188 lines
4.1 KiB
C
188 lines
4.1 KiB
C
/*
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* lists
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* architecture clients/serveur guinness
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* Thomas Nemeth -- le 15 juin 2001
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include "defines.h"
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#include "xmem.h"
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#include "lists.h"
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void add_elt (Elt **elt, const char *nom) {
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Elt *e;
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if (*elt == NULL) {
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*elt = xmalloc ((1) * sizeof (Elt));
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(*elt)->nom = xstrdup (nom);
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(*elt)->next = NULL;
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} else {
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e = *elt;
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while (e->next != NULL) e = e->next;
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e->next = xmalloc ((1) * sizeof (Elt));
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e = e->next;
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e->nom = xstrdup (nom);
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e->next = NULL;
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}
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}
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void remove_elt (Elt **elt, const char *nom) {
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Elt *e = *elt, *p = NULL;
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int res = FALSE;
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char *rt, *text ;
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do {
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if (e != NULL) {
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if ((rt = strstr (e->nom, SEP)) != NULL) {
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text = xmalloc (rt - e->nom + 2);
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memset (text, 0, rt - e->nom + 2);
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strncpy (text, e->nom, rt - e->nom);
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#ifdef DEBUG
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printf ("Comparaison (l) de [%s] avec [%s]\n", text, nom);
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#endif
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res = (strcmp (text, nom) == 0);
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free (text);
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} else {
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#ifdef DEBUG
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printf ("Comparaison (c) de [%s] avec [%s]\n", e->nom, nom);
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#endif
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res = (strcmp (e->nom, nom) == 0);
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}
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if (res == FALSE) {
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p = e;
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e = e->next;
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}
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}
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} while ( (e != NULL) && (res != TRUE) );
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if (e == NULL) return;
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if (e == *elt) *elt = e->next;
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if (p) p->next = e->next;
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free (e->nom);
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free (e);
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}
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void remove_elt_n (Elt **elt, int i) {
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Elt *e = *elt, *p = NULL;
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int n = 0;
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while ( (e != NULL) && (n != i) ) {
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n++;
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e = e->next;
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}
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if (e == NULL) return;
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if (e == *elt) *elt = e->next;
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if (p) p->next = e->next;
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free (e->nom);
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free (e);
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}
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int get_nb_elts (Elt *elt) {
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Elt *e = elt;
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int n = 0;
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while (e != NULL) {
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n++;
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e = e->next;
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}
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return n;
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}
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char *elt_number (Elt *elt, int i) {
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Elt *e = elt;
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int n = 0;
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while ( (e != NULL) && (n != i) ) {
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n++;
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e = e->next;
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}
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if (e == NULL) return NULL;
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return e->nom;
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}
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int exist_elt (Elt *elt, const char *nom) {
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Elt *e = elt;
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int res = FALSE;
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char *rt, *text ;
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do {
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if (e != NULL) {
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if ((rt = strstr (e->nom, SEP)) != NULL) {
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text = xmalloc (rt - e->nom + 2);
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memset (text, 0, rt - e->nom + 2);
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strncpy (text, e->nom, rt - e->nom);
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#ifdef DEBUG
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printf ("Comparaison (l) de [%s] avec [%s]\n", text, nom);
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#endif
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res = (strcmp (text, nom) == 0);
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free (text);
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} else {
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#ifdef DEBUG
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printf ("Comparaison (c) de [%s] avec [%s]\n", e->nom, nom);
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#endif
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res = (strcmp (e->nom, nom) == 0);
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}
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e = e->next;
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}
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} while ( (e != NULL) && (res != TRUE) );
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return res;
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}
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char *get_elt (Elt *elt, const char *nom) {
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Elt *e = elt;
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int res = FALSE;
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char *rt, *text ;
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do {
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if (e != NULL) {
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if ((rt = strstr (e->nom, SEP)) != NULL) {
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text = xmalloc (rt - e->nom + 2);
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memset (text, 0, rt - e->nom + 2);
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strncpy (text, e->nom, rt - e->nom);
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#ifdef DEBUG
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printf ("Comparaison (l) de [%s] avec [%s]\n", text, nom);
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#endif
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res = (strcmp (text, nom) == 0);
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free (text);
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} else {
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#ifdef DEBUG
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printf ("Comparaison (c) de [%s] avec [%s]\n", e->nom, nom);
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#endif
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res = (strcmp (e->nom, nom) == 0);
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}
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if (res == FALSE) e = e->next;
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}
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} while ( (e != NULL) && (res != TRUE) );
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if (e == NULL) return NULL;
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return e->nom;
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}
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void free_list (Elt **elt) {
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Elt *e = *elt, *p;
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while (e != NULL) {
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p = e;
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e = e->next;
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free (p->nom);
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free (p);
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}
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*elt = NULL;
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}
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