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move subtraction by one out of prompt_pure_string_length

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prompt_pure_string_length is used for calculating the length of the
preprompt, but the preprompt doesn't contain a newline, so we shouldn't
subtract by one in prompt_pure_string_length.

What should happen instead is that when we subtract one from the length
when we calculate the number of lines the preprompt occupies.
This commit is contained in:
Zhiming Wang
2015-07-13 00:49:29 -07:00
parent b1b44b3204
commit 57bfd997a5
1 changed files with 2 additions and 3 deletions
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pure.zsh
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@@ -76,8 +76,7 @@ prompt_pure_preexec() {
# string length ignoring ansi escapes
prompt_pure_string_length() {
# Subtract one since newline is counted as two characters
echo $(( ${#${(S%%)1//(\%([KF1]|)\{*\}|\%[Bbkf])}} - 1 ))
echo $(( ${#${(S%%)1//(\%([KF1]|)\{*\}|\%[Bbkf])}} ))
}
prompt_pure_preprompt_render() {
@@ -108,7 +107,7 @@ prompt_pure_preprompt_render() {
# calculate length of preprompt for redraw purposes
local preprompt_length=$(prompt_pure_string_length $preprompt)
local lines=$(( $preprompt_length / $COLUMNS + 1 ))
local lines=$(( ($preprompt_length - 1) / $COLUMNS + 1 ))
# disable clearing of line if last char of preprompt is last column of terminal
local clr="\e[K"