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libpgf: added printer.c

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This commit is contained in:
kr.angelov
2012-02-17 14:11:29 +00:00
parent 3d9760d90d
commit 1bb13787a7
2 changed files with 390 additions and 13 deletions
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46
src/runtime/c/pgf/expr.c
View File

@@ -390,18 +390,38 @@ pgf_print_hypo(PgfHypo *hypo, int prec, GuWriter *wtr, GuExn *err)
void
pgf_print_type(PgfType *type, int prec, GuWriter *wtr, GuExn *err)
{
size_t len = gu_seq_length(type->hypos);
for (size_t i = 0; i < len; i++) {
PgfHypo *hypo = gu_seq_index(type->hypos, PgfHypo, i);
pgf_print_hypo(hypo, 1, wtr, err);
gu_puts(" -> ", wtr, err);
}
gu_string_write(type->cid, wtr, err);
size_t n_hypos = gu_seq_length(type->hypos);
for (int i = 0; i < type->n_exprs; i++) {
gu_puts(" ", wtr, err);
pgf_print_expr(type->exprs[i], 4, wtr, err);
}
if (n_hypos > 0) {
if (prec > 0) gu_putc('(', wtr, err);
for (size_t i = 0; i < n_hypos; i++) {
PgfHypo *hypo = gu_seq_index(type->hypos, PgfHypo, i);
pgf_print_hypo(hypo, 1, wtr, err);
gu_puts(" -> ", wtr, err);
}
gu_string_write(type->cid, wtr, err);
for (int i = 0; i < type->n_exprs; i++) {
gu_puts(" ", wtr, err);
pgf_print_expr(type->exprs[i], 4, wtr, err);
}
if (prec > 0) gu_putc(')', wtr, err);
} else if (type->n_exprs > 0) {
if (prec > 3) gu_putc('(', wtr, err);
gu_string_write(type->cid, wtr, err);
for (int i = 0; i < type->n_exprs; i++) {
gu_puts(" ", wtr, err);
pgf_print_expr(type->exprs[i], 4, wtr, err);
}
if (prec > 3) gu_putc(')', wtr, err);
} else {
gu_string_write(type->cid, wtr, err);
}
}

357
src/runtime/c/pgf/printer.c Normal file
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@@ -0,0 +1,357 @@
#include <pgf/data.h>
typedef struct {
GuMapItor fn;
GuWriter* wtr;
} PgfPrintFn;
void
pgf_print_flag(GuMapItor* fn, const void* key, void* value,
GuExn* err)
{
PgfPrintFn* clo = (PgfPrintFn*) fn;
PgfCId flag = *((PgfCId *) key);
PgfLiteral lit = *((PgfLiteral *) value);
GuWriter *wtr = clo->wtr;
gu_puts(" flag ", wtr, err);
gu_string_write(flag, wtr, err);
gu_puts(" = ", wtr, err);
pgf_print_literal(lit, wtr, err);
gu_puts(";\n", wtr, err);
}
void
pgf_print_cat(GuMapItor* fn, const void* key, void* value,
GuExn* err)
{
PgfPrintFn* clo = (PgfPrintFn*) fn;
PgfCId name = *((PgfCId *) key);
PgfCat *cat = *((PgfCat **) value);
GuWriter *wtr = clo->wtr;
gu_puts(" cat ", wtr, err);
gu_string_write(name, wtr, err);
size_t n_hypos = gu_seq_length(cat->context);
for (size_t i = 0; i < n_hypos; i++) {
PgfHypo* hypo = gu_seq_get(cat->context, PgfHypo*, i);
gu_putc(' ', wtr, err);
pgf_print_hypo(hypo, 4, wtr, err);
}
gu_puts(" ;\n", wtr, err);
}
void
pgf_print_absfun(GuMapItor* fn, const void* key, void* value,
GuExn* err)
{
PgfPrintFn* clo = (PgfPrintFn*) fn;
PgfCId name = *((PgfCId *) key);
PgfFunDecl *fun = *((PgfFunDecl **) value);
GuWriter *wtr = clo->wtr;
gu_puts(gu_seq_is_null(fun->defns) ? " data " : " fun ", wtr, err);
gu_string_write(name, wtr, err);
gu_puts(" : ", wtr, err);
pgf_print_type(fun->type, 0, wtr, err);
gu_puts(" ;\n", wtr, err);
}
static void
pgf_print_abstract(PgfCId absname, PgfAbstr* abstr,
GuWriter* wtr, GuExn* err)
{
gu_puts("abstract ", wtr, err);
gu_string_write(absname, wtr, err);
gu_puts(" {\n", wtr, err);
PgfPrintFn clo1 = { { pgf_print_flag }, wtr };
