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added qse_xli_insertpairwithstrs().

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renamed qse_xli_getnumpairs() to qse_xli_countpairs().
reworked qse_xli_findpair() and qse_xli_countpairs()
This commit is contained in:
hyung-hwan 2013-07-15 06:52:06 +00:00
parent 2b58fc6fe3
commit 462c891e1d
4 changed files with 405 additions and 241 deletions
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4
qse/cmd/http/httpd.c
View File

@ -1212,7 +1212,7 @@ static int load_server_config (qse_httpd_t* httpd, qse_httpd_server_t* server, q
} }
/* load host/location specific configuration */ /* load host/location specific configuration */
host_count = qse_xli_getnumpairs (httpd_xtn->xli, list, QSE_T("host")); host_count = qse_xli_countpairs (httpd_xtn->xli, list, QSE_T("host"));
if (host_count <= 0) return 0; /* nothing to load */ if (host_count <= 0) return 0; /* nothing to load */
QSE_ASSERT (server_xtn->cfgtab == QSE_NULL); QSE_ASSERT (server_xtn->cfgtab == QSE_NULL);
@ -1240,7 +1240,7 @@ static int load_server_config (qse_httpd_t* httpd, qse_httpd_server_t* server, q
if (host->val->type == QSE_XLI_LIST && host->alias) if (host->val->type == QSE_XLI_LIST && host->alias)
{ {
loc_count = qse_xli_getnumpairs (httpd_xtn->xli, (qse_xli_list_t*)host->val, QSE_T("location")); loc_count = qse_xli_countpairs (httpd_xtn->xli, (qse_xli_list_t*)host->val, QSE_T("location"));
if (((hostcfg = qse_httpd_callocmem (httpd, QSE_SIZEOF(*hostcfg))) == QSE_NULL) || if (((hostcfg = qse_httpd_callocmem (httpd, QSE_SIZEOF(*hostcfg))) == QSE_NULL) ||
((hostcfg->hostname = qse_httpd_strtombsdup (httpd, (host->alias[0] == QSE_T('\0')? QSE_T("*"):host->alias))) == QSE_NULL)) goto oops; ((hostcfg->hostname = qse_httpd_strtombsdup (httpd, (host->alias[0] == QSE_T('\0')? QSE_T("*"):host->alias))) == QSE_NULL)) goto oops;

22
qse/cmd/xli/xli.c
View File

@ -484,9 +484,31 @@ for (i = 0; i < QSE_COUNTOF(defs); i++) qse_xli_definepair (xli, defs[i].name, &
goto oops; goto oops;
} }
{
static qse_cstr_t strs[] =
{
{ QSE_T("hello"), 5 },
{ QSE_T("xli"), 3 },
{ QSE_T("world"), 5 }
};
if (qse_xli_insertpairwithstrs (xli, qse_xli_getroot(xli), QSE_NULL, QSE_T("test-key"), QSE_NULL, strs, QSE_COUNTOF(strs)) == QSE_NULL)
{
qse_fprintf (QSE_STDERR,
QSE_T("ERROR: cannot insert a string pair - %s \n"),
qse_xli_geterrmsg(xli)
);
}
}
if (g_lookup_key) if (g_lookup_key)
{ {
qse_xli_pair_t* pair; qse_xli_pair_t* pair;
qse_size_t count;
count = qse_xli_countpairs (xli, QSE_NULL, g_lookup_key);
qse_printf (QSE_T("COUNT: %lu\n"), (unsigned long)count);
pair = qse_xli_findpair (xli, QSE_NULL, g_lookup_key); pair = qse_xli_findpair (xli, QSE_NULL, g_lookup_key);
if (pair == QSE_NULL) if (pair == QSE_NULL)
{ {

28
qse/include/qse/xli/xli.h
View File

@ -148,7 +148,8 @@ struct qse_xli_str_t
qse_xli_atom_type_t type; \ qse_xli_atom_type_t type; \
qse_xli_atom_t* prev; \ qse_xli_atom_t* prev; \
qse_xli_atom_t* next; \ qse_xli_atom_t* next; \
qse_xli_file_t* file qse_xli_file_t* file; \
qse_xli_list_t* super
struct qse_xli_atom_t struct qse_xli_atom_t
{ {
@ -160,7 +161,7 @@ struct qse_xli_pair_t
