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annotate anagram/guisupport/symtabdc.cpp @ 18:562c313f14f4

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some minor updates for 2022
author David A. Holland
date Tue, 31 May 2022 02:03:50 -0400
parents 13d2b8934445
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1 /*
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2 * AnaGram, A System for Syntax Directed Programming
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3 * Copyright 1993-2002 Parsifal Software. All Rights Reserved.
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4 * See the file COPYING for license and usage terms.
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5 *
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6 * symtabdc.cpp
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7 */
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8
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9 #include "csexp.h"
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10 #include "dc.h"
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11 #include "items.h"
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12 #include "stacks.h"
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13 #include "symbol.h"
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14 #include "symtabdc.h"
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15 #include "token.h"
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16 #include "tree.h"
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17 #include "ut.h"
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18 #include "ws.h"
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19
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20 //#define INCLUDE_LOGGING
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21 #include "log.h"
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22
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23
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24 static int symbol_table_tabs[] = {6,0};
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25
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26 symbol_table_dc::symbol_table_dc(void)
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27 : dc("Symbol Table")
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28 {
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29 LOGSECTION("symbol_table_dc::symbol_table_dc");
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30 des->d_size.y = Symbol::count() - 1;
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31 LOGV(Symbol::count());
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32
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33 tab_stops = symbol_table_tabs;
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34 columnHeadTitle = "Token\tSymbol";
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35 }
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36
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37 void symbol_table_dc::getLine(unsigned n) const {
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38 LOGSECTION("symbol_table_dc::getLine");
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39 LOGV(n) LCV(Symbol::count());
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40 int vptn;
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41
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42 Symbol symbol = Symbol::sorted(n + 1);
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43 LOGV(symbol) LCV(symbol->string.pointer());
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44 ics();
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45 Token token = symbol->token_number;
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46 LOGV(token);
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47 if (token.isNotNull()) {
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48 apprintf("T%03d", (int) token);
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49 }
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50 acs('\t');
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51 ass(symbol->string.pointer());
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52 ParseTree parseTree = symbol->parse_tree;
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53 LOGV(parseTree);
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54 if (parseTree.isNotNull()) {
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55 ass( " = ");
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56 ass(parseTree->expression->asString().pointer());
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57 return;
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58 }
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59 LOGV(token->vp_prod_number);
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60 if (token.isNotNull() && (vptn = token->vp_prod_number) != 0) {
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61 ass( " = ");
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62 avptkn(vptn);
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63 return;
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64 }
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65 }
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66
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67 unsigned symbol_table_dc::token(unsigned ln) {
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68 Symbol symbol = Symbol::sorted(ln + 1);
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69 return symbol->token_number;
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70 }
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71
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72 int symbol_table_dc::expansion_rules_ok(unsigned ln) {
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73 return build_item_list_ok(token(ln));
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74 }
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75
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76 dc_ref symbol_table_dc::expansion_rules(unsigned ln) {
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77 return build_item_list(token(ln));
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78 }
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79
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80 int symbol_table_dc::productions_ok(unsigned ln) {
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81 return productions_window_ok(token(ln));
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82 }
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83
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84 dc_ref symbol_table_dc::productions(unsigned ln) {
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85 return productions_window(token(ln));
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86 }
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87
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88 int symbol_table_dc::set_elements_ok(unsigned ln) {
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89 Symbol symbol = Symbol::sorted(ln + 1);
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90 int pt = symbol->parse_tree;
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91
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92 if (pt) {
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93 return char_set_window_ok(map_parse_tree[pt].char_set);
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94 }
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95 return token_set_window_ok(symbol->token_number);
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96 }
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97
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98 dc_ref symbol_table_dc::set_elements(unsigned ln) {
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99 Symbol symbol = Symbol::sorted(ln + 1);
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100 int pt = symbol->parse_tree;
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101
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102 if (pt) {
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103 return char_set_window(map_parse_tree[pt].char_set);
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104 }
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105 return token_set_window(symbol->token_number);
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106 }
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107
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108 int symbol_table_dc::usage_ok(unsigned ln) {
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109 return token_usage_window_ok(token(ln));
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110 }
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111
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112 dc_ref symbol_table_dc::usage(unsigned ln) {
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113 return token_usage_window(token(ln));
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114 }