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e448fed8e6
Add a new function that appends a string to a string_list without copying it. This can be used to pass ownership of an already-copied string to a string_list that has strdup_strings set. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
67 lines
2.6 KiB
C
67 lines
2.6 KiB
C
#ifndef STRING_LIST_H
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#define STRING_LIST_H
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struct string_list_item {
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char *string;
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void *util;
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};
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struct string_list {
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struct string_list_item *items;
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unsigned int nr, alloc;
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unsigned int strdup_strings:1;
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};
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#define STRING_LIST_INIT_NODUP { NULL, 0, 0, 0 }
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#define STRING_LIST_INIT_DUP { NULL, 0, 0, 1 }
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void print_string_list(const struct string_list *p, const char *text);
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void string_list_clear(struct string_list *list, int free_util);
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/* Use this function to call a custom clear function on each util pointer */
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/* The string associated with the util pointer is passed as the second argument */
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typedef void (*string_list_clear_func_t)(void *p, const char *str);
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void string_list_clear_func(struct string_list *list, string_list_clear_func_t clearfunc);
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/* Use this function or the macro below to iterate over each item */
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typedef int (*string_list_each_func_t)(struct string_list_item *, void *);
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int for_each_string_list(struct string_list *list,
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string_list_each_func_t, void *cb_data);
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#define for_each_string_list_item(item,list) \
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for (item = (list)->items; item < (list)->items + (list)->nr; ++item)
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/* Use these functions only on sorted lists: */
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int string_list_has_string(const struct string_list *list, const char *string);
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int string_list_find_insert_index(const struct string_list *list, const char *string,
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int negative_existing_index);
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struct string_list_item *string_list_insert(struct string_list *list, const char *string);
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struct string_list_item *string_list_insert_at_index(struct string_list *list,
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int insert_at, const char *string);
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struct string_list_item *string_list_lookup(struct string_list *list, const char *string);
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/* Use these functions only on unsorted lists: */
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/*
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* Add string to the end of list. If list->strdup_string is set, then
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* string is copied; otherwise the new string_list_entry refers to the
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* input string.
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*/
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struct string_list_item *string_list_append(struct string_list *list, const char *string);
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/*
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* Like string_list_append(), except string is never copied. When
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* list->strdup_strings is set, this function can be used to hand
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* ownership of a malloc()ed string to list without making an extra
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* copy.
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*/
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struct string_list_item *string_list_append_nodup(struct string_list *list, char *string);
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void sort_string_list(struct string_list *list);
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int unsorted_string_list_has_string(struct string_list *list, const char *string);
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struct string_list_item *unsorted_string_list_lookup(struct string_list *list,
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const char *string);
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void unsorted_string_list_delete_item(struct string_list *list, int i, int free_util);
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#endif /* STRING_LIST_H */
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