iron out bugs in the new rendered; rename TRANSFORMER to EXPANSION

internal/p10k.zsh

@@ -129,7 +129,7 @@ _p9k_escape_rcurly() {
 }
 
 _p9k_escape() {
-  _P9K_RETVAL="\${(Q)\${:-${(qqq)${(q)1}}}}"
+  [[ $1 == *["~!#\$^&*()\\\"'<>?{}[]"]* ]] && _P9K_RETVAL="\${(Q)\${:-${(qqq)${(q)1}}}}" || _P9K_RETVAL=$1
 }
 
 # Begin a left prompt segment.
@@ -160,13 +160,25 @@ left_prompt_segment() {
     _p9k_get_icon LEFT_SUBSEGMENT_SEPARATOR
     local subsep=$_P9K_RETVAL
 
+    local icon_
+    if [[ -n $5 ]]; then
+      _p9k_get_icon $5
+      _p9k_escape $_P9K_RETVAL
+      icon_=$_P9K_RETVAL
+    fi
+
     local line_start=$POWERLEVEL9K_LEFT_PROMPT_FIRST_SEGMENT_START_SYMBOL
-    [[ -n $line_start ]] && line_start="%b%k%F{$bg_color}$line_start"
+    [[ -n $line_start ]] && line_start="%k%F{$bg_color}$line_start"
 
     local style=%b$bg$fg
     _p9k_escape_rcurly $style
     local style_=$_P9K_RETVAL
 
+    local space=$POWERLEVEL9K_WHITESPACE_BETWEEN_LEFT_SEGMENTS
+    [[ $space == *%* ]] && space+=$style
+    _p9k_escape $space
+    local space_=$_P9K_RETVAL
+
     local state=${(U)${1}#prompt_}
 
     # Segment separator logic:
@@ -175,79 +187,78 @@ left_prompt_segment() {
     #     1
     #   elif (( joined )); then
     #     2
-    #   elif [[ $bg_color == $_P9K_BG ]]; then
+    #   elif [[ $bg_color == (${_P9K_BG}|${_P9K_BG:-0}) ]]; then
     #     3
     #   else
     #     4
     #   fi
 
     local t=$#_P9K_T
-    _P9K_T+=$line_start              # 1
-    _P9K_T+=''                                                                       # 2
+    _P9K_T+=$line_start$style$space               # 1
+    _P9K_T+=$style                                # 2
     if [[ -z $fg_color ]]; then
       _p9k_foreground $DEFAULT_COLOR
-      _P9K_T+=%b$bg$_P9K_RETVAL$subsep    # 3
+      _P9K_T+=$bg$_P9K_RETVAL$subsep$style$space  # 3
     else
-      _P9K_T+=$style$subsep             # 3
+      _P9K_T+=$bg$fg$subsep$style$space           # 3
     fi
     _p9k_get_icon LEFT_SEGMENT_SEPARATOR
-    _P9K_T+=%b$bg%F{\$_P9K_BG}$_P9K_RETVAL             # 4
+    _P9K_T+=$bg$_P9K_RETVAL$style$space           # 4
 
     local p=
-
-    local p='${P9K_VISUAL_IDENTIFIER::='
-    if [[ -n $5 ]]; then
-      _p9k_get_icon $5
-      [[ -n $_P9K_RETVAL ]] && p+="\${(Q)\${:-${(qqq)${(q)_P9K_RETVAL}}}}"
-    fi
-    p+='}'
-
-    p+="\${_P9K_N::=}"
+    p+="\${_P9K_N::=}\${_P9K_F::=}"
     p+="\${\${\${_P9K_BG:-0}:#NONE}:-\${_P9K_N::=$((t+1))}}"                             # 1
     p+="\${_P9K_N:=\${\${\$((_P9K_I>=$_P9K_LEFT_JOIN[$2])):#0}:+$((t+2))}}"              # 2
-    p+="\${_P9K_N:=\${\${\$((!\${#\${:-0\$_P9K_BG}:#0$bg_color})):#0}:+$((t+3))}}"  # 3
-    p+="\${_P9K_N:=$((t+4))}"                      # 4
+    p+="\${_P9K_N:=\${\${(M)\${:-x$bg_color}:#x(\$_P9K_BG|\${_P9K_BG:-0})}:+$((t+3))}}"  # 3
+    p+="\${_P9K_N:=\${\${_P9K_F::=%F{\$_P9K_BG\}}:+$((t+4))}}"                           # 4
 
-    p+="\${_P9K_I::=$2}"
+    p+="\${_P9K_I::=$2}\${_P9K_BG::=$bg_color}"
 
