diff options
Diffstat (limited to 'tools/lib/h5tools_utils.c')
-rw-r--r-- | tools/lib/h5tools_utils.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/tools/lib/h5tools_utils.c b/tools/lib/h5tools_utils.c index 1f4345c..17609c7 100644 --- a/tools/lib/h5tools_utils.c +++ b/tools/lib/h5tools_utils.c @@ -162,6 +162,128 @@ help_ref_msg(FILE *output) } /*------------------------------------------------------------------------- + * Function: parse_hsize_list + * + * Purpose: Parse a list of comma or space separated integers and return + * them in a list. The string being passed into this function + * should be at the start of the list you want to parse. You are + * responsible for freeing the array returned from here. + * + * Lists in the so-called "terse" syntax are separated by + * semicolons (;). The lists themselves can be separated by + * either commas (,) or white spaces. + * + * Return: <none> + *------------------------------------------------------------------------- + */ +void +parse_hsize_list(const char *h_list, subset_d *d) +{ + hsize_t *p_list; + const char *ptr; + unsigned int size_count = 0; + unsigned int i = 0; + unsigned int last_digit = 0; + + if (!h_list || !*h_list || *h_list == ';') + return; + + H5TOOLS_START_DEBUG(" - h_list:%s", h_list); + /* count how many integers do we have */ + for (ptr = h_list; ptr && *ptr && *ptr != ';' && *ptr != ']'; ptr++) + if (HDisdigit(*ptr)) { + if (!last_digit) + /* the last read character wasn't a digit */ + size_count++; + + last_digit = 1; + } + else + last_digit = 0; + + if (size_count == 0) { + /* there aren't any integers to read */ + H5TOOLS_ENDDEBUG("No integers to read"); + return; + } + H5TOOLS_DEBUG("Number integers to read=%ld", size_count); + + /* allocate an array for the integers in the list */ + if ((p_list = (hsize_t *)HDcalloc(size_count, sizeof(hsize_t))) == NULL) + H5TOOLS_INFO("Unable to allocate space for subset data"); + + for (ptr = h_list; i < size_count && ptr && *ptr && *ptr != ';' && *ptr != ']'; ptr++) + if (HDisdigit(*ptr)) { + /* we should have an integer now */ + p_list[i++] = (hsize_t)HDstrtoull(ptr, NULL, 0); + + while (HDisdigit(*ptr)) + /* scroll to end of integer */ + ptr++; + } + d->data = p_list; + d->len = size_count; + H5TOOLS_ENDDEBUG(" "); +} + +/*------------------------------------------------------------------------- + * Function: parse_subset_params + * + * Purpose: Parse the so-called "terse" syntax for specifying subsetting parameters. + * + * Return: Success: struct subset_t object + * Failure: NULL + *------------------------------------------------------------------------- + */ +struct subset_t * +parse_subset_params(const char *dset) +{ + struct subset_t *s = NULL; + char *brace; + const char *q_dset; + + H5TOOLS_START_DEBUG(" - dset:%s", dset); + /* if dset name is quoted wait till after second quote to look for subset brackets */ + if (*dset == '"') + q_dset = HDstrchr(dset, '"'); + else + q_dset = dset; + if ((brace = HDstrrchr(q_dset, '[')) != NULL) { + *brace++ = '\0'; + + s = (struct subset_t *)HDcalloc(1, sizeof(struct subset_t)); + parse_hsize_list(brace, &s->start); + + while (*brace && *brace != ';') + brace++; + + if (*brace) + brace++; + + parse_hsize_list(brace, &s->stride); + + while (*brace && *brace != ';') + brace++; + + if (*brace) + brace++; + + parse_hsize_list(brace, &s->count); + + while (*brace && *brace != ';') + brace++; + + if (*brace) + brace++; + + parse_hsize_list(brace, &s->block); + } + H5TOOLS_ENDDEBUG(" "); + + return s; +} + +/*------------------------------------------------------------------------- * Function: get_option * * Purpose: Determine the command-line options a user specified. We can |