On Thu, 23 Feb 2012, jonetsu wrote:
> /* Loop for second and subsequent matches */
> for (;;)
> {
>
> [ snip ]
>
> // Added bit:
>
> (void)pcre_fullinfo(
> re,
> NULL,
> PCRE_INFO_NAMETABLE,
> &name_table);
>
> // Back to original code:
>
> if (namecount <= 0) printf("No named substrings\n"); else
> {
> unsigned char *tabptr = name_table;
> printf("Named substrings\n");
> for (i = 0; i < namecount; i++)
> {
> int n = (tabptr[0] << 8) | tabptr[1];
Which version of PCRE are you using? That code does not agree with the
latest version of pcredemo, which reads as follows:
(void)pcre_fullinfo(
re, /* the compiled pattern */
NULL, /* no extra data - we didn't study the pattern */
PCRE_INFO_NAMECOUNT, /* number of named substrings */
&namecount); /* where to put the answer */
if (namecount <= 0) printf("No named substrings\n"); else
{
unsigned char *tabptr;
printf("Named substrings\n");
/* Before we can access the substrings, we must extract the table for
translating names to numbers, and the size of each entry in the table. */
(void)pcre_fullinfo(
re, /* the compiled pattern */
NULL, /* no extra data - we didn't study the pattern */
PCRE_INFO_NAMETABLE, /* address of the table */
&name_table); /* where to put the answer */
(void)pcre_fullinfo(
re, /* the compiled pattern */
NULL, /* no extra data - we didn't study the pattern */
PCRE_INFO_NAMEENTRYSIZE, /* size of each entry in the table */
&name_entry_size); /* where to put the answer */
/* Now we can scan the table and, for each entry, print the number, the name,
and the substring itself. */
In other words, the code you suggest is already present. And indeed,
your example does not crash when I test it.
Philip
--
Philip Hazel
