_E = 1, |
---|
| 421 | POINT_S = 2, |
---|
| 422 | POINT_W = 3, |
---|
| 423 | POINT_NONE = -1 |
---|
| 424 | }; |
---|
| 425 | static const sztok pointtab[] = { |
---|
| 426 | {"E", POINT_E }, |
---|
| 427 | {"N", POINT_N }, |
---|
| 428 | {"S", POINT_S }, |
---|
| 429 | {"W", POINT_W }, |
---|
| 430 | {NULL, POINT_NONE } |
---|
| 431 | }; |
---|
| 432 | static const sztok pointewtab[] = { |
---|
| 433 | {"E", POINT_E }, |
---|
| 434 | {"W", POINT_W }, |
---|
| 435 | {NULL, POINT_NONE } |
---|
| 436 | }; |
---|
| 437 | if (f_optional && isOmit(ch)) { |
---|
| 438 | return HUGE_REAL; |
---|
| 439 | } |
---|
[9d9bee9] | 440 | const int quad = 90; |
---|
| 441 | filepos fp; |
---|
| 442 | get_pos(&fp); |
---|
[5a0ab6a] | 443 | get_token_no_blanks(); |
---|
| 444 | int first_point = match_tok(pointtab, TABSIZE(pointtab)); |
---|
| 445 | if (first_point == POINT_NONE) { |
---|
| 446 | set_pos(&fp); |
---|
| 447 | if (isOmit(ch)) { |
---|
| 448 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Field may not be omitted*/8); |
---|
| 449 | } |
---|
| 450 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
---|
| 451 | LONGJMP(file.jbSkipLine); |
---|
| 452 | return 0.0; /* for brain-fried compilers */ |
---|
[9d9bee9] | 453 | } |
---|
[63d4f07] | 454 | real r = read_number(true, true); |
---|
[5a0ab6a] | 455 | if (r == HUGE_REAL) { |
---|
| 456 | if (isSign(ch) || isDecimal(ch)) { |
---|
| 457 | /* Give better errors for S-0E, N+10W, N.E, etc. */ |
---|
[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 */ |
---|
| 462 | } |
---|
[5a0ab6a] | 463 | /* N, S, E or W. */ |
---|
| 464 | return first_point * quad; |
---|
| 465 | } |
---|
| 466 | if (first_point == POINT_E || first_point == POINT_W) { |
---|
[9d9bee9] | 467 | set_pos(&fp); |
---|
[728874f9] | 468 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
---|
[9d9bee9] | 469 | LONGJMP(file.jbSkipLine); |
---|
| 470 | return 0.0; /* for brain-fried compilers */ |
---|
[4ca3219] | 471 | } |
---|
[5a0ab6a] | 472 | |
---|
[eb429bf] | 473 | get_token_no_blanks(); |
---|
| 474 | int second_point = match_tok(pointewtab, TABSIZE(pointewtab)); |
---|
| 475 | if (second_point == POINT_NONE) { |
---|
[5a0ab6a] | 476 | set_pos(&fp); |
---|
| 477 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
---|
| 478 | LONGJMP(file.jbSkipLine); |
---|
| 479 | return 0.0; /* for brain-fried compilers */ |
---|
[4ca3219] | 480 | } |
---|
[5a0ab6a] | 481 | |
---|
[eb429bf] | 482 | if (r > quad) { |
---|
[5a0ab6a] | 483 | set_pos(&fp); |
---|
[eb429bf] | 484 | compile_diagnostic_token_show(DIAG_ERR|DIAG_COL, /*Suspicious compass reading*/59); |
---|
[5a0ab6a] | 485 | LONGJMP(file.jbSkipLine); |
---|
| 486 | return 0.0; /* for brain-fried compilers */ |
---|
[4ca3219] | 487 | } |
---|
[5a0ab6a] | 488 | |
---|
| 489 | if (first_point == POINT_N) { |
---|
| 490 | if (second_point == POINT_W) { |
---|
| 491 | r = quad * 4 - r; |
---|
| 492 | } |
---|
| 493 | } else { |
---|
| 494 | if (second_point == POINT_W) { |
---|
| 495 | r += quad * 2; |
---|
