-
Notifications
You must be signed in to change notification settings - Fork 0
/
find.go
481 lines (427 loc) · 12.7 KB
/
find.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
// Copyright (c) 2023, The Goki Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package texteditor
import (
"unicode"
"goki.dev/gi/v2/gi"
"goki.dev/gi/v2/texteditor/textbuf"
"goki.dev/girl/styles"
"goki.dev/goosi/events"
"goki.dev/pi/v2/lex"
)
///////////////////////////////////////////////////////////////////////////////
// Search / Find
// FindMatches finds the matches with given search string (literal, not regex)
// and case sensitivity, updates highlights for all. returns false if none
// found
func (ed *Editor) FindMatches(find string, useCase, lexItems bool) ([]textbuf.Match, bool) {
fsz := len(find)
if fsz == 0 {
ed.Highlights = nil
return nil, false
}
_, matches := ed.Buf.Search([]byte(find), !useCase, lexItems)
if len(matches) == 0 {
ed.Highlights = nil
return matches, false
}
hi := make([]textbuf.Region, len(matches))
for i, m := range matches {
hi[i] = m.Reg
if i > ViewMaxFindHighlights {
break
}
}
ed.Highlights = hi
return matches, true
}
// MatchFromPos finds the match at or after the given text position -- returns 0, false if none
func (ed *Editor) MatchFromPos(matches []textbuf.Match, cpos lex.Pos) (int, bool) {
for i, m := range matches {
reg := ed.Buf.AdjustReg(m.Reg)
if reg.Start == cpos || cpos.IsLess(reg.Start) {
return i, true
}
}
return 0, false
}
// ISearch holds all the interactive search data
type ISearch struct {
// if true, in interactive search mode
On bool `json:"-" xml:"-"`
// current interactive search string
Find string `json:"-" xml:"-"`
// pay attention to case in isearch -- triggered by typing an upper-case letter
UseCase bool `json:"-" xml:"-"`
// current search matches
Matches []textbuf.Match `json:"-" xml:"-"`
// position within isearch matches
Pos int `json:"-" xml:"-"`
// position in search list from previous search
PrevPos int `json:"-" xml:"-"`
// starting position for search -- returns there after on cancel
StartPos lex.Pos `json:"-" xml:"-"`
}
// ViewMaxFindHighlights is the maximum number of regions to highlight on find
var ViewMaxFindHighlights = 1000
// PrevISearchString is the previous ISearch string
var PrevISearchString string
// ISearchMatches finds ISearch matches -- returns true if there are any
func (ed *Editor) ISearchMatches() bool {
got := false
ed.ISearch.Matches, got = ed.FindMatches(ed.ISearch.Find, ed.ISearch.UseCase, false)
return got
}
// ISearchNextMatch finds next match after given cursor position, and highlights
// it, etc
func (ed *Editor) ISearchNextMatch(cpos lex.Pos) bool {
if len(ed.ISearch.Matches) == 0 {
ed.ISearchSig()
return false
}
ed.ISearch.Pos, _ = ed.MatchFromPos(ed.ISearch.Matches, cpos)
ed.ISearchSelectMatch(ed.ISearch.Pos)
return true
}
// ISearchSelectMatch selects match at given match index (e.g., ed.ISearch.Pos)
func (ed *Editor) ISearchSelectMatch(midx int) {
nm := len(ed.ISearch.Matches)
if midx >= nm {
ed.ISearchSig()
return
}
m := ed.ISearch.Matches[midx]
reg := ed.Buf.AdjustReg(m.Reg)
pos := reg.Start
ed.SelectReg = reg
ed.SetCursor(pos)
ed.SavePosHistory(ed.CursorPos)
ed.ScrollCursorToCenterIfHidden()
ed.ISearchSig()
}
// ISearchSig sends the signal that ISearch is updated
func (ed *Editor) ISearchSig() {
ed.Send(events.Input, nil)
}
// ISearchStart is an emacs-style interactive search mode -- this is called when
// the search command itself is entered
func (ed *Editor) ISearchStart() {
updt := ed.UpdateStart()
defer ed.UpdateEndRender(updt)
if ed.ISearch.On {
if ed.ISearch.Find != "" { // already searching -- find next
sz := len(ed.ISearch.Matches)
if sz > 0 {
if ed.ISearch.Pos < sz-1 {
ed.ISearch.Pos++
} else {
ed.ISearch.Pos = 0
}
ed.ISearchSelectMatch(ed.ISearch.Pos)
}
} else { // restore prev
if PrevISearchString != "" {
ed.ISearch.Find = PrevISearchString
ed.ISearch.UseCase = lex.HasUpperCase(ed.ISearch.Find)
ed.ISearchMatches()
ed.ISearchNextMatch(ed.CursorPos)
ed.ISearch.StartPos = ed.CursorPos
}
// nothing..
