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[git/mingw/j6t.git] / quote.h
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1 #ifndef QUOTE_H
2 #define QUOTE_H
4 struct strbuf;
6 /* Help to copy the thing properly quoted for the shell safety.
7 * any single quote is replaced with '\'', any exclamation point
8 * is replaced with '\!', and the whole thing is enclosed in a
9 * single quote pair.
11 * For example, if you are passing the result to system() as an
12 * argument:
14 * sprintf(cmd, "foobar %s %s", sq_quote(arg0), sq_quote(arg1))
16 * would be appropriate. If the system() is going to call ssh to
17 * run the command on the other side:
19 * sprintf(cmd, "git-diff-tree %s %s", sq_quote(arg0), sq_quote(arg1));
20 * sprintf(rcmd, "ssh %s %s", sq_quote(host), sq_quote(cmd));
22 * Note that the above examples leak memory! Remember to free result from
23 * sq_quote() in a real application.
25 * sq_quote_buf() writes to an existing buffer of specified size; it
26 * will return the number of characters that would have been written
27 * excluding the final null regardless of the buffer size.
30 extern void sq_quote_buf(struct strbuf *, const char *src);
31 extern void sq_quote_argv(struct strbuf *, const char **argv, size_t maxlen);
33 /* This unwraps what sq_quote() produces in place, but returns
34 * NULL if the input does not look like what sq_quote would have
35 * produced.
37 extern char *sq_dequote(char *);
40 * Same as the above, but can be used to unwrap many arguments in the
41 * same string separated by space. Like sq_quote, it works in place,
42 * modifying arg and appending pointers into it to argv.
44 extern int sq_dequote_to_argv(char *arg, const char ***argv, int *nr, int *alloc);
47 * Same as above, but store the unquoted strings in an argv_array. We will
48 * still modify arg in place, but unlike sq_dequote_to_argv, the argv_array
49 * will duplicate and take ownership of the strings.
51 struct argv_array;
52 extern int sq_dequote_to_argv_array(char *arg, struct argv_array *);
54 extern int unquote_c_style(struct strbuf *, const char *quoted, const char **endp);
55 extern size_t quote_c_style(const char *name, struct strbuf *, FILE *, int no_dq);
56 extern void quote_two_c_style(struct strbuf *, const char *, const char *, int);
58 extern void write_name_quoted(const char *name, FILE *, int terminator);
59 extern void write_name_quoted_relative(const char *name, const char *prefix,
60 FILE *fp, int terminator);
62 /* quote path as relative to the given prefix */
63 extern char *quote_path_relative(const char *in, const char *prefix,
64 struct strbuf *out);
66 /* quoting as a string literal for other languages */
67 extern void perl_quote_buf(struct strbuf *sb, const char *src);
68 extern void python_quote_buf(struct strbuf *sb, const char *src);
69 extern void tcl_quote_buf(struct strbuf *sb, const char *src);
71 #endif