| 496 | } else { |
---|
| 497 | r = quad * 2 - r; |
---|
| 498 | } |
---|
| 499 | } |
---|
| 500 | return r; |
---|
[4ca3219] | 501 | } |
---|
| 502 | |
---|
[21c226e] | 503 | extern real |
---|
[d3241e6] | 504 | read_numeric(bool f_optional) |
---|
| 505 | { |
---|
| 506 | skipblanks(); |
---|
[63d4f07] | 507 | return read_number(f_optional, false); |
---|
[d3241e6] | 508 | } |
---|
| 509 | |
---|
| 510 | extern real |
---|
[61513b57] | 511 | read_numeric_multi(bool f_optional, bool f_quadrants, int *p_n_readings) |
---|
[21c226e] | 512 | { |
---|
| 513 | size_t n_readings = 0; |
---|
| 514 | real tot = (real)0.0; |
---|
| 515 | |
---|
| 516 | skipblanks(); |
---|
| 517 | if (!isOpen(ch)) { |
---|
[4699c40] | 518 | real r = 0; |
---|
[61513b57] | 519 | if (!f_quadrants) |
---|
[63d4f07] | 520 | r = read_number(f_optional, false); |
---|
[61513b57] | 521 | else |
---|
[5a0ab6a] | 522 | r = read_quadrant(f_optional); |
---|
[21c226e] | 523 | if (p_n_readings) *p_n_readings = (r == HUGE_REAL ? 0 : 1); |
---|
| 524 | return r; |
---|
| 525 | } |
---|
| 526 | nextch(); |
---|
| 527 | |
---|
| 528 | skipblanks(); |
---|
| 529 | do { |
---|
[9d9bee9] | 530 | if (!f_quadrants) |
---|
[63d4f07] | 531 | tot += read_number(false, false); |
---|
[61513b57] | 532 | else |
---|
[63d4f07] | 533 | tot += read_quadrant(false); |
---|
[21c226e] | 534 | ++n_readings; |
---|
| 535 | skipblanks(); |
---|
| 536 | } while (!isClose(ch)); |
---|
| 537 | nextch(); |
---|
| 538 | |
---|
| 539 | if (p_n_readings) *p_n_readings = n_readings; |
---|
| 540 | /* FIXME: special averaging for bearings ... */ |
---|
| 541 | /* And for percentage gradient */ |
---|
| 542 | return tot / n_readings; |
---|
| 543 | } |
---|
| 544 | |
---|
[2aa2f3f] | 545 | /* read numeric expr or omit (return HUGE_REAL); else longjmp */ |
---|
| 546 | extern real |
---|
[00b10c1] | 547 | read_bearing_multi_or_omit(bool f_quadrants, int *p_n_readings) |
---|
[2aa2f3f] | 548 | { |
---|
[9d9bee9] | 549 | real v; |
---|
[63d4f07] | 550 | v = read_numeric_multi(true, f_quadrants, p_n_readings); |
---|
[9d9bee9] | 551 | if (v == HUGE_REAL) { |
---|
| 552 | if (!isOmit(ch)) { |
---|
| 553 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting numeric field, found “%s”*/9); |
---|
| 554 | LONGJMP(file.jbSkipLine); |
---|
| 555 | return 0.0; /* for brain-fried compilers */ |
---|
[2aa2f3f] | 556 | } |
---|
| 557 | nextch(); |
---|
| 558 | } |
---|
| 559 | return v; |
---|
| 560 | } |
---|
| 561 | |
---|
[950a829] | 562 | /* Don't skip blanks, variable error code */ |
---|
| 563 | static unsigned int |
---|
[75e67ab] | 564 | read_uint_internal(int errmsg, const filepos *fp) |
---|
[647407d] | 565 | { |
---|
[421b7d2] | 566 | unsigned int n = 0; |
---|
[647407d] | 567 | if (!isdigit(ch)) { |
---|
[029cc3f] | 568 | if (fp) set_pos(fp); |
---|
[cab0f26] | 569 | compile_diagnostic_token_show(DIAG_ERR, errmsg); |
---|
[647407d] | 570 | LONGJMP(file.jbSkipLine); |
---|
| 571 | } |
---|
| 572 | while (isdigit(ch)) { |
---|
| 573 | n = n * 10 + (char)(ch - '0'); |
