3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Asger Alstrup
7 * \author Lars Gullik Bjønnes
8 * \author Dov Feldstern
9 * \author Jean-Marc Lasgouttes
11 * \author André Pönitz
12 * \author Stefan Schimanski
14 * \author Jürgen Vigna
16 * Full author contact details are available in file CREDITS.
25 #include "buffer_funcs.h"
26 #include "BufferParams.h"
27 #include "BufferView.h"
29 #include "CompletionList.h"
31 #include "CutAndPaste.h"
32 #include "DispatchResult.h"
34 #include "ErrorList.h"
35 #include "FuncRequest.h"
41 #include "Paragraph.h"
42 #include "paragraph_funcs.h"
43 #include "ParagraphParameters.h"
44 #include "ParIterator.h"
45 #include "TextClass.h"
46 #include "TextMetrics.h"
48 #include "WordLangTuple.h"
51 #include "insets/InsetText.h"
52 #include "insets/InsetBibitem.h"
53 #include "insets/InsetCaption.h"
54 #include "insets/InsetLine.h"
55 #include "insets/InsetNewline.h"
56 #include "insets/InsetNewpage.h"
57 #include "insets/InsetOptArg.h"
58 #include "insets/InsetSpace.h"
59 #include "insets/InsetSpecialChar.h"
60 #include "insets/InsetTabular.h"
62 #include "support/lassert.h"
63 #include "support/convert.h"
64 #include "support/debug.h"
65 #include "support/docstream.h"
66 #include "support/gettext.h"
67 #include "support/lstrings.h"
68 #include "support/textutils.h"
70 #include <boost/next_prior.hpp>
75 using namespace lyx::support
;
79 using cap::cutSelection
;
80 using cap::pasteParagraphList
;
84 void readParToken(Buffer
const & buf
, Paragraph
& par
, Lexer
& lex
,
85 string
const & token
, Font
& font
, Change
& change
, ErrorList
& errorList
)
87 BufferParams
const & bp
= buf
.params();
89 if (token
[0] != '\\') {
90 docstring dstr
= lex
.getDocString();
91 par
.appendString(dstr
, font
, change
);
93 } else if (token
== "\\begin_layout") {
95 docstring layoutname
= lex
.getDocString();
97 font
= Font(inherit_font
, bp
.language
);
98 change
= Change(Change::UNCHANGED
);
100 DocumentClass
const & tclass
= bp
.documentClass();
102 if (layoutname
.empty())
103 layoutname
= tclass
.defaultLayoutName();
105 if (par
.forcePlainLayout()) {
106 // in this case only the empty layout is allowed
107 layoutname
= tclass
.emptyLayoutName();
108 } else if (par
.usePlainLayout()) {
109 // in this case, default layout maps to empty layout
110 if (layoutname
== tclass
.defaultLayoutName())
111 layoutname
= tclass
.emptyLayoutName();
113 // otherwise, the empty layout maps to the default
114 if (layoutname
== tclass
.emptyLayoutName())
115 layoutname
= tclass
.defaultLayoutName();
118 // When we apply an unknown layout to a document, we add this layout to the textclass
119 // of this document. For example, when you apply class article to a beamer document,
120 // all unknown layouts such as frame will be added to document class article so that
121 // these layouts can keep their original names.
122 tclass
.addLayoutIfNeeded(layoutname
);
124 par
.setLayout(bp
.documentClass()[layoutname
]);
126 // Test whether the layout is obsolete.
127 Layout
const & layout
= par
.layout();
128 if (!layout
.obsoleted_by().empty())
129 par
.setLayout(bp
.documentClass()[layout
.obsoleted_by()]);
131 par
.params().read(lex
);
133 } else if (token
== "\\end_layout") {
134 LYXERR0("Solitary \\end_layout in line " << lex
.lineNumber() << "\n"
135 << "Missing \\begin_layout ?");
136 } else if (token
== "\\end_inset") {
137 LYXERR0("Solitary \\end_inset in line " << lex
.lineNumber() << "\n"
138 << "Missing \\begin_inset ?");
139 } else if (token
== "\\begin_inset") {
140 Inset
* inset
= readInset(lex
, buf
);
142 par
.insertInset(par
.size(), inset
, font
, change
);
145 docstring line
= lex
.getDocString();
146 errorList
.push_back(ErrorItem(_("Unknown Inset"), line
,
147 par
.id(), 0, par
.size()));
149 } else if (token
== "\\family") {
151 setLyXFamily(lex
.getString(), font
.fontInfo());
152 } else if (token
== "\\series") {
154 setLyXSeries(lex
.getString(), font
.fontInfo());
155 } else if (token
== "\\shape") {
157 setLyXShape(lex
.getString(), font
.fontInfo());
158 } else if (token
== "\\size") {
160 setLyXSize(lex
.getString(), font
.fontInfo());
161 } else if (token
== "\\lang") {
163 string
const tok
= lex
.getString();
164 Language
const * lang
= languages
.getLanguage(tok
);
166 font
.setLanguage(lang
);
168 font
.setLanguage(bp
.language
);
169 lex
.printError("Unknown language `$$Token'");
171 } else if (token
== "\\numeric") {
173 font
.fontInfo().setNumber(font
.setLyXMisc(lex
.getString()));
174 } else if (token
== "\\emph") {
176 font
.fontInfo().setEmph(font
.setLyXMisc(lex
.getString()));
177 } else if (token
== "\\bar") {
179 string
const tok
= lex
.getString();
182 font
.fontInfo().setUnderbar(FONT_ON
);
183 else if (tok
== "no")
184 font
.fontInfo().setUnderbar(FONT_OFF
);
185 else if (tok
== "default")
186 font
.fontInfo().setUnderbar(FONT_INHERIT
);
188 lex
.printError("Unknown bar font flag "
190 } else if (token
== "\\noun") {
192 font
.fontInfo().setNoun(font
.setLyXMisc(lex
.getString()));
193 } else if (token
== "\\color") {
195 setLyXColor(lex
.getString(), font
.fontInfo());
196 } else if (token
== "\\SpecialChar") {
197 auto_ptr
<Inset
> inset
;
198 inset
.reset(new InsetSpecialChar
);
200 par
.insertInset(par
.size(), inset
.release(),
202 } else if (token
== "\\backslash") {
203 par
.appendChar('\\', font
, change
);
204 } else if (token
