diff options
Diffstat (limited to 'usr.sbin/bsdconfig/share/strings.subr')
| -rw-r--r-- | usr.sbin/bsdconfig/share/strings.subr | 68 |
1 files changed, 67 insertions, 1 deletions
diff --git a/usr.sbin/bsdconfig/share/strings.subr b/usr.sbin/bsdconfig/share/strings.subr index 6fe0f32..5b9f51e 100644 --- a/usr.sbin/bsdconfig/share/strings.subr +++ b/usr.sbin/bsdconfig/share/strings.subr @@ -1,6 +1,6 @@ if [ ! "$_STRINGS_SUBR" ]; then _STRINGS_SUBR=1 # -# Copyright (c) 2006-2012 Devin Teske +# Copyright (c) 2006-2013 Devin Teske # All Rights Reserved. # # Redistribution and use in source and binary forms, with or without @@ -101,6 +101,72 @@ f_isinteger() ( : $((0/$arg)) ) > /dev/null 2>&1 } +# f_uriencode [$text] +# +# Encode $text for the purpose of embedding safely into a URL. Non-alphanumeric +# characters are converted to `%XX' sequence where XX represents the hexa- +# decimal ordinal of the non-alphanumeric character. If $text is missing, data +# is instead read from standard input. +# +f_uriencode_awk=' +BEGIN { + output = "" + for (n = 0; n < 256; n++) pack[sprintf("%c", n)] = sprintf("%%%02x", n) +} +{ + sline = "" + slen = length($0) + for (n = 1; n <= slen; n++) { + char = substr($0, n, 1) + if ( char !~ /^[[:alnum:]_]$/ ) char = pack[char] + sline = sline char + } + output = output ( output ? "%0a" : "" ) sline +} +END { print output } +' +f_uriencode() +{ + if [ $# -gt 0 ]; then + echo "$1" | awk "$f_uriencode_awk" + else + awk "$f_uriencode_awk" + fi +} + +# f_uridecode [$text] +# +# Decode $text from a URI. Encoded characters are converted from their `%XX' +# sequence into original unencoded ASCII sequences. If $text is missing, data +# is instead read from standard input. +# +f_uridecode_awk=' +BEGIN { for (n = 0; n < 256; n++) chr[n] = sprintf("%c", n) } +{ + sline = "" + slen = length($0) + for (n = 1; n <= slen; n++) + { + seq = substr($0, n, 3) + if ( seq ~ /^%[[:xdigit:]][[:xdigit:]]$/ ) { + hex = substr(seq, 2, 2) + sline = sline chr[sprintf("%u", "0x"hex)] + n += 2 + } else + sline = sline substr(seq, 1, 1) + } + print sline +} +' +f_uridecode() +{ + if [ $# -gt 0 ]; then + echo "$1" | awk "$f_uridecode_awk" + else + awk "$f_uridecode_awk" + fi +} + f_dprintf "%s: Successfully loaded." strings.subr fi # ! $_STRINGS_SUBR |
