OS/2 Professional/OS2PRO194.ISO/os2/prgramer/rexx/4macrs/smartc.rex

OS/2 REXX Batch file | 1993-05-27 | 9.7 KB | 411 lines

/* extended smart c template editing for SourceLink32 */
/*
   Creation        93/03/12 by  Thomas Korfhage, tel&fax ++49 6446 2931
                                                 CIS: 100271,16
   Description
   This macro has 4 entrys.

   If there is an argument it might be either UP, DOWN or FCTYPE.

   UP     - goto prev. function header. (match { at pos 1)
   DOWN   - goto next  function header. (match { at pos 1)
   FCTYPE - asume the actual line is a complete function declaration.
            Take this and insert it under the first FTY eyecatcher comment
            found in file and append a ';'.

   any other argument will be ignored and the macro will do a C-template
   edition. It will expand one or more letters to a C-template
   i -> if; e -> else; f -> for; w -> while; d -> do.while; b or { -> braces

   if the letter(s) are lower case a short template will be created
      e.g.   i ->  if ()

   if the letter(s) are upper case the result is a full template (with braces)
      e.g.   I ->  if () {
                   }
    all text following the letter(s) on the same line goes into the parens.

    (cl, ce, h are unchanged from the original SLINK2 SMARTC.REX)

   If any text is selected, the user will be asked for the type of template
   before the template will be created arround it.
   The selected text then becomes the body of the block.
   Normaly only full lines should be selected.

   The created template are adapted to my style.
   Indentation will be 1 tab.
*/
'S_CLEAR_MACRO_OUTPUT'
if ARG(1,'E')then do
   ARG ExtFunc
   if Wordpos( ExtFunc, 'UP DOWN FCTYPE') \= 0 then do
      'S_DISABLE_WINDOW'
      Signal Value ExtFunc
   end
   exit
end
'S_GET_SELECTED_SIZE' 'Len'
If Len <= 1 THEN SIGNAL SMART_UNSEL
'S_PROMPT Create block over selected code (i-e-f-w-d-b-{), CCode'
'S_DISABLE_WINDOW'
'S_CUT_SEL_TO_PASTE'
'S_GET_LINE_NUM' 'SaveLineNum'
'S_GET_COL_NUM' 'SaveColNum'
'S_INDENT'
SELECT
   WHEN abbrev( 'if', CCode, 1 ) THEN
   do
   'S_INSERT_LINE' 'if () {'
   NrBS = 3
   end

   WHEN abbrev( 'while', CCode, 1 ) THEN
   do
  'S_INSERT_LINE' 'while () {'
   NrBS = 3
   end

   WHEN abbrev( 'for', CCode, 1 ) THEN
   do
  'S_INSERT_LINE' 'for (;;) {'
   NrBS = 5
   end

   WHEN (WCode = '{') | abbrev( 'b', CCode, 1 ) THEN
   do
  'S_INSERT_LINE' '{'
   NrBS = 0
   end

   WHEN abbrev( 'do', CCode, 1 ) THEN
   do
  'S_INSERT_LINE' 'do {'
  'S_INDENT'
  'S_INSERT_LINE' '} while (#) ;'
  call insertpaste
  'S_SEARCH_FWD' 1 0 '} while (#) ;'
  'S_END_OF_LINE'
  'S_PREV_CHAR'
  'S_PREV_CHAR'
  'S_PREV_CHAR'
  'S_PREV_CHAR'
  'S_DEL_CHAR'
  'S_ENABLE_WINDOW'
   EXIT
   end

   OTHERWISE
   'S_INSERT_PASTE'
   'S_ENABLE_WINDOW'
   EXIT
end
'S_INDENT'
'S_INSERT_LINE' '}'
call insertpaste
'S_GOTO_LINE' SaveLineNum
'S_GOTO_COL' SaveColNum
'S_END_OF_LINE'
DO I=1 TO NrBS
'S_PREV_CHAR'
end
'S_ENABLE_WINDOW'
EXIT

SMART_UNSEL:
'S_GET_CURR_WORD' 'WCode'
CCode = WCode
CCode = translate( WCode)
FULLCode = WCode == CCode
MoreInLine = 0

SELECT

   WHEN abbrev( 'IF', CCode, 1 ) THEN
      do
      call isMoreInLine
      MoreInLine = RESULT
      call insertcode( "if ()" )
      'S_PREV_CHAR'
      end

