hpdftbl_dump.c File Reference

Functions for json serializing of table data structure. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <hpdf.h>
#include "hpdftbl.h"
#include <jansson.h>

Macros
#define	jsonprint(...)   if( _string_ ) { sprintf (_sbuff_, __VA_ARGS__);size_t _len_=xstrlcat(_jsonbuff_,_sbuff_,_jsonbuff_size_); if(_len_>=_jsonbuff_size_) return -1;} else {fprintf(fh,__VA_ARGS__);}
#define	OUTJSON_NEWBLK()   do { jsonprint("%*s{\n", tab,""); } while(0)
#define	OUTJSON_ENDDOC()   do { jsonprint( "}\n"); } while(0)
#define	OUTJSON_INDENT()   do { jsonprint( "%*s", tab,""); } while(0)
#define	OUTJSON_NEWLINE()   do { jsonprint( "\n"); } while(0)
#define	OUTJSON_STRINT(k, v, e)   do { jsonprint( "%*s\"%s\": %d%c\n",tab,"",k,(int)v,e); } while(0)
#define	OUTJSON_STRREAL(k, v, e)   do { jsonprint( "%*s\"%s\": %.8f%c\n",tab,"",k,v,e); } while(0)
#define	OUTJSON_STRSTR(k, v)   do { if( v==NULL ) {jsonprint( "%*s\"%s\": \"\",\n",tab,"",k) } else { jsonprint( "%*s\"%s\": \"%s\",\n",tab,"",k,v);} } while(0)
#define	OUTJSON_STRBLK(k)   do { jsonprint( "%*s\"%s\": {\n",tab,"",k); } while(0)
#define	OUTJSON_STRLIST(k)   do { jsonprint( "%*s\"%s\": [\n",tab,"",k); } while(0)
#define	OUTJSON_ENDLIST(e)   do { jsonprint( "\n%*s]%c\n",tab,"",e); } while(0)
#define	OUTJSON_STARTBLK()   do { jsonprint( "%*s{\n",tab,""); } while(0)
#define	OUTJSON_ENDBLK(c)   do { jsonprint( "%*s}%c\n",tab,"",c); } while(0)
#define	OUTJSON_BOOL(k, v)   do { if(v) { jsonprint( "%*s\"%s\": true,\n",tab,"",k);} else { jsonprint( "%*s\"%s\": false,\n",tab,"",k);} } while(0)
#define	OUTJSON_RGB(k, v)   do { jsonprint( "%*s\"%s\": [%.5f, %.5f, %.5f],\n",tab,"",k,v.r,v.g,v.b); } while(0)
#define	OUTJSON_GRID(k, v)
#define	OUTJSON_TXTSTYLE(k, v, c)

Functions
int	hpdftbl_theme_dump (hpdftbl_theme_t *theme, char *filename)
	Serialize the specified theme structure to a named file. More...
int	hpdftbl_theme_dumps (hpdftbl_theme_t *theme, char *buff, const size_t buffsize)
	Serialize theme structure to a string buffer. More...
int	hpdftbl_dump (hpdftbl_t tbl, char *filename)
	Serialize a table structure as a JSON file. More...
int	hpdftbl_dumps (hpdftbl_t tbl, char *buff, size_t buffsize)
	Serialize a table structure to a string buffer. More...

Detailed Description

Functions for json serializing of table data structure.

Author

Johan Persson (johan.nosp@m.162@.nosp@m.gmail.nosp@m..com)

Copyright (C) 2022 Johan Persson

See also

LICENSE

Released under the MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Macro Definition Documentation

OUTJSON_GRID

#define OUTJSON_GRID	(		k,
			v
	)

Value:

    do { \
    OUTJSON_STRBLK(k);              \
    tab += 2;                    \
    OUTJSON_STRREAL("width",v.width,',');      \
    OUTJSON_RGB("color",v.color); \
    OUTJSON_STRINT("dashstyle",v.line_dashstyle,' '); \
    tab -= 2;                       \
    OUTJSON_ENDBLK(',');            \
} while(0)

OUTJSON_TXTSTYLE

#define OUTJSON_TXTSTYLE	(		k,
			v,
			c
	)

Value:

    do { \
    jsonprint( "%*s\"%s\": {\n",tab,"",k); \
    tab += 2;\
    OUTJSON_STRSTR("font",v.font); \
    OUTJSON_STRREAL("fsize",v.fsize,',');\
    OUTJSON_RGB("color",v.color);       \
    OUTJSON_RGB("background",v.background); \
    OUTJSON_STRINT("halign",v.halign,' '); \
    tab -= 2;  \
    OUTJSON_ENDBLK(c); \
} while(0)

Function Documentation

hpdftbl_dump()

int hpdftbl_dump	(	hpdftbl_t	tbl,
		char *	filename
	)

Serialize a table structure as a JSON file.

The table is serialized as JSON file and have whitespaces and newlines to make it more human readable. The serialization is a complete representation of a table.

Parameters

tbl	Table handle
filename	Filename to write to. Any path specified must exists

Returns

-1 on failure, 0 on success

hpdftbl_dumps()

int hpdftbl_dumps	(	hpdftbl_t	tbl,
		char *	buff,
		size_t	buffsize
	)

Serialize a table structure to a string buffer.

The table is serialized as JSON and have whitespaces and newlines to make it more human readable. Note is is the callers responsibility to make sure the buffer is large enough to hold the serialized table.

Parameters

tbl	Table handle of table to dump
buff	Buffer to dump structure to
buffsize	Size of buffer

Returns

-1 on failure, 0 on success

See also

hpdftbl_load(),hpdftbl_dump(), hpdftbl_stroke_pos(),

Referenced by hpdftbl_dump().

hpdftbl_theme_dump()

int hpdftbl_theme_dump	(	hpdftbl_theme_t *	theme,
		char *	filename
	)

Serialize the specified theme structure to a named file.

The theme is serialized as JSON string array and have whitespaces and newlines to make it more human readable.

Parameters

theme	Pointer to theme structure to be serialized
filename	Filename to write to

Returns

0 on success, -1 on failure

hpdftbl_theme_dumps()

int hpdftbl_theme_dumps	(	hpdftbl_theme_t *	theme,
		char *	buff,
		const size_t	buffsize
	)

Serialize theme structure to a string buffer.

The theme is serialized as JSON string array and have whitespaces and newlines to make it more human readable.

Parameters

theme	Theme to serialize
buff	Buffer to write serialized theme to. It should be a minimum of 2k chars.
buffsize	Buffer size (including ending string NULL)

Returns

0 on success, < 0 on failure

Referenced by hpdftbl_theme_dump().