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OS/2 Shareware BBS: 5 Edit
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mlepm.zip
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emode.e
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1995-08-26
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9KB
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294 lines
/* emode.e - this is the E part of the E mode package 940522 */
/* The enter and space bar keys have been defined to do */
/* specific E3 editing features. */
/* 940522: Martin Lafaix (lafaix@sophia.inria.fr) */
/* */
/* .A new function : E_mode. It sets current editing mode to */
/* be E mode. */
/* */
/* 940510: Martin Lafaix (lafaix@sophia.inria.fr) */
/* */
/* .Adapting ekeys.e to hooks. */
/* */
/* This file is an adaptation of the EPM 'ekeys.e' E Macro file */
compile if not defined(BLACK)
const
my_e_keys_is_external = 1
INCLUDING_FILE = 'EMODE.E'
EXTRA_EX = 0
include 'stdconst.e'
compile else
const my_e_keys_is_external = 0
compile endif
compile if my_e_keys_is_external = 1
E_TABS = 3
E_MARGINS = 1 MAXMARGIN 1
WANT_CUA_MARKING = 'SWITCH'
ASSIST_TRIGGER = 'ENTER'
ENHANCED_ENTER_KEYS = 1
ENTER_ACTION = 'ADDATEND'
c_ENTER_ACTION = 'ADDLINE'
SYNTAX_INDENT = 3
compile endif
compile if INCLUDING_FILE <> 'EXTRA.E' -- Following only gets defined in the base
definit
compile if my_e_keys_is_external = 0
'maddhook load_hook e_load_hook'
compile endif
defc E_mode
keys my_e_keys
'msetfilemode E mode'
defc e_load_hook
universal load_ext
universal load_var
if load_ext='E' then
compile if E_TABS <> 0
if not (load_var // 2) then -- 1 would be on if tabs set from EA EPM.TABS
'tabs' E_TABS
endif
compile endif
compile if E_MARGINS <> 0
if not (load_var%2 - 2*(load_var%4)) then -- 2 would be on if tabs set from EA EPM.MARGINS
'ma' E_MARGINS
endif
compile endif
'E_mode'
endif
compile if WANT_CUA_MARKING & EPM
defkeys my_e_keys clear
compile else
defkeys my_e_keys
compile endif
def space=
universal expand_on
if expand_on then
if not my_e_first_expansion() then
keyin ' '
endif
else
keyin ' '
endif
undoaction 1, junk -- Create a new state
compile if ASSIST_TRIGGER = 'ENTER'
def enter=
compile if ENHANCED_ENTER_KEYS & ENTER_ACTION <> ''
universal enterkey
compile endif
compile else
def c_enter=
compile if ENHANCED_ENTER_KEYS & c_ENTER_ACTION <> ''
universal c_enterkey
compile endif
compile endif
universal ML_autoindent
universal expand_on
if expand_on then
if not my_e_second_expansion() then
compile if ASSIST_TRIGGER = 'ENTER'
compile if ENHANCED_ENTER_KEYS & ENTER_ACTION <> ''
call enter_common(enterkey)
compile else
call my_enter()
compile endif
compile else -- ASSIST_TRIGGER
compile if ENHANCED_ENTER_KEYS & c_ENTER_ACTION <> ''
call enter_common(c_enterkey)
compile else
call my_c_enter()
compile endif
compile endif -- ASSIST_TRIGGER
if ML_autoindent then
call indent_pos()
endif
endif
else
compile if ASSIST_TRIGGER = 'ENTER'
compile if ENHANCED_ENTER_KEYS & ENTER_ACTION <> ''
call enter_common(enterkey)
compile else
call my_enter()
compile endif
compile else -- ASSIST_TRIGGER
compile if ENHANCED_ENTER_KEYS & c_ENTER_ACTION <> ''
call enter_common(c_enterkey)
compile else
call my_c_enter()
compile endif
compile endif -- ASSIST_TRIGGER
endif
/* Taken out, interferes with some people's c_enter. */
;def c_enter= /* I like Ctrl-Enter to finish the comment field also. */
; getline line
; if pos('/*',line) then
