| 1 | /****************************** Module Header *******************************
|
|---|
| 2 | *
|
|---|
| 3 | * Module Name: swaptext.e
|
|---|
| 4 | *
|
|---|
| 5 | * Copyright (c) Netlabs EPM Distribution Project 2002
|
|---|
| 6 | *
|
|---|
| 7 | * $Id: swaptext.e 3282 2018-12-01 23:22:31Z aschn $
|
|---|
| 8 | *
|
|---|
| 9 | * ===========================================================================
|
|---|
| 10 | *
|
|---|
| 11 | * This file is part of the Netlabs EPM Distribution package and is free
|
|---|
| 12 | * software. You can redistribute it and/or modify it under the terms of the
|
|---|
| 13 | * GNU General Public License as published by the Free Software
|
|---|
| 14 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 15 | * Netlabs EPM Distribution. This library is distributed in the hope that it
|
|---|
| 16 | * will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
|
|---|
| 17 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 18 | * General Public License for more details.
|
|---|
| 19 | *
|
|---|
| 20 | ****************************************************************************/
|
|---|
| 21 |
|
|---|
| 22 | ; ---------------------------------------------------------------------------
|
|---|
| 23 | defc MoveLineUp
|
|---|
| 24 | if .last < 2 then
|
|---|
| 25 | return
|
|---|
| 26 | endif
|
|---|
| 27 | SavedAutosave = .autosave
|
|---|
| 28 | .autosave = 0
|
|---|
| 29 | call psave_mark( SavedMark)
|
|---|
| 30 |
|
|---|
| 31 | call NextCmdAltersText()
|
|---|
| 32 | getfileid fid
|
|---|
| 33 | l = max( .line - 1, 1)
|
|---|
| 34 | call pset_mark( .line, .line, 1, MAXCOL, 'LINE', fid)
|
|---|
| 35 | -- The destination for line mark movement is below the current line.
|
|---|
| 36 | -- Therefore go one more line up.
|
|---|
| 37 | .lineg = l - 1 -- Go to line l - 1 without scrolling
|
|---|
| 38 | --call pmove_mark()
|
|---|
| 39 | move_mark
|
|---|
| 40 | .lineg = l -- Go to line l without scrolling
|
|---|
| 41 | .line = l -- Scroll when outside of window
|
|---|
| 42 |
|
|---|
| 43 | call prestore_mark( SavedMark)
|
|---|
| 44 | .autosave = SavedAutosave
|
|---|
| 45 | return
|
|---|
| 46 |
|
|---|
| 47 | ; ---------------------------------------------------------------------------
|
|---|
| 48 | defc MoveLineDown
|
|---|
| 49 | if .last < 2 then
|
|---|
| 50 | return
|
|---|
| 51 | endif
|
|---|
| 52 | SavedAutosave = .autosave
|
|---|
| 53 | .autosave = 0
|
|---|
| 54 | call psave_mark( SavedMark)
|
|---|
| 55 |
|
|---|
| 56 | call NextCmdAltersText()
|
|---|
| 57 | getfileid fid
|
|---|
| 58 | l = min( .line + 1, .last)
|
|---|
| 59 | call pset_mark( .line, .line, 1, MAXCOL, 'LINE', fid)
|
|---|
| 60 | .lineg = l -- Go to line l without scrolling
|
|---|
| 61 | --call pmove_mark()
|
|---|
| 62 | move_mark
|
|---|
| 63 | .lineg = l -- Go to line l without scrolling
|
|---|
| 64 | .line = l -- Scroll when outside of window
|
|---|
| 65 |
|
|---|
| 66 | call prestore_mark( SavedMark)
|
|---|
| 67 | .autosave = SavedAutosave
|
|---|
| 68 | return
|
|---|
| 69 |
|
|---|
| 70 | ; ---------------------------------------------------------------------------
|
|---|
| 71 | defc MoveCharLeft
|
|---|
| 72 | SavedAutosave = .autosave
|
|---|
| 73 | .autosave = 0
|
|---|
| 74 | if not insert_state() then
|
|---|
| 75 | -- Switch to insert mode
|
|---|
| 76 | insert_toggle
|
|---|
| 77 | fOverWrite = 1
|
|---|
| 78 | else
|
|---|
| 79 | fOverWrite = 0
|
|---|
| 80 | endif
|
|---|
| 81 |
|
|---|
| 82 | call NextCmdAltersText()
|
|---|
| 83 | getline LineStr
|
|---|
| 84 | Char = substr( LineStr, .col, 1)
|
|---|
| 85 | deletechar
|
|---|
| 86 | left
|
|---|