---|
| 574 | nextch(); |
---|
| 575 | } |
---|
| 576 | return n; |
---|
| 577 | } |
---|
[76bb277a] | 578 | |
---|
[950a829] | 579 | extern unsigned int |
---|
| 580 | read_uint(void) |
---|
| 581 | { |
---|
| 582 | skipblanks(); |
---|
[0804fbe] | 583 | return read_uint_internal(/*Expecting numeric field, found “%s”*/9, NULL); |
---|
[950a829] | 584 | } |
---|
| 585 | |
---|
[5b9b9d4] | 586 | extern int |
---|
| 587 | read_int(int min_val, int max_val) |
---|
| 588 | { |
---|
| 589 | skipblanks(); |
---|
| 590 | unsigned n = 0; |
---|
| 591 | filepos fp; |
---|
| 592 | |
---|
| 593 | get_pos(&fp); |
---|
[1000d9d] | 594 | bool negated = isMinus(ch); |
---|
| 595 | unsigned limit; |
---|
| 596 | if (negated) { |
---|
| 597 | limit = (unsigned)(min_val == INT_MIN ? INT_MIN : -min_val); |
---|
| 598 | } else { |
---|
| 599 | limit = (unsigned)max_val; |
---|
| 600 | } |
---|
[5b9b9d4] | 601 | if (isSign(ch)) nextch(); |
---|
| 602 | |
---|
| 603 | if (!isdigit(ch)) { |
---|
| 604 | bad_value: |
---|
| 605 | set_pos(&fp); |
---|
| 606 | /* TRANSLATORS: The first %d will be replaced by the (inclusive) lower |
---|
| 607 | * bound and the second by the (inclusive) upper bound, for example: |
---|
| 608 | * Expecting integer in range -60 to 60 |
---|
| 609 | */ |
---|
| 610 | compile_diagnostic(DIAG_ERR|DIAG_NUM, /*Expecting integer in range %d to %d*/489); |
---|
| 611 | LONGJMP(file.jbSkipLine); |
---|
| 612 | } |
---|
| 613 | |
---|
| 614 | while (isdigit(ch)) { |
---|
| 615 | unsigned old_n = n; |
---|
| 616 | n = n * 10 + (char)(ch - '0'); |
---|
| 617 | if (n > limit || n < old_n) { |
---|
| 618 | goto bad_value; |
---|
| 619 | } |
---|
| 620 | nextch(); |
---|
| 621 | } |
---|
| 622 | if (isDecimal(ch)) goto bad_value; |
---|
| 623 | |
---|
| 624 | if (negated) { |
---|
| 625 | if (n > (unsigned)INT_MAX) { |
---|
| 626 | // Avoid unportable casting. |
---|
| 627 | return INT_MIN; |
---|
| 628 | } |
---|
| 629 | return -(int)n; |
---|
| 630 | } |
---|
| 631 | return (int)n; |
---|
| 632 | } |
---|
| 633 | |
---|
[76bb277a] | 634 | extern void |
---|
[0532954] | 635 | read_string(string *pstr) |
---|
[76bb277a] | 636 | { |
---|
[0532954] | 637 | s_clear(pstr); |
---|
[76bb277a] | 638 | |
---|
| 639 | skipblanks(); |
---|
| 640 | if (ch == '\"') { |
---|
[1157304] | 641 | /* String quoted in "" */ |
---|
[76bb277a] | 642 | nextch(); |
---|
[457a390] | 643 | while (1) { |
---|
| 644 | if (isEol(ch)) { |
---|
[cab0f26] | 645 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Missing \"*/69); |
---|
[4fb15a1] | 646 | LONGJMP(file.jbSkipLine); |
---|
[457a390] | 647 | } |
---|
| 648 | |
---|
| 649 | if (ch == '\"') break; |
---|
| 650 | |
---|
[0532954] | 651 | s_catchar(pstr, ch); |
---|
[457a390] | 652 | nextch(); |
---|
| 653 | } |
---|
[66f5fc4] | 654 | nextch(); |
---|
[457a390] | 655 | } else { |
---|
[1157304] | 656 | /* Unquoted string */ |
---|
[457a390] | 657 | while (1) { |
---|
| 658 | if (isEol(ch) || isComm(ch)) { |
---|
[0532954] | 659 | if (s_empty(pstr)) { |
---|
