summaryrefslogtreecommitdiff
path: root/quote.h
blob: 89f99e98fa666af0095ea91c779170bfa40fa910 (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
#ifndef QUOTE_H
#define QUOTE_H
 
struct strbuf;
 
/* Help to copy the thing properly quoted for the shell safety.
 * any single quote is replaced with '\'', any exclamation point
 * is replaced with '\!', and the whole thing is enclosed in a
 * single quote pair.
 *
 * For example, if you are passing the result to system() as an
 * argument:
 *
 * sprintf(cmd, "foobar %s %s", sq_quote(arg0), sq_quote(arg1))
 *
 * would be appropriate.  If the system() is going to call ssh to
 * run the command on the other side:
 *
 * sprintf(cmd, "git-diff-tree %s %s", sq_quote(arg0), sq_quote(arg1));
 * sprintf(rcmd, "ssh %s %s", sq_quote(host), sq_quote(cmd));
 *
 * Note that the above examples leak memory!  Remember to free result from
 * sq_quote() in a real application.
 *
 * sq_quote_buf() writes to an existing buffer of specified size; it
 * will return the number of characters that would have been written
 * excluding the final null regardless of the buffer size.
 *
 * sq_quotef() quotes the entire formatted string as a single result.
 */
 
void sq_quote_buf(struct strbuf *, const char *src);
void sq_quote_argv(struct strbuf *, const char **argv);
extern void sq_quotef(struct strbuf *, const char *fmt, ...);
 
/*
 * These match their non-pretty variants, except that they avoid
 * quoting when there are no exotic characters. These should only be used for
 * human-readable output, as sq_dequote() is not smart enough to dequote it.
 */
void sq_quote_buf_pretty(struct strbuf *, const char *src);
void sq_quote_argv_pretty(struct strbuf *, const char **argv);
 
/* This unwraps what sq_quote() produces in place, but returns
 * NULL if the input does not look like what sq_quote would have
 * produced.
 */
char *sq_dequote(char *);
 
/*
 * Same as the above, but can be used to unwrap many arguments in the
 * same string separated by space. Like sq_quote, it works in place,
 * modifying arg and appending pointers into it to argv.
 */
int sq_dequote_to_argv(char *arg, const char ***argv, int *nr, int *alloc);
 
/*
 * Same as above, but store the unquoted strings in an argv_array. We will
 * still modify arg in place, but unlike sq_dequote_to_argv, the argv_array
 * will duplicate and take ownership of the strings.
 */
struct argv_array;
int sq_dequote_to_argv_array(char *arg, struct argv_array *);
 
int unquote_c_style(struct strbuf *, const char *quoted, const char **endp);
size_t quote_c_style(const char *name, struct strbuf *, FILE *, int no_dq);
void quote_two_c_style(struct strbuf *, const char *, const char *, int);
 
void write_name_quoted(const char *name, FILE *, int terminator);
void write_name_quoted_relative(const char *name, const char *prefix,
		FILE *fp, int terminator);
 
/* quote path as relative to the given prefix */
char *quote_path_relative(const char *in, const char *prefix,
			  struct strbuf *out);
 
/* quoting as a string literal for other languages */
void perl_quote_buf(struct strbuf *sb, const char *src);
void python_quote_buf(struct strbuf *sb, const char *src);
void tcl_quote_buf(struct strbuf *sb, const char *src);
void basic_regex_quote_buf(struct strbuf *sb, const char *src);
 
#endif