QSE_XLI_ATOM_HDR; QSE_XLI_ATOM_HDR;
const qse_char_t* key; const qse_char_t* key;
const qse_char_t* alias; const qse_char_t* alias;
qse_xli_val_t* val; qse_xli_val_t* val;
}; };
struct qse_xli_text_t struct qse_xli_text_t
@ -524,6 +525,16 @@ QSE_EXPORT qse_xli_pair_t* qse_xli_insertpairwithstr (
const qse_cstr_t* value const qse_cstr_t* value
); );
QSE_EXPORT qse_xli_pair_t* qse_xli_insertpairwithstrs (
qse_xli_t* xli,
qse_xli_list_t* list,
qse_xli_atom_t* peer,
const qse_char_t* key,
const qse_char_t* alias,
const qse_cstr_t value[],
qse_size_t count
);
QSE_EXPORT qse_xli_text_t* qse_xli_inserttext ( QSE_EXPORT qse_xli_text_t* qse_xli_inserttext (
qse_xli_t* xli, qse_xli_t* xli,
qse_xli_list_t* parent, qse_xli_list_t* parent,
@ -547,13 +558,13 @@ QSE_EXPORT qse_xli_eof_t* qse_xli_inserteof (
QSE_EXPORT qse_xli_pair_t* qse_xli_findpair ( QSE_EXPORT qse_xli_pair_t* qse_xli_findpair (
qse_xli_t* xli, qse_xli_t* xli,
const qse_xli_list_t* list, const qse_xli_list_t* list,
const qse_char_t* dotted_name const qse_char_t* fqpn
); );
QSE_EXPORT qse_size_t qse_xli_getnumpairs ( QSE_EXPORT qse_size_t qse_xli_countpairs (
qse_xli_t* xli, qse_xli_t* xli,
const qse_xli_list_t* list, const qse_xli_list_t* list,
const qse_char_t* dotted_name const qse_char_t* fqpn
); );
/** /**
@ -593,15 +604,18 @@ QSE_EXPORT void qse_xli_clear (
qse_xli_t* xli qse_xli_t* xli
); );
/**
* The qse_xli_definepair() function defines a pair structure.
*/
QSE_EXPORT int qse_xli_definepair ( QSE_EXPORT int qse_xli_definepair (
qse_xli_t* xli, qse_xli_t* xli,
const qse_char_t* pair_name, const qse_char_t* fqpn,
const qse_xli_scm_t* scm const qse_xli_scm_t* scm
); );
QSE_EXPORT int qse_xli_undefinepair ( QSE_EXPORT int qse_xli_undefinepair (
qse_xli_t* xli, qse_xli_t* xli,
const qse_char_t* pair_name const qse_char_t* fqpn
); );
QSE_EXPORT void qse_xli_undefinepairs ( QSE_EXPORT void qse_xli_undefinepairs (

592
qse/lib/xli/xli.c
View File

@ -21,6 +21,10 @@
#include "xli.h" #include "xli.h"
#include <qse/cmn/chr.h> #include <qse/cmn/chr.h>
static void free_val (qse_xli_t* xli, qse_xli_val_t* val);
static void free_list (qse_xli_t* xli, qse_xli_list_t* list);
static void free_atom (qse_xli_t* xli, qse_xli_atom_t* atom);
qse_xli_t* qse_xli_open (qse_mmgr_t* mmgr, qse_size_t xtnsize) qse_xli_t* qse_xli_open (qse_mmgr_t* mmgr, qse_size_t xtnsize)
{ {
qse_xli_t* xli; qse_xli_t* xli;
@ -196,40 +200,64 @@ static void insert_atom (
atom->next = peer; atom->next = peer;
peer->prev = atom; peer->prev = atom;
} }
atom->super = parent;
}
static qse_xli_pair_t* insert_pair (
qse_xli_t* xli, qse_xli_list_t* parent, qse_xli_atom_t* peer,
const qse_cstr_t* key, const qse_cstr_t* alias, qse_xli_val_t* value)
{
qse_xli_pair_t* pair;
qse_size_t alen;
qse_char_t* kptr, * nptr;
alen = alias? alias->len: 0;
pair = qse_xli_callocmem (xli,
QSE_SIZEOF(*pair) +
((key->len + 1) * QSE_SIZEOF(*key->ptr)) +
((alen + 1) * QSE_SIZEOF(*alias->ptr)));
if (pair == QSE_NULL) return QSE_NULL;
kptr = (qse_char_t*)(pair + 1);
qse_strcpy (kptr, key->ptr);
pair->type = QSE_XLI_PAIR;
pair->key = kptr;
if (alias)
{
nptr = kptr + key->len + 1;
