Allow spaceship:section arguments to contain escapes

docs/API.md

@@ -96,6 +96,8 @@ echo $SPACESHIP_ROOT
 
 This command displays prompt section prefixed with `prefix`, suffixed with `suffix` and `content` painted in `color`. **Bold** style is applied by default.
 
+`prefix`, `suffix` and `content` can contain escapes to set additinal foreground color, background color and other visual effects. Read more about escapes in [13 Prompt Expansion](http://zsh.sourceforge.net/Doc/Release/Prompt-Expansion.html) section of Zsh documentation.
+
 If `SPACESHIP_PROMPT_PREFIXES_SHOW` is `false` or if the section is not the first in the prompt, then `prefix` will be omitted.
 
 If `SPACESHIP_PROMPT_SUFFIXES_SHOW` is `false`, then `suffix` will be omitted.

lib/section.zsh

@@ -14,22 +14,22 @@ spaceship::section() {
 
   [[ -z $3 && -z $4 ]] && content=$2 prefix=''
 
-  echo -n "%{%B%}" # set bold
+  print -nP "%{%B%}" # set bold
   if [[ $spaceship_prompt_opened == true ]] && [[ $SPACESHIP_PROMPT_PREFIXES_SHOW == true ]]; then
-    echo -n "$prefix"
+    print -nP "$prefix"
   fi
   spaceship_prompt_opened=true
-  echo -n "%{%b%}" # unset bold
+  print -nP "%{%b%}" # unset bold
 
-  echo -n "%{%B$color%}" # set color
-  echo -n "$content"     # section content
-  echo -n "%{%b%f%}"     # unset color
+  print -nP "%{%B$color%}" # set color
+  print -nP "$content"     # section content
+  print -nP "%{%b%f%}"     # unset color
 
-  echo -n "%{%B%}" # reset bold, if it was diabled before
+  print -nP "%{%B%}" # reset bold, if it was diabled before
   if [[ $SPACESHIP_PROMPT_SUFFIXES_SHOW == true ]]; then
-    echo -n "$suffix"
+    print -nP "$suffix"
   fi
-  echo -n "%{%b%}" # unset bold
+  print -nP "%{%b%}" # unset bold
 }
 
 # Compose whole prompt from sections