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/*
* LDAP Utilities
* Copyright (C) 2012, 2019 David M. Syzdek <david@syzdek.net>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file lib/libldapschema/lformat.c contains string formatting functions
*/
#define _LIB_LIBLDAPSCHEMA_LERROR_C 1
#include "lerror.h"
///////////////
// //
// Headers //
// //
///////////////
#pragma mark - Headers
#include <errno.h>
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include "llexer.h"
//////////////
// //
// Macros //
// //
//////////////
#pragma mark - Macros
#define IS_SPACE( c ) ( (c == ' ') || (c == '\t') || (c == '\n') )
#define IS_UPPER( c ) ( (c >= 'A') && (c <= 'Z') )
#define IS_LOWER( c ) ( (c >= 'a') && (c <= 'z') )
#define IS_DIGIT( c ) ( (c >= '0') && (c <= '9') )
#define IS_KEYWORD( c ) ( IS_UPPER(c) || (c == '-') )
#define IS_STRNG( c ) ( IS_UPPER(c) || IS_LOWER(c) || IS_DIGIT(c) || (c=='_') || (c=='.') || (c=='{') || (c=='}') || (c == '-') )
//////////////////
// //
// Prototypes //
// //
//////////////////
#pragma mark - Prototypes
/////////////////
// //
// Functions //
// //
/////////////////
#pragma mark - Functions
/// initializes LDAP schema
/// @param[out] str Numeric error code
/// @param[in] size Numeric error code
/// @param[in] def Numeric error code
///
/// @return Returns a string representation of the error code.
/// @see ldapschema_free, ldapschema_initialize, ldapschema_errno
#define APPEND( c ) { last = c; if (strpos<size) str[strpos] = last; strpos++; }
#define INDENT() { if ((!IS_SPACE(last))&&((strpos))) { APPEND('\n'); for(x=0; (x<(indent*3));x++) APPEND(' '); bol=strpos; }; }
int ldapschema_fmt_definition( char * restrict str, size_t size, const char * restrict def, size_t width )
{
size_t defpos;
size_t strpos;
size_t tmppos;
size_t bol;
size_t deflen;
size_t indent;
size_t x;
char last;
assert(def != NULL);
// strips leading white space
for (defpos = 0; ((def[defpos] != '\0') && ((def[defpos] == ' ') || (def[defpos] == '\t'))); defpos++);
if (!(str))
size = 0;
deflen = strlen(def);
strpos = 0;
bol = 0;
last = 0;
// copies formatted definition
for(indent = 0; (defpos < deflen); defpos++)
{
switch(def[defpos])
{
// process start of groupings
case '(':
INDENT( );
indent++;
APPEND( '(' );
APPEND( ' ' );
break;
// process end of groupings
case ')':
indent--;
INDENT( );
APPEND( ')' );
break;
// process quoted strings
case '\'':
APPEND( ' ' );
APPEND( def[defpos++] );
while ((def[defpos] != '\'') && ((defpos+1) < deflen)) // find closing quote
{
APPEND( def[defpos++] );
};
APPEND( def[defpos] );
break;
// process whitespace
case ' ':
case '\t':
case '\n':
break;
default:
for(tmppos = defpos; IS_KEYWORD( def[tmppos] ); tmppos++);
if ( (tmppos != defpos) && (IS_SPACE(def[tmppos]) || (def[tmppos] == '\0')) )
{
// styling for upper case keywords
INDENT( );
} else if (def[defpos] == '$')
{
// styling for delimiters
APPEND( ' ' );
} else
{
// styling for unquoted strings
if ((strpos - bol) < width)
{
APPEND( ' ' );
} else
{
INDENT( );
};
};
for(; (IS_STRNG(def[defpos+1])); defpos++)
APPEND( def[defpos] );
APPEND( def[defpos] );
break;
};
};
// terminate string
if ((str))
{
if (strpos < size)
str[strpos] = '\0';
else
str[size-1] = '\0';
};
return((int)(strpos));
}
#undef APPEND
#undef INDENT
/* end of source file */
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