mirror of
https://git.notmuchmail.org/git/notmuch
synced 2024-12-22 09:24:54 +01:00
100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
#ifndef _STRING_UTIL_H
|
|
#define _STRING_UTIL_H
|
|
|
|
#include <string.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* like strtok(3), but without state, and doesn't modify s. Return
|
|
* value is indicated by pointer and length, not null terminator.
|
|
*
|
|
* Usage pattern:
|
|
*
|
|
* const char *tok = input;
|
|
* const char *delim = " \t";
|
|
* size_t tok_len = 0;
|
|
*
|
|
* while ((tok = strtok_len (tok + tok_len, delim, &tok_len)) != NULL) {
|
|
* // do stuff with string tok of length tok_len
|
|
* }
|
|
*/
|
|
|
|
char *strtok_len (char *s, const char *delim, size_t *len);
|
|
|
|
/* Const version of strtok_len. */
|
|
const char *strtok_len_c (const char *s, const char *delim, size_t *len);
|
|
|
|
/* Simplified version of strtok_len, with a single delimiter.
|
|
* Handles escaping delimiters with \
|
|
* Usage pattern:
|
|
*
|
|
* const char *tok = input;
|
|
* const char *delim = ';';
|
|
* size_t tok_len = 0;
|
|
*
|
|
* while ((tok = strsplit_len (tok + tok_len, delim, &tok_len)) != NULL) {
|
|
* // do stuff with string tok of length tok_len
|
|
* }
|
|
*/
|
|
const char *strsplit_len (const char *s, char delim, size_t *len);
|
|
|
|
/* Return a talloced string with str sanitized.
|
|
*
|
|
* Whitespace characters (tabs and newlines) are replaced with spaces,
|
|
* non-printable characters with question marks.
|
|
*/
|
|
char *sanitize_string (const void *ctx, const char *str);
|
|
|
|
/* Construct a boolean term query with the specified prefix (e.g.,
|
|
* "id") and search term, quoting term as necessary. Specifically, if
|
|
* term contains any non-printable ASCII characters, non-ASCII
|
|
* characters, close parenthesis or double quotes, it will be enclosed
|
|
* in double quotes and any internal double quotes will be doubled
|
|
* (e.g. a"b -> "a""b"). The result will be a valid notmuch query and
|
|
* can be parsed by parse_boolean_term.
|
|
*
|
|
* Output is into buf; it may be talloc_realloced.
|
|
* Return: 0 on success, -1 on error. errno will be set to ENOMEM if
|
|
* there is an allocation failure.
|
|
*/
|
|
int make_boolean_term (void *talloc_ctx, const char *prefix, const char *term,
|
|
char **buf, size_t *len);
|
|
|
|
/* Parse a boolean term query consisting of a prefix, a colon, and a
|
|
* term that may be quoted as described for make_boolean_term. If the
|
|
* term is not quoted, then it ends at the first whitespace or close
|
|
* parenthesis. str may containing leading or trailing whitespace,
|
|
* but anything else is considered a parse error. This is compatible
|
|
* with anything produced by make_boolean_term, and supports a subset
|
|
* of the quoting styles supported by Xapian (and hence notmuch).
|
|
* *prefix_out and *term_out will be talloc'd with context ctx.
|
|
*
|
|
* Return: 0 on success, -1 on error. errno will be set to EINVAL if
|
|
* there is a parse error or ENOMEM if there is an allocation failure.
|
|
*/
|
|
int
|
|
parse_boolean_term (void *ctx, const char *str,
|
|
char **prefix_out, char **term_out);
|
|
|
|
/* strcmp that handles NULL strings; in strcmp terms a NULL string is
|
|
* considered to be less than a non-NULL string.
|
|
*/
|
|
int strcmp_null (const char *s1, const char *s2);
|
|
|
|
/* GLib GEqualFunc compatible strcasecmp wrapper */
|
|
int strcase_equal (const void *a, const void *b);
|
|
|
|
/* GLib GHashFunc compatible case insensitive hash function */
|
|
unsigned int strcase_hash (const void *ptr);
|
|
|
|
void strip_trailing (char *str, char ch);
|
|
|
|
const char *skip_space (const char *str);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|