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Diffstat (limited to 'src/interfaces/ecpg/preproc/preproc.y')
-rw-r--r--src/interfaces/ecpg/preproc/preproc.y142
1 files changed, 124 insertions, 18 deletions
diff --git a/src/interfaces/ecpg/preproc/preproc.y b/src/interfaces/ecpg/preproc/preproc.y
index 670ea9b8c6a..52b814ac194 100644
--- a/src/interfaces/ecpg/preproc/preproc.y
+++ b/src/interfaces/ecpg/preproc/preproc.y
@@ -14,6 +14,8 @@ static void yyerror(char *);
*/
int debugging = 0;
static int struct_level = 0;
+static char *do_str = NULL;
+static int do_length = 0;
/* temporarily store record members while creating the data structure */
struct ECPGrecord_member *record_member_list[128] = { NULL };
@@ -23,7 +25,7 @@ struct ECPGrecord_member *record_member_list[128] = { NULL };
*/
char * input_filename = NULL;
-void
+static void
output_line_number()
{
if (input_filename)
@@ -31,6 +33,47 @@ output_line_number()
}
/*
+ * store the whenever action here
+ */
+static struct when when_error, when_nf;
+
+static void
+print_action(struct when *w)
+{
+ switch (w->code)
+ {
+ case W_CONTINUE: fprintf(yyout, "continue;");
+ break;
+ case W_BREAK: fprintf(yyout, "break;");
+ break;
+ case W_SQLPRINT: fprintf(yyout, "sqlprint();");
+ break;
+ case W_GOTO: fprintf(yyout, "goto %s;", w->str);
+ break;
+ case W_DO: fprintf(yyout, "%s;", w->str);
+ break;
+ default: fprintf(yyout, "{/* not implemented yet */}");
+ break;
+ }
+}
+
+static void
+whenever_action()
+{
+ if (when_nf.code != W_NOTHING)
+ {
+ fprintf(yyout, "\nif (SQLCODE > 0) ");
+ print_action(&when_nf);
+ }
+ if (when_error.code != W_NOTHING)
+ {
+ fprintf(yyout, "\nif (SQLCODE < 0) ");
+ print_action(&when_error);
+ }
+ output_line_number();
+}
+
+/*
* Handling of the variables.
*/
@@ -176,28 +219,31 @@ dump_variables(struct arguments * list)
char * symbolname;
int indexsize;
enum ECPGttype type_enum;
+ struct when action;
}
%token <tagname> SQL_START SQL_SEMI SQL_STRING SQL_INTO
%token <tagname> SQL_BEGIN SQL_END SQL_DECLARE SQL_SECTION SQL_INCLUDE
%token <tagname> SQL_CONNECT SQL_OPEN SQL_EXECUTE SQL_IMMEDIATE
-%token <tagname> SQL_COMMIT SQL_ROLLBACK SQL_RELEASE SQL_WORK
+%token <tagname> SQL_COMMIT SQL_ROLLBACK SQL_RELEASE SQL_WORK SQL_WHENEVER
+%token <tagname> SQL_SQLERROR SQL_NOT_FOUND SQL_BREAK SQL_CONTINUE
+%token <tagname> SQL_DO SQL_GOTO SQL_SQLPRINT
-%token <tagname> S_SYMBOL S_LENGTH S_ANYTHING
+%token <tagname> S_SYMBOL S_LENGTH S_ANYTHING S_LABEL
%token <tagname> S_VARCHAR S_VARCHAR2
-%token <tagname> S_EXTERN S_STATIC S_AUTO S_CONST S_REGISTER S_STRUCT
+%token <tagname> S_EXTERN S_STATIC S_AUTO S_CONST S_REGISTER S_STRUCT S_SIGNED
%token <tagname> S_UNSIGNED S_SIGNED
%token <tagname> S_LONG S_SHORT S_INT S_CHAR S_FLOAT S_DOUBLE S_BOOL
-%token <tagname> '[' ']' ';' ',' '{' '}' '=' '*'
+%token <tagname> '[' ']' ';' ',' '{' '}' '=' '*' '(' ')'
%type <type> type type_detailed varchar_type simple_type array_type struct_type
-%type <symbolname> symbol
+%type <symbolname> symbol label
%type <tagname> maybe_storage_clause varchar_tag db_name
%type <type_enum> simple_tag
%type <indexsize> index length
+%type <action> action
%type <tagname> canything sqlanything both_anything vartext commit_release
-
%%
prog : statements;
@@ -211,6 +257,7 @@ statement : sqldeclaration
| sqlcommit
| sqlrollback
| sqlexecute
+ | sqlwhenever
| sqlstatement
| cthing
| blockstart
@@ -247,8 +294,18 @@ variable_declaration : type initializer ';' {
initializer : /*empty */
| '=' {fwrite(yytext, yyleng, 1, yyout);} vartext;
-vartext : both_anything {fwrite(yytext, yyleng, 1, yyout);}
- | vartext both_anything {fwrite(yytext, yyleng, 1, yyout);}
+vartext : /* empty */ {}
+ | vartext both_anything {
+ if (do_length == 0)
+ fwrite(yytext, yyleng, 1, yyout);
