YACDB
Yet Another C(rappy) Database
instruction.h
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1
7#ifndef INSTRUCTION_H
8#define INSTRUCTION_H
9
10#define IDENT_MAX_LEGHT 20
11#define COLUMNS_MAX_NB 10
12
13typedef enum dataType
14{
15 integer,
16 string,
17 unknownDataType
18} dataType;
19
24typedef enum instrType
25{
27 sel,
29 upd,
31 del,
33 add,
35 crt,
37 drop,
39 unknownInstrType
40} instrType;
41
42
47typedef struct charray
48{
50 char **arr;
52 int size;
53} charray;
58struct condition
59{
61 char *col;
63 char *val;
64};
65
66
68typedef struct instr
69{
70 instrType type;
71} instr;
72
77struct SelInstr
78{
80 instrType type;
82 char *table;
84 charray *columns;
86 int has_cond;
88 struct condition *cond;
89};
90
95struct CrtInstr
96{
98 instrType type;
100 char *table;
102 charray *columns;
104 charray *types;
105};
106
111struct AddInstr
112{
114 instrType type;
116 char *table;
118 charray *columns;
120 charray *values;
121};
122
127typedef struct InstrArray
128{
129 // The array
130 instr **arr;
131 // The size of the array
132 int size;
133} InstrArray;
134
135#endif
instrType
instrType
The different instruction types, such as select or add.
Definition: instruction.h:25
crt
@ crt
Create, for table creation.
Definition: instruction.h:35
sel
@ sel
Select, same as SELECT in sql.
Definition: instruction.h:27
drop
@ drop
Drop (not implemented)
Definition: instruction.h:37
add
@ add
Add, for data insertion.
Definition: instruction.h:33
del
@ del
Delete (not implemented)
Definition: instruction.h:31
upd
@ upd
Update (not implemented)
Definition: instruction.h:29
unknownInstrType
@ unknownInstrType
Unknown, when there is a parsing error.
Definition: instruction.h:39
instr
struct instr instr
One yacDB instruction, this type is meant to be casted into other instr type.
charray
struct charray charray
An array of char* (string)
InstrArray
struct InstrArray InstrArray
An array of instruction.
AddInstr
Add instruction.
Definition: instruction.h:112
AddInstr::table
char * table
Table name.
Definition: instruction.h:116
AddInstr::values
charray * values
Columns values.
Definition: instruction.h:120
AddInstr::type
instrType type
Always "add".
Definition: instruction.h:114
AddInstr::columns
charray * columns
Columns name.
Definition: instruction.h:118
CrtInstr
Create instruction.
Definition: instruction.h:96
CrtInstr::types
charray * types
Columns type (useless)
Definition: instruction.h:104
CrtInstr::table
char * table
Table name.
Definition: instruction.h:100
CrtInstr::columns
charray * columns
Columns name.
Definition: instruction.h:102
CrtInstr::type
instrType type
Always "crt".
Definition: instruction.h:98
InstrArray
An array of instruction.
Definition: instruction.h:128
SelInstr
Select instruction.
Definition: instruction.h:78
SelInstr::columns
charray * columns
Columns name, if empty represents all columns.
Definition: instruction.h:84
SelInstr::type
instrType type
Always "sel".
Definition: instruction.h:80
SelInstr::table
char * table
Table name.
Definition: instruction.h:82
SelInstr::has_cond
int has_cond
1 if there is a where statement in the instruction
Definition: instruction.h:86
SelInstr::cond
struct condition * cond
The condition in the where.
Definition: instruction.h:88
charray
An array of char* (string)
Definition: instruction.h:48
charray::size
int size
The size of the array.
Definition: instruction.h:52
charray::arr
char ** arr
The array.
Definition: instruction.h:50
condition
An equality condition.
Definition: instruction.h:59
condition::col
char * col
Column name.
Definition: instruction.h:61
condition::val
char * val
Column value.
Definition: instruction.h:63
instr
One yacDB instruction, this type is meant to be casted into other instr type.
Definition: instruction.h:69