== "\\LyXTable") {
205 auto_ptr
<Inset
> inset(new InsetTabular(buf
));
207 par
.insertInset(par
.size(), inset
.release(), font
, change
);
208 } else if (token
== "\\lyxline") {
209 par
.insertInset(par
.size(), new InsetLine
, font
, change
);
210 } else if (token
== "\\change_unchanged") {
211 change
= Change(Change::UNCHANGED
);
212 } else if (token
== "\\change_inserted") {
214 istringstream
is(lex
.getString());
218 if (aid
>= bp
.author_map
.size()) {
219 errorList
.push_back(ErrorItem(_("Change tracking error"),
220 bformat(_("Unknown author index for insertion: %1$d\n"), aid
),
221 par
.id(), 0, par
.size()));
222 change
= Change(Change::UNCHANGED
);
224 change
= Change(Change::INSERTED
, bp
.author_map
[aid
], ct
);
225 } else if (token
== "\\change_deleted") {
227 istringstream
is(lex
.getString());
231 if (aid
>= bp
.author_map
.size()) {
232 errorList
.push_back(ErrorItem(_("Change tracking error"),
233 bformat(_("Unknown author index for deletion: %1$d\n"), aid
),
234 par
.id(), 0, par
.size()));
235 change
= Change(Change::UNCHANGED
);
237 change
= Change(Change::DELETED
, bp
.author_map
[aid
], ct
);
240 errorList
.push_back(ErrorItem(_("Unknown token"),
241 bformat(_("Unknown token: %1$s %2$s\n"), from_utf8(token
),
243 par
.id(), 0, par
.size()));
248 void readParagraph(Buffer
const & buf
, Paragraph
& par
, Lexer
& lex
,
249 ErrorList
& errorList
)
252 string token
= lex
.getString();
254 Change
change(Change::UNCHANGED
);
257 readParToken(buf
, par
, lex
, token
, font
, change
, errorList
);
260 token
= lex
.getString();
265 if (token
== "\\end_layout") {
266 //Ok, paragraph finished
270 LYXERR(Debug::PARSER
, "Handling paragraph token: `" << token
<< '\'');
271 if (token
== "\\begin_layout" || token
== "\\end_document"
272 || token
== "\\end_inset" || token
== "\\begin_deeper"
273 || token
== "\\end_deeper") {
274 lex
.pushToken(token
);
275 lyxerr
<< "Paragraph ended in line "
276 << lex
.lineNumber() << "\n"
277 << "Missing \\end_layout.\n";
281 // Final change goes to paragraph break:
282 par
.setChange(par
.size(), change
);
284 // Initialize begin_of_body_ on load; redoParagraph maintains
285 par
.setBeginOfBody();
291 class TextCompletionList
: public CompletionList
295 TextCompletionList(Cursor
const & cur
)
296 : buf_(cur
.buffer()), pos_(0) {}
298 virtual ~TextCompletionList() {}
301 virtual bool sorted() const { return true; }
303 virtual size_t size() const
305 return theWordList().size();
308 virtual docstring
const & data(size_t idx
) const
310 return theWordList().word(idx
);
321 bool Text::empty() const
323 return pars_
.empty() || (pars_
.size() == 1 && pars_
[0].empty()
324 // FIXME: Should we consider the labeled type as empty too?
325 && pars_
[0].layout().labeltype
== LABEL_NO_LABEL
);
329 double Text::spacing(Buffer
const & buffer
, Paragraph
const & par
) const
331 if (par
.params().spacing().isDefault())
332 return buffer
.params().spacing().getValue();
333 return par
.params().spacing().getValue();
337 void Text::breakParagraph(Cursor
& cur
, bool inverse_logic
)
339 LASSERT(this == cur
.text(), /**/);
341 Paragraph
& cpar
= cur
.paragraph();
342 pit_type cpit
= cur
.pit();
344 DocumentClass
const & tclass
= cur
.buffer().params().documentClass();
345 Layout
const & layout
= cpar
.layout();
347 // this is only allowed, if the current paragraph is not empty
348 // or caption and if it has not the keepempty flag active
349 if (cur
.lastpos() == 0 && !cpar
.allowEmpty() &&
350 layout
.labeltype
!= LABEL_SENSITIVE
)
353 // a layout change may affect also the following paragraph
354 recUndo(cur
, cur
.pit(), undoSpan(cur
.pit()) - 1);
356 // Always break behind a space
357 // It is better to erase the space (Dekel)
358 if (cur
.pos() != cur
.lastpos() && cpar
.isLineSeparator(cur
.pos()))
359 cpar
.eraseChar(cur
.pos(), cur
.buffer().params().trackChanges
);
361 // What should the layout for the new paragraph be?
362 bool keep_layout
= inverse_logic
?
363 !layout
.isEnvironment()
364 : layout
.isEnvironment();
366 // We need to remember this before we break the paragraph, because
367 // that invalidates the layout variable
368 bool sensitive
= layout
.labeltype
== LABEL_SENSITIVE
;
370 // we need to set this before we insert the paragraph.
371 bool const isempty
= cpar
.allowEmpty() && cpar
.empty();
373 lyx::breakParagraph(cur
.buffer().params(), paragraphs(), cpit
,
374 cur
.pos(), keep_layout
);
376 // After this, neither paragraph contains any rows!
379 pit_type next_par
= cpit
+ 1;
381 // well this is the caption hack since one caption is really enough
384 // set to standard-layout
385 //FIXME Check if this should be emptyLayout() in some cases
386 pars_
[cpit
].applyLayout(tclass
.defaultLayout());
388 // set to standard-layout
389 //FIXME Check if this should be emptyLayout() in some cases
390 pars_
[next_par
].applyLayout(tclass
.defaultLayout());
393 while (!pars_
[next_par
].empty() && pars_
[next_par
].isNewline(0)) {
394 if (!pars_
[next_par
].eraseChar(0, cur
.buffer().params().trackChanges
))
395 break; // the character couldn't be deleted physically due to change tracking
398 updateLabels(cur
.buffer());
400 // A singlePar update is not enough in this case.
401 cur
.updateFlags(Update::Force
);
403 // This check is necessary. Otherwise the new empty paragraph will
404 // be deleted automatically. And it is more friendly for the user!
