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Accept usage of different pagers #12

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Accept usage of different pagers #12

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20 changes: 19 additions & 1 deletion bin/mad
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,24 @@ display_file() {
local strong=$(get strong)
local em=$(get em)

# Not any pager is supported, only the most popular:
# - more
local more_options=""
# - less
local less_options="-R"
# - vimpager
local vimpager_options=""
# the others may be supported or not, excluding the following,
# known as unsupported:
# - most
local pagers_unsupported="\(most\)" # sed regexp

# choose pager
local pager_default="less"
local pager_cmd=${PAGER:-${pager_default}}
# Replace unsupported pagers with the default one.
pager_cmd=$(echo ${pager_cmd} | sed "s|${pagers_unsupported}|${pager_default}|")

cat $1 \
| perl -pe "
s|^#+ *(.+)|\e[$heading\1\e[0m|g; \
Expand All @@ -90,7 +108,7 @@ display_file() {
s| (.+)| \e[$code\1\e[0m|g; \
s|<(.+?)>||g; \
s|^| |;" \
| less -R
| ${pager_cmd} $(eval "echo \$${pager_cmd}_options")
exit
}

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