381 lines
7.4 KiB
C
381 lines
7.4 KiB
C
/*
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* $Id: tree.h,v 1.72 2006-09-11 14:29:23 bacon Exp $
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*/
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#ifndef _XP_AWK_TREE_H_
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#define _XP_AWK_TREE_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_NDE_NULL,
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/* statement */
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XP_AWK_NDE_BLK,
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XP_AWK_NDE_IF,
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XP_AWK_NDE_WHILE,
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XP_AWK_NDE_DOWHILE,
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XP_AWK_NDE_FOR,
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XP_AWK_NDE_FOREACH,
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XP_AWK_NDE_BREAK,
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XP_AWK_NDE_CONTINUE,
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XP_AWK_NDE_RETURN,
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XP_AWK_NDE_EXIT,
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XP_AWK_NDE_NEXT,
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XP_AWK_NDE_NEXTFILE,
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XP_AWK_NDE_DELETE,
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XP_AWK_NDE_PRINT,
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/* expression */
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/* if you change the following values including their order,
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* you should change __eval_func of __eval_expression
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* in run.c accordingly */
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XP_AWK_NDE_GRP,
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XP_AWK_NDE_ASS,
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XP_AWK_NDE_EXP_BIN,
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XP_AWK_NDE_EXP_UNR,
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XP_AWK_NDE_EXP_INCPRE,
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XP_AWK_NDE_EXP_INCPST,
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XP_AWK_NDE_CND,
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XP_AWK_NDE_BFN,
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XP_AWK_NDE_AFN,
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XP_AWK_NDE_INT,
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XP_AWK_NDE_REAL,
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XP_AWK_NDE_STR,
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XP_AWK_NDE_REX,
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/* keep this order for the following items otherwise, you may have
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* to change __eval_incpre and __eval_incpst in run.c as well as
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* XP_AWK_VAL_REF_XXX in val.h */
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XP_AWK_NDE_NAMED,
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XP_AWK_NDE_GLOBAL,
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XP_AWK_NDE_LOCAL,
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XP_AWK_NDE_ARG,
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XP_AWK_NDE_NAMEDIDX,
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XP_AWK_NDE_GLOBALIDX,
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XP_AWK_NDE_LOCALIDX,
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XP_AWK_NDE_ARGIDX,
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/* ---------------------------------- */
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XP_AWK_NDE_POS,
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XP_AWK_NDE_GETLINE,
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};
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enum
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{
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/* the order of these values match
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* __in_type_map and __in_opt_map in extio.c */
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XP_AWK_IN_PIPE,
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XP_AWK_IN_COPROC,
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XP_AWK_IN_FILE,
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XP_AWK_IN_CONSOLE
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};
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enum
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{
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/* the order of these values match
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* __out_type_map and __out_opt_map in extio.c */
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XP_AWK_OUT_PIPE,
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XP_AWK_OUT_COPROC,
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XP_AWK_OUT_FILE,
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XP_AWK_OUT_FILE_APPEND,
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XP_AWK_OUT_CONSOLE
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};
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/* afn (awk function defined with the keyword function) */
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typedef struct xp_awk_afn_t xp_awk_afn_t;
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typedef struct xp_awk_nde_t xp_awk_nde_t;
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typedef struct xp_awk_nde_blk_t xp_awk_nde_blk_t;
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typedef struct xp_awk_nde_grp_t xp_awk_nde_grp_t;
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typedef struct xp_awk_nde_ass_t xp_awk_nde_ass_t;
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typedef struct xp_awk_nde_exp_t xp_awk_nde_exp_t;
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typedef struct xp_awk_nde_cnd_t xp_awk_nde_cnd_t;
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typedef struct xp_awk_nde_pos_t xp_awk_nde_pos_t;
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typedef struct xp_awk_nde_int_t xp_awk_nde_int_t;
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typedef struct xp_awk_nde_real_t xp_awk_nde_real_t;
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typedef struct xp_awk_nde_str_t xp_awk_nde_str_t;
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typedef struct xp_awk_nde_rex_t xp_awk_nde_rex_t;
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typedef struct xp_awk_nde_var_t xp_awk_nde_var_t;
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typedef struct xp_awk_nde_call_t xp_awk_nde_call_t;
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typedef struct xp_awk_nde_getline_t xp_awk_nde_getline_t;
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typedef struct xp_awk_nde_if_t xp_awk_nde_if_t;
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typedef struct xp_awk_nde_while_t xp_awk_nde_while_t;
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typedef struct xp_awk_nde_for_t xp_awk_nde_for_t;
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typedef struct xp_awk_nde_foreach_t xp_awk_nde_foreach_t;
