1 | /* readval.c |
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2 | * Routines to read a prefix or number from the current input file |
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3 | * Copyright (C) 1991-2024 Olly Betts |
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4 | * |
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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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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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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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14 | * |
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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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17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 | */ |
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19 | |
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20 | #ifdef HAVE_CONFIG_H |
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21 | # include <config.h> |
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22 | #endif |
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23 | |
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24 | #include <limits.h> |
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25 | #include <stddef.h> /* for offsetof */ |
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26 | |
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27 | #include "cavern.h" |
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28 | #include "commands.h" /* For match_tok(), etc */ |
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29 | #include "date.h" |
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30 | #include "debug.h" |
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31 | #include "filename.h" |
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32 | #include "message.h" |
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33 | #include "readval.h" |
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34 | #include "datain.h" |
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35 | #include "netbits.h" |
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36 | #include "osalloc.h" |
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37 | #include "str.h" |
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38 | |
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39 | #ifdef HAVE_SETJMP_H |
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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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45 | int root_depr_count = 0; |
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46 | |
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47 | static prefix * |
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48 | new_anon_station(void) |
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49 | { |
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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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59 | name->min_export = name->max_export = 0; |
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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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65 | } |
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66 | |
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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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70 | { |
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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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74 | prefix *back_ptr, *ptr; |
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75 | char *name; |
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76 | size_t name_len = 32; |
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77 | size_t i; |
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78 | bool fNew; |
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79 | bool fImplicitPrefix = true; |
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80 | int depth = -1; |
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81 | filepos fp_firstsep; |
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82 | |
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83 | skipblanks(); |
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84 | #ifndef NO_DEPRECATED |
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85 | if (isRoot(ch)) { |
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86 | if (!(pfx_flags & PFX_ALLOW_ROOT)) { |
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87 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*ROOT is deprecated*/25); |
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88 | LONGJMP(file.jbSkipLine); |
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89 | } |
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90 | if (root_depr_count < 5) { |
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91 | compile_diagnostic(DIAG_WARN|DIAG_COL, /*ROOT is deprecated*/25); |
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92 | if (++root_depr_count == 5) |
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93 | compile_diagnostic(DIAG_WARN, /*Further uses of this deprecated feature will not be reported*/95); |
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94 | } |
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95 | nextch(); |
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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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99 | /* Allow optional SEPARATOR after ROOT */ |
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100 | get_pos(&fp_firstsep); |
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101 | nextch(); |
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102 | } |
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103 | fImplicitPrefix = false; |
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104 | #else |
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105 | if (0) { |
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106 | #endif |
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107 | } else { |
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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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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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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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122 | set_pos(&here); |
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123 | compile_diagnostic(DIAG_ERR|DIAG_WORD, /*Can't have a leg between two anonymous stations*/3); |
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124 | LONGJMP(file.jbSkipLine); |
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125 | } |
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126 | pcs->flags |= BIT(FLAGS_ANON_ONE_END) | BIT(FLAGS_IMPLICIT_SPLAY); |
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127 | return new_anon_station(); |
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128 | } |
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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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138 | set_pos(&here); |
