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idlwave: Abbreviations

 
 4.8 Abbreviations
 =================
 
 Special abbreviations exist to enable rapid entry of commonly used
 commands.  Emacs abbreviations are expanded by typing text into the
 buffer and pressing <SPC> or <RET>.  The special abbreviations used to
 insert code templates all start with a ‘\’ (the backslash), or,
 optionally, any other character set in ‘idlwave-abbrev-start-char’.
 IDLWAVE ensures that abbreviations are only expanded where they should
 be (i.e., not in a string or comment), and permits the point to be moved
 after an abbreviation expansion: very useful for positioning the mark
 inside of parentheses, etc.
 
    Special abbreviations are pre-defined for code templates and other
 useful items.  To visit the full list of abbreviations, use ‘M-x
 idlwave-list-abbrevs’.
 
    Template abbreviations:
 
 ‘\pr’       ‘PROCEDURE’ template
 ‘\fu’       ‘FUNCTION’ template
 ‘\c’        ‘CASE’ statement template
 ‘\f’        ‘FOR’ loop template
 ‘\r’        ‘REPEAT’ loop template
 ‘\w’        ‘WHILE’ loop template
 ‘\i’        ‘IF’ statement template
 ‘\elif’     ‘IF-ELSE’ statement template
 
    String abbreviations:
 
 ‘\ap’       ‘arg_present()’
 ‘\b’        ‘begin’
 ‘\cb’       ‘byte()’
 ‘\cc’       ‘complex()’
 ‘\cd’       ‘double()’
 ‘\cf’       ‘float()’
 ‘\cl’       ‘long()’
 ‘\co’       ‘common’
 ‘\cs’       ‘string()’
 ‘\cx’       ‘fix()’
 ‘\e’        ‘else’
 ‘\ec’       ‘endcase’
 ‘\ee’       ‘endelse’
 ‘\ef’       ‘endfor’
 ‘\ei’       ‘endif else if’
 ‘\el’       ‘endif else’
 ‘\en’       ‘endif’
 ‘\er’       ‘endrep’
 ‘\es’       ‘endswitch’
 ‘\ew’       ‘endwhile’
 ‘\g’        ‘goto,’
 ‘\h’        ‘help,’
 ‘\ik’       ‘if keyword_set() then’
 ‘\iap’      ‘if arg_present() then’
 ‘\ine’      ‘if n_elements() eq 0 then’
 ‘\inn’      ‘if n_elements() ne 0 then’
 ‘\k’        ‘keyword_set()’
 ‘\n’        ‘n_elements()’
 ‘\np’       ‘n_params()’
 ‘\oi’       ‘on_ioerror,’
 ‘\or’       ‘openr,’
 ‘\ou’       ‘openu,’
 ‘\ow’       ‘openw,’
 ‘\p’        ‘print,’
 ‘\pt’       ‘plot,’
 ‘\pv’       ‘ptr_valid()’
 ‘\re’       ‘read,’
 ‘\rf’       ‘readf,’
 ‘\rt’       ‘return’
 ‘\ru’       ‘readu,’
 ‘\s’        ‘size()’
 ‘\sc’       ‘strcompress()’
 ‘\sl’       ‘strlowcase()’
 ‘\sm’       ‘strmid()’
 ‘\sn’       ‘strlen()’
 ‘\sp’       ‘strpos()’
 ‘\sr’       ‘strtrim()’
 ‘\st’       ‘strput()’
 ‘\su’       ‘strupcase()’
 ‘\t’        ‘then’
 ‘\u’        ‘until’
 ‘\wc’       ‘widget_control,’
 ‘\wi’       ‘widget_info()’
 ‘\wu’       ‘writeu,’
 
 You can easily add your own abbreviations or override existing abbrevs
 with ‘define-abbrev’ in your mode hook, using the convenience function
 ‘idlwave-define-abbrev’:
 
      (add-hook 'idlwave-mode-hook
                (lambda ()
                  (idlwave-define-abbrev "wb" "widget_base()"
                           (idlwave-keyword-abbrev 1))
                  (idlwave-define-abbrev "ine" "IF N_Elements() EQ 0 THEN"
                           (idlwave-keyword-abbrev 11))))
 
    Notice how the abbreviation (here _wb_) and its expansion
 (_widget_base()_) are given as arguments, and the single argument to
 ‘idlwave-keyword-abbrev’ (here _1_) specifies how far back to move the
 point upon expansion (in this example, to put it between the
 parentheses).
 
    The abbreviations are expanded in upper or lower case, depending upon
 the variables ‘idlwave-abbrev-change-case’ and, for reserved word
 templates, ‘idlwave-reserved-word-upcase’ (Case Changes).
 
  -- User Option: idlwave-abbrev-start-char (‘"\"’)
      A single character string used to start abbreviations in abbrev
      mode.  Beware of common characters which might naturally occur in
      sequence with abbreviation strings.
 
  -- User Option: idlwave-abbrev-move (‘t’)
      Non-‘nil’ means the abbrev hook can move point, e.g., to end up
      between the parentheses of a function call.
 

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