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annotate tests/agcl/contrib/good/parse.h @ 11:3aa0f5a02342

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Remove unused variable; fix what it was supposed to be doing. (and document it a bit for the next time through here)
author David A. Holland
date Tue, 31 May 2022 00:54:12 -0400
parents 13d2b8934445
children
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1 #ifndef PARSE_H
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2 #define PARSE_H
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3
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4 typedef union {
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5 long alignment;
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6 char ag_vt_2[sizeof(int)];
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7 char ag_vt_4[sizeof(struct LocaleNode *)];
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8 char ag_vt_5[sizeof(unsigned)];
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9 char ag_vt_6[sizeof(Object *)];
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10 char ag_vt_7[sizeof(struct String *)];
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11 } parse_vs_type;
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12
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13 typedef enum {
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14 parse_WhiteSpace_token = 1, parse_StringBody_token = 3,
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15 parse_LineParse_token, parse_Terminated_Line_token, parse_Line_token = 8,
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16 parse_VariableList_token = 12, parse_Group_token = 14,
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17 parse_VariableDecl_token = 17, parse_Comparison_token = 19,
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18 parse_Comparisons_token, parse_VariableListWork_token = 22,
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19 parse_VariListMemb_token, parse_VariNum_token = 27,
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20 parse_Assignment_token, parse_Expression_token = 32,
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21 parse_FunctionCall_token, parse_ArgumentList_token, parse_Product_token,
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22 parse_PowerFactor_token = 38, parse_Factor_token = 40,
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23 parse_ALNUM_token = 43, parse_WS_token, parse_WSDISREGARD_token,
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24 parse_ANYTHING_token = 47, parse_VariNumStr_token = 58
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25 } parse_token_type;
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26
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27 typedef struct parse_pcb_struct{
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28 parse_token_type token_number, reduction_token, error_frame_token;
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29 int input_code;
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30 int input_value;
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31 int line, column;
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32 int ssx, sn, error_frame_ssx;
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33 int drt, dssx, dsn;
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34 int ss[1000];
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35 parse_vs_type vs[1000];
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36 int ag_ap;
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37 const char *error_message;
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38 char read_flag;
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39 char exit_flag;
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40 int bts[1000], btsx;
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41 int lab[7], rx, fx;
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42 const unsigned char *key_sp;
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43 int save_index, key_state;
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44 char ag_msg[82];
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45 } parse_pcb_type;
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46
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47 #ifndef PRULE_CONTEXT
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48 #define PRULE_CONTEXT(pcb) (&((pcb).cs[(pcb).ssx]))
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49 #define PERROR_CONTEXT(pcb) ((pcb).cs[(pcb).error_frame_ssx])
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50 #define PCONTEXT(pcb) ((pcb).cs[(pcb).ssx])
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51 #endif
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52
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53 #ifndef AG_RUNNING_CODE
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54 /* PCB.exit_flag values */
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55 #define AG_RUNNING_CODE 0
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56 #define AG_SUCCESS_CODE 1
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57 #define AG_SYNTAX_ERROR_CODE 2
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58 #define AG_REDUCTION_ERROR_CODE 3
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59 #define AG_STACK_ERROR_CODE 4
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60 #define AG_SEMANTIC_ERROR_CODE 5
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61 #endif
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62
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63 extern parse_pcb_type parse_pcb;
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64 void init_parse(void);
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65 void parse(void);
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66 #endif
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67