114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/* Some commonly-used VEC types.
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Copyright (C) 2012-2016 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "common-defs.h"
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#include "gdb_vecs.h"
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#include "host-defs.h"
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/* Call xfree for each element of CHAR_PTR_VEC and final VEC_free for
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CHAR_PTR_VEC itself.
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You must not modify CHAR_PTR_VEC after it got registered with this function
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by make_cleanup as the CHAR_PTR_VEC base address may change on its updates.
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Contrary to VEC_free this function does not (cannot) clear the pointer. */
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void
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free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec)
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{
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int ix;
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char *name;
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for (ix = 0; VEC_iterate (char_ptr, char_ptr_vec, ix, name); ++ix)
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xfree (name);
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VEC_free (char_ptr, char_ptr_vec);
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}
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/* Worker function to split character delimiter separated string of fields
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STR into a CHAR_PTR_VEC. */
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static void
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delim_string_to_char_ptr_vec_append (VEC (char_ptr) **vecp,
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const char *str, char delimiter)
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{
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do
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{
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size_t this_len;
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const char *next_field;
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char *this_field;
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next_field = strchr (str, delimiter);
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if (next_field == NULL)
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this_len = strlen (str);
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else
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{
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this_len = next_field - str;
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next_field++;
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}
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this_field = (char *) xmalloc (this_len + 1);
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memcpy (this_field, str, this_len);
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this_field[this_len] = '\0';
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VEC_safe_push (char_ptr, *vecp, this_field);
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str = next_field;
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}
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while (str != NULL);
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}
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/* Split STR, a list of DELIMITER-separated fields, into a CHAR_PTR_VEC.
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You may modify the returned strings.
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Read free_char_ptr_vec for its cleanup. */
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VEC (char_ptr) *
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delim_string_to_char_ptr_vec (const char *str, char delimiter)
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{
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VEC (char_ptr) *retval = NULL;
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delim_string_to_char_ptr_vec_append (&retval, str, delimiter);
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return retval;
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}
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/* Extended version of dirnames_to_char_ptr_vec - additionally if *VECP is
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non-NULL the new list elements from DIRNAMES are appended to the existing
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*VECP list of entries. *VECP address will be updated by this call. */
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void
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dirnames_to_char_ptr_vec_append (VEC (char_ptr) **vecp, const char *dirnames)
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{
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delim_string_to_char_ptr_vec_append (vecp, dirnames, DIRNAME_SEPARATOR);
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}
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/* Split DIRNAMES by DIRNAME_SEPARATOR delimiter and return a list of all the
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elements in their original order. For empty string ("") DIRNAMES return
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list of one empty string ("") element.
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You may modify the returned strings.
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Read free_char_ptr_vec for its cleanup. */
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VEC (char_ptr) *
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dirnames_to_char_ptr_vec (const char *dirnames)
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{
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VEC (char_ptr) *retval = NULL;
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dirnames_to_char_ptr_vec_append (&retval, dirnames);
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return retval;
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}
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