qse_strcpy (nptr, alias->ptr);
pair->alias = nptr;
}
pair->val = value; /* take note of no duplication here */
insert_atom (xli, parent, peer, (qse_xli_atom_t*)pair);
return pair;
} }
qse_xli_pair_t* qse_xli_insertpair ( qse_xli_pair_t* qse_xli_insertpair (
qse_xli_t* xli, qse_xli_list_t* parent, qse_xli_atom_t* peer, qse_xli_t* xli, qse_xli_list_t* parent, qse_xli_atom_t* peer,
const qse_char_t* key, const qse_char_t* alias, qse_xli_val_t* value) const qse_char_t* key, const qse_char_t* alias, qse_xli_val_t* value)
{ {
qse_xli_pair_t* pair; qse_cstr_t k;
qse_size_t klen, nlen;
qse_char_t* kptr, * nptr;
klen = qse_strlen (key); k.ptr = key;
nlen = alias? qse_strlen (alias): 0; k.len = qse_strlen (key);
pair = qse_xli_callocmem (xli, if (alias)
QSE_SIZEOF(*pair) +
((klen + 1) * QSE_SIZEOF(*key)) +
((nlen + 1) * QSE_SIZEOF(*alias)));
if (pair == QSE_NULL) return QSE_NULL;
kptr = (qse_char_t*)(pair + 1);
qse_strcpy (kptr, key);
pair->type = QSE_XLI_PAIR;
pair->key = kptr;
if (alias)
{ {
nptr = kptr + klen + 1; qse_cstr_t a;
qse_strcpy (nptr, alias);
pair->alias = nptr;
}
pair->val = value; /* this assumes it points to a dynamically allocated atom */
insert_atom (xli, parent, peer, (qse_xli_atom_t*)pair); a.ptr = alias;
return pair; a.len = qse_strlen (alias);
return insert_pair (xli, parent, peer, &k, &a, value);
}
else
{
return insert_pair (xli, parent, peer, &k, QSE_NULL, value);
}
} }
qse_xli_pair_t* qse_xli_insertpairwithemptylist ( qse_xli_pair_t* qse_xli_insertpairwithemptylist (
@ -269,6 +297,38 @@ qse_xli_pair_t* qse_xli_insertpairwithstr (
return tmp; return tmp;
} }
qse_xli_pair_t* qse_xli_insertpairwithstrs (
qse_xli_t* xli, qse_xli_list_t* parent, qse_xli_atom_t* peer,
const qse_char_t* key, const qse_char_t* alias,
const qse_cstr_t value[], qse_size_t count)
{
qse_xli_pair_t* tmp;
qse_xli_str_t* str;
qse_size_t i;
if (count <= 0)
{
qse_xli_seterrnum (xli, QSE_XLI_EINVAL, QSE_NULL);
return QSE_NULL;
}
tmp = qse_xli_insertpairwithstr (xli, parent, peer, key, alias, &value[0]);
if (tmp == QSE_NULL) return QSE_NULL;
str = (qse_xli_str_t*)tmp->val;
for (i = 1; i < count; i++)
{
str = qse_xli_addsegtostr (xli, str, &value[i]);
if (str == QSE_NULL)
{
free_atom (xli, (qse_xli_atom_t*)tmp);
return QSE_NULL;
}
}
return tmp;
}
qse_xli_text_t* qse_xli_inserttext ( qse_xli_text_t* qse_xli_inserttext (
qse_xli_t* xli, qse_xli_list_t* parent, qse_xli_atom_t* peer, const qse_char_t* str) qse_xli_t* xli, qse_xli_list_t* parent, qse_xli_atom_t* peer, const qse_char_t* str)
{ {
@ -327,35 +387,32 @@ qse_xli_eof_t* qse_xli_inserteof (
/* ------------------------------------------------------ */ /* ------------------------------------------------------ */
static void free_list (qse_xli_t* xli, qse_xli_list_t* list); static void free_val (qse_xli_t* xli, qse_xli_val_t* val)
{
if ((qse_xli_nil_t*)val != &xli->xnil)
{
if (val->type == QSE_XLI_LIST)
free_list (xli, (qse_xli_list_t*)val);
else if (val->type == QSE_XLI_STR)
{
qse_xli_str_t* cur, * next;
cur = ((qse_xli_str_t*)val)->next;
while (cur)
{
next = cur->next;
QSE_MMGR_FREE (xli->mmgr, cur);
cur = next;
}
}
QSE_MMGR_FREE (xli->mmgr, val);