}
} else {
ed.ISearch.On = true
ed.ISearch.Find = ""
ed.ISearch.StartPos = ed.CursorPos
ed.ISearch.UseCase = false
ed.ISearch.Matches = nil
ed.SelectReset()
ed.ISearch.Pos = -1
ed.ISearchSig()
}
}
// ISearchKeyInput is an emacs-style interactive search mode -- this is called
// when keys are typed while in search mode
func (ed *Editor) ISearchKeyInput(kt events.Event) {
r := kt.KeyRune()
updt := ed.UpdateStart()
defer ed.UpdateEndRender(updt)
// if ed.ISearch.Find == PrevISearchString { // undo starting point
// ed.ISearch.Find = ""
// }
if unicode.IsUpper(r) { // todo: more complex
ed.ISearch.UseCase = true
}
ed.ISearch.Find += string(r)
ed.ISearchMatches()
sz := len(ed.ISearch.Matches)
if sz == 0 {
ed.ISearch.Pos = -1
ed.ISearchSig()
return
}
ed.ISearchNextMatch(ed.CursorPos)
}
// ISearchBackspace gets rid of one item in search string
func (ed *Editor) ISearchBackspace() {
updt := ed.UpdateStart()
defer ed.UpdateEndRender(updt)
if ed.ISearch.Find == PrevISearchString { // undo starting point
ed.ISearch.Find = ""
ed.ISearch.UseCase = false
ed.ISearch.Matches = nil
ed.SelectReset()
ed.ISearch.Pos = -1
ed.ISearchSig()
return
}
if len(ed.ISearch.Find) <= 1 {
ed.SelectReset()
ed.ISearch.Find = ""
ed.ISearch.UseCase = false
return
}
ed.ISearch.Find = ed.ISearch.Find[:len(ed.ISearch.Find)-1]
ed.ISearchMatches()
sz := len(ed.ISearch.Matches)
if sz == 0 {
ed.ISearch.Pos = -1
ed.ISearchSig()
return
}
ed.ISearchNextMatch(ed.CursorPos)
}
// ISearchCancel cancels ISearch mode
func (ed *Editor) ISearchCancel() {
if !ed.ISearch.On {
return
}
updt := ed.UpdateStart()
defer ed.UpdateEndRender(updt)
if ed.ISearch.Find != "" {
PrevISearchString = ed.ISearch.Find
}
ed.ISearch.PrevPos = ed.ISearch.Pos
ed.ISearch.Find = ""
ed.ISearch.UseCase = false
ed.ISearch.On = false
ed.ISearch.Pos = -1
ed.ISearch.Matches = nil
ed.Highlights = nil
ed.SavePosHistory(ed.CursorPos)
ed.SelectReset()
ed.ISearchSig()
}
///////////////////////////////////////////////////////////////////////////////
// Query-Replace
// QReplace holds all the query-replace data
type QReplace struct {
// if true, in interactive search mode
On bool `json:"-" xml:"-"`
// current interactive search string
Find string `json:"-" xml:"-"`
// current interactive search string
Replace string `json:"-" xml:"-"`
// pay attention to case in isearch -- triggered by typing an upper-case letter
UseCase bool `json:"-" xml:"-"`
// search only as entire lexically-tagged item boundaries -- key for replacing short local variables like i
LexItems bool `json:"-" xml:"-"`
// current search matches
Matches []textbuf.Match `json:"-" xml:"-"`
// position within isearch matches
Pos int `json:"-" xml:"-"`
// position in search list from previous search
PrevPos int `json:"-" xml:"-"`
// starting position for search -- returns there after on cancel
StartPos lex.Pos `json:"-" xml:"-"`
}
var (
// PrevQReplaceFinds are the previous QReplace strings
PrevQReplaceFinds []string
// PrevQReplaceRepls are the previous QReplace strings
PrevQReplaceRepls []string
)
// QReplaceSig sends the signal that QReplace is updated
func (ed *Editor) QReplaceSig() {
ed.Send(events.Input, nil)
}
// QReplacePrompt is an emacs-style query-replace mode -- this starts the process, prompting
// user for items to search etc
func (ed *Editor) QReplaceAddText() {
find := ""
if ed.HasSelection() {
find = string(ed.Selection().ToBytes())
}
d := gi.NewBody().AddTitle("Query-Replace").
