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#include <um.h>
#include <lib/sv.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
LL_IMPL_ADD(manifest, struct pair)
LL_IMPL_FREE(manifest)
struct um_context {
int in_manifest;
};
static struct um_context context;
static struct string_view manifest_sv = SV("MANIFEST");
struct parser_backend um_backend()
{
return (struct parser_backend) {
.on_block_start = um_block_start_cb,
.on_block_end = um_block_end_cb,
.on_kv = um_kv_cb,
.on_init = um_init
};
}
void um_init()
{
context.in_manifest = 0;
}
void um_block_start_cb(struct string_view *block, void *userdata)
{
assert(block != NULL);
assert(userdata != NULL);
if (sv_equal(&manifest_sv, block)) {
context.in_manifest = 1;
} else {
fprintf(stderr, "[UPSTREAM ERROR] Unknown block: %.*s\n",
(int)block->len, block->buf); // (unsafe)
exit(1);
}
printf("[UPSTREAM] Entered block %.*s.\n",
(int)block->len, block->buf);
}
void um_block_end_cb(struct string_view *block, void *userdata)
{
assert(block != NULL);
assert(userdata != NULL);
if (sv_equal(&manifest_sv, block)) {
context.in_manifest = 0;
} else {
fprintf(stderr, "[UPSTREAM ERROR] Unknown block: %.*s\n",
(int)block->len, block->buf); // (unsafe)
exit(1);
}
printf("[UPSTREAM] Left block %.*s.\n",
(int)block->len, block->buf);
}
void um_kv_cb(struct string_view *key,
struct string_view *value,
void *userdata)
{
assert(key != NULL);
assert(value != NULL);
assert(userdata != NULL);
if (context.in_manifest == 0) {
fprintf(stderr, "[UPSTREAM ERROR] You can only define packages inside a manifest block.\n");
}
struct um_user_data *user = (struct um_user_data*)userdata;
struct string_view ckey = sv_copy(key);
struct string_view cval = sv_copy(value);
ll_manifest_add(&user->manifest, (struct pair){.key = ckey, .value = cval});
}
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