dotfiles/bin/fr

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2020-11-08 16:26:14 +00:00
#!/bin/gawk -f
BEGIN {
PAT = "(" ENVIRON["PAT"] ")"
STR = ENVIRON["STR"]
REP = ENVIRON["REP"]
COL = ENVIRON["COL"]
OLD = "\033[31m"
NEW = "\033[32m"
LNN = "\033[30m\033[47m"
LNH = "\033[30m\033[41m"
RST = "\033[0m"
CTX = 2
#print "PAT:" PAT
#print "STR:" STR
}
function min(a, b) {
return a > b ? b : a
}
function fileend() {
if (REP) exit
split(buffer, lines, "\n")
if (!length(lines)) exit
printf "\033[42m\033[30m%s%" COL-length(filename) "s\033[0m\n", filename, " "
pad = length(length(lines) - 1)
for (i in lines) {
if (!match(lines[i], /([[:digit:]]+)(:|-)(.*)$/, m))
continue
linno = m[1]
found = m[2] == ":"
line = m[3]
print (found ? LNH : LNN) sprintf(" %"pad"d ", linno) RST line
}
}
!REP && FNR == 1 {
if (buffer) fileend()
filename = FILENAME
delete before
buffer = ""
printed = 0
}
!REP {
delete data
line = gensub(PAT, OLD "\\1" NEW STR RST, "g", $0)
found = index(line, OLD)
fmted = FNR (found ? ":" : "-") line
if (found) {
for (i = min(FNR-printed-1, CTX); i > 0; i--) {
if (before[i]) buffer = buffer "\n" before[i]
}
buffer = buffer "\n" fmted
printed = FNR
keep = CTX
} else if (keep-- > 0) {
buffer = buffer "\n" fmted
printed = FNR
}
for (i = CTX; i > 1; i--) {
before[i] = before[i - 1]
}
before[1] = fmted
}
END { fileend() }
REP {
print gensub(PAT, STR, "g", $0)
}