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author William Astle <lost@l-w.ca>
date Thu, 08 Aug 2024 13:46:19 -0600
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1 /*
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2 lwcc/token.h
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3
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4 Copyright © 2013 William Astle
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5
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6 This file is part of LWTOOLS.
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7
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8 LWTOOLS is free software: you can redistribute it and/or modify it under the
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9 terms of the GNU General Public License as published by the Free Software
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10 Foundation, either version 3 of the License, or (at your option) any later
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11 version.
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12
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13 This program is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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16 more details.
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17
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18 You should have received a copy of the GNU General Public License along with
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19 this program. If not, see <http://www.gnu.org/licenses/>.
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20 */
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21
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22 #ifndef token_h_seen___
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23 #define token_h_seen___
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24
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25 #include <stdio.h>
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26
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27 enum
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28 {
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29 CPP_NOUNG = -3,
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30 CPP_EOL = -2,
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31 CPP_EOF = -1,
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32 };
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33
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34 #define TOK_NONE 0
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35 #define TOK_EOF 1
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36 #define TOK_EOL 2
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37 #define TOK_WSPACE 3
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38 #define TOK_IDENT 4
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39 #define TOK_NUMBER 5
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40 #define TOK_CHAR 6
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41 #define TOK_ADD 8
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42 #define TOK_SUB 9
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43 #define TOK_OPAREN 10
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44 #define TOK_CPAREN 11
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45 #define TOK_NE 12
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46 #define TOK_EQ 13
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47 #define TOK_LE 14
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48 #define TOK_LT 15
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49 #define TOK_GE 16
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50 #define TOK_GT 17
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51 #define TOK_BAND 18
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52 #define TOK_BOR 19
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53 #define TOK_BNOT 20
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54 #define TOK_MOD 21
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55 #define TOK_COMMA 22
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56 #define TOK_ELLIPSIS 23
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57 #define TOK_QMARK 24
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58 #define TOK_COLON 25
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59 #define TOK_OBRACE 26
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60 #define TOK_CBRACE 27
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61 #define TOK_OSQUARE 28
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62 #define TOK_CSQUARE 29
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63 #define TOK_COM 30
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64 #define TOK_EOS 31
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65 #define TOK_HASH 32
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66 #define TOK_DBLHASH 33
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67 #define TOK_XOR 34
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68 #define TOK_XORASS 35
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69 #define TOK_STAR 36
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70 #define TOK_MULASS 37
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71 #define TOK_DIV 38
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72 #define TOK_DIVASS 39
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73 #define TOK_ASS 40
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74 #define TOK_MODASS 41
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75 #define TOK_SUBASS 42
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76 #define TOK_DBLSUB 43
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77 #define TOK_ADDASS 44
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78 #define TOK_DBLADD 45
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79 #define TOK_BWAND 46
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80 #define TOK_BWANDASS 47
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81 #define TOK_BWOR 48
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82 #define TOK_BWORASS 49
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83 #define TOK_LSH 50
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84 #define TOK_LSHASS 51
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85 #define TOK_RSH 52
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86 #define TOK_RSHASS 53
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87 #define TOK_DOT 54
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88 #define TOK_CHR_LIT 55
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89 #define TOK_STR_LIT 56
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90 #define TOK_ARROW 57
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91 #define TOK_ENDEXPAND 58
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92 #define TOK_ERROR 59
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93 #define TOK_MAX 60
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94
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95 struct token
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96 {
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97 int ttype; // token type
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98 char *strval; // the token value if relevant
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99 struct token *prev; // previous token in a list
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100 struct token *next; // next token in a list
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101 struct token_list *list;// pointer to head of list descriptor this token is on
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102 int lineno; // line number token came from
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103 int column; // character column token came from
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104 const char *fn; // file name token came from
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105 };
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106
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107 struct token_list
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108 {
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109 struct token *head; // the head of the list
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110 struct token *tail; // the tail of the list
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111 };
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112
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113 extern void token_free(struct token *);
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114 extern struct token *token_create(int, char *strval, int, int, const char *);
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115 extern struct token *token_dup(struct token *);
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116 /* add a token to the end of a list */
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117 extern void token_list_append(struct token_list *, struct token *);
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118 /* add a token to the start of a list */
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119 extern void token_list_prepend(struct token_list *, struct token *);
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120 /* remove individual token from whatever list it is on */
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121 extern void token_list_remove(struct token *);
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122 /* replace token with list of tokens specified */
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123 extern void token_list_insert(struct token_list *, struct token *, struct token *);
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124 /* duplicate a list to a new list pointer */
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125 extern struct token_list *token_list_dup(struct token_list *);
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126 /* print a token out */
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127 extern struct token_list *token_list_create(void);
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128 extern void token_list_destroy(struct token_list *);
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129
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130 extern void token_print(struct token *, FILE *);
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131
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132 #endif // token_h_seen___