}
}
static void free_atom (qse_xli_t* xli, qse_xli_atom_t* atom) static void free_atom (qse_xli_t* xli, qse_xli_atom_t* atom)
{ {
if (atom->type == QSE_XLI_PAIR) if (atom->type == QSE_XLI_PAIR) free_val (xli, ((qse_xli_pair_t*)atom)->val);
{
qse_xli_pair_t* pair = (qse_xli_pair_t*)atom;
if ((qse_xli_nil_t*)pair->val != &xli->xnil)
{
if (pair->val->type == QSE_XLI_LIST)
free_list (xli, (qse_xli_list_t*)pair->val);
else if (pair->val->type == QSE_XLI_STR)
{
qse_xli_str_t* cur, * next;
cur = ((qse_xli_str_t*)pair->val)->next;
while (cur)
{
next = cur->next;
QSE_MMGR_FREE (xli->mmgr, cur);
cur = next;
}
}
QSE_MMGR_FREE (xli->mmgr, pair->val);
}
}
QSE_MMGR_FREE (xli->mmgr, atom); QSE_MMGR_FREE (xli->mmgr, atom);
} }
@ -398,9 +455,8 @@ void qse_xli_clearroot (qse_xli_t* xli)
/* ------------------------------------------------------ */ /* ------------------------------------------------------ */
static qse_size_t count_pairs_by_key_and_alias ( static qse_size_t count_pairs_by_key (
qse_xli_t* xli, const qse_xli_list_t* list, qse_xli_t* xli, const qse_xli_list_t* list, const qse_cstr_t* key)
const qse_cstr_t* key, const qse_cstr_t* alias)
{ {
qse_xli_atom_t* p; qse_xli_atom_t* p;
qse_size_t count = 0; qse_size_t count = 0;
@ -412,11 +468,7 @@ static qse_size_t count_pairs_by_key_and_alias (
if (p->type == QSE_XLI_PAIR) if (p->type == QSE_XLI_PAIR)
{ {
qse_xli_pair_t* pair = (qse_xli_pair_t*)p; qse_xli_pair_t* pair = (qse_xli_pair_t*)p;
if (qse_strxcmp (key->ptr, key->len, pair->key) == 0) if (qse_strxcmp (key->ptr, key->len, pair->key) == 0) count++;
{
if (alias == QSE_NULL ||
qse_strxcmp (alias->ptr, alias->len, pair->alias) == 0) count++;
}
} }
p = p->next; p = p->next;
@ -478,103 +530,145 @@ static qse_xli_pair_t* find_pair_by_key_and_index (
return QSE_NULL; return QSE_NULL;
} }
qse_xli_pair_t* qse_xli_findpair (qse_xli_t* xli, const qse_xli_list_t* list, const qse_char_t* pair_name)
struct fqpn_seg_t
{
qse_cstr_t ki; /* key + index */
qse_cstr_t key;
enum
{
FQPN_SEG_IDX_NONE,
FQPN_SEG_IDX_NUMBER,
FQPN_SEG_IDX_ALIAS
} idxtype;
union
{
qse_size_t number;
qse_cstr_t alias;
} idx;
};
typedef struct fqpn_seg_t fqpn_seg_t;
const qse_char_t* get_next_fqpn_segment (qse_xli_t* xli, const qse_char_t* fqpn, fqpn_seg_t* seg)
{
const qse_char_t* ptr;
seg->key.ptr = ptr = fqpn;
while (*ptr != QSE_T('\0') && *ptr != QSE_T('.') && *ptr != QSE_T('[') && *ptr != QSE_T('{')) ptr++;
if (ptr == seg->key.ptr) goto inval; /* no key part */
seg->key.len = ptr - seg->key.ptr;
if (*ptr == QSE_T('['))
{
/* index is specified */
ptr++; /* skip [ */
if (QSE_ISDIGIT(*ptr))
{
/* numeric index */
qse_size_t index = 0, count = 0;
do
{
index = index * 10 + (*ptr++ - QSE_T('0'));
count++;
}
while (QSE_ISDIGIT(*ptr));
if (*ptr != QSE_T(']')) goto inval;
seg->idxtype = FQPN_SEG_IDX_NUMBER;
seg->idx.number = index;
seg->ki.ptr = seg->key.ptr;
seg->ki.len = seg->key.len + count + 2;
}
else goto inval;
ptr++; /* skip ] */
if (*ptr != QSE_T('\0') && *ptr != QSE_T('.')) goto inval;
}
else if (*ptr == QSE_T('{'))
{
/* word index - alias */
ptr++; /* skip { */
/* no escaping is supported for the alias inside {}.
