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Diffstat (limited to 'src/cmd/index/num.collapse')
| -rw-r--r-- | src/cmd/index/num.collapse | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/cmd/index/num.collapse b/src/cmd/index/num.collapse new file mode 100644 index 00000000..47203f52 --- /dev/null +++ b/src/cmd/index/num.collapse @@ -0,0 +1,21 @@ +awk ' # num.collapse +# Input: lines of form: string (tab) num1 [(space) num2] +# Output: lines of form: string (tab) fancy.num.list +# +# fancy.num.list contains items, separated by ", ", of form: num or num-num +# Sequence of input lines with same value of string is combined +# into a single output line. Each input line contributes either +# num or num-num to output line. + +BEGIN { FS = OFS = "\t" } + + { sub(/ /, "\\(en", $2) } # use - if there is no en dash + +$1 != p { p = $1 + if (NR > 1) printf "\n" + printf "%s\t%s", $1, $2 + next + } + { printf ", %s", $2 } +END { if (NR > 0) printf "\n" } +' $* |