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-rw-r--r--Functions/Zle/replace-string-again45
1 files changed, 45 insertions, 0 deletions
diff --git a/Functions/Zle/replace-string-again b/Functions/Zle/replace-string-again
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index 000000000..122f0a8ee
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+++ b/Functions/Zle/replace-string-again
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+# Back end for replace-string; can be called as a widget to repeat
+# the previous replacement. _replace_string_src and _replace_string_rep
+# are global.
+
+# When called from replace-string, we need to use the widget
+# name passed to decide whether to do pattern matching: the widget
+# may since have been overwritten.
+local MATCH MBEGIN MEND curwidget=${1:-$WIDGET}
+local -a match mbegin mend
+
+if [[ -z $_replace_string_src ]]; then
+ zle -M No string to replace.
+fi
+
+if [[ $curwidget = *pattern* ]]; then
+ local rep2
+ # The following horror is so that an & preceded by an even
+ # number of backslashes is active, without stripping backslashes,
+ # while preceded by an odd number of backslashes is inactive,
+ # with one backslash being stripped. A similar logic applies
+ # to \digit.
+ local rep=$_replace_string_rep
+ while [[ $rep = (#b)([^\\]#)(\\\\)#(\\|)(\&|\\<->|\\\{<->\})(*) ]]; do
+ if [[ -n $match[3] ]]; then
+ # Expression is quoted, strip quotes
+ rep2="${match[1]}${match[2]}${match[4]}"
+ else
+ rep2+="${match[1]}${match[2]}"
+ if [[ $match[4] = \& ]]; then
+ rep2+='${MATCH}'
+ elif [[ $match[4] = \\\{* ]]; then
+ rep2+='${match['${match[4][3,-2]}']}'
+ else
+ rep2+='${match['${match[4][2,-1]}']}'
+ fi
+ fi
+ rep=${match[5]}
+ done
+ rep2+=$rep
+ LBUFFER=${LBUFFER//(#bm)$~_replace_string_src/${(e)rep2}}
+ RBUFFER=${RBUFFER//(#bm)$~_replace_string_src/${(e)rep2}}
+else
+ LBUFFER=${LBUFFER//$_replace_string_src/$_replace_string_rep}
+ RBUFFER=${RBUFFER//$_replace_string_src/$_replace_string_rep}
+fi