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/*
Copyright (C) 2015-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/
/*
WARNING: This file was generated by the dkct program (see
http://dktools.sourceforge.net/ for details).
Changes you make here will be lost if dkct is run again!
You should modify the original source and run dkct on it.
Original source: dk4tsp08.ctr
*/
#ifndef DK4TSP08_H_INCLUDED
/** Avoid multiple inclusions. */
#define DK4TSP08_H_INCLUDED 1
#line 10 "dk4tsp08.ctr"
/** @file dk4tsp08.h Text stream processing for 8 bit characters.
CRT on Windows: Optional.
*/
#ifndef DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif
#ifndef DK4TYPES_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4types.h"
#else
#include <dktools-4/dk4types.h>
#endif
#endif
#ifndef DK4ERROR_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4error.h"
#else
#include <dktools-4/dk4error.h>
#endif
#endif
#ifndef DK4BOM_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4bom.h"
#else
#include <dktools-4/dk4bom.h>
#endif
#endif
#ifndef DK4TSP_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4tsp.h"
#else
#include <dktools-4/dk4tsp.h>
#endif
#endif
#ifndef DK4UTF8_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4utf8.h"
#else
#include <dktools-4/dk4utf8.h>
#endif
#endif
#ifndef DK4UTF16_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4utf16.h"
#else
#include <dktools-4/dk4utf16.h>
#endif
#endif
#ifndef DK4C32_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4c32.h"
#else
#include <dktools-4/dk4c32.h>
#endif
#endif
/** Handler function for single characters.
@param obj Object to modify while processing the character.
@param c Character to process.
@param pos Current position in file or data stream.
@param erp Error report, may be NULL.
@return DK4_TSP_RES_OK if the character was processed
successfully,
DK4_TSP_RES_ERROR if there was an error but we can
continue,
DK4_TSP_RES_FATAL if there was a fatal error so we
should abort processing.
*/
typedef int dk4_c8_handler_t(
void *obj,
char c,
dk4_text_stream_position_t *pos,
dk4_er_t *erp
);
/** Handler function for text lines.
@param obj Object to modify while processing the character.
@param line Text line to process.
@param lineno Current line number.
@param erp Error report, may be NULL.
@return DK4_TSP_RES_OK if the character was processed
successfully,
DK4_TSP_RES_ERROR if there was an error but we can
continue,
DK4_TSP_RES_FATAL if there was a fatal error so we
should abort processing.
*/
typedef int dk4_c8_line_handler_t(
void *obj,
char *line,
dk4_um_t lineno,
dk4_er_t *erp
);
/** Structure for 8 bit character processing.
*/
typedef struct {
union {
dk4_utf8_decoder_t u08; /**< UTF-8 decoder. */
dk4_utf16_byte_decoder_t u16; /**< UTF-16 decoder. */
dk4_c32_byte_decoder_t c32; /**< 32 bit char decoder. */
} dec; /**< Input decoder. */
dk4_bom_detector_t bomd; /**< BOM detector. */
dk4_text_stream_position_t pos; /**< Current position. */
dk4_er_t er_en; /**< Errors in input decoding. */
dk4_er_t er_pr; /**< Errors in processing. */
union {
dk4_c8_line_handler_t *lh; /**< Handler function for lines. */
dk4_c8_handler_t *ch; /**< Handler function for char. */
} fct; /**< Handler function. */
char *inbuf; /**< Buffer for input line. */
void *obj; /**< Object to modify in processing. */
size_t in_sz; /**< Size of input line buffer. */
size_t in_us; /**< Used bytes in input line buffer. */
int upt; /**< Flag: Enable UTF-8 pass through. */
int ief; /**< Input encoding found. */
int iee; /**< Input encoding expected. */
int pen; /**< Encoding for processing. */
int pst; /**< Processing stage. */
int pth; /**< Flag: Pass through. */
} dk4_tsp08_t;
#ifdef __cplusplus
extern "C" {
#endif
/** Set up processor for byte by byte processing.
