ansi functions library

lib/ansi.bash

@@ -0,0 +1,60 @@
+# CONSTANTS
+
+# MARGIN=0
+PADDING=0
+ANSI_RESET='\e[0m'
+declare -A FG_COLORS
+FG_COLORS["RED"]='\e[31m'
+FG_COLORS["GREEN"]='\e[32m'
+FG_COLORS["YELLOW"]='\e[93m'
+FG_COLORS["BLUE"]='\e[34m'
+FG_COLORS["CYAN"]='\e[36m'
+FG_COLORS["MAGENTA"]='\e[95m'
+FG_COLORS["GRAY"]='\e[90m'
+
+# FUNCTIONS
+
+function ansi_length {
+  local clean_text
+  clean_text=$(echo "$1" | sed 's/\x1B\[[0-9;]*m//g')
+  echo "${#clean_text}"
+}
+
+function style_padding {
+  local padding_left=${PADDING_LEFT:-$PADDING}
+  local padding_right=${PADDING_RIGHT:-$PADDING}
+
+  for _ in $(seq 1 "${padding_left}"); do builtin echo -n ' '; done
+  builtin echo -n "$1"
+  for _ in $(seq 1 "${padding_right}"); do builtin echo -n ' '; done
+}
+
+function _style_fg {
+  [[ -n $1 ]] && echo "${FG_COLORS[$1]}" || true
+}
+
+function style_ansi {
+  local fg
+  fg=$(_style_fg "${FG:-}")
+  # local bg=${BG:-}
+  [[ -n $fg ]] && builtin echo -en "$fg"
+  builtin echo -en "$1"
+  [[ -n $fg ]] && builtin echo -en "$ANSI_RESET"
+}
+
+function style_block {
+  local content length
+  content=$(style_padding "$1")
+  length=$(ansi_length "$content")
+  length=$((length + 2))
+
+  builtin echo -n "╔"
+  for _ in $(seq 1 "${length}"); do builtin echo -n '═'; done
+  builtin echo "╗"
+
+  builtin echo "║ $content ║"
+
+  builtin echo -n "╚"
+  for _ in $(seq 1 "${length}"); do builtin echo -n '═'; done
+  builtin echo "╝"
+}

test/stub/scenario.bash

@@ -14,6 +14,10 @@ function do_success {
     echo -n "$*"
   )
   echo ']'
+  source "${MIAOU_BASH_DIR}/lib/ansi.bash"
+  local content
+  content=$(FG=MAGENTA style_ansi "this is success")
+  FG=GRAY PADDING=8 style_block "$content"
 }
 
 function do_unbound_variable {