405 if (cur
.pos() != 0 || isempty
)
406 setCursor(cur
, cur
.pit() + 1, 0);
408 setCursor(cur
, cur
.pit(), 0);
412 // insert a character, moves all the following breaks in the
413 // same Paragraph one to the right and make a rebreak
414 void Text::insertChar(Cursor
& cur
, char_type c
)
416 LASSERT(this == cur
.text(), /**/);
418 cur
.recordUndo(INSERT_UNDO
);
420 TextMetrics
const & tm
= cur
.bv().textMetrics(this);
421 Buffer
const & buffer
= cur
.buffer();
422 Paragraph
& par
= cur
.paragraph();
423 // try to remove this
424 pit_type
const pit
= cur
.pit();
426 bool const freeSpacing
= par
.layout().free_spacing
||
429 if (lyxrc
.auto_number
) {
430 static docstring
const number_operators
= from_ascii("+-/*");
431 static docstring
const number_unary_operators
= from_ascii("+-");
432 static docstring
const number_seperators
= from_ascii(".,:");
434 if (cur
.current_font
.fontInfo().number() == FONT_ON
) {
435 if (!isDigit(c
) && !contains(number_operators
, c
) &&
436 !(contains(number_seperators
, c
) &&
438 cur
.pos() != cur
.lastpos() &&
439 tm
.displayFont(pit
, cur
.pos()).fontInfo().number() == FONT_ON
&&
440 tm
.displayFont(pit
, cur
.pos() - 1).fontInfo().number() == FONT_ON
)
442 number(cur
); // Set current_font.number to OFF
443 } else if (isDigit(c
) &&
444 cur
.real_current_font
.isVisibleRightToLeft()) {
445 number(cur
); // Set current_font.number to ON
447 if (cur
.pos() != 0) {
448 char_type
const c
= par
.getChar(cur
.pos() - 1);
449 if (contains(number_unary_operators
, c
) &&
451 || par
.isSeparator(cur
.pos() - 2)
452 || par
.isNewline(cur
.pos() - 2))
454 setCharFont(buffer
, pit
, cur
.pos() - 1, cur
.current_font
,
456 } else if (contains(number_seperators
, c
)
458 && tm
.displayFont(pit
, cur
.pos() - 2).fontInfo().number() == FONT_ON
) {
459 setCharFont(buffer
, pit
, cur
.pos() - 1, cur
.current_font
,
466 // In Bidi text, we want spaces to be treated in a special way: spaces
467 // which are between words in different languages should get the
468 // paragraph's language; otherwise, spaces should keep the language
469 // they were originally typed in. This is only in effect while typing;
470 // after the text is already typed in, the user can always go back and
471 // explicitly set the language of a space as desired. But 99.9% of the
472 // time, what we're doing here is what the user actually meant.
474 // The following cases are the ones in which the language of the space
475 // should be changed to match that of the containing paragraph. In the
476 // depictions, lowercase is LTR, uppercase is RTL, underscore (_)
477 // represents a space, pipe (|) represents the cursor position (so the
478 // character before it is the one just typed in). The different cases
479 // are depicted logically (not visually), from left to right:
484 // Theoretically, there are other situations that we should, perhaps, deal
485 // with (e.g.: a|_A, A|_a). In practice, though, there really isn't any
486 // point (to understand why, just try to create this situation...).
488 if ((cur
.pos() >= 2) && (par
.isLineSeparator(cur
.pos() - 1))) {
489 // get font in front and behind the space in question. But do NOT
490 // use getFont(cur.pos()) because the character c is not inserted yet
491 Font
const pre_space_font
= tm
.displayFont(cur
.pit(), cur
.pos() - 2);
492 Font
const & post_space_font
= cur
.real_current_font
;
493 bool pre_space_rtl
= pre_space_font
.isVisibleRightToLeft();
494 bool post_space_rtl
= post_space_font
.isVisibleRightToLeft();
496 if (pre_space_rtl
!= post_space_rtl
) {
497 // Set the space's language to match the language of the
498 // adjacent character whose direction is the paragraph's
499 // direction; don't touch other properties of the font
500 Language
const * lang
=
501 (pre_space_rtl
== par
.isRTL(buffer
.params())) ?
502 pre_space_font
.language() : post_space_font
.language();
504 Font space_font
= tm
.displayFont(cur
.pit(), cur
.pos() - 1);
505 space_font
.setLanguage(lang
);
506 par
.setFont(cur
.pos() - 1, space_font
);
510 // Next check, if there will be two blanks together or a blank at
511 // the beginning of a paragraph.
512 // I decided to handle blanks like normal characters, the main
513 // difference are the special checks when calculating the row.fill
514 // (blank does not count at the end of a row) and the check here
516 // When the free-spacing option is set for the current layout,
517 // disable the double-space checking
518 if (!freeSpacing
&& isLineSeparatorChar(c
)) {
519 if (cur
.pos() == 0) {
520 static bool sent_space_message
= false;
521 if (!sent_space_message
) {
522 cur
.message(_("You cannot insert a space at the "
523 "beginning of a paragraph. Please read the Tutorial."));
524 sent_space_message
= true;
528 LASSERT(cur
.pos() > 0, /**/);
529 if ((par
.isLineSeparator(cur
.pos() - 1) || par
.isNewline(cur
.pos() - 1))
530 && !par
.isDeleted(cur
.pos() - 1)) {
531 static bool sent_space_message
= false;
532 if (!sent_space_message
) {
533 cur
.message(_("You cannot type two spaces this way. "
534 "Please read the Tutorial."));
535 sent_space_message
= true;
541 par
.insertChar(cur
.pos(), c
, cur
.current_font
, cur
.buffer().params().trackChanges
);
542 cur
.checkBufferStructure();
544 // cur.updateFlags(Update::Force);
545 setCursor(cur
.top(), cur
.pit(), cur
.pos() + 1);
550 void Text::charInserted(Cursor
& cur
)
552 Paragraph
& par
= cur
.paragraph();
554 // Here we call finishUndo for every 20 characters inserted.
555 // This is from my experience how emacs does it. (Lgb)
556 static unsigned int counter
;
564 // register word if a non-letter was entered
566 && par
.isLetter(cur
.pos() - 2)
567 && !par
.isLetter(cur
.pos() - 1)) {
568 // get the word in front of cursor
569 LASSERT(this == cur
.text(), /**/);
570 cur
.paragraph().updateWords(cur
.top());
575 // the cursor set functions have a special mechanism. When they
576 // realize, that you left an empty paragraph, they will delete it.
