diff options
| -rw-r--r-- | gdb/ChangeLog | 11 | ||||
| -rw-r--r-- | gdb/utils.c | 77 | ||||
| -rw-r--r-- | gdb/utils.h | 19 |
3 files changed, 83 insertions, 24 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 8778cae..f1e21f1 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,16 @@ 2017-07-17 Pedro Alves <palves@redhat.com> + * utils.c (enum class strncmp_iw_mode): New. + (strcmp_iw): Rename to ... + (strncmp_iw_with_mode): ... this. Add string2_len and mode + parameters. Handle them. + (strncmp_iw): New. + (strcmp_iw): Reimplement as wrapper around strncmp_iw_with_mode. + * utils.h (strncmp_iw): Declare. + (strcmp_iw): Move describing comments here. + +2017-07-17 Pedro Alves <palves@redhat.com> + * c-exp.y (operator_stoken): Use CP_OPERATOR_LEN and CP_OPERATOR_STR. * c-typeprint.c (is_type_conversion_operator): Use diff --git a/gdb/utils.c b/gdb/utils.c index b66132a..43e1827 100644 --- a/gdb/utils.c +++ b/gdb/utils.c @@ -2363,41 +2363,72 @@ fprintf_symbol_filtered (struct ui_file *stream, const char *name, } } -/* Do a strcmp() type operation on STRING1 and STRING2, ignoring any - differences in whitespace. Returns 0 if they match, non-zero if they - don't (slightly different than strcmp()'s range of return values). +/* Modes of operation for strncmp_iw_with_mode. */ - As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". - This "feature" is useful when searching for matching C++ function names - (such as if the user types 'break FOO', where FOO is a mangled C++ - function). */ +enum class strncmp_iw_mode +{ + /* Work like strncmp, while ignoring whitespace. */ + NORMAL, -int -strcmp_iw (const char *string1, const char *string2) + /* Like NORMAL, but also apply the strcmp_iw hack. I.e., + string1=="FOO(PARAMS)" matches string2=="FOO". */ + MATCH_PARAMS, +}; + +/* Helper for strncmp_iw and strcmp_iw. */ + +static int +strncmp_iw_with_mode (const char *string1, const char *string2, + size_t string2_len, strncmp_iw_mode mode) { - while ((*string1 != '\0') && (*string2 != '\0')) + const char *end_str2 = string2 + string2_len; + + while (1) { while (isspace (*string1)) - { - string1++; - } - while (isspace (*string2)) - { - string2++; - } + string1++; + while (string2 < end_str2 && isspace (*string2)) + string2++; + if (*string1 == '\0' || string2 == end_str2) + break; if (case_sensitivity == case_sensitive_on && *string1 != *string2) break; if (case_sensitivity == case_sensitive_off && (tolower ((unsigned char) *string1) != tolower ((unsigned char) *string2))) break; - if (*string1 != '\0') - { - string1++; - string2++; - } + + string1++; + string2++; } - return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0'); + + if (string2 == end_str2) + { + if (mode == strncmp_iw_mode::NORMAL) + return 0; + else + return (*string1 != '\0' && *string1 != '('); + } + else + return 1; +} + +/* See utils.h. */ + +int +strncmp_iw (const char *string1, const char *string2, size_t string2_len) +{ + return strncmp_iw_with_mode (string1, string2, string2_len, + strncmp_iw_mode::NORMAL); +} + +/* See utils.h. */ + +int +strcmp_iw (const char *string1, const char *string2) +{ + return strncmp_iw_with_mode (string1, string2, strlen (string2), + strncmp_iw_mode::MATCH_PARAMS); } /* This is like strcmp except that it ignores whitespace and treats diff --git a/gdb/utils.h b/gdb/utils.h index 3347c23..6df752f 100644 --- a/gdb/utils.h +++ b/gdb/utils.h @@ -31,7 +31,24 @@ extern void initialize_utils (void); extern int sevenbit_strings; -extern int strcmp_iw (const char *, const char *); +/* Do a strncmp() type operation on STRING1 and STRING2, ignoring any + differences in whitespace. STRING2_LEN is STRING2's length. + Returns 0 if STRING1 matches STRING2_LEN characters of STRING2, + non-zero otherwise (slightly different than strncmp()'s range of + return values). */ +extern int strncmp_iw (const char *string1, const char *string2, + size_t string2_len); + +/* Do a strcmp() type operation on STRING1 and STRING2, ignoring any + differences in whitespace. Returns 0 if they match, non-zero if + they don't (slightly different than strcmp()'s range of return + values). + + As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". + This "feature" is useful when searching for matching C++ function + names (such as if the user types 'break FOO', where FOO is a + mangled C++ function). */ +extern int strcmp_iw (const char *string1, const char *string2); extern int strcmp_iw_ordered (const char *, const char *); |