libedittext/drd64_libedittext_lineedit.c

   1 /*DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64
   2
   3                          D r . D e a m o n  6 4
   4                         for INTEL64(R), AMD64(R)
   5
   6    Copyright(C) 2007-2009 Koine Yuusuke(koinec). All rights reserved.
   7
   8 Redistribution and use in source and binary forms, with or without
   9 modification, are permitted provided that the following conditions are met:
  10
  11  1. Redistributions of source code must retain the above copyright notice,
  12     this list of conditions and the following disclaimer.
  13  2. Redistributions in binary form must reproduce the above copyright
  14     notice, this list of conditions and the following disclaimer in the
  15     documentation and/or other materials provided with the distribution.
  16
  17 THIS SOFTWARE IS PROVIDED BY Koine Yuusuke(koinec) ``AS IS'' AND ANY
  18 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  20 DISCLAIMED. IN NO EVENT SHALL Koine Yuusuke(koinec) OR CONTRIBUTORS BE
  21 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  27 OF THE POSSIBILITY OF SUCH DAMAGE.
  28
  29 DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64*/
  30
  31 /* File Info -----------------------------------------------------------
  32 File: drd64_.c
  33 Function:
  34 Comment:
  35 ----------------------------------------------------------------------*/
  36
  37 #define DRD64_SRC_LIBEDITTEXT_LINEEDIT
  38 #include"drd64_libedittext.h"
  39
  40 #define LOCATION(n)     DRD64_ERR_LOCATION( \
  41                                                 DRD64_ERROR_MODULE_LIBEDITTEXT, DRD64_ERROR_ARCH_NODEPEND, \
  42                                                 DRD64_SRC_LIBEDITTEXT_LINEEDIT_SRCID, (n))
  43
  44
  45 /*----------------------------------------------------------------------
  46 ----------------------------------------------------------------------*/
  47 #define FUNCID_LibEditText_LineEdit_ClearLine           0x01
  48 LIBEDITTEXT_LINEEDIT_EXTERN
  49 int
  50         LibEditText_LineEdit_ClearLine(
  51                 LibEditText_TextInfo    *p_tinfo,
  52                 LibEditText_LineInfo    *p_line )
  53 {
  54         DWord   dw_len;
  55
  56         assert( NULL != p_tinfo );
  57         assert( NULL != p_line );
  58
  59         if(( INVALID_LINE == p_line->dw_before ) && ( INVALID_LINE == p_line->dw_next ))
  60                 { dw_len        = p_line->dw_strlen; }
  61         else    {
  62                 if( 1 == p_line->dw_strlen )    { return 0x00; }
  63                 dw_len  = p_line->dw_strlen - 1;
  64         }
  65
  66         memset( (p_tinfo->pb_text + p_line->dw_start), 0x00, dw_len );
  67         p_line->dw_strlen       -= dw_len;
  68
  69         return 0x00;
  70 }
  71
  72
  73 /*----------------------------------------------------------------------
  74 ----------------------------------------------------------------------*/
  75 #define FUNCID_LibEditText_LineEdit_DeleteString        0x02
  76 LIBEDITTEXT_LINEEDIT_EXTERN
  77 int
  78         LibEditText_LineEdit_DeleteString(
  79                 LibEditText_TextInfo    *p_tinfo,
  80                 LibEditText_LineInfo    *p_line,
  81                 DWord   dw_line,
  82                 DWord   dw_pos,
  83                 DWord   dw_len )
  84 {
  85         int                     i_result        = 0x00;
  86         Byte            *pb_data;
  87
  88         assert( NULL != p_tinfo );
  89         assert( NULL != p_line );
  90         assert( p_line->dw_strlen >= (dw_pos + dw_len) );
  91
  92         if(( 0 == dw_pos ) && ( dw_len == p_line->dw_strlen ))  {
  93                 // Delete Line ---
  94                 i_result        = LibEditText_LineCtrl_DeleteLine( p_tinfo, p_line, dw_line );
  95                 goto    goto_LibEditText_LineEdit_DeleteString_post;
  96         }
  97
  98         // Move StringData ---
