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/*
* ion/mod_query/complete.c
*
* Copyright (c) Tuomo Valkonen 1999-2007.
*
* See the included file LICENSE for details.
*/
#include <string.h>
#include <ctype.h>
#include <string.h>
#include <limits.h>
#include <libtu/objp.h>
#include <ioncore/common.h>
#include "complete.h"
#include "edln.h"
#include "wedln.h"
/*{{{ Completion list processing */
static int str_common_part_l(const char *p1, const char *p2)
{
int i=0;
while(1){
if(*p1=='\0' || *p1!=*p2)
break;
p1++; p2++; i++;
}
return i;
}
/* Get length of part common to all completions
* and remove duplicates
*/
static int get_common_part_rmdup(char **completions, int *ncomp)
{
int i, j, c=INT_MAX, c2;
for(i=0, j=1; j<*ncomp; j++){
c2=str_common_part_l(completions[i], completions[j]);
if(c2<c)
c=c2;
if(completions[i][c2]=='\0' && completions[j][c2]=='\0'){
free(completions[j]);
completions[j]=NULL;
continue;
}
i++;
if(i!=j){
completions[i]=completions[j];
completions[j]=NULL;
}
}
*ncomp=i+1;
return c;
}
static int compare(const void *p1, const void *p2)
{
const char **v1, **v2;
v1=(const char **)p1;
v2=(const char **)p2;
return strcoll(*v1, *v2);
}
static void edln_reset(Edln *edln)
{
assert(edln->palloced>=1);
edln->p[0]='\0';
edln->psize=0;
edln->point=0;
edln->mark=-1;
edln->histent=-1;
}
static void edln_do_set_completion(Edln *edln, const char *comp, int len,
const char *beg, const char *end)
{
edln_reset(edln);
if(beg!=NULL)
edln_insstr_n(edln, beg, strlen(beg), FALSE, TRUE);
if(len>0)
edln_insstr_n(edln, comp, len, FALSE, TRUE);
if(end!=NULL)
edln_insstr_n(edln, end, strlen(end), FALSE, FALSE);
if(edln->ui_update!=NULL){
edln->ui_update(edln->uiptr, 0,
EDLN_UPDATE_MOVED|EDLN_UPDATE_CHANGED|
EDLN_UPDATE_NEW);
}
}
void edln_set_completion(Edln *edln, const char *comp,
const char *beg, const char *end)
{
edln_do_set_completion(edln, comp, strlen(comp), beg, end);
}
int edln_do_completions(Edln *edln, char **completions, int ncomp,
const char *beg, const char *end, bool setcommon,
bool nosort)
{
int len;
if(ncomp==0){
return 0;
}else if(ncomp==1){
len=strlen(completions[0]);
}else{
if(!nosort)
qsort(completions, ncomp, sizeof(char**), compare);
len=get_common_part_rmdup(completions, &ncomp);
}
if(setcommon)
edln_do_set_completion(edln, completions[0], len, beg, end);
return ncomp;
}
/*}}}*/
/*{{{ WComplProxy */
bool complproxy_init(WComplProxy *proxy, WEdln *wedln, int id, int cycle)
{
watch_init(&(proxy->wedln_watch));
if(!watch_setup(&(proxy->wedln_watch), (Obj*)wedln, NULL))
return FALSE;
proxy->id=id;
proxy->cycle=cycle;
return TRUE;
}
WComplProxy *create_complproxy(WEdln *wedln, int id, int cycle)
{
CREATEOBJ_IMPL(WComplProxy, complproxy, (p, wedln, id, cycle));
}
void complproxy_deinit(WComplProxy *proxy)
{
watch_reset(&(proxy->wedln_watch));
}
/*EXTL_DOC
* Set completion list of the \type{WEdln} that \var{proxy} refers to to
* \var{compls}, if it is still waiting for this completion run. The
* numerical indexes of \var{compls} list the found completions. If the
* entry \var{common_beg} (\var{common_end}) exists, it gives an extra
* common prefix (suffix) of all found completions.
*/
EXTL_EXPORT_MEMBER
bool complproxy_set_completions(WComplProxy *proxy, ExtlTab compls)
{
WEdln *wedln=(WEdln*)proxy->wedln_watch.obj;
if(wedln!=NULL){
if(wedln->compl_waiting_id==proxy->id){
wedln_set_completions(wedln, compls, proxy->cycle);
wedln->compl_current_id=proxy->id;
return TRUE;
}
}
return FALSE;
}
EXTL_EXPORT
IMPLCLASS(WComplProxy, Obj, complproxy_deinit, NULL);
/*}}}*/
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