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<PRE>
<!-- Manpage converted by man2html 3.0.1 -->
NAME
lAddElemStr, lDelElemStr, lGetElemStr - list operations
lAddSubStr, lDelSubStr, lGetSubStr - sub-list operations
SYNOPSIS
#include "cull.h"
lListElem* lAddElemStr(
lList** lpp,
int nm,
char *s,
lDescr *dp
);
int lDelElemStr(
lList** lpp,
int nm,
char *s
);
lListElem *lGetElemStr(
lList* lp,
int nm,
char *s
);
lListElem* lAddSubStr(
lListElem* ep,
int nm,
char *s,
B
int snm,
lDescr *dp
);
int lDelSubStr(
lListElem* ep,
int nm,
char *s,
int snm
);
lListElem *lGetSubStr(
lListElem* ep,
int nm,
char *s,
int snm
);
lListElem *lDiffListStr(
int nm,
lList** lpp1,
lList** lpp1,
);
DESCRIPTION
lListElem *lAddElemStr(lpp, nm, s, dp)
Appends an element to the list *lpp. The new element
gets the type dp (using <B><A HREF="../htmlman3/lCreateElem.html">lCreateElem(3)</A></B>). Field nm of
the new elements gets the value s (using <I>lSet-</I>
<B><A HREF="../htmlman3/String.html">String(3)</A></B>). No test are made to ensure uniqueness of
elements in the list. If *lpp is NULL a new list head
gets created (using <B><A HREF="../htmlman3/lCreateList.html">lCreateList(3)</A></B>). lAddElemStr()
fails if the given list or descriptor has no field nm.
int lDelElemStr(lpp, nm, s)
Removes one element containing s at field nm in the
list *lpp. <I>lGetElemStr</I> is used to find the element. It
gets unchained and freed. If no more elements are in
the list after unchaining the list head gets freed and
NULL is written to *lpp. <I>lDelElemStr</I> fails if the
given list has no field nm.
lListElem *lGetElemStr(lp, nm, s)
Searches the first element containing s at field nm in
the list lp. <B><A HREF="../htmlman3/strcmp.html">strcmp(3)</A></B> s used to perform the compare.
<I>lGetElemStr</I> returns the element.
lListElem *lAddSubStr(ep, nm, s, snm, dp)
Uses <I>lAddElemStr</I> to append an element to the sub-list
field snm of the element ep.
int lDelSubStr(ep, nm, s, snm)
Uses <I>lDelElemStr</I> to remove an element from the sub-list
field snm of the element ep.
lListElem *lGetSubStr(ep, nm, s, snm)
Uses <I>lGetElemStr</I> to find an element in the sub-list
field snm of the element ep.
int lDiffListStr(nm, lpp1, lpp2)
<I>lDiffListStr</I> removes and frees elements in <I>both</I> lists
with the same string key in field nm.
EXAMPLES
The first example shows the usage of list functions:
=======================================================================
#include "cull.h"
f()
{
lList *lp = NULL;
lListElem *ep;
/* add a queue element where QU_qname is "balin.q" to the list lp */
if (!(ep=lAddElemStr(&lp, QU_qname, "balin.q", QU_Type))) {
/* ... */
}
lSetString(ep, QU_qhostname, "balin.mydomain");
/* get the element of lp where QU_qname is "balin.q" */
if (!(ep=lGetElemStr(lp, QU_qname, "balin.q"))) {
/* ... */
}
/* remove the element of lp where QU_qname is "balin.q" */
if (!lDelElemStr(&lp, QU_qname, "balin.q")) {
/* ... */
}
/* here lp will be NULL again */
return;
}
=======================================================================
The second example shows the usage of sub-list functions:
=======================================================================
#include "cull.h"
g(queue)
lListElem *queue;
{
lListElem *ep;
/* add an owner element with OW_name "bill" to the */
/* sub-list QU_ownerlist of the element ep */
ep = lAddSubStr(ep, OW_name, "bill", QU_ownerlist, OW_Type);
if ( !ep ) {
/* ... */
}
lSetString(ep, OW_permissions, "everything");
/* get the element in the sub-list QU_ownerlist of */
/* the element ep where OW_name is "bill" */
if (!(ep=lGetSubStr(ep, OW_name, "bill", QU_ownerlist))) {
/* ... */
}
printf("Owner: %s0, lGetString(ep, OW_name));
/* remove the element in the sub-list of element ep */
/* where OW_name is "bill" */
if (!lDelSubStr(ep, OW_name, "bill", QU_ownerlist)) {
/* ... */
}
return;
}
=======================================================================
RETURN VALUES
<I>lAddElemStr</I> and <I>lAddSubStr</I> return a pointer to the added
list element or NULL on error. <I>lDelElemStr</I> and <I>lDelSubStr</I>
return 1 on success and 0 on error. <I>lGetElemStr</I> and <I>lGet-</I>
<I>SubStr</I> return a pointer to the found list element or NULL on
error. <I>lDiffListStr</I> returns 0 on success and -1 on error.
SEE ALSO
<B><A HREF="../htmlman1/sge_intro.html">sge_intro(1)</A></B>, <B><A HREF="../htmlman3/list_intro.html">list_intro(3)</A></B>, <B><A HREF="../htmlman3/lSetString.html">lSetString(3)</A></B>, <B><A HREF="../htmlman3/lGetString.html">lGetString(3)</A></B>,
<B><A HREF="../htmlman3/lAppendElem.html">lAppendElem(3)</A></B>, <B><A HREF="../htmlman3/lDechainElem.html">lDechainElem(3)</A></B>, <B><A HREF="../htmlman3/lCreateElem.html">lCreateElem(3)</A></B>, <I>lCreateL-</I>
<B><A HREF="../htmlman3/ist.html">ist(3)</A></B>.
COPYRIGHT
See <B><A HREF="../htmlman1/sge_intro.html">sge_intro(1)</A></B> for a full statement of rights and permis-
sions.
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