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typedef struct xp_awk_nde_break_t xp_awk_nde_break_t;
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typedef struct xp_awk_nde_continue_t xp_awk_nde_continue_t;
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typedef struct xp_awk_nde_return_t xp_awk_nde_return_t;
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typedef struct xp_awk_nde_exit_t xp_awk_nde_exit_t;
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typedef struct xp_awk_nde_next_t xp_awk_nde_next_t;
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typedef struct xp_awk_nde_nextfile_t xp_awk_nde_nextfile_t;
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typedef struct xp_awk_nde_delete_t xp_awk_nde_delete_t;
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typedef struct xp_awk_nde_print_t xp_awk_nde_print_t;
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struct xp_awk_afn_t
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{
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xp_char_t* name;
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xp_size_t name_len;
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xp_size_t nargs;
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xp_awk_nde_t* body;
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};
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#define XP_AWK_NDE_HDR \
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int type; \
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xp_awk_nde_t* next
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struct xp_awk_nde_t
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{
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XP_AWK_NDE_HDR;
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};
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/* XP_AWK_NDE_BLK - block statement including top-level blocks */
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struct xp_awk_nde_blk_t
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{
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XP_AWK_NDE_HDR;
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xp_size_t nlocals;
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xp_awk_nde_t* body;
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};
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/* XP_AWK_NDE_GRP - expression group */
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struct xp_awk_nde_grp_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* body;
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};
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/* XP_AWK_NDE_ASS - assignment */
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struct xp_awk_nde_ass_t
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{
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XP_AWK_NDE_HDR;
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int opcode;
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xp_awk_nde_t* left;
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xp_awk_nde_t* right;
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};
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/* XP_AWK_NDE_EXP_BIN, XP_AWK_NDE_EXP_UNR,
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* XP_AWK_NDE_EXP_INCPRE, XP_AW_NDE_EXP_INCPST */
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struct xp_awk_nde_exp_t
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{
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XP_AWK_NDE_HDR;
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int opcode;
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xp_awk_nde_t* left;
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xp_awk_nde_t* right; /* XP_NULL for UNR, INCPRE, INCPST */
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};
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/* XP_AWK_NDE_CND */
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struct xp_awk_nde_cnd_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* test;
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xp_awk_nde_t* left;
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xp_awk_nde_t* right;
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};
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/* XP_AWK_NDE_POS - positional - $1, $2, $x, etc */
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struct xp_awk_nde_pos_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* val;
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};
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/* XP_AWK_NDE_INT */
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struct xp_awk_nde_int_t
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{
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XP_AWK_NDE_HDR;
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xp_long_t val;
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xp_char_t* str;
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xp_size_t len;
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};
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/* XP_AWK_NDE_REAL */
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struct xp_awk_nde_real_t
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{
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XP_AWK_NDE_HDR;
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xp_real_t val;
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xp_char_t* str;
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xp_size_t len;
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};
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/* XP_AWK_NDE_STR */
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struct xp_awk_nde_str_t
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{
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XP_AWK_NDE_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_NDE_REX */
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struct xp_awk_nde_rex_t
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{
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XP_AWK_NDE_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_NDE_NAMED, XP_AWK_NDE_GLOBAL,
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* XP_AWK_NDE_LOCAL, XP_AWK_NDE_ARG
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* XP_AWK_NDE_NAMEDIDX, XP_AWK_NDE_GLOBALIDX,
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* XP_AWK_NDE_LOCALIDX, XP_AWK_NDE_ARGIDX */
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struct xp_awk_nde_var_t
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{
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XP_AWK_NDE_HDR;
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struct
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{
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xp_char_t* name;
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xp_size_t name_len;
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xp_size_t idxa;
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} id;
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xp_awk_nde_t* idx; /* XP_NULL for non-XXXXIDX */
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};
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/* XP_AWK_NDE_BFN, XP_AWK_NDE_AFN */
