Oops, I should've used \e instead of \\ (see below). Please fix that :) Thanks, Alex On 10/17/20 3:27 PM, Alejandro Colomar wrote: > $ gcc -Wall -Wextra -Werror -pedantic regex.c -o regex > $ ./regex.3 > String = "1) John Driverhacker; > 2) John Doe; > 3) John Foo; > " > Matches: > #0: > offset = 25; length = 7 > substring = "John Do" > #1: > offset = 38; length = 8 > substring = "John Foo" > > Signed-off-by: Alejandro Colomar <colomar.6.4.3@xxxxxxxxx> > --- > > Hi Michael, > > Now it's much better :) > > Cheers, > > Alex > > man3/regex.3 | 42 +++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 42 insertions(+) > > diff --git a/man3/regex.3 b/man3/regex.3 > index 7c5132995..72e576cc6 100644 > --- a/man3/regex.3 > +++ b/man3/regex.3 > @@ -337,6 +337,48 @@ T} Thread safety MT-Safe > .TE > .SH CONFORMING TO > POSIX.1-2001, POSIX.1-2008. > +.SH EXAMPLES > +.EX > +#include <stdint.h> > +#include <stdio.h> > +#include <stdlib.h> > +#include <regex.h> > + > +#define ARRAY_SIZE(arr) (sizeof((arr)) / sizeof((arr)[0])) > + > +static const char *const str = > + "1) John Driverhacker;\en2) John Doe;\en3) John Foo;\en"; > +static const char *const re = "John.*o"; > + > +int main(void) > +{ > + static const char *s = str; > + regex_t regex; > + regmatch_t pmatch[1]; > + regoff_t off, len; > + > + if (regcomp(®ex, re, REG_NEWLINE)) > + exit(EXIT_FAILURE); > + > + printf("String = \\"%s\\"\en", str); Here (twice) > + printf("Matches:\en"); > + > + for (int i = 0; ; i++) { > + if (regexec(®ex, s, ARRAY_SIZE(pmatch), pmatch, 0)) > + break; > + > + off = pmatch[0].rm_so + (s \- str); > + len = pmatch[0].rm_eo \- pmatch[0].rm_so; > + printf("#%d:\en", i); > + printf("offset = %jd; length = %jd\en", (intmax_t) off, (intmax_t) len); > + printf("substring = \\"%.*s\\"\en", len, s + pmatch[0].rm_so); And here (twice again) > + > + s += pmatch[0].rm_eo; > + } > + > + exit(EXIT_SUCCESS); > +} > +.EE > .SH SEE ALSO > .BR grep (1), > .BR regex (7) >