-    p+='${_P9K_C::='
-    local var=POWERLEVEL9K_${state}_CONTENT_TRANSFORMER
-    (( $+parameters[$var] )) && p+=${(P)var} || p+='${P9K_CONTENT}'
-    p+='}'
+    local icon_exp=POWERLEVEL9K_${state}_VISUAL_IDENTIFIER_EXPANSION
+    (( $+parameters[$icon_exp] )) && icon_exp=${(P)icon_exp} || icon_exp='${P9K_VISUAL_IDENTIFIER}'
+    local content_exp=POWERLEVEL9K_${state}_CONTENT_EXPANSION
+    (( $+parameters[$content_exp] )) && content_exp=${(P)content_exp} || content_exp='${P9K_CONTENT}'
 
-    p+='${_P9K_V::='
-    local var=POWERLEVEL9K_${state}_VISUAL_IDENTIFIER_TRANSFORMER
-    (( $+parameters[$var] )) && p+=${(P)var} || p+='${P9K_P9K_VISUAL_IDENTIFIER}'
-    p+='}'
+    if [[ $icon_exp == '${P9K_VISUAL_IDENTIFIER}' && $content_exp == '${P9K_CONTENT}' ]]; then
+      p+="\${_P9K_V::=$icon_"
+      [[ $icon_ == *%* ]] && p+=$style_
+      p+="}"
+    else
+      p+="\${P9K_VISUAL_IDENTIFIER::=$icon}\${_P9K_V::=$icon_exp$style_}"
+    fi
 
-    _p9k_escape $POWERLEVEL9K_WHITESPACE_BETWEEN_LEFT_SEGMENTS
-    local space_=$_P9K_RETVAL
+    p+="\${_P9K_C::=$content_exp}"
 
     p+='}+}'
 
     _p9k_get_icon ${state}_PREFIX
     _p9k_escape $_P9K_RETVAL
-    p+="\${_P9K_T[\$_P9K_N]}$style_$space_$style_$_P9K_RETVAL"
+    p+="%b\${_P9K_F}\${_P9K_T[\$_P9K_N]}$_P9K_RETVAL"
+    [[ $_P9K_RETVAL == *%* ]] && local -i need_style=1 || local -i need_style=0
 
     _p9k_color $fg_color $1 VISUAL_IDENTIFIER_COLOR
     _p9k_foreground $_P9K_RETVAL
-    _p9k_escape %b$bg$_P9K_RETVAL
-    p+="$_P9K_RETVAL\$_P9K_V$style_"
+    _p9k_escape_rcurly %b$bg$_P9K_RETVAL
+    [[ $_P9K_RETVAL != $style_ || $need_style == 1 ]] && p+=$_P9K_RETVAL
+    p+="\$_P9K_V"
 
-    # TODO: Fix this. Output space only if _P9K_V and _P9K_C are both non-empty.
-    p+='${${(%):-$_P9K_V%1(l. .x)}[-1]:#x}'
+    p+='${${(%):-$_P9K_V%1(l.${(%):-$_P9K_C%1(l. .x)}.x)}[-1]:#x}'
 
     _p9k_get_icon ${state}_SUFFIX
     _p9k_escape $_P9K_RETVAL
-    p+="\${_P9K_C}$style_$_P9K_RETVAL$style_$space_\${\${_P9K_BG::=$bg_color}+}"
-
-    p+='}'
+    p+="\${_P9K_C}$style_$_P9K_RETVAL"
+    [[ $_P9K_RETVAL == *%* ]] && p+=$style_
+    p+=$space_
 
     _p9k_cache_set "$p"
   fi
 
-  (( $6 )) && local content=$8 || local content="\${(Q)\${:-${(qqq)${(q)8}}}}"
-  _P9K_PROMPT+="\${\${:-${7:-1}}:+\${\${:-\${P9K_CONTENT::=$content}$_P9K_CACHE_VAL[1]"
+  (( $6 )) && _P9K_RETVAL=$8 || _p9k_escape $8
+  if [[ -z $7 ]]; then
+    _P9K_PROMPT+="\${\${:-\${P9K_CONTENT::=$_P9K_RETVAL}$_P9K_CACHE_VAL[1]"
+  else
+  _P9K_PROMPT+="\${\${:-$7}:+\${\${:-\${P9K_CONTENT::=$_P9K_RETVAL}$_P9K_CACHE_VAL[1]}"
+  fi
 }
 
 # The same as left_prompt_segment above but for the right prompt.
@@ -320,7 +331,7 @@ right_prompt_segment() {
       local space=$_P9K_RETVAL
     fi
 
-    local tr=POWERLEVEL9K_${state}_CONTENT_TRANSFORMER
+    local tr=POWERLEVEL9K_${state}_CONTENT_EXPANSION
     (( $+parameters[$tr] )) && tr=${(P)tr} || tr='${P9K_CONTENT}'
 
     _p9k_get_icon ${state}_SUFFIX