postgresql/src/interfaces/ecpg/preproc/output.c

149 lines
2.6 KiB
C

#include <stdarg.h>
#include "postgres.h"
#include "extern.h"
void
output_line_number()
{
if (input_filename)
fprintf(yyout, "\n#line %d \"%s\"\n", yylineno, input_filename);
}
void
output_simple_statement(char *cmd)
{
int i,
j = strlen(cmd);;
/* do this char by char as we have to filter '\"' */
for (i = 0; i < j; i++)
{
if (cmd[i] != '"')
fputc(cmd[i], yyout);
else
fputs("\\\"", yyout);
}
output_line_number();
free(cmd);
}
/*
* store the whenever action here
*/
struct when when_error,
when_nf,
when_warn;
static void
print_action(struct when * w)
{
switch (w->code)
{
case W_SQLPRINT:fprintf(yyout, "sqlprint();");
break;
case W_GOTO:
fprintf(yyout, "goto %s;", w->command);
break;
case W_DO:
fprintf(yyout, "%s;", w->command);
break;
case W_STOP:
fprintf(yyout, "exit (1);");
break;
case W_BREAK:
fprintf(yyout, "break;");
break;
default:
fprintf(yyout, "{/* %d not implemented yet */}", w->code);
break;
}
}
void
whenever_action(int mode)
{
if ((mode & 1) == 1 && when_nf.code != W_NOTHING)
{
output_line_number();
fprintf(yyout, "\nif (sqlca.sqlcode == ECPG_NOT_FOUND) ");
print_action(&when_nf);
}
if (when_warn.code != W_NOTHING)
{
output_line_number();
fprintf(yyout, "\nif (sqlca.sqlwarn[0] == 'W') ");
print_action(&when_warn);
}
if (when_error.code != W_NOTHING)
{
output_line_number();
fprintf(yyout, "\nif (sqlca.sqlcode < 0) ");
print_action(&when_error);
}
if ((mode & 2) == 2)
fputc('}', yyout);
output_line_number();
}
char *
hashline_number(void)
{
if (input_filename)
{
char *line = mm_alloc(strlen("\n#line %d \"%s\"\n") + 21 + strlen(input_filename));
sprintf(line, "\n#line %d \"%s\"\n", yylineno, input_filename);
return line;
}
return EMPTY;
}
void
output_statement(char *stmt, int mode, char *descriptor, char *con)
{
int i,
j = strlen(stmt);
if (descriptor == NULL)
fprintf(yyout, "{ ECPGdo(__LINE__, %s, \"", con ? con : "NULL");
else
fprintf(yyout, "{ ECPGdo_descriptor(__LINE__, %s, \"%s\", \"",
con ? con : "NULL", descriptor);
/* do this char by char as we have to filter '\"' */
for (i = 0; i < j; i++)
{
if (stmt[i] != '"')
fputc(stmt[i], yyout);
else
fputs("\\\"", yyout);
}
if (descriptor == NULL)
{
fputs("\", ", yyout);
/* dump variables to C file */
dump_variables(argsinsert, 1);
fputs("ECPGt_EOIT, ", yyout);
dump_variables(argsresult, 1);
fputs("ECPGt_EORT);", yyout);
reset_variables();
}
else
fputs("\");", yyout);
mode |= 2;
whenever_action(mode);
free(stmt);
if (descriptor != NULL)
free(descriptor);
if (connection != NULL)
free(connection);
}