  99         pb_data = p_tinfo->pb_text + p_line->dw_start;
 100         memmove( (pb_data + dw_pos), (pb_data + dw_pos + dw_len),
 101                                                         (p_line->dw_strlen - dw_pos - dw_len));
 102         memset( (pb_data + p_line->dw_strlen - dw_len), 0x00, dw_len );
 103         p_line->dw_strlen       -= dw_len;
 104
 105         assert( 0 < p_line->dw_strlen );
 106
 107         if( p_tinfo->dw_line_end == p_line->dw_id )
 108                 { goto  goto_LibEditText_LineEdit_DeleteString_post; }
 109         if( '\n' == *(pb_data + p_line->dw_strlen - 1) )
 110                 { goto  goto_LibEditText_LineEdit_DeleteString_post; }
 111
 112         // Merge line ---
 113         i_result        = LibEditText_LineCtrl_JoinLine( p_tinfo, p_line, dw_line );
 114
 115 goto_LibEditText_LineEdit_DeleteString_post:
 116         return i_result;
 117 }
 118
 119
 120 /*----------------------------------------------------------------------
 121 ----------------------------------------------------------------------*/
 122 #define FUNCID_LibEditText_LineEdit_InsertString        0x03
 123 LIBEDITTEXT_LINEEDIT_EXTERN
 124 int
 125         LibEditText_LineEdit_InsertString(
 126                 LibEditText_TextInfo    *p_tinfo,
 127                 LibEditText_LineInfo    *p_line,
 128                 DWord   dw_pos,
 129                 Byte    *pb_src,
 130                 DWord   dw_srclen )
 131 {
 132         int                                             i_result;
 133         Byte                                    *pb_pos;
 134         DWord                                   dw_length;
 135
 136         assert( NULL != p_tinfo );
 137         assert( NULL != p_line );
 138
 139         if( 0 == dw_srclen )    {
 140                 LibBrownie_Error_SetErrorInfo(
 141                                 DRD64_WARNING( DRD64_ERROR_PTN_FAILED_ARG, 0x00, 0x01 ),
 142                                 LOCATION( FUNCID_LibEditText_LineEdit_InsertString ),
 143                                 errno, (QWord)0x00, (QWord)dw_srclen, __LINE__ );
 144
 145                 return 0x01;
 146         }
 147
 148         /* Check Line Remain-Length & Swap line-buffer ---*/
 149         if( p_line->dw_strlen + dw_srclen + 1 > p_line->dw_linelen )    {
 150                 i_result        = LibEditText_LineInfo_ExpandLineBuffer(
 151                                                 p_tinfo, p_line,
 152                                                 dw_srclen + DRD64_LIBEDITTEXT_DEFAULT_RESERVEBUF_INLINE);
 153                 if( 0x00 != i_result )  {
 154                         LibBrownie_Error_SetErrorInfo(
 155                                         DRD64_ERROR( DRD64_ERROR_PTN_CALLFUNC, 0x01, 0x02 ),
 156                                         LOCATION( FUNCID_LibEditText_LineEdit_InsertString ),
 157                                         errno, (QWord)i_result, (QWord)dw_srclen, __LINE__ );
 158
 159                         return -0x02;
 160                 }
 161         }
 162
 163         if( p_line->dw_strlen < dw_pos )
 164                 { dw_pos        = p_line->dw_strlen; }
 165
 166         pb_pos  = p_tinfo->pb_text + p_line->dw_start + dw_pos;
 167         assert( NULL != pb_pos );
 168
 169         if(( '\n' == *(pb_src + dw_srclen - 1)) && ( 0 < p_line->dw_strlen ))   {
 170                 if( '\n' == *(pb_pos + p_line->dw_strlen - 1))  {
 171                         dw_srclen--;
 172                 }
 173         }
 174
 175         if( p_line->dw_strlen > dw_pos )        {
 176                 dw_length       = p_line->dw_strlen - dw_pos + 1;
 177                 memmove( pb_pos + dw_srclen, pb_pos, dw_length );
 178         }
 179
 180         memcpy( pb_pos, pb_src, dw_srclen );
 181         p_line->dw_strlen       += dw_srclen;
 182
 183         return 0x00;
 184 }
 185
 186
 187 /* EOF of drd64_.c ----------------------------------- */