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#include <pgf/pgf.h>
#include <pgf/data.h>
#include <pgf/expr.h>
#include <pgf/reader.h>
#include <pgf/linearizer.h>
#include <pgf/parser.h>
#include <gu/file.h>
#include <gu/string.h>
#include <gu/enum.h>
#include <stdio.h>
#include <math.h>
GU_DEFINE_TYPE(PgfExn, abstract, _);
PgfPGF*
pgf_read(const char* fpath,
GuPool* pool, GuExn* err)
{
FILE* infile = fopen(fpath, "rb");
if (infile == NULL) {
gu_raise_errno(err);
return NULL;
}
GuPool* tmp_pool = gu_new_pool();
// Create an input stream from the input file
GuIn* in = gu_file_in(infile, tmp_pool);
PgfReader* rdr = pgf_new_reader(in, pool, tmp_pool, err);
PgfPGF* pgf = pgf_read_pgf(rdr);
pgf_reader_done(rdr, pgf);
gu_pool_free(tmp_pool);
return pgf;
}
GuString
pgf_abstract_name(PgfPGF* pgf)
{
return pgf->abstract.name;
}
void
pgf_iter_languages(PgfPGF* pgf, GuMapItor* fn, GuExn* err)
{
gu_map_iter(pgf->concretes, fn, err);
}
PgfConcr*
pgf_get_language(PgfPGF* pgf, PgfCId lang)
{
return gu_map_get(pgf->concretes, lang, PgfConcr*);
}
GuString
pgf_concrete_name(PgfConcr* concr)
{
return concr->name;
}
void
pgf_iter_categories(PgfPGF* pgf, GuMapItor* fn, GuExn* err)
{
gu_map_iter(pgf->abstract.cats, fn, err);
}
PgfCId
pgf_start_cat(PgfPGF* pgf)
{
PgfLiteral lit =
gu_map_get(pgf->abstract.aflags, "startcat", PgfLiteral);
if (gu_variant_is_null(lit))
return "S";
GuVariantInfo i = gu_variant_open(lit);
switch (i.tag) {
case PGF_LITERAL_STR: {
PgfLiteralStr *lstr = (PgfLiteralStr *) i.data;
return lstr->val;
}
}
return "S";
}
GuString
pgf_language_code(PgfConcr* concr)
{
PgfLiteral lit =
gu_map_get(concr->cflags, "language", PgfLiteral);
if (gu_variant_is_null(lit))
return "";
GuVariantInfo i = gu_variant_open(lit);
switch (i.tag) {
case PGF_LITERAL_STR: {
PgfLiteralStr *lstr = (PgfLiteralStr *) i.data;
return lstr->val;
}
}
return "";
}
void
pgf_iter_functions(PgfPGF* pgf, GuMapItor* fn, GuExn* err)
{
gu_map_iter(pgf->abstract.funs, fn, err);
}
typedef struct {
GuMapItor fn;
PgfCId catname;
GuMapItor* client_fn;
} PgfFunByCatIter;
static void
pgf_filter_by_cat(GuMapItor* fn, const void* key, void* value, GuExn* err)
{
(void) (key && err);
PgfFunByCatIter* clo = (PgfFunByCatIter*) fn;
PgfAbsFun* absfun = *((PgfAbsFun**) value);
if (strcmp(absfun->type->cid, clo->catname) == 0) {
clo->client_fn->fn(clo->client_fn, absfun->name, NULL, err);
}
}
void
pgf_iter_functions_by_cat(PgfPGF* pgf, PgfCId catname,
GuMapItor* fn, GuExn* err)
{
PgfFunByCatIter clo = { { pgf_filter_by_cat }, catname, fn };
gu_map_iter(pgf->abstract.funs, &clo.fn, err);
}
PgfType*
pgf_function_type(PgfPGF* pgf, PgfCId funname)
{
PgfAbsFun* absfun =
gu_map_get(pgf->abstract.funs, funname, PgfAbsFun*);
if (absfun == NULL)
return NULL;
return absfun->type;
}
GuString
pgf_print_name(PgfConcr* concr, PgfCId id)
{
PgfCId name =
gu_map_get(concr->printnames, id, PgfCId);
if (*name == 0)
name = id;
return name;
}
bool
pgf_has_linearization(PgfConcr* concr, PgfCId id)
{
PgfCncOverloadMap* overl_table =
gu_map_get(concr->fun_indices, id, PgfCncOverloadMap*);
return (overl_table != NULL);
}
GuPool*
pgf_concr_get_pool(PgfConcr* concr)
{
GuPool* pool = concr->pool;
if (pool == NULL)
pool = gu_container(concr->abstr, PgfPGF, abstract)->pool;
return pool;
}
void
pgf_concr_add_literal(PgfConcr *concr, PgfCId cat,
PgfLiteralCallback* callback,
GuExn* err)
{
if (concr->cnccats == NULL ||
concr->callbacks == NULL) {
GuExnData* err_data = gu_raise(err, PgfExn);
if (err_data) {
err_data->data = "The concrete syntax is not loaded";
return;
}
}
PgfCncCat* cnccat =
gu_map_get(concr->cnccats, cat, PgfCncCat*);
if (cnccat == NULL)
return;
gu_map_put(concr->callbacks, cnccat,
PgfLiteralCallback*, callback);
}
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