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author | johnjay <johnjay@localhost> | 2006-07-28 04:33:26 +0000 |
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committer | johnjay <johnjay@localhost> | 2006-07-28 04:33:26 +0000 |
commit | 56cbf2034f0d64858b0027a5c6cd968204b09ce0 (patch) | |
tree | b37427be44e95f853eaa1841432971dc46037e40 /eclass | |
parent | dev-db/kpogre: Version bump to v1.3.9 (diff) | |
download | experimental-56cbf2034f0d64858b0027a5c6cd968204b09ce0.tar.gz experimental-56cbf2034f0d64858b0027a5c6cd968204b09ce0.tar.bz2 experimental-56cbf2034f0d64858b0027a5c6cd968204b09ce0.zip |
eclass/einput.eclass - added einput_multi_prompt function
svn path=/experimental/; revision=36
Diffstat (limited to 'eclass')
-rw-r--r-- | eclass/einput.eclass | 72 |
1 files changed, 69 insertions, 3 deletions
diff --git a/eclass/einput.eclass b/eclass/einput.eclass index dde78a8..136e7dc 100644 --- a/eclass/einput.eclass +++ b/eclass/einput.eclass @@ -40,10 +40,15 @@ EINPUT_COLORS=( ) # Stores the user input received by the last einput function called (with the -# exception of einput_confirm(), which returns the user's choice as its own exit +# exception of einput_confirm(), which stores the user's choice and its own exit # status). EINPUT_ANSWER="" +# Stores the user input received by the last einput function called (with the +# exception of einput_confirm(), which stores the user's choice and its own exit +# status). This answer is always in lower-case. +EINPUT_IANSWER="" + # Set EINPUT_NOCOLOR to "0" to disable colorized output, or "1" to allow it. # After inheriting this eclass ebuilds may set this var directly, but it's # preferred to rely on the value supplied here by portageq. @@ -64,7 +69,8 @@ fi # This default can be set with the optional default_value parameter; accepted # values are "0" (corresponding to "no") and "1" (for "yes"). # -# Returns: Exit status 0 for "no", exit status 1 for "yes" +# Returns: Exit status 0 for "no", exit status 1 for "yes", stores user answer +# in $EINPUT_ANSWER and for case insensitive comparisons in $EINPUT_IANSWER # Default: default_value if given, else 1 # # Example: einput_confirm "Are you sure you want to rm -rf /?" "0" @@ -95,13 +101,20 @@ einput_confirm() { echo case "$answer" in [yY]*) + EINPUT_ANSWER=${string_yes} + EINPUT_IANSWER=`echo -n ${EINPUT_ANSWER} | tr [:upper:] [:lower:]` return 1 ;; [nN]*) + EINPUT_ANSWER=${string_no} + EINPUT_IANSWER=`echo -n ${EINPUT_ANSWER} | tr [:upper:] [:lower:]` return 0 ;; "") - [[ "$2" == "0" ]] && return 0 + [[ "$2" == "0" ]] && EINPUT_ANSWER=${string_no} && \ + EINPUT_IANSWER=`echo -n ${EINPUT_ANSWER} | tr [:upper:] [:lower:]` && return 0 + EINPUT_ANSWER=${string_yes} + EINPUT_IANSWER=`echo -n ${EINPUT_ANSWER} | tr [:upper:] [:lower:]` return 1 ;; *) @@ -121,6 +134,7 @@ einput_confirm() { # Matching of user input against option strings is case-sensitive. # # Returns: The chosen option as a string, stored in global $EINPUT_ANSWER +# and lower case for case-insensitive comparisons in global $EINPUT_IANSWER. # Default: none # # Example: einput_list "1" "List Entry" "2" "List File" "Choose a listing style" @@ -150,6 +164,7 @@ einput_list() { done done EINPUT_ANSWER="$answer" + EINPUT_IANSWER=`echo -n ${EINPUT_ANSWER} | tr [:upper:] [:lower:]` } # Usage: einput_prompt prompt [ default_value ] @@ -160,6 +175,7 @@ einput_list() { # is given, the brackets will be empty. # # Returns: The user's response as a string, stored in global $EINPUT_ANSWER +# and lower case for case-insensitive comparisons in global $EINPUT_IANSWER. # Default: default_value if given, else an empty string "" # # Example: einput_prompt "Is Gentoo a good Linux distro?" "Yes it is Jim" @@ -173,6 +189,7 @@ einput_prompt() { else EINPUT_ANSWER="$answer" fi + EINPUT_IANSWER=`echo -n ${EINPUT_ANSWER} | tr [:upper:] [:lower:]` } # Usage: einput_prompt_secret prompt @@ -181,6 +198,7 @@ einput_prompt() { # for when some operation requires a different set of user privileges. # # Returns: The user's response as a string, stored in global $EINPUT_ANSWER +# and lower case for case-insensitive comparisons in global $EINPUT_IANSWER. # Default: none # # Example: einput_prompt_secret "Please enter your root password" @@ -191,4 +209,52 @@ einput_prompt_secret() { echo echo EINPUT_ANSWER="$answer" + EINPUT_IANSWER=`echo -n ${EINPUT_ANSWER} | tr [:upper:] [:lower:]` +} + +# Usage: einput_multi_prompt prompt option1 [ option2 ... ] default_value +# +# Display an in-line input prompt with a set of options. +# If default_value is specified, its value will be displayed between brackets +# at the end of the prompt, highlighted in green +# letters (unless the environment variable NOCOLOR is set). If no default value +# is given, the brackets will be empty. +# +# Returns: The user's response as a string, stored in global $EINPUT_ANSWER +# and lower case for case-insensitive comparisons in global $EINPUT_IANSWER +# Default: default_value if given, else an empty string "" +# +# Example: einput_multi_prompt "Please select your bindings" "C" "C++" "Python" "C" +# +einput_multi_prompt() { + local choices=( ) + local num_choices=$(( ($# - 2) )) + local prompt="${BOLD}${1}${NORMAL}" + shift + local display_choices="" + for (( i = 0, j = 0 ; i < num_choices ; i++, j++ )) ; do + (( j == ${#EINPUT_COLORS[*]} )) && j=0 + display_choices="${display_choices}${EINPUT_COLORS[${j}]}${1}" + choices[$i]="$1" + shift + if [ $i -lt $# ];then + display_choices="${display_choices}${NORMAL}/" + fi + done + echo -n "${prompt} ${NORMAL}<${display_choices}${NORMAL}> " + while true ; do + echo -n "${NORMAL}[${GREEN}${1}${NORMAL}]" + read -rp ": " answer + echo + for choice in ${choices[*]} ; do + if [[ "$choice" == "$answer" ]] ; then + break 2 + elif [[ "$choice" == "${choices[$((num_choices - 1))]}" ]] ; then + echo "!!! Invalid answer, try again." + echo + fi + done + done + EINPUT_ANSWER="$answer" + EINPUT_IANSWER=`echo -n ${EINPUT_ANSWER} | tr [:upper:] [:lower:]` } |