* so if your alias contains these characters (in a quoted string),
* you can't reference it using a dotted key name. */
seg->idxtype = FQPN_SEG_IDX_ALIAS;
seg->idx.alias.ptr = ptr;
while (*ptr != QSE_T('}') && *ptr != QSE_T('\0')) ptr++;
seg->idx.alias.len = ptr - seg->idx.alias.ptr;
seg->ki.ptr = seg->key.ptr;
seg->ki.len = seg->key.len + seg->idx.alias.len + 2;
if (*ptr != QSE_T('}') || seg->idx.alias.len == 0) goto inval;
ptr++; /* skip } */
if (*ptr != QSE_T('\0') && *ptr != QSE_T('.')) goto inval;
}
else
{
seg->idxtype = FQPN_SEG_IDX_NONE;
seg->ki = seg->key;
}
return ptr;
inval:
qse_xli_seterrnum (xli, QSE_XLI_EINVAL, QSE_NULL);
return QSE_NULL;
}
qse_xli_pair_t* qse_xli_findpair (qse_xli_t* xli, const qse_xli_list_t* list, const qse_char_t* fqpn)
{ {
const qse_char_t* ptr; const qse_char_t* ptr;
const qse_xli_list_t* curlist; const qse_xli_list_t* curlist;
qse_xli_pair_t* pair; fqpn_seg_t seg;
qse_cstr_t seg;
curlist = list? list: &xli->root; curlist = list? list: &xli->root;
ptr = pair_name; ptr = fqpn;
while (1) while (1)
{ {
seg.ptr = ptr; qse_xli_pair_t* pair;
while (*ptr != QSE_T('\0') && *ptr != QSE_T('.') && *ptr != QSE_T('[') && *ptr != QSE_T('{')) ptr++;
if (ptr == seg.ptr) goto inval; ptr = get_next_fqpn_segment (xli, ptr, &seg);
seg.len = ptr - seg.ptr; if (ptr == QSE_NULL) return QSE_NULL;
if (curlist->type != QSE_XLI_LIST) if (curlist->type != QSE_XLI_LIST)
{ {
/* check the type of curlist. this check is needed /* check the type of curlist. this check is needed
* because of the unconditional switching at the bottom of the * because of the unconditional switching at the bottom of the
* this loop. this implementation strategy has been chosen * this loop. this implementation strategy has been chosen
* to provide the segment name easily. */ * to provide the segment name easily when setting the error. */
goto noent; goto noent;
} }
if (*ptr == QSE_T('[')) switch (seg.idxtype)
{ {
/* index is specified */ case FQPN_SEG_IDX_NONE:
ptr++; /* skip [ */ pair = find_pair_by_key_and_alias (xli, curlist, &seg.key, QSE_NULL);
break;
if (QSE_ISDIGIT(*ptr)) case FQPN_SEG_IDX_NUMBER:
{ pair = find_pair_by_key_and_index (xli, curlist, &seg.key, seg.idx.number);
/* numeric index */ break;
qse_size_t index = 0, count = 0;
do
{
index = index * 10 + (*ptr++ - QSE_T('0'));
count++;
}
while (QSE_ISDIGIT(*ptr));
if (*ptr != QSE_T(']')) goto inval; default: /*case FQPN_SEG_IDX_ALIAS:*/
pair = find_pair_by_key_and_alias (xli, curlist, &seg.key, &seg.idx.alias);
pair = find_pair_by_key_and_index (xli, curlist, &seg, index); break;
if (pair == QSE_NULL)
{
seg.len += count + 2; /* adjustment for error message */
goto noent;
}
}
else goto inval;
ptr++; /* skip ] */
if (*ptr == QSE_T('\0')) break; /* no more segments */
else if (*ptr != QSE_T('.')) goto inval;
} }
else if (*ptr == QSE_T('{'))
{
/* word index - alias */
qse_cstr_t idx;
ptr++; /* skip { */ if (pair == QSE_NULL) goto noent;
if (*ptr == QSE_T('\0')) return pair; /* no more segments */
/* no escaping is supported for the alias inside {}.
* so if your alias contains these characters (in a quoted string),
* you can't reference it using a dotted key name. */
idx.ptr = ptr;
while (*ptr != QSE_T('}') && *ptr != QSE_T('\0')) ptr++;
idx.len = ptr - idx.ptr;
if (*ptr != QSE_T('}') || idx.len == 0) goto inval;
pair = find_pair_by_key_and_alias (xli, curlist, &seg, &idx);
if (pair == QSE_NULL)
{
seg.len += idx.len + 2; /* adjustment for error message */
goto noent;
}
ptr++; /* skip } */
if (*ptr == QSE_T('\0')) break; /* no more segments */
else if (*ptr != QSE_T('.')) goto inval;
}
else
{
pair = find_pair_by_key_and_alias (xli, curlist, &seg, QSE_NULL);
if (pair == QSE_NULL) goto noent;
if (*ptr == QSE_T('\0')) break; /* no more segments */
}
/* more segments to handle */ /* more segments to handle */
QSE_ASSERT (*ptr == QSE_T('.')); QSE_ASSERT (*ptr == QSE_T('.'));
ptr++; ptr++; /* skip . */
/* switch to the value regardless of its type. /* switch to the value regardless of its type.