   WHEN abbrev( 'ELSE', CCode, 1 ) THEN
      do
      call insertcode( "else" )
      if FULLCode == 1 then do
         'S_END_OF_LINE'
         ADDSTR = '  '
         'S_INSERT_LINE' ADDSTR
         'S_INDENT'
         'S_INSERT_STRING' ADDSTR
         'S_END_OF_LINE'
      end
      else do
         'S_END_OF_LINE'
         ADDSTR = ' '
         'S_INSERT_STRING' ADDSTR
      end
      end

   WHEN abbrev( 'WHILE', CCode, 1 ) THEN
      do
      call isMoreInLine
      MoreInLine = RESULT
      call insertcode( "while ()" )
      'S_PREV_CHAR'
      end

   WHEN abbrev( 'SWITCH', CCode, 1 ) THEN
      do
      call isMoreInLine
      MoreInLine = RESULT
      call insertcode( "switch ()" )
      'S_PREV_CHAR'
      end

   WHEN abbrev( 'CASE', CCode, 1 ) THEN
      do
      call insertcode( "case :" )
      'S_PREV_CHAR'
      end

   WHEN abbrev( 'FOR', CCode, 1 ) THEN
      do
      call insertcode( "for( ; ; )" )
      'S_PREV_CHAR'
      'S_PREV_CHAR'
      'S_PREV_CHAR'
      'S_PREV_CHAR'
      'S_PREV_CHAR'
      end

   WHEN abbrev( 'DO', CCode, 1 ) THEN
      do
      call insertline( "do" )          /* do             */
      ADDSTR = '{'
      'S_INSERT_LINE' ADDSTR           /* {              */
      'S_INDENT'
      ADDSTR = ' '
      'S_INSERT_LINE' ADDSTR           /* blank line     */
      'S_INDENT'
      'S_PREV_CHAR'
      ADDSTR = '} while( )'
      'S_INSERT_LINE' ADDSTR           /* } while ()     */
      'S_PREV_LINE'
      'S_PREV_LINE'
      'S_INDENT'
      ADDSTR = ' '
      'S_INSERT_STRING' ADDSTR
      end

   WHEN WCode = 'b' | WCode = '{' THEN
      do
      call insertline( "{" )
      ADDSTR = '  '
      'S_INSERT_LINE' ADDSTR
      'S_INDENT'
      'S_PREV_CHAR'
      ADDSTR = '}'
      'S_INSERT_STRING' ADDSTR
      'S_PREV_LINE'
      'S_END_OF_LINE'
      end


   WHEN WCode = 'cl' THEN
      do
      'S_PROMPT' 'Enter Comment,' 'Comment'
      NEWCODE = '/* ' || Comment '*/'
      call insertcode( NEWCODE )
      'S_INSERT_LINE' ' '
      'S_INDENT'
      end

   WHEN WCode = 'ce' THEN
      do
      'S_PROMPT' 'Enter Comment,' 'Comment'
      'S_SELECT_WORD'
      'S_DEL_SELECTED'
      StrLen = LENGTH( Comment )
      Justify = 'LEFT'

      IF Justify = 'RIGHT'  THEN
         IF ( StrLen >= 70 ) THEN
            CommentCol = 1
         ELSE
            CommentCol = 70 - StrLen + 1
      ELSE
         CommentCol = 45

      'S_END_OF_LINE'
      IF rc \= 0 THEN DO
         SAY 'S_ Error = ' rc
         EXIT
         END

      'S_GET_COL_NUM' 'CURRCOL'
      IF rc \= 0 THEN DO
         SAY 'S_ Error = ' rc
         EXIT
         END

      IF CurrCol < CommentCol THEN
         DO
         'S_GOTO_COL' CommentCol
         'S_INSERT_STRING' '// ' || Comment
         END
      ELSE
         DO
         'S_PREV_LINE'
         'S_END_OF_LINE'
         ForceNewLine = ' '
         'S_INSERT_LINE' ForceNewLine
         NewComment = COPIES(' ', CommentCol - 1 ) || '// ' || Comment
         'S_INSERT_STRING' NewComment
         END

      end

   WHEN WCode = 'h' THEN
      do
      'S_SELECT_WORD'
      'S_DEL_SELECTED'
      'S_PROMPT' 'Enter Function Comments,' 'NEWFILENAME'