; if not pos('*/',line) then
; end_line;keyin' */'
; endif
; endif
; down;begin_line
def c_x= /* Force expansion if we don't have it turned on automatic */
if not my_e_first_expansion() then
call my_e_second_expansion()
endif
defc indent_e_line
call indent_pos()
compile endif -- EXTRA
compile if not EXTRA_EX or INCLUDING_FILE = 'EXTRA.E' -- Following gets defined in EXTRA.EX if it's being used
defproc my_e_first_expansion
/* up;down */
retc=1
if .line then
getline line
line=strip(line,'T')
w=line
wrd=upcase(w)
if wrd='FOR' then
replaceline w' = to'
insertline substr(wrd,1,length(wrd)-3)'endfor',.line+1
if not insert_state() then insert_toggle
endif
keyin ' '
elseif wrd='IF' then
replaceline w' then'
insertline substr(wrd,1,length(wrd)-2)'else',.line+1
insertline substr(wrd,1,length(wrd)-2)'endif',.line+2
if not insert_state() then insert_toggle
call fixup_cursor()
endif
keyin ' '
elseif wrd='ELSEIF' then
replaceline w' then'
if not insert_state() then insert_toggle
call fixup_cursor()
endif
keyin ' '
elseif wrd='WHILE' then
replaceline w' do'
insertline substr(wrd,1,length(wrd)-5)'endwhile',.line+1
if not insert_state() then insert_toggle
call fixup_cursor()
endif
keyin ' '
elseif wrd='LOOP' then
replaceline w
insertline substr(wrd,1,length(wrd)-4)'endloop',.line+1
call einsert_line()
.col=.col+SYNTAX_INDENT
; elseif wrd='DO' then
; replaceline w
; insertline substr(wrd,1,length(wrd)-2)'enddo',.line+1
; keyin ' '
else
retc=0
endif
else
retc=0
endif
return retc
defproc my_e_second_expansion
retc=1
if .line then
getline line
parse value line with wrd rest
firstword=upcase(wrd)
if firstword='FOR' then
/* do tabs to fields of pascal for statement */
parse value upcase(line) with a '='
if length(a)>=.col then
.col=length(a)+3
else
parse value upcase(line) with a 'TO'
if length(a)>=.col then
.col=length(a)+4
else
call einsert_line()
.col=.col+SYNTAX_INDENT
endif
endif
elseif firstword='IF' or firstword='ELSEIF' or firstword='WHILE' or firstword='LOOP' or firstword='DO' or firstword='ELSE' then
if pos('END'firstword, upcase(line)) then
retc = 0
else
call einsert_line()
.col=.col+SYNTAX_INDENT
if firstword='LOOP' | firstword='DO' then
insertline substr(line,1,.col-SYNTAX_INDENT-1)'end'lowcase(wrd), .line+1
endif
endif
elseif pos('/*',line) then
; elseif substr(firstword,1,2)='/*' then /*see speed requirements */
if not pos('*/',line) then
end_line;keyin' */'
endif
call einsert_line()
else
retc=0
endif
else
retc=0
endif
return retc
defproc indent_pos /* Indent current line */
if .line then
oldline=.line
.line=.line-1
while .line & textline(.line)='' do
.line=.line-1
endwhile
if .line then
call pfirst_nonblank()
getline line
line=strip(line,'T')
parse value line with wrd rest
i=verify(wrd,'({:','M',1)-1
if i<=0 then i=length(wrd) endif
firstword=upcase(substr(wrd,1,i))
if firstword='FOR' then
.col=.col+SYNTAX_INDENT
elseif firstword='IF' or firstword='ELSEIF' or firstword='WHILE' or firstword='LOOP' or firstword='DO' or firstword='ELSE' then
if pos('END'firstword, upcase(line)) = 0 then
.col=.col+SYNTAX_INDENT
endif
endif
else
.col=1
endif
newpos=.col
.line=oldline
call pfirst_nonblank()
if .col<newpos then
for i=1 to newpos-.col
keyin ' '
endfor
elseif .col>newpos then
delta=.col-newpos; .col=.col-delta
for i=1 to delta
deletechar
endfor
endif
endif
compile endif -- EXTRA
compile if EVERSION >= 6
EA_comment 'This is an E editing mode, with automatic syntax expansion and indentation'
compile endif