AddText("Enter strings for find and replace, then select Query-Replace -- with dialog dismissed press <b>y</b> to replace current match, <b>n</b> to skip, <b>Enter</b> or <b>q</b> to quit, <b>!</b> to replace-all remaining")
fc := gi.NewChooser(d, "find").SetEditable(true).SetAllowNew(true)
fc.Style(func(s *styles.Style) {
s.Grow.Set(1, 0)
s.Min.X.Ch(60)
})
fc.SetStrings(PrevQReplaceFinds, true, 0)
if find != "" {
fc.SetCurVal(find)
}
rc := gi.NewChooser(d, "repl").SetEditable(true).SetAllowNew(true)
rc.Style(func(s *styles.Style) {
s.Grow.Set(1, 0)
s.Min.X.Ch(60)
})
rc.SetStrings(PrevQReplaceRepls, true, 0)
lexitems := ed.QReplace.LexItems
lxi := gi.NewSwitch(d, "lexb").SetText("Lexical Items").SetChecked(lexitems)
lxi.SetTooltip("search matches entire lexically tagged items -- good for finding local variable names like 'i' and not matching everything")
d.AddBottomBar(func(pw gi.Widget) {
d.AddCancel(pw)
d.AddOk(pw).SetText("Query-Replace").OnClick(func(e events.Event) {
fc.GetCurTextAction()
rc.GetCurTextAction()
var find, repl string
if s, ok := fc.CurVal.(string); ok {
find = s
}
if s, ok := rc.CurVal.(string); ok {
repl = s
}
lexItems := lxi.IsChecked()
ed.QReplaceStart(find, repl, lexItems)
})
})
d.NewDialog(ed).Run()
}
// QReplaceStart starts query-replace using given find, replace strings
func (ed *Editor) QReplaceStart(find, repl string, lexItems bool) {
ed.QReplace.On = true
ed.QReplace.Find = find
ed.QReplace.Replace = repl
ed.QReplace.LexItems = lexItems
ed.QReplace.StartPos = ed.CursorPos
ed.QReplace.UseCase = lex.HasUpperCase(find)
ed.QReplace.Matches = nil
ed.QReplace.Pos = -1
gi.StringsInsertFirstUnique(&PrevQReplaceFinds, find, gi.Prefs.Params.SavedPathsMax)
gi.StringsInsertFirstUnique(&PrevQReplaceRepls, repl, gi.Prefs.Params.SavedPathsMax)
ed.QReplaceMatches()
ed.QReplace.Pos, _ = ed.MatchFromPos(ed.QReplace.Matches, ed.CursorPos)
ed.QReplaceSelectMatch(ed.QReplace.Pos)
ed.QReplaceSig()
}
// QReplaceMatches finds QReplace matches -- returns true if there are any
func (ed *Editor) QReplaceMatches() bool {
got := false
ed.QReplace.Matches, got = ed.FindMatches(ed.QReplace.Find, ed.QReplace.UseCase, ed.QReplace.LexItems)
return got
}
// QReplaceNextMatch finds next match using, QReplace.Pos and highlights it, etc
func (ed *Editor) QReplaceNextMatch() bool {
nm := len(ed.QReplace.Matches)
if nm == 0 {
return false
}
ed.QReplace.Pos++
if ed.QReplace.Pos >= nm {
return false
}
ed.QReplaceSelectMatch(ed.QReplace.Pos)
return true
}
// QReplaceSelectMatch selects match at given match index (e.g., ed.QReplace.Pos)