      comment = '/'|| copies('*',67)
      'S_INSERT_LINE' comment

      'S_INSERT_LINE' '*'
      'S_INSERT_LINE' '*  ' || NEWFILENAME
      'S_INSERT_LINE' '*'
      comment = copies('*',67) || '/'
      'S_INSERT_LINE' comment

      end

      OTHERWISE
      NOP
end
exit

insertcode: procedure expose MoreInLine FULLCode
      parse arg CodeToAdd
      'S_SELECT_WORD'
      'S_DEL_SELECTED'
      'S_INSERT_STRING' CodeToAdd
      if MoreInLine == 1 then do
         'S_PREV_CHAR'
         'S_DEL_CHAR'
         'S_DEL_CHAR'
         'S_END_OF_LINE'
         do forever
            'S_PREV_CHAR'
            'S_GET_CURR_CHAR' 'curchar'
            if (curchar \= " " & curchar \= ";") then leave
            'S_DEL_CHAR'
         end
         'S_NEXT_CHAR'
         'S_INSERT_STRING' ')'
      end
      if FULLCode == 1 then do
         'S_GET_LINE_NUM' 'SaveLineNum'
         'S_GET_COL_NUM' 'SaveColNum'
         'S_INSERT_LINE' ' {'
         'S_INDENT'
         'S_INSERT_STRING }'
         'S_GOTO_LINE' SaveLineNum
         'S_GOTO_COL' SaveColNum
      end
      return

insertline: procedure
      parse arg CodeToAdd
      'S_SELECT_WORD'
      'S_DEL_SELECTED'
      'S_INSERT_LINE' CodeToAdd
      'S_INDENT'
      return

insertpaste: procedure
   'S_PREV_LINE'
   'S_GET_LINE_NUM' 'ZAnum'
   'S_INSERT_PASTE'
   'S_GET_LINE_NUM' 'ZEnum'
   'S_GOTO_LINE' ZAnum

   AddTab = '9'x
   do I=ZAnum+1 to ZEnum by 1
      'S_BEG_OF_LINE'
      'S_INSERT_STRING' AddTab
      'S_NEXT_LINE'
   end
   return

isMoreInLine: procedure
   'S_GET_COL_NUM' 'Col'
   'S_GET_LINE_LEN' 'LLen'
   return LLen > (Col+2)

UP:   /* search back line with brace at 1 pos */
'S_GET_LINE_NUM' 'SaveLineNum'
'S_GET_COL_NUM' 'SaveColNum'
'S_SEARCH_BACK' 1 '{'
do forever
   if RC = 0 then do
      'S_GET_COL_NUM' 'ColNum'
      if ColNum <= 2 then do
         'S_ENABLE_WINDOW'
         exit
      end
      else
         'S_SEARCH_NEXT'
   end
   else
      leave
end
'S_GOTO_LINE' SaveLineNum
'S_GOTO_COL' SaveColNum
'S_ENABLE_WINDOW'
exit

DOWN: /* search forward for line with brace at 1 pos */
'S_GET_LINE_NUM' 'SaveLineNum'
'S_GET_COL_NUM' 'SaveColNum'
'S_SEARCH_FWD' 1 0 '{'
do forever
   if RC = 0 then do
      'S_GET_COL_NUM' 'ColNum'
      if ColNum <= 2 then do
         'S_ENABLE_WINDOW'
         exit
      end
      else
         'S_SEARCH_NEXT'
   end
   else
      leave
end
'S_GOTO_LINE' SaveLineNum
'S_GOTO_COL' SaveColNum
'S_ENABLE_WINDOW'
exit

/* Get the function header an put it unter the FTY - comment on top of file */
/* Current position has to be the line containing the function declaration  */
/* For my needs only 1 line is ok. Change the code for more lines */
FCTYPE:
'S_GET_LINE_NUM' 'SaveLineNum'
'S_GET_COL_NUM' 'SaveColNum'
'S_SELECT_LINE'
'S_GET_SELECTED_TEXT' 'FtyLine'
'S_SEARCH_FWD' 1 1 '/*FTY*/'
if RC = 0 then do
   'S_NEXT_LINE'
   'S_BEG_OF_LINE'
   'S_INSERT_STRING' INSERT(';',FtyLine,LENGTH(FtyLine)-2)
end
'S_GOTO_LINE' SaveLineNum+1
'S_GOTO_COL' SaveColNum
'S_ENABLE_WINDOW'
exit