| 87 | keyin Char
|
|---|
| 88 | left
|
|---|
| 89 |
|
|---|
| 90 | if fOverWrite then
|
|---|
| 91 | insert_toggle
|
|---|
| 92 | endif
|
|---|
| 93 | .autosave = SavedAutosave
|
|---|
| 94 | return
|
|---|
| 95 |
|
|---|
| 96 | ; ---------------------------------------------------------------------------
|
|---|
| 97 | defc MoveCharRight
|
|---|
| 98 | SavedAutosave = .autosave
|
|---|
| 99 | .autosave = 0
|
|---|
| 100 | if not insert_state() then
|
|---|
| 101 | -- Switch to insert mode
|
|---|
| 102 | insert_toggle
|
|---|
| 103 | fOverWrite = 1
|
|---|
| 104 | else
|
|---|
| 105 | fOverWrite = 0
|
|---|
| 106 | endif
|
|---|
| 107 |
|
|---|
| 108 | call NextCmdAltersText()
|
|---|
| 109 | getline LineStr
|
|---|
| 110 | Char = substr( LineStr, .col, 1)
|
|---|
| 111 | deletechar
|
|---|
| 112 | right
|
|---|
| 113 | keyin Char
|
|---|
| 114 | left
|
|---|
| 115 |
|
|---|
| 116 | if fOverWrite then
|
|---|
| 117 | insert_toggle
|
|---|
| 118 | endif
|
|---|
| 119 | .autosave = SavedAutosave
|
|---|
| 120 | return
|
|---|
| 121 |
|
|---|
| 122 | ; ---------------------------------------------------------------------------
|
|---|
| 123 | defc MoveExpressionRight
|
|---|
| 124 | SeparatorList = arg( 1)
|
|---|
| 125 | call MoveExpr( 'R', arg( 1))
|
|---|
| 126 |
|
|---|
| 127 | ; ---------------------------------------------------------------------------
|
|---|
| 128 | defc MoveExpressionLeft
|
|---|
| 129 | SeparatorList = arg( 1)
|
|---|
| 130 | call MoveExpr( 'L', arg( 1))
|
|---|
| 131 |
|
|---|
| 132 | ; ---------------------------------------------------------------------------
|
|---|
| 133 | defproc MoveExpr
|
|---|
| 134 | Direction = upcase( arg( 1))
|
|---|
| 135 | if not wordpos( Direction, 'R L') then
|
|---|
| 136 | Direction = 'R'
|
|---|
| 137 | endif
|
|---|
| 138 | SeparatorList = arg( 2)
|
|---|
| 139 | if SeparatorList = '' then
|
|---|
| 140 | SeparatorList = ' ~`!%^&*()-+=][{}|\:;?/><,''"'\t
|
|---|
| 141 | endif
|
|---|
| 142 |
|
|---|
| 143 | SavedAutosave = .autosave
|
|---|
| 144 | .autosave = 0
|
|---|
| 145 | if not insert_state() then
|
|---|
| 146 | -- Switch to insert mode
|
|---|
| 147 | insert_toggle
|
|---|
| 148 | fOverWrite = 1
|
|---|
| 149 | else
|
|---|
| 150 | fOverWrite = 0
|
|---|
| 151 | endif
|
|---|
| 152 |
|
|---|
| 153 | call NextCmdAltersText()
|
|---|
| 154 | do once = 1 to 1
|
|---|
| 155 | getline LineStr
|
|---|
| 156 | CursorCol = .col
|
|---|
| 157 | Len = length( LineStr)
|
|---|
| 158 | RevLineStr = reverse( LineStr)
|
|---|
| 159 |
|
|---|
| 160 | -- Find first expression
|
|---|
| 161 | EndCol1 = verify( LineStr, SeparatorList, 'M', .col)
|
|---|
| 162 | if EndCol1 = CursorCol then
|
|---|
| 163 | 'SayError On a separator, move cursor to an expression first.'
|
|---|
| 164 | leave
|
|---|
| 165 | endif
|
|---|
| 166 | EndCol1 = EndCol1 - 1
|
|---|
| 167 | if EndCol1 < 1 then
|
|---|
| 168 | EndCol1 = Len
|
|---|
| 169 | endif
|
|---|
| 170 |
|
|---|
| 171 | VerifyStart = Len - CursorCol + 1
|
|---|
| 172 | RevEndCol1 = verify( RevLineStr, SeparatorList, 'M', VerifyStart)
|
|---|
| 173 | RevEndCol1 = RevEndCol1 - 1
|
|---|
| 174 | if RevEndCol1 < 1 then
|
|---|
| 175 | RevEndCol1 = Len
|
|---|
| 176 | endif
|
|---|
| 177 | StartCol1 = Len - RevEndCol1 + 1
|
|---|
| 178 | Expr1 = substr( LineStr, StartCol1, EndCol1 - StartCol1 + 1)
|
|---|
| 179 |
|
|---|
| 180 | if Direction = 'R' then
|
|---|
| 181 |
|
|---|
| 182 | -- Find next expression
|
|---|
| 183 | StartCol2 = verify( LineStr, SeparatorList, '', EndCol1 + 1)
|
|---|
| 184 | if not StartCol2 then
|
|---|
| 185 | 'SayError No second expression right from cursor found.'
