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####################################################################
# REPL.awk #
####################################################################
# Welcome message.
function welcome() {
if (Option["fmt-welcome-message"])
print prettify("welcome-message", Option["fmt-welcome-message"]) > STDERR
if (Option["fmt-welcome-submessage"])
print prettify("welcome-submessage", Option["fmt-welcome-submessage"]) > STDERR
}
# Prompt for interactive session.
function prompt( i, p, temp) {
p = Option["fmt-prompt"]
# Format specifiers supported by strftime().
# Roughly following ISO 8601:1988, with the notable exception of "%S", "%t" and "%T".
# GNU libc extensions like "%l", "%s" and "%_*" are not supported.
# See: <https://www.gnu.org/software/gawk/manual/html_node/Time-Functions.html>
# <http://pubs.opengroup.org/onlinepubs/007908799/xsh/strftime.html>
if (p ~ /%a/) gsub(/%a/, strftime("%a"), p)
if (p ~ /%A/) gsub(/%A/, strftime("%A"), p)
if (p ~ /%b/) gsub(/%b/, strftime("%b"), p)
if (p ~ /%B/) gsub(/%B/, strftime("%B"), p)
if (p ~ /%c/) gsub(/%c/, strftime("%c"), p)
if (p ~ /%C/) gsub(/%C/, strftime("%C"), p)
if (p ~ /%d/) gsub(/%d/, strftime("%d"), p)
if (p ~ /%D/) gsub(/%D/, strftime("%D"), p)
if (p ~ /%e/) gsub(/%e/, strftime("%e"), p)
if (p ~ /%F/) gsub(/%F/, strftime("%F"), p)
if (p ~ /%g/) gsub(/%g/, strftime("%g"), p)
if (p ~ /%G/) gsub(/%G/, strftime("%G"), p)
if (p ~ /%h/) gsub(/%h/, strftime("%h"), p)
if (p ~ /%H/) gsub(/%H/, strftime("%H"), p)
if (p ~ /%I/) gsub(/%I/, strftime("%I"), p)
if (p ~ /%j/) gsub(/%j/, strftime("%j"), p)
if (p ~ /%m/) gsub(/%m/, strftime("%m"), p)
if (p ~ /%M/) gsub(/%M/, strftime("%M"), p)
if (p ~ /%n/) gsub(/%n/, strftime("%n"), p)
if (p ~ /%p/) gsub(/%p/, strftime("%p"), p)
if (p ~ /%r/) gsub(/%r/, strftime("%r"), p)
if (p ~ /%R/) gsub(/%R/, strftime("%R"), p)
if (p ~ /%u/) gsub(/%u/, strftime("%u"), p)
if (p ~ /%U/) gsub(/%U/, strftime("%U"), p)
if (p ~ /%V/) gsub(/%V/, strftime("%V"), p)
if (p ~ /%w/) gsub(/%w/, strftime("%w"), p)
if (p ~ /%W/) gsub(/%W/, strftime("%W"), p)
if (p ~ /%x/) gsub(/%x/, strftime("%x"), p)
if (p ~ /%X/) gsub(/%X/, strftime("%X"), p)
if (p ~ /%y/) gsub(/%y/, strftime("%y"), p)
if (p ~ /%Y/) gsub(/%Y/, strftime("%Y"), p)
if (p ~ /%z/) gsub(/%z/, strftime("%z"), p)
if (p ~ /%Z/) gsub(/%Z/, strftime("%Z"), p)
# %_ : prompt message
if (p ~ /%_/)
gsub(/%_/, showTranslationsOf(Option["hl"]), p)
# %l : home language
if (p ~ /%l/)
gsub(/%l/, getDisplay(Option["hl"]), p)
# %L : home language (English name)
if (p ~ /%L/)
gsub(/%L/, getName(Option["hl"]), p)
# %s : source language
# 's' is the format-control character for string
# %S : source language (English name)
if (p ~ /%S/)
gsub(/%S/, getName(Option["sl"]), p)
# %t : target languages, separated by "+"
if (p ~ /%t/) {
temp = getDisplay(Option["tl"][1])
for (i = 2; i <= length(Option["tl"]); i++)
temp = temp "+" getDisplay(Option["tl"][i])
gsub(/%t/, temp, p)
}
# %T : target languages (English names), separated by "+"
if (p ~ /%T/) {
temp = getName(Option["tl"][1])
for (i = 2; i <= length(Option["tl"]); i++)
temp = temp "+" getName(Option["tl"][i])
gsub(/%T/, temp, p)
}
# %, : target languages, separated by ","
if (p ~ /%,/) {
temp = getDisplay(Option["tl"][1])
for (i = 2; i <= length(Option["tl"]); i++)
temp = temp "," getDisplay(Option["tl"][i])
gsub(/%,/, temp, p)
}
# %< : target languages (English names), separated by ","
if (p ~ /%</) {
temp = getName(Option["tl"][1])
for (i = 2; i <= length(Option["tl"]); i++)
temp = temp "," getName(Option["tl"][i])
gsub(/%</, temp, p)
}
# %/ : target languages, separated by "/"
if (p ~ /%\//) {
temp = getDisplay(Option["tl"][1])
for (i = 2; i <= length(Option["tl"]); i++)
temp = temp "/" getDisplay(Option["tl"][i])
gsub(/%\//, temp, p)
}
# %? : target languages (English names), separated by "/"
if (p ~ /%\?/) {
temp = getName(Option["tl"][1])
for (i = 2; i <= length(Option["tl"]); i++)
temp = temp "/" getName(Option["tl"][i])
gsub(/%\?/, temp, p)
}
# %s : source language
printf(prettify("prompt", p), getDisplay(Option["sl"])) > STDERR
}
# REPL.
function repl(line, command, group, name, i, value, words) {
split(line, words, " ")
command = words[1]
if (command ~ /^:(q|quit)$/) {
exit
} else if (command ~ /^:set$/) {
name = words[2]
value = words[3]
Option[name] = value
} else if (command ~ /^:show$/) {
name = words[2]
print prettify("welcome-submessage", toString(Option[name], 1, 0, 1))
} else if (command ~ /^:engine$/) {
value = words[2]
Option["engine"] = value
initHttpService()
} else {
match(command, /^[{(\[]?([[:alpha:]][[:alpha:]][[:alpha:]]?(-[[:alpha:]][[:alpha:]][[:alpha:]]?[[:alpha:]]?)?)?(:|=)((@?[[:alpha:]][[:alpha:]][[:alpha:]]?(-[[:alpha:]][[:alpha:]][[:alpha:]]?[[:alpha:]]?)?\+)*(@?[[:alpha:]][[:alpha:]][[:alpha:]]?(-[[:alpha:]][[:alpha:]][[:alpha:]]?[[:alpha:]]?)?)?)[})\]]?$/, group)
if (RSTART) {
if (group[1]) Option["sl"] = group[1]
if (group[4]) split(group[4], Option["tl"], "+")
line = words[2]
for (i = 3; i <= length(words); i++)
line = line " " words[i]
}
if (line) {
translate(line)
# Interactive verbose mode: newline after each translation
if (Option["verbose"]) printf RS
}
}
prompt()
}
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