gu_map_iter(abstr->aflags, &clo1.fn, err);
PgfPrintFn clo2 = { { pgf_print_cat }, wtr };
gu_map_iter(abstr->cats, &clo2.fn, err);
PgfPrintFn clo3 = { { pgf_print_absfun }, wtr };
gu_map_iter(abstr->funs, &clo3.fn, err);
gu_puts("}\n", wtr, err);
}
static void
pgf_print_productions(GuMapItor* fn, const void* key, void* value,
GuExn* err)
{
PgfPrintFn* clo = (PgfPrintFn*) fn;
int fid = *((int *) key);
PgfCCat* ccat = *((PgfCCat**) value);
GuWriter *wtr = clo->wtr;
if (!gu_seq_is_null(ccat->prods)) {
size_t n_prods = gu_seq_length(ccat->prods);
for (size_t i = 0; i < n_prods; i++) {
PgfProduction prod = gu_seq_get(ccat->prods, PgfProduction, i);
gu_printf(wtr,err," C%d -> ",fid);
GuVariantInfo i = gu_variant_open(prod);
switch (i.tag) {
case PGF_PRODUCTION_APPLY: {
PgfProductionApply* papp = i.data;
gu_printf(wtr,err,"F%d[",papp->fun->funid);
size_t n_args = gu_seq_length(papp->args);
for (size_t j = 0; j < n_args; j++) {
if (j > 0)
gu_putc(',',wtr,err);
PgfPArg arg = gu_seq_get(papp->args, PgfPArg, j);
if (arg.hypos != NULL) {
size_t n_hypos = gu_list_length(arg.hypos);
for (size_t k = 0; k < n_hypos; k++) {
if (k > 0)
gu_putc(' ',wtr,err);
PgfCCat *hypo = gu_list_index(arg.hypos, k);
gu_printf(wtr,err,"C%d",hypo->fid);
}
}
gu_printf(wtr,err,"C%d",arg.ccat->fid);
}
gu_printf(wtr,err,"]\n");
break;
}
case PGF_PRODUCTION_COERCE: {
PgfProductionCoerce* pcoerce = i.data;
gu_printf(wtr,err,"_[C%d]\n",pcoerce->coerce);
break;
}
default:
gu_impossible();
}
}
}
}
static void
pgf_print_lindefs(GuMapItor* fn, const void* key, void* value,
GuExn* err)
{
PgfPrintFn* clo = (PgfPrintFn*) fn;
int fid = *((int *) key);
PgfCCat* ccat = *((PgfCCat**) value);
GuWriter *wtr = clo->wtr;
if (ccat->lindefs != NULL) {
gu_printf(wtr,err," C%d -> ",fid);
size_t n_lindefs = gu_list_length(ccat->lindefs);
for (size_t i = 0; i < n_lindefs; i++) {
if (i > 0) gu_putc(' ', wtr, err);
PgfFunId funid = gu_list_index(ccat->lindefs, i);
gu_printf(wtr,err,"F%d",funid->funid);
}
gu_putc('\n', wtr,err);
}
}
static void
pgf_print_cncfun(PgfCncFun *cncfun, PgfSequences *sequences,
GuWriter *wtr, GuExn *err)
{
gu_printf(wtr,err," F%d := (", cncfun->funid);
size_t n_seqs = gu_list_length(sequences);
for (size_t i = 0; i < cncfun->n_lins; i++) {
if (i > 0) gu_putc(',', wtr, err);
PgfSequence seq = cncfun->lins[i];
for (size_t seqid = 0; seqid < n_seqs; seqid++) {
if (gu_seq_data(gu_list_index(sequences, seqid)) == gu_seq_data(seq)) {
gu_printf(wtr,err,"S%d", seqid);
break;
}
}
}
gu_puts(") [", wtr, err);
gu_string_write(cncfun->fun, wtr, err);
gu_puts("]\n", wtr, err);
}
static void
pgf_print_tokens(PgfTokens tokens, GuWriter *wtr, GuExn *err)
{
gu_putc('"', wtr, err);
size_t n_toks = gu_seq_length(tokens);
for (size_t i = 0; i < n_toks; i++) {
if (i > 0) gu_putc(' ', wtr, err);
PgfToken tok = gu_seq_get(tokens, PgfToken, i);
gu_string_write(tok, wtr, err);
}
gu_putc('"', wtr, err);
}
void
pgf_print_symbol(PgfSymbol sym, GuWriter *wtr, GuExn *err)
{
switch (gu_variant_tag(sym)) {
case PGF_SYMBOL_CAT: {
PgfSymbolCat* scat = gu_variant_data(sym);
gu_printf(wtr, err, "<%d,%d>", scat->d, scat->r);
break;
}
case PGF_SYMBOL_KS: {
PgfSymbolKS* sks = gu_variant_data(sym);
pgf_print_tokens(sks->tokens, wtr, err);
break;
}
case PGF_SYMBOL_KP: {
PgfSymbolKP* skp = gu_variant_data(sym);
gu_puts("pre {", wtr, err);
pgf_print_tokens(skp->default_form, wtr, err);
for (size_t i = 0; i < skp->n_forms; i++) {