578 bool Text::cursorForwardOneWord(Cursor
& cur
)
580 LASSERT(this == cur
.text(), /**/);
582 pos_type
const lastpos
= cur
.lastpos();
583 pit_type pit
= cur
.pit();
584 pos_type pos
= cur
.pos();
585 Paragraph
const & par
= cur
.paragraph();
587 // Paragraph boundary is a word boundary
588 if (pos
== lastpos
) {
589 if (pit
!= cur
.lastpit())
590 return setCursor(cur
, pit
+ 1, 0);
595 if (lyxrc
.mac_like_word_movement
) {
596 // Skip through trailing punctuation and spaces.
597 while (pos
!= lastpos
&& (par
.isChar(pos
) || par
.isSpace(pos
)))
600 // Skip over either a non-char inset or a full word
601 if (pos
!= lastpos
&& !par
.isLetter(pos
))
603 else while (pos
!= lastpos
&& par
.isLetter(pos
))
606 LASSERT(pos
< lastpos
, /**/); // see above
607 if (par
.isLetter(pos
))
608 while (pos
!= lastpos
&& par
.isLetter(pos
))
610 else if (par
.isChar(pos
))
611 while (pos
!= lastpos
&& par
.isChar(pos
))
613 else if (!par
.isSpace(pos
)) // non-char inset
616 // Skip over white space
617 while (pos
!= lastpos
&& par
.isSpace(pos
))
621 return setCursor(cur
, pit
, pos
);
625 bool Text::cursorBackwardOneWord(Cursor
& cur
)
627 LASSERT(this == cur
.text(), /**/);
629 pit_type pit
= cur
.pit();
630 pos_type pos
= cur
.pos();
631 Paragraph
& par
= cur
.paragraph();
633 // Paragraph boundary is a word boundary
634 if (pos
== 0 && pit
!= 0)
635 return setCursor(cur
, pit
- 1, getPar(pit
- 1).size());
637 if (lyxrc
.mac_like_word_movement
) {
638 // Skip through punctuation and spaces.
639 while (pos
!= 0 && (par
.isChar(pos
- 1) || par
.isSpace(pos
- 1)))
642 // Skip over either a non-char inset or a full word
643 if (pos
!= 0 && !par
.isLetter(pos
- 1) && !par
.isChar(pos
- 1))
645 else while (pos
!= 0 && par
.isLetter(pos
- 1))
648 // Skip over white space
649 while (pos
!= 0 && par
.isSpace(pos
- 1))
652 if (pos
!= 0 && par
.isLetter(pos
- 1))
653 while (pos
!= 0 && par
.isLetter(pos
- 1))
655 else if (pos
!= 0 && par
.isChar(pos
- 1))
656 while (pos
!= 0 && par
.isChar(pos
- 1))
658 else if (pos
!= 0 && !par
.isSpace(pos
- 1)) // non-char inset
662 return setCursor(cur
, pit
, pos
);
666 bool Text::cursorVisLeftOneWord(Cursor
& cur
)
668 LASSERT(this == cur
.text(), /**/);
670 pos_type left_pos
, right_pos
;
671 bool left_is_letter
, right_is_letter
;
673 Cursor temp_cur
= cur
;
675 // always try to move at least once...
676 while (temp_cur
.posVisLeft(true /* skip_inset */)) {
678 // collect some information about current cursor position
679 temp_cur
.getSurroundingPos(left_pos
, right_pos
);
681 (left_pos
> -1 ? temp_cur
.paragraph().isLetter(left_pos
) : false);
683 (right_pos
> -1 ? temp_cur
.paragraph().isLetter(right_pos
) : false);
685 // if we're not at a letter/non-letter boundary, continue moving
686 if (left_is_letter
== right_is_letter
)
689 // we should stop when we have an LTR word on our right or an RTL word
691 if ((left_is_letter
&& temp_cur
.paragraph().getFontSettings(
692 temp_cur
.bv().buffer().params(),
693 left_pos
).isRightToLeft())
694 || (right_is_letter
&& !temp_cur
.paragraph().getFontSettings(
695 temp_cur
.bv().buffer().params(),
696 right_pos
).isRightToLeft()))
700 return setCursor(cur
, temp_cur
.pit(), temp_cur
.pos(),
701 true, temp_cur
.boundary());
705 bool Text::cursorVisRightOneWord(Cursor
& cur
)
707 LASSERT(this == cur
.text(), /**/);
709 pos_type left_pos
, right_pos
;
710 bool left_is_letter
, right_is_letter
;
712 Cursor temp_cur
= cur
;
714 // always try to move at least once...
715 while (temp_cur
.posVisRight(true /* skip_inset */)) {
717 // collect some information about current cursor position
718 temp_cur
.getSurroundingPos(left_pos
, right_pos
);
720 (left_pos
> -1 ? temp_cur
.paragraph().isLetter(left_pos
) : false);
722 (right_pos
> -1 ? temp_cur
.paragraph().isLetter(right_pos
) : false);
724 // if we're not at a letter/non-letter boundary, continue moving
725 if (left_is_letter
== right_is_letter
)
728 // we should stop when we have an LTR word on our right or an RTL word
730 if ((left_is_letter
&& temp_cur
.paragraph().getFontSettings(
731 temp_cur
.bv().buffer().params(),
732 left_pos
).isRightToLeft())
733 || (right_is_letter
&& !temp_cur
.paragraph().getFontSettings(
734 temp_cur
.bv().buffer().params(),
735 right_pos
).isRightToLeft()))
739 return setCursor(cur
, temp_cur
.pit(), temp_cur
.pos(),
740 true, temp_cur
.boundary());
744 void Text::selectWord(Cursor
& cur
, word_location loc
)
746 LASSERT(this == cur
.text(), /**/);
747 CursorSlice from
= cur
.top();
748 CursorSlice to
= cur
.top();
749 getWord(from
, to
, loc
);
750 if (cur
.top() != from
)
751 setCursor(cur
, from
.pit(), from
.pos());
755 setCursor(cur
, to
.pit(), to
.pos());
760 // Select the word currently under the cursor when no
761 // selection is currently set
762 bool Text::selectWordWhenUnderCursor(Cursor
& cur
, word_location loc
)
764 LASSERT(this == cur
.text(), /**/);
767 selectWord(cur
, loc
);
768 return cur
.selection();
772 void Text::acceptOrRejectChanges(Cursor
& cur
, ChangeOp op
)
774 LASSERT(this == cur
.text(), /**/);
776 if (!cur
.selection())
779 cur
.recordUndoSelection();
781 pit_type begPit
= cur
.selectionBegin().pit();
782 pit_type endPit
= cur
.selectionEnd().pit();
784 pos_type begPos
= cur
.selectionBegin().pos();
785 pos_type endPos
= cur
.selectionEnd().pos();
787 // keep selection info, because endPos becomes invalid after the first loop
788 bool endsBeforeEndOfPar
= (endPos
< pars_
[endPit
].size());
790 // first, accept/reject changes within each individual paragraph (do not consider end-of-par)
792 for (pit_type pit
= begPit
; pit
<= endPit
; ++pit
) {
793 pos_type parSize
= pars_
[pit
].size();
795 // ignore empty paragraphs; otherwise, an assertion will fail for
796 // acceptChanges(bparams, 0, 0) or rejectChanges(bparams, 0, 0)
800 // do not consider first paragraph if the cursor starts at pos size()
801 if (pit
== begPit
&& begPos
== parSize
)
804 // do not consider last paragraph if the cursor ends at pos 0
805 if (pit
== endPit
&& endPos
== 0)
806 break; // last iteration anyway
808 pos_type left
= (pit
== begPit
? begPos
: 0);
809 pos_type right
= (pit
== endPit
? endPos
: parSize
);
812 pars_
[pit
].acceptChanges(cur
.buffer().params(), left
, right
);
814 pars_
[pit
].rejectChanges(cur
.buffer().params(), left
, right
);
818 // next, accept/reject imaginary end-of-par characters
820 for (pit_type pit
= begPit
; pit
<= endPit
; ++pit
) {
821 pos_type pos
= pars_
[pit
].size();
823 // skip if the selection ends before the end-of-par
824 if (pit
== endPit
&& endsBeforeEndOfPar
)
825 break; // last iteration anyway
827 // skip if this is not the last paragraph of the document
828 // note: the user should be able to accept/reject the par break of the last par!
