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// test_parse_sql_statemets.cpp : Defines the entry point for the console application.
//
#include "stdio.h"
#include "myx_public_interface.h"
void print_usage()
{
printf("usage : test_parse_sql_statements.exe "
"use|load|delimiter|exit|help|start|commit|rollback [filename]\n");
}
void process_text_res(const char * text, char * res)
{
printf("%s\n------------------------------------------------------>\n",text);
if (!res)
{
printf("<null>\n------------------------------------------------------\n");
}
else
{
printf("%s\n------------------------------------------------------\n",res);
myx_free_lib_str(res);
}
}
void process_int_res(const char * text, int res)
{
printf("%s\n------------------------------------------------>%d\n",text,res);
}
void test(const char * tag, const char * text)
{
if (!strcmp(tag,"use"))
{
process_text_res(text,myx_parse_sqlmemo_command_use(text));
}
else if (!strcmp(tag,"load"))
{
process_text_res(text,myx_parse_sqlmemo_command_load(text));
}
else if (!strcmp(tag,"delimiter"))
{
process_text_res(text,myx_parse_sqlmemo_command_delimiter(text));
}
else if (!strcmp(tag,"exit"))
{
process_int_res(text,myx_parse_sqlmemo_command_exit(text));
}
else if (!strcmp(tag,"help"))
{
process_text_res(text,myx_parse_sqlmemo_command_help(text));
}
else if (!strcmp(tag,"start"))
{
process_int_res(text,myx_parse_sqlmemo_command_transaction_start(text));
}
else if (!strcmp(tag,"commit"))
{
process_int_res(text,myx_parse_sqlmemo_command_transaction_commit(text));
}
else if (!strcmp(tag,"rollback"))
{
process_int_res(text,myx_parse_sqlmemo_command_transaction_rollback(text));
}
}
bool read_separator(FILE * file, char * buffer, size_t buffer_size)
{
while (fgets(buffer,(int)(buffer_size-1),file) &&
(buffer[0] == '\r' || buffer[0] == '\n'));
return buffer[0] != '\r' && buffer[0] != '\n' && buffer[0]!=0;
}
size_t prepare_line(char * line, size_t len)
{
if (line)
{
while (len && (line[len-1]=='\r' || line[len-1]=='\n'))
line[--len]= 0;
}
return len;
}
size_t read_text_till_separator(FILE * file,
char * text_buffer, size_t text_buffer_size,
char * line_buffer, size_t line_buffer_size,
const char * separator, size_t separator_len)
{
text_buffer[0]= 0;
size_t text_len= 0;
while (fgets(line_buffer,(int)(line_buffer_size-1),file))
{
size_t line_len= strlen(line_buffer);
if (separator_len==line_len && !strncmp(line_buffer,separator,line_len))
break;
if (line_len + text_len < text_buffer_size)
{
strcat(text_buffer+text_len,line_buffer);
text_len += line_len;
}
}
return prepare_line(text_buffer,text_len);
}
char separator_buffer [255];
char line_buffer [255];
char query_buffer [10000];
void test(const char * tag, FILE * file)
{
while (!feof(file))
{
if (read_separator(file,separator_buffer,sizeof(separator_buffer)) &&
read_text_till_separator(file,
query_buffer,sizeof(query_buffer),
line_buffer,sizeof(line_buffer),
separator_buffer,strlen(separator_buffer)))
{
test(tag,query_buffer);
}
}
}
int main(int argc, char * argv[])
{
if (argc<2)
print_usage();
else
{
if (argc==2)
test(argv[1],stdin);
else
{
FILE * file= fopen(argv[2],"r");
if (!file)
{
printf("can't open file \"%s\" !\n",argv[2]);
}
else
{
test(argv[1],file);
fclose(file);
}
}
}
return 0;
}
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