[cab0f26] | 660 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Expecting string field*/121); |
---|
[6f61f83] | 661 | LONGJMP(file.jbSkipLine); |
---|
[b97d134] | 662 | } |
---|
[457a390] | 663 | return; |
---|
[76bb277a] | 664 | } |
---|
| 665 | |
---|
[457a390] | 666 | if (isBlank(ch)) break; |
---|
[76bb277a] | 667 | |
---|
[0532954] | 668 | s_catchar(pstr, ch); |
---|
[457a390] | 669 | nextch(); |
---|
| 670 | } |
---|
[76bb277a] | 671 | } |
---|
| 672 | } |
---|
[950a829] | 673 | |
---|
| 674 | extern void |
---|
[b5a3219] | 675 | read_date(int *py, int *pm, int *pd) |
---|
[950a829] | 676 | { |
---|
[734f5f4] | 677 | unsigned int y = 0, m = 0, d = 0; |
---|
[1d74718] | 678 | filepos fp_date; |
---|
[950a829] | 679 | |
---|
| 680 | skipblanks(); |
---|
[029cc3f] | 681 | |
---|
[1d74718] | 682 | get_pos(&fp_date); |
---|
| 683 | y = read_uint_internal(/*Expecting date, found “%s”*/198, &fp_date); |
---|
[e0c7cd1] | 684 | /* Two digit year is 19xx. */ |
---|
[734f5f4] | 685 | if (y < 100) { |
---|
| 686 | filepos fp_save; |
---|
| 687 | get_pos(&fp_save); |
---|
| 688 | y += 1900; |
---|
| 689 | set_pos(&fp_date); |
---|
| 690 | /* TRANSLATORS: %d will be replaced by the assumed year, e.g. 1918 */ |
---|
| 691 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Assuming 2 digit year is %d*/76, y); |
---|
| 692 | set_pos(&fp_save); |
---|
| 693 | } |
---|
[1ee204e] | 694 | if (y < 1900 || y > 2078) { |
---|
[1d74718] | 695 | set_pos(&fp_date); |
---|
[c270761] | 696 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Invalid year (< 1900 or > 2078)*/58); |
---|
[e0c7cd1] | 697 | LONGJMP(file.jbSkipLine); |
---|
| 698 | return; /* for brain-fried compilers */ |
---|
| 699 | } |
---|
[950a829] | 700 | if (ch == '.') { |
---|
[1d74718] | 701 | filepos fp; |
---|
[950a829] | 702 | nextch(); |
---|
[1d74718] | 703 | get_pos(&fp); |
---|
| 704 | m = read_uint_internal(/*Expecting date, found “%s”*/198, &fp_date); |
---|
[e0c7cd1] | 705 | if (m < 1 || m > 12) { |
---|
[1d74718] | 706 | set_pos(&fp); |
---|
[c270761] | 707 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Invalid month*/86); |
---|
[e0c7cd1] | 708 | LONGJMP(file.jbSkipLine); |
---|
| 709 | return; /* for brain-fried compilers */ |
---|
[79d84d9] | 710 | } |
---|
[950a829] | 711 | if (ch == '.') { |
---|
| 712 | nextch(); |
---|
[1d74718] | 713 | get_pos(&fp); |
---|
| 714 | d = read_uint_internal(/*Expecting date, found “%s”*/198, &fp_date); |
---|
[e0c7cd1] | 715 | if (d < 1 || d > last_day(y, m)) { |
---|
[1d74718] | 716 | set_pos(&fp); |
---|
[736f7df] | 717 | /* TRANSLATORS: e.g. 31st of April, or 32nd of any month */ |
---|
[c270761] | 718 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Invalid day of the month*/87); |
---|
[e0c7cd1] | 719 | LONGJMP(file.jbSkipLine); |
---|
| 720 | return; /* for brain-fried compilers */ |
---|
| 721 | } |
---|
[950a829] | 722 | } |
---|
| 723 | } |
---|
[b5a3219] | 724 | if (py) *py = y; |
---|
| 725 | if (pm) *pm = m; |
---|
| 726 | if (pd) *pd = d; |
---|
[950a829] | 727 | } |
---|