829 if (pit
== endPit
&& pit
+ 1 != int(pars_
.size()))
830 break; // last iteration anway
833 if (pars_
[pit
].isInserted(pos
)) {
834 pars_
[pit
].setChange(pos
, Change(Change::UNCHANGED
));
835 } else if (pars_
[pit
].isDeleted(pos
)) {
836 if (pit
+ 1 == int(pars_
.size())) {
837 // we cannot remove a par break at the end of the last paragraph;
838 // instead, we mark it unchanged
839 pars_
[pit
].setChange(pos
, Change(Change::UNCHANGED
));
841 mergeParagraph(cur
.buffer().params(), pars_
, pit
);
847 if (pars_
[pit
].isDeleted(pos
)) {
848 pars_
[pit
].setChange(pos
, Change(Change::UNCHANGED
));
849 } else if (pars_
[pit
].isInserted(pos
)) {
850 if (pit
+ 1 == int(pars_
.size())) {
851 // we mark the par break at the end of the last paragraph unchanged
852 pars_
[pit
].setChange(pos
, Change(Change::UNCHANGED
));
854 mergeParagraph(cur
.buffer().params(), pars_
, pit
);
862 // finally, invoke the DEPM
864 deleteEmptyParagraphMechanism(begPit
, endPit
, cur
.buffer().params().trackChanges
);
869 cur
.clearSelection();
870 setCursorIntern(cur
, begPit
, begPos
);
871 cur
.updateFlags(Update::Force
);
872 updateLabels(cur
.buffer());
876 void Text::acceptChanges(BufferParams
const & bparams
)
878 lyx::acceptChanges(pars_
, bparams
);
879 deleteEmptyParagraphMechanism(0, pars_
.size() - 1, bparams
.trackChanges
);
883 void Text::rejectChanges(BufferParams
const & bparams
)
885 pit_type pars_size
= static_cast<pit_type
>(pars_
.size());
887 // first, reject changes within each individual paragraph
888 // (do not consider end-of-par)
889 for (pit_type pit
= 0; pit
< pars_size
; ++pit
) {
890 if (!pars_
[pit
].empty()) // prevent assertion failure
891 pars_
[pit
].rejectChanges(bparams
, 0, pars_
[pit
].size());
894 // next, reject imaginary end-of-par characters
895 for (pit_type pit
= 0; pit
< pars_size
; ++pit
) {
896 pos_type pos
= pars_
[pit
].size();
898 if (pars_
[pit
].isDeleted(pos
)) {
899 pars_
[pit
].setChange(pos
, Change(Change::UNCHANGED
));
900 } else if (pars_
[pit
].isInserted(pos
)) {
901 if (pit
== pars_size
- 1) {
902 // we mark the par break at the end of the last
903 // paragraph unchanged
904 pars_
[pit
].setChange(pos
, Change(Change::UNCHANGED
));
906 mergeParagraph(bparams
, pars_
, pit
);
913 // finally, invoke the DEPM
914 deleteEmptyParagraphMechanism(0, pars_size
- 1, bparams
.trackChanges
);
918 void Text::deleteWordForward(Cursor
& cur
)
920 LASSERT(this == cur
.text(), /**/);
921 if (cur
.lastpos() == 0)
925 cur
.selection() = true;
926 cursorForwardOneWord(cur
);
928 cutSelection(cur
, true, false);
929 cur
.checkBufferStructure();
934 void Text::deleteWordBackward(Cursor
& cur
)
936 LASSERT(this == cur
.text(), /**/);
937 if (cur
.lastpos() == 0)
941 cur
.selection() = true;
942 cursorBackwardOneWord(cur
);
944 cutSelection(cur
, true, false);
945 cur
.checkBufferStructure();
950 // Kill to end of line.
