148 lines
2.5 KiB
C
148 lines
2.5 KiB
C
/*
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* $Id: lsp.h,v 1.5 2005-09-18 10:18:35 bacon Exp $
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*/
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#ifndef _XP_LSP_LSP_H_
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#define _XP_LSP_LSP_H_
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/*
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* HEADER: xp_lsp_t
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* A lisp-like embeddable language processor is provied for application
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* development that requires scripting.
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*
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*/
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#include <xp/lsp/types.h>
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#include <xp/lsp/token.h>
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#include <xp/lsp/object.h>
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#include <xp/lsp/memory.h>
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#define XP_LSP_ERR(lsp) ((lsp)->errnum)
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enum
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{
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XP_LSP_ERR_NONE = 0,
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XP_LSP_ERR_ABORT,
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XP_LSP_ERR_END,
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XP_LSP_ERR_MEM,
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XP_LSP_ERR_INPUT_NOT_ATTACHED,
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XP_LSP_ERR_INPUT,
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XP_LSP_ERR_OUTPUT_NOT_ATTACHED,
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XP_LSP_ERR_OUTPUT,
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XP_LSP_ERR_SYNTAX,
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XP_LSP_ERR_BAD_ARG,
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XP_LSP_ERR_WRONG_ARG,
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XP_LSP_ERR_TOO_FEW_ARGS,
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XP_LSP_ERR_TOO_MANY_ARGS,
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XP_LSP_ERR_UNDEF_FUNC,
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XP_LSP_ERR_BAD_FUNC,
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XP_LSP_ERR_DUP_FORMAL,
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XP_LSP_ERR_BAD_SYMBOL,
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XP_LSP_ERR_UNDEF_SYMBOL,
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XP_LSP_ERR_EMPTY_BODY,
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XP_LSP_ERR_BAD_VALUE
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};
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typedef int (*xp_lsp_io_t) (int cmd, void* owner, void* arg);
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enum
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{
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XP_LSP_IO_OPEN,
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XP_LSP_IO_CLOSE,
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XP_LSP_IO_CHAR,
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XP_LSP_IO_STR
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};
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/*
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* STRUCT: xp_lsp_t
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* Defines the lisp object
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*/
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struct xp_lsp_t
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{
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/* error number */
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int errnum;
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int opt_undef_symbol;
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/* for read */
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xp_cint_t curc;
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xp_lsp_token_t token;
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/* for eval */
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xp_size_t max_eval_depth; // TODO:....
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xp_size_t eval_depth;
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/* io functions */
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xp_lsp_io_t input_func;
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xp_lsp_io_t output_func;
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/* memory manager */
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xp_lsp_mem_t* mem;
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xp_bool_t __malloced;
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};
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typedef struct xp_lsp_t xp_lsp_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* FUNCTION: xp_lsp_open
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* Instantiate the lisp object
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*/
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xp_lsp_t* xp_lsp_open (xp_lsp_t* lisp,
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xp_size_t mem_ubound, xp_size_t mem_ubound_inc);
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/*
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* FUNCTION: xp_lsp_close
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* Destroys the lisp object
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*
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* PARAMETERS:
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* lsp - the pointer to the lisp object
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*/
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void xp_lsp_close (xp_lsp_t* lsp);
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/*
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* FUNCTION: xp_lsp_error
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*/
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int xp_lsp_error (xp_lsp_t* lsp, xp_char_t* buf, xp_size_t size);
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/*
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* FUNCTION: xp_lsp_attach_input
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*/
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int xp_lsp_attach_input (xp_lsp_t* lsp, xp_lsp_io_t input);
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/*
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* FUNCTION: xp_lsp_detach_input
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*/
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int xp_lsp_detach_input (xp_lsp_t* lsp);
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/*
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* FUNCTION: xp_lsp_attach_output
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*/
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int xp_lsp_attach_output (xp_lsp_t* lsp, xp_lsp_io_t output);
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/*
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* FUNCTION: xp_lsp_detach_output
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*/
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int xp_lsp_detach_output (xp_lsp_t* lsp);
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/*
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* FUNCTION: xp_lsp_read
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*/
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xp_lsp_obj_t* xp_lsp_read (xp_lsp_t* lsp);
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/*
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* FUNCTION: xp_lsp_eval
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*/
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xp_lsp_obj_t* xp_lsp_eval (xp_lsp_t* lsp, xp_lsp_obj_t* obj);
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/*
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* FUNCTION: xp_lsp_print
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*/
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int xp_lsp_print (xp_lsp_t* lsp, const xp_lsp_obj_t* obj);
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#ifdef __cplusplus
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}
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#endif
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#endif
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