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Document WordWrap bug

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This commit is contained in:
Trevor Slocum 2021-08-02 12:59:40 -07:00
parent b4beaaeff9
commit 6758d2a787
1 changed files with 6 additions and 3 deletions
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9
util.go
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@ -528,7 +528,10 @@ func TaggedStringWidth(text string) int {
//
// Text is always split at newline characters ('\n').
//
// Text must not be escaped.
// BUG(tslocum) Text containing square brackets is not escaped properly.
// Use TextView.SetWrapWidth where possible.
//
// Issue: https://code.rocketnine.space/tslocum/cview/issues/27
func WordWrap(text string, width int) (lines []string) {
colorTagIndices, _, _, _, escapeIndices, strippedText, _ := decomposeText([]byte(text), true, false)
@ -550,7 +553,7 @@ func WordWrap(text string, width int) (lines []string) {
for index := escapePos; index >= 0; index-- {
if index < len(escapeIndices) && startIndex > escapeIndices[index][0] && startIndex < escapeIndices[index][1]-1 {
pos := escapeIndices[index][1] - 2 - startIndex
if pos < 0 || pos > len(substr) {
if pos < 0 || pos > len(substr) { // Workaround for issue #27
return substr
}
return substr[:pos] + substr[pos+1:]
@ -575,7 +578,7 @@ func WordWrap(text string, width int) (lines []string) {
}
// Is this a breakpoint?
if breakpointPos < len(breakpoints) && textPos+tagOffset == breakpoints[breakpointPos][0]+1 {
if breakpointPos < len(breakpoints) && textPos+tagOffset == breakpoints[breakpointPos][0] {
// Yes, it is. Set up breakpoint infos depending on its type.
lastBreakpoint = breakpoints[breakpointPos][0] + tagOffset
lastContinuation = breakpoints[breakpointPos][1] + tagOffset