951 void Text::changeCase(Cursor
& cur
, TextCase action
)
953 LASSERT(this == cur
.text(), /**/);
958 if (cur
.selection()) {
959 from
= cur
.selBegin();
964 getWord(from
, to
, PARTIAL_WORD
);
965 cursorForwardOneWord(cur
);
968 cur
.recordUndoSelection();
970 pit_type begPit
= from
.pit();
971 pit_type endPit
= to
.pit();
973 pos_type begPos
= from
.pos();
974 pos_type endPos
= to
.pos();
976 pos_type right
= 0; // needed after the for loop
978 for (pit_type pit
= begPit
; pit
<= endPit
; ++pit
) {
979 Paragraph
& par
= pars_
[pit
];
980 pos_type
const pos
= (pit
== begPit
? begPos
: 0);
981 right
= (pit
== endPit
? endPos
: par
.size());
982 par
.changeCase(cur
.buffer().params(), pos
, right
, action
);
985 // the selection may have changed due to logically-only deleted chars
987 setCursor(cur
, begPit
, begPos
);
989 setCursor(cur
, endPit
, right
);
992 setCursor(cur
, endPit
, right
);
994 cur
.checkBufferStructure();
998 bool Text::handleBibitems(Cursor
& cur
)
1000 if (cur
.paragraph().layout().labeltype
!= LABEL_BIBLIO
)
1006 BufferParams
const & bufparams
= cur
.buffer().params();
1007 Paragraph
const & par
= cur
.paragraph();
1008 Cursor prevcur
= cur
;
1009 if (cur
.pit() > 0) {
1011 prevcur
.pos() = prevcur
.lastpos();
1013 Paragraph
const & prevpar
= prevcur
.paragraph();
1015 // if a bibitem is deleted, merge with previous paragraph
1016 // if this is a bibliography item as well
1017 if (cur
.pit() > 0 && par
.layout() == prevpar
.layout()) {
1018 cur
.recordUndo(ATOMIC_UNDO
, prevcur
.pit());
1019 mergeParagraph(bufparams
, cur
.text()->paragraphs(),
1021 updateLabels(cur
.buffer());
1022 setCursorIntern(cur
, prevcur
.pit(), prevcur
.pos());
1023 cur
.updateFlags(Update::Force
);
1027 // otherwise reset to default
1028 cur
.paragraph().setPlainOrDefaultLayout(bufparams
.documentClass());
1033 bool Text::erase(Cursor
& cur
)
1035 LASSERT(this == cur
.text(), /**/);
1036 bool needsUpdate
= false;
1037 Paragraph
& par
= cur
.paragraph();
1039 if (cur
.pos() != cur
.lastpos()) {
1040 // this is the code for a normal delete, not pasting
1042 cur
.recordUndo(DELETE_UNDO
);
1043 bool const was_inset
= cur
.paragraph().isInset(cur
.pos());
1044 if(!par
.eraseChar(cur
.pos(), cur
.buffer().params().trackChanges
))
1045 // the character has been logically deleted only => skip it
1046 cur
.top().forwardPos();
1049 updateLabels(cur
.buffer());
1051 cur
.checkBufferStructure();
1054 if (cur
.pit() == cur
.lastpit())
1055 return dissolveInset(cur
);
1057 if (!par
.isMergedOnEndOfParDeletion(cur
.buffer().params().trackChanges
)) {
1058 par
.setChange(cur
.pos(), Change(Change::DELETED
));
1062 setCursorIntern(cur
, cur
.pit() + 1, 0);
1063 needsUpdate
= backspacePos0(cur
);
1067 needsUpdate
|= handleBibitems(cur
);
1070 // Make sure the cursor is correct. Is this really needed?
1071 // No, not really... at least not here!
1072 cur
.text()->setCursor(cur
.top(), cur
.pit(), cur
.pos());
1073 cur
.checkBufferStructure();
1080 bool Text::backspacePos0(Cursor
& cur
)
1082 LASSERT(this == cur
.text(), /**/);
1086 bool needsUpdate
= false;
1088 BufferParams
const & bufparams
= cur
.buffer().params();
1089 DocumentClass
const & tclass
= bufparams
.documentClass();
1090 ParagraphList
& plist
= cur
.text()->paragraphs();
1091 Paragraph
const & par
= cur
.paragraph();
1092 Cursor prevcur
= cur
;
1094 prevcur
.pos() = prevcur
.lastpos();
1095 Paragraph
const & prevpar
= prevcur
.paragraph();
1097 // is it an empty paragraph?
1098 if (cur
.lastpos() == 0
1099 || (cur
.lastpos() == 1 && par
.isSeparator(0))) {
1100 cur
.recordUndo(ATOMIC_UNDO
, prevcur
.pit(), cur
.pit());
1101 plist
.erase(boost::next(plist
.begin(), cur
.pit()));
1104 // is previous par empty?
1105 else if (prevcur
.lastpos() == 0
1106 || (prevcur
.lastpos() == 1 && prevpar
.isSeparator(0))) {
1107 cur
.recordUndo(ATOMIC_UNDO
, prevcur
.pit(), cur
.pit());
1108 plist
.erase(boost::next(plist
.begin(), prevcur
.pit()));
1111 // Pasting is not allowed, if the paragraphs have different
1112 // layouts. I think it is a real bug of all other
1113 // word processors to allow it. It confuses the user.
1114 // Correction: Pasting is always allowed with standard-layout
1115 // or the empty layout.
1116 else if (par
.layout() == prevpar
.layout()
1117 || tclass
.isDefaultLayout(par
.layout())
1118 || tclass
.isPlainLayout(par
.layout())) {
1119 cur
.recordUndo(ATOMIC_UNDO
, prevcur
.pit());
1120 mergeParagraph(bufparams
, plist
, prevcur
.pit());
1125 updateLabels(cur
.buffer());
1126 setCursorIntern(cur
, prevcur
.pit(), prevcur
.pos());
1133 bool Text::backspace(Cursor
& cur
)
1135 LASSERT(this == cur
.text(), /**/);
1136 bool needsUpdate
= false;
1137 if (cur
.pos() == 0) {
1139 return dissolveInset(cur
);
1141 Paragraph
& prev_par
= pars_
[cur
.pit() - 1];
1143 if (!prev_par
.isMergedOnEndOfParDeletion(cur
.buffer().params().trackChanges
)) {
1144 prev_par
.setChange(prev_par
.size(), Change(Change::DELETED
));
1145 setCursorIntern(cur
, cur
.pit() - 1, prev_par
.size());
1148 // The cursor is at the beginning of a paragraph, so
1149 // the backspace will collapse two paragraphs into one.
1150 needsUpdate
= backspacePos0(cur
);
1153 // this is the code for a normal backspace, not pasting
1155 cur
.recordUndo(DELETE_UNDO
);
1156 // We used to do cursorBackwardIntern() here, but it is
1157 // not a good idea since it triggers the auto-delete
1158 // mechanism. So we do a cursorBackwardIntern()-lite,
1159 // without the dreaded mechanism. (JMarc)
1160 setCursorIntern(cur
, cur
.pit(), cur
.pos() - 1,
1161 false, cur
.boundary());
1162 bool const was_inset
= cur
.paragraph().isInset(cur
.pos());
1163 cur
.paragraph().eraseChar(cur
.pos(), cur
.buffer().params().trackChanges
);
1165 updateLabels(cur
.buffer());
1167 cur
.checkBufferStructure();
1170 if (cur
.pos() == cur
.lastpos())
1171 cur
.setCurrentFont();
1173 needsUpdate
|= handleBibitems(cur
);
1175 // A singlePar update is not enough in this case.
