166 lines
3.5 KiB
C
166 lines
3.5 KiB
C
/*
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* $Id: val.h,v 1.41 2006-09-27 14:11:32 bacon Exp $
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*/
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#ifndef _XP_AWK_VAL_H_
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#define _XP_AWK_VAL_H_
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#ifndef _XP_AWK_AWK_H_
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#error Never include this file directly. Include <xp/awk/awk.h> instead
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#endif
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enum
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{
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XP_AWK_VAL_NIL = 0,
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XP_AWK_VAL_INT = 1,
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XP_AWK_VAL_REAL = 2,
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XP_AWK_VAL_STR = 3,
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XP_AWK_VAL_REX = 4,
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XP_AWK_VAL_MAP = 5,
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XP_AWK_VAL_REF = 6
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};
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enum
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{
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/* keep these items in the same order as corresponding items
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* in tree.h */
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XP_AWK_VAL_REF_NAMED,
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XP_AWK_VAL_REF_GLOBAL,
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XP_AWK_VAL_REF_LOCAL,
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XP_AWK_VAL_REF_ARG,
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XP_AWK_VAL_REF_NAMEDIDX,
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XP_AWK_VAL_REF_GLOBALIDX,
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XP_AWK_VAL_REF_LOCALIDX,
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XP_AWK_VAL_REF_ARGIDX
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};
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typedef struct xp_awk_val_nil_t xp_awk_val_nil_t;
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typedef struct xp_awk_val_int_t xp_awk_val_int_t;
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typedef struct xp_awk_val_real_t xp_awk_val_real_t;
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typedef struct xp_awk_val_str_t xp_awk_val_str_t;
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typedef struct xp_awk_val_rex_t xp_awk_val_rex_t;
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typedef struct xp_awk_val_map_t xp_awk_val_map_t;
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typedef struct xp_awk_val_ref_t xp_awk_val_ref_t;
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#if XP_SIZEOF_INT == 2
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#define XP_AWK_VAL_HDR \
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unsigned int type: 3; \
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unsigned int ref: 13
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#else
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#define XP_AWK_VAL_HDR \
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unsigned int type: 3; \
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unsigned int ref: 29
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#endif
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struct xp_awk_val_t
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{
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XP_AWK_VAL_HDR;
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};
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/* XP_AWK_VAL_NIL */
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struct xp_awk_val_nil_t
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{
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XP_AWK_VAL_HDR;
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};
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/* XP_AWK_VAL_INT */
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struct xp_awk_val_int_t
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{
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XP_AWK_VAL_HDR;
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xp_long_t val;
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xp_awk_nde_int_t* nde;
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};
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/* XP_AWK_VAL_REAL */
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struct xp_awk_val_real_t
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{
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XP_AWK_VAL_HDR;
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xp_real_t val;
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xp_awk_nde_real_t* nde;
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};
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/* XP_AWK_VAL_STR */
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struct xp_awk_val_str_t
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{
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XP_AWK_VAL_HDR;
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xp_char_t* buf;
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xp_size_t len;
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};
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/* XP_AWK_VAL_REX */
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struct xp_awk_val_rex_t
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{
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XP_AWK_VAL_HDR;
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xp_char_t* buf;
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xp_size_t len;
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void* code;
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};
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/* XP_AWK_VAL_MAP */
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struct xp_awk_val_map_t
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{
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XP_AWK_VAL_HDR;
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/* TODO: make val_map to array if the indices used are all integers
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* switch to map dynamically once the non-integral index is seen
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*/
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xp_awk_map_t* map;
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};
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/* XP_AWK_VAL_REF */
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struct xp_awk_val_ref_t
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{
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XP_AWK_VAL_HDR;
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int id;
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xp_awk_val_t** adr;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern xp_awk_val_t* xp_awk_val_nil;
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extern xp_awk_val_t* xp_awk_val_zls;
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extern xp_awk_val_t* xp_awk_val_zero;
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extern xp_awk_val_t* xp_awk_val_one;
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xp_awk_val_t* xp_awk_makeintval (xp_awk_run_t* run, xp_long_t v);
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xp_awk_val_t* xp_awk_makerealval (xp_awk_run_t* run, xp_real_t v);
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xp_awk_val_t* xp_awk_makestrval0 (xp_awk_run_t* run, const xp_char_t* str);
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xp_awk_val_t* xp_awk_makestrval (
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xp_awk_run_t* run, const xp_char_t* str, xp_size_t len);
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xp_awk_val_t* xp_awk_makestrval2 (
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xp_awk_run_t* run,
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const xp_char_t* str1, xp_size_t len1,
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const xp_char_t* str2, xp_size_t len2);
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xp_awk_val_t* xp_awk_makerexval (
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xp_awk_run_t* run, const xp_char_t* buf, xp_size_t len, void* code);
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xp_awk_val_t* xp_awk_makemapval (xp_awk_run_t* run);
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xp_awk_val_t* xp_awk_makerefval (
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xp_awk_run_t* run, int id, xp_awk_val_t** adr);
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xp_bool_t xp_awk_isbuiltinval (xp_awk_val_t* val);
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void xp_awk_freeval (xp_awk_run_t* run, xp_awk_val_t* val, xp_bool_t cache);
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void xp_awk_refupval (xp_awk_val_t* val);
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void xp_awk_refdownval (xp_awk_run_t* run, xp_awk_val_t* val);
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void xp_awk_refdownval_nofree (xp_awk_run_t* run, xp_awk_val_t* val);
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xp_bool_t xp_awk_valtobool (xp_awk_val_t* val);
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xp_char_t* xp_awk_valtostr (
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xp_awk_run_t* run, xp_awk_val_t* val,
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xp_bool_t clear_buf, xp_awk_str_t* buf, xp_size_t* len);
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int xp_awk_valtonum (
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xp_awk_run_t* run, xp_awk_val_t* v, xp_long_t* l, xp_real_t* r);
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void xp_awk_printval (xp_awk_val_t* val);
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#ifdef __cplusplus
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}
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#endif
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#endif
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