* check if it is a list in the beginning of the loop * check if it is a list in the beginning of the loop
@ -582,131 +676,74 @@ qse_xli_pair_t* qse_xli_findpair (qse_xli_t* xli, const qse_xli_list_t* list, co
curlist = (qse_xli_list_t*)pair->val; curlist = (qse_xli_list_t*)pair->val;
} }
return pair; /* this part must never be reached */
qse_xli_seterrnum (xli, QSE_XLI_EINTERN, QSE_NULL);
inval:
qse_xli_seterrnum (xli, QSE_XLI_EINVAL, QSE_NULL);
return QSE_NULL; return QSE_NULL;
noent: noent:
qse_xli_seterrnum (xli, QSE_XLI_ENOENT, &seg); qse_xli_seterrnum (xli, QSE_XLI_ENOENT, &seg.ki);
return QSE_NULL; return QSE_NULL;
} }
qse_size_t qse_xli_getnumpairs (qse_xli_t* xli, const qse_xli_list_t* list, const qse_char_t* pair_name) qse_size_t qse_xli_countpairs (qse_xli_t* xli, const qse_xli_list_t* list, const qse_char_t* fqpn)
{ {
const qse_char_t* ptr; const qse_char_t* ptr;
const qse_xli_list_t* curlist; const qse_xli_list_t* curlist;
qse_xli_pair_t* pair; fqpn_seg_t seg;
qse_cstr_t seg;
curlist = list? list: &xli->root; curlist = list? list: &xli->root;
ptr = pair_name; ptr = fqpn;
while (1) while (1)
{ {
seg.ptr = ptr; qse_xli_pair_t* pair;
while (*ptr != QSE_T('\0') && *ptr != QSE_T('.') && *ptr != QSE_T('[') && *ptr != QSE_T('{')) ptr++;
if (ptr == seg.ptr) goto inval; ptr = get_next_fqpn_segment (xli, ptr, &seg);
seg.len = ptr - seg.ptr; if (ptr == QSE_NULL) return 0;
if (curlist->type != QSE_XLI_LIST) if (curlist->type != QSE_XLI_LIST)
{ {
/* check the type of curlist. this check is needed /* check the type of curlist. this check is needed
* because of the unconditional switching at the bottom of the * because of the unconditional switching at the bottom of the
* this loop. this implementation strategy has been chosen * this loop. this implementation strategy has been chosen
* to provide the segment name easily. */ * to provide the segment name easily when setting the error. */
goto noent; goto noent;
} }
if (*ptr == QSE_T('[')) switch (seg.idxtype)
{ {
/* index is specified */ case FQPN_SEG_IDX_NONE:
ptr++; /* skip [ */ if (*ptr == QSE_T('\0'))
if (QSE_ISDIGIT(*ptr))
{
/* numeric index */
qse_size_t index = 0, count = 0;
do
{ {
index = index * 10 + (*ptr++ - QSE_T('0')); /* last segment */
count++; return count_pairs_by_key (xli, curlist, &seg.key);
} }
while (QSE_ISDIGIT(*ptr));
if (*ptr != QSE_T(']')) goto inval; pair = find_pair_by_key_and_alias (xli, curlist, &seg.key, QSE_NULL);
pair = find_pair_by_key_and_index (xli, curlist, &seg, index);
if (pair == QSE_NULL)
{
seg.len += count + 2; /* adjustment for error message */
goto noent;
}
}
else goto inval;
ptr++; /* skip ] */
if (*ptr == QSE_T('\0'))
{
/* no more segments */
return 1;
}
else if (*ptr != QSE_T('.')) goto inval;
}
else if (*ptr == QSE_T('{'))
{
/* word index - alias */
qse_cstr_t idx;
ptr++; /* skip { */
idx.ptr = ptr;
while (*ptr != QSE_T('}') && *ptr != QSE_T('\0')) ptr++;
idx.len = ptr - idx.ptr;
if (*ptr != QSE_T('}') || idx.len == 0) goto inval;
pair = find_pair_by_key_and_alias (xli, curlist, &seg, &idx);
if (pair == QSE_NULL)
{
seg.len += idx.len + 2; /* adjustment for error message */
goto noent;
}
ptr++; /* skip } */
if (*ptr == QSE_T('\0'))
{
/* no more segments */
return 1;
}