1176 // cur.updateFlags(Update::Force);
1177 setCursor(cur
.top(), cur
.pit(), cur
.pos());
1183 bool Text::dissolveInset(Cursor
& cur
) {
1184 LASSERT(this == cur
.text(), /**/);
1186 if (isMainText(cur
.bv().buffer()) || cur
.inset().nargs() != 1)
1189 cur
.recordUndoInset();
1191 cur
.selHandle(false);
1193 pos_type spos
= cur
.pos();
1194 pit_type spit
= cur
.pit();
1195 ParagraphList plist
;
1196 if (cur
.lastpit() != 0 || cur
.lastpos() != 0)
1197 plist
= paragraphs();
1199 // store cursor offset
1203 Buffer
& b
= cur
.buffer();
1204 cur
.paragraph().eraseChar(cur
.pos(), b
.params().trackChanges
);
1205 if (!plist
.empty()) {
1206 // ERT paragraphs have the Language latex_language.
1207 // This is invalid outside of ERT, so we need to
1208 // change it to the buffer language.
1209 ParagraphList::iterator it
= plist
.begin();
1210 ParagraphList::iterator it_end
= plist
.end();
1211 for (; it
!= it_end
; it
++)
1212 it
->changeLanguage(b
.params(), latex_language
, b
.language());
1214 pasteParagraphList(cur
, plist
, b
.params().documentClassPtr(),
1215 b
.errorList("Paste"));
1217 cur
.pit() = min(cur
.lastpit(), spit
);
1218 cur
.pos() = min(cur
.lastpos(), spos
);
1220 cur
.clearSelection();
1226 void Text::getWord(CursorSlice
& from
, CursorSlice
& to
,
1227 word_location
const loc
) const
1229 Paragraph
const & from_par
= pars_
[from
.pit()];
1231 case WHOLE_WORD_STRICT
:
1232 if (from
.pos() == 0 || from
.pos() == from_par
.size()
1233 || !from_par
.isLetter(from
.pos())
1234 || !from_par
.isLetter(from
.pos() - 1)) {
1238 // no break here, we go to the next
1241 // If we are already at the beginning of a word, do nothing
1242 if (!from
.pos() || !from_par
.isLetter(from
.pos() - 1))
1244 // no break here, we go to the next
1247 // always move the cursor to the beginning of previous word
1248 while (from
.pos() && from_par
.isLetter(from
.pos() - 1))
1252 LYXERR0("Text::getWord: NEXT_WORD not implemented yet");
1255 // no need to move the 'from' cursor
1259 Paragraph
const & to_par
= pars_
[to
.pit()];
1260 while (to
.pos() < to_par
.size() && to_par
.isLetter(to
.pos()))
1265 void Text::write(Buffer
const & buf
, ostream
& os
) const
1267 ParagraphList::const_iterator pit
= paragraphs().begin();
1268 ParagraphList::const_iterator end
= paragraphs().end();
1270 for (; pit
!= end
; ++pit
)
1271 pit
->write(os
, buf
.params(), dth
);
1273 // Close begin_deeper
1274 for(; dth
> 0; --dth
)
1275 os
<< "\n\\end_deeper";
1279 bool Text::read(Buffer
const & buf
, Lexer
& lex
,
1280 ErrorList
& errorList
, InsetText
* insetPtr
)
1282 depth_type depth
= 0;
1284 while (lex
.isOK()) {
1286 string
const token
= lex
.getString();
1291 if (token
== "\\end_inset")
1294 if (token
== "\\end_body")
1297 if (token
== "\\begin_body")
1300 if (token
== "\\end_document")
1303 if (token
== "\\begin_layout") {
1304 lex
.pushToken(token
);
1307 par
.params().depth(depth
);
1308 par
.setFont(0, Font(inherit_font
, buf
.params().language
));
1309 par
.setInsetOwner(insetPtr
);
1310 pars_
.push_back(par
);
1312 // FIXME: goddamn InsetTabular makes us pass a Buffer
1314 lyx::readParagraph(buf
, pars_
.back(), lex
, errorList
);
1316 // register the words in the global word list
1317 CursorSlice sl
= CursorSlice(*insetPtr
);
1318 sl
.pit() = pars_
.size() - 1;
1319 pars_
.back().updateWords(sl
);
1320 } else if (token
== "\\begin_deeper") {
1322 } else if (token
== "\\end_deeper") {
1324 lex
.printError("\\end_deeper: " "depth is already null");
1328 LYXERR0("Handling unknown body token: `" << token
<< '\'');
1334 // Returns the current font and depth as a message.
1335 docstring
Text::currentState(Cursor
& cur
)
1337 LASSERT(this == cur
.text(), /**/);
1338 Buffer
& buf
= cur
.buffer();
1339 Paragraph
const & par
= cur
.paragraph();
1340 odocstringstream os
;
1342 if (buf
.params().trackChanges
)
1343 os
<< _("[Change Tracking] ");
1345 Change change
= par
.lookupChange(cur
.pos());
1347 if (change
.type
!= Change::UNCHANGED
) {
1348 Author
const & a
= buf
.params().authors().get(change
.author
);
1349 os
<< _("Change: ") << a
.name();
1350 if (!a
.email().empty())
1351 os
<< " (" << a
.email() << ")";
1352 // FIXME ctime is english, we should translate that
1353 os
<< _(" at ") << ctime(&change
.changetime
);
1357 // I think we should only show changes from the default
1359 // No, from the document font (MV)
1360 Font font
= cur
.real_current_font
;
1361 font
.fontInfo().reduce(buf
.params().getFont().fontInfo());
1363 os
<< bformat(_("Font: %1$s"), font
.stateText(&buf
.params()));
1365 // The paragraph depth
1366 int depth
= cur
.paragraph().getDepth();
1368 os
<< bformat(_(", Depth: %1$d"), depth
);
1370 // The paragraph spacing, but only if different from
1372 Spacing
const & spacing
= par
.params().spacing();
1373 if (!spacing
.isDefault()) {
1374 os
<< _(", Spacing: ");
1375 switch (spacing
.getSpace()) {
1376 case Spacing::Single
:
1379 case Spacing::Onehalf
:
1382 case Spacing::Double
:
1385 case Spacing::Other
:
1386 os
<< _("Other (") << from_ascii(spacing
.getValueAsString()) << ')';
1388 case Spacing::Default
:
1389 // should never happen, do nothing
1394 #ifdef DEVEL_VERSION
1395 os
<< _(", Inset: ") << &cur
.inset();
1396 os
<< _(", Paragraph: ") << cur
.pit();
1397 os
<< _(", Id: ") << par
.id();
1398 os
<< _(", Position: ") << cur
.pos();
1399 // FIXME: Why is the check for par.size() needed?