|
|---|
| 186 | leave
|
|---|
| 187 | endif
|
|---|
| 188 | EndCol2 = verify( LineStr, SeparatorList, 'M', StartCol2)
|
|---|
| 189 | EndCol2 = EndCol2 - 1
|
|---|
| 190 | if EndCol2 < 1 then
|
|---|
| 191 | EndCol2 = Len
|
|---|
| 192 | endif
|
|---|
| 193 | Expr2 = substr( LineStr, StartCol2, EndCol2 - StartCol2 + 1)
|
|---|
| 194 | --dprintf( 'StartCol1 = 'StartCol1', EndCol1 = 'EndCol1', StartCol2 = 'StartCol2', EndCol2 = 'EndCol2 ||
|
|---|
| 195 | -- ', ['Expr1'] ['Expr2']')
|
|---|
| 196 |
|
|---|
| 197 | -- Build NewLineStr
|
|---|
| 198 | First = substr( LineStr, 1, StartCol1 - 1)
|
|---|
| 199 | Mid = substr( LineStr, EndCol1 + 1, StartCol2 - EndCol1 - 1)
|
|---|
| 200 | Last = substr( LineStr, EndCol2 + 1)
|
|---|
| 201 | NewLineStr = First''Expr2''Mid''Expr1''Last
|
|---|
| 202 | replaceline NewLineStr
|
|---|
| 203 | .col = length( First) + length( Expr2) + length( Mid) + (CursorCol - StartCol1) + 1
|
|---|
| 204 |
|
|---|
| 205 | else
|
|---|
| 206 |
|
|---|
| 207 | -- Find previous expression
|
|---|
| 208 | VerifyStart = Len - StartCol1 + 2
|
|---|
| 209 | RevEndCol2 = verify( RevLineStr, SeparatorList, '', VerifyStart)
|
|---|
| 210 | if not RevEndCol2 then
|
|---|
| 211 | 'SayError No second expression left from cursor found.'
|
|---|
| 212 | leave
|
|---|
| 213 | endif
|
|---|
| 214 | EndCol2 = Len - RevEndCol2 + 1
|
|---|
| 215 | RevEndCol2 = verify( RevLineStr, SeparatorList, 'M', RevEndCol2)
|
|---|
| 216 | RevEndCol2 = RevEndCol2 - 1
|
|---|
| 217 | if RevEndCol2 < 1 then
|
|---|
| 218 | RevEndCol2 = Len
|
|---|
| 219 | endif
|
|---|
| 220 | StartCol2 = Len - RevEndCol2 + 1
|
|---|
| 221 | Expr2 = substr( LineStr, StartCol2, EndCol2 - StartCol2 + 1)
|
|---|
| 222 | --dprintf( 'StartCol1 = 'StartCol1', EndCol1 = 'EndCol1', StartCol2 = 'StartCol2', EndCol2 = 'EndCol2 ||
|
|---|
| 223 | -- ', ['Expr1'] ['Expr2']')
|
|---|
| 224 |
|
|---|
| 225 | -- Build NewLineStr
|
|---|
| 226 | First = substr( LineStr, 1, StartCol2 - 1)
|
|---|
| 227 | Mid = substr( LineStr, EndCol2 + 1, StartCol1 - EndCol2 - 1)
|
|---|
| 228 | Last = substr( LineStr, EndCol1 + 1)
|
|---|
| 229 | NewLineStr = First''Expr1''Mid''Expr2''Last
|
|---|
| 230 | replaceline NewLineStr
|
|---|
| 231 | .col = length( First) + (CursorCol - StartCol1) + 1
|
|---|
| 232 |
|
|---|
| 233 | endif
|
|---|
| 234 | enddo
|
|---|
| 235 |
|
|---|
| 236 | if fOverWrite then
|
|---|
| 237 | insert_toggle
|
|---|
| 238 | endif
|
|---|
| 239 | .autosave = SavedAutosave
|
|---|
| 240 | return
|
|---|
| 241 |
|
|---|