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139 | compile_diagnostic(DIAG_ERR|DIAG_WORD, /*Can't have a leg between two anonymous stations*/3); |
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140 | LONGJMP(file.jbSkipLine); |
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141 | } |
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142 | pcs->flags |= BIT(FLAGS_ANON_ONE_END) | BIT(FLAGS_IMPLICIT_SPLAY); |
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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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156 | set_pos(&here); |
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157 | compile_diagnostic(DIAG_ERR|DIAG_WORD, /*Can't have a leg between two anonymous stations*/3); |
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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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165 | set_pos(&here); |
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166 | } |
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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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171 | name = NULL; |
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172 | do { |
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173 | fNew = false; |
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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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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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186 | name[i++] = (pcs->Case == LOWER ? tolower(ch) : |
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187 | (pcs->Case == OFF ? ch : toupper(ch))); |
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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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192 | } |
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193 | nextch(); |
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194 | } |
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195 | if (isSep(ch)) { |
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196 | fImplicitPrefix = false; |
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197 | get_pos(&fp_firstsep); |
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198 | } |
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199 | if (i == 0) { |
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200 | osfree(name); |
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201 | if (!f_optional) { |
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202 | if (isEol(ch)) { |
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203 | if (fSurvey) { |
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204 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Expecting survey name*/89); |
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205 | } else { |
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206 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Expecting station name*/28); |
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207 | } |
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208 | } else { |
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209 | /* TRANSLATORS: Here "station" is a survey station, not a train station. */ |
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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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211 | } |
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212 | LONGJMP(file.jbSkipLine); |
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213 | } |
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214 | return (prefix *)NULL; |
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215 | } |
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216 | |
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217 | name[i++] = '\0'; |
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218 | |
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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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223 | name = osrealloc(name, i); |
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224 | ptr = osnew(prefix); |
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225 | ptr->ident = name; |
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226 | name = NULL; |
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227 | ptr->right = ptr->down = NULL; |
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228 | ptr->pos = NULL; |
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229 | ptr->shape = 0; |
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230 | ptr->stn = NULL; |
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231 | ptr->up = back_ptr; |
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232 | ptr->filename = file.filename; |
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233 | ptr->line = file.line; |
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234 | ptr->min_export = ptr->max_export = 0; |
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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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238 | back_ptr->down = ptr; |
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239 | fNew = true; |
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240 | } else { |
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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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244 | prefix *ptrPrev = NULL; |
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245 | int cmp = 1; /* result of strcmp ( -ve for <, 0 for =, +ve for > ) */ |
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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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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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256 | prefix *newptr; |
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257 | name = osrealloc(name, i); |
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258 | newptr = osnew(prefix); |
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259 | newptr->ident = name; |
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260 | name = NULL; |
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261 | if (ptrPrev == NULL) |
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262 | back_ptr->down = newptr; |
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263 | else |
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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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268 | newptr->shape = 0; |
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269 | newptr->stn = NULL; |
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270 | newptr->up = back_ptr; |
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271 | newptr->filename = file.filename; |
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272 | newptr->line = file.line; |
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273 | newptr->min_export = newptr->max_export = 0; |
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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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277 | ptr = newptr; |