1400 // We are called with cur.pos() == par.size() quite often.
1401 if (!par
.empty() && cur
.pos() < par
.size()) {
1402 // Force output of code point, not character
1403 size_t const c
= par
.getChar(cur
.pos());
1404 os
<< _(", Char: 0x") << hex
<< c
;
1406 os
<< _(", Boundary: ") << cur
.boundary();
1407 // Row & row = cur.textRow();
1408 // os << bformat(_(", Row b:%1$d e:%2$d"), row.pos(), row.endpos());
1414 docstring
Text::getPossibleLabel(Cursor
& cur
) const
1416 pit_type pit
= cur
.pit();
1418 Layout
const * layout
= &(pars_
[pit
].layout());
1421 docstring par_text
= pars_
[pit
].asString();
1423 // the return string of math matrices might contain linebreaks
1424 par_text
= subst(par_text
, '\n', '-');
1425 for (int i
= 0; i
< lyxrc
.label_init_length
; ++i
) {
1426 if (par_text
.empty())
1429 par_text
= split(par_text
, head
, ' ');
1430 // Is it legal to use spaces in labels ?
1436 // No need for a prefix if the user said so.
1437 if (lyxrc
.label_init_length
<= 0)
1440 // Will contain the label type.
1443 // For section, subsection, etc...
1444 if (layout
->latextype
== LATEX_PARAGRAPH
&& pit
!= 0) {
1445 Layout
const * layout2
= &(pars_
[pit
- 1].layout());
1446 if (layout2
->latextype
!= LATEX_PARAGRAPH
) {
1451 if (layout
->latextype
!= LATEX_PARAGRAPH
)
1452 name
= from_ascii(layout
->latexname());
1454 // for captions, we just take the caption type
1455 Inset
* caption_inset
= cur
.innerInsetOfType(CAPTION_CODE
);
1457 name
= from_ascii(static_cast<InsetCaption
*>(caption_inset
)->type());
1459 // If none of the above worked, we'll see if we're inside various
1460 // types of insets and take our abbreviation from them.
1462 InsetCode
const codes
[] = {
1467 for (unsigned int i
= 0; i
< (sizeof codes
/ sizeof codes
[0]); ++i
) {
1468 Inset
* float_inset
= cur
.innerInsetOfType(codes
[i
]);
1470 name
= float_inset
->name();
1476 // Create a correct prefix for prettyref
1477 if (name
== "theorem")
1478 name
= from_ascii("thm");
1479 else if (name
== "Foot")
1480 name
= from_ascii("fn");
1481 else if (name
== "listing")
1482 name
= from_ascii("lst");
1485 text
= name
.substr(0, 3) + ':' + text
;
1491 void Text::charsTranspose(Cursor
& cur
)
1493 LASSERT(this == cur
.text(), /**/);
1495 pos_type pos
= cur
.pos();
1497 // If cursor is at beginning or end of paragraph, do nothing.
1498 if (pos
== cur
.lastpos() || pos
== 0)
1501 Paragraph
& par
= cur
.paragraph();
1503 // Get the positions of the characters to be transposed.
1504 pos_type pos1
= pos
- 1;
1505 pos_type pos2
= pos
;
1507 // In change tracking mode, ignore deleted characters.
1508 while (pos2
< cur
.lastpos() && par
.isDeleted(pos2
))
1510 if (pos2
== cur
.lastpos())
1513 while (pos1
>= 0 && par
.isDeleted(pos1
))
1518 // Don't do anything if one of the "characters" is not regular text.
1519 if (par
.isInset(pos1
) || par
.isInset(pos2
))
1522 // Store the characters to be transposed (including font information).
1523 char_type char1
= par
.getChar(pos1
);
1525 par
.getFontSettings(cur
.buffer().params(), pos1
);
1527 char_type char2
= par
.getChar(pos2
);
1529 par
.getFontSettings(cur
.buffer().params(), pos2
);
1531 // And finally, we are ready to perform the transposition.
1532 // Track the changes if Change Tracking is enabled.
1533 bool const trackChanges
= cur
.buffer().params().trackChanges
;
1537 par
.eraseChar(pos2
, trackChanges
);
1538 par
.eraseChar(pos1
, trackChanges
);
1539 par
.insertChar(pos1
, char2
, font2
, trackChanges
);
1540 par
.insertChar(pos2
, char1
, font1
, trackChanges
);
1542 cur
.checkBufferStructure();
1544 // After the transposition, move cursor to after the transposition.
1545 setCursor(cur
, cur
.pit(), pos2
);
1550 DocIterator
Text::macrocontextPosition() const
1552 return macrocontext_position_
;
1556 void Text::setMacrocontextPosition(DocIterator
const & pos
)
1558 macrocontext_position_
= pos
;
1562 docstring
Text::previousWord(CursorSlice
const & sl
) const
1564 CursorSlice from
= sl
;
1565 CursorSlice to
= sl
;
1566 getWord(from
, to
, PREVIOUS_WORD
);
1567 if (sl
== from
|| to
== from
)
1570 Paragraph
const & par
= sl
.paragraph();
1571 return par
.asString(from
.pos(), to
.pos());
1575 bool Text::completionSupported(Cursor
const & cur
) const
1577 Paragraph
const & par
= cur
.paragraph();
1578 return cur
.pos() > 0
1579 && (cur
.pos() >= par
.size() || !par
.isLetter(cur
.pos()))
1580 && par
.isLetter(cur
.pos() - 1);
1584 CompletionList
const * Text::createCompletionList(Cursor
const & cur
) const
1586 return new TextCompletionList(cur
);
1590 bool Text::insertCompletion(Cursor
& cur
, docstring
const & s
, bool /*finished*/)
1592 LASSERT(cur
.bv().cursor() == cur
, /**/);
1594 cur
.bv().cursor() = cur
;
1595 if (!(cur
.disp_
.update() & Update::Force
))
1596 cur
.updateFlags(cur
.disp_
.update() | Update::SinglePar
);
1601 docstring
Text::completionPrefix(Cursor
const & cur
) const
1603 return previousWord(cur
.top());