diff options
Diffstat (limited to 'ext/misc/regexp.c')
| -rw-r--r-- | ext/misc/regexp.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/ext/misc/regexp.c b/ext/misc/regexp.c index cb39956da..16fa7d0b9 100644 --- a/ext/misc/regexp.c +++ b/ext/misc/regexp.c @@ -12,7 +12,16 @@ ** ** The code in this file implements a compact but reasonably ** efficient regular-expression matcher for posix extended regular -** expressions against UTF8 text. The following syntax is supported: +** expressions against UTF8 text. +** +** This file is an SQLite extension. It registers a single function +** named "regexp(A,B)" where A is the regular expression and B is the +** string to be matched. By registering this function, SQLite will also +** then implement the "B regexp A" operator. Note that with the function +** the regular expression comes first, but with the operator it comes +** second. +** +** The following regular expression syntax is supported: ** ** X* zero or more occurrences of X ** X+ one or more occurrences of X |