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This commit is contained in:
John Kerl 2015-10-19 10:43:46 -04:00
parent 2af0cef805
commit 1ae463fc29
1 changed files with 41 additions and 41 deletions
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82
c/mapping/mapper_reorder.c
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@ -23,47 +23,6 @@ mapper_setup_t mapper_reorder_setup = {
.pparse_func = mapper_reorder_parse_cli,
};
// ----------------------------------------------------------------
static sllv_t* mapper_reorder_process(lrec_t* pinrec, context_t* pctx, void* pvstate) {
mapper_reorder_state_t* pstate = (mapper_reorder_state_t*)pvstate;
if (pinrec != NULL) {
if (!pstate->put_at_end) {
// OK since the field-name list was reversed at construction time.
for (sllse_t* pe = pstate->pfield_name_list->phead; pe != NULL; pe = pe->pnext)
lrec_move_to_head(pinrec, pe->value);
} else {
for (sllse_t* pe = pstate->pfield_name_list->phead; pe != NULL; pe = pe->pnext)
lrec_move_to_tail(pinrec, pe->value);
}
return sllv_single(pinrec);
} else {
return sllv_single(NULL);
}
}
// ----------------------------------------------------------------
static void mapper_reorder_free(void* pvstate) {
mapper_reorder_state_t* pstate = (mapper_reorder_state_t*)pvstate;
if (pstate->pfield_name_list != NULL)
slls_free(pstate->pfield_name_list);
}
static mapper_t* mapper_reorder_alloc(slls_t* pfield_name_list, int put_at_end) {
mapper_t* pmapper = mlr_malloc_or_die(sizeof(mapper_t));
mapper_reorder_state_t* pstate = mlr_malloc_or_die(sizeof(mapper_reorder_state_t));
pstate->pfield_name_list = pfield_name_list;
pstate->put_at_end = put_at_end;
if (!put_at_end)
slls_reverse(pstate->pfield_name_list);
pmapper->pvstate = (void*)pstate;
pmapper->pprocess_func = mapper_reorder_process;
pmapper->pfree_func = mapper_reorder_free;
return pmapper;
}
// ----------------------------------------------------------------
static void mapper_reorder_usage(FILE* o, char* argv0, char* verb) {
fprintf(o, "Usage: %s %s [options]\n", argv0, verb);
@ -100,3 +59,44 @@ static mapper_t* mapper_reorder_parse_cli(int* pargi, int argc, char** argv) {
return mapper_reorder_alloc(pfield_name_list, put_at_end);
}
// ----------------------------------------------------------------
static mapper_t* mapper_reorder_alloc(slls_t* pfield_name_list, int put_at_end) {
mapper_t* pmapper = mlr_malloc_or_die(sizeof(mapper_t));
mapper_reorder_state_t* pstate = mlr_malloc_or_die(sizeof(mapper_reorder_state_t));
pstate->pfield_name_list = pfield_name_list;
pstate->put_at_end = put_at_end;
if (!put_at_end)
slls_reverse(pstate->pfield_name_list);
pmapper->pvstate = (void*)pstate;
pmapper->pprocess_func = mapper_reorder_process;
pmapper->pfree_func = mapper_reorder_free;
return pmapper;
}
static void mapper_reorder_free(void* pvstate) {
mapper_reorder_state_t* pstate = (mapper_reorder_state_t*)pvstate;
if (pstate->pfield_name_list != NULL)
slls_free(pstate->pfield_name_list);
}
// ----------------------------------------------------------------
static sllv_t* mapper_reorder_process(lrec_t* pinrec, context_t* pctx, void* pvstate) {
mapper_reorder_state_t* pstate = (mapper_reorder_state_t*)pvstate;
if (pinrec != NULL) {
if (!pstate->put_at_end) {
// OK since the field-name list was reversed at construction time.
for (sllse_t* pe = pstate->pfield_name_list->phead; pe != NULL; pe = pe->pnext)
lrec_move_to_head(pinrec, pe->value);
} else {
for (sllse_t* pe = pstate->pfield_name_list->phead; pe != NULL; pe = pe->pnext)
lrec_move_to_tail(pinrec, pe->value);
}
return sllv_single(pinrec);
} else {
return sllv_single(NULL);
}
}