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278 | fNew = true; |
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279 | } |
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280 | cached_survey = back_ptr; |
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281 | cached_station = ptr; |
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282 | } |
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283 | depth++; |
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284 | f_optional = false; /* disallow after first level */ |
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285 | if (isSep(ch)) get_pos(&fp_firstsep); |
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286 | } while (isSep(ch)); |
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287 | if (name) osfree(name); |
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288 | |
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289 | /* don't warn about a station that is referred to twice */ |
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290 | if (!fNew) ptr->sflags &= ~BIT(SFLAGS_SUSPECTTYPO); |
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291 | |
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292 | if (fNew) { |
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293 | /* fNew means SFLAGS_SURVEY is currently set */ |
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294 | SVX_ASSERT(TSTBIT(ptr->sflags, SFLAGS_SURVEY)); |
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295 | if (!fSurvey) { |
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296 | ptr->sflags &= ~BIT(SFLAGS_SURVEY); |
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297 | if (TSTBIT(pcs->infer, INFER_EXPORTS)) ptr->min_export = USHRT_MAX; |
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298 | } |
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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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301 | if (fSurvey ^ TSTBIT(ptr->sflags, SFLAGS_SURVEY)) { |
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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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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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309 | } |
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310 | if (!fSurvey && TSTBIT(pcs->infer, INFER_EXPORTS)) ptr->min_export = USHRT_MAX; |
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311 | } |
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312 | |
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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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318 | if (ptr->min_export == 0 || ptr->min_export == USHRT_MAX) { |
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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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321 | prefix *survey = ptr; |
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322 | char *s; |
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323 | const char *p; |
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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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327 | SVX_ASSERT(survey); |
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328 | } |
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329 | s = osstrdup(sprint_prefix(survey)); |
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330 | p = sprint_prefix(ptr); |
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331 | if (survey->filename) { |
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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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335 | } else { |
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336 | compile_diagnostic(DIAG_ERR, /*Station “%s” not exported from survey “%s”*/26, p, s); |
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337 | } |
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338 | osfree(s); |
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339 | #if 0 |
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340 | printf(" *** pfx %s warning not exported enough depth %d " |
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341 | "ptr->max_export %d\n", sprint_prefix(ptr), |
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342 | depth, ptr->max_export); |
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343 | #endif |
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344 | } |
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345 | if (!fImplicitPrefix && (pfx_flags & PFX_WARN_SEPARATOR)) { |
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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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351 | } |
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352 | return ptr; |
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353 | } |
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354 | |
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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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357 | read_number(bool f_optional, bool f_unsigned) |
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358 | { |
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359 | bool fPositive = true, fDigits = false; |
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360 | real n = (real)0.0; |
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361 | filepos fp; |
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362 | int ch_old; |
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363 | |
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364 | get_pos(&fp); |
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365 | ch_old = ch; |
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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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370 | |
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371 | while (isdigit(ch)) { |
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372 | n = n * (real)10.0 + (char)(ch - '0'); |
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373 | nextch(); |
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374 | fDigits = true; |
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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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383 | fDigits = true; |
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384 | nextch(); |
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385 | } |
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386 | } |
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387 | |
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388 | /* !'fRead' => !fDigits so fDigits => 'fRead' */ |
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389 | if (fDigits) return (fPositive ? n : -n); |
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390 | |
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391 | /* didn't read a valid number. If it's optional, reset filepos & return */ |
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392 | set_pos(&fp); |
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393 | if (f_optional) { |
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394 | return HUGE_REAL; |