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struct xp_awk_nde_call_t
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{
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XP_AWK_NDE_HDR;
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union
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{
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struct
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{
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xp_char_t* name;
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xp_size_t name_len;
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} afn;
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/* minimum information of a built-in function
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* needed during run-time. */
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struct
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{
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const xp_char_t* name;
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xp_size_t name_len;
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xp_size_t min_args;
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xp_size_t max_args;
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const xp_char_t* arg_spec;
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int (*handler) (xp_awk_t* awk, void* run);
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} bfn;
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/* xp_awk_bfn_t* bfn; */
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} what;
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xp_awk_nde_t* args;
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xp_size_t nargs;
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};
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/* XP_AWK_NDE_GETLINE */
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struct xp_awk_nde_getline_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* var;
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int in_type; /* XP_AWK_GETLINE_XXX */
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xp_awk_nde_t* in;
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};
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/* XP_AWK_NDE_IF */
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struct xp_awk_nde_if_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* test;
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xp_awk_nde_t* then_part;
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xp_awk_nde_t* else_part; /* optional */
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};
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/* XP_AWK_NDE_WHILE, XP_AWK_NDE_DOWHILE */
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struct xp_awk_nde_while_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* test;
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xp_awk_nde_t* body;
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};
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/* XP_AWK_NDE_FOR */
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struct xp_awk_nde_for_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* init; /* optional */
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xp_awk_nde_t* test; /* optional */
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xp_awk_nde_t* incr; /* optional */
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xp_awk_nde_t* body;
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};
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/* XP_AWK_NDE_FOREACH */
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struct xp_awk_nde_foreach_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* test;
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xp_awk_nde_t* body;
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};
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/* XP_AWK_NDE_BREAK */
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struct xp_awk_nde_break_t
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{
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XP_AWK_NDE_HDR;
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};
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/* XP_AWK_NDE_CONTINUE */
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struct xp_awk_nde_continue_t
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{
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XP_AWK_NDE_HDR;
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};
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/* XP_AWK_NDE_RETURN */
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struct xp_awk_nde_return_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* val; /* optional (no return code if XP_NULL) */
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};
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/* XP_AWK_NDE_EXIT */
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struct xp_awk_nde_exit_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* val; /* optional (no exit code if XP_NULL) */
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};
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/* XP_AWK_NDE_NEXT */
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struct xp_awk_nde_next_t
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{
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XP_AWK_NDE_HDR;
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};
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/* XP_AWK_NDE_NEXTFILE */
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struct xp_awk_nde_nextfile_t
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{
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XP_AWK_NDE_HDR;
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};
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/* XP_AWK_NDE_DELETE */
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struct xp_awk_nde_delete_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* var;
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};
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/* XP_AWK_NDE_PRINT */
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struct xp_awk_nde_print_t
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{
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XP_AWK_NDE_HDR;
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xp_awk_nde_t* args;
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int out_type; /* XP_AWK_OUT_XXX */
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xp_awk_nde_t* out;
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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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int xp_awk_prnpt (xp_awk_t* awk, xp_awk_nde_t* tree);
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int xp_awk_prnptnpt (xp_awk_t* awk, xp_awk_nde_t* tree);
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void xp_awk_clrpt (xp_awk_t* awk, xp_awk_nde_t* tree);
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#ifdef __cplusplus
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}
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#endif
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#endif
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