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Diffstat (limited to 'contrib/binutils/gas/sb.c')
-rw-r--r-- | contrib/binutils/gas/sb.c | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/contrib/binutils/gas/sb.c b/contrib/binutils/gas/sb.c deleted file mode 100644 index 6ec23fcdb923..000000000000 --- a/contrib/binutils/gas/sb.c +++ /dev/null @@ -1,289 +0,0 @@ -/* sb.c - string buffer manipulation routines - Copyright (C) 1994, 1995 Free Software Foundation, Inc. - - Written by Steve and Judy Chamberlain of Cygnus Support, - sac@cygnus.com - - This file is part of GAS, the GNU Assembler. - - GAS is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - GAS is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with GAS; see the file COPYING. If not, write to the Free - Software Foundation, 59 Temple Place - Suite 330, Boston, MA - 02111-1307, USA. */ - -#include "config.h" -#include <stdio.h> -#ifdef HAVE_STRING_H -#include <string.h> -#else -#include <strings.h> -#endif -#include "libiberty.h" -#include "sb.h" - -/* These routines are about manipulating strings. - - They are managed in things called `sb's which is an abbreviation - for string buffers. An sb has to be created, things can be glued - on to it, and at the end of it's life it should be freed. The - contents should never be pointed at whilst it is still growing, - since it could be moved at any time - - eg: - sb_new (&foo); - sb_grow... (&foo,...); - use foo->ptr[*]; - sb_kill (&foo); - -*/ - -#define dsize 5 - -static void sb_check PARAMS ((sb *, int)); - -/* Statistics of sb structures. */ - -int string_count[sb_max_power_two]; - -/* Free list of sb structures. */ - -static sb_list_vector free_list; - -/* initializes an sb. */ - -void -sb_build (ptr, size) - sb *ptr; - int size; -{ - /* see if we can find one to allocate */ - sb_element *e; - - if (size > sb_max_power_two) - abort (); - - e = free_list.size[size]; - if (!e) - { - /* nothing there, allocate one and stick into the free list */ - e = (sb_element *) xmalloc (sizeof (sb_element) + (1 << size)); - e->next = free_list.size[size]; - e->size = 1 << size; - free_list.size[size] = e; - string_count[size]++; - } - - /* remove from free list */ - - free_list.size[size] = e->next; - - /* copy into callers world */ - ptr->ptr = e->data; - ptr->pot = size; - ptr->len = 0; - ptr->item = e; -} - - -void -sb_new (ptr) - sb *ptr; -{ - sb_build (ptr, dsize); -} - -/* deallocate the sb at ptr */ - -void -sb_kill (ptr) - sb *ptr; -{ - /* return item to free list */ - ptr->item->next = free_list.size[ptr->pot]; - free_list.size[ptr->pot] = ptr->item; -} - -/* add the sb at s to the end of the sb at ptr */ - -void -sb_add_sb (ptr, s) - sb *ptr; - sb *s; -{ - sb_check (ptr, s->len); - memcpy (ptr->ptr + ptr->len, s->ptr, s->len); - ptr->len += s->len; -} - -/* make sure that the sb at ptr has room for another len characters, - and grow it if it doesn't. */ - -static void -sb_check (ptr, len) - sb *ptr; - int len; -{ - if (ptr->len + len >= 1 << ptr->pot) - { - sb tmp; - int pot = ptr->pot; - while (ptr->len + len >= 1 << pot) - pot++; - sb_build (&tmp, pot); - sb_add_sb (&tmp, ptr); - sb_kill (ptr); - *ptr = tmp; - } -} - -/* make the sb at ptr point back to the beginning. */ - -void -sb_reset (ptr) - sb *ptr; -{ - ptr->len = 0; -} - -/* add character c to the end of the sb at ptr. */ - -void -sb_add_char (ptr, c) - sb *ptr; - int c; -{ - sb_check (ptr, 1); - ptr->ptr[ptr->len++] = c; -} - -/* add null terminated string s to the end of sb at ptr. */ - -void -sb_add_string (ptr, s) - sb *ptr; - const char *s; -{ - int len = strlen (s); - sb_check (ptr, len); - memcpy (ptr->ptr + ptr->len, s, len); - ptr->len += len; -} - -/* add string at s of length len to sb at ptr */ - -void -sb_add_buffer (ptr, s, len) - sb *ptr; - const char *s; - int len; -{ - sb_check (ptr, len); - memcpy (ptr->ptr + ptr->len, s, len); - ptr->len += len; -} - -/* print the sb at ptr to the output file */ - -void -sb_print (outfile, ptr) - FILE *outfile; - sb *ptr; -{ - int i; - int nc = 0; - - for (i = 0; i < ptr->len; i++) - { - if (nc) - { - fprintf (outfile, ","); - } - fprintf (outfile, "%d", ptr->ptr[i]); - nc = 1; - } -} - -void -sb_print_at (outfile, idx, ptr) - FILE *outfile; - int idx; - sb *ptr; -{ - int i; - for (i = idx; i < ptr->len; i++) - putc (ptr->ptr[i], outfile); -} - -/* put a null at the end of the sb at in and return the start of the - string, so that it can be used as an arg to printf %s. */ - -char * -sb_name (in) - sb *in; -{ - /* stick a null on the end of the string */ - sb_add_char (in, 0); - return in->ptr; -} - -/* like sb_name, but don't include the null byte in the string. */ - -char * -sb_terminate (in) - sb *in; -{ - sb_add_char (in, 0); - --in->len; - return in->ptr; -} - -/* start at the index idx into the string in sb at ptr and skip - whitespace. return the index of the first non whitespace character */ - -int -sb_skip_white (idx, ptr) - int idx; - sb *ptr; -{ - while (idx < ptr->len - && (ptr->ptr[idx] == ' ' - || ptr->ptr[idx] == '\t')) - idx++; - return idx; -} - -/* start at the index idx into the sb at ptr. skips whitespace, - a comma and any following whitespace. returnes the index of the - next character. */ - -int -sb_skip_comma (idx, ptr) - int idx; - sb *ptr; -{ - while (idx < ptr->len - && (ptr->ptr[idx] == ' ' - || ptr->ptr[idx] == '\t')) - idx++; - - if (idx < ptr->len - && ptr->ptr[idx] == ',') - idx++; - - while (idx < ptr->len - && (ptr->ptr[idx] == ' ' - || ptr->ptr[idx] == '\t')) - idx++; - - return idx; -} |