projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 252b5132 | 1 | /* sb.h - header file for string buffer manipulation routines |
| 39a45edc | 2 | Copyright 1994, 1995, 2000, 2003, 2005, 2006, 2007, 2012 |
| aa820537 | 3 | Free Software Foundation, Inc. |
| 252b5132 RH |
4 | |
| 5 | Written by Steve and Judy Chamberlain of Cygnus Support, | |
| 6 | sac@cygnus.com | |
| 7 | ||
| 8 | This file is part of GAS, the GNU Assembler. | |
| 9 | ||
| 10 | GAS is free software; you can redistribute it and/or modify | |
| 11 | it under the terms of the GNU General Public License as published by | |
| ec2655a6 | 12 | the Free Software Foundation; either version 3, or (at your option) |
| 252b5132 RH |
13 | any later version. |
| 14 | ||
| 15 | GAS is distributed in the hope that it will be useful, | |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 18 | GNU General Public License for more details. | |
| 19 | ||
| 20 | You should have received a copy of the GNU General Public License | |
| 21 | along with GAS; see the file COPYING. If not, write to the Free | |
| 4b4da160 NC |
22 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
| 23 | 02110-1301, USA. */ | |
| 252b5132 RH |
24 | |
| 25 | #ifndef SB_H | |
| 26 | ||
| 27 | #define SB_H | |
| 28 | ||
| 93a9f991 | 29 | /* String blocks |
| 252b5132 RH |
30 | |
| 31 | I had a couple of choices when deciding upon this data structure. | |
| 32 | gas uses null terminated strings for all its internal work. This | |
| 33 | often means that parts of the program that want to examine | |
| 34 | substrings have to manipulate the data in the string to do the | |
| 35 | right thing (a common operation is to single out a bit of text by | |
| 36 | saving away the character after it, nulling it out, operating on | |
| 37 | the substring and then replacing the character which was under the | |
| 38 | null). This is a pain and I remember a load of problems that I had with | |
| 39 | code in gas which almost got this right. Also, it's harder to grow and | |
| 40 | allocate null terminated strings efficiently. | |
| 41 | ||
| 42 | Obstacks provide all the functionality needed, but are too | |
| 43 | complicated, hence the sb. | |
| 44 | ||
| 39a45edc | 45 | An sb is allocated by the caller. */ |
| 252b5132 | 46 | |
| 252b5132 | 47 | typedef struct sb |
| 93a9f991 NC |
48 | { |
| 49 | char *ptr; /* Points to the current block. */ | |
| 39a45edc AM |
50 | size_t len; /* How much is used. */ |
| 51 | size_t max; /* The maximum length. */ | |
| 93a9f991 | 52 | } |
| 252b5132 RH |
53 | sb; |
| 54 | ||
| 24361518 | 55 | extern void sb_new (sb *); |
| d2ae702c | 56 | extern void sb_build (sb *, size_t); |
| 24361518 KH |
57 | extern void sb_kill (sb *); |
| 58 | extern void sb_add_sb (sb *, sb *); | |
| c19d1205 | 59 | extern void sb_scrub_and_add_sb (sb *, sb *); |
| 24361518 | 60 | extern void sb_reset (sb *); |
| 39a45edc | 61 | extern void sb_add_char (sb *, size_t); |
| 24361518 | 62 | extern void sb_add_string (sb *, const char *); |
| 39a45edc | 63 | extern void sb_add_buffer (sb *, const char *, size_t); |
| 24361518 | 64 | extern char *sb_terminate (sb *); |
| 39a45edc AM |
65 | extern size_t sb_skip_white (size_t, sb *); |
| 66 | extern size_t sb_skip_comma (size_t, sb *); | |
| 252b5132 RH |
67 | |
| 68 | /* Actually in input-scrub.c. */ | |
| 24361518 | 69 | extern void input_scrub_include_sb (sb *, char *, int); |
| 252b5132 RH |
70 | |
| 71 | #endif /* SB_H */ |