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395 | } |
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396 | |
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397 | if (isOmit(ch_old)) { |
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398 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Field may not be omitted*/8); |
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399 | } else { |
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400 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting numeric field, found “%s”*/9); |
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401 | } |
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402 | LONGJMP(file.jbSkipLine); |
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403 | return 0.0; /* for brain-fried compilers */ |
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404 | } |
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405 | |
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406 | static real |
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407 | read_quadrant(bool f_optional) |
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408 | { |
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409 | enum { |
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410 | POINT_N = 0, |
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411 | POINT_E = 1, |
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412 | POINT_S = 2, |
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413 | POINT_W = 3, |
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414 | POINT_NONE = -1 |
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415 | }; |
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416 | static const sztok pointtab[] = { |
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417 | {"E", POINT_E }, |
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418 | {"N", POINT_N }, |
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419 | {"S", POINT_S }, |
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420 | {"W", POINT_W }, |
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421 | {NULL, POINT_NONE } |
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422 | }; |
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423 | static const sztok pointewtab[] = { |
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424 | {"E", POINT_E }, |
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425 | {"W", POINT_W }, |
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426 | {NULL, POINT_NONE } |
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427 | }; |
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428 | if (f_optional && isOmit(ch)) { |
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429 | return HUGE_REAL; |
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430 | } |
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431 | const int quad = 90; |
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432 | filepos fp; |
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433 | get_pos(&fp); |
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434 | get_token_no_blanks(); |
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435 | int first_point = match_tok(pointtab, TABSIZE(pointtab)); |
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436 | if (first_point == POINT_NONE) { |
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437 | set_pos(&fp); |
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438 | if (isOmit(ch)) { |
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439 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Field may not be omitted*/8); |
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440 | } |
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441 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
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442 | LONGJMP(file.jbSkipLine); |
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443 | return 0.0; /* for brain-fried compilers */ |
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444 | } |
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445 | real r = read_number(true, true); |
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446 | if (r == HUGE_REAL) { |
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447 | if (isSign(ch) || isDecimal(ch)) { |
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448 | /* Give better errors for S-0E, N+10W, N.E, etc. */ |
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449 | set_pos(&fp); |
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450 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
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451 | LONGJMP(file.jbSkipLine); |
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452 | return 0.0; /* for brain-fried compilers */ |
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453 | } |
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454 | /* N, S, E or W. */ |
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455 | return first_point * quad; |
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456 | } |
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457 | if (first_point == POINT_E || first_point == POINT_W) { |
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458 | set_pos(&fp); |
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459 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
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460 | LONGJMP(file.jbSkipLine); |
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461 | return 0.0; /* for brain-fried compilers */ |
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462 | } |
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463 | |
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464 | get_token_no_blanks(); |
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465 | int second_point = match_tok(pointewtab, TABSIZE(pointewtab)); |
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466 | if (second_point == POINT_NONE) { |
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467 | set_pos(&fp); |
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468 | compile_diagnostic_token_show(DIAG_ERR, /*Expecting quadrant bearing, found “%s”*/483); |
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469 | LONGJMP(file.jbSkipLine); |
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470 | return 0.0; /* for brain-fried compilers */ |
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471 | } |
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472 | |
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473 | if (r > quad) { |
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474 | set_pos(&fp); |
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475 | compile_diagnostic_token_show(DIAG_ERR|DIAG_COL, /*Suspicious compass reading*/59); |
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476 | LONGJMP(file.jbSkipLine); |
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477 | return 0.0; /* for brain-fried compilers */ |
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478 | } |
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479 | |
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480 | if (first_point == POINT_N) { |
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481 | if (second_point == POINT_W) { |
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482 | r = quad * 4 - r; |
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483 | } |
