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word.go
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word.go
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package main
import (
"regexp"
"strings"
"unicode/utf8"
glisp "github.com/glycerine/zygomys/zygo"
termutil "github.com/japanoise/termbox-util"
)
func indexEndOfBackwardWord() (int, int) {
cx, icy := Global.CurrentB.cx, Global.CurrentB.cy
if icy >= Global.CurrentB.NumRows {
return cx, icy
}
pre := true
for cy := icy; cy >= 0; cy-- {
if cy != icy {
cx = Global.CurrentB.Rows[cy].Size
}
for cx > 0 {
r, rs :=
utf8.DecodeLastRuneInString(Global.CurrentB.Rows[cy].Data[:cx])
if !termutil.WordCharacter(r) && !pre {
return cx, cy
} else if termutil.WordCharacter(r) {
pre = false
}
cx -= rs
}
if !pre {
return cx, cy
}
}
return cx, 0
}
func indexEndOfForwardWord() (int, int) {
cx, icy := Global.CurrentB.cx, Global.CurrentB.cy
if icy >= Global.CurrentB.NumRows {
return cx, icy
}
pre := true
for cy := icy; cy < Global.CurrentB.NumRows; cy++ {
l := Global.CurrentB.Rows[cy].Size
for cx < l {
r, rs := utf8.DecodeRuneInString(Global.CurrentB.Rows[cy].Data[cx:])
if !termutil.WordCharacter(r) && !pre {
return cx, cy
} else if termutil.WordCharacter(r) {
pre = false
}
cx += rs
}
if !pre {
return cx, cy
}
cx = 0
}
return cx, icy
}
func delBackWord() {
times := getRepeatTimes()
for i := 0; i < times; i++ {
icx, icy := Global.CurrentB.cx, Global.CurrentB.cy
if icy >= Global.CurrentB.NumRows {
return
}
ncx, ncy := indexEndOfBackwardWord()
if ncx < icx || ncy != icy {
ret := bufKillRegion(Global.CurrentB, ncx, icx, ncy, icy)
editorAddRegionUndo(false, ncx, icx, ncy, icy, ret)
Global.Clipboard = ret
Global.CurrentB.cx = ncx
}
}
}
func moveBackWord() {
times := getRepeatTimes()
for i := 0; i < times; i++ {
if Global.CurrentB.cx == 0 {
Global.CurrentB.MoveCursorLeft()
}
Global.CurrentB.cx, Global.CurrentB.cy = indexEndOfBackwardWord()
Global.CurrentB.prefcx = Global.CurrentB.cx
}
}
func delForwardWord() {
times := getRepeatTimes()
for i := 0; i < times; i++ {
icx, icy := Global.CurrentB.cx, Global.CurrentB.cy
if icy >= Global.CurrentB.NumRows {
return
}
ncx, ncy := indexEndOfForwardWord()
if ncx > icx || ncy != icy {
ret := bufKillRegion(Global.CurrentB, icx, ncx, icy, ncy)
editorAddRegionUndo(false, icx, ncx, icy, ncy, ret)
Global.Clipboard = ret
}
}
}
func moveForwardWord() {
times := getRepeatTimes()
for i := 0; i < times; i++ {
icy := Global.CurrentB.cy
if icy >= Global.CurrentB.NumRows {
return
}
Global.CurrentB.cx, Global.CurrentB.cy = indexEndOfForwardWord()
Global.CurrentB.prefcx = Global.CurrentB.cx
}
}
func upcaseWord() {
times := getRepeatTimes()
for i := 0; i < times; i++ {
icx, icy := Global.CurrentB.cx, Global.CurrentB.cy
endc, endl := indexEndOfForwardWord()
if endc > icx {
transposeRegion(Global.CurrentB, icx, endc, icy, endl, strings.ToUpper)
}
}
}
func downcaseWord() {
times := getRepeatTimes()
for i := 0; i < times; i++ {
icx, icy := Global.CurrentB.cx, Global.CurrentB.cy
endc, endl := indexEndOfForwardWord()
if endc > icx {
transposeRegion(Global.CurrentB, icx, endc, icy, endl, strings.ToLower)
}
}
}
func capitalizeWord() {
times := getRepeatTimes()
icx, icy := Global.CurrentB.cx, Global.CurrentB.cy
endc, endl := icx, icy
for i := 0; i < times; i++ {
endc, endl = indexEndOfForwardWord()
}
transposeRegion(Global.CurrentB, icx, endc, icy, endl, func(s string) string { return strings.Title(strings.ToLower(s)) })
}
func indexOfLastWord(s string) int {
for i := len(s) - 1; i > 0; i-- {
ru, _ := utf8.DecodeLastRuneInString(s[:i])
if !termutil.WordCharacter(ru) {
return i
}
}
return 0
}
func indexOfFirstWord(s string) int {
for i, ru := range s {
if !termutil.WordCharacter(ru) {
return i
}
}
return len(s)
}
func getBackwardWord() string {
bwx, bwy := indexEndOfBackwardWord()
return getRegionText(Global.CurrentB, bwx, Global.CurrentB.cx, bwy, Global.CurrentB.cy)
}
func autoComplete(env *glisp.Zlisp) {
word := getBackwardWord()
re, err := regexp.Compile(`\b` + regexp.QuoteMeta(word) + `(\w+)`)
if err != nil {
Global.Input = err.Error()
}
matches := []string{}
for _, buf := range Global.Buffers {
for _, row := range buf.Rows {
somematches := re.FindAllStringSubmatch(row.Data, -1)
if len(somematches) > 0 {
MATCH:
for _, match := range somematches {
for _, pmatch := range matches {
if pmatch == match[1] {
continue MATCH
}
}
matches = append(matches, match[1])
}
}
}
}
lm := len(matches)
if lm == 0 {
Global.Input = "No matches for " + word
return
} else if lm == 1 {
editorInsertStr(matches[0])
return
}
index := 0
first := true
ocx, ocy := Global.CurrentB.cx, Global.CurrentB.cy
micromode("M-/", "Press M-/ again to cycle through complete candidates",
env, func(*glisp.Zlisp) {
if first {
first = false
} else {
bufKillRegion(Global.CurrentB, ocx,
Global.CurrentB.cx, ocy, ocy)
}
editorRowInsertStr(Global.CurrentB.Rows[ocy],
Global.CurrentB, ocx, matches[index])
Global.CurrentB.cx = ocx + len(matches[index])
index++
if index >= lm {
index = 0
}
})
editorAddInsertUndo(ocx, ocy, matches[index])
}