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OS/2 Shareware BBS: 5 Edit
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mlepm.zip
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pmode.e
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1995-09-14
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10KB
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299 lines
/* pmode.e - this is the E part of the Pascal mode package 940522 */
/* The enter and space bar keys have been defined to do */
/* specific Pascal editing features. */
/* 940522: Martin Lafaix (lafaix@sophia.inria.fr) */
/* */
/* .A new function : Pascal_mode. It sets current editing mode to */
/* be Pascal mode. */
/* */
/* 940510: Martin Lafaix (lafaix@sophia.inria.fr) */
/* */
/* .Adapting pkeys.e to hooks. */
/* */
/* This file is an adaptation of the EPM 'pkeys.e' E Macro file */
compile if not defined(BLACK)
const
my_p_keys_is_external = 1
INCLUDING_FILE = 'PMODE.E'
EXTRA_EX = 0
include 'stdconst.e'
compile else
const my_p_keys_is_external = 0
compile endif
compile if my_p_keys_is_external = 1
P_TABS = 3
P_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_p_keys_is_external=0
'maddhook load_hook p_load_hook'
compile endif
defc Pascal_mode
keys my_pas_keys
'msetfilemode Pascal Mode'
defc p_load_hook
universal load_ext
universal load_var
if load_ext='PAS' or load_ext='PASCAL' then
compile if P_TABS <> 0
if not (load_var // 2) then -- 1 would be on if tabs set from EA EPM.TABS
'tabs' P_TABS
endif
compile endif
compile if P_MARGINS <> 0
if not (load_var%2 - 2*(load_var%4)) then -- 2 would be on if tabs set from EA EPM.MARGINS
'ma' P_MARGINS
endif
compile endif
'Pascal_mode'
endif
compile if WANT_CUA_MARKING & EPM
defkeys my_pas_keys clear
compile else
defkeys my_pas_keys
compile endif
compile if EVERSION >= 5
def space=
compile else
def ' '=
compile endif
universal expand_on
if expand_on then
if not pas_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 expand_on
if expand_on then
if not pas_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
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 pas_first_expansion() then
call pas_second_expansion()
endif
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 pas_first_expansion
retc=1
if .line then
getline line
line=strip(line,'T')
w=line
wrd=upcase(w)
if wrd='FOR' then
replaceline w' := to do begin'
insertline substr(wrd,1,length(wrd)-3)'end; {endfor}',.line+1
if not insert_state() then insert_toggle
call fixup_cursor()
endif
keyin ' '
elseif wrd='IF' then
replaceline w' then begin'
insertline substr(wrd,1,length(wrd)-2)'end else begin',.line+1
insertline substr(wrd,1,length(wrd)-2)'end; {endif}',.line+2
if not insert_state() then insert_toggle
call fixup_cursor()
endif
keyin ' '
elseif wrd='WHILE' then
replaceline w' do begin'
insertline substr(wrd,1,length(wrd)-5)'end; {endwhile}',.line+1
if not insert_state() then insert_toggle
call fixup_cursor()
endif
keyin ' '
elseif wrd='REPEAT' then
replaceline w
insertline substr(wrd,1,length(wrd)-6)'until ; {endrepeat}',.line+1
call einsert_line()
.col=.col+SYNTAX_INDENT
elseif wrd='CASE' then
replaceline w' of'
insertline substr(wrd,1,length(wrd)-4)'end; {endcase}',.line+1
if not insert_state() then insert_toggle
call fixup_cursor()
endif
keyin ' '
else
retc=0
endif
else
retc=0
endif
return retc
defproc pas_second_expansion
retc=1
if .line then
getline line
parse value upcase(line) with 'BEGIN' +0 a /* get stuff after begin */
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)+4
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 a='BEGIN' or firstword='BEGIN' or firstword='CASE' or firstword='REPEAT' then /* firstword or last word begin?*/
; if firstword='BEGIN' then
; replaceline wrd rest
; insert;.col=SYNTAX_INDENT+1
; else
call einsert_line()
.col=.col+SYNTAX_INDENT
; endif
elseif firstword='VAR' or firstword='CONST' or firstword='TYPE' or firstword='LABEL' then
if substr(line,1,2)<>' ' or substr(line,1,3)=' ' then
getline line2
replaceline substr('',1,SYNTAX_INDENT)||wrd rest -- <indent> spaces
call einsert_line();.col=.col+SYNTAX_INDENT
else
call einsert_line()
endif
elseif firstword='PROGRAM' then
/* make up a nice program block */
parse value rest with name ';'
getline bottomline,.last
parse value bottomline with lastname .
if lastname = 'end.' then
retc= 0 /* no expansion */
else
; replaceline wrd rest
call einsert_line()
insertline 'begin {' name '}',.last+1
insertline 'end. {' name '}',.last+1
endif
elseif firstword='UNIT' then -- Added by M. Such
/* make up a nice unit block */
parse value rest with name ';'
getline bottomline,.last
parse value bottomline with lastname .
if lastname = 'end.' then
retc= 0 /* no expansion */
else
; replaceline wrd rest
call einsert_line()
insertline 'interface',.last+1
insertline 'implementation',.last+1
insertline 'end. {' name '}',.last+1
endif
elseif firstword='PROCEDURE' then
/* make up a nice program block */
name= getheading_name(rest)
; replaceline wrd rest
call einsert_line()
insertline 'begin {' name '}',.line+1
insertline 'end; {' name '}',.line+2
elseif firstword='FUNCTION' then
/* make up a nice program block */
name=getheading_name(rest)
; replaceline wrd rest
call einsert_line()
insertline 'begin {' name '}',.line+1
insertline 'end; {' name '}',.line+2
elseif pos('{',line) then
if not pos('}',line) then
end_line;keyin' }'
endif
call einsert_line()
else
retc=0
endif
else
retc=0
endif
return retc
defproc getheading_name /* (heading ) name of heading */
return substr(arg(1),1,max(0,verify(upcase(arg(1)),
'ABCDEFGHIJKLMNOPQRSTUVWXYZ_0123456789')-1))
compile endif -- EXTRA
compile if EVERSION >= 6
EA_comment 'This is a Pascal editing mode, with automatic syntax expansion and indentation'
compile endif