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104 lines
2.1 KiB
Awk
104 lines
2.1 KiB
Awk
#!/usr/bin/awk -f
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#
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#
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# Merge two boot loader help files for FreeBSD 3.0
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# Joe Abley <jabley@patho.gen.nz>
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BEGIN \
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{
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state = 0;
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first = -1;
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ind = 0;
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}
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# beginning of first command
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/^###/ && (state == 0) \
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{
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state = 1;
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next;
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}
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# entry header
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/^# T[[:graph:]]+ (S[[:graph:]]+ )*D[[:graph:]][[:print:]]*$/ && (state == 1) \
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{
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match($0, " T[[:graph:]]+");
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T = substr($0, RSTART + 2, RLENGTH - 2);
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match($0, " S[[:graph:]]+");
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SSTART = RSTART
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S = (RLENGTH == -1) ? "" : substr($0, RSTART + 2, RLENGTH - 2);
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match($0, " D[[:graph:]][[:print:]]*$");
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D = substr($0, RSTART + 2);
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if (SSTART > RSTART)
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S = "";
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# find a suitable place to store this one...
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ind++;
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if (ind == 1)
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{
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first = ind;
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help[ind, "T"] = T;
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help[ind, "S"] = S;
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help[ind, "link"] = -1;
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} else {
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i = first; j = -1;
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while (help[i, "T"] help[i, "S"] < T S)
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{
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j = i;
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i = help[i, "link"];
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if (i == -1) break;
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}
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if (i == -1)
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{
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help[j, "link"] = ind;
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help[ind, "link"] = -1;
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} else {
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help[ind, "link"] = i;
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if (j == -1)
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first = ind;
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else
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help[j, "link"] = ind;
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}
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}
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help[ind, "T"] = T;
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help[ind, "S"] = S;
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help[ind, "D"] = D;
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# set our state
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state = 2;
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help[ind, "text"] = 0;
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next;
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}
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# end of last command, beginning of next one
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/^###/ && (state == 2) \
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{
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state = 1;
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}
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(state == 2) \
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{
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sub("[[:blank:]]+$", "");
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if (help[ind, "text"] == 0 && $0 ~ /^[[:blank:]]*$/) next;
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help[ind, "text", help[ind, "text"]] = $0;
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help[ind, "text"]++;
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next;
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}
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# show them what we have (it's already sorted in help[])
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END \
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{
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node = first;
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while (node != -1)
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{
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printf "################################################################################\n";
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printf "# T%s ", help[node, "T"];
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if (help[node, "S"] != "") printf "S%s ", help[node, "S"];
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printf "D%s\n\n", help[node, "D"];
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for (i = 0; i < help[node, "text"]; i++)
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printf "%s\n", help[node, "text", i];
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node = help[node, "link"];
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}
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printf "################################################################################\n";
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}
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