else if (*ptr != QSE_T('.')) goto inval;
}
else
{
pair = find_pair_by_key_and_alias (xli, curlist, &seg, QSE_NULL);
if (pair == QSE_NULL) goto noent;
if (*ptr == QSE_T('\0'))
{
return count_pairs_by_key_and_alias (xli, curlist, &seg, QSE_NULL);
}
else
{
pair = find_pair_by_key_and_alias (xli, curlist, &seg, QSE_NULL);
if (pair == QSE_NULL) goto noent; if (pair == QSE_NULL) goto noent;
} break;
case FQPN_SEG_IDX_NUMBER:
pair = find_pair_by_key_and_index (xli, curlist, &seg.key, seg.idx.number);
if (pair == QSE_NULL) goto noent;
if (*ptr == QSE_T('\0')) return 1;
break;
default: /*case FQPN_SEG_IDX_ALIAS:*/
pair = find_pair_by_key_and_alias (xli, curlist, &seg.key, &seg.idx.alias);
if (pair == QSE_NULL) goto noent;
if (*ptr == QSE_T('\0')) return 1;
break;
} }
/* more segments to handle */ /* more segments to handle */
QSE_ASSERT (*ptr == QSE_T('.')); QSE_ASSERT (*ptr == QSE_T('.'));
ptr++; ptr++; /* skip . */
/* switch to the value regardless of its type. /* switch to the value regardless of its type.
* check if it is a list in the beginning of the loop * check if it is a list in the beginning of the loop
* just after having gotten the next segment name */ * just after having gotten the next segment alias */
curlist = (qse_xli_list_t*)pair->val; curlist = (qse_xli_list_t*)pair->val;
} }
@ -714,15 +751,12 @@ qse_size_t qse_xli_getnumpairs (qse_xli_t* xli, const qse_xli_list_t* list, cons
qse_xli_seterrnum (xli, QSE_XLI_EINTERN, QSE_NULL); qse_xli_seterrnum (xli, QSE_XLI_EINTERN, QSE_NULL);
return 0; return 0;
inval:
qse_xli_seterrnum (xli, QSE_XLI_EINVAL, QSE_NULL);
return 0;
noent: noent:
qse_xli_seterrnum (xli, QSE_XLI_ENOENT, &seg); qse_xli_seterrnum (xli, QSE_XLI_ENOENT, &seg.ki);
return 0; return 0;
} }
qse_xli_str_t* qse_xli_addsegtostr ( qse_xli_str_t* qse_xli_addsegtostr (
qse_xli_t* xli, qse_xli_str_t* str, const qse_cstr_t* value) qse_xli_t* xli, qse_xli_str_t* str, const qse_cstr_t* value)
{ {
@ -759,18 +793,22 @@ qse_char_t* qse_xli_dupflatstr (qse_xli_t* xli, qse_xli_str_t* str, qse_size_t*
} }
tmp[x] = QSE_T('\0'); tmp[x] = QSE_T('\0');
if (len) *len = x; if (len) *len = x; /* the length of the flattened string */
if (nsegs) *nsegs = y; if (nsegs) *nsegs = y; /* the number of string segments used for flattening */
return tmp; return tmp;
} }
/* ------------------------------------------------------ */ /* ------------------------------------------------------ */
int qse_xli_definepair (qse_xli_t* xli, const qse_char_t* pair_name, const qse_xli_scm_t* scm) int qse_xli_definepair (qse_xli_t* xli, const qse_char_t* fqpn, const qse_xli_scm_t* scm)
{ {
int tmp; int tmp;
/* the fully qualified pair name for this function must not contain an index or
* an alias. it is so because the definition contains information on key duplicability
* and whether to allow an alias */
tmp = scm->flags & (QSE_XLI_SCM_VALLIST | QSE_XLI_SCM_VALSTR | QSE_XLI_SCM_VALNIL); tmp = scm->flags & (QSE_XLI_SCM_VALLIST | QSE_XLI_SCM_VALSTR | QSE_XLI_SCM_VALNIL);
if (tmp != QSE_XLI_SCM_VALLIST && tmp != QSE_XLI_SCM_VALSTR && tmp != QSE_XLI_SCM_VALNIL) if (tmp != QSE_XLI_SCM_VALLIST && tmp != QSE_XLI_SCM_VALSTR && tmp != QSE_XLI_SCM_VALNIL)
{ {
@ -779,7 +817,7 @@ int qse_xli_definepair (qse_xli_t* xli, const qse_char_t* pair_name, const qse_x