@param tsp Processor to set up.
@param obj Object to modify when processing input, may be NULL.
@param fct Handler function to call for each character.
@param pre Encoding required for processing.
@param eie Expected input encoding.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
- DK4_E_INVALID_ARGUMENTS<br>
if tsp or fct is NULL or pre is not an encoding for 8-bit characters.
*/
int
dk4tsp08_setup_char(
dk4_tsp08_t *tsp,
void *obj,
dk4_c8_handler_t *fct,
int pre,
int eie,
dk4_er_t *erp
);
/** Set up processor for line processing.
@param tsp Processor to set up.
@param obj Object to modify when processing input, may be NULL.
@param fct Handler function to invoke for each line.
@param inbuf Input line buffer.
@param szin Size of input line buffer.
@param pre Encoding required for processing.
@param eie Expected input encoding.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
- DK4_E_INVALID_ARGUMENTS<br>
if tsp, fct or inbuf is NULL, szin is 0 or pre is not a
valid encoding for 8-bit characters.
*/
int
dk4tsp08_setup_line(
dk4_tsp08_t *tsp,
void *obj,
dk4_c8_line_handler_t *fct,
char *inbuf,
size_t szin,
int pre,
int eie,
dk4_er_t *erp
);
/** Enable or disable pass-through of UTF-8 encoded data.
Use this function after dk4tsp08_setup_line() or
dk4tsp08_setup_char() but before adding the first byte.
@param tsp Text stream processor to configure.
@param fl Flag: Enabled.
*/
void
dk4tsp08_enable_utf8_pass_through(dk4_tsp08_t *tsp, int fl);
/** Add one single byte.
@param tsp Text stream processor.
@param inbyte Byte to process.
@return DK4_TSP_RES_OK if the character was processed
successfully,
DK4_TSP_RES_ERROR if there was an error but we can
continue,
DK4_TSP_RES_FATAL if there was a fatal error so we
should abort processing.
*/
int
dk4tsp08_add_one_byte(
dk4_tsp08_t *tsp,
unsigned char inbyte
);
/** Add multiple bytes.
@param tsp Text stream processor.
@param buffer Buffer start address.
@param sz Number of bytes in buffer.
@return DK4_TSP_RES_OK if the character was processed
successfully,
DK4_TSP_RES_ERROR if there was an error but we can
continue,
DK4_TSP_RES_FATAL if there was a fatal error so we
should abort processing.
*/
int
dk4tsp08_add_bytes(
dk4_tsp08_t *tsp,
const unsigned char *buffer,
size_t sz
);
/** Finish processing.
@param tsp Text stream processor.
@return DK4_TSP_RES_OK if processing was finished
successfully,
DK4_TSP_RES_ERROR if there was an error,
DK4_TSP_RES_FATAL if there was a fatal error.
*/
int
dk4tsp08_finish(dk4_tsp08_t *tsp);
/** Retrieve error reports for encoding/decoding and processing.
@param er_en Destination error report buffer for encoding/decoding.
@param er_pr Destination error report buffer for processing.
@param tsp Text stream processor to retrieve errors from.
Error codes er_en:
- DK4_E_BUFFER_TOO_SMALL<br>
if the input buffer provided in dk4tsp08_setup_line() is too
small,
- DK4_E_INVALID_ARGUMENTS<br>
if no character processing function was provided,
- DK4_E_DECODING_FAILED<br>
if there were decoding errors,
- DK4_E_ENCODING_FAILED<br>
if there were encoding errors.
Error codes er_pr:
- The error codes returned in er_pr depend on the processing
function.
*/
void
dk4tsp08_get_errors(dk4_er_t *er_en, dk4_er_t *er_pr, dk4_tsp08_t const *tsp);
#ifdef __cplusplus
}
#endif
#endif
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