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Use a switch instead of successive if (strcmp()) statments.

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This commit is contained in:
Glenn L McGrath 2002-11-06 23:35:28 +00:00
parent 747381c602
commit 62d28828d6
1 changed files with 50 additions and 31 deletions
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81
archival/dpkg.c
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@ -502,10 +502,24 @@ void free_package(common_node_t *node)
}
}
/* returns the array number of the string */
static unsigned short compare_string_array(const char *string_array[], const char *key)
{
unsigned short i;
for (i = 0; string_array[i] != 0; i++) {
if (strcmp(string_array[i], key) == 0) {
break;
}
}
return(i);
}
unsigned int fill_package_struct(char *control_buffer)
{
common_node_t *new_node = (common_node_t *) xcalloc(1, sizeof(common_node_t));
const char *field_names[] = { "Package", "Version", "Pre-Depends", "Depends",
"Replaces", "Provides", "Conflicts", "Suggests", "Recommends", "Enhances", 0};
char *field_name;
char *field_value;
int field_start = 0;
@ -514,42 +528,47 @@ unsigned int fill_package_struct(char *control_buffer)
new_node->version = search_name_hashtable("unknown");
while (field_start < buffer_length) {
unsigned short field_num;
field_start += read_package_field(&control_buffer[field_start],
&field_name, &field_value);
if (field_name == NULL) {
goto fill_package_struct_cleanup; // Oh no, the dreaded goto statement !!
goto fill_package_struct_cleanup; /* Oh no, the dreaded goto statement ! */
}
if (strcmp(field_name, "Package") == 0) {
new_node->name = search_name_hashtable(field_value);
}
else if (strcmp(field_name, "Version") == 0) {
new_node->version = search_name_hashtable(field_value);
}
else if (strcmp(field_name, "Pre-Depends") == 0) {
add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
}
else if (strcmp(field_name, "Depends") == 0) {
add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
}
else if (strcmp(field_name, "Replaces") == 0) {
add_split_dependencies(new_node, field_value, EDGE_REPLACES);
}
else if (strcmp(field_name, "Provides") == 0) {
add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
}
else if (strcmp(field_name, "Conflicts") == 0) {
add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
}
else if (strcmp(field_name, "Suggests") == 0) {
add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
}
else if (strcmp(field_name, "Recommends") == 0) {
add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
}
else if (strcmp(field_name, "Enhances") == 0) {
add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
field_num = compare_string_array(field_names, field_name);
switch(field_num) {
case 0: /* Package */
new_node->name = search_name_hashtable(field_value);
break;
case 1: /* Version */
new_node->version = search_name_hashtable(field_value);
break;
case 2: /* Pre-Depends */
add_split_dependencies(new_node, field_value, EDGE_PRE_DEPENDS);
break;
case 3: /* Depends */
add_split_dependencies(new_node, field_value, EDGE_DEPENDS);
break;
case 4: /* Replaces */
add_split_dependencies(new_node, field_value, EDGE_REPLACES);
break;
case 5: /* Provides */
add_split_dependencies(new_node, field_value, EDGE_PROVIDES);
break;
case 6: /* Conflicts */
add_split_dependencies(new_node, field_value, EDGE_CONFLICTS);
break;
case 7: /* Suggests */
add_split_dependencies(new_node, field_value, EDGE_SUGGESTS);
break;
case 8: /* Recommends */
add_split_dependencies(new_node, field_value, EDGE_RECOMMENDS);
break;
case 9: /* Enhances */
add_split_dependencies(new_node, field_value, EDGE_ENHANCES);
break;
}
fill_package_struct_cleanup:
if (field_name) {