return -1; return -1;
} }
if (qse_rbt_upsert (xli->schema, pair_name, qse_strlen(pair_name), scm, QSE_SIZEOF(*scm)) == QSE_NULL) if (qse_rbt_upsert (xli->schema, fqpn, qse_strlen(fqpn), scm, QSE_SIZEOF(*scm)) == QSE_NULL)
{ {
qse_xli_seterrnum (xli, QSE_XLI_ENOMEM, QSE_NULL); qse_xli_seterrnum (xli, QSE_XLI_ENOMEM, QSE_NULL);
return -1; return -1;
@ -788,12 +826,12 @@ int qse_xli_definepair (qse_xli_t* xli, const qse_char_t* pair_name, const qse_x
return 0; return 0;
} }
int qse_xli_undefinepair (qse_xli_t* xli, const qse_char_t* pair_name) int qse_xli_undefinepair (qse_xli_t* xli, const qse_char_t* fqpn)
{ {
if (qse_rbt_delete (xli->schema, pair_name, qse_strlen(pair_name)) <= -1) if (qse_rbt_delete (xli->schema, fqpn, qse_strlen(fqpn)) <= -1)
{ {
qse_cstr_t ea; qse_cstr_t ea;
ea.ptr = pair_name; ea.ptr = fqpn;
ea.len = qse_strlen (ea.ptr); ea.len = qse_strlen (ea.ptr);
qse_xli_seterrnum (xli, QSE_XLI_ENOENT, &ea); qse_xli_seterrnum (xli, QSE_XLI_ENOENT, &ea);
return -1; return -1;
@ -806,3 +844,93 @@ void qse_xli_undefinepairs (qse_xli_t* xli)
{ {
qse_rbt_clear (xli->schema); qse_rbt_clear (xli->schema);
} }
#if 0
qse_xli_pair_t* qse_xli_getpair (qse_xli_t* xli, const qse_char_t* fqpn)
{
return qse_xli_findpair (xli, &xli->root, fqpn);
}
qse_xli_pair_t* qse_xli_setpair (qse_xli_t* xli, const qse_char_t* fqpn, const qse_xli_val_t* val) -> str, val, nil
{
const qse_char_t* ptr;
const qse_xli_list_t* curlist;
fqpn_seg_t seg;
curlist = list? list: &xli->root;
ptr = fqpn;
while (1)
{
qse_xli_pair_t* pair;
ptr = get_next_fqpn_segment (xli, ptr, &seg);
if (ptr == QSE_NULL) return QSE_NULL;
if (curlist->type != QSE_XLI_LIST)
{
/* for example, the second segment y in a FQPN "x.y.z" may be found.
* however the value for it is not a list. i can't force insert a new
* pair 'z' under a non-list atom */
goto noent;
}
switch (seg.idxtype)
{
case FQPN_SEG_IDX_NONE:
pair = find_pair_by_key_and_alias (xli, curlist, &seg.key, QSE_NULL);
break;
case FQPN_SEG_IDX_NUMBER:
pair = find_pair_by_key_and_index (xli, curlist, &seg.key, seg.idx.number);
break;
case FQPN_SEG_IDX_ALIAS:
pair = find_pair_by_key_and_alias (xli, curlist, &seg.key, &seg.idx.alias);
break;
}
if (pair == QSE_NULL)
{
/* insert a new item..... */
if (*ptr == QSE_T('\0'))
{
/* append according to the value */
pair = insert_pair (xli, curlist, QSE_NULL, &seg.key, ((seg.idxtype == FQPN_SEG_IDX_ALIAS)? &seg.idx.alias: QSE_NULL), val);
}
else
{
/* this is not the last segment. insert an empty list */
/* seg.key, seg.alias */
pair = insert_pair_with_empty_list (xli, curlist, QSE_NULL, key, alias);
}
if (pair == QSE_NULL) return QSE_NULL;
}
if (*ptr == QSE_T('\0'))
{
/* no more segment. and the final match is found.
* update the pair with a new value */
}
/* more segments to handle */
QSE_ASSERT (*ptr == QSE_T('.'));
ptr++; /* skip . */
/* switch to the value regardless of its type.
* check if it is a list in the beginning of the loop
* just after having gotten the next segment alias */
curlist = (qse_xli_list_t*)pair->val;
}
/* this part must never be reached */
qse_xli_seterrnum (xli, QSE_XLI_EINTERN, QSE_NULL);
return QSE_NULL;
noent:
qse_xli_seterrnum (xli, QSE_XLI_ENOENT, &seg.ki);
return QSE_NULL;
}
#endif