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anon 2023-09-26 16:18:38 +02:00
parent 99127233db
commit e4106e1a69
1 changed files with 31 additions and 25 deletions
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README.md
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@ -9,20 +9,26 @@ match_t * regex_match(const regex_t * const regex, const char * const string, co
```
Returns a sentinel terminated array of `match_t` objects.
The sentinel object is defined as `(match_t){ .position = -1, .width = -1, };`.
The position and width of non-sentinel `match_t`s is guaranteed to be => 0.
```C
bool is_sentinel(const match_t * const match);
```
This is the function you must check whether a `match_t` is a sentinel or not.
I.e. make this the break condition while looping the results.
| Symbol | Meaning (TODO: fill in) |
| :----: | :---------------------: |
| . | |
| = | |
| + | |
| * | |
| ? | |
| \\< | |
| \\> | |
| ^ | |
| \t | |
| \n | |
| ? | One or zero of the previous token |
| = | Same as ? |
| * | Any number of the previous token |
| + | One or more of the previous token |
| \\< | Start of word |
| \\> | End of word |
| ^ | Start of string |
| \t | Tab |
| \n | New line |
| \b | |
| \i | |
| \I | |
@ -33,19 +39,19 @@ The position and width of non-sentinel `match_t`s is guaranteed to be => 0.
| \p | |
| \P | |
| \s | |
| \d | |
| \D | |
| \x | |
| \X | |
| \o | |
| \O | |
| \w | |
| \W | |
| \d | Digit char |
| \D | Not digit char |
| \x | Hex char|
| \X | Not hex char |
| \o | Octal char |
| \O | Not octal char |
| \w | Word char|
| \W | Not word char|
| \h | |
| \a | |
| \l | |
| \L | |
| \u | |
| \U | |
| [\<range\>] | |
| [\^\<range\>] | |
| \a | Ascii letter |
| \l | Lowercase ascii letter |
| \L | Not (lowercase ascii letter) |
| \u | Uppercase ascii letter |
| \U | Not (uppercase ascii letter) |
| [\<range\>] | Any of \<range\> |
| [\^\<range\>] | None of \<range\> |