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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 <gu/file.h>
#include <gu/string.h>
#include <gu/enum.h>
#include <stdio.h>
#include <math.h>
PGF_API 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);
fclose(infile);
return pgf;
}
PGF_API PgfPGF*
pgf_read_in(GuIn* in,
GuPool* pool, GuPool* tmp_pool, GuExn* err)
{
PgfReader* rdr = pgf_new_reader(in, pool, tmp_pool, err);
PgfPGF* pgf = pgf_read_pgf(rdr);
pgf_reader_done(rdr, pgf);
return pgf;
}
PGF_API GuString
pgf_abstract_name(PgfPGF* pgf)
{
return pgf->abstract.name;
}
PGF_API void
pgf_iter_languages(PgfPGF* pgf, GuMapItor* itor, GuExn* err)
{
size_t n_concrs = gu_seq_length(pgf->concretes);
for (size_t i = 0; i < n_concrs; i++) {
PgfConcr* concr = gu_seq_index(pgf->concretes, PgfConcr, i);
itor->fn(itor, concr->name, &concr, err);
if (!gu_ok(err))
break;
}
}
PGF_API PgfConcr*
pgf_get_language(PgfPGF* pgf, PgfCId lang)
{
return gu_seq_binsearch(pgf->concretes, pgf_concr_order, PgfConcr, lang);
}
PGF_API GuString
pgf_concrete_name(PgfConcr* concr)
{
return concr->name;
}
PGF_API void
pgf_iter_categories(PgfPGF* pgf, GuMapItor* itor, GuExn* err)
{
size_t n_cats = gu_seq_length(pgf->abstract.cats);
for (size_t i = 0; i < n_cats; i++) {
PgfAbsCat* cat = gu_seq_index(pgf->abstract.cats, PgfAbsCat, i);
itor->fn(itor, cat->name, &cat, err);
if (!gu_ok(err))
break;
}
}
PGF_API PgfType*
pgf_start_cat(PgfPGF* pgf, GuPool* pool)
{
PgfFlag* flag =
gu_seq_binsearch(pgf->abstract.aflags, pgf_flag_order, PgfFlag, "startcat");
if (flag != NULL) {
GuVariantInfo i = gu_variant_open(flag->value);
switch (i.tag) {
case PGF_LITERAL_STR: {
PgfLiteralStr *lstr = (PgfLiteralStr *) i.data;
GuPool* tmp_pool = gu_local_pool();
GuIn* in = gu_string_in(lstr->val,tmp_pool);
GuExn* err = gu_new_exn(tmp_pool);
PgfType *type = pgf_read_type(in, pool, err);
if (!gu_ok(err))
break;
gu_pool_free(tmp_pool);
return type;
}
}
}
PgfType* type = gu_new_flex(pool, PgfType, exprs, 0);
type->hypos = gu_empty_seq();
type->cid = "S";
type->n_exprs = 0;
return type;
}
PGF_API GuString
pgf_language_code(PgfConcr* concr)
{
PgfFlag* flag =
gu_seq_binsearch(concr->cflags, pgf_flag_order, PgfFlag, "language");
if (flag == NULL)
return "";
GuVariantInfo i = gu_variant_open(flag->value);
switch (i.tag) {
case PGF_LITERAL_STR: {
PgfLiteralStr *lstr = (PgfLiteralStr *) i.data;
return lstr->val;
}
}
return "";
}
PGF_API void
pgf_iter_functions(PgfPGF* pgf, GuMapItor* itor, GuExn* err)
{
size_t n_funs = gu_seq_length(pgf->abstract.funs);
for (size_t i = 0; i < n_funs; i++) {
PgfAbsFun* fun = gu_seq_index(pgf->abstract.funs, PgfAbsFun, i);
itor->fn(itor, fun->name, &fun, err);
if (!gu_ok(err))
break;
}
}
PGF_API void
pgf_iter_functions_by_cat(PgfPGF* pgf, PgfCId catname,
GuMapItor* itor, GuExn* err)
{
size_t n_funs = gu_seq_length(pgf->abstract.funs);
for (size_t i = 0; i < n_funs; i++) {
PgfAbsFun* fun = gu_seq_index(pgf->abstract.funs, PgfAbsFun, i);
if (strcmp(fun->type->cid, catname) == 0) {
itor->fn(itor, fun->name, &fun, err);
if (!gu_ok(err))
break;
}
}
}
PGF_API PgfType*
pgf_function_type(PgfPGF* pgf, PgfCId funname)
{
PgfAbsFun* absfun =
gu_seq_binsearch(pgf->abstract.funs, pgf_absfun_order, PgfAbsFun, funname);
if (absfun == NULL)
return NULL;
return absfun->type;
}
PGF_API double
pgf_function_prob(PgfPGF* pgf, PgfCId funname)
{
PgfAbsFun* absfun =
gu_seq_binsearch(pgf->abstract.funs, pgf_absfun_order, PgfAbsFun, funname);
if (absfun == NULL)
return INFINITY;
return absfun->ep.prob;
}
PGF_API GuString
pgf_print_name(PgfConcr* concr, PgfCId id)
{
PgfCId name =
gu_map_get(concr->printnames, id, GuString);
return name;
}
PGF_API int
pgf_has_linearization(PgfConcr* concr, PgfCId id)
{
PgfCncOverloadMap* overl_table =
gu_map_get(concr->fun_indices, id, PgfCncOverloadMap*);
return (overl_table != NULL);
}
PGF_API PgfExprProb*
pgf_fun_get_ep(void* value)
{
PgfAbsFun* absfun = *((PgfAbsFun**) value);
return &absfun->ep;
}
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