+ else
+ {
+ if (strlen(do_str) + yyleng + 1 >= do_length)
+ do_str = mm_realloc(do_str, do_length += yyleng);
+
+ strcat(do_str, yytext);
+ }
+}
symbol : S_SYMBOL {
char * name = (char *)malloc(yyleng + 1);
@@ -351,6 +408,7 @@ simple_tag : S_CHAR { $<type_enum>$ = ECPGt_char; }
maybe_storage_clause : S_EXTERN { fwrite(yytext, yyleng, 1, yyout); }
| S_STATIC { fwrite(yytext, yyleng, 1, yyout); }
+ | S_SIGNED { fwrite(yytext, yyleng, 1, yyout); }
| S_CONST { fwrite(yytext, yyleng, 1, yyout); }
| S_REGISTER { fwrite(yytext, yyleng, 1, yyout); }
| S_AUTO { fwrite(yytext, yyleng, 1, yyout); }
@@ -369,7 +427,7 @@ filename : cthing
sqlconnect : SQL_START SQL_CONNECT { fprintf(yyout, "ECPGconnect("); }
db_name
- SQL_SEMI { fprintf(yyout, ");"); output_line_number();}
+ SQL_SEMI { fprintf(yyout, ");"); whenever_action();}
db_name : SQL_STRING { fprintf(yyout, "\""); fwrite(yytext + 1, yyleng - 2, 1, yyout); fprintf(yyout, "\""); }
| ':' symbol { /* check if we have a char variabnle */
@@ -395,7 +453,7 @@ sqlgarbage : /* Empty */
sqlcommit : SQL_START commit_release SQL_SEMI {
fprintf(yyout, "ECPGcommit(__LINE__);");
- output_line_number();
+ whenever_action();
}
commit_release : SQL_COMMIT
@@ -404,7 +462,7 @@ commit_release : SQL_COMMIT
sqlrollback : SQL_START SQL_ROLLBACK SQL_SEMI {
fprintf(yyout, "ECPGrollback(__LINE__);");
- output_line_number();
+ whenever_action();
};
sqlexecute : SQL_START { /* Reset stack */
@@ -415,11 +473,59 @@ sqlexecute : SQL_START { /* Reset stack */
fprintf(yyout, "\", ");
dump_variables(argsinsert);
fprintf(yyout, "ECPGt_EOIT, ");
- dump_variables(argsresult);
+ /* dump_variables(argsresult); output variables must not exist here */
fprintf(yyout, "ECPGt_EORT );");
- output_line_number();
+ whenever_action();
};
+sqlwhenever : SQL_START SQL_WHENEVER SQL_SQLERROR action SQL_SEMI{
+ when_error = $<action>4;
+}
+ | SQL_START SQL_WHENEVER SQL_NOT_FOUND action SQL_SEMI{
+ when_nf = $<action>4;
+}
+
+action : SQL_BREAK {
+ $<action>$.code = W_BREAK;
+ $<action>$.str = NULL;
+}
+ | SQL_CONTINUE {
+ $<action>$.code = W_CONTINUE;
+ $<action>$.str = NULL;
+}
+ | SQL_SQLPRINT {
+ $<action>$.code = W_SQLPRINT;
+ $<action>$.str = NULL;
+}
+ | SQL_GOTO label {
+ $<action>$.code = W_GOTO;
+ $<action>$.str = $<symbolname>2;
+}
+ | SQL_GOTO symbol {
+ $<action>$.code = W_GOTO;
+ $<action>$.str = $<symbolname>2;
+}
+ | SQL_DO symbol '(' {
+ do_str = (char *) mm_alloc(do_length = strlen($<symbolname>2) + 4);
+ sprintf(do_str, "%s (", $<symbolname>2);
+} vartext ')' {
+ do_str[strlen(do_str)+1]='\0';
+ do_str[strlen(do_str)]=')';
+ $<action>$.code = W_DO;
+ $<action>$.str = do_str;
+ do_str = NULL;
+ do_length = 0;
+}
+
+label : S_LABEL {
+ char * name = (char *)malloc(yyleng + 1);
+
+ strncpy(name, yytext, yyleng);
+ name[yyleng] = '\0';
+
+ $<symbolname>$ = name;
+}
+
sqlstatement : SQL_START { /* Reset stack */
reset_variables();
fprintf(yyout, "ECPGdo(__LINE__, \"");
@@ -430,7 +536,7 @@ sqlstatement : SQL_START { /* Reset stack */
fprintf(yyout, "ECPGt_EOIT, ");
dump_variables(argsresult);
fprintf(yyout, "ECPGt_EORT );");
- output_line_number();
+ whenever_action();
};
sqlstatement_words : sqlstatement_word
@@ -478,9 +584,9 @@ both_anything : S_LENGTH | S_VARCHAR | S_VARCHAR2
| SQL_BEGIN | SQL_END
| SQL_DECLARE | SQL_SECTION
| SQL_INCLUDE
- | S_SYMBOL
+ | S_SYMBOL | S_LABEL
| S_STATIC | S_EXTERN | S_AUTO | S_CONST | S_REGISTER | S_STRUCT
- | '[' | ']' | ',' | '=' | '*'
+ | '[' | ']' | ',' | '=' | '*' | '(' | ')'
| S_ANYTHING;
blockstart : '{' {
@@ -495,6 +601,6 @@ blockend : '}' {
%%
static void yyerror(char * error)
{
- fprintf(stderr, "%s\n", error);
+ fprintf(stderr, "%s in line %d\n", error, yylineno);
exit(1);
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-15 23:29:40 +0000