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484 | } else { |
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485 | if (second_point == POINT_W) { |
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486 | r += quad * 2; |
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487 | } else { |
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488 | r = quad * 2 - r; |
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489 | } |
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490 | } |
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491 | return r; |
---|
492 | } |
---|
493 | |
---|
494 | extern real |
---|
495 | read_numeric(bool f_optional) |
---|
496 | { |
---|
497 | skipblanks(); |
---|
498 | return read_number(f_optional, false); |
---|
499 | } |
---|
500 | |
---|
501 | extern real |
---|
502 | read_numeric_multi(bool f_optional, bool f_quadrants, int *p_n_readings) |
---|
503 | { |
---|
504 | size_t n_readings = 0; |
---|
505 | real tot = (real)0.0; |
---|
506 | |
---|
507 | skipblanks(); |
---|
508 | if (!isOpen(ch)) { |
---|
509 | real r = 0; |
---|
510 | if (!f_quadrants) |
---|
511 | r = read_number(f_optional, false); |
---|
512 | else |
---|
513 | r = read_quadrant(f_optional); |
---|
514 | if (p_n_readings) *p_n_readings = (r == HUGE_REAL ? 0 : 1); |
---|
515 | return r; |
---|
516 | } |
---|
517 | nextch(); |
---|
518 | |
---|
519 | skipblanks(); |
---|
520 | do { |
---|
521 | if (!f_quadrants) |
---|
522 | tot += read_number(false, false); |
---|
523 | else |
---|
524 | tot += read_quadrant(false); |
---|
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 | |
---|
536 | /* read numeric expr or omit (return HUGE_REAL); else longjmp */ |
---|
537 | extern real |
---|
538 | read_bearing_multi_or_omit(bool f_quadrants, int *p_n_readings) |
---|
539 | { |
---|
540 | real v; |
---|
541 | v = read_numeric_multi(true, f_quadrants, p_n_readings); |
---|
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 */ |
---|
547 | } |
---|
548 | nextch(); |
---|
549 | } |
---|
550 | return v; |
---|
551 | } |
---|
552 | |
---|
553 | /* Don't skip blanks, variable error code */ |
---|
554 | static unsigned int |
---|
555 | read_uint_internal(int errmsg, const filepos *fp) |
---|
556 | { |
---|
557 | unsigned int n = 0; |
---|
558 | if (!isdigit(ch)) { |
---|
559 | if (fp) set_pos(fp); |
---|
560 | compile_diagnostic_token_show(DIAG_ERR, errmsg); |
---|
561 | LONGJMP(file.jbSkipLine); |
---|
562 | } |
---|
563 | while (isdigit(ch)) { |
---|
564 | n = n * 10 + (char)(ch - '0'); |
---|
565 | nextch(); |
---|
566 | } |
---|
567 | return n; |
---|
568 | } |
---|
569 | |
---|
570 | extern unsigned int |
---|
571 | read_uint(void) |
---|
572 | { |
---|
573 | skipblanks(); |
---|
574 | return read_uint_internal(/*Expecting numeric field, found “%s”*/9, NULL); |
---|
575 | } |
---|
576 | |
---|
577 | extern int |
---|
578 | read_int(int min_val, int max_val) |
---|
579 | { |
---|
580 | bool negated = false; |
---|
581 | skipblanks(); |
---|
582 | unsigned n = 0; |
---|
583 | filepos fp; |
---|
584 | |
---|
585 | get_pos(&fp); |
---|
586 | negated = isMinus(ch); |
---|
587 | unsigned limit = negated ? -(unsigned)min_val : (unsigned)max_val; |
---|
588 | if (isSign(ch)) nextch(); |
---|
589 | |
---|
590 | if (!isdigit(ch)) { |
---|
591 | bad_value: |
---|
592 | set_pos(&fp); |
---|
593 | /* TRANSLATORS: The first %d will be replaced by the (inclusive) lower |
---|
594 | * bound and the second by the (inclusive) upper bound, for example: |
---|
595 | * Expecting integer in range -60 to 60 |
---|
596 | */ |
---|
597 | compile_diagnostic(DIAG_ERR|DIAG_NUM, /*Expecting integer in range %d to %d*/489); |
---|
598 | LONGJMP(file.jbSkipLine); |
---|
599 | } |
---|
600 | |
---|
601 | while (isdigit(ch)) { |
---|
602 | unsigned old_n = n; |
---|
603 | n = n * 10 + (char)(ch - '0'); |
---|
604 | if (n > limit || n < old_n) { |
---|
605 | goto bad_value; |
---|
606 | } |
---|
607 | nextch(); |
---|
608 | } |
---|
609 | if (isDecimal(ch)) goto bad_value; |
---|
610 | |
---|
611 | if (negated) { |
---|
612 | if (n > (unsigned)INT_MAX) { |
---|
613 | // Avoid unportable casting. |
---|
614 | return INT_MIN; |
---|
615 | } |
---|
616 | return -(int)n; |
---|
617 | } |
---|
618 | return (int)n; |
---|
619 | } |
---|
620 | |
---|
621 | extern void |
---|
622 | read_string(string *pstr) |
---|
623 | { |
---|
624 | s_clear(pstr); |
---|
625 | |
---|
626 | skipblanks(); |
---|
627 | if (ch == '\"') { |
---|
628 | /* String quoted in "" */ |
---|
629 | nextch(); |
---|
630 | while (1) { |
---|
631 | if (isEol(ch)) { |
---|
632 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Missing \"*/69); |
---|
633 | LONGJMP(file.jbSkipLine); |
---|
634 | } |
---|
635 | |
---|
636 | if (ch == '\"') break; |
---|
637 | |
---|
638 | s_catchar(pstr, ch); |
---|
639 | nextch(); |
---|
640 | } |
---|
641 | nextch(); |
---|
642 | } else { |
---|
643 | /* Unquoted string */ |
---|
644 | while (1) { |
---|
645 | if (isEol(ch) || isComm(ch)) { |
---|
646 | if (s_empty(pstr)) { |
---|
647 | compile_diagnostic(DIAG_ERR|DIAG_COL, /*Expecting string field*/121); |
---|
648 | LONGJMP(file.jbSkipLine); |
---|
649 | } |
---|
650 | return; |
---|
651 | } |
---|
652 | |
---|
653 | if (isBlank(ch)) break; |
---|
654 | |
---|
655 | s_catchar(pstr, ch); |
---|
656 | nextch(); |
---|
657 | } |
---|
658 | } |
---|
659 | } |
---|
660 | |
---|
661 | extern void |
---|
662 | read_date(int *py, int *pm, int *pd) |
---|
663 | { |
---|
664 | unsigned int y = 0, m = 0, d = 0; |
---|
665 | filepos fp_date; |
---|
666 | |
---|
667 | skipblanks(); |
---|
668 | |
---|
669 | get_pos(&fp_date); |
---|
670 | y = read_uint_internal(/*Expecting date, found “%s”*/198, &fp_date); |
---|
671 | /* Two digit year is 19xx. */ |
---|
672 | if (y < 100) { |
---|
673 | filepos fp_save; |
---|
674 | get_pos(&fp_save); |
---|
675 | y += 1900; |
---|
676 | set_pos(&fp_date); |
---|
677 | /* TRANSLATORS: %d will be replaced by the assumed year, e.g. 1918 */ |
---|
678 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Assuming 2 digit year is %d*/76, y); |
---|
679 | set_pos(&fp_save); |
---|
680 | } |
---|
681 | if (y < 1900 || y > 2078) { |
---|
682 | set_pos(&fp_date); |
---|
683 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Invalid year (< 1900 or > 2078)*/58); |
---|
684 | LONGJMP(file.jbSkipLine); |
---|
685 | return; /* for brain-fried compilers */ |
---|
686 | } |
---|
687 | if (ch == '.') { |
---|
688 | filepos fp; |
---|
689 | nextch(); |
---|
690 | get_pos(&fp); |
---|
691 | m = read_uint_internal(/*Expecting date, found “%s”*/198, &fp_date); |
---|
692 | if (m < 1 || m > 12) { |
---|
693 | set_pos(&fp); |
---|
694 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Invalid month*/86); |
---|
695 | LONGJMP(file.jbSkipLine); |
---|
696 | return; /* for brain-fried compilers */ |
---|
697 | } |
---|
698 | if (ch == '.') { |
---|
699 | nextch(); |
---|
700 | get_pos(&fp); |
---|
701 | d = read_uint_internal(/*Expecting date, found “%s”*/198, &fp_date); |
---|
702 | if (d < 1 || d > last_day(y, m)) { |
---|
703 | set_pos(&fp); |
---|
704 | /* TRANSLATORS: e.g. 31st of April, or 32nd of any month */ |
---|
705 | compile_diagnostic(DIAG_WARN|DIAG_UINT, /*Invalid day of the month*/87); |
---|
706 | LONGJMP(file.jbSkipLine); |
---|
707 | return; /* for brain-fried compilers */ |
---|
708 | } |
---|
709 | } |
---|
710 | } |
---|
711 | if (py) *py = y; |
---|
712 | if (pm) *pm = m; |
---|
713 | if (pd) *pd = d; |
---|
714 | } |
---|