85 lines
1.3 KiB
C
85 lines
1.3 KiB
C
/*
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* $Id: awk.h,v 1.5 2005-12-05 15:11:29 bacon Exp $
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*/
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#ifndef _XP_AWK_AWK_H_
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#define _XP_AWK_AWK_H_
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#include <xp/types.h>
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#include <xp/macros.h>
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#include <xp/bas/string.h>
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enum
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{
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XP_AWK_ENOERR,
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XP_AWK_ENOMEM, /* out of memory */
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XP_AWK_ESRCOP,
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XP_AWK_ESRCCL,
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XP_AWK_ESRCDT, /* error in reading source */
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XP_AWK_ELXCHR, /* lexer came accross an wrong character */
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XP_AWK_ELXUNG /* lexer failed to unget a character */
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};
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/*
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* TYPE: xp_awk_t
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*/
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typedef struct xp_awk_t xp_awk_t;
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/*
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* TYPE: xp_awk_io_t
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*/
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typedef xp_ssize_t (*xp_awk_io_t) (
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int cmd, void* arg, xp_char_t* data, xp_size_t count);
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enum
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{
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XP_AWK_IO_OPEN,
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XP_AWK_IO_CLOSE,
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XP_AWK_IO_DATA
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};
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struct xp_awk_t
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{
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/* io functions */
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xp_awk_io_t source_func;
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xp_awk_io_t input_func;
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xp_awk_io_t output_func;
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void* source_arg;
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void* input_arg;
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void* output_arg;
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/* source buffer management */
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struct {
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xp_cint_t curc;
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xp_cint_t ungotc[5];
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xp_size_t ungotc_count;
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} lex;
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/* token */
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struct {
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int type;
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xp_str_t name;
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} token;
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/* housekeeping */
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int errnum;
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xp_bool_t __dynamic;
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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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xp_awk_t* xp_awk_open (xp_awk_t* awk);
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int xp_awk_close (xp_awk_t* awk);
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int xp_awk_attach_source (xp_awk_t* awk, xp_awk_io_t source, void* source_arg);
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int xp_awk_detach_source (xp_awk_t* awk);
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#ifdef __cplusplus
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}
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#endif
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#endif
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