func (ed *Editor) QReplaceSelectMatch(midx int) {
nm := len(ed.QReplace.Matches)
if midx >= nm {
return
}
m := ed.QReplace.Matches[midx]
reg := ed.Buf.AdjustReg(m.Reg)
pos := reg.Start
ed.SelectReg = reg
ed.SetCursor(pos)
ed.SavePosHistory(ed.CursorPos)
ed.ScrollCursorToCenterIfHidden()
ed.QReplaceSig()
}
// QReplaceReplace replaces at given match index (e.g., ed.QReplace.Pos)
func (ed *Editor) QReplaceReplace(midx int) {
nm := len(ed.QReplace.Matches)
if midx >= nm {
return
}
m := ed.QReplace.Matches[midx]
rep := ed.QReplace.Replace
reg := ed.Buf.AdjustReg(m.Reg)
pos := reg.Start
// last arg is matchCase, only if not using case to match and rep is also lower case
matchCase := !ed.QReplace.UseCase && !lex.HasUpperCase(rep)
ed.Buf.ReplaceText(reg.Start, reg.End, pos, rep, EditSignal, matchCase)
ed.Highlights[midx] = textbuf.RegionNil
ed.SetCursor(pos)
ed.SavePosHistory(ed.CursorPos)
ed.ScrollCursorToCenterIfHidden()
ed.QReplaceSig()
}
// QReplaceReplaceAll replaces all remaining from index
func (ed *Editor) QReplaceReplaceAll(midx int) {
nm := len(ed.QReplace.Matches)
if midx >= nm {
return
}
for mi := midx; mi < nm; mi++ {
ed.QReplaceReplace(mi)
}
}
// QReplaceKeyInput is an emacs-style interactive search mode -- this is called
// when keys are typed while in search mode
func (ed *Editor) QReplaceKeyInput(kt events.Event) {
updt := ed.UpdateStart()
defer ed.UpdateEndRender(updt)
switch {
case kt.KeyRune() == 'y':
ed.QReplaceReplace(ed.QReplace.Pos)
if !ed.QReplaceNextMatch() {
ed.QReplaceCancel()
}
case kt.KeyRune() == 'n':
if !ed.QReplaceNextMatch() {
ed.QReplaceCancel()
}
case kt.KeyRune() == 'q' || kt.KeyChord() == "ReturnEnter":
ed.QReplaceCancel()
case kt.KeyRune() == '!':
ed.QReplaceReplaceAll(ed.QReplace.Pos)
ed.QReplaceCancel()
}
}
// QReplaceCancel cancels QReplace mode
func (ed *Editor) QReplaceCancel() {
if !ed.QReplace.On {
return
}
updt := ed.UpdateStart()
defer ed.UpdateEndRender(updt)
ed.QReplace.On = false
ed.QReplace.Pos = -1
ed.QReplace.Matches = nil
ed.Highlights = nil
ed.SavePosHistory(ed.CursorPos)
ed.SelectReset()
ed.QReplaceSig()
}
// EscPressed emitted for keyfun.Abort or keyfun.CancelSelect -- effect depends on state..
func (ed *Editor) EscPressed() {
updt := ed.UpdateStart()
defer ed.UpdateEndRender(updt)
switch {
case ed.ISearch.On:
ed.ISearchCancel()
ed.SetCursorShow(ed.ISearch.StartPos)
case ed.QReplace.On:
ed.QReplaceCancel()
ed.SetCursorShow(ed.ISearch.StartPos)
case ed.HasSelection():
ed.SelectReset()
default:
ed.Highlights = nil
}
}