#!/bin/sh
-# Copyright 2016 - 2018 Paul Hänsch
+# Copyright 2016 - 2019 Paul Hänsch
#
# This file is part of cgilite.
#
# Parse the allowable date formats from Section 3.3.1 of
# https://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html
HEADER If-Modified-Since \
- | sed -r 's;^[^ ]+, ([0-9]{2}) (...) ([0-9]{4}) (..:..:..) GMT$;\3-\2-\1 \4;;
+ | sed -E 's;^[^ ]+, ([0-9]{2}) (...) ([0-9]{4}) (..:..:..) GMT$;\3-\2-\1 \4;;
s;^[^ ]+, ([0-9]{2})-(...)-([789][0-9]) (..:..:..) GMT$;19\3-\2-\1 \4;;
s;^[^ ]+, ([0-9]{2})-(...)-([0-6][0-9]) (..:..:..) GMT$;20\3-\2-\1 \4;;
s;^[^ ]+ (...) ([0-9]{2}) (..:..:..) ([0-9]{4})$;\4-\1-\2 \3;;
| xargs -r0 date +%s -ud 2>&-
)"
- range="$(HEADER Range |sed -nr 's;^bytes=([0-9]+-[0-9]*|-[0-9]+)$;\1;p;q;')"
+ range="$(HEADER Range |sed -nE 's;^bytes=([0-9]+-[0-9]*|-[0-9]+)$;\1;p;q;')"
case "$range" in
*-) range="${range}$((file_size - 1))";;
-*) [ ${range#-} -le $file_size ] \
#!/bin/sh
-# Copyright 2018 Paul Hänsch
+# Copyright 2018, 2019 Paul Hänsch
#
# This is a file format helper, part of CGIlite.
#
STRING(){
{ [ $# -eq 0 ] && cat || printf %s "$*"; } \
- | sed -r ':X; $!{N;bX;}'"$STRING"
+ | sed -E ':X; $!{N;bX;}'"$STRING"
}
UNSTRING='
'
UNSTRING(){
{ [ $# -eq 0 ] && cat || printf %s "$*"; } \
- | sed -r "$UNSTRING"
+ | sed -E "$UNSTRING"
}