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libpgf: a new implementation for literals which also allows custom literals. the same mechanism is now used for the metavariables

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kr.angelov
2012-03-12 14:25:51 +00:00
parent c1b2246fa9
commit 2bf3f22fac
10 changed files with 728 additions and 311 deletions
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24
src/runtime/c/pgf/data.h
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@@ -209,6 +209,17 @@ extern GU_DECLARE_TYPE(PgfTransitions, GuStringMap);
typedef GuMap PgfEpsilonIdx;
extern GU_DECLARE_TYPE(PgfEpsilonIdx, GuMap);
typedef struct PgfLiteralCallback PgfLiteralCallback;
extern GU_DECLARE_TYPE(PgfLiteralCallback, struct);
struct PgfLiteralCallback {
bool (*match)(PgfLiteralCallback* self, int lin_idx, PgfTokens toks,
PgfExprProb** out_ep, GuPool *pool);
};
typedef GuMap PgfCallbacksMap;
extern GU_DECLARE_TYPE(PgfCallbacksMap, GuMap);
struct PgfConcr {
PgfFlags* cflags;
PgfPrintNames* printnames;
@@ -220,6 +231,7 @@ struct PgfConcr {
PgfCncFuns* cncfuns;
PgfSequences* sequences;
PgfCIdMap* cnccats;
PgfCallbacksMap* callbacks;
int total_cats;
int max_fid;
};
@@ -269,7 +281,7 @@ typedef struct PgfSymbolKP
typedef enum {
PGF_PRODUCTION_APPLY,
PGF_PRODUCTION_COERCE,
PGF_PRODUCTION_META
PGF_PRODUCTION_EXTERN
} PgfProductionTag;
typedef struct PgfPArg PgfPArg;
@@ -299,14 +311,10 @@ typedef struct PgfProductionCoerce
} PgfProductionCoerce;
typedef struct {
PgfExpr expr; // XXX
GuLength n_toks;
GuString toks[]; // XXX
} PgfProductionConst;
typedef struct {
PgfFunId fun;
PgfPArgs args;
} PgfProductionMeta;
PgfLiteralCallback *callback;
} PgfProductionExtern;
extern GU_DECLARE_TYPE(PgfPatt, GuVariant);