gu_puts("; ", wtr, err);
pgf_print_tokens(skp->forms[i].form, wtr, err);
gu_puts(" / ", wtr, err);
size_t n_prefixes = gu_list_length(skp->forms[i].prefixes);
for (size_t j = 0; j < n_prefixes; j++) {
if (j > 0) gu_putc(' ', wtr, err);
GuString prefix = gu_list_index(skp->forms[i].prefixes, j);
gu_putc('"', wtr, err);
gu_string_write(prefix, wtr, err);
gu_putc('"', wtr, err);
}
}
gu_puts("}", wtr, err);
break;
}
case PGF_SYMBOL_LIT: {
PgfSymbolLit *slit = gu_variant_data(sym);
gu_printf(wtr, err, "{%d,%d}", slit->d, slit->r);
break;
}
case PGF_SYMBOL_VAR: {
PgfSymbolVar *svar = gu_variant_data(sym);
gu_printf(wtr, err, "<%d,$%d>", svar->d, svar->r);
break;
}
default:
gu_impossible();
}
}
static void
pgf_print_sequence(size_t seqid, PgfSequence seq, GuWriter *wtr, GuExn *err)
{
gu_printf(wtr,err," S%d := ", seqid);
int n_syms = gu_seq_length(seq);
for (int i = 0; i < n_syms; i++) {
if (i > 0) gu_putc(' ', wtr, err);
PgfSymbol sym = gu_seq_get(seq, PgfSymbol, i);
pgf_print_symbol(sym, wtr, err);
}
gu_putc('\n', wtr, err);
}
static void
pgf_print_cnccat(GuMapItor* fn, const void* key, void* value,
GuExn* err)
{
PgfPrintFn* clo = (PgfPrintFn*) fn;
PgfCId name = *((PgfCId *) key);
PgfCncCat* cnccat = *((PgfCncCat**) value);
GuWriter *wtr = clo->wtr;
gu_puts(" ", wtr, err);
gu_string_write(name, wtr, err);
gu_puts(" :=\n", wtr, err);
PgfCCat *start = gu_list_index(cnccat->cats, 0);
PgfCCat *end = gu_list_index(cnccat->cats, gu_list_length(cnccat->cats)-1);
gu_printf(wtr, err, " range [C%d..C%d]\n", start->fid, end->fid);
gu_puts(" labels [", wtr, err);
for (size_t i = 0; i < cnccat->n_lins; i++) {
if (i > 0) {
gu_puts("\n ", wtr, err);
}
GuString lbl = gu_list_index(cnccat->labels, i);
gu_string_write(lbl, wtr, err);
}
gu_puts("]\n", wtr, err);
}
static void
pgf_print_concrete(PgfCId cncname, PgfConcr* concr,
GuWriter* wtr, GuExn* err)
{
gu_puts("concrete ", wtr, err);
gu_string_write(cncname, wtr, err);
gu_puts(" {\n", wtr, err);
PgfPrintFn clo1 = { { pgf_print_flag }, wtr };
gu_map_iter(concr->cflags, &clo1.fn, err);
gu_puts(" productions\n", wtr, err);
PgfPrintFn clo2 = { { pgf_print_productions }, wtr };
gu_map_iter(concr->ccats, &clo2.fn, err);
gu_puts(" lindefs\n", wtr, err);
PgfPrintFn clo3 = { { pgf_print_lindefs }, wtr };
gu_map_iter(concr->ccats, &clo3.fn, err);
gu_puts(" lin\n", wtr, err);
size_t n_funs = gu_list_length(concr->cncfuns);
for (size_t i = 0; i < n_funs; i++) {
PgfCncFun* cncfun = gu_list_index(concr->cncfuns, i);
pgf_print_cncfun(cncfun, concr->sequences, wtr, err);
}
gu_puts(" sequences\n", wtr, err);
size_t n_seqs = gu_list_length(concr->sequences);
for (size_t i = 0; i < n_seqs; i++) {
PgfSequence seq = gu_list_index(concr->sequences, i);
pgf_print_sequence(i, seq, wtr, err);
}
gu_puts(" categories\n", wtr, err);
PgfPrintFn clo4 = { { pgf_print_cnccat }, wtr };
gu_map_iter(concr->cnccats, &clo4.fn, err);
gu_puts("}\n", wtr, err);
}
static void
pgf_print_concr_cb(GuMapItor* fn, const void* key, void* value,
GuExn* err)
{
PgfPrintFn* clo = (PgfPrintFn*) fn;
PgfCId cncname = *((PgfCId *) key);
PgfConcr *concr = *((PgfConcr **) value);
pgf_print_concrete(cncname, concr, clo->wtr, err);
}
void
pgf_print(PgfPGF* pgf, GuWriter* wtr, GuExn* err)
{
pgf_print_abstract(pgf->absname, &pgf->abstract, wtr, err);
PgfPrintFn clo = { { pgf_print_concr_cb }, wtr };
gu_map_iter(pgf->concretes, &clo.fn, err);
}