aboutsummaryrefslogtreecommitdiff
path: root/src/wordsplit.h
blob: 5da725ac4a954f64766b83939523920f23c381de (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/* wordsplit - a word splitter
   Copyright (C) 2009, 2010, 2011 Sergey Poznyakoff

   This program 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 3 of the License, or (at your
   option) any later version.

   This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */

#ifndef __WORDSPLIT_H
#define __WORDSPLIT_H

#include <stddef.h>

struct wordsplit
{
  size_t ws_wordc;
  char **ws_wordv;
  size_t ws_offs;
  size_t ws_wordn;
  int ws_flags;
  const char *ws_delim;
  const char *ws_comment;
  void (*ws_alloc_die) (struct wordsplit *wsp);
  void (*ws_error) (const char *, ...)
		    __attribute__ ((__format__ (__printf__, 1, 2)));
  void (*ws_debug) (const char *, ...)
		    __attribute__ ((__format__ (__printf__, 1, 2)));
	
  const char **ws_env;
  const char *(*ws_getvar) (const char *, size_t, void *); 
  void *ws_closure;
  
  const char *ws_input;
  size_t ws_len;
  size_t ws_endp;
  int ws_errno;
  struct wordsplit_node *ws_head, *ws_tail;
};

/* Append  the words found to the array resulting from a previous
   call. */
#define WRDSF_APPEND            0x0000001
/* Insert we_offs initial NULLs in the array ws_wordv.
   (These are not counted in the returned ws_wordc.) */
#define WRDSF_DOOFFS            0x0000002
/* Don't do command substitution. Reserved for future use. */
#define WRDSF_NOCMD             0x0000004
/* The parameter p resulted from a previous call to
   wordsplit(), and wordsplit_free() was not called. Reuse the
   allocated storage. */
#define WRDSF_REUSE             0x0000008
/* Print errors */
#define WRDSF_SHOWERR           0x0000010
/* Consider it an error if an undefined shell variable
   is expanded. */
#define WRDSF_UNDEF             0x0000020

/* Don't do variable expansion. */
#define WRDSF_NOVAR             0x0000040
/* Abort on ENOMEM error */
#define WRDSF_ENOMEMABRT        0x0000080
/* Trim off any leading and trailind whitespace */
#define WRDSF_WS                0x0000100
/* Handle quotes and escape directives */
#define WRDSF_QUOTE             0x0000200
/* Replace each input sequence of repeated delimiters with a single
   delimiter */
#define WRDSF_SQUEEZE_DELIMS    0x0000400
/* Return delimiters */
#define WRDSF_RETURN_DELIMS     0x0000800
/* Treat sed expressions as words */
#define WRDSF_SED_EXPR          0x0001000
/* ws_delim field is initialized */
#define WRDSF_DELIM             0x0002000
/* ws_comment field is initialized */
#define WRDSF_COMMENT           0x0004000
/* ws_alloc_die field is initialized */
#define WRDSF_ALLOC_DIE         0x0008000
/* ws_error field is initialized */
#define WRDSF_ERROR             0x0010000
/* ws_debug field is initialized */
#define WRDSF_DEBUG             0x0020000
/* ws_env field is initialized */
#define WRDSF_ENV               0x0040000
/* ws_getvar field is initialized */
#define WRDSF_GETVAR            0x0080000
/* enable debugging */
#define WRDSF_SHOWDBG           0x0100000
/* Don't split input into words.  Useful for side effects. */
#define WRDSF_NOSPLIT           0x0200000
/* Keep undefined variables in place, instead of expanding them to
   empty string */
#define WRDSF_KEEPUNDEF         0x0400000
/* Warn about undefined variables */
#define WRDSF_WARNUNDEF         0x0800000
/* Handle C escapes */
#define WRDSF_CESCAPES          0x1000000

/* ws_closure is set */
#define WRDSF_CLOSURE           0x2000000
/* ws_env is a Key/Value environment, i.e. the value of a variable is
   stored in the element that follows its name. */
#define WRDSF_ENV_KV            0x4000000

#define WRDSF_DEFFLAGS	       \
  (WRDSF_NOVAR | WRDSF_NOCMD | \
   WRDSF_QUOTE | WRDSF_SQUEEZE_DELIMS | WRDSF_CESCAPES)

#define WRDSE_EOF        0
#define WRDSE_QUOTE      1
#define WRDSE_NOSPACE    2
#define WRDSE_NOSUPP     3
#define WRDSE_USAGE      4
#define WRDSE_CBRACE     5
#define WRDSE_UNDEF      6

int wordsplit (const char *s, struct wordsplit *p, int flags);
int wordsplit_len (const char *s, size_t len,
		      struct wordsplit *p, int flags);
void wordsplit_free (struct wordsplit *p);
void wordsplit_free_words (struct wordsplit *ws);

int wordsplit_c_unquote_char (int c);
int wordsplit_c_quote_char (int c);
size_t wordsplit_c_quoted_length (const char *str, int quote_hex,
				     int *quote);
void wordsplit_sh_unquote_copy (char *dst, const char *src, size_t n);
void wordsplit_c_unquote_copy (char *dst, const char *src, size_t n);
void wordsplit_c_quote_copy (char *dst, const char *src, int quote_hex);

void wordsplit_perror (struct wordsplit *ws);
const char *wordsplit_strerror (struct wordsplit *ws);


#endif

Return to:

Send suggestions and report system problems to the System administrator.