dict_int.c File Reference

#include "postgres.h"
#include "commands/defrem.h"
#include "tsearch/ts_public.h"

Include dependency graph for dict_int.c:

Go to the source code of this file.

Data Structures
struct	DictInt

Functions
	PG_MODULE_MAGIC_EXT (.name="dict_int",.version=PG_VERSION)
	PG_FUNCTION_INFO_V1 (dintdict_init)
	PG_FUNCTION_INFO_V1 (dintdict_lexize)
Datum	dintdict_init (PG_FUNCTION_ARGS)
Datum	dintdict_lexize (PG_FUNCTION_ARGS)

Function Documentation

dintdict_init()

Datum dintdict_init

(

PG_FUNCTION_ARGS

)

Definition at line 35 of file dict_int.c.

{
    List       *dictoptions = (List *) PG_GETARG_POINTER(0);
    DictInt    *d;
    ListCell   *l;
 
    d = (DictInt *) palloc0(sizeof(DictInt));
    d->maxlen = 6;
    d->rejectlong = false;
    d->absval = false;
 
    foreach(l, dictoptions)
    {
        DefElem    *defel = (DefElem *) lfirst(l);
 
        if (strcmp(defel->defname, "maxlen") == 0)
        {
            d->maxlen = atoi(defGetString(defel));
 
            if (d->maxlen < 1)
                ereport(ERROR,
                        (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                         errmsg("maxlen value has to be >= 1")));
        }
        else if (strcmp(defel->defname, "rejectlong") == 0)
        {
            d->rejectlong = defGetBoolean(defel);
        }
        else if (strcmp(defel->defname, "absval") == 0)
        {
            d->absval = defGetBoolean(defel);
        }
        else
        {
            ereport(ERROR,
                    (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                     errmsg("unrecognized intdict parameter: \"%s\"",
                            defel->defname)));
        }
    }
 
    PG_RETURN_POINTER(d);
}

References DictInt::absval, defGetBoolean(), defGetString(), DefElem::defname, ereport, errcode(), errmsg(), ERROR, lfirst, DictInt::maxlen, palloc0(), PG_GETARG_POINTER, PG_RETURN_POINTER, and DictInt::rejectlong.

dintdict_lexize()

Datum dintdict_lexize

(

PG_FUNCTION_ARGS

)

Definition at line 80 of file dict_int.c.

{
    DictInt    *d = (DictInt *) PG_GETARG_POINTER(0);
    char       *in = (char *) PG_GETARG_POINTER(1);
    int         len = PG_GETARG_INT32(2);
    char       *txt;
    TSLexeme   *res = palloc0(sizeof(TSLexeme) * 2);
 
    res[1].lexeme = NULL;
 
    if (d->absval && (in[0] == '+' || in[0] == '-'))
    {
        len--;
        txt = pnstrdup(in + 1, len);
    }
    else
        txt = pnstrdup(in, len);
 
    if (len > d->maxlen)
    {
        if (d->rejectlong)
        {
            /* reject by returning void array */
            pfree(txt);
            res[0].lexeme = NULL;
        }
        else
        {
            /* trim integer */
            txt[d->maxlen] = '\0';
            res[0].lexeme = txt;
        }
    }
    else
    {
        res[0].lexeme = txt;
    }
 
    PG_RETURN_POINTER(res);
}

References DictInt::absval, len, TSLexeme::lexeme, DictInt::maxlen, palloc0(), pfree(), PG_GETARG_INT32, PG_GETARG_POINTER, PG_RETURN_POINTER, pnstrdup(), and DictInt::rejectlong.

PG_FUNCTION_INFO_V1() [1/2]

PG_FUNCTION_INFO_V1

(

dintdict_init

)

PG_FUNCTION_INFO_V1() [2/2]

PG_FUNCTION_INFO_V1

(

dintdict_lexize

)

PG_MODULE_MAGIC_EXT()

PG_MODULE_MAGIC_EXT	(	.